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-rw-r--r--libraries/libldap/ldif.c944
1 files changed, 944 insertions, 0 deletions
diff --git a/libraries/libldap/ldif.c b/libraries/libldap/ldif.c
new file mode 100644
index 0000000..ba36c22
--- /dev/null
+++ b/libraries/libldap/ldif.c
@@ -0,0 +1,944 @@
+/* ldif.c - routines for dealing with LDIF files */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2018 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) 1992-1996 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.
+ */
+/* This work was originally developed by the University of Michigan
+ * and distributed as part of U-MICH LDAP.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/ctype.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+#include <ac/time.h>
+
+int ldif_debug = 0;
+
+#include "ldap_log.h"
+#include "lber_pvt.h"
+#include "ldif.h"
+
+#define RIGHT2 0x03
+#define RIGHT4 0x0f
+#define CONTINUED_LINE_MARKER '\r'
+
+#ifdef CSRIMALLOC
+#define ber_memalloc malloc
+#define ber_memcalloc calloc
+#define ber_memrealloc realloc
+#define ber_strdup strdup
+#endif
+
+static const char nib2b64[0x40] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+static const unsigned char b642nib[0x80] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0x3e, 0xff, 0xff, 0xff, 0x3f,
+ 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
+ 0x3c, 0x3d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+ 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
+ 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
+ 0x17, 0x18, 0x19, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
+ 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+ 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+ 0x31, 0x32, 0x33, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+
+/*
+ * ldif_parse_line - takes a line of the form "type:[:] value" and splits it
+ * into components "type" and "value". if a double colon separates type from
+ * value, then value is encoded in base 64, and parse_line un-decodes it
+ * (in place) before returning. The type and value are stored in malloc'd
+ * memory which must be freed by the caller.
+ *
+ * ldif_parse_line2 - operates in-place on input buffer, returning type
+ * in-place. Will return value in-place if possible, (must malloc for
+ * fetched URLs). If freeval is NULL, all return data will be malloc'd
+ * and the input line will be unmodified. Otherwise freeval is set to
+ * True if the value was malloc'd.
+ */
+
+int
+ldif_parse_line(
+ LDAP_CONST char *line,
+ char **typep,
+ char **valuep,
+ ber_len_t *vlenp
+)
+{
+ struct berval type, value;
+ int rc = ldif_parse_line2( (char *)line, &type, &value, NULL );
+
+ *typep = type.bv_val;
+ *valuep = value.bv_val;
+ *vlenp = value.bv_len;
+ return rc;
+}
+
+int
+ldif_parse_line2(
+ char *line,
+ struct berval *type,
+ struct berval *value,
+ int *freeval
+)
+{
+ char *s, *p, *d;
+ char nib;
+ int b64, url;
+
+ BER_BVZERO( type );
+ BER_BVZERO( value );
+
+ /* skip any leading space */
+ while ( isspace( (unsigned char) *line ) ) {
+ line++;
+ }
+
+ if ( freeval ) {
+ *freeval = 0;
+ } else {
+ line = ber_strdup( line );
+
+ if( line == NULL ) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_parse_line: line malloc failed\n"));
+ return( -1 );
+ }
+ }
+
+ type->bv_val = line;
+
+ s = strchr( type->bv_val, ':' );
+
+ if ( s == NULL ) {
+ ber_pvt_log_printf( LDAP_DEBUG_PARSE, ldif_debug,
+ _("ldif_parse_line: missing ':' after %s\n"),
+ type->bv_val );
+ if ( !freeval ) ber_memfree( line );
+ return( -1 );
+ }
+
+ /* trim any space between type and : */
+ for ( p = &s[-1]; p > type->bv_val && isspace( * (unsigned char *) p ); p-- ) {
