summaryrefslogtreecommitdiffstats
path: root/libraries/liblber
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /libraries/liblber
parentInitial commit. (diff)
downloadopenldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz
openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libraries/liblber')
-rw-r--r--libraries/liblber/Makefile.in56
-rw-r--r--libraries/liblber/assert.c40
-rw-r--r--libraries/liblber/bprint.c296
-rw-r--r--libraries/liblber/debug.c73
-rw-r--r--libraries/liblber/decode.c1026
-rw-r--r--libraries/liblber/dtest.c121
-rw-r--r--libraries/liblber/encode.c651
-rw-r--r--libraries/liblber/etest.c181
-rw-r--r--libraries/liblber/idtest.c87
-rw-r--r--libraries/liblber/io.c725
-rw-r--r--libraries/liblber/lber-int.h225
-rw-r--r--libraries/liblber/lber.pc.in12
-rw-r--r--libraries/liblber/liblber.vers.in17
-rw-r--r--libraries/liblber/memory.c825
-rw-r--r--libraries/liblber/nt_err.c96
-rw-r--r--libraries/liblber/options.c237
-rw-r--r--libraries/liblber/sockbuf.c988
-rw-r--r--libraries/liblber/stdio.c243
18 files changed, 5899 insertions, 0 deletions
diff --git a/libraries/liblber/Makefile.in b/libraries/liblber/Makefile.in
new file mode 100644
index 0000000..a843449
--- /dev/null
+++ b/libraries/liblber/Makefile.in
@@ -0,0 +1,56 @@
+# LIBLBER
+# $OpenLDAP$
+## This work is part of OpenLDAP Software <http://www.openldap.org/>.
+##
+## Copyright 1998-2022 The OpenLDAP Foundation.
+## All rights reserved.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted only as authorized by the OpenLDAP
+## Public License.
+##
+## A copy of this license is available in the file LICENSE in the
+## top-level directory of the distribution or, alternatively, at
+## <http://www.OpenLDAP.org/license.html>.
+
+LIBRARY = liblber.la
+
+NT_SRCS = nt_err.c
+NT_OBJS = nt_err.lo
+
+UNIX_SRCS = stdio.c
+UNIX_OBJS = stdio.lo
+
+LIB_DEFS = -DLBER_LIBRARY
+
+SRCS= assert.c decode.c encode.c io.c bprint.c debug.c \
+ memory.c options.c sockbuf.c $(@PLAT@_SRCS)
+OBJS= assert.lo decode.lo encode.lo io.lo bprint.lo debug.lo \
+ memory.lo options.lo sockbuf.lo $(@PLAT@_OBJS)
+XSRCS= version.c
+
+PROGRAMS= dtest etest idtest
+
+LDAP_INCDIR= ../../include
+LDAP_LIBDIR= ../../libraries
+
+XLIBS = $(LIBRARY) $(LDAP_LIBLUTIL_A)
+XXLIBS =
+NT_LINK_LIBS = $(AC_LIBS)
+UNIX_LINK_LIBS = $(AC_LIBS)
+ifneq (,$(OL_VERSIONED_SYMBOLS))
+ SYMBOL_VERSION_FLAGS=$(OL_VERSIONED_SYMBOLS)$(LDAP_LIBDIR)/liblber/liblber.vers
+endif
+
+dtest: $(XLIBS) dtest.o
+ $(LTLINK) -o $@ dtest.o $(LIBS)
+etest: $(XLIBS) etest.o
+ $(LTLINK) -o $@ etest.o $(LIBS)
+idtest: $(XLIBS) idtest.o
+ $(LTLINK) -o $@ idtest.o $(LIBS)
+
+install-local: FORCE
+ -$(MKDIR) $(DESTDIR)$(libdir)
+ $(LTINSTALL) $(INSTALLFLAGS) -m 644 $(LIBRARY) $(DESTDIR)$(libdir)
+ $(LTFINISH) $(DESTDIR)$(libdir)
+
diff --git a/libraries/liblber/assert.c b/libraries/liblber/assert.c
new file mode 100644
index 0000000..bcaa9af
--- /dev/null
+++ b/libraries/liblber/assert.c
@@ -0,0 +1,40 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#ifdef LDAP_NEED_ASSERT
+
+#include <stdio.h>
+
+/*
+ * helper for our private assert() macro
+ *
+ * note: if assert() doesn't exist, like abort() or raise() won't either.
+ * could use kill() but that might be problematic. I'll just ignore this
+ * issue for now.
+ */
+
+void
+ber_pvt_assert( const char *file, int line, const char *test )
+{
+ fprintf(stderr,
+ _("Assertion failed: %s, file %s, line %d\n"),
+ test, file, line);
+
+ abort();
+}
+
+#endif
diff --git a/libraries/liblber/bprint.c b/libraries/liblber/bprint.c
new file mode 100644
index 0000000..a82e138
--- /dev/null
+++ b/libraries/liblber/bprint.c
@@ -0,0 +1,296 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/*
+ * Copyright (c) 1991 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/ctype.h>
+#include <ac/stdarg.h>
+#include <ac/string.h>
+
+#include "lber-int.h"
+
+#define ber_log_check(errlvl, loglvl) ((errlvl) & (loglvl))
+
+BER_LOG_FN ber_int_log_proc = NULL;
+
+/*
+ * We don't just set ber_pvt_err_file to stderr here, because in NT,
+ * stderr is a symbol imported from a DLL. As such, the compiler
+ * doesn't recognize the symbol as having a constant address. Thus
+ * we set ber_pvt_err_file to stderr later, when it first gets
+ * referenced.
+ */
+FILE *ber_pvt_err_file = NULL;
+
+/*
+ * ber errno
+ */
+BER_ERRNO_FN ber_int_errno_fn = NULL;
+
+int * ber_errno_addr(void)
+{
+ static int ber_int_errno = LBER_ERROR_NONE;
+
+ if( ber_int_errno_fn ) {
+ return (*ber_int_errno_fn)();
+ }
+
+ return &ber_int_errno;
+}
+
+/*
+ * Print stuff
+ */
+void ber_error_print( LDAP_CONST char *data )
+{
+ assert( data != NULL );
+
+ if (!ber_pvt_err_file) ber_pvt_err_file = stderr;
+
+ fputs( data, ber_pvt_err_file );
+
+ /* Print to both streams */
+ if (ber_pvt_err_file != stderr) {
+ fputs( data, stderr );
+ fflush( stderr );
+ }
+
+ fflush( ber_pvt_err_file );
+}
+
+BER_LOG_PRINT_FN ber_pvt_log_print = ber_error_print;
+
+/*
+ * lber log
+ */
+
+int ber_pvt_log_output(
+ const char *subsystem,
+ int level,
+ const char *fmt,
+ ... )
+{
+ char buf[1024];
+ va_list vl;
+ va_start( vl, fmt );
+
+ if ( ber_int_log_proc != NULL ) {
+ ber_int_log_proc( ber_pvt_err_file, subsystem, level, fmt, vl );
+
+ } else {
+ int level;
+ ber_get_option( NULL, LBER_OPT_BER_DEBUG, &level );
+ buf[sizeof(buf) - 1] = '\0';
+ vsnprintf( buf, sizeof(buf)-1, fmt, vl );
+ if ( ber_log_check( LDAP_DEBUG_BER, level ) ) {
+ (*ber_pvt_log_print)( buf );
+ }
+ }
+
+ va_end(vl);
+ return 1;
+}
+
+int ber_pvt_log_printf( int errlvl, int loglvl, const char *fmt, ... )
+{
+ char buf[1024];
+ va_list ap;
+
+ assert( fmt != NULL );
+
+ if ( !ber_log_check( errlvl, loglvl )) {
+ return 0;
+ }
+
+ va_start( ap, fmt );
+
+ buf[sizeof(buf) - 1] = '\0';
+ vsnprintf( buf, sizeof(buf)-1, fmt, ap );
+
+ va_end(ap);
+
+ (*ber_pvt_log_print)( buf );
+ return 1;
+}
+
+#if 0
+static int ber_log_puts(int errlvl, int loglvl, char *buf)
+{
+ assert( buf != NULL );
+
+ if ( !ber_log_check( errlvl, loglvl )) {
+ return 0;
+ }
+
+ (*ber_pvt_log_print)( buf );
+ return 1;
+}
+#endif
+
+/*
+ * Print arbitrary stuff, for debugging.
+ */
+
+int
+ber_log_bprint(int errlvl,
+ int loglvl,
+ const char *data,
+ ber_len_t len )
+{
+ assert( data != NULL );
+
+ if ( !ber_log_check( errlvl, loglvl )) {
+ return 0;
+ }
+
+ ber_bprint(data, len);
+ return 1;
+}
+
+void
+ber_bprint(
+ LDAP_CONST char *data,
+ ber_len_t len )
+{
+ static const char hexdig[] = "0123456789abcdef";
+#define BP_OFFSET 9
+#define BP_GRAPH 60
+#define BP_LEN 80
+ char line[BP_LEN];
+ ber_len_t i;
+
+ assert( data != NULL );
+
+ /* in case len is zero */
+ line[0] = '\n';
+ line[1] = '\0';
+
+ for ( i = 0 ; i < len ; i++ ) {
+ int n = i % 16;
+ unsigned off;
+
+ if( !n ) {
+ if( i ) (*ber_pvt_log_print)( line );
+ memset( line, ' ', sizeof(line)-2 );
+ line[sizeof(line)-2] = '\n';
+ line[sizeof(line)-1] = '\0';
+
+ off = i % 0x0ffffU;
+
+ line[2] = hexdig[0x0f & (off >> 12)];
+ line[3] = hexdig[0x0f & (off >> 8)];
+ line[4] = hexdig[0x0f & (off >> 4)];
+ line[5] = hexdig[0x0f & off];
+ line[6] = ':';
+ }
+
+ off = BP_OFFSET + n*3 + ((n >= 8)?1:0);
+ line[off] = hexdig[0x0f & ( data[i] >> 4 )];
+ line[off+1] = hexdig[0x0f & data[i]];
+
+ off = BP_GRAPH + n + ((n >= 8)?1:0);
+
+ if ( isprint( (unsigned char) data[i] )) {
+ line[BP_GRAPH + n] = data[i];
+ } else {
+ line[BP_GRAPH + n] = '.';
+ }
+ }
+
+ (*ber_pvt_log_print)( line );
+}
+
+
+int
+ber_log_dump(
+ int errlvl,
+ int loglvl,
+ BerElement *ber,
+ int inout )
+{
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( !ber_log_check( errlvl, loglvl )) {
+ return 0;
+ }
+
+ ber_dump(ber, inout);
+ return 1;
+}
+
+void
+ber_dump(
+ BerElement *ber,
+ int inout )
+{
+ char buf[132];
+ ber_len_t len;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( inout == 1 ) {
+ len = ber_pvt_ber_remaining(ber);
+ } else {
+ len = ber_pvt_ber_write(ber);
+ }
+
+ sprintf( buf, "ber_dump: buf=%p ptr=%p end=%p len=%ld\n",
+ ber->ber_buf,
+ ber->ber_ptr,
+ ber->ber_end,
+ (long) len );
+
+ (void) (*ber_pvt_log_print)( buf );
+
+ ber_bprint( ber->ber_ptr, len );
+}
+
+typedef struct seqorset Seqorset;
+
+/* Exists for binary compatibility with OpenLDAP 2.4.17-- */
+int
+ber_log_sos_dump(
+ int errlvl,
+ int loglvl,
+ Seqorset *sos )
+{
+ return 0;
+}
+
+/* Exists for binary compatibility with OpenLDAP 2.4.17-- */
+void
+ber_sos_dump(
+ Seqorset *sos )
+{
+}
diff --git a/libraries/liblber/debug.c b/libraries/liblber/debug.c
new file mode 100644
index 0000000..1744e58
--- /dev/null
+++ b/libraries/liblber/debug.c
@@ -0,0 +1,73 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdarg.h>
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/time.h>
+#include <ac/ctype.h>
+
+#ifdef LDAP_SYSLOG
+#include <ac/syslog.h>
+#endif
+
+#include "ldap_log.h"
+#include "ldap_defaults.h"
+#include "lber.h"
+#include "ldap_pvt.h"
+
+int lutil_debug_file( FILE *file )
+{
+ ber_set_option( NULL, LBER_OPT_LOG_PRINT_FILE, file );
+
+ return 0;
+}
+
+void (lutil_debug)( int debug, int level, const char *fmt, ... )
+{
+ char buffer[4096];
+ va_list vl;
+
+ if ( !(level & debug ) ) return;
+
+ va_start( vl, fmt );
+ vsnprintf( buffer, sizeof(buffer), fmt, vl );
+ va_end( vl );
+ ber_pvt_log_print( buffer );
+}
+
+#if defined(HAVE_EBCDIC) && defined(LDAP_SYSLOG)
+#undef syslog
+void eb_syslog( int pri, const char *fmt, ... )
+{
+ char buffer[4096];
+ va_list vl;
+
+ va_start( vl, fmt );
+ vsnprintf( buffer, sizeof(buffer), fmt, vl );
+ buffer[sizeof(buffer)-1] = '\0';
+
+ /* The syslog function appears to only work with pure EBCDIC */
+ __atoe(buffer);
+#pragma convlit(suspend)
+ syslog( pri, "%s", buffer );
+#pragma convlit(resume)
+ va_end( vl );
+}
+#endif
diff --git a/libraries/liblber/decode.c b/libraries/liblber/decode.c
new file mode 100644
index 0000000..48696e0
--- /dev/null
+++ b/libraries/liblber/decode.c
@@ -0,0 +1,1026 @@
+/* decode.c - ber input decoding routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/stdarg.h>
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "lber-int.h"
+
+
+/* out->bv_len should be the buffer size on input */
+int
+ber_decode_oid( BerValue *in, BerValue *out )
+{
+ const unsigned char *der;
+ unsigned long val;
+ unsigned val1;
+ ber_len_t i;
+ char *ptr;
+
+ assert( in != NULL );
+ assert( out != NULL );
+
+ /* need 4 chars/inbyte + \0 for input={7f 7f 7f...} */
+ if ( !out->bv_val || (out->bv_len+3)/4 <= in->bv_len )
+ return -1;
+
+ ptr = NULL;
+ der = (unsigned char *) in->bv_val;
+ val = 0;
+ for ( i=0; i < in->bv_len; i++ ) {
+ val |= der[i] & 0x7f;
+ if ( !( der[i] & 0x80 )) {
+ if ( ptr == NULL ) {
+ /* Initial "x.y": val=x*40+y, x<=2, y<40 if x<2 */
+ ptr = out->bv_val;
+ val1 = (val < 80 ? val/40 : 2);
+ val -= val1*40;
+ ptr += sprintf( ptr, "%u", val1 );
+ }
+ ptr += sprintf( ptr, ".%lu", val );
+ val = 0;
+ } else if ( val - 1UL < LBER_OID_COMPONENT_MAX >> 7 ) {
+ val <<= 7;
+ } else {
+ /* val would overflow, or is 0 from invalid initial 0x80 octet */
+ return -1;
+ }
+ }
+ if ( ptr == NULL || val != 0 )
+ return -1;
+
+ out->bv_len = ptr - out->bv_val;
+ return 0;
+}
+
+/* Return tag, with *bv = rest of element (starting at length octets) */
+static ber_tag_t
+ber_tag_and_rest( const BerElement *ber, struct berval *bv )
+{
+ ber_tag_t tag;
+ ptrdiff_t rest;
+ unsigned char *ptr;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ ptr = (unsigned char *) ber->ber_ptr;
+ rest = (unsigned char *) ber->ber_end - ptr;
+ if ( rest <= 0 ) {
+ goto fail;
+ }
+
+ tag = ber->ber_tag;
+ if ( (char *) ptr == ber->ber_buf ) {
+ tag = *ptr;
+ }
+ ptr++;
+ rest--;
+ if ( (tag & LBER_BIG_TAG_MASK) != LBER_BIG_TAG_MASK ) {
+ goto done;
+ }
+
+ do {
+ if ( rest <= 0 ) {
+ break;
+ }
+ tag <<= 8;
+ tag |= *ptr++ & 0xffU;
+ rest--;
+
+ if ( ! (tag & LBER_MORE_TAG_MASK) ) {
+ goto done;
+ }
+ } while ( tag <= (ber_tag_t)-1 / 256 );
+
+ fail:
+ /* Error or unsupported tag size */
+ tag = LBER_DEFAULT;
+
+ done:
+ bv->bv_len = rest;
+ bv->bv_val = (char *) ptr;
+ return tag;
+}
+
+/* Return the tag - LBER_DEFAULT returned means trouble */
+ber_tag_t
+ber_get_tag( BerElement *ber )
+{
+ struct berval bv;
+ ber_tag_t tag = ber_tag_and_rest( ber, &bv );
+
+ ber->ber_ptr = bv.bv_val;
+ return tag;
+}
+
+/* Return next element's tag and point *bv at its contents in-place */
+ber_tag_t
+ber_peek_element( const BerElement *ber, struct berval *bv )
+{
+ ber_tag_t tag;
+ ber_len_t len, rest;
+ unsigned i;
+ unsigned char *ptr;
+
+ assert( bv != NULL );
+
+ /*
+ * Any ber element looks like this: tag length contents.
+ * Assuming everything's ok, we return the tag, and point
+ * bv at the contents.
+ *
+ * Assumptions:
+ * 1) definite lengths
+ * 2) primitive encodings used whenever possible
+ */
+
+ len = 0;
+
+ /*
+ * First, we read the tag.
+ */
+ tag = ber_tag_and_rest( ber, bv );
+
+ rest = bv->bv_len;
+ ptr = (unsigned char *) bv->bv_val;
+ if ( tag == LBER_DEFAULT || rest == 0 ) {
+ goto fail;
+ }
+
+ /*
+ * Next, read the length. The first octet determines the length
+ * of the length. If bit 8 is 0, the length is the short form,
+ * otherwise if the octet != 0x80 it's the long form, otherwise
+ * the ber element has the unsupported indefinite-length format.
+ * Lengths that do not fit in a ber_len_t are not accepted.
+ */
+
+ len = *ptr++;
+ rest--;
+
+ if ( len & 0x80U ) {
+ len &= 0x7fU;
+ if ( len - 1U > sizeof(ber_len_t) - 1U || rest < len ) {
+ /* Indefinite-length/too long length/not enough data */
+ goto fail;
+ }
+
+ rest -= len;
+ i = len;
+ for( len = *ptr++ & 0xffU; --i; len |= *ptr++ & 0xffU ) {
+ len <<= 8;
+ }
+ }
+
+ /* BER element should have enough data left */
+ if( len > rest ) {
+ fail:
+ tag = LBER_DEFAULT;
+ }
+
+ bv->bv_len = len;
+ bv->bv_val = (char *) ptr;
+ return tag;
+}
+
+/* Move past next element, point *bv at it in-place, and return its tag.
+ * The caller may \0-terminate *bv, as next octet is saved in ber->ber_tag.
+ * Similar to ber_get_stringbv(ber, bv, LBER_BV_NOTERM) except on error.
+ */
+ber_tag_t
+ber_skip_element( BerElement *ber, struct berval *bv )
+{
+ ber_tag_t tag = ber_peek_element( ber, bv );
+
+ if ( tag != LBER_DEFAULT ) {
+ ber->ber_ptr = bv->bv_val + bv->bv_len;
+ ber->ber_tag = *(unsigned char *) ber->ber_ptr;
+ }
+
+ return tag;
+}
+
+/* Move past next element, point *bv at the complete element in-place, and
+ * return its tag. The caller may \0-terminate *bv, as next octet is saved in
+ * ber->ber_tag. Similar to ber_skip_element(ber, bv) except the tag+length
+ * header is also included in *bv.
+ */
+ber_tag_t
+ber_skip_raw( BerElement *ber, struct berval *bv )
+{
+ char *val = ber->ber_ptr;
+ ber_tag_t tag = ber_skip_element( ber, bv );
+
+ if ( tag != LBER_DEFAULT ) {
+ bv->bv_len += bv->bv_val - val;
+ bv->bv_val = val;
+ }
+
+ return tag;
+}
+
+ber_tag_t
+ber_peek_tag(
+ BerElement *ber,
+ ber_len_t *len )
+{
+ struct berval bv;
+ ber_tag_t tag = ber_peek_element( ber, &bv );
+
+ *len = bv.bv_len;
+ return tag;
+}
+
+ber_tag_t
+ber_skip_tag( BerElement *ber, ber_len_t *lenp )
+{
+ struct berval bv;
+ ber_tag_t tag = ber_peek_element( ber, &bv );
+
+ ber->ber_ptr = bv.bv_val;
+ ber->ber_tag = *(unsigned char *) ber->ber_ptr;
+
+ *lenp = bv.bv_len;
+ return tag;
+}
+
+ber_tag_t
+ber_get_int(
+ BerElement *ber,
+ ber_int_t *num )
+{
+ struct berval bv;
+ ber_tag_t tag = ber_skip_element( ber, &bv );
+
+ if ( tag == LBER_DEFAULT ) {
+ return tag;
+ }
+
+ return ber_decode_int( &bv, num ) ? LBER_DEFAULT : tag;
+}
+
+int
+ber_decode_int( const struct berval *bv, ber_int_t *num )
+{
+ ber_len_t len = bv->bv_len;
+ if ( len > sizeof(ber_int_t) )
+ return -1;
+
+ assert( num != NULL );
+
+ /* parse two's complement integer */
+ if( len ) {
+ unsigned char *buf = (unsigned char *) bv->bv_val;
+ ber_len_t i;
+ ber_int_t netnum = buf[0] & 0xff;
+
+ /* sign extend */
+ netnum = (netnum ^ 0x80) - 0x80;
+
+ /* shift in the bytes */
+ for( i = 1; i < len; i++ ) {
+ netnum = (netnum << 8 ) | buf[i];
+ }
+
+ *num = netnum;
+
+ } else {
+ *num = 0;
+ }
+
+ return 0;
+}
+
+ber_tag_t
+ber_get_enum(
+ BerElement *ber,
+ ber_int_t *num )
+{
+ return ber_get_int( ber, num );
+}
+
+ber_tag_t
+ber_get_stringb(
+ BerElement *ber,
+ char *buf,
+ ber_len_t *len )
+{
+ struct berval bv;
+ ber_tag_t tag;
+
+ if ( (tag = ber_skip_element( ber, &bv )) == LBER_DEFAULT ) {
+ return LBER_DEFAULT;
+ }
+
+ /* must fit within allocated space with termination */
+ if ( bv.bv_len >= *len ) {
+ return LBER_DEFAULT;
+ }
+
+ memcpy( buf, bv.bv_val, bv.bv_len );
+ buf[bv.bv_len] = '\0';
+
+ *len = bv.bv_len;
+ return tag;
+}
+
+/* Definitions for get_string vector
+ *
+ * ChArray, BvArray, and BvVec are self-explanatory.
