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-rw-r--r--servers/slapd/shell-backends/shellutil.c396
1 files changed, 396 insertions, 0 deletions
diff --git a/servers/slapd/shell-backends/shellutil.c b/servers/slapd/shell-backends/shellutil.c
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+++ b/servers/slapd/shell-backends/shellutil.c
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+/* shellutil.c - common routines useful when building shell-based backends */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 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) 1995 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 <pwd.h>
+
+#include <ac/ctype.h>
+#include <ac/string.h>
+
+#include <lber.h>
+#include <ldap.h>
+#include "shellutil.h"
+
+
+int debugflg;
+char *progname;
+
+static struct inputparams ips[] = {
+ IP_TYPE_SUFFIX, "suffix",
+ IP_TYPE_BASE, "base",
+ IP_TYPE_SCOPE, "scope",
+ IP_TYPE_ALIASDEREF, "deref",
+ IP_TYPE_SIZELIMIT, "sizelimit",
+ IP_TYPE_TIMELIMIT, "timelimit",
+ IP_TYPE_FILTER, "filter",
+ IP_TYPE_ATTRS, "attrs",
+ IP_TYPE_ATTRSONLY, "attrsonly",
+ 0, NULL
+};
+
+
+void
+write_result( FILE *fp, int code, char *matched, char *info )
+{
+ fprintf( fp, "RESULT\ncode: %d\n", code );
+ debug_printf( ">> RESULT\n" );
+ debug_printf( ">> code: %d\n", code );
+
+ if ( matched != NULL ) {
+ fprintf( fp, "matched: %s\n", matched );
+ debug_printf( ">> matched: %s\n", matched );
+ }
+
+ if ( info != NULL ) {
+ fprintf( fp, "info: %s\n", info );
+ debug_printf( ">> info: %s\n", info );
+ }
+}
+
+
+void
+write_entry( struct ldop *op, struct ldentry *entry, FILE *ofp )
+{
+ struct ldattr **app;
+ char **valp;
+
+ fprintf( ofp, "dn: %s\n", entry->lde_dn );
+ for ( app = entry->lde_attrs; *app != NULL; ++app ) {
+ if ( attr_requested( (*app)->lda_name, op )) {
+ for ( valp = (*app)->lda_values; *valp != NULL; ++valp ) {
+ fprintf( ofp, "%s: %s\n", (*app)->lda_name, *valp );
+ }
+ }
+ }
+ fputc( '\n', ofp );
+}
+
+
+int
+test_filter( struct ldop *op, struct ldentry *entry )
+{
+ return ((random() & 0x07 ) == 0x07) /* XXX random for now */
+ ? LDAP_COMPARE_TRUE : LDAP_COMPARE_FALSE;
+}
+
+
+int
+attr_requested( char *name, struct ldop *op )
+{
+ char **ap;
+
+ if ( op->ldop_srch.ldsp_attrs == NULL ) { /* special case */
+ return( 1 );
+ }
+
+ for ( ap = op->ldop_srch.ldsp_attrs; *ap != NULL; ++ap ) {
+ if ( strcasecmp( name, *ap ) == 0 ) {
+ return( 1 );
+ }
+ }
+
+ return( 0 );
+}
+
+
+void
+free_entry( struct ldentry *entry )
+{
+ struct ldattr **app;
+ char **valp;
+
+ free( entry->lde_dn );
+
+ for ( app = entry->lde_attrs; *app != NULL; ++app ) {
+ for ( valp = (*app)->lda_values; *valp != NULL; ++valp ) {
+ free( *valp );
+ }