+ *p = '\0';
+ }
+ *s++ = '\0';
+ type->bv_len = s - type->bv_val - 1;
+
+ url = 0;
+ b64 = 0;
+
+ if ( *s == '<' ) {
+ s++;
+ url = 1;
+
+ } else if ( *s == ':' ) {
+ /* base 64 encoded value */
+ s++;
+ b64 = 1;
+ }
+
+ /* skip space between : and value */
+ while ( isspace( (unsigned char) *s ) ) {
+ s++;
+ }
+
+ /* check for continued line markers that should be deleted */
+ for ( p = s, d = s; *p; p++ ) {
+ if ( *p != CONTINUED_LINE_MARKER )
+ *d++ = *p;
+ }
+ *d = '\0';
+
+ if ( b64 ) {
+ char *byte = s;
+
+ if ( *s == '\0' ) {
+ /* no value is present, error out */
+ ber_pvt_log_printf( LDAP_DEBUG_PARSE, ldif_debug,
+ _("ldif_parse_line: %s missing base64 value\n"),
+ type->bv_val );
+ if ( !freeval ) ber_memfree( line );
+ return( -1 );
+ }
+
+ byte = value->bv_val = s;
+
+ for ( p = s, value->bv_len = 0; p < d; p += 4, value->bv_len += 3 ) {
+ int i;
+ for ( i = 0; i < 4; i++ ) {
+ if ( p[i] != '=' && (p[i] & 0x80 ||
+ b642nib[ p[i] & 0x7f ] > 0x3f) ) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_parse_line: %s: invalid base64 encoding"
+ " char (%c) 0x%x\n"),
+ type->bv_val, p[i], p[i] );
+ if ( !freeval ) ber_memfree( line );
+ return( -1 );
+ }
+ }
+
+ /* first digit */
+ nib = b642nib[ p[0] & 0x7f ];
+ byte[0] = nib << 2;
+ /* second digit */
+ nib = b642nib[ p[1] & 0x7f ];
+ byte[0] |= nib >> 4;
+ byte[1] = (nib & RIGHT4) << 4;
+ /* third digit */
+ if ( p[2] == '=' ) {
+ value->bv_len += 1;
+ break;
+ }
+ nib = b642nib[ p[2] & 0x7f ];
+ byte[1] |= nib >> 2;
+ byte[2] = (nib & RIGHT2) << 6;
+ /* fourth digit */
+ if ( p[3] == '=' ) {
+ value->bv_len += 2;
+ break;
+ }
+ nib = b642nib[ p[3] & 0x7f ];
+ byte[2] |= nib;
+
+ byte += 3;
+ }
+ s[ value->bv_len ] = '\0';
+
+ } else if ( url ) {
+ if ( *s == '\0' ) {
+ /* no value is present, error out */
+ ber_pvt_log_printf( LDAP_DEBUG_PARSE, ldif_debug,
+ _("ldif_parse_line: %s missing URL value\n"),
+ type->bv_val );
+ if ( !freeval ) ber_memfree( line );
+ return( -1 );
+ }
+
+ if( ldif_fetch_url( s, &value->bv_val, &value->bv_len ) ) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_parse_line: %s: URL \"%s\" fetch failed\n"),
+ type->bv_val, s );
+ if ( !freeval ) ber_memfree( line );
+ return( -1 );
+ }
+ if ( freeval ) *freeval = 1;
+
+ } else {
+ value->bv_val = s;
+ value->bv_len = (int) (d - s);
+ }
+
+ if ( !freeval ) {
+ struct berval bv = *type;
+
+ ber_dupbv( type, &bv );
+
+ if( BER_BVISNULL( type )) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_parse_line: type malloc failed\n"));
+ if( url ) ber_memfree( value->bv_val );
+ ber_memfree( line );
+ return( -1 );
+ }
+
+ if( !url ) {
+ bv = *value;
+ ber_dupbv( value, &bv );
+ if( BER_BVISNULL( value )) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_parse_line: value malloc failed\n"));
+ ber_memfree( type->bv_val );
+ ber_memfree( line );
+ return( -1 );
+ }
+ }
+
+ ber_memfree( line );
+ }
+
+ return( 0 );
+}
+
+/*
+ * ldif_getline - return the next "line" (minus newline) of input from a
+ * string buffer of lines separated by newlines, terminated by \n\n
+ * or \0. this routine handles continued lines, bundling them into
+ * a single big line before returning. if a line begins with a white
+ * space character, it is a continuation of the previous line. the white
+ * space character (nb: only one char), and preceeding newline are changed
+ * into CONTINUED_LINE_MARKER chars, to be deleted later by the
+ * ldif_parse_line() routine above.
+ *
+ * ldif_getline will skip over any line which starts '#'.
+ *
+ * ldif_getline takes a pointer to a pointer to the buffer on the first call,
+ * which it updates and must be supplied on subsequent calls.