+ * BvOff is a struct berval embedded in an array of larger structures
+ * of siz bytes at off bytes from the beginning of the struct.
+ */
+enum bgbvc { ChArray, BvArray, BvVec, BvOff };
+
+/* Use this single cookie for state, to keep actual
+ * stack use to the absolute minimum.
+ */
+typedef struct bgbvr {
+ const enum bgbvc choice;
+ const int option; /* (ALLOC unless BvOff) | (STRING if ChArray) */
+ ber_len_t siz; /* input array element size, output count */
+ ber_len_t off; /* BvOff offset to the struct berval */
+ void *result;
+} bgbvr;
+
+static ber_tag_t
+ber_get_stringbvl( BerElement *ber, bgbvr *b )
+{
+ int i = 0, n;
+ ber_tag_t tag;
+ ber_len_t tot_size = 0, siz = b->siz;
+ char *last, *orig;
+ struct berval bv, *bvp = NULL;
+ union stringbvl_u {
+ char **ca; /* ChArray */
+ BerVarray ba; /* BvArray */
+ struct berval **bv; /* BvVec */
+ char *bo; /* BvOff */
+ } res;
+
+ tag = ber_skip_tag( ber, &bv.bv_len );
+
+ if ( tag != LBER_DEFAULT ) {
+ tag = 0;
+ orig = ber->ber_ptr;
+ last = orig + bv.bv_len;
+
+ for ( ; ber->ber_ptr < last; i++, tot_size += siz ) {
+ if ( ber_skip_element( ber, &bv ) == LBER_DEFAULT )
+ break;
+ }
+ if ( ber->ber_ptr != last ) {
+ i = 0;
+ tag = LBER_DEFAULT;
+ }
+
+ ber->ber_ptr = orig;
+ ber->ber_tag = *(unsigned char *) orig;
+ }
+
+ b->siz = i;
+ if ( i == 0 ) {
+ return tag;
+ }
+
+ /* Allocate and NULL-terminate the result vector */
+ b->result = ber_memalloc_x( tot_size + siz, ber->ber_memctx );
+ if ( b->result == NULL ) {
+ return LBER_DEFAULT;
+ }
+ switch (b->choice) {
+ case ChArray:
+ res.ca = b->result;
+ res.ca[i] = NULL;
+ break;
+ case BvArray:
+ res.ba = b->result;
+ res.ba[i].bv_val = NULL;
+ break;
+ case BvVec:
+ res.bv = b->result;
+ res.bv[i] = NULL;
+ break;
+ case BvOff:
+ res.bo = (char *) b->result + b->off;
+ ((struct berval *) (res.bo + tot_size))->bv_val = NULL;
+ tot_size = 0;
+ break;
+ }
+
+ n = 0;
+ do {
+ tag = ber_get_stringbv( ber, &bv, b->option );
+ if ( tag == LBER_DEFAULT ) {
+ goto failed;
+ }
+
+ /* store my result */
+ switch (b->choice) {
+ case ChArray:
+ res.ca[n] = bv.bv_val;
+ break;
+ case BvArray:
+ res.ba[n] = bv;
+ break;
+ case BvVec:
+ bvp = ber_memalloc_x( sizeof( struct berval ),
+ ber->ber_memctx );
+ if ( !bvp ) {
+ ber_memfree_x( bv.bv_val, ber->ber_memctx );
+ goto failed;
+ }
+ res.bv[n] = bvp;
+ *bvp = bv;
+ break;
+ case BvOff:
+ *(struct berval *)(res.bo + tot_size) = bv;
+ tot_size += siz;
+ break;
+ }
+ } while (++n < i);
+ return tag;
+
+failed:
+ if (b->choice != BvOff) { /* BvOff does not have LBER_BV_ALLOC set */
+ while (--n >= 0) {
+ switch(b->choice) {
+ case ChArray:
+ ber_memfree_x(res.ca[n], ber->ber_memctx);
+ break;
+ case BvArray:
+ ber_memfree_x(res.ba[n].bv_val, ber->ber_memctx);
+ break;
+ case BvVec:
+ ber_memfree_x(res.bv[n]->bv_val, ber->ber_memctx);
+ ber_memfree_x(res.bv[n], ber->ber_memctx);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ ber_memfree_x(b->result, ber->ber_memctx);
+ b->result = NULL;
+ return LBER_DEFAULT;
+}
+
+ber_tag_t
+ber_get_stringbv( BerElement *ber, struct berval *bv, int option )
+{
+ ber_tag_t tag;
+ char *data;
+
+ tag = ber_skip_element( ber, bv );
+ if ( tag == LBER_DEFAULT ||
+ (( option & LBER_BV_STRING ) &&
+ bv->bv_len && memchr( bv->bv_val, 0, bv->bv_len - 1 )))
+ {
+ bv->bv_val = NULL;
+ return LBER_DEFAULT;
+ }
+
+ data = bv->bv_val;
+ if ( option & LBER_BV_ALLOC ) {
+ bv->bv_val = (char *) ber_memalloc_x( bv->bv_len + 1,
+ ber->ber_memctx );
+ if ( bv->bv_val == NULL ) {
+ return LBER_DEFAULT;
+ }
+
+ if ( bv->bv_len != 0 ) {
+ memcpy( bv->bv_val, data, bv->bv_len );
+ }
+ data = bv->bv_val;
+ }
+ if ( !( option & LBER_BV_NOTERM ))
+ data[bv->bv_len] = '\0';
+
+ return tag;
+}
+
+ber_tag_t
+ber_get_stringbv_null( BerElement *ber, struct berval *bv, int option )
+{
+ ber_tag_t tag;
+ char *data;
+
+ tag = ber_skip_element( ber, bv );
+ if ( tag == LBER_DEFAULT || bv->bv_len == 0 ) {
+ bv->bv_val = NULL;
+ return tag;
+ }
+
+ if (( option & LBER_BV_STRING ) &&
+ memchr( bv->bv_val, 0, bv->bv_len - 1 ))
+ {
+ bv->bv_val = NULL;
+ return LBER_DEFAULT;
+ }
+
+ data = bv->bv_val;
+ if ( option & LBER_BV_ALLOC ) {
+ bv->bv_val = (char *) ber_memalloc_x( bv->bv_len + 1,
+ ber->ber_memctx );
+ if ( bv->bv_val == NULL ) {
+ return LBER_DEFAULT;
+ }
+
+ memcpy( bv->bv_val, data, bv->bv_len );
+ data = bv->bv_val;
+ }
+ if ( !( option & LBER_BV_NOTERM ))
+ data[bv->bv_len] = '\0';
+
+ return tag;
+}
+
+ber_tag_t
+ber_get_stringa( BerElement *ber, char **buf )
+{
+ BerValue bv;
+ ber_tag_t tag;
+
+ assert( buf != NULL );
+
+ tag = ber_get_stringbv( ber, &bv, LBER_BV_ALLOC | LBER_BV_STRING );
+ *buf = bv.bv_val;
+
+ return tag;
+}
+
+ber_tag_t
+ber_get_stringa_null( BerElement *ber, char **buf )
+{
+ BerValue bv;
+ ber_tag_t tag;
+
+ assert( buf != NULL );
+
+ tag = ber_get_stringbv_null( ber, &bv, LBER_BV_ALLOC | LBER_BV_STRING );
+ *buf = bv.bv_val;
+
+ return tag;
+}
+
+ber_tag_t
+ber_get_stringal( BerElement *ber, struct berval **bv )
+{
+ ber_tag_t tag;
+
+ assert( ber != NULL );
+ assert( bv != NULL );
+
+ *bv = (struct berval *) ber_memalloc_x( sizeof(struct berval),
+ ber->ber_memctx );
+ if ( *bv == NULL ) {
+ return LBER_DEFAULT;
+ }
+
+ tag = ber_get_stringbv( ber, *bv, LBER_BV_ALLOC );
+ if ( tag == LBER_DEFAULT ) {
+ ber_memfree_x( *bv, ber->ber_memctx );
+ *bv = NULL;
+ }
+ return tag;
+}
+
+ber_tag_t
+ber_get_bitstringa(
+ BerElement *ber,
+ char **buf,
+ ber_len_t *blen )
+{
+ ber_tag_t tag;
+ struct berval data;
+ unsigned char unusedbits;
+
+ assert( buf != NULL );
+ assert( blen != NULL );
+
+ if ( (tag = ber_skip_element( ber, &data )) == LBER_DEFAULT ) {
+ goto fail;
+ }
+
+ if ( --data.bv_len > (ber_len_t)-1 / 8 ) {
+ goto fail;
+ }
+ unusedbits = *(unsigned char *) data.bv_val++;
+ if ( unusedbits > 7 ) {
+ goto fail;
+ }
+
+ if ( memchr( data.bv_val, 0, data.bv_len )) {
+ goto fail;
+ }
+
+ *buf = (char *) ber_memalloc_x( data.bv_len, ber->ber_memctx );
+ if ( *buf == NULL ) {
+ return LBER_DEFAULT;
+ }
+ memcpy( *buf, data.bv_val, data.bv_len );
+
+ *blen = data.bv_len * 8 - unusedbits;
+ return tag;
+
+ fail:
+ *buf = NULL;
+ return LBER_DEFAULT;
+}
+
+ber_tag_t
+ber_get_null( BerElement *ber )
+{
+ ber_len_t len;
+ ber_tag_t tag = ber_skip_tag( ber, &len );
+
+ return( len == 0 ? tag : LBER_DEFAULT );
+}
+
+ber_tag_t
+ber_get_boolean(
+ BerElement *ber,
+ ber_int_t *boolval )
+{
+ return ber_get_int( ber, boolval );
+}
+
+ber_tag_t
+ber_first_element(
+ BerElement *ber,
+ ber_len_t *len,
+ char **last )
+{
+ assert( last != NULL );
+
+ /* skip the sequence header, use the len to mark where to stop */
+ if ( ber_skip_tag( ber, len ) == LBER_DEFAULT ) {
+ *last = NULL;
+ return LBER_DEFAULT;
+ }
+
+ *last = ber->ber_ptr + *len;
+
+ if ( *len == 0 ) {
+ return LBER_DEFAULT;
+ }
+
+ return ber_peek_tag( ber, len );
+}
+
+ber_tag_t
+ber_next_element(
+ BerElement *ber,
+ ber_len_t *len,
+ LDAP_CONST char *last )
+{
+ assert( ber != NULL );
+ assert( last != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_ptr >= last ) {
+ return LBER_DEFAULT;
+ }
+
+ return ber_peek_tag( ber, len );
+}
+
+/* VARARGS */
+ber_tag_t
+ber_scanf ( BerElement *ber,
+ LDAP_CONST char *fmt,
+ ... )
+{
+ va_list ap;
+ LDAP_CONST char *fmt_reset;
+ char *s, **ss, ***sss;
+ struct berval data, *bval, **bvp, ***bvpp;
+ ber_int_t *i;
+ ber_len_t *l;
+ ber_tag_t *t;
+ ber_tag_t rc;
+ ber_len_t len;
+
+ va_start( ap, fmt );
+
+ assert( ber != NULL );
+ assert( fmt != NULL );
+ assert( LBER_VALID( ber ) );
+
+ fmt_reset = fmt;
+
+ if ( ber->ber_debug & (LDAP_DEBUG_TRACE|LDAP_DEBUG_BER)) {
+ ber_log_printf( LDAP_DEBUG_TRACE, ber->ber_debug,
+ "ber_scanf fmt (%s) ber:\n", fmt );
+ ber_log_dump( LDAP_DEBUG_BER, ber->ber_debug, ber, 1 );
+ }
+
+ for ( rc = 0; *fmt && rc != LBER_DEFAULT; fmt++ ) {
+ /* When this is modified, remember to update
+ * the error-cleanup code below accordingly. */
+ switch ( *fmt ) {
+ case '!': { /* Hook */
+ BERDecodeCallback *f;
+ void *p;
+
+ f = va_arg( ap, BERDecodeCallback * );
+ p = va_arg( ap, void * );
+
+ rc = (*f)( ber, p, 0 );
+ } break;
+
+ case 'a': /* octet string - allocate storage as needed */
+ ss = va_arg( ap, char ** );
+ rc = ber_get_stringa( ber, ss );
+ break;
+
+ case 'A': /* octet string - allocate storage as needed,
+ * but return NULL if len == 0 */
+ ss = va_arg( ap, char ** );
+ rc = ber_get_stringa_null( ber, ss );
+ break;
+
+ case 'b': /* boolean */
+ i = va_arg( ap, ber_int_t * );
+ rc = ber_get_boolean( ber, i );
+ break;
+
+ case 'B': /* bit string - allocate storage as needed */
+ ss = va_arg( ap, char ** );
+ l = va_arg( ap, ber_len_t * ); /* for length, in bits */
+ rc = ber_get_bitstringa( ber, ss, l );
+ break;
+
+ case 'e': /* enumerated */
+ case 'i': /* integer */
+ i = va_arg( ap, ber_int_t * );
+ rc = ber_get_int( ber, i );
+ break;
+
+ case 'l': /* length of next item */
+ l = va_arg( ap, ber_len_t * );
+ rc = ber_peek_tag( ber, l );
+ break;
+
+ case 'm': /* octet string in berval, in-place */
+ bval = va_arg( ap, struct berval * );
+ rc = ber_get_stringbv( ber, bval, 0 );
+ break;
+
+ case 'M': /* bvoffarray - must include address of
+ * a record len, and record offset.
+ * number of records will be returned thru
+ * len ptr on finish. parsed in-place.
+ */
+ {
+ bgbvr cookie = { BvOff, 0 };
+ bvp = va_arg( ap, struct berval ** );
+ l = va_arg( ap, ber_len_t * );
+ cookie.siz = *l;
+ cookie.off = va_arg( ap, ber_len_t );
+ rc = ber_get_stringbvl( ber, &cookie );
+ *bvp = cookie.result;
+ *l = cookie.siz;
+ break;
+ }
+
+ case 'n': /* null */
+ rc = ber_get_null( ber );
+ break;
+
+ case 'o': /* octet string in a supplied berval */
+ bval = va_arg( ap, struct berval * );
+ rc = ber_get_stringbv( ber, bval, LBER_BV_ALLOC );
+ break;
+
+ case 'O': /* octet string - allocate & include length */
+ bvp = va_arg( ap, struct berval ** );
+ rc = ber_get_stringal( ber, bvp );
+ break;
+
+ case 's': /* octet string - in a buffer */
+ s = va_arg( ap, char * );
+ l = va_arg( ap, ber_len_t * );
+ rc = ber_get_stringb( ber, s, l );
+ break;
+
+ case 't': /* tag of next item */
+ t = va_arg( ap, ber_tag_t * );
+ *t = rc = ber_peek_tag( ber, &len );
+ break;
+
+ case 'T': /* skip tag of next item */
+ t = va_arg( ap, ber_tag_t * );
+ *t = rc = ber_skip_tag( ber, &len );
+ break;
+
+ case 'v': /* sequence of strings */
+ {
+ bgbvr cookie = {
+ ChArray, LBER_BV_ALLOC | LBER_BV_STRING, sizeof( char * )
+ };
+ rc = ber_get_stringbvl( ber, &cookie );
+ *(va_arg( ap, char *** )) = cookie.result;
+ break;
+ }
+
+ case 'V': /* sequence of strings + lengths */
+ {
+ bgbvr cookie = {
+ BvVec, LBER_BV_ALLOC, sizeof( struct berval * )
+ };
+ rc = ber_get_stringbvl( ber, &cookie );
+ *(va_arg( ap, struct berval *** )) = cookie.result;
+ break;
+ }
+
+ case 'W': /* bvarray */
+ {
+ bgbvr cookie = {
+ BvArray, LBER_BV_ALLOC, sizeof( struct berval )
+ };
+ rc = ber_get_stringbvl( ber, &cookie );
+ *(va_arg( ap, struct berval ** )) = cookie.result;
+ break;
+ }
+
+ case 'x': /* skip the next element - whatever it is */
+ rc = ber_skip_element( ber, &data );
+ break;
+
+ case '{': /* begin sequence */
+ case '[': /* begin set */
+ switch ( fmt[1] ) {
+ case 'v': case 'V': case 'W': case 'M':
+ break;
+ default:
+ rc = ber_skip_tag( ber, &len );
+ break;
+ }
+ break;
+
+ case '}': /* end sequence */
+ case ']': /* end set */
+ break;
+
+ default:
+ if( ber->ber_debug ) {
+ ber_log_printf( LDAP_DEBUG_ANY, ber->ber_debug,
+ "ber_scanf: unknown fmt %c\n", *fmt );
+ }
+ rc = LBER_DEFAULT;
+ break;
+ }
+ }
+
+ va_end( ap );
+
+ if ( rc == LBER_DEFAULT ) {
+ /*
+ * Error. Reclaim malloced memory that was given to the caller.
+ * Set allocated pointers to NULL, "data length" outvalues to 0.
+ */
+ va_start( ap, fmt );
+
+ for ( ; fmt_reset < fmt; fmt_reset++ ) {
+ switch ( *fmt_reset ) {
+ case '!': { /* Hook */
+ BERDecodeCallback *f;
+ void *p;
+
+ f = va_arg( ap, BERDecodeCallback * );
+ p = va_arg( ap, void * );
+
+ (void) (*f)( ber, p, 1 );
+ } break;
+
+ case 'a': /* octet string - allocate storage as needed */
+ case 'A':
+ ss = va_arg( ap, char ** );
+ ber_memfree_x( *ss, ber->ber_memctx );
+ *ss = NULL;
+ break;
+
+ case 'b': /* boolean */
+ case 'e': /* enumerated */
+ case 'i': /* integer */
+ (void) va_arg( ap, ber_int_t * );
+ break;
+
+ case 'l': /* length of next item */
+ *(va_arg( ap, ber_len_t * )) = 0;
+ break;
+
+ case 'm': /* berval in-place */
+ bval = va_arg( ap, struct berval * );
+ BER_BVZERO( bval );
+ break;
+
+ case 'M': /* BVoff array in-place */
+ bvp = va_arg( ap, struct berval ** );
+ ber_memfree_x( *bvp, ber->ber_memctx );
+ *bvp = NULL;
+ *(va_arg( ap, ber_len_t * )) = 0;
+ (void) va_arg( ap, ber_len_t );
+ break;
+
+ case 'o': /* octet string in a supplied berval */
+ bval = va_arg( ap, struct berval * );
+ ber_memfree_x( bval->bv_val, ber->ber_memctx );
+ BER_BVZERO( bval );
+ break;
+
+ case 'O': /* octet string - allocate & include length */
+ bvp = va_arg( ap, struct berval ** );
+ ber_bvfree_x( *bvp, ber->ber_memctx );
+ *bvp = NULL;
+ break;
+
+ case 's': /* octet string - in a buffer */
+ (void) va_arg( ap, char * );
+ *(va_arg( ap, ber_len_t * )) = 0;
+ break;
+
+ case 't': /* tag of next item */
+ case 'T': /* skip tag of next item */
+ (void) va_arg( ap, ber_tag_t * );
+ break;
+
+ case 'B': /* bit string - allocate storage as needed */
+ ss = va_arg( ap, char ** );
+ ber_memfree_x( *ss, ber->ber_memctx );
+ *ss = NULL;
+ *(va_arg( ap, ber_len_t * )) = 0; /* for length, in bits */
+ break;
+
+ case 'v': /* sequence of strings */
+ sss = va_arg( ap, char *** );
+ ber_memvfree_x( (void **) *sss, ber->ber_memctx );
+ *sss = NULL;
+ break;
+
+ case 'V': /* sequence of strings + lengths */
+ bvpp = va_arg( ap, struct berval *** );
+ ber_bvecfree_x( *bvpp, ber->ber_memctx );
+ *bvpp = NULL;
+ break;
+
+ case 'W': /* BerVarray */
+ bvp = va_arg( ap, struct berval ** );
+ ber_bvarray_free_x( *bvp, ber->ber_memctx );
+ *bvp = NULL;
+ break;
+
+ case 'n': /* null */
+ case 'x': /* skip the next element - whatever it is */
+ case '{': /* begin sequence */
+ case '[': /* begin set */
+ case '}': /* end sequence */
+ case ']': /* end set */
+ break;
+
+ default:
+ /* format should be good */
+ assert( 0 );
+ }
+ }
+
+ va_end( ap );
+ }
+
+ return rc;
+}
diff --git a/libraries/liblber/dtest.c b/libraries/liblber/dtest.c
new file mode 100644
index 0000000..4785254
--- /dev/null
+++ b/libraries/liblber/dtest.c
@@ -0,0 +1,121 @@
+/* dtest.c - lber decoding test program */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/socket.h>
+#include <ac/unistd.h>
+#include <ac/errno.h>
+
+#ifdef HAVE_CONSOLE_H
+#include <console.h>
+#endif
+
+#include <lber.h>
+
+static void usage( const char *name )
+{
+ fprintf( stderr, "usage: %s fmt\n", name );
+}
+
+int
+main( int argc, char **argv )
+{
+ char *s;
+
+ ber_tag_t tag;
+ ber_len_t len;
+
+ BerElement *ber;
+ Sockbuf *sb;
+ int fd;
+
+ /* enable debugging */
+ int ival = -1;
+ ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &ival );
+
+ if ( argc < 2 ) {
+ usage( argv[0] );
+ return( EXIT_FAILURE );
+ }
+
+#ifdef HAVE_CONSOLE_H
+ ccommand( &argv );
+ cshow( stdout );
+#endif
+
+ sb = ber_sockbuf_alloc();
+ fd = fileno( stdin );
+ ber_sockbuf_add_io( sb, &ber_sockbuf_io_fd, LBER_SBIOD_LEVEL_PROVIDER,
+ (void *)&fd );
+
+ ber = ber_alloc_t(LBER_USE_DER);
+ if( ber == NULL ) {
+ perror( "ber_alloc_t" );
+ return( EXIT_FAILURE );
+ }
+
+ for (;;) {
+ tag = ber_get_next( sb, &len, ber);
+ if( tag != LBER_ERROR ) break;
+
+ if( errno == EWOULDBLOCK ) continue;
+ if( errno == EAGAIN ) continue;
+
+ perror( "ber_get_next" );
+ return( EXIT_FAILURE );
+ }
+
+ printf("decode: message tag 0x%lx and length %ld\n",
+ (unsigned long) tag, (long) len );
+
+ for( s = argv[1]; *s; s++ ) {
+ char buf[128];
+ char fmt[2];
+ fmt[0] = *s;
+ fmt[1] = '\0';
+
+ printf("decode: format %s\n", fmt );
+ len = sizeof(buf);
+ tag = ber_scanf( ber, fmt, &buf[0], &len );
+
+ if( tag == LBER_ERROR ) {
+ perror( "ber_scanf" );
+ return( EXIT_FAILURE );
+ }
+ }
+
+ ber_sockbuf_free( sb );
+ return( EXIT_SUCCESS );
+}
diff --git a/libraries/liblber/encode.c b/libraries/liblber/encode.c
new file mode 100644
index 0000000..30d28eb
--- /dev/null
+++ b/libraries/liblber/encode.c
@@ -0,0 +1,651 @@
+/* encode.c - ber output encoding routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <ctype.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#include <ac/stdarg.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+
+#include "lber-int.h"
+
+
+#define OCTET_SIZE(type) ((ber_len_t) (sizeof(type)*CHAR_BIT + 7) / 8)
+#define TAGBUF_SIZE OCTET_SIZE(ber_tag_t)
+#define LENBUF_SIZE (1 + OCTET_SIZE(ber_len_t))
+#define HEADER_SIZE (TAGBUF_SIZE + LENBUF_SIZE)
+
+/*
+ * BER element size constrains:
+ *
+ * - We traditionally support a length of max 0xffffffff. However
+ * some functions return an int length so that is their max.