+ free( (*app)->lda_values );
+ free( (*app)->lda_name );
+ }
+
+ free( entry->lde_attrs );
+ free( entry );
+}
+
+
+int
+parse_input( FILE *ifp, FILE *ofp, struct ldop *op )
+{
+ char *p, *args, line[ MAXLINELEN + 1 ];
+ struct inputparams *ip;
+
+ if ( fgets( line, MAXLINELEN, ifp ) == NULL ) {
+ write_result( ofp, LDAP_OTHER, NULL, "Empty Input" );
+ }
+ line[ strlen( line ) - 1 ] = '\0';
+ if ( strncasecmp( line, STR_OP_SEARCH, sizeof( STR_OP_SEARCH ) - 1 )
+ != 0 ) {
+ write_result( ofp, LDAP_UNWILLING_TO_PERFORM, NULL,
+ "Operation Not Supported" );
+ return( -1 );
+ }
+
+ op->ldop_op = LDOP_SEARCH;
+
+ while ( fgets( line, MAXLINELEN, ifp ) != NULL ) {
+ line[ strlen( line ) - 1 ] = '\0';
+ debug_printf( "<< %s\n", line );
+
+ args = line;
+ if (( ip = find_input_tag( &args )) == NULL ) {
+ debug_printf( "ignoring %s\n", line );
+ continue;
+ }
+
+ switch( ip->ip_type ) {
+ case IP_TYPE_SUFFIX:
+ add_strval( &op->ldop_suffixes, args );
+ break;
+ case IP_TYPE_BASE:
+ op->ldop_dn = estrdup( args );
+ break;
+ case IP_TYPE_SCOPE:
+ if ( lutil_atoi( &op->ldop_srch.ldsp_scope, args ) != 0 ||
+ ( op->ldop_srch.ldsp_scope != LDAP_SCOPE_BASE &&
+ op->ldop_srch.ldsp_scope != LDAP_SCOPE_ONELEVEL &&
+ op->ldop_srch.ldsp_scope != LDAP_SCOPE_SUBTREE ) )
+ {
+ write_result( ofp, LDAP_OTHER, NULL, "Bad scope" );
+ return( -1 );
+ }
+ break;
+ case IP_TYPE_ALIASDEREF:
+ if ( lutil_atoi( &op->ldop_srch.ldsp_aliasderef, args ) != 0 ) {
+ write_result( ofp, LDAP_OTHER, NULL, "Bad alias deref" );
+ return( -1 );
+ }
+ break;
+ case IP_TYPE_SIZELIMIT:
+ if ( lutil_atoi( &op->ldop_srch.ldsp_sizelimit, args ) != 0 ) {
+ write_result( ofp, LDAP_OTHER, NULL, "Bad size limit" );
+ return( -1 );
+ }
+ break;
+ case IP_TYPE_TIMELIMIT:
+ if ( lutil_atoi( &op->ldop_srch.ldsp_timelimit, args ) != 0 ) {
+ write_result( ofp, LDAP_OTHER, NULL, "Bad time limit" );
+ return( -1 );
+ }
+ break;
+ case IP_TYPE_FILTER:
+ op->ldop_srch.ldsp_filter = estrdup( args );
+ break;
+ case IP_TYPE_ATTRSONLY:
+ op->ldop_srch.ldsp_attrsonly = ( *args != '0' );
+ break;
+ case IP_TYPE_ATTRS:
+ if ( strcmp( args, "all" ) == 0 ) {
+ op->ldop_srch.ldsp_attrs = NULL;
+ } else {
+ while ( args != NULL ) {
+ if (( p = strchr( args, ' ' )) != NULL ) {
+ *p++ = '\0';
+ while ( isspace( (unsigned char) *p )) {
+ ++p;
+ }
+ }
+ add_strval( &op->ldop_srch.ldsp_attrs, args );
+ args = p;
+ }
+ }
+ break;
+ }
+ }
+
+ if ( op->ldop_suffixes == NULL || op->ldop_dn == NULL ||
+ op->ldop_srch.ldsp_filter == NULL ) {
+ write_result( ofp, LDAP_OTHER, NULL,
+ "Required suffix:, base:, or filter: missing" );
+ return( -1 );
+ }
+
+ return( 0 );
+}
+
+
+struct inputparams *
+find_input_tag( char **linep ) /* linep is set to start of args */
+{