+ */
+
+int
+ldif_countlines( LDAP_CONST char *buf )
+{
+ char *nl;
+ int ret = 0;
+
+ if ( !buf ) return ret;
+
+ for ( nl = strchr(buf, '\n'); nl; nl = strchr(nl, '\n') ) {
+ nl++;
+ if ( *nl != ' ' ) ret++;
+ }
+ return ret;
+}
+
+char *
+ldif_getline( char **next )
+{
+ char *line;
+
+ do {
+ if ( *next == NULL || **next == '\n' || **next == '\0' ) {
+ return( NULL );
+ }
+
+ line = *next;
+
+ while ( (*next = strchr( *next, '\n' )) != NULL ) {
+#if CONTINUED_LINE_MARKER != '\r'
+ if ( (*next)[-1] == '\r' ) {
+ (*next)[-1] = CONTINUED_LINE_MARKER;
+ }
+#endif
+
+ if ( (*next)[1] != ' ' ) {
+ if ( (*next)[1] == '\r' && (*next)[2] == '\n' ) {
+ *(*next)++ = '\0';
+ }
+ *(*next)++ = '\0';
+ break;
+ }
+
+ **next = CONTINUED_LINE_MARKER;
+ (*next)[1] = CONTINUED_LINE_MARKER;
+ (*next)++;
+ }
+ } while( *line == '#' );
+
+ return( line );
+}
+
+/*
+ * name and OID of attributeTypes that must be base64 encoded in any case
+ */
+typedef struct must_b64_encode_s {
+ struct berval name;
+ struct berval oid;
+} must_b64_encode_s;
+
+static must_b64_encode_s default_must_b64_encode[] = {
+ { BER_BVC( "userPassword" ), BER_BVC( "2.5.4.35" ) },
+ { BER_BVNULL, BER_BVNULL }
+};
+
+static must_b64_encode_s *must_b64_encode = default_must_b64_encode;
+
+/*
+ * register name and OID of attributeTypes that must always be base64
+ * encoded
+ *
+ * NOTE: this routine mallocs memory in a static struct which must
+ * be explicitly freed when no longer required
+ */
+int
+ldif_must_b64_encode_register( LDAP_CONST char *name, LDAP_CONST char *oid )
+{
+ int i;
+ ber_len_t len;
+
+ assert( must_b64_encode != NULL );
+ assert( name != NULL );
+ assert( oid != NULL );
+
+ len = strlen( name );
+
+ for ( i = 0; !BER_BVISNULL( &must_b64_encode[i].name ); i++ ) {
+ if ( len != must_b64_encode[i].name.bv_len ) {
+ continue;
+ }
+
+ if ( strcasecmp( name, must_b64_encode[i].name.bv_val ) == 0 ) {
+ break;
+ }
+ }
+
+ if ( !BER_BVISNULL( &must_b64_encode[i].name ) ) {
+ return 1;
+ }
+
+ for ( i = 0; !BER_BVISNULL( &must_b64_encode[i].name ); i++ )
+ /* just count */ ;
+
+ if ( must_b64_encode == default_must_b64_encode ) {
+ must_b64_encode = ber_memalloc( sizeof( must_b64_encode_s ) * ( i + 2 ) );
+
+ for ( i = 0; !BER_BVISNULL( &default_must_b64_encode[i].name ); i++ ) {
+ ber_dupbv( &must_b64_encode[i].name, &default_must_b64_encode[i].name );
+ ber_dupbv( &must_b64_encode[i].oid, &default_must_b64_encode[i].oid );
+ }
+
+ } else {
+ must_b64_encode_s *tmp;
+
+ tmp = ber_memrealloc( must_b64_encode,
+ sizeof( must_b64_encode_s ) * ( i + 2 ) );
+ if ( tmp == NULL ) {
+ return 1;
+ }
+ must_b64_encode = tmp;
+ }
+
+ ber_str2bv( name, len, 1, &must_b64_encode[i].name );
+ ber_str2bv( oid, 0, 1, &must_b64_encode[i].oid );
+
+ BER_BVZERO( &must_b64_encode[i + 1].name );
+
+ return 0;
+}
+
+void
+ldif_must_b64_encode_release( void )
+{
+ int i;
+
+ assert( must_b64_encode != NULL );
+
+ if ( must_b64_encode == default_must_b64_encode ) {
+ return;
+ }
+
+ for ( i = 0; !BER_BVISNULL( &must_b64_encode[i].name ); i++ ) {
+ ber_memfree( must_b64_encode[i].name.bv_val );
+ ber_memfree( must_b64_encode[i].oid.bv_val );