+ * MAXINT_BERSIZE is the max for those functions.
+ *
+ * - MAXINT_BERSIZE must fit in MAXINT_BERSIZE_OCTETS octets.
+ *
+ * - sizeof(ber_elem_size_t) is normally MAXINT_BERSIZE_OCTETS:
+ * Big enough for MAXINT_BERSIZE, but not more. (Larger wastes
+ * space in the working encoding and DER encoding of a sequence
+ * or set. Smaller further limits sizes near a sequence/set.)
+ *
+ * ber_len_t is mostly unrelated to this. Which may be for the best,
+ * since it is also used for lengths of data that are never encoded.
+ */
+#define MAXINT_BERSIZE \
+ (INT_MAX>0xffffffffUL ? (ber_len_t) 0xffffffffUL : INT_MAX-HEADER_SIZE)
+#define MAXINT_BERSIZE_OCTETS 4
+typedef ber_uint_t ber_elem_size_t; /* normally 32 bits */
+
+
+/* Prepend tag to ptr, which points to the end of a tag buffer */
+static unsigned char *
+ber_prepend_tag( unsigned char *ptr, ber_tag_t tag )
+{
+ do {
+ *--ptr = (unsigned char) tag & 0xffU;
+ } while ( (tag >>= 8) != 0 );
+
+ return ptr;
+}
+
+/* Prepend ber length to ptr, which points to the end of a length buffer */
+static unsigned char *
+ber_prepend_len( unsigned char *ptr, ber_len_t len )
+{
+ /*
+ * short len if it's less than 128 - one byte giving the len,
+ * with bit 8 0.
+ * long len otherwise - one byte with bit 8 set, giving the
+ * length of the length, followed by the length itself.
+ */
+
+ *--ptr = (unsigned char) len & 0xffU;
+
+ if ( len >= 0x80 ) {
+ unsigned char *endptr = ptr--;
+
+ while ( (len >>= 8) != 0 ) {
+ *ptr-- = (unsigned char) len & 0xffU;
+ }
+ *ptr = (unsigned char) (endptr - ptr) + 0x80U;
+ }
+
+ return ptr;
+}
+
+/* out->bv_len should be the buffer size on input */
+int
+ber_encode_oid( BerValue *in, BerValue *out )
+{
+ unsigned char *der;
+ unsigned long val1, val;
+ int i, j, len;
+ char *ptr, *end, *inend;
+
+ assert( in != NULL );
+ assert( out != NULL );
+
+ if ( !out->bv_val || out->bv_len < in->bv_len/2 )
+ return -1;
+
+ der = (unsigned char *) out->bv_val;
+ ptr = in->bv_val;
+ inend = ptr + in->bv_len;
+
+ /* OIDs start with <0-1>.<0-39> or 2.<any>, DER-encoded 40*val1+val2 */
+ if ( !isdigit( (unsigned char) *ptr )) return -1;
+ val1 = strtoul( ptr, &end, 10 );
+ if ( end == ptr || val1 > 2 ) return -1;
+ if ( *end++ != '.' || !isdigit( (unsigned char) *end )) return -1;
+ val = strtoul( end, &ptr, 10 );
+ if ( ptr == end ) return -1;
+ if ( val > (val1 < 2 ? 39 : LBER_OID_COMPONENT_MAX - 80) ) return -1;
+ val += val1 * 40;
+
+ for (;;) {
+ if ( ptr > inend ) return -1;
+
+ /* Write the OID component little-endian, then reverse it */
+ len = 0;
+ do {
+ der[len++] = (val & 0xff) | 0x80;
+ } while ( (val >>= 7) != 0 );
+ der[0] &= 0x7f;
+ for ( i = 0, j = len; i < --j; i++ ) {
+ unsigned char tmp = der[i];
+ der[i] = der[j];
+ der[j] = tmp;
+ }
+ der += len;
+
+ if ( ptr == inend )
+ break;
+
+ if ( *ptr++ != '.' ) return -1;
+ if ( !isdigit( (unsigned char) *ptr )) return -1;
+ val = strtoul( ptr, &end, 10 );
+ if ( end == ptr || val > LBER_OID_COMPONENT_MAX ) return -1;
+ ptr = end;
+ }
+
+ out->bv_len = (char *)der - out->bv_val;
+ return 0;
+}
+
+static int
+ber_put_int_or_enum(
+ BerElement *ber,
+ ber_int_t num,
+ ber_tag_t tag )
+{
+ ber_uint_t unum;
+ unsigned char sign, data[TAGBUF_SIZE+1 + OCTET_SIZE(ber_int_t)], *ptr;
+
+ sign = 0;
+ unum = num; /* Bit fiddling should be done with unsigned values */
+ if ( num < 0 ) {
+ sign = 0xffU;
+ unum = ~unum;
+ }
+ for ( ptr = &data[sizeof(data) - 1] ;; unum >>= 8 ) {
+ *ptr-- = (sign ^ (unsigned char) unum) & 0xffU;
+ if ( unum < 0x80 ) /* top bit at *ptr is sign bit */
+ break;
+ }
+
+ *ptr = (unsigned char) (&data[sizeof(data) - 1] - ptr); /* length */
+ ptr = ber_prepend_tag( ptr, tag );
+
+ return ber_write( ber, (char *) ptr, &data[sizeof(data)] - ptr, 0 );
+}
+
+int
+ber_put_enum(
+ BerElement *ber,
+ ber_int_t num,
+ ber_tag_t tag )
+{
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_ENUMERATED;
+ }
+
+ return ber_put_int_or_enum( ber, num, tag );
+}
+
+int
+ber_put_int(
+ BerElement *ber,
+ ber_int_t num,
+ ber_tag_t tag )
+{
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_INTEGER;
+ }
+
+ return ber_put_int_or_enum( ber, num, tag );
+}
+
+int
+ber_put_ostring(
+ BerElement *ber,
+ LDAP_CONST char *str,
+ ber_len_t len,
+ ber_tag_t tag )
+{
+ int rc;
+ unsigned char header[HEADER_SIZE], *ptr;
+
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_OCTETSTRING;
+ }
+
+ if ( len > MAXINT_BERSIZE ) {
+ return -1;
+ }
+
+ ptr = ber_prepend_len( &header[sizeof(header)], len );
+ ptr = ber_prepend_tag( ptr, tag );
+
+ rc = ber_write( ber, (char *) ptr, &header[sizeof(header)] - ptr, 0 );
+ if ( rc >= 0 && ber_write( ber, str, len, 0 ) >= 0 ) {
+ /* length(tag + length + contents) */
+ return rc + (int) len;
+ }
+
+ return -1;
+}
+
+int
+ber_put_berval(
+ BerElement *ber,
+ struct berval *bv,
+ ber_tag_t tag )
+{
+ if( bv == NULL || bv->bv_len == 0 ) {
+ return ber_put_ostring( ber, "", (ber_len_t) 0, tag );
+ }
+
+ return ber_put_ostring( ber, bv->bv_val, bv->bv_len, tag );
+}
+
+int
+ber_put_string(
+ BerElement *ber,
+ LDAP_CONST char *str,
+ ber_tag_t tag )
+{
+ assert( str != NULL );
+
+ return ber_put_ostring( ber, str, strlen( str ), tag );
+}
+
+int
+ber_put_bitstring(
+ BerElement *ber,
+ LDAP_CONST char *str,
+ ber_len_t blen /* in bits */,
+ ber_tag_t tag )
+{
+ int rc;
+ ber_len_t len;
+ unsigned char unusedbits, header[HEADER_SIZE + 1], *ptr;
+
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_BITSTRING;
+ }
+
+ unusedbits = (unsigned char) -blen & 7;
+ len = blen / 8 + (unusedbits != 0); /* (blen+7)/8 without overflow */
+ if ( len >= MAXINT_BERSIZE ) {
+ return -1;
+ }
+
+ header[sizeof(header) - 1] = unusedbits;
+ ptr = ber_prepend_len( &header[sizeof(header) - 1], len + 1 );
+ ptr = ber_prepend_tag( ptr, tag );
+
+ rc = ber_write( ber, (char *) ptr, &header[sizeof(header)] - ptr, 0 );
+ if ( rc >= 0 && ber_write( ber, str, len, 0 ) >= 0 ) {
+ /* length(tag + length + unused bit count + bitstring) */
+ return rc + (int) len;
+ }
+
+ return -1;
+}
+
+int
+ber_put_null( BerElement *ber, ber_tag_t tag )
+{
+ unsigned char data[TAGBUF_SIZE + 1], *ptr;
+
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_NULL;
+ }
+
+ data[sizeof(data) - 1] = 0; /* length */
+ ptr = ber_prepend_tag( &data[sizeof(data) - 1], tag );
+
+ return ber_write( ber, (char *) ptr, &data[sizeof(data)] - ptr, 0 );
+}
+
+int
+ber_put_boolean(
+ BerElement *ber,
+ ber_int_t boolval,
+ ber_tag_t tag )
+{
+ unsigned char data[TAGBUF_SIZE + 2], *ptr;
+
+ if ( tag == LBER_DEFAULT )
+ tag = LBER_BOOLEAN;
+
+ data[sizeof(data) - 1] = boolval ? 0xff : 0;
+ data[sizeof(data) - 2] = 1; /* length */
+ ptr = ber_prepend_tag( &data[sizeof(data) - 2], tag );
+
+ return ber_write( ber, (char *) ptr, &data[sizeof(data)] - ptr, 0 );
+}
+
+
+/* Max number of length octets in a sequence or set, normally 5 */
+#define SOS_LENLEN (1 + (sizeof(ber_elem_size_t) > MAXINT_BERSIZE_OCTETS ? \
+ (ber_len_t) sizeof(ber_elem_size_t) : MAXINT_BERSIZE_OCTETS))
+
+/* Header of incomplete sequence or set */
+typedef struct seqorset_header {
+ char xtagbuf[TAGBUF_SIZE + 1]; /* room for tag + len(tag or len) */
+ union {
+ ber_elem_size_t offset; /* enclosing sequence/set */
+ char padding[SOS_LENLEN-1]; /* for final length encoding */
+ } next_sos;
+# define SOS_TAG_END(header) ((unsigned char *) &(header).next_sos - 1)
+} Seqorset_header;
+
+/* Start a sequence or set */
+static int
+ber_start_seqorset(
+ BerElement *ber,
+ ber_tag_t tag )
+{
+ /*
+ * Write the tag and SOS_LENLEN octets reserved for length, to ber.
+ * For now, length octets = (tag length, previous ber_sos_inner).
+ *
+ * Update ber_sos_inner and the write-cursor ber_sos_ptr. ber_ptr
+ * will not move until the outermost sequence or set is complete.
+ */
+
+ Seqorset_header header;
+ unsigned char *headptr;
+ ber_len_t taglen, headlen;
+ char *dest, **p;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_sos_ptr == NULL ) { /* outermost sequence/set? */
+ header.next_sos.offset = 0;
+ p = &ber->ber_ptr;
+ } else {
+ if ( (ber_len_t) -1 > (ber_elem_size_t) -1 ) {
+ if ( ber->ber_sos_inner > (ber_elem_size_t) -1 )
+ return -1;
+ }
+ header.next_sos.offset = ber->ber_sos_inner;
+ p = &ber->ber_sos_ptr;
+ }
+ headptr = ber_prepend_tag( SOS_TAG_END(header), tag );
+ *SOS_TAG_END(header) = taglen = SOS_TAG_END(header) - headptr;
+ headlen = taglen + SOS_LENLEN;
+
+ /* As ber_write(,headptr,headlen,) except update ber_sos_ptr, not *p */
+ if ( headlen > (ber_len_t) (ber->ber_end - *p) ) {
+ if ( ber_realloc( ber, headlen ) != 0 )
+ return -1;
+ }
+ dest = *p;
+ AC_MEMCPY( dest, headptr, headlen );
+ ber->ber_sos_ptr = dest + headlen;
+
+ ber->ber_sos_inner = dest + taglen - ber->ber_buf;
+
+ /*
+ * Do not return taglen + SOS_LENLEN here - then ber_put_seqorset()
+ * should return lenlen - SOS_LENLEN + len, which can be < 0.
+ */
+ return 0;
+}
+
+int
+ber_start_seq( BerElement *ber, ber_tag_t tag )
+{
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_SEQUENCE;
+ }
+
+ return ber_start_seqorset( ber, tag );
+}
+
+int
+ber_start_set( BerElement *ber, ber_tag_t tag )
+{
+ if ( tag == LBER_DEFAULT ) {
+ tag = LBER_SET;
+ }
+
+ return ber_start_seqorset( ber, tag );
+}
+
+/* End a sequence or set */
+static int
+ber_put_seqorset( BerElement *ber )
+{
+ Seqorset_header header;
+ unsigned char *lenptr; /* length octets in the sequence/set */
+ ber_len_t len; /* length(contents) */
+ ber_len_t xlen; /* len + length(length) */
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_sos_ptr == NULL ) return -1;
+
+ lenptr = (unsigned char *) ber->ber_buf + ber->ber_sos_inner;
+ xlen = ber->ber_sos_ptr - (char *) lenptr;
+ if ( xlen > MAXINT_BERSIZE + SOS_LENLEN ) {
+ return -1;
+ }
+
+ /* Extract sequence/set information from length octets */
+ memcpy( SOS_TAG_END(header), lenptr, SOS_LENLEN );
+
+ /* Store length, and close gap of leftover reserved length octets */
+ len = xlen - SOS_LENLEN;
+ if ( !(ber->ber_options & LBER_USE_DER) ) {
+ int i;
+ lenptr[0] = SOS_LENLEN - 1 + 0x80; /* length(length)-1 */
+ for( i = SOS_LENLEN; --i > 0; len >>= 8 ) {
+ lenptr[i] = len & 0xffU;
+ }
+ } else {
+ unsigned char *p = ber_prepend_len( lenptr + SOS_LENLEN, len );
+ ber_len_t unused = p - lenptr;
+ if ( unused != 0 ) {
+ /* length(length) < the reserved SOS_LENLEN bytes */
+ xlen -= unused;
+ AC_MEMCPY( lenptr, p, xlen );
+ ber->ber_sos_ptr = (char *) lenptr + xlen;
+ }
+ }
+
+ ber->ber_sos_inner = header.next_sos.offset;
+ if ( header.next_sos.offset == 0 ) { /* outermost sequence/set? */
+ /* The ber_ptr is at the set/seq start - move it to the end */
+ ber->ber_ptr = ber->ber_sos_ptr;
+ ber->ber_sos_ptr = NULL;
+ }
+
+ return xlen + *SOS_TAG_END(header); /* lenlen + len + taglen */
+}
+
+int
+ber_put_seq( BerElement *ber )
+{
+ return ber_put_seqorset( ber );
+}
+
+int
+ber_put_set( BerElement *ber )
+{
+ return ber_put_seqorset( ber );
+}
+
+/* N tag */
+static ber_tag_t lber_int_null = 0;
+
+/* VARARGS */
+int
+ber_printf( BerElement *ber, LDAP_CONST char *fmt, ... )
+{
+ va_list ap;
+ char *s, **ss;
+ struct berval *bv, **bvp;
+ int rc;
+ ber_int_t i;
+ ber_len_t len;
+
+ assert( ber != NULL );
+ assert( fmt != NULL );
+ assert( LBER_VALID( ber ) );
+
+ va_start( ap, fmt );
+
+ for ( rc = 0; *fmt && rc != -1; fmt++ ) {
+ switch ( *fmt ) {
+ case '!': { /* hook */
+ BEREncodeCallback *f;
+ void *p;
+
+ ber->ber_usertag = 0;
+
+ f = va_arg( ap, BEREncodeCallback * );
+ p = va_arg( ap, void * );
+ rc = (*f)( ber, p );
+
+ if ( ber->ber_usertag ) {
+ goto next;
+ }
+ } break;
+
+ case 'b': /* boolean */
+ i = va_arg( ap, ber_int_t );
+ rc = ber_put_boolean( ber, i, ber->ber_tag );
+ break;
+
+ case 'i': /* int */
+ i = va_arg( ap, ber_int_t );
+ rc = ber_put_int( ber, i, ber->ber_tag );
+ break;
+
+ case 'e': /* enumeration */
+ i = va_arg( ap, ber_int_t );
+ rc = ber_put_enum( ber, i, ber->ber_tag );
+ break;
+
+ case 'n': /* null */
+ rc = ber_put_null( ber, ber->ber_tag );
+ break;
+
+ case 'N': /* Debug NULL */
+ rc = 0;
+ if( lber_int_null != 0 ) {
+ /* Insert NULL to ensure peer ignores unknown tags */
+ rc = ber_put_null( ber, lber_int_null );
+ }
+ break;
+
+ case 'o': /* octet string (non-null terminated) */
+ s = va_arg( ap, char * );
+ len = va_arg( ap, ber_len_t );
+ rc = ber_put_ostring( ber, s, len, ber->ber_tag );
+ break;
+
+ case 'O': /* berval octet string */
+ bv = va_arg( ap, struct berval * );
+ if( bv == NULL ) break;
+ rc = ber_put_berval( ber, bv, ber->ber_tag );
+ break;
+
+ case 's': /* string */
+ s = va_arg( ap, char * );
+ rc = ber_put_string( ber, s, ber->ber_tag );
+ break;
+
+ case 'B': /* bit string */
+ case 'X': /* bit string (deprecated) */
+ s = va_arg( ap, char * );
+ len = va_arg( ap, ber_len_t ); /* in bits */
+ rc = ber_put_bitstring( ber, s, len, ber->ber_tag );
+ break;
+
+ case 't': /* tag for the next element */
+ ber->ber_tag = va_arg( ap, ber_tag_t );
+ goto next;
+
+ case 'v': /* vector of strings */
+ if ( (ss = va_arg( ap, char ** )) == NULL )
+ break;
+ for ( i = 0; ss[i] != NULL; i++ ) {
+ if ( (rc = ber_put_string( ber, ss[i],
+ ber->ber_tag )) == -1 )
+ break;
+ }
+ break;
+
+ case 'V': /* sequences of strings + lengths */
+ if ( (bvp = va_arg( ap, struct berval ** )) == NULL )
+ break;
+ for ( i = 0; bvp[i] != NULL; i++ ) {
+ if ( (rc = ber_put_berval( ber, bvp[i],
+ ber->ber_tag )) == -1 )
+ break;
+ }
+ break;
+
+ case 'W': /* BerVarray */
+ if ( (bv = va_arg( ap, BerVarray )) == NULL )
+ break;
+ for ( i = 0; bv[i].bv_val != NULL; i++ ) {
+ if ( (rc = ber_put_berval( ber, &bv[i],
+ ber->ber_tag )) == -1 )
+ break;
+ }
+ break;
+
+ case '{': /* begin sequence */
+ rc = ber_start_seq( ber, ber->ber_tag );
+ break;
+
+ case '}': /* end sequence */
+ rc = ber_put_seqorset( ber );
+ break;
+
+ case '[': /* begin set */
+ rc = ber_start_set( ber, ber->ber_tag );
+ break;
+
+ case ']': /* end set */
+ rc = ber_put_seqorset( ber );
+ break;
+
+ default:
+ if( ber->ber_debug ) {
+ ber_log_printf( LDAP_DEBUG_ANY, ber->ber_debug,
+ "ber_printf: unknown fmt %c\n", *fmt );
+ }
+ rc = -1;
+ break;
+ }
+
+ ber->ber_tag = LBER_DEFAULT;
+ next:;
+ }
+
+ va_end( ap );
+
+ return rc;
+}
diff --git a/libraries/liblber/etest.c b/libraries/liblber/etest.c
new file mode 100644
index 0000000..3f60878
--- /dev/null
+++ b/libraries/liblber/etest.c
@@ -0,0 +1,181 @@
+/* etest.c - lber encoding test program */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#ifdef HAVE_CONSOLE_H
+#include <console.h>
+#endif /* HAVE_CONSOLE_H */
+
+#include "lber.h"
+
+static void usage( const char *name )
+{