+ int i;
+ char *p;
+
+ if (( p = strchr( *linep, ':' )) == NULL || p == *linep ) {
+ return( NULL );
+ }
+
+ for ( i = 0; ips[ i ].ip_type != 0; ++i ) {
+ if ( strncasecmp( *linep, ips[ i ].ip_tag, p - *linep ) == 0 ) {
+ while ( isspace( (unsigned char) *(++p) )) {
+ ;
+ }
+ *linep = p;
+ return( &ips[ i ] );
+ }
+ }
+
+ return( NULL );
+}
+
+
+void
+add_strval( char ***sp, char *val )
+{
+ int i;
+ char **vallist;
+
+ vallist = *sp;
+
+ if ( vallist == NULL ) {
+ i = 0;
+ } else {
+ for ( i = 0; vallist[ i ] != NULL; ++i ) {
+ ;
+ }
+ }
+
+ vallist = (char **)erealloc( vallist, ( i + 2 ) * sizeof( char * ));
+ vallist[ i ] = estrdup( val );
+ vallist[ ++i ] = NULL;
+ *sp = vallist;
+}
+
+
+char *
+estrdup( char *s )
+{
+ char *p;
+
+ if (( p = strdup( s )) == NULL ) {
+ debug_printf( "strdup failed\n" );
+ exit( EXIT_FAILURE );
+ }
+
+ return( p );
+}
+
+
+void *
+erealloc( void *s, unsigned size )
+{
+ char *p;
+
+ if ( s == NULL ) {
+ p = malloc( size );
+ } else {
+ p = realloc( s, size );
+ }
+
+ if ( p == NULL ) {
+ debug_printf( "realloc( p, %d ) failed\n", size );
+ exit( EXIT_FAILURE );
+ }
+
+ return( p );
+}
+
+
+char *
+ecalloc( unsigned nelem, unsigned elsize )
+{
+ char *p;
+
+ if (( p = calloc( nelem, elsize )) == NULL ) {
+ debug_printf( "calloc( %d, %d ) failed\n", nelem, elsize );
+ exit( EXIT_FAILURE );
+ }
+
+ return( p );
+}
+
+
+#ifdef LDAP_DEBUG
+
+/* VARARGS */
+void
+debug_printf( const char *fmt, ... )
+{
+ va_list ap;
+
+ if ( debugflg ) {
+ va_start( ap, fmt );
+ fprintf( stderr, "%s: ", progname );
+ vfprintf( stderr, fmt, ap );
+ va_end( ap );
+ }
+}
+
+
+void
+dump_ldop( struct ldop *op )
+{
+ if ( !debugflg ) {
+ return;
+ }
+
+ debug_printf( "SEARCH operation\n" );
+ if ( op->ldop_suffixes == NULL ) {
+ debug_printf( " suffix: NONE\n" );
+ } else {
+ int i;
+ for ( i = 0; op->ldop_suffixes[ i ] != NULL; ++i ) {
+ debug_printf( " suffix: <%s>\n", op->ldop_suffixes[ i ] );
+ }
+ }
+ debug_printf( " dn: <%s>\n", op->ldop_dn );
+ debug_printf( " scope: <%d>\n", op->ldop_srch.ldsp_scope );
+ debug_printf( " filter: <%s>\n", op->ldop_srch.ldsp_filter );
+ debug_printf( "aliasderef: <%d>\n", op->ldop_srch.ldsp_aliasderef );
+ debug_printf( " sizelimit: <%d>\n", op->ldop_srch.ldsp_sizelimit );
+ debug_printf( " timelimit: <%d>\n", op->ldop_srch.ldsp_timelimit );
+ debug_printf( " attrsonly: <%d>\n", op->ldop_srch.ldsp_attrsonly );
+ if ( op->ldop_srch.ldsp_attrs == NULL ) {
+ debug_printf( " attrs: ALL\n" );
+ } else {
+ int i;
+
+ for ( i = 0; op->ldop_srch.ldsp_attrs[ i ] != NULL; ++i ) {
+ debug_printf( " attrs: <%s>\n", op->ldop_srch.ldsp_attrs[ i ] );
+ }
+ }
+}
+#endif /* LDAP_DEBUG */
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