+ }
+
+ ber_memfree( must_b64_encode );
+
+ must_b64_encode = default_must_b64_encode;
+}
+
+/*
+ * returns 1 iff the string corresponds to the name or the OID of any
+ * of the attributeTypes listed in must_b64_encode
+ */
+static int
+ldif_must_b64_encode( LDAP_CONST char *s )
+{
+ int i;
+ struct berval bv;
+
+ assert( must_b64_encode != NULL );
+ assert( s != NULL );
+
+ ber_str2bv( s, 0, 0, &bv );
+
+ for ( i = 0; !BER_BVISNULL( &must_b64_encode[i].name ); i++ ) {
+ if ( ber_bvstrcasecmp( &must_b64_encode[i].name, &bv ) == 0
+ || ber_bvcmp( &must_b64_encode[i].oid, &bv ) == 0 )
+ {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+/* compatibility with U-Mich off by two bug */
+#define LDIF_KLUDGE 2
+
+/* NOTE: only preserved for binary compatibility */
+void
+ldif_sput(
+ char **out,
+ int type,
+ LDAP_CONST char *name,
+ LDAP_CONST char *val,
+ ber_len_t vlen )
+{
+ ldif_sput_wrap( out, type, name, val, vlen, LDIF_LINE_WIDTH+LDIF_KLUDGE );
+}
+
+void
+ldif_sput_wrap(
+ char **out,
+ int type,
+ LDAP_CONST char *name,
+ LDAP_CONST char *val,
+ ber_len_t vlen,
+ ber_len_t wrap )
+{
+ const unsigned char *byte, *stop;
+ unsigned char buf[3];
+ unsigned long bits;
+ char *save;
+ int pad;
+ int namelen = 0;
+
+ ber_len_t savelen;
+ ber_len_t len=0;
+ ber_len_t i;
+
+ if ( !wrap )
+ wrap = LDIF_LINE_WIDTH+LDIF_KLUDGE;
+
+ /* prefix */
+ switch( type ) {
+ case LDIF_PUT_COMMENT:
+ *(*out)++ = '#';
+ len++;
+
+ if( vlen ) {
+ *(*out)++ = ' ';
+ len++;
+ }
+
+ break;
+
+ case LDIF_PUT_SEP:
+ *(*out)++ = '\n';
+ return;
+ }
+
+ /* name (attribute type) */
+ if( name != NULL ) {
+ /* put the name + ":" */
+ namelen = strlen(name);
+ strcpy(*out, name);
+ *out += namelen;
+ len += namelen;
+
+ if( type != LDIF_PUT_COMMENT ) {
+ *(*out)++ = ':';
+ len++;
+ }
+
+ }
+#ifdef LDAP_DEBUG
+ else {
+ assert( type == LDIF_PUT_COMMENT );
+ }
+#endif
+
+ if( vlen == 0 ) {
+ *(*out)++ = '\n';
+ return;
+ }
+
+ switch( type ) {
+ case LDIF_PUT_NOVALUE:
+ *(*out)++ = '\n';
+ return;
+
+ case LDIF_PUT_URL: /* url value */
+ *(*out)++ = '<';
+ len++;
+ break;
+
+ case LDIF_PUT_B64: /* base64 value */
+ *(*out)++ = ':';
+ len++;
+ break;
+ }
+
+ switch( type ) {
+ case LDIF_PUT_TEXT:
+ case LDIF_PUT_URL:
+ case LDIF_PUT_B64:
+ *(*out)++ = ' ';
+ len++;
+ /* fall-thru */
+
+ case LDIF_PUT_COMMENT:
+ /* pre-encoded names */
+ for ( i=0; i < vlen; i++ ) {
+ if ( len > wrap ) {
+ *(*out)++ = '\n';
+ *(*out)++ = ' ';
+ len = 1;
+ }
+
+ *(*out)++ = val[i];
+ len++;
+ }
+ *(*out)++ = '\n';
+ return;
+ }
+
+ save = *out;
+ savelen = len;
+
+ *(*out)++ = ' ';
+ len++;
+
+ stop = (const unsigned char *) (val + vlen);
+
+ if ( type == LDIF_PUT_VALUE
+ && isgraph( (unsigned char) val[0] ) && val[0] != ':' && val[0] != '<'
+ && isgraph( (unsigned char) val[vlen-1] )
+#ifndef LDAP_BINARY_DEBUG
+ && strstr( name, ";binary" ) == NULL
+#endif
+#ifndef LDAP_PASSWD_DEBUG
+ && !ldif_must_b64_encode( name )
+#endif
+ ) {
+ int b64 = 0;
+
+ for ( byte = (const unsigned char *) val; byte < stop;
+ byte++, len++ )
+ {
+ if ( !isascii( *byte ) || !isprint( *byte ) ) {
+ b64 = 1;