+ fprintf( stderr, "usage: %s fmtstring\n", name );
+}
+
+static char* getbuf( void ) {
+ char *p;
+ static char buf[1024];
+
+ if ( fgets( buf, sizeof(buf), stdin ) == NULL ) return NULL;
+
+ if ( (p = strchr( buf, '\n' )) != NULL ) *p = '\0';
+
+ return buf;
+}
+
+int
+main( int argc, char **argv )
+{
+ char *s;
+ int tag;
+
+ int fd, rc;
+ BerElement *ber;
+ Sockbuf *sb;
+
+ /* enable debugging */
+ int ival = -1;
+ ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &ival );
+
+ if ( argc < 2 ) {
+ usage( argv[0] );
+ return( EXIT_FAILURE );
+ }
+
+#ifdef HAVE_CONSOLE_H
+ ccommand( &argv );
+ cshow( stdout );
+
+ if (( fd = open( "lber-test", O_WRONLY|O_CREAT|O_TRUNC|O_BINARY ))
+ < 0 ) {
+ perror( "open" );
+ return( EXIT_FAILURE );
+ }
+
+#else
+ fd = fileno(stdout);
+#endif
+
+ sb = ber_sockbuf_alloc();
+ ber_sockbuf_add_io( sb, &ber_sockbuf_io_fd, LBER_SBIOD_LEVEL_PROVIDER,
+ (void *)&fd );
+
+ if( sb == NULL ) {
+ perror( "ber_sockbuf_alloc_fd" );
+ return( EXIT_FAILURE );
+ }
+
+ if ( (ber = ber_alloc_t( LBER_USE_DER )) == NULL ) {
+ perror( "ber_alloc" );
+ return( EXIT_FAILURE );
+ }
+
+ fprintf(stderr, "encode: start\n" );
+ if( ber_printf( ber, "{" /*}*/ ) ) {
+ perror( "ber_printf {" /*}*/ );
+ return( EXIT_FAILURE );
+ }
+
+ for ( s = argv[1]; *s; s++ ) {
+ char *buf;
+ char fmt[2];
+
+ fmt[0] = *s;
+ fmt[1] = '\0';
+
+ fprintf(stderr, "encode: %s\n", fmt );
+ switch ( *s ) {
+ case 'i': /* int */
+ case 'b': /* boolean */
+ case 'e': /* enumeration */
+ buf = getbuf();
+ rc = ber_printf( ber, fmt, atoi(buf) );
+ break;
+
+ case 'n': /* null */
+ case '{': /* begin sequence */
+ case '}': /* end sequence */
+ case '[': /* begin set */
+ case ']': /* end set */
+ rc = ber_printf( ber, fmt );
+ break;
+
+ case 'o': /* octet string (non-null terminated) */
+ case 'B': /* bit string */
+ buf = getbuf();
+ rc = ber_printf( ber, fmt, buf, strlen(buf) );
+ break;
+
+ case 's': /* string */
+ buf = getbuf();
+ rc = ber_printf( ber, fmt, buf );
+ break;
+ case 't': /* tag for the next element */
+ buf = getbuf();
+ tag = atoi(buf);
+ rc = ber_printf( ber, fmt, tag );
+ break;
+
+ default:
+ fprintf( stderr, "encode: unknown fmt %c\n", *fmt );
+ rc = -1;
+ break;
+ }
+
+ if( rc == -1 ) {
+ perror( "ber_printf" );
+ return( EXIT_FAILURE );
+ }
+ }
+
+ fprintf(stderr, "encode: end\n" );
+ if( ber_printf( ber, /*{*/ "N}" ) == -1 ) {
+ perror( /*{*/ "ber_printf }" );
+ return( EXIT_FAILURE );
+ }
+
+ if ( ber_flush2( sb, ber, LBER_FLUSH_FREE_ALWAYS ) == -1 ) {
+ perror( "ber_flush2" );
+ return( EXIT_FAILURE );
+ }
+
+ ber_sockbuf_free( sb );
+ return( EXIT_SUCCESS );
+}
diff --git a/libraries/liblber/idtest.c b/libraries/liblber/idtest.c
new file mode 100644
index 0000000..f4e7ac2
--- /dev/null
+++ b/libraries/liblber/idtest.c
@@ -0,0 +1,87 @@
+/* idtest.c - ber decoding test program using isode libraries */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#ifdef HAVE_PSAP_H
+#include <psap.h>
+#include <quipu/attr.h>
+#endif
+
+int
+main( int argc, char **argv )
+{
+#ifdef HAVE_PSAP_H
+ PE pe;
+ PS psin, psout, pserr;
+
+ /* read the pe from standard in */
+ if ( (psin = ps_alloc( std_open )) == NULLPS ) {
+ perror( "ps_alloc" );
+ exit( EXIT_FAILURE );
+ }
+ if ( std_setup( psin, stdin ) == NOTOK ) {
+ perror( "std_setup" );
+ exit( EXIT_FAILURE );
+ }
+ /* write the pe to standard out */
+ if ( (psout = ps_alloc( std_open )) == NULLPS ) {
+ perror( "ps_alloc" );
+ exit( EXIT_FAILURE );
+ }
+ if ( std_setup( psout, stdout ) == NOTOK ) {
+ perror( "std_setup" );
+ exit( EXIT_FAILURE );
+ }
+ /* pretty print it to standard error */
+ if ( (pserr = ps_alloc( std_open )) == NULLPS ) {
+ perror( "ps_alloc" );
+ exit( EXIT_FAILURE );
+ }
+ if ( std_setup( pserr, stderr ) == NOTOK ) {
+ perror( "std_setup" );
+ exit( EXIT_FAILURE );
+ }
+
+ while ( (pe = ps2pe( psin )) != NULLPE ) {
+ pe2pl( pserr, pe );
+ pe2ps( psout, pe );
+ }
+
+ exit( EXIT_SUCCESS );
+#else
+ fprintf(stderr, "requires ISODE X.500 distribution.\n");
+ return( EXIT_FAILURE );
+#endif
+}
diff --git a/libraries/liblber/io.c b/libraries/liblber/io.c
new file mode 100644
index 0000000..ea5aaa6
--- /dev/null
+++ b/libraries/liblber/io.c
@@ -0,0 +1,725 @@
+/* io.c - ber general i/o routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#include <ac/ctype.h>
+#include <ac/errno.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
+
+#include "lber-int.h"
+#include "ldap_log.h"
+
+ber_slen_t
+ber_skip_data(
+ BerElement *ber,
+ ber_len_t len )
+{
+ ber_len_t actuallen, nleft;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ nleft = ber_pvt_ber_remaining( ber );
+ actuallen = nleft < len ? nleft : len;
+ ber->ber_ptr += actuallen;
+ ber->ber_tag = *(unsigned char *)ber->ber_ptr;
+
+ return( (ber_slen_t) actuallen );
+}
+
+/*
+ * Read from the ber buffer. The caller must maintain ber->ber_tag.
+ * Do not use to read whole tags. See ber_get_tag() and ber_skip_data().
+ */
+ber_slen_t
+ber_read(
+ BerElement *ber,
+ char *buf,
+ ber_len_t len )
+{
+ ber_len_t actuallen, nleft;
+
+ assert( ber != NULL );
+ assert( buf != NULL );
+ assert( LBER_VALID( ber ) );
+
+ nleft = ber_pvt_ber_remaining( ber );
+ actuallen = nleft < len ? nleft : len;
+
+ AC_MEMCPY( buf, ber->ber_ptr, actuallen );
+
+ ber->ber_ptr += actuallen;
+
+ return( (ber_slen_t) actuallen );
+}
+
+/*
+ * Write to the ber buffer.
+ * Note that ber_start_seqorset/ber_put_seqorset() bypass ber_write().
+ */
+ber_slen_t
+ber_write(
+ BerElement *ber,
+ LDAP_CONST char *buf,
+ ber_len_t len,
+ int zero ) /* nonzero is unsupported from OpenLDAP 2.4.18 */
+{
+ char **p;
+
+ assert( ber != NULL );
+ assert( buf != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( zero != 0 ) {
+ ber_log_printf( LDAP_DEBUG_ANY, ber->ber_debug, "%s",
+ "ber_write: nonzero 4th argument not supported\n" );
+ return( -1 );
+ }
+
+ p = ber->ber_sos_ptr == NULL ? &ber->ber_ptr : &ber->ber_sos_ptr;
+ if ( len > (ber_len_t) (ber->ber_end - *p) ) {
+ if ( ber_realloc( ber, len ) != 0 ) return( -1 );
+ }
+ AC_MEMCPY( *p, buf, len );
+ *p += len;
+
+ return( (ber_slen_t) len );
+}
+
+/* Resize the ber buffer */
+int
+ber_realloc( BerElement *ber, ber_len_t len )
+{
+ ber_len_t total, offset, sos_offset, rw_offset;
+ char *buf;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ /* leave room for ber_flatten() to \0-terminate ber_buf */
+ if ( ++len == 0 ) {
+ return( -1 );
+ }
+
+ total = ber_pvt_ber_total( ber );
+
+#define LBER_EXBUFSIZ 4060 /* a few words less than 2^N for binary buddy */
+#if defined( LBER_EXBUFSIZ ) && LBER_EXBUFSIZ > 0
+# ifndef notdef
+ /* don't realloc by small amounts */
+ total += len < LBER_EXBUFSIZ ? LBER_EXBUFSIZ : len;
+# else
+ { /* not sure what value this adds. reduce fragmentation? */
+ ber_len_t have = (total + (LBER_EXBUFSIZE - 1)) / LBER_EXBUFSIZ;
+ ber_len_t need = (len + (LBER_EXBUFSIZ - 1)) / LBER_EXBUFSIZ;
+ total = ( have + need ) * LBER_EXBUFSIZ;
+ }
+# endif
+#else
+ total += len; /* realloc just what's needed */
+#endif
+
+ if ( total < len || total > (ber_len_t)-1 / 2 /* max ber_slen_t */ ) {
+ return( -1 );
+ }
+
+ buf = ber->ber_buf;
+ offset = ber->ber_ptr - buf;
+ sos_offset = ber->ber_sos_ptr ? ber->ber_sos_ptr - buf : 0;
+ /* if ber_sos_ptr != NULL, it is > ber_buf so that sos_offset > 0 */
+ rw_offset = ber->ber_rwptr ? ber->ber_rwptr - buf : 0;
+
+ buf = (char *) ber_memrealloc_x( buf, total, ber->ber_memctx );
+ if ( buf == NULL ) {
+ return( -1 );
+ }
+
+ ber->ber_buf = buf;
+ ber->ber_end = buf + total;
+ ber->ber_ptr = buf + offset;
+ if ( sos_offset )
+ ber->ber_sos_ptr = buf + sos_offset;
+ if ( ber->ber_rwptr )
+ ber->ber_rwptr = buf + rw_offset;
+
+ return( 0 );
+}
+
+void
+ber_free_buf( BerElement *ber )
+{
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_buf) ber_memfree_x( ber->ber_buf, ber->ber_memctx );
+
+ ber->ber_buf = NULL;
+ ber->ber_sos_ptr = NULL;
+ ber->ber_valid = LBER_UNINITIALIZED;
+}
+
+void
+ber_free( BerElement *ber, int freebuf )
+{
+ if( ber == NULL ) {
+ LDAP_MEMORY_DEBUG_ASSERT( ber != NULL );
+ return;
+ }
+
+ if( freebuf ) ber_free_buf( ber );
+
+ ber_memfree_x( (char *) ber, ber->ber_memctx );
+}
+
+int
+ber_flush( Sockbuf *sb, BerElement *ber, int freeit )
+{
+ return ber_flush2( sb, ber,
+ freeit ? LBER_FLUSH_FREE_ON_SUCCESS
+ : LBER_FLUSH_FREE_NEVER );
+}
+
+int
+ber_flush2( Sockbuf *sb, BerElement *ber, int freeit )
+{
+ ber_len_t towrite;
+ ber_slen_t rc;
+
+ assert( sb != NULL );
+ assert( ber != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_rwptr == NULL ) {
+ ber->ber_rwptr = ber->ber_buf;
+ }
+ towrite = ber->ber_ptr - ber->ber_rwptr;
+
+ if ( sb->sb_debug ) {
+ ber_log_printf( LDAP_DEBUG_TRACE, sb->sb_debug,
+ "ber_flush2: %ld bytes to sd %ld%s\n",
+ towrite, (long) sb->sb_fd,
+ ber->ber_rwptr != ber->ber_buf ? " (re-flush)" : "" );
+ ber_log_bprint( LDAP_DEBUG_BER, sb->sb_debug,
+ ber->ber_rwptr, towrite );
+ }
+
+ while ( towrite > 0 ) {
+#ifdef LBER_TRICKLE
+ sleep(1);
+ rc = ber_int_sb_write( sb, ber->ber_rwptr, 1 );
+#else
+ rc = ber_int_sb_write( sb, ber->ber_rwptr, towrite );
+#endif
+ if ( rc <= 0 ) {
+ if ( freeit & LBER_FLUSH_FREE_ON_ERROR ) ber_free( ber, 1 );
+ return -1;
+ }
+ towrite -= rc;
+ ber->ber_rwptr += rc;
+ }
+
+ if ( freeit & LBER_FLUSH_FREE_ON_SUCCESS ) ber_free( ber, 1 );
+
+ return 0;
+}
+
+BerElement *
+ber_alloc_t( int options )
+{
+ BerElement *ber;
+
+ ber = (BerElement *) LBER_CALLOC( 1, sizeof(BerElement) );
+
+ if ( ber == NULL ) {
+ return NULL;
+ }
+
+ ber->ber_valid = LBER_VALID_BERELEMENT;
+ ber->ber_tag = LBER_DEFAULT;
+ ber->ber_options = options;
+ ber->ber_debug = ber_int_debug;
+
+ assert( LBER_VALID( ber ) );
+ return ber;
+}
+
+BerElement *
+ber_alloc( void ) /* deprecated */
+{
+ return ber_alloc_t( 0 );
+}
+
+BerElement *
+der_alloc( void ) /* deprecated */
+{
+ return ber_alloc_t( LBER_USE_DER );
+}
+
+BerElement *
+ber_dup( BerElement *ber )
+{
+ BerElement *new;
+
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( (new = ber_alloc_t( ber->ber_options )) == NULL ) {
+ return NULL;
+ }
+
+ *new = *ber;
+
+ assert( LBER_VALID( new ) );
+ return( new );
+}
+
+
+void
+ber_init2( BerElement *ber, struct berval *bv, int options )
+{
+ assert( ber != NULL );
+
+ (void) memset( (char *)ber, '\0', sizeof( BerElement ));
+ ber->ber_valid = LBER_VALID_BERELEMENT;
+ ber->ber_tag = LBER_DEFAULT;
+ ber->ber_options = (char) options;
+ ber->ber_debug = ber_int_debug;
+
+ if ( bv != NULL ) {
+ ber->ber_buf = bv->bv_val;
+ ber->ber_ptr = ber->ber_buf;
+ ber->ber_end = ber->ber_buf + bv->bv_len;
+ }
+
+ assert( LBER_VALID( ber ) );
+}
+
+/* OLD U-Mich ber_init() */
+void
+ber_init_w_nullc( BerElement *ber, int options )
+{
+ ber_init2( ber, NULL, options );
+}
+
+/* New C-API ber_init() */
+/* This function constructs a BerElement containing a copy
+** of the data in the bv argument.
+*/
+BerElement *
+ber_init( struct berval *bv )
+{
+ BerElement *ber;
+
+ assert( bv != NULL );
+
+ if ( bv == NULL ) {
+ return NULL;
+ }
+
+ ber = ber_alloc_t( 0 );
+
+ if( ber == NULL ) {
+ /* allocation failed */
+ return NULL;
+ }
+
+ /* copy the data */
+ if ( ((ber_len_t) ber_write ( ber, bv->bv_val, bv->bv_len, 0 ))
+ != bv->bv_len )
+ {
+ /* write failed, so free and return NULL */
+ ber_free( ber, 1 );
+ return NULL;
+ }
+
+ ber_reset( ber, 1 ); /* reset the pointer to the start of the buffer */
+ return ber;
+}
+
+/* New C-API ber_flatten routine */
+/* This routine allocates a struct berval whose contents are a BER
+** encoding taken from the ber argument. The bvPtr pointer points to
+** the returned berval.
+**
+** ber_flatten2 is the same, but uses a struct berval passed by
+** the caller. If alloc is 0 the returned bv uses the ber buf directly.
+*/
+int ber_flatten2(
+ BerElement *ber,
+ struct berval *bv,
+ int alloc )
+{
+ assert( bv != NULL );
+
+ if ( bv == NULL ) {
+ return -1;
+ }
+
+ if ( ber == NULL ) {
+ /* ber is null, create an empty berval */
+ bv->bv_val = NULL;
+ bv->bv_len = 0;
+
+ } else if ( ber->ber_sos_ptr != NULL ) {
+ /* unmatched "{" and "}" */
+ return -1;
+
+ } else {
+ /* copy the berval */
+ ber_len_t len = ber_pvt_ber_write( ber );
+
+ if ( alloc ) {
+ bv->bv_val = (char *) ber_memalloc_x( len + 1, ber->ber_memctx );
+ if ( bv->bv_val == NULL ) {
+ return -1;
+ }
+ AC_MEMCPY( bv->bv_val, ber->ber_buf, len );
+ bv->bv_val[len] = '\0';
+ } else if ( ber->ber_buf != NULL ) {
+ bv->bv_val = ber->ber_buf;
+ bv->bv_val[len] = '\0';
+ } else {
+ bv->bv_val = "";
+ }
+ bv->bv_len = len;
+ }
+ return 0;
+}
+
+int ber_flatten(
+ BerElement *ber,
+ struct berval **bvPtr)
+{
+ struct berval *bv;
+ int rc;
+
+ assert( bvPtr != NULL );
+
+ if(bvPtr == NULL) {
+ return -1;
+ }
+
+ bv = ber_memalloc_x( sizeof(struct berval), ber->ber_memctx );
+ if ( bv == NULL ) {
+ return -1;
+ }
+ rc = ber_flatten2(ber, bv, 1);
+ if (rc == -1) {
+ ber_memfree_x(bv, ber->ber_memctx);
+ } else {
+ *bvPtr = bv;
+ }
+ return rc;
+}
+
+void
+ber_reset( BerElement *ber, int was_writing )
+{
+ assert( ber != NULL );
+ assert( LBER_VALID( ber ) );
+
+ if ( was_writing ) {
+ ber->ber_end = ber->ber_ptr;
+ ber->ber_ptr = ber->ber_buf;
+
+ } else {
+ ber->ber_ptr = ber->ber_end;
+ }
+
+ ber->ber_rwptr = NULL;
+}
+
+/*
+ * A rewrite of ber_get_next that can safely be called multiple times
+ * for the same packet. It will simply continue where it stopped until
+ * a full packet is read.
+ */
+
+#define LENSIZE 4
+
+ber_tag_t
+ber_get_next(
+ Sockbuf *sb,
+ ber_len_t *len,
+ BerElement *ber )
+{
+ assert( sb != NULL );
+ assert( len != NULL );
+ assert( ber != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+ assert( LBER_VALID( ber ) );
+
+ if ( ber->ber_debug & LDAP_DEBUG_TRACE ) {
+ ber_log_printf( LDAP_DEBUG_TRACE, ber->ber_debug,
+ "ber_get_next\n" );
+ }
+
+ /*
+ * Any ber element looks like this: tag length contents.
+ * Assuming everything's ok, we return the tag byte (we
+ * can assume a single byte), return the length in len,
+ * and the rest of the undecoded element in buf.
+ *
+ * Assumptions:
+ * 1) small tags (less than 128)
+ * 2) definite lengths
+ * 3) primitive encodings used whenever possible
+ *
+ * The code also handles multi-byte tags. The first few bytes
+ * of the message are read to check for multi-byte tags and
+ * lengths. These bytes are temporarily stored in the ber_tag,
+ * ber_len, and ber_usertag fields of the berelement until
+ * tag/len parsing is complete. After this parsing, any leftover
+ * bytes and the rest of the message are copied into the ber_buf.
+ *
+ * We expect tag and len to be at most 32 bits wide.
+ */
+
+ if (ber->ber_rwptr == NULL) {
+ assert( ber->ber_buf == NULL );
+ ber->ber_rwptr = (char *) &ber->ber_len-1;
+ ber->ber_ptr = ber->ber_rwptr;
+ ber->ber_tag = 0;
+ }
+
+ while (ber->ber_rwptr > (char *)&ber->ber_tag && ber->ber_rwptr <
+ (char *)&ber->ber_len + LENSIZE*2) {
+ ber_slen_t sblen;
+ char buf[sizeof(ber->ber_len)-1];
+ ber_len_t tlen = 0;
+
+ /* The tag & len can be at most 9 bytes; we try to read up to 8 here */
+ sock_errset(0);
+ sblen=((char *)&ber->ber_len + LENSIZE*2 - 1)-ber->ber_rwptr;
+ /* Trying to read the last len byte of a 9 byte tag+len */
+ if (sblen<1)
+ sblen = 1;
+ sblen=ber_int_sb_read( sb, ber->ber_rwptr, sblen );
+ if (sblen<=0) return LBER_DEFAULT;
+ ber->ber_rwptr += sblen;
+
+ /* We got at least one byte, try to parse the tag. */
+ if (ber->ber_ptr == (char *)&ber->ber_len-1) {
+ ber_tag_t tag;
+ unsigned char *p = (unsigned char *)ber->ber_ptr;
+ tag = *p++;
+ if ((tag & LBER_BIG_TAG_MASK) == LBER_BIG_TAG_MASK) {
+ ber_len_t i;
+ for (i=1; (char *)p<ber->ber_rwptr; i++) {
+ tag <<= 8;
+ tag |= *p++;
+ if (!(tag & LBER_MORE_TAG_MASK))
+ break;
+ /* Is the tag too big? */
+ if (i == sizeof(ber_tag_t)-1) {
+ sock_errset(ERANGE);
+ return LBER_DEFAULT;
+ }
+ }
+ /* Did we run out of bytes? */
+ if ((char *)p == ber->ber_rwptr) {
+ sock_errset(EWOULDBLOCK);
+ return LBER_DEFAULT;
+ }
+ }
+ ber->ber_tag = tag;
+ ber->ber_ptr = (char *)p;
+ }
+
+ if ( ber->ber_ptr == ber->ber_rwptr ) {
+ sock_errset(EWOULDBLOCK);
+ return LBER_DEFAULT;
+ }
+
+ /* Now look for the length */
+ if (*ber->ber_ptr & 0x80) { /* multi-byte */
+ int i;
+ unsigned char *p = (unsigned char *)ber->ber_ptr;
+ int llen = *p++ & 0x7f;
+ if (llen > LENSIZE) {
+ sock_errset(ERANGE);
+ return LBER_DEFAULT;
+ }
+ /* Not enough bytes? */
+ if (ber->ber_rwptr - (char *)p < llen) {
+ sock_errset(EWOULDBLOCK);
+ return LBER_DEFAULT;
+ }
+ for (i=0; i<llen; i++) {
+ tlen <<=8;
+ tlen |= *p++;
+ }
+ ber->ber_ptr = (char *)p;
+ } else {
+ tlen = *(unsigned char *)ber->ber_ptr++;
+ }
+
+ /* Are there leftover data bytes inside ber->ber_len? */
+ if (ber->ber_ptr < (char *)&ber->ber_usertag) {
+ if (ber->ber_rwptr < (char *)&ber->ber_usertag) {
+ sblen = ber->ber_rwptr - ber->ber_ptr;
+ } else {
+ sblen = (char *)&ber->ber_usertag - ber->ber_ptr;
+ }
+ AC_MEMCPY(buf, ber->ber_ptr, sblen);
+ ber->ber_ptr += sblen;
+ } else {
+ sblen = 0;
+ }
+ ber->ber_len = tlen;
+
+ /* now fill the buffer. */
+
+ /* make sure length is reasonable */
+ if ( ber->ber_len == 0 ) {
+ sock_errset(ERANGE);
+ return LBER_DEFAULT;
+ }
+
+ if ( sb->sb_max_incoming && ber->ber_len > sb->sb_max_incoming ) {
+ ber_log_printf( LDAP_DEBUG_CONNS, ber->ber_debug,
+ "ber_get_next: sockbuf_max_incoming exceeded "
+ "(%ld > %ld)\n", ber->ber_len, sb->sb_max_incoming );
+ sock_errset(ERANGE);
+ return LBER_DEFAULT;
+ }
+
+ if (ber->ber_buf==NULL) {
+ ber_len_t l = ber->ber_rwptr - ber->ber_ptr;
+ /* ber->ber_ptr is always <= ber->ber->ber_rwptr.
+ * make sure ber->ber_len agrees with what we've
+ * already read.
+ */
+ if ( ber->ber_len < sblen + l ) {
+ sock_errset(ERANGE);
+ return LBER_DEFAULT;
+ }
+ ber->ber_buf = (char *) ber_memalloc_x( ber->ber_len + 1, ber->ber_memctx );
+ if (ber->ber_buf==NULL) {
+ return LBER_DEFAULT;
+ }
+ ber->ber_end = ber->ber_buf + ber->ber_len;
+ if (sblen) {
+ AC_MEMCPY(ber->ber_buf, buf, sblen);
+ }
+ if (l > 0) {
+ AC_MEMCPY(ber->ber_buf + sblen, ber->ber_ptr, l);
+ sblen += l;
+ }
+ *ber->ber_end = '\0';
+ ber->ber_ptr = ber->ber_buf;
+ ber->ber_usertag = 0;
+ if ((ber_len_t)sblen == ber->ber_len) {
+ goto done;
+ }
+ ber->ber_rwptr = ber->ber_buf + sblen;
+ }
+ }
+
+ if ((ber->ber_rwptr>=ber->ber_buf) && (ber->ber_rwptr<ber->ber_end)) {
+ ber_slen_t res;
+ ber_slen_t to_go;
+
+ to_go = ber->ber_end - ber->ber_rwptr;
+ /* unsigned/signed overflow */
+ if (to_go<0) return LBER_DEFAULT;
+
+ sock_errset(0);
+ res = ber_int_sb_read( sb, ber->ber_rwptr, to_go );
+ if (res<=0) return LBER_DEFAULT;
+ ber->ber_rwptr+=res;
+
+ if (res<to_go) {
+ sock_errset(EWOULDBLOCK);
+ return LBER_DEFAULT;
+ }
+done:
+ ber->ber_rwptr = NULL;
+ *len = ber->ber_len;
+ if ( ber->ber_debug ) {
+ ber_log_printf( LDAP_DEBUG_TRACE, ber->ber_debug,
+ "ber_get_next: tag 0x%lx len %ld contents:\n",
+ ber->ber_tag, ber->ber_len );
+ ber_log_dump( LDAP_DEBUG_BER, ber->ber_debug, ber, 1 );
+ }
+ return (ber->ber_tag);
+ }
+
+ /* invalid input */
+ return LBER_DEFAULT;
+}
+
+char *
+ber_start( BerElement* ber )
+{
+ return ber->ber_buf;
+}
+
+int
+ber_len( BerElement* ber )
+{
+ return ( ber->ber_end - ber->ber_buf );
+}
+
+int
+ber_ptrlen( BerElement* ber )
+{
+ return ( ber->ber_ptr - ber->ber_buf );
+}
+
+void
+ber_rewind ( BerElement * ber )
+{
+ ber->ber_rwptr = NULL;
+ ber->ber_sos_ptr = NULL;
+ ber->ber_end = ber->ber_ptr;
+ ber->ber_ptr = ber->ber_buf;
+#if 0 /* TODO: Should we add this? */
+ ber->ber_tag = LBER_DEFAULT;
+ ber->ber_usertag = 0;
+#endif
+}
+
+int
+ber_remaining( BerElement * ber )
+{
+ return ber_pvt_ber_remaining( ber );
+}
diff --git a/libraries/liblber/lber-int.h b/libraries/liblber/lber-int.h
new file mode 100644
index 0000000..14a1106
--- /dev/null
+++ b/libraries/liblber/lber-int.h
@@ -0,0 +1,225 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#ifndef _LBER_INT_H
+#define _LBER_INT_H
+
+#include "lber.h"
+#define LDAP_INT_DEBUG
+#include "ldap_log.h"
+#include "lber_pvt.h"
+#include "ldap_queue.h"
+
+LDAP_BEGIN_DECL
+
+typedef void (*BER_LOG_FN)(FILE *file,
+ const char *subsys, int level, const char *fmt, ... );
+
+LBER_V (BER_ERRNO_FN) ber_int_errno_fn;
+
+#ifdef LDAP_MEMORY_TRACE
+# ifndef LDAP_MEMORY_DEBUG
+# define LDAP_MEMORY_DEBUG 1
+# endif
+#endif
+
+#ifdef LDAP_MEMORY_DEBUG
+LBER_V (long) ber_int_meminuse;
+#endif
+#if defined(LDAP_MEMORY_DEBUG) && ((LDAP_MEMORY_DEBUG +0) & 2)
+# define LDAP_MEMORY_DEBUG_ASSERT assert
+#else
+# define LDAP_MEMORY_DEBUG_ASSERT(expr) ((void) 0)
+#endif
+
+struct lber_options {
+ short lbo_valid;
+ unsigned short lbo_options;
+ int lbo_debug;
+};
+
+LBER_F( int ) ber_pvt_log_output(
+ const char *subsystem,
+ int level,
+ const char *fmt, ... );
+
+#define LBER_UNINITIALIZED 0x0
+#define LBER_INITIALIZED 0x1
+#define LBER_VALID_BERELEMENT 0x2
+#define LBER_VALID_SOCKBUF 0x3
+
+LBER_V (struct lber_options) ber_int_options;
+#define ber_int_debug ber_int_options.lbo_debug
+
+/* Data encoded in ASN.1 BER format */
+struct berelement {
+ struct lber_options ber_opts;
+#define ber_valid ber_opts.lbo_valid
+#define ber_options ber_opts.lbo_options
+#define ber_debug ber_opts.lbo_debug
+
+ /*
+ * The members below, when not NULL/LBER_DEFAULT/etc, are:
+ * ber_buf Data buffer. Other pointers normally point into it.
+ * ber_rwptr Read/write cursor for Sockbuf I/O.
+ * ber_memctx Context passed to ber_memalloc() & co.
+ * When decoding data (reading it from the BerElement):
+ * ber_end End of BER data.
+ * ber_ptr Read cursor, except for 1st octet of tags.
+ * ber_tag 1st octet of next tag, saved from *ber_ptr when
+ * ber_ptr may be pointing at a tag and is >ber_buf.
+ * The octet *ber_ptr itself may get overwritten with
+ * a \0, to terminate the preceding element.
+ * When encoding data (writing it to the BerElement):
+ * ber_end End of allocated buffer - 1 (allowing a final \0).
+ * ber_ptr Last complete BER element (normally write cursor).
+ * ber_sos_ptr NULL or write cursor for incomplete sequence or set.
+ * ber_sos_inner offset(seq/set length octets) if ber_sos_ptr!=NULL.
+ * ber_tag Default tag for next ber_printf() element.
+ * ber_usertag Boolean set by ber_printf "!" if it sets ber_tag.
+ * ber_len Reused for ber_sos_inner.
+ * When output to a Sockbuf:
+ * ber_ptr End of encoded data to write.
+ * When input from a Sockbuf:
+ * See ber_get_next().
+ */
+
+ /* Do not change the order of these 3 fields! see ber_get_next */
+ ber_tag_t ber_tag;
+ ber_len_t ber_len;
+ ber_tag_t ber_usertag;
+
+ char *ber_buf;
+ char *ber_ptr;
+ char *ber_end;
+
+ char *ber_sos_ptr;
+# define ber_sos_inner ber_len /* reused for binary compat */
+
+ char *ber_rwptr;
+ void *ber_memctx;
+};
+#define LBER_VALID(ber) ((ber)->ber_valid==LBER_VALID_BERELEMENT)
+
+#define ber_pvt_ber_remaining(ber) ((ber)->ber_end - (ber)->ber_ptr)
+#define ber_pvt_ber_total(ber) ((ber)->ber_end - (ber)->ber_buf)
+#define ber_pvt_ber_write(ber) ((ber)->ber_ptr - (ber)->ber_buf)
+
+struct sockbuf {
+ struct lber_options sb_opts;
+ Sockbuf_IO_Desc *sb_iod; /* I/O functions */
+#define sb_valid sb_opts.lbo_valid
+#define sb_options sb_opts.lbo_options
+#define sb_debug sb_opts.lbo_debug
+ ber_socket_t sb_fd;
+ ber_len_t sb_max_incoming;
+ unsigned int sb_trans_needs_read:1;
+ unsigned int sb_trans_needs_write:1;
+#ifdef LDAP_PF_LOCAL_SENDMSG
+ char sb_ungetlen;
+ char sb_ungetbuf[8];
+#endif
+};
+
+#define SOCKBUF_VALID( sb ) ( (sb)->sb_valid == LBER_VALID_SOCKBUF )
+
+
+/*
+ * decode.c, encode.c
+ */
+
+/* Simplest OID max-DER-component to implement in both decode and encode */
+#define LBER_OID_COMPONENT_MAX ((unsigned long)-1 - 128)
+
+
+/*
+ * io.c
+ */
+LBER_F( int )
+ber_realloc LDAP_P((
+ BerElement *ber,
+ ber_len_t len ));
+
+LBER_F (char *) ber_start LDAP_P(( BerElement * ));
+LBER_F (int) ber_len LDAP_P(( BerElement * ));
+LBER_F (int) ber_ptrlen LDAP_P(( BerElement * ));
+LBER_F (void) ber_rewind LDAP_P(( BerElement * ));
+
+/*
+ * bprint.c
+ */
+#define ber_log_printf ber_pvt_log_printf
+
+LBER_F( int )
+ber_log_bprint LDAP_P((
+ int errlvl,
+ int loglvl,
+ const char *data,
+ ber_len_t len ));
+
+LBER_F( int )
+ber_log_dump LDAP_P((
+ int errlvl,
+ int loglvl,
+ BerElement *ber,
+ int inout ));
+
+LBER_V (BER_LOG_FN) ber_int_log_proc;
+LBER_V (FILE *) ber_pvt_err_file;
+
+/* memory.c */
+ /* simple macros to realloc for now */
+LBER_V (BerMemoryFunctions *) ber_int_memory_fns;
+LBER_F (char *) ber_strndup( LDAP_CONST char *, ber_len_t );
+LBER_F (char *) ber_strndup_x( LDAP_CONST char *, ber_len_t, void *ctx );
+
+#define LBER_MALLOC(s) ber_memalloc((s))
+#define LBER_CALLOC(n,s) ber_memcalloc((n),(s))
+#define LBER_REALLOC(p,s) ber_memrealloc((p),(s))
+#define LBER_FREE(p) ber_memfree((p))
+#define LBER_VFREE(v) ber_memvfree((void**)(v))
+#define LBER_STRDUP(s) ber_strdup((s))
+#define LBER_STRNDUP(s,l) ber_strndup((s),(l))
+
+/* sockbuf.c */
+
+LBER_F( int )
+ber_int_sb_init LDAP_P(( Sockbuf *sb ));
+
+LBER_F( int )
+ber_int_sb_close LDAP_P(( Sockbuf *sb ));
+
+LBER_F( int )
+ber_int_sb_destroy LDAP_P(( Sockbuf *sb ));
+
+LBER_F( ber_slen_t )
+ber_int_sb_read LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
+
+LBER_F( ber_slen_t )
+ber_int_sb_write LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
+
+LDAP_END_DECL
+
+#endif /* _LBER_INT_H */
diff --git a/libraries/liblber/lber.pc.in b/libraries/liblber/lber.pc.in
new file mode 100644
index 0000000..772feb0
--- /dev/null
+++ b/libraries/liblber/lber.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+includedir=@includedir@
+libdir=@libdir@
+
+Name: lber (@PACKAGE@)
+Description: OpenLDAP Lightweight ASN.1 Basic Encoding Rules library
+URL: https://www.openldap.org
+Version: @VERSION@
+Cflags: -I${includedir}
+Libs: -L${libdir} -llber
+Libs.private: @LIBS@
diff --git a/libraries/liblber/liblber.vers.in b/libraries/liblber/liblber.vers.in
new file mode 100644
index 0000000..104b860
--- /dev/null
+++ b/libraries/liblber/liblber.vers.in
@@ -0,0 +1,17 @@
+HIDDEN
+{
+ local:
+ __*;
+ _rest*;
+ _save*;
+};
+
+OPENLDAP_@OPENLDAP_LIBRELEASE@
+{
+ global:
+ ber_*;
+ der_alloc*;
+ lutil_*;
+ local: *;
+};
+
diff --git a/libraries/liblber/memory.c b/libraries/liblber/memory.c
new file mode 100644
index 0000000..c508338
--- /dev/null
+++ b/libraries/liblber/memory.c
@@ -0,0 +1,825 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+
+#include "lber-int.h"
+
+#ifdef LDAP_MEMORY_TRACE
+#include <stdio.h>
+#endif
+
+#ifdef LDAP_MEMORY_DEBUG
+/*
+ * LDAP_MEMORY_DEBUG should only be enabled for the purposes of
+ * debugging memory management within OpenLDAP libraries and slapd.
+ *
+ * It should only be enabled by an experienced developer as it causes
+ * the inclusion of numerous assert()'s, many of which may be triggered
+ * by a perfectly valid program. If LDAP_MEMORY_DEBUG & 2 is true,
+ * that includes asserts known to break both slapd and current clients.
+ *
+ * The code behind this macro is subject to change as needed to
+ * support this testing.
+ */
+
+struct ber_mem_hdr {
+ ber_int_t bm_top; /* Pattern to detect buf overrun from prev buffer */
+ ber_int_t bm_length; /* Length of user allocated area */
+#ifdef LDAP_MEMORY_TRACE
+ ber_int_t bm_sequence; /* Allocation sequence number */
+#endif
+ union bmu_align_u { /* Force alignment, pattern to detect back clobber */
+ ber_len_t bmu_len_t;
+ ber_tag_t bmu_tag_t;
+ ber_int_t bmu_int_t;
+
+ size_t bmu_size_t;
+ void * bmu_voidp;
+ double bmu_double;
+ long bmu_long;
+ long (*bmu_funcp)( double );
+ unsigned char bmu_char[4];
+ } ber_align;
+#define bm_junk ber_align.bmu_len_t
+#define bm_data ber_align.bmu_char[1]
+#define bm_char ber_align.bmu_char
+};
+
+/* Pattern at top of allocated space */
+#define LBER_MEM_JUNK ((ber_int_t) 0xdeaddada)
+
+static const struct ber_mem_hdr ber_int_mem_hdr = { LBER_MEM_JUNK };
+
+/* Note sequence and ber_int_meminuse are counters, but are not
+ * thread safe. If you want to use these values for multithreaded applications,
+ * you must put mutexes around them, otherwise they will have incorrect values.
+ * When debugging, if you sort the debug output, the sequence number will
+ * put allocations/frees together. It is then a simple matter to write a script
+ * to find any allocations that don't have a buffer free function.