+ break;
+ }
+ if ( len >= wrap ) {
+ *(*out)++ = '\n';
+ *(*out)++ = ' ';
+ len = 1;
+ }
+ *(*out)++ = *byte;
+ }
+
+ if( !b64 ) {
+ *(*out)++ = '\n';
+ return;
+ }
+ }
+
+ *out = save;
+ *(*out)++ = ':';
+ *(*out)++ = ' ';
+ len = savelen + 2;
+
+ /* convert to base 64 (3 bytes => 4 base 64 digits) */
+ for ( byte = (const unsigned char *) val;
+ byte < stop - 2;
+ byte += 3 )
+ {
+ bits = (byte[0] & 0xff) << 16;
+ bits |= (byte[1] & 0xff) << 8;
+ bits |= (byte[2] & 0xff);
+
+ for ( i = 0; i < 4; i++, len++, bits <<= 6 ) {
+ if ( len >= wrap ) {
+ *(*out)++ = '\n';
+ *(*out)++ = ' ';
+ len = 1;
+ }
+
+ /* get b64 digit from high order 6 bits */
+ *(*out)++ = nib2b64[ (bits & 0xfc0000L) >> 18 ];
+ }
+ }
+
+ /* add padding if necessary */
+ if ( byte < stop ) {
+ for ( i = 0; byte + i < stop; i++ ) {
+ buf[i] = byte[i];
+ }
+ for ( pad = 0; i < 3; i++, pad++ ) {
+ buf[i] = '\0';
+ }
+ byte = buf;
+ bits = (byte[0] & 0xff) << 16;
+ bits |= (byte[1] & 0xff) << 8;
+ bits |= (byte[2] & 0xff);
+
+ for ( i = 0; i < 4; i++, len++, bits <<= 6 ) {
+ if ( len >= wrap ) {
+ *(*out)++ = '\n';
+ *(*out)++ = ' ';
+ len = 1;
+ }
+
+ if( i + pad < 4 ) {
+ /* get b64 digit from low order 6 bits */
+ *(*out)++ = nib2b64[ (bits & 0xfc0000L) >> 18 ];
+ } else {
+ *(*out)++ = '=';
+ }
+ }
+ }
+ *(*out)++ = '\n';
+}
+
+
+/*
+ * ldif_type_and_value return BER malloc'd, zero-terminated LDIF line
+ */
+
+/* NOTE: only preserved for binary compatibility */
+char *
+ldif_put(
+ int type,
+ LDAP_CONST char *name,
+ LDAP_CONST char *val,
+ ber_len_t vlen )
+{
+ return ldif_put_wrap( type, name, val, vlen, LDIF_LINE_WIDTH );
+}
+
+char *
+ldif_put_wrap(
+ int type,
+ LDAP_CONST char *name,
+ LDAP_CONST char *val,
+ ber_len_t vlen,
+ ber_len_t wrap )
+{
+ char *buf, *p;
+ ber_len_t nlen;
+
+ nlen = ( name != NULL ) ? strlen( name ) : 0;
+
+ buf = (char *) ber_memalloc( LDIF_SIZE_NEEDED_WRAP( nlen, vlen, wrap ) + 1 );
+
+ if ( buf == NULL ) {
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_type_and_value: malloc failed!"));
+ return NULL;
+ }
+
+ p = buf;
+ ldif_sput_wrap( &p, type, name, val, vlen, wrap );
+ *p = '\0';
+
+ return( buf );
+}
+
+int ldif_is_not_printable(
+ LDAP_CONST char *val,
+ ber_len_t vlen )
+{
+ if( vlen == 0 || val == NULL ) {
+ return -1;
+ }
+
+ if( isgraph( (unsigned char) val[0] ) && val[0] != ':' && val[0] != '<' &&
+ isgraph( (unsigned char) val[vlen-1] ) )
+ {
+ ber_len_t i;
+
+ for ( i = 0; val[i]; i++ ) {
+ if ( !isascii( val[i] ) || !isprint( (unsigned char) val[i] ) ) {
+ return 1;
+ }
+ }
+
+ return 0;
+ }
+
+ return 1;
+}
+
+LDIFFP *
+ldif_open(
+ LDAP_CONST char *file,
+ LDAP_CONST char *mode
+)
+{
+ FILE *fp = fopen( file, mode );
+ LDIFFP *lfp = NULL;
+
+ if ( fp ) {
+ lfp = ber_memalloc( sizeof( LDIFFP ));
+ lfp->fp = fp;
+ lfp->prev = NULL;
+ }
+ return lfp;
+}
+
+void
+ldif_close(
+ LDIFFP *lfp
+)
+{
+ LDIFFP *prev;
+
+ while ( lfp ) {
+ fclose( lfp->fp );
+ prev = lfp->prev;
+ ber_memfree( lfp );
+ lfp = prev;
+ }
+}
+
+#define LDIF_MAXLINE 4096
+
+/*
+ * ldif_read_record - read an ldif record. Return 1 for success, 0 for EOF,
+ * -1 for error.