+ */
+long ber_int_meminuse = 0;
+#ifdef LDAP_MEMORY_TRACE
+static ber_int_t sequence = 0;
+#endif
+
+/* Pattern placed just before user data */
+static unsigned char toppattern[4] = { 0xde, 0xad, 0xba, 0xde };
+/* Pattern placed just after user data */
+static unsigned char endpattern[4] = { 0xd1, 0xed, 0xde, 0xca };
+
+#define mbu_len sizeof(ber_int_mem_hdr.ber_align)
+
+/* Test if pattern placed just before user data is good */
+#define testdatatop(val) ( \
+ *(val->bm_char+mbu_len-4)==toppattern[0] && \
+ *(val->bm_char+mbu_len-3)==toppattern[1] && \
+ *(val->bm_char+mbu_len-2)==toppattern[2] && \
+ *(val->bm_char+mbu_len-1)==toppattern[3] )
+
+/* Place pattern just before user data */
+#define setdatatop(val) *(val->bm_char+mbu_len-4)=toppattern[0]; \
+ *(val->bm_char+mbu_len-3)=toppattern[1]; \
+ *(val->bm_char+mbu_len-2)=toppattern[2]; \
+ *(val->bm_char+mbu_len-1)=toppattern[3];
+
+/* Test if pattern placed just after user data is good */
+#define testend(val) ( *((unsigned char *)val+0)==endpattern[0] && \
+ *((unsigned char *)val+1)==endpattern[1] && \
+ *((unsigned char *)val+2)==endpattern[2] && \
+ *((unsigned char *)val+3)==endpattern[3] )
+
+/* Place pattern just after user data */
+#define setend(val) *((unsigned char *)val+0)=endpattern[0]; \
+ *((unsigned char *)val+1)=endpattern[1]; \
+ *((unsigned char *)val+2)=endpattern[2]; \
+ *((unsigned char *)val+3)=endpattern[3];
+
+#define BER_MEM_BADADDR ((void *) &ber_int_mem_hdr.bm_data)
+#define BER_MEM_VALID(p) do { \
+ assert( (p) != BER_MEM_BADADDR ); \
+ assert( (p) != (void *) &ber_int_mem_hdr ); \
+ } while(0)
+
+#else
+#define BER_MEM_VALID(p) /* no-op */
+#endif
+
+BerMemoryFunctions *ber_int_memory_fns = NULL;
+
+void
+ber_memfree_x( void *p, void *ctx )
+{
+ if( p == NULL ) {
+ return;
+ }
+
+ BER_MEM_VALID( p );
+
+ if( ber_int_memory_fns == NULL || ctx == NULL ) {
+#ifdef LDAP_MEMORY_DEBUG
+ struct ber_mem_hdr *mh = (struct ber_mem_hdr *)
+ ((char *)p - sizeof(struct ber_mem_hdr));
+ assert( mh->bm_top == LBER_MEM_JUNK);
+ assert( testdatatop( mh));
+ assert( testend( (char *)&mh[1] + mh->bm_length) );
+ ber_int_meminuse -= mh->bm_length;
+
+#ifdef LDAP_MEMORY_TRACE
+ fprintf(stderr, "0x%08lx 0x%08lx -f- %ld ber_memfree %ld\n",
+ (long)mh->bm_sequence, (long)mh, (long)mh->bm_length,
+ ber_int_meminuse);
+#endif
+ /* Fill the free space with poison */
+ memset( mh, 0xff, mh->bm_length + sizeof(struct ber_mem_hdr) + sizeof(ber_int_t));
+ free( mh );
+#else
+ free( p );
+#endif
+ return;
+ }
+
+ assert( ber_int_memory_fns->bmf_free != 0 );
+
+ (*ber_int_memory_fns->bmf_free)( p, ctx );
+}
+
+void
+ber_memfree( void *p )
+{
+ ber_memfree_x(p, NULL);
+}
+
+void
+ber_memvfree_x( void **vec, void *ctx )
+{
+ int i;
+
+ if( vec == NULL ) {
+ return;
+ }
+
+ BER_MEM_VALID( vec );
+
+ for ( i = 0; vec[i] != NULL; i++ ) {
+ ber_memfree_x( vec[i], ctx );
+ }
+
+ ber_memfree_x( vec, ctx );
+}
+
+void
+ber_memvfree( void **vec )
+{
+ ber_memvfree_x( vec, NULL );
+}
+
+void *
+ber_memalloc_x( ber_len_t s, void *ctx )
+{
+ void *new;
+
+ if( s == 0 ) {
+ LDAP_MEMORY_DEBUG_ASSERT( s != 0 );
+ return NULL;
+ }
+
+ if( ber_int_memory_fns == NULL || ctx == NULL ) {
+#ifdef LDAP_MEMORY_DEBUG
+ new = malloc(s + sizeof(struct ber_mem_hdr) + sizeof( ber_int_t));
+ if( new )
+ {
+ struct ber_mem_hdr *mh = new;
+ mh->bm_top = LBER_MEM_JUNK;
+ mh->bm_length = s;
+ setdatatop( mh);
+ setend( (char *)&mh[1] + mh->bm_length );
+
+ ber_int_meminuse += mh->bm_length; /* Count mem inuse */
+
+#ifdef LDAP_MEMORY_TRACE
+ mh->bm_sequence = sequence++;
+ fprintf(stderr, "0x%08lx 0x%08lx -a- %ld ber_memalloc %ld\n",
+ (long)mh->bm_sequence, (long)mh, (long)mh->bm_length,
+ ber_int_meminuse);
+#endif
+ /* poison new memory */
+ memset( (char *)&mh[1], 0xff, s);
+
+ BER_MEM_VALID( &mh[1] );
+ new = &mh[1];
+ }
+#else
+ new = malloc( s );
+#endif
+ } else {
+ new = (*ber_int_memory_fns->bmf_malloc)( s, ctx );
+ }
+
+ if( new == NULL ) {
+ ber_errno = LBER_ERROR_MEMORY;
+ }
+
+ return new;
+}
+
+void *
+ber_memalloc( ber_len_t s )
+{
+ return ber_memalloc_x( s, NULL );
+}
+
+void *
+ber_memcalloc_x( ber_len_t n, ber_len_t s, void *ctx )
+{
+ void *new;
+
+ if( n == 0 || s == 0 ) {
+ LDAP_MEMORY_DEBUG_ASSERT( n != 0 && s != 0);
+ return NULL;
+ }
+
+ if( ber_int_memory_fns == NULL || ctx == NULL ) {
+#ifdef LDAP_MEMORY_DEBUG
+ new = n < (-sizeof(struct ber_mem_hdr) - sizeof(ber_int_t)) / s
+ ? calloc(1, n*s + sizeof(struct ber_mem_hdr) + sizeof(ber_int_t))
+ : NULL;
+ if( new )
+ {
+ struct ber_mem_hdr *mh = new;
+
+ mh->bm_top = LBER_MEM_JUNK;
+ mh->bm_length = n*s;
+ setdatatop( mh);
+ setend( (char *)&mh[1] + mh->bm_length );
+
+ ber_int_meminuse += mh->bm_length;
+
+#ifdef LDAP_MEMORY_TRACE
+ mh->bm_sequence = sequence++;
+ fprintf(stderr, "0x%08lx 0x%08lx -a- %ld ber_memcalloc %ld\n",
+ (long)mh->bm_sequence, (long)mh, (long)mh->bm_length,
+ ber_int_meminuse);
+#endif
+ BER_MEM_VALID( &mh[1] );
+ new = &mh[1];
+ }
+#else
+ new = calloc( n, s );
+#endif
+
+ } else {
+ new = (*ber_int_memory_fns->bmf_calloc)( n, s, ctx );
+ }
+
+ if( new == NULL ) {
+ ber_errno = LBER_ERROR_MEMORY;
+ }
+
+ return new;
+}
+
+void *
+ber_memcalloc( ber_len_t n, ber_len_t s )
+{
+ return ber_memcalloc_x( n, s, NULL );
+}
+
+void *
+ber_memrealloc_x( void* p, ber_len_t s, void *ctx )
+{
+ void *new = NULL;
+
+ /* realloc(NULL,s) -> malloc(s) */
+ if( p == NULL ) {
+ return ber_memalloc_x( s, ctx );
+ }
+
+ /* realloc(p,0) -> free(p) */
+ if( s == 0 ) {
+ ber_memfree_x( p, ctx );
+ return NULL;
+ }
+
+ BER_MEM_VALID( p );
+
+ if( ber_int_memory_fns == NULL || ctx == NULL ) {
+#ifdef LDAP_MEMORY_DEBUG
+ ber_int_t oldlen;
+ struct ber_mem_hdr *mh = (struct ber_mem_hdr *)
+ ((char *)p - sizeof(struct ber_mem_hdr));
+ assert( mh->bm_top == LBER_MEM_JUNK);
+ assert( testdatatop( mh));
+ assert( testend( (char *)&mh[1] + mh->bm_length) );
+ oldlen = mh->bm_length;
+
+ p = realloc( mh, s + sizeof(struct ber_mem_hdr) + sizeof(ber_int_t) );
+ if( p == NULL ) {
+ ber_errno = LBER_ERROR_MEMORY;
+ return NULL;
+ }
+
+ mh = p;
+ mh->bm_length = s;
+ setend( (char *)&mh[1] + mh->bm_length );
+ if( s > oldlen ) {
+ /* poison any new memory */
+ memset( (char *)&mh[1] + oldlen, 0xff, s - oldlen);
+ }
+
+ assert( mh->bm_top == LBER_MEM_JUNK);
+ assert( testdatatop( mh));
+
+ ber_int_meminuse += s - oldlen;
+#ifdef LDAP_MEMORY_TRACE
+ fprintf(stderr, "0x%08lx 0x%08lx -a- %ld ber_memrealloc %ld\n",
+ (long)mh->bm_sequence, (long)mh, (long)mh->bm_length,
+ ber_int_meminuse);
+#endif
+ BER_MEM_VALID( &mh[1] );
+ return &mh[1];
+#else
+ new = realloc( p, s );
+#endif
+ } else {
+ new = (*ber_int_memory_fns->bmf_realloc)( p, s, ctx );
+ }
+
+ if( new == NULL ) {
+ ber_errno = LBER_ERROR_MEMORY;
+ }
+
+ return new;
+}
+
+void *
+ber_memrealloc( void* p, ber_len_t s )
+{
+ return ber_memrealloc_x( p, s, NULL );
+}
+
+void
+ber_bvfree_x( struct berval *bv, void *ctx )
+{
+ if( bv == NULL ) {
+ return;
+ }
+
+ BER_MEM_VALID( bv );
+
+ if ( bv->bv_val != NULL ) {
+ ber_memfree_x( bv->bv_val, ctx );
+ }
+
+ ber_memfree_x( (char *) bv, ctx );
+}
+
+void
+ber_bvfree( struct berval *bv )
+{
+ ber_bvfree_x( bv, NULL );
+}
+
+void
+ber_bvecfree_x( struct berval **bv, void *ctx )
+{
+ int i;
+
+ if( bv == NULL ) {
+ return;
+ }
+
+ BER_MEM_VALID( bv );
+
+ /* count elements */
+ for ( i = 0; bv[i] != NULL; i++ ) ;
+
+ /* free in reverse order */
+ for ( i--; i >= 0; i-- ) {
+ ber_bvfree_x( bv[i], ctx );
+ }
+
+ ber_memfree_x( (char *) bv, ctx );
+}
+
+void
+ber_bvecfree( struct berval **bv )
+{
+ ber_bvecfree_x( bv, NULL );
+}
+
+int
+ber_bvecadd_x( struct berval ***bvec, struct berval *bv, void *ctx )
+{
+ ber_len_t i;
+ struct berval **new;
+
+ if( *bvec == NULL ) {
+ if( bv == NULL ) {
+ /* nothing to add */
+ return 0;
+ }
+
+ *bvec = ber_memalloc_x( 2 * sizeof(struct berval *), ctx );
+
+ if( *bvec == NULL ) {
+ return -1;
+ }
+
+ (*bvec)[0] = bv;
+ (*bvec)[1] = NULL;
+
+ return 1;
+ }
+
+ BER_MEM_VALID( bvec );
+
+ /* count entries */
+ for ( i = 0; (*bvec)[i] != NULL; i++ ) {
+ /* EMPTY */;
+ }
+
+ if( bv == NULL ) {
+ return i;
+ }
+
+ new = ber_memrealloc_x( *bvec, (i+2) * sizeof(struct berval *), ctx);
+
+ if( new == NULL ) {
+ return -1;
+ }
+
+ *bvec = new;
+
+ (*bvec)[i++] = bv;
+ (*bvec)[i] = NULL;
+
+ return i;
+}
+
+int
+ber_bvecadd( struct berval ***bvec, struct berval *bv )
+{
+ return ber_bvecadd_x( bvec, bv, NULL );
+}
+
+struct berval *
+ber_dupbv_x(
+ struct berval *dst, struct berval *src, void *ctx )
+{
+ struct berval *new, tmp;
+
+ if( src == NULL ) {
+ ber_errno = LBER_ERROR_PARAM;
+ return NULL;
+ }
+
+ if ( dst ) {
+ new = &tmp;
+ } else {
+ if(( new = ber_memalloc_x( sizeof(struct berval), ctx )) == NULL ) {
+ return NULL;
+ }
+ }
+
+ if ( src->bv_val == NULL ) {
+ new->bv_val = NULL;
+ new->bv_len = 0;
+ } else {
+
+ if(( new->bv_val = ber_memalloc_x( src->bv_len + 1, ctx )) == NULL ) {
+ if ( !dst )
+ ber_memfree_x( new, ctx );
+ return NULL;
+ }
+
+ AC_MEMCPY( new->bv_val, src->bv_val, src->bv_len );
+ new->bv_val[src->bv_len] = '\0';
+ new->bv_len = src->bv_len;
+ }
+
+ if ( dst ) {
+ *dst = *new;
+ new = dst;
+ }
+
+ return new;
+}
+
+struct berval *
+ber_dupbv(
+ struct berval *dst, struct berval *src )
+{
+ return ber_dupbv_x( dst, src, NULL );
+}
+
+struct berval *
+ber_bvdup(
+ struct berval *src )
+{
+ return ber_dupbv_x( NULL, src, NULL );
+}
+
+struct berval *
+ber_str2bv_x(
+ LDAP_CONST char *s, ber_len_t len, int dup, struct berval *bv,
+ void *ctx)
+{
+ struct berval *new;
+
+ if( s == NULL ) {
+ ber_errno = LBER_ERROR_PARAM;
+ return NULL;
+ }
+
+ if( bv ) {
+ new = bv;
+ } else {
+ if(( new = ber_memalloc_x( sizeof(struct berval), ctx )) == NULL ) {
+ return NULL;
+ }
+ }
+
+ new->bv_len = len ? len : strlen( s );
+ if ( dup ) {
+ if ( (new->bv_val = ber_memalloc_x( new->bv_len+1, ctx )) == NULL ) {
+ if ( !bv )
+ ber_memfree_x( new, ctx );
+ return NULL;
+ }
+
+ AC_MEMCPY( new->bv_val, s, new->bv_len );
+ new->bv_val[new->bv_len] = '\0';
+ } else {
+ new->bv_val = (char *) s;
+ }
+
+ return( new );
+}
+
+struct berval *
+ber_str2bv(
+ LDAP_CONST char *s, ber_len_t len, int dup, struct berval *bv)
+{
+ return ber_str2bv_x( s, len, dup, bv, NULL );
+}
+
+struct berval *
+ber_mem2bv_x(
+ LDAP_CONST char *s, ber_len_t len, int dup, struct berval *bv,
+ void *ctx)
+{
+ struct berval *new;
+
+ if( s == NULL ) {
+ ber_errno = LBER_ERROR_PARAM;
+ return NULL;
+ }
+
+ if( bv ) {
+ new = bv;
+ } else {
+ if(( new = ber_memalloc_x( sizeof(struct berval), ctx )) == NULL ) {
+ return NULL;
+ }
+ }
+
+ new->bv_len = len;
+ if ( dup ) {
+ if ( (new->bv_val = ber_memalloc_x( new->bv_len+1, ctx )) == NULL ) {
+ if ( !bv ) {
+ ber_memfree_x( new, ctx );
+ }
+ return NULL;
+ }
+
+ AC_MEMCPY( new->bv_val, s, new->bv_len );
+ new->bv_val[new->bv_len] = '\0';
+ } else {
+ new->bv_val = (char *) s;
+ }
+
+ return( new );
+}
+
+struct berval *
+ber_mem2bv(
+ LDAP_CONST char *s, ber_len_t len, int dup, struct berval *bv)
+{
+ return ber_mem2bv_x( s, len, dup, bv, NULL );
+}
+
+char *
+ber_strdup_x( LDAP_CONST char *s, void *ctx )
+{
+ char *p;
+ size_t len;
+
+#ifdef LDAP_MEMORY_DEBUG
+ assert(s != NULL); /* bv damn better point to something */
+#endif
+
+ if( s == NULL ) {
+ ber_errno = LBER_ERROR_PARAM;
+ return NULL;
+ }
+
+ len = strlen( s ) + 1;
+ if ( (p = ber_memalloc_x( len, ctx )) != NULL ) {
+ AC_MEMCPY( p, s, len );
+ }
+
+ return p;
+}
+
+char *
+ber_strdup( LDAP_CONST char *s )
+{
+ return ber_strdup_x( s, NULL );
+}
+
+ber_len_t
+ber_strnlen( LDAP_CONST char *s, ber_len_t len )
+{
+ ber_len_t l;
+
+ for ( l = 0; l < len && s[l] != '\0'; l++ ) ;
+
+ return l;
+}
+
+char *
+ber_strndup_x( LDAP_CONST char *s, ber_len_t l, void *ctx )
+{
+ char *p;
+ size_t len;
+
+#ifdef LDAP_MEMORY_DEBUG
+ assert(s != NULL); /* bv damn better point to something */
+#endif
+
+ if( s == NULL ) {
+ ber_errno = LBER_ERROR_PARAM;
+ return NULL;
+ }
+
+ len = ber_strnlen( s, l );
+ if ( (p = ber_memalloc_x( len + 1, ctx )) != NULL ) {
+ AC_MEMCPY( p, s, len );
+ p[len] = '\0';
+ }
+
+ return p;
+}
+
+char *
+ber_strndup( LDAP_CONST char *s, ber_len_t l )
+{
+ return ber_strndup_x( s, l, NULL );
+}
+
+/*
+ * dst is resized as required by src and the value of src is copied into dst
+ * dst->bv_val must be NULL (and dst->bv_len must be 0), or it must be
+ * alloc'ed with the context ctx
+ */
+struct berval *
+ber_bvreplace_x( struct berval *dst, LDAP_CONST struct berval *src, void *ctx )
+{
+ assert( dst != NULL );
+ assert( !BER_BVISNULL( src ) );
+
+ if ( BER_BVISNULL( dst ) || dst->bv_len < src->bv_len ) {
+ dst->bv_val = ber_memrealloc_x( dst->bv_val, src->bv_len + 1, ctx );
+ }
+
+ AC_MEMCPY( dst->bv_val, src->bv_val, src->bv_len + 1 );
+ dst->bv_len = src->bv_len;
+
+ return dst;
+}
+
+struct berval *
+ber_bvreplace( struct berval *dst, LDAP_CONST struct berval *src )
+{
+ return ber_bvreplace_x( dst, src, NULL );
+}
+
+void
+ber_bvarray_free_x( BerVarray a, void *ctx )
+{
+ int i;
+
+ if (a) {
+ BER_MEM_VALID( a );
+
+ /* count elements */
+ for (i=0; a[i].bv_val; i++) ;
+
+ /* free in reverse order */
+ for (i--; i>=0; i--) {
+ ber_memfree_x(a[i].bv_val, ctx);
+ }
+
+ ber_memfree_x(a, ctx);
+ }
+}
+
+void
+ber_bvarray_free( BerVarray a )
+{
+ ber_bvarray_free_x(a, NULL);
+}
+
+int
+ber_bvarray_dup_x( BerVarray *dst, BerVarray src, void *ctx )
+{
+ int i, j;
+ BerVarray new;
+
+ if ( !src ) {
+ *dst = NULL;
+ return 0;
+ }
+
+ for (i=0; !BER_BVISNULL( &src[i] ); i++) ;
+ new = ber_memalloc_x(( i+1 ) * sizeof(BerValue), ctx );
+ if ( !new )
+ return -1;
+ for (j=0; j<i; j++) {
+ ber_dupbv_x( &new[j], &src[j], ctx );
+ if ( BER_BVISNULL( &new[j] )) {
+ ber_bvarray_free_x( new, ctx );
+ return -1;
+ }
+ }
+ BER_BVZERO( &new[j] );
+ *dst = new;
+ return 0;
+}
+
+int
+ber_bvarray_add_x( BerVarray *a, BerValue *bv, void *ctx )
+{
+ int n;
+
+ if ( *a == NULL ) {
+ if (bv == NULL) {
+ return 0;
+ }
+ n = 0;
+
+ *a = (BerValue *) ber_memalloc_x( 2 * sizeof(BerValue), ctx );
+ if ( *a == NULL ) {
+ return -1;
+ }
+
+ } else {
+ BerVarray atmp;
+ BER_MEM_VALID( a );
+
+ for ( n = 0; *a != NULL && (*a)[n].bv_val != NULL; n++ ) {
+ ; /* just count them */
+ }
+
+ if (bv == NULL) {
+ return n;
+ }
+
+ atmp = (BerValue *) ber_memrealloc_x( (char *) *a,
+ (n + 2) * sizeof(BerValue), ctx );
+
+ if( atmp == NULL ) {
+ return -1;
+ }
+
+ *a = atmp;
+ }
+
+ (*a)[n++] = *bv;
+ (*a)[n].bv_val = NULL;
+ (*a)[n].bv_len = 0;
+
+ return n;
+}
+
+int
+ber_bvarray_add( BerVarray *a, BerValue *bv )
+{
+ return ber_bvarray_add_x( a, bv, NULL );
+}
diff --git a/libraries/liblber/nt_err.c b/libraries/liblber/nt_err.c
new file mode 100644
index 0000000..5425356
--- /dev/null
+++ b/libraries/liblber/nt_err.c
@@ -0,0 +1,96 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#ifdef HAVE_WINSOCK2
+#include <winsock2.h>
+#elif defined(HAVE_WINSOCK)
+#include <winsock.h>
+#endif /* HAVE_WINSOCK(2) */
+
+#define LBER_RETSTR( x ) case x: return #x;
+
+char *ber_pvt_wsa_err2string( int err )
+{
+ switch( err ) {
+ LBER_RETSTR( WSAEINTR )
+ LBER_RETSTR( WSAEBADF )
+ LBER_RETSTR( WSAEACCES )
+ LBER_RETSTR( WSAEFAULT )
+ LBER_RETSTR( WSAEINVAL )
+ LBER_RETSTR( WSAEMFILE )
+ LBER_RETSTR( WSAEWOULDBLOCK )
+ LBER_RETSTR( WSAEINPROGRESS )
+ LBER_RETSTR( WSAEALREADY )
+ LBER_RETSTR( WSAENOTSOCK )
+ LBER_RETSTR( WSAEDESTADDRREQ )
+ LBER_RETSTR( WSAEMSGSIZE )
+ LBER_RETSTR( WSAEPROTOTYPE )
+ LBER_RETSTR( WSAENOPROTOOPT )
+ LBER_RETSTR( WSAEPROTONOSUPPORT )
+ LBER_RETSTR( WSAESOCKTNOSUPPORT )
+ LBER_RETSTR( WSAEOPNOTSUPP )
+ LBER_RETSTR( WSAEPFNOSUPPORT )
+ LBER_RETSTR( WSAEAFNOSUPPORT )
+ LBER_RETSTR( WSAEADDRINUSE )
+ LBER_RETSTR( WSAEADDRNOTAVAIL )
+ LBER_RETSTR( WSAENETDOWN )
+ LBER_RETSTR( WSAENETUNREACH )
+ LBER_RETSTR( WSAENETRESET )
+ LBER_RETSTR( WSAECONNABORTED )
+ LBER_RETSTR( WSAECONNRESET )
+ LBER_RETSTR( WSAENOBUFS )
+ LBER_RETSTR( WSAEISCONN )
+ LBER_RETSTR( WSAENOTCONN )
+ LBER_RETSTR( WSAESHUTDOWN )
+ LBER_RETSTR( WSAETOOMANYREFS )
+ LBER_RETSTR( WSAETIMEDOUT )
+ LBER_RETSTR( WSAECONNREFUSED )
+ LBER_RETSTR( WSAELOOP )
+ LBER_RETSTR( WSAENAMETOOLONG )
+ LBER_RETSTR( WSAEHOSTDOWN )
+ LBER_RETSTR( WSAEHOSTUNREACH )
+ LBER_RETSTR( WSAENOTEMPTY )
+ LBER_RETSTR( WSAEPROCLIM )
+ LBER_RETSTR( WSAEUSERS )
+ LBER_RETSTR( WSAEDQUOT )
+ LBER_RETSTR( WSAESTALE )
+ LBER_RETSTR( WSAEREMOTE )
+ LBER_RETSTR( WSASYSNOTREADY )
+ LBER_RETSTR( WSAVERNOTSUPPORTED )
+ LBER_RETSTR( WSANOTINITIALISED )
+ LBER_RETSTR( WSAEDISCON )
+
+#ifdef HAVE_WINSOCK2
+ LBER_RETSTR( WSAENOMORE )
+ LBER_RETSTR( WSAECANCELLED )
+ LBER_RETSTR( WSAEINVALIDPROCTABLE )
+ LBER_RETSTR( WSAEINVALIDPROVIDER )
+ LBER_RETSTR( WSASYSCALLFAILURE )
+ LBER_RETSTR( WSASERVICE_NOT_FOUND )
+ LBER_RETSTR( WSATYPE_NOT_FOUND )
+ LBER_RETSTR( WSA_E_NO_MORE )
+ LBER_RETSTR( WSA_E_CANCELLED )
+ LBER_RETSTR( WSAEREFUSED )
+#endif /* HAVE_WINSOCK2 */
+
+ LBER_RETSTR( WSAHOST_NOT_FOUND )
+ LBER_RETSTR( WSATRY_AGAIN )
+ LBER_RETSTR( WSANO_RECOVERY )
+ LBER_RETSTR( WSANO_DATA )
+ }
+ return "unknown WSA error";
+}
diff --git a/libraries/liblber/options.c b/libraries/liblber/options.c
new file mode 100644
index 0000000..a31c8ec
--- /dev/null
+++ b/libraries/liblber/options.c
@@ -0,0 +1,237 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+#include <ac/stdarg.h>
+#include "lber-int.h"
+
+char ber_pvt_opt_on; /* used to get a non-NULL address for *_OPT_ON */
+
+struct lber_options ber_int_options = {
+ LBER_UNINITIALIZED, 0, 0 };
+
+static BerMemoryFunctions ber_int_memory_fns_datum;
+
+int
+ber_get_option(
+ void *item,
+ int option,
+ void *outvalue)
+{
+ const BerElement *ber;
+ const Sockbuf *sb;
+
+ if(outvalue == NULL) {
+ /* no place to get to */
+ ber_errno = LBER_ERROR_PARAM;
+ return LBER_OPT_ERROR;
+ }
+
+ if(item == NULL) {
+ switch ( option ) {
+ case LBER_OPT_BER_DEBUG:
+ * (int *) outvalue = ber_int_debug;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_MEMORY_INUSE:
+ /* The memory inuse is a global variable on kernel implementations.
+ * This means that memory debug is shared by all LDAP processes
+ * so for this variable to have much meaning, only one LDAP process
+ * should be running and memory inuse should be initialized to zero
+ * using the lber_set_option() function during startup.
+ * The counter is not accurate for multithreaded ldap applications.
+ */
+#ifdef LDAP_MEMORY_DEBUG
+ * (int *) outvalue = ber_int_meminuse;
+ return LBER_OPT_SUCCESS;
+#else
+ return LBER_OPT_ERROR;
+#endif
+
+ case LBER_OPT_LOG_PRINT_FILE:
+ *((FILE**)outvalue) = (FILE*)ber_pvt_err_file;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_LOG_PRINT_FN:
+ *(BER_LOG_PRINT_FN *)outvalue = ber_pvt_log_print;
+ return LBER_OPT_SUCCESS;
+ }
+
+ ber_errno = LBER_ERROR_PARAM;
+ return LBER_OPT_ERROR;
+ }
+
+ ber = item;
+ sb = item;
+
+ switch(option) {
+ case LBER_OPT_BER_OPTIONS:
+ assert( LBER_VALID( ber ) );
+ * (int *) outvalue = ber->ber_options;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_DEBUG:
+ assert( LBER_VALID( ber ) );
+ * (int *) outvalue = ber->ber_debug;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_REMAINING_BYTES:
+ assert( LBER_VALID( ber ) );
+ *((ber_len_t *) outvalue) = ber_pvt_ber_remaining(ber);
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_TOTAL_BYTES:
+ assert( LBER_VALID( ber ) );
+ *((ber_len_t *) outvalue) = ber_pvt_ber_total(ber);
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_BYTES_TO_WRITE:
+ assert( LBER_VALID( ber ) );
+ *((ber_len_t *) outvalue) = ber_pvt_ber_write(ber);
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_MEMCTX:
+ assert( LBER_VALID( ber ) );
+ *((void **) outvalue) = ber->ber_memctx;
+ return LBER_OPT_SUCCESS;
+
+ default:
+ /* bad param */
+ ber_errno = LBER_ERROR_PARAM;
+ break;
+ }
+
+ return LBER_OPT_ERROR;
+}
+
+int
+ber_set_option(
+ void *item,
+ int option,
+ LDAP_CONST void *invalue)
+{
+ BerElement *ber;
+ Sockbuf *sb;
+
+ if(invalue == NULL) {
+ /* no place to set from */
+ ber_errno = LBER_ERROR_PARAM;
+ return LBER_OPT_ERROR;
+ }
+
+ if(item == NULL) {
+ switch ( option ) {
+ case LBER_OPT_BER_DEBUG:
+ ber_int_debug = * (const int *) invalue;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_LOG_PRINT_FN:
+ ber_pvt_log_print = (BER_LOG_PRINT_FN) invalue;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_LOG_PRINT_FILE:
+ ber_pvt_err_file = (void *) invalue;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_MEMORY_INUSE:
+ /* The memory inuse is a global variable on kernel implementations.
+ * This means that memory debug is shared by all LDAP processes
+ * so for this variable to have much meaning, only one LDAP process
+ * should be running and memory inuse should be initialized to zero
+ * using the lber_set_option() function during startup.
+ * The counter is not accurate for multithreaded applications.
+ */
+#ifdef LDAP_MEMORY_DEBUG
+ ber_int_meminuse = * (int *) invalue;
+ return LBER_OPT_SUCCESS;
+#else
+ return LBER_OPT_ERROR;
+#endif
+ case LBER_OPT_MEMORY_FNS:
+ if ( ber_int_memory_fns == NULL )
+ {
+ const BerMemoryFunctions *f =
+ (const BerMemoryFunctions *) invalue;
+ /* make sure all functions are provided */
+ if(!( f->bmf_malloc && f->bmf_calloc
+ && f->bmf_realloc && f->bmf_free ))
+ {
+ ber_errno = LBER_ERROR_PARAM;
+ return LBER_OPT_ERROR;
+ }
+
+ ber_int_memory_fns = &ber_int_memory_fns_datum;
+
+ AC_MEMCPY(ber_int_memory_fns, f,
+ sizeof(BerMemoryFunctions));
+
+ return LBER_OPT_SUCCESS;
+ }
+ break;
+
+ case LBER_OPT_LOG_PROC:
+ ber_int_log_proc = (BER_LOG_FN)invalue;
+ return LBER_OPT_SUCCESS;
+ }
+
+ ber_errno = LBER_ERROR_PARAM;
+ return LBER_OPT_ERROR;
+ }
+
+ ber = item;
+ sb = item;
+
+ switch(option) {
+ case LBER_OPT_BER_OPTIONS:
+ assert( LBER_VALID( ber ) );
+ ber->ber_options = * (const int *) invalue;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_DEBUG:
+ assert( LBER_VALID( ber ) );
+ ber->ber_debug = * (const int *) invalue;
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_REMAINING_BYTES:
+ assert( LBER_VALID( ber ) );
+ ber->ber_end = &ber->ber_ptr[* (const ber_len_t *) invalue];
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_TOTAL_BYTES:
+ assert( LBER_VALID( ber ) );
+ ber->ber_end = &ber->ber_buf[* (const ber_len_t *) invalue];
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_BYTES_TO_WRITE:
+ assert( LBER_VALID( ber ) );
+ ber->ber_ptr = &ber->ber_buf[* (const ber_len_t *) invalue];
+ return LBER_OPT_SUCCESS;
+
+ case LBER_OPT_BER_MEMCTX:
+ assert( LBER_VALID( ber ) );
+ ber->ber_memctx = *(void **)invalue;
+ return LBER_OPT_SUCCESS;
+
+ default:
+ /* bad param */
+ ber_errno = LBER_ERROR_PARAM;
+ break;
+ }
+
+ return LBER_OPT_ERROR;
+}
diff --git a/libraries/liblber/sockbuf.c b/libraries/liblber/sockbuf.c
new file mode 100644
index 0000000..7bd3228
--- /dev/null
+++ b/libraries/liblber/sockbuf.c
@@ -0,0 +1,988 @@
+/* sockbuf.c - i/o routines with support for adding i/o layers. */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#include <ac/ctype.h>
+#include <ac/errno.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif /* HAVE_IO_H */
+
+#if defined( HAVE_FCNTL_H )
+#include <fcntl.h>
+#endif
+
+#if defined( HAVE_SYS_FILIO_H )
+#include <sys/filio.h>
+#elif defined( HAVE_SYS_IOCTL_H )
+#include <sys/ioctl.h>
+#endif
+
+#include "lber-int.h"
+
+#ifndef LBER_MIN_BUFF_SIZE
+#define LBER_MIN_BUFF_SIZE 4096
+#endif
+#ifndef LBER_MAX_BUFF_SIZE
+#define LBER_MAX_BUFF_SIZE (65536*256)
+#endif
+#ifndef LBER_DEFAULT_READAHEAD
+#define LBER_DEFAULT_READAHEAD 16384
+#endif
+
+Sockbuf *
+ber_sockbuf_alloc( void )
+{
+ Sockbuf *sb;
+
+ sb = LBER_CALLOC( 1, sizeof( Sockbuf ) );
+
+ if( sb == NULL ) return NULL;
+
+ ber_int_sb_init( sb );
+ return sb;
+}
+
+void
+ber_sockbuf_free( Sockbuf *sb )
+{
+ assert( sb != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ ber_int_sb_close( sb );
+ ber_int_sb_destroy( sb );
+ LBER_FREE( sb );
+}
+
+/* Return values: -1: error, 0: no operation performed or the answer is false,
+ * 1: successful operation or the answer is true
+ */
+int
+ber_sockbuf_ctrl( Sockbuf *sb, int opt, void *arg )
+{
+ Sockbuf_IO_Desc *p;
+ int ret = 0;
+
+ assert( sb != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ switch ( opt ) {
+ case LBER_SB_OPT_HAS_IO:
+ p = sb->sb_iod;
+ while ( p && p->sbiod_io != (Sockbuf_IO *)arg ) {
+ p = p->sbiod_next;
+ }
+
+ if ( p ) {
+ ret = 1;
+ }
+ break;
+
+ case LBER_SB_OPT_GET_FD:
+ if ( arg != NULL ) {
+ *((ber_socket_t *)arg) = sb->sb_fd;
+ }
+ ret = ( sb->sb_fd == AC_SOCKET_INVALID ? -1 : 1);
+ break;
+
+ case LBER_SB_OPT_SET_FD:
+ sb->sb_fd = *((ber_socket_t *)arg);
+ ret = 1;
+ break;
+
+ case LBER_SB_OPT_SET_NONBLOCK:
+ ret = ber_pvt_socket_set_nonblock( sb->sb_fd, arg != NULL)
+ ? -1 : 1;
+ break;
+
+ case LBER_SB_OPT_DRAIN: {
+ /* Drain the data source to enable possible errors (e.g.
+ * TLS) to be propagated to the upper layers
+ */
+ char buf[LBER_MIN_BUFF_SIZE];
+
+ do {
+ ret = ber_int_sb_read( sb, buf, sizeof( buf ) );
+ } while ( ret == sizeof( buf ) );
+
+ ret = 1;
+ } break;
+
+ case LBER_SB_OPT_NEEDS_READ:
+ ret = ( sb->sb_trans_needs_read ? 1 : 0 );
+ break;
+
+ case LBER_SB_OPT_NEEDS_WRITE:
+ ret = ( sb->sb_trans_needs_write ? 1 : 0 );
+ break;
+
+ case LBER_SB_OPT_GET_MAX_INCOMING:
+ if ( arg != NULL ) {
+ *((ber_len_t *)arg) = sb->sb_max_incoming;
+ }
+ ret = 1;
+ break;
+
+ case LBER_SB_OPT_SET_MAX_INCOMING:
+ sb->sb_max_incoming = *((ber_len_t *)arg);
+ ret = 1;
+ break;
+
+ case LBER_SB_OPT_UNGET_BUF:
+#ifdef LDAP_PF_LOCAL_SENDMSG
+ sb->sb_ungetlen = ((struct berval *)arg)->bv_len;
+ if ( sb->sb_ungetlen <= sizeof( sb->sb_ungetbuf )) {
+ AC_MEMCPY( sb->sb_ungetbuf, ((struct berval *)arg)->bv_val,
+ sb->sb_ungetlen );
+ ret = 1;
+ } else {
+ sb->sb_ungetlen = 0;
+ ret = -1;
+ }
+#endif
+ break;
+
+ default:
+ ret = sb->sb_iod->sbiod_io->sbi_ctrl( sb->sb_iod, opt, arg );
+ break;
+ }
+
+ return ret;
+}
+
+int
+ber_sockbuf_add_io( Sockbuf *sb, Sockbuf_IO *sbio, int layer, void *arg )
+{
+ Sockbuf_IO_Desc *d, *p, **q;
+
+ assert( sb != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ if ( sbio == NULL ) {
+ return -1;
+ }
+
+ q = &sb->sb_iod;
+ p = *q;
+ while ( p && p->sbiod_level > layer ) {
+ q = &p->sbiod_next;
+ p = *q;
+ }
+
+ d = LBER_MALLOC( sizeof( *d ) );
+ if ( d == NULL ) {
+ return -1;
+ }
+
+ d->sbiod_level = layer;
+ d->sbiod_sb = sb;
+ d->sbiod_io = sbio;
+ memset( &d->sbiod_pvt, '\0', sizeof( d->sbiod_pvt ) );
+ d->sbiod_next = p;
+ *q = d;
+
+ if ( sbio->sbi_setup != NULL && ( sbio->sbi_setup( d, arg ) < 0 ) ) {
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+ber_sockbuf_remove_io( Sockbuf *sb, Sockbuf_IO *sbio, int layer )
+{
+ Sockbuf_IO_Desc *p, **q;
+
+ assert( sb != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ if ( sb->sb_iod == NULL ) {
+ return -1;
+ }
+
+ q = &sb->sb_iod;
+ while ( *q != NULL ) {
+ p = *q;
+ if ( layer == p->sbiod_level && p->sbiod_io == sbio ) {
+ if ( p->sbiod_io->sbi_remove != NULL &&
+ p->sbiod_io->sbi_remove( p ) < 0 )
+ {
+ return -1;
+ }
+ *q = p->sbiod_next;
+ LBER_FREE( p );
+ break;
+ }
+ q = &p->sbiod_next;
+ }
+
+ return 0;
+}
+
+void
+ber_pvt_sb_buf_init( Sockbuf_Buf *buf )
+{
+ buf->buf_base = NULL;
+ buf->buf_ptr = 0;
+ buf->buf_end = 0;
+ buf->buf_size = 0;
+}
+
+void
+ber_pvt_sb_buf_destroy( Sockbuf_Buf *buf )
+{
+ assert( buf != NULL);
+
+ if (buf->buf_base) {
+ LBER_FREE( buf->buf_base );
+ }
+ ber_pvt_sb_buf_init( buf );
+}
+
+int
+ber_pvt_sb_grow_buffer( Sockbuf_Buf *buf, ber_len_t minsize )
+{
+ ber_len_t pw;
+ char *p;
+
+ assert( buf != NULL );
+
+ for ( pw = LBER_MIN_BUFF_SIZE; pw < minsize; pw <<= 1 ) {
+ if (pw > LBER_MAX_BUFF_SIZE) return -1;
+ }
+
+ if ( buf->buf_size < pw ) {
+ p = LBER_REALLOC( buf->buf_base, pw );
+ if ( p == NULL ) return -1;
+ buf->buf_base = p;
+ buf->buf_size = pw;
+ }
+ return 0;
+}
+
+ber_len_t
+ber_pvt_sb_copy_out( Sockbuf_Buf *sbb, char *buf, ber_len_t len )
+{
+ ber_len_t max;
+
+ assert( buf != NULL );
+ assert( sbb != NULL );
+#if 0
+ assert( sbb->buf_size > 0 );
+#endif
+
+ max = sbb->buf_end - sbb->buf_ptr;
+ max = ( max < len) ? max : len;
+ if ( max ) {
+ AC_MEMCPY( buf, sbb->buf_base + sbb->buf_ptr, max );
+ sbb->buf_ptr += max;
+ if ( sbb->buf_ptr >= sbb->buf_end ) {
+ sbb->buf_ptr = sbb->buf_end = 0;
+ }
+ }
+ return max;
+}
+
+ber_slen_t
+ber_pvt_sb_do_write( Sockbuf_IO_Desc *sbiod, Sockbuf_Buf *buf_out )
+{
+ ber_len_t to_go;
+ ber_slen_t ret;
+
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+ to_go = buf_out->buf_end - buf_out->buf_ptr;
+ assert( to_go > 0 );
+
+ for(;;) {
+ ret = LBER_SBIOD_WRITE_NEXT( sbiod, buf_out->buf_base +
+ buf_out->buf_ptr, to_go );
+#ifdef EINTR
+ if ((ret<0) && (errno==EINTR)) continue;
+#endif
+ break;
+ }
+
+ if ( ret <= 0 ) return ret;
+
+ buf_out->buf_ptr += ret;
+ if (buf_out->buf_ptr == buf_out->buf_end) {
+ buf_out->buf_end = buf_out->buf_ptr = 0;
+ }
+
+ return ret;
+}
+
+int
+ber_pvt_socket_set_nonblock( ber_socket_t sd, int nb )
+{
+#ifdef HAVE_FCNTL
+ int flags = fcntl( sd, F_GETFL);
+ if( nb ) {
+ flags |= O_NONBLOCK;
+ } else {
+ flags &= ~O_NONBLOCK;
+ }
+ return fcntl( sd, F_SETFL, flags );
+
+#elif defined( FIONBIO )
+ ioctl_t status = nb ? 1 : 0;
+ return ioctl( sd, FIONBIO, &status );
+#endif
+}
+
+int
+ber_int_sb_init( Sockbuf *sb )
+{
+ assert( sb != NULL);
+
+ sb->sb_valid=LBER_VALID_SOCKBUF;
+ sb->sb_options = 0;
+ sb->sb_debug = ber_int_debug;
+ sb->sb_fd = AC_SOCKET_INVALID;
+ sb->sb_iod = NULL;
+ sb->sb_trans_needs_read = 0;
+ sb->sb_trans_needs_write = 0;
+
+ assert( SOCKBUF_VALID( sb ) );
+ return 0;
+}
+
+int
+ber_int_sb_close( Sockbuf *sb )
+{
+ Sockbuf_IO_Desc *p;
+
+ assert( sb != NULL);
+
+ p = sb->sb_iod;
+ while ( p ) {
+ if ( p->sbiod_io->sbi_close && p->sbiod_io->sbi_close( p ) < 0 ) {
+ return -1;
+ }
+ p = p->sbiod_next;
+ }
+
+ sb->sb_fd = AC_SOCKET_INVALID;
+
+ return 0;
+}
+
+int
+ber_int_sb_destroy( Sockbuf *sb )
+{
+ Sockbuf_IO_Desc *p;
+
+ assert( sb != NULL);
+ assert( SOCKBUF_VALID( sb ) );
+
+ while ( sb->sb_iod ) {
+ p = sb->sb_iod->sbiod_next;
+ ber_sockbuf_remove_io( sb, sb->sb_iod->sbiod_io,
+ sb->sb_iod->sbiod_level );
+ sb->sb_iod = p;
+ }
+
+ return ber_int_sb_init( sb );
+}
+
+ber_slen_t
+ber_int_sb_read( Sockbuf *sb, void *buf, ber_len_t len )
+{
+ ber_slen_t ret;
+
+ assert( buf != NULL );
+ assert( sb != NULL);
+ assert( sb->sb_iod != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ for (;;) {
+ ret = sb->sb_iod->sbiod_io->sbi_read( sb->sb_iod, buf, len );
+
+#ifdef EINTR
+ if ( ( ret < 0 ) && ( errno == EINTR ) ) continue;
+#endif
+ break;
+ }
+
+ return ret;
+}
+
+ber_slen_t
+ber_int_sb_write( Sockbuf *sb, void *buf, ber_len_t len )
+{
+ ber_slen_t ret;
+
+ assert( buf != NULL );
+ assert( sb != NULL);
+ assert( sb->sb_iod != NULL );
+ assert( SOCKBUF_VALID( sb ) );
+
+ for (;;) {
+ ret = sb->sb_iod->sbiod_io->sbi_write( sb->sb_iod, buf, len );
+
+#ifdef EINTR
+ if ( ( ret < 0 ) && ( errno == EINTR ) ) continue;
+#endif
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * Support for TCP
+ */
+
+static ber_slen_t
+sb_stream_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ assert( sbiod != NULL);
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+#if defined(MACOS)
+/*
+ * MacTCP/OpenTransport
+ */
+ return tcpread( sbiod->sbiod_sb->sb_fd, 0, (unsigned char *)buf,
+ len, NULL );
+
+#elif defined( HAVE_PCNFS ) || \
+ defined( HAVE_WINSOCK ) || defined ( __BEOS__ )
+/*
+ * PCNFS (under DOS)
+ */
+/*
+ * Windows Socket API (under DOS/Windows 3.x)
+ */
+/*
+ * 32-bit Windows Socket API (under Windows NT or Windows 95)
+ */
+ return recv( sbiod->sbiod_sb->sb_fd, buf, len, 0 );
+
+#elif defined( HAVE_NCSA )
+/*
+ * NCSA Telnet TCP/IP stack (under DOS)
+ */
+ return nread( sbiod->sbiod_sb->sb_fd, buf, len );
+
+#else
+ return read( sbiod->sbiod_sb->sb_fd, buf, len );
+#endif
+}
+
+static ber_slen_t
+sb_stream_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ assert( sbiod != NULL);
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+#if defined(MACOS)
+/*
+ * MacTCP/OpenTransport
+ */
+#define MAX_WRITE 65535
+ return tcpwrite( sbiod->sbiod_sb->sb_fd, (unsigned char *)buf,
+ (len<MAX_WRITE) ? len : MAX_WRITE );
+
+#elif defined( HAVE_PCNFS) \
+ || defined( HAVE_WINSOCK) || defined ( __BEOS__ )
+/*
+ * PCNFS (under DOS)
+ */
+/*
+ * Windows Socket API (under DOS/Windows 3.x)
+ */
+/*
+ * 32-bit Windows Socket API (under Windows NT or Windows 95)
+ */
+ return send( sbiod->sbiod_sb->sb_fd, buf, len, 0 );
+
+#elif defined(HAVE_NCSA)
+ return netwrite( sbiod->sbiod_sb->sb_fd, buf, len );
+
+#elif defined(VMS)
+/*
+ * VMS -- each write must be 64K or smaller
+ */
+#define MAX_WRITE 65535
+ return write( sbiod->sbiod_sb->sb_fd, buf,
+ (len<MAX_WRITE) ? len : MAX_WRITE);
+#else
+ return write( sbiod->sbiod_sb->sb_fd, buf, len );
+#endif
+}
+
+static int
+sb_stream_close( Sockbuf_IO_Desc *sbiod )
+{
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+ if ( sbiod->sbiod_sb->sb_fd != AC_SOCKET_INVALID )
+ tcp_close( sbiod->sbiod_sb->sb_fd );
+ return 0;
+}
+
+/* The argument is a pointer to the socket descriptor */
+static int
+sb_stream_setup( Sockbuf_IO_Desc *sbiod, void *arg ) {
+ assert( sbiod != NULL );
+
+ if ( arg != NULL ) {
+ sbiod->sbiod_sb->sb_fd = *((int *)arg);
+ }
+ return 0;
+}
+
+static int
+sb_stream_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg ) {
+ /* This is an end IO descriptor */
+ return 0;
+}
+
+Sockbuf_IO ber_sockbuf_io_tcp = {
+ sb_stream_setup, /* sbi_setup */
+ NULL, /* sbi_remove */
+ sb_stream_ctrl, /* sbi_ctrl */
+ sb_stream_read, /* sbi_read */
+ sb_stream_write, /* sbi_write */
+ sb_stream_close /* sbi_close */
+};
+
+
+/*
+ * Support for readahead (UDP needs it)
+ */
+
+static int
+sb_rdahead_setup( Sockbuf_IO_Desc *sbiod, void *arg )
+{
+ Sockbuf_Buf *p;
+
+ assert( sbiod != NULL );
+
+ p = LBER_MALLOC( sizeof( *p ) );
+ if ( p == NULL ) return -1;
+
+ ber_pvt_sb_buf_init( p );
+
+ if ( arg == NULL ) {
+ ber_pvt_sb_grow_buffer( p, LBER_DEFAULT_READAHEAD );
+ } else {
+ ber_pvt_sb_grow_buffer( p, *((int *)arg) );
+ }
+
+ sbiod->sbiod_pvt = p;
+ return 0;
+}
+
+static int
+sb_rdahead_remove( Sockbuf_IO_Desc *sbiod )
+{
+ Sockbuf_Buf *p;
+
+ assert( sbiod != NULL );
+
+ p = (Sockbuf_Buf *)sbiod->sbiod_pvt;
+
+ if ( p->buf_ptr != p->buf_end ) return -1;
+
+ ber_pvt_sb_buf_destroy( (Sockbuf_Buf *)(sbiod->sbiod_pvt) );
+ LBER_FREE( sbiod->sbiod_pvt );
+ sbiod->sbiod_pvt = NULL;
+
+ return 0;
+}
+
+static ber_slen_t
+sb_rdahead_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ Sockbuf_Buf *p;
+ ber_slen_t bufptr = 0, ret, max;
+
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+ assert( sbiod->sbiod_next != NULL );
+
+ p = (Sockbuf_Buf *)sbiod->sbiod_pvt;
+
+ assert( p->buf_size > 0 );
+
+ /* Are there anything left in the buffer? */
+ ret = ber_pvt_sb_copy_out( p, buf, len );
+ bufptr += ret;
+ len -= ret;
+
+ if ( len == 0 ) return bufptr;
+
+ max = p->buf_size - p->buf_end;
+ ret = 0;
+ while ( max > 0 ) {
+ ret = LBER_SBIOD_READ_NEXT( sbiod, p->buf_base + p->buf_end,
+ max );
+#ifdef EINTR
+ if ( ( ret < 0 ) && ( errno == EINTR ) ) continue;
+#endif
+ break;
+ }
+
+ if ( ret < 0 ) {
+ return ( bufptr ? bufptr : ret );
+ }
+
+ p->buf_end += ret;
+ bufptr += ber_pvt_sb_copy_out( p, (char *) buf + bufptr, len );
+ return bufptr;
+}
+
+static ber_slen_t
+sb_rdahead_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ assert( sbiod != NULL );
+ assert( sbiod->sbiod_next != NULL );
+
+ return LBER_SBIOD_WRITE_NEXT( sbiod, buf, len );
+}
+
+static int
+sb_rdahead_close( Sockbuf_IO_Desc *sbiod )
+{
+ assert( sbiod != NULL );
+
+ /* Just erase the buffer */
+ ber_pvt_sb_buf_destroy((Sockbuf_Buf *)sbiod->sbiod_pvt);
+ return 0;
+}
+
+static int
+sb_rdahead_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
+{
+ Sockbuf_Buf *p;
+
+ p = (Sockbuf_Buf *)sbiod->sbiod_pvt;
+
+ if ( opt == LBER_SB_OPT_DATA_READY ) {
+ if ( p->buf_ptr != p->buf_end ) {
+ return 1;
+ }
+
+ } else if ( opt == LBER_SB_OPT_SET_READAHEAD ) {
+ if ( p->buf_size >= *((ber_len_t *)arg) ) {
+ return 0;
+ }
+ return ( ber_pvt_sb_grow_buffer( p, *((int *)arg) ) ?