+ */
+int
+ldif_read_record(
+ LDIFFP *lfp,
+ unsigned long *lno, /* ptr to line number counter */
+ char **bufp, /* ptr to malloced output buffer */
+ int *buflenp ) /* ptr to length of *bufp */
+{
+ char line[LDIF_MAXLINE], *nbufp;
+ ber_len_t lcur = 0, len;
+ int last_ch = '\n', found_entry = 0, stop, top_comment = 0;
+
+ for ( stop = 0; !stop; last_ch = line[len-1] ) {
+ /* If we're at the end of this file, see if we should pop
+ * back to a previous file. (return from an include)
+ */
+ while ( feof( lfp->fp )) {
+ if ( lfp->prev ) {
+ LDIFFP *tmp = lfp->prev;
+ fclose( lfp->fp );
+ *lfp = *tmp;
+ ber_memfree( tmp );
+ } else {
+ stop = 1;
+ break;
+ }
+ }
+ if ( !stop ) {
+ if ( fgets( line, sizeof( line ), lfp->fp ) == NULL ) {
+ stop = 1;
+ len = 0;
+ } else {
+ len = strlen( line );
+ }
+ }
+
+ if ( stop ) {
+ /* Add \n in case the file does not end with newline */
+ if (last_ch != '\n') {
+ len = 1;
+ line[0] = '\n';
+ line[1] = '\0';
+ goto last;
+ }
+ break;
+ }
+
+ /* Squash \r\n to \n */
+ if ( len > 1 && line[len-2] == '\r' ) {
+ len--;
+ line[len-1] = '\n';
+ }
+
+ if ( last_ch == '\n' ) {
+ (*lno)++;
+
+ if ( line[0] == '\n' ) {
+ if ( !found_entry ) {
+ lcur = 0;
+ top_comment = 0;
+ continue;
+ }
+ break;
+ }
+
+ if ( !found_entry ) {
+ if ( line[0] == '#' ) {
+ top_comment = 1;
+ } else if ( ! ( top_comment && line[0] == ' ' ) ) {
+ /* Found a new entry */
+ found_entry = 1;
+
+ if ( isdigit( (unsigned char) line[0] ) ) {
+ /* skip index */
+ continue;
+ }
+ if ( !strncasecmp( line, "include:",
+ STRLENOF("include:"))) {
+ FILE *fp2;
+ char *ptr;
+ found_entry = 0;
+
+ if ( line[len-1] == '\n' ) {
+ len--;
+ line[len] = '\0';
+ }
+
+ ptr = line + STRLENOF("include:");
+ while (isspace((unsigned char) *ptr)) ptr++;
+ fp2 = ldif_open_url( ptr );
+ if ( fp2 ) {
+ LDIFFP *lnew = ber_memalloc( sizeof( LDIFFP ));
+ if ( lnew == NULL ) {
+ fclose( fp2 );
+ return 0;
+ }
+ lnew->prev = lfp->prev;
+ lnew->fp = lfp->fp;
+ lfp->prev = lnew;
+ lfp->fp = fp2;
+ line[len] = '\n';
+ len++;
+ continue;
+ } else {
+ /* We failed to open the file, this should
+ * be reported as an error somehow.
+ */
+ ber_pvt_log_printf( LDAP_DEBUG_ANY, ldif_debug,
+ _("ldif_read_record: include %s failed\n"), ptr );
+ return -1;
+ }
+ }
+ }
+ }
+ }
+
+last:
+ if ( *buflenp - lcur <= len ) {
+ *buflenp += len + LDIF_MAXLINE;
+ nbufp = ber_memrealloc( *bufp, *buflenp );
+ if( nbufp == NULL ) {
+ return 0;
+ }
+ *bufp = nbufp;
+ }
+ strcpy( *bufp + lcur, line );
+ lcur += len;
+ }
+
+ return( found_entry );
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 09:13:40 +0000