+ -1 : 1 );
+ }
+
+ return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
+}
+
+Sockbuf_IO ber_sockbuf_io_readahead = {
+ sb_rdahead_setup, /* sbi_setup */
+ sb_rdahead_remove, /* sbi_remove */
+ sb_rdahead_ctrl, /* sbi_ctrl */
+ sb_rdahead_read, /* sbi_read */
+ sb_rdahead_write, /* sbi_write */
+ sb_rdahead_close /* sbi_close */
+};
+
+/*
+ * Support for simple file IO
+ */
+
+static ber_slen_t
+sb_fd_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ assert( sbiod != NULL);
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+#ifdef LDAP_PF_LOCAL_SENDMSG
+ if ( sbiod->sbiod_sb->sb_ungetlen ) {
+ ber_len_t blen = sbiod->sbiod_sb->sb_ungetlen;
+ if ( blen > len )
+ blen = len;
+ AC_MEMCPY( buf, sbiod->sbiod_sb->sb_ungetbuf, blen );
+ buf = (char *) buf + blen;
+ len -= blen;
+ sbiod->sbiod_sb->sb_ungetlen -= blen;
+ if ( sbiod->sbiod_sb->sb_ungetlen ) {
+ AC_MEMCPY( sbiod->sbiod_sb->sb_ungetbuf,
+ sbiod->sbiod_sb->sb_ungetbuf+blen,
+ sbiod->sbiod_sb->sb_ungetlen );
+ }
+ if ( len == 0 )
+ return blen;
+ }
+#endif
+ return read( sbiod->sbiod_sb->sb_fd, buf, len );
+}
+
+static ber_slen_t
+sb_fd_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ assert( sbiod != NULL);
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+ return write( sbiod->sbiod_sb->sb_fd, buf, len );
+}
+
+static int
+sb_fd_close( Sockbuf_IO_Desc *sbiod )
+{
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+ if ( sbiod->sbiod_sb->sb_fd != AC_SOCKET_INVALID )
+ close( sbiod->sbiod_sb->sb_fd );
+ return 0;
+}
+
+/* The argument is a pointer to the file descriptor */
+static int
+sb_fd_setup( Sockbuf_IO_Desc *sbiod, void *arg ) {
+ assert( sbiod != NULL );
+
+ if ( arg != NULL )
+ sbiod->sbiod_sb->sb_fd = *((int *)arg);
+ return 0;
+}
+
+static int
+sb_fd_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg ) {
+ /* This is an end IO descriptor */
+ return 0;
+}
+
+Sockbuf_IO ber_sockbuf_io_fd = {
+ sb_fd_setup, /* sbi_setup */
+ NULL, /* sbi_remove */
+ sb_fd_ctrl, /* sbi_ctrl */
+ sb_fd_read, /* sbi_read */
+ sb_fd_write, /* sbi_write */
+ sb_fd_close /* sbi_close */
+};
+
+/*
+ * Debugging layer
+ */
+
+static int
+sb_debug_setup( Sockbuf_IO_Desc *sbiod, void *arg )
+{
+ assert( sbiod != NULL );
+
+ if ( arg == NULL ) arg = "sockbuf_";
+
+ sbiod->sbiod_pvt = LBER_MALLOC( strlen( arg ) + 1 );
+ if ( sbiod->sbiod_pvt == NULL ) return -1;
+
+ strcpy( (char *)sbiod->sbiod_pvt, (char *)arg );
+ return 0;
+}
+
+static int
+sb_debug_remove( Sockbuf_IO_Desc *sbiod )
+{
+ assert( sbiod != NULL );
+ assert( sbiod->sbiod_pvt != NULL );
+
+ LBER_FREE( sbiod->sbiod_pvt );
+ sbiod->sbiod_pvt = NULL;
+ return 0;
+}
+
+static int
+sb_debug_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
+{
+ return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
+}
+
+static ber_slen_t
+sb_debug_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ ber_slen_t ret;
+ char ebuf[128];
+
+ ret = LBER_SBIOD_READ_NEXT( sbiod, buf, len );
+ if (sbiod->sbiod_sb->sb_debug & LDAP_DEBUG_PACKETS) {
+ int err = sock_errno();
+ if ( ret < 0 ) {
+ ber_log_printf( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ "%sread: want=%ld error=%s\n", (char *)sbiod->sbiod_pvt,
+ (long)len, AC_STRERROR_R( err, ebuf, sizeof ebuf ) );
+ } else {
+ ber_log_printf( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ "%sread: want=%ld, got=%ld\n", (char *)sbiod->sbiod_pvt,
+ (long)len, (long)ret );
+ ber_log_bprint( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ (const char *)buf, ret );
+ }
+ sock_errset(err);
+ }
+ return ret;
+}
+
+static ber_slen_t
+sb_debug_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ ber_slen_t ret;
+ char ebuf[128];
+
+ ret = LBER_SBIOD_WRITE_NEXT( sbiod, buf, len );
+ if (sbiod->sbiod_sb->sb_debug & LDAP_DEBUG_PACKETS) {
+ int err = sock_errno();
+ if ( ret < 0 ) {
+ ber_log_printf( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ "%swrite: want=%ld error=%s\n",
+ (char *)sbiod->sbiod_pvt, (long)len,
+ AC_STRERROR_R( err, ebuf, sizeof ebuf ) );
+ } else {
+ ber_log_printf( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ "%swrite: want=%ld, written=%ld\n",
+ (char *)sbiod->sbiod_pvt, (long)len, (long)ret );
+ ber_log_bprint( LDAP_DEBUG_PACKETS, sbiod->sbiod_sb->sb_debug,
+ (const char *)buf, ret );
+ }
+ sock_errset(err);
+ }
+
+ return ret;
+}
+
+Sockbuf_IO ber_sockbuf_io_debug = {
+ sb_debug_setup, /* sbi_setup */
+ sb_debug_remove, /* sbi_remove */
+ sb_debug_ctrl, /* sbi_ctrl */
+ sb_debug_read, /* sbi_read */
+ sb_debug_write, /* sbi_write */
+ NULL /* sbi_close */
+};
+
+#ifdef LDAP_CONNECTIONLESS
+
+/*
+ * Support for UDP (CLDAP)
+ *
+ * All I/O at this level must be atomic. For ease of use, the sb_readahead
+ * must be used above this module. All data reads and writes are prefixed
+ * with a sockaddr_storage containing the address of the remote entity. Upper levels
+ * must read and write this sockaddr_storage before doing the usual ber_printf/scanf
+ * operations on LDAP messages.
+ */
+
+static int
+sb_dgram_setup( Sockbuf_IO_Desc *sbiod, void *arg )
+{
+ assert( sbiod != NULL);
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+ if ( arg != NULL ) sbiod->sbiod_sb->sb_fd = *((int *)arg);
+ return 0;
+}
+
+static ber_slen_t
+sb_dgram_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ ber_slen_t rc;
+ ber_socklen_t addrlen;
+ struct sockaddr *src;
+
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+ assert( buf != NULL );
+
+ addrlen = sizeof( struct sockaddr_storage );
+ src = buf;
+ buf = (char *) buf + addrlen;
+ len -= addrlen;
+ rc = recvfrom( sbiod->sbiod_sb->sb_fd, buf, len, 0, src, &addrlen );
+
+ return rc > 0 ? rc+sizeof(struct sockaddr_storage) : rc;
+}
+
+static ber_slen_t
+sb_dgram_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len )
+{
+ ber_slen_t rc;
+ struct sockaddr *dst;
+ socklen_t dstsize;
+
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+ assert( buf != NULL );
+
+ dst = buf;
+ buf = (char *) buf + sizeof( struct sockaddr_storage );
+ len -= sizeof( struct sockaddr_storage );
+ dstsize = dst->sa_family == AF_INET ? sizeof( struct sockaddr_in )
+#ifdef LDAP_PF_INET6
+ : dst->sa_family == AF_INET6 ? sizeof( struct sockaddr_in6 )
+#endif
+ : sizeof( struct sockaddr_storage );
+ rc = sendto( sbiod->sbiod_sb->sb_fd, buf, len, 0, dst, dstsize );
+
+ if ( rc < 0 ) return -1;
+
+ /* fake error if write was not atomic */
+ if (rc < len) {
+# ifdef EMSGSIZE
+ errno = EMSGSIZE;
+# endif
+ return -1;
+ }
+ rc = len + sizeof(struct sockaddr_storage);
+ return rc;
+}
+
+static int
+sb_dgram_close( Sockbuf_IO_Desc *sbiod )
+{
+ assert( sbiod != NULL );
+ assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+
+ if ( sbiod->sbiod_sb->sb_fd != AC_SOCKET_INVALID )
+ tcp_close( sbiod->sbiod_sb->sb_fd );
+ return 0;
+}
+
+static int
+sb_dgram_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
+{
+ /* This is an end IO descriptor */
+ return 0;
+}
+
+Sockbuf_IO ber_sockbuf_io_udp =
+{
+ sb_dgram_setup, /* sbi_setup */
+ NULL, /* sbi_remove */
+ sb_dgram_ctrl, /* sbi_ctrl */
+ sb_dgram_read, /* sbi_read */
+ sb_dgram_write, /* sbi_write */
+ sb_dgram_close /* sbi_close */
+};
+
+#endif /* LDAP_CONNECTIONLESS */
diff --git a/libraries/liblber/stdio.c b/libraries/liblber/stdio.c
new file mode 100644
index 0000000..afca4b1
--- /dev/null
+++ b/libraries/liblber/stdio.c
@@ -0,0 +1,243 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/stdarg.h>
+#include <ac/string.h>
+#include <ac/ctype.h>
+#include <lutil.h>
+
+#if !defined(HAVE_VSNPRINTF) && !defined(HAVE_EBCDIC)
+/* Write at most n characters to the buffer in str, return the
+ * number of chars written or -1 if the buffer would have been
+ * overflowed.
+ *
+ * This is portable to any POSIX-compliant system. We use pipe()
+ * to create a valid file descriptor, and then fdopen() it to get
+ * a valid FILE pointer. The user's buffer and size are assigned
+ * to the FILE pointer using setvbuf. Then we close the read side
+ * of the pipe to invalidate the descriptor.
+ *
+ * If the write arguments all fit into size n, the write will
+ * return successfully. If the write is too large, the stdio
+ * buffer will need to be flushed to the underlying file descriptor.
+ * The flush will fail because it is attempting to write to a
+ * broken pipe, and the write will be terminated.
+ * -- hyc, 2002-07-19
+ */
+/* This emulation uses vfprintf; on OS/390 we're also emulating
+ * that function so it's more efficient just to have a separate
+ * version of vsnprintf there.
+ */
+#include <ac/signal.h>
+int ber_pvt_vsnprintf( char *str, size_t n, const char *fmt, va_list ap )
+{
+ int fds[2], res;
+ FILE *f;
+ RETSIGTYPE (*sig)();
+
+ if (pipe( fds )) return -1;
+
+ f = fdopen( fds[1], "w" );
+ if ( !f ) {
+ close( fds[1] );
+ close( fds[0] );
+ return -1;
+ }
+ setvbuf( f, str, _IOFBF, n );
+ sig = signal( SIGPIPE, SIG_IGN );
+ close( fds[0] );
+
+ res = vfprintf( f, fmt, ap );
+
+ fclose( f );
+ signal( SIGPIPE, sig );
+ if ( res > 0 && res < n ) {
+ res = vsprintf( str, fmt, ap );
+ }
+ return res;
+}
+#endif
+
+#ifndef HAVE_SNPRINTF
+int ber_pvt_snprintf( char *str, size_t n, const char *fmt, ... )
+{
+ va_list ap;
+ int res;
+
+ va_start( ap, fmt );
+ res = vsnprintf( str, n, fmt, ap );
+ va_end( ap );
+ return res;
+}
+#endif /* !HAVE_SNPRINTF */
+
+#ifdef HAVE_EBCDIC
+/* stdio replacements with ASCII/EBCDIC translation for OS/390.
+ * The OS/390 port depends on the CONVLIT compiler option being
+ * used to force character and string literals to be compiled in
+ * ISO8859-1, and the __LIBASCII cpp symbol to be defined to use the
+ * OS/390 ASCII-compatibility library. This library only supplies
+ * an ASCII version of sprintf, so other needed functions are
+ * provided here.
+ *
+ * All of the internal character manipulation is done in ASCII,
+ * but file I/O is EBCDIC, so we catch any stdio reading/writing
+ * of files here and do the translations.
+ */
+
+#undef fputs
+#undef fgets
+
+char *ber_pvt_fgets( char *s, int n, FILE *fp )
+{
+ s = (char *)fgets( s, n, fp );
+ if ( s ) __etoa( s );
+ return s;
+}
+
+int ber_pvt_fputs( const char *str, FILE *fp )
+{
+ char buf[8192];
+
+ strncpy( buf, str, sizeof(buf) );
+ __atoe( buf );
+ return fputs( buf, fp );
+}
+
+/* The __LIBASCII doesn't include a working vsprintf, so we make do
+ * using just sprintf. This is a very simplistic parser that looks for
+ * format strings and uses sprintf to process them one at a time.
+ * Literal text is just copied straight to the destination.
+ * The result is appended to the destination string. The parser
+ * recognizes field-width specifiers and the 'l' qualifier; it
+ * may need to be extended to recognize other qualifiers but so
+ * far this seems to be enough.
+ */
+int ber_pvt_vsnprintf( char *str, size_t n, const char *fmt, va_list ap )
+{
+ char *ptr, *pct, *s2, *f2, *end;
+ char fm2[64];
+ int len, rem;
+
+ ptr = (char *)fmt;
+ s2 = str;
+ fm2[0] = '%';
+ if (n) {
+ end = str + n;
+ } else {
+ end = NULL;
+ }
+
+ for (pct = strchr(ptr, '%'); pct; pct = strchr(ptr, '%')) {
+ len = pct-ptr;
+ if (end) {
+ rem = end-s2;
+ if (rem < 1) return -1;
+ if (rem < len) len = rem;
+ }
+ s2 = lutil_strncopy( s2, ptr, len );
+ /* Did we cheat the length above? If so, bail out */
+ if (len < pct-ptr) return -1;
+ for (pct++, f2 = fm2+1; isdigit(*pct);) *f2++ = *pct++;
+ if (*pct == 'l') *f2++ = *pct++;
+ if (*pct == '%') {
+ *s2++ = '%';
+ } else {
+ *f2++ = *pct;
+ *f2 = '\0';
+ if (*pct == 's') {
+ char *ss = va_arg(ap, char *);
+ /* Attempt to limit sprintf output. This
+ * may be thrown off if field widths were
+ * specified for this string.
+ *
+ * If it looks like the string is too
+ * long for the remaining buffer, bypass
+ * sprintf and just copy what fits, then
+ * quit.
+ */
+ if (end && strlen(ss) > (rem=end-s2)) {
+ strncpy(s2, ss, rem);
+ return -1;
+ } else {
+ s2 += sprintf(s2, fm2, ss);
+ }
+ } else {
+ s2 += sprintf(s2, fm2, va_arg(ap, int));
+ }
+ }
+ ptr = pct + 1;
+ }
+ if (end) {
+ rem = end-s2;
+ if (rem > 0) {
+ len = strlen(ptr);
+ s2 = lutil_strncopy( s2, ptr, rem );
+ rem -= len;
+ }
+ if (rem < 0) return -1;
+ } else {
+ s2 = lutil_strcopy( s2, ptr );
+ }
+ return s2 - str;
+}
+
+int ber_pvt_vsprintf( char *str, const char *fmt, va_list ap )
+{
+ return vsnprintf( str, 0, fmt, ap );
+}
+
+/* The fixed buffer size here is a problem, we don't know how
+ * to flush the buffer and keep printing if the msg is too big.
+ * Hopefully we never try to write something bigger than this
+ * in a log msg...
+ */
+int ber_pvt_vfprintf( FILE *fp, const char *fmt, va_list ap )
+{
+ char buf[8192];
+ int res;
+
+ vsnprintf( buf, sizeof(buf), fmt, ap );
+ __atoe( buf );
+ res = fputs( buf, fp );
+ if (res == EOF) res = -1;
+ return res;
+}
+
+int ber_pvt_printf( const char *fmt, ... )
+{
+ va_list ap;
+ int res;
+
+ va_start( ap, fmt );
+ res = ber_pvt_vfprintf( stdout, fmt, ap );
+ va_end( ap );
+ return res;
+}
+
+int ber_pvt_fprintf( FILE *fp, const char *fmt, ... )
+{
+ va_list ap;
+ int res;
+
+ va_start( ap, fmt );
+ res = ber_pvt_vfprintf( fp, fmt, ap );
+ va_end( ap );
+ return res;
+}
+#endif