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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:35:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:35:32 +0000 |
commit | 5ea77a75dd2d2158401331879f3c8f47940a732c (patch) | |
tree | d89dc06e9f4850a900f161e25f84e922c4f86cc8 /libraries/libldap/filter.c | |
parent | Initial commit. (diff) | |
download | openldap-upstream/2.5.13+dfsg.tar.xz openldap-upstream/2.5.13+dfsg.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 '')
-rw-r--r-- | libraries/libldap/filter.c | 1115 |
1 files changed, 1115 insertions, 0 deletions
diff --git a/libraries/libldap/filter.c b/libraries/libldap/filter.c new file mode 100644 index 0000000..064b2ea --- /dev/null +++ b/libraries/libldap/filter.c @@ -0,0 +1,1115 @@ +/* search.c */ +/* $OpenLDAP$ */ +/* 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. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/stdlib.h> + +#include <ac/socket.h> +#include <ac/string.h> +#include <ac/time.h> + +#include "ldap-int.h" + +static int put_simple_vrFilter LDAP_P(( + BerElement *ber, + char *str )); + +static int put_vrFilter_list LDAP_P(( + BerElement *ber, + char *str )); + +static char *put_complex_filter LDAP_P(( + BerElement *ber, + char *str, + ber_tag_t tag, + int not )); + +static int put_simple_filter LDAP_P(( + BerElement *ber, + char *str )); + +static int put_substring_filter LDAP_P(( + BerElement *ber, + char *type, + char *str, + char *nextstar )); + +static int put_filter_list LDAP_P(( + BerElement *ber, + char *str, + ber_tag_t tag )); + +static int ldap_is_oid ( const char *str ) +{ + int i; + + if( LDAP_ALPHA( str[0] )) { + for( i=1; str[i]; i++ ) { + if( !LDAP_LDH( str[i] )) { + return 0; + } + } + return 1; + + } else if LDAP_DIGIT( str[0] ) { + int dot=0; + for( i=1; str[i]; i++ ) { + if( LDAP_DIGIT( str[i] )) { + dot=0; + + } else if ( str[i] == '.' ) { + if( ++dot > 1 ) return 0; + + } else { + return 0; + } + } + return !dot; + } + + return 0; +} + +static int ldap_is_desc ( const char *str ) +{ + int i; + + if( LDAP_ALPHA( str[0] )) { + for( i=1; str[i]; i++ ) { + if( str[i] == ';' ) { + str = &str[i+1]; + goto options; + } + + if( !LDAP_LDH( str[i] )) { + return 0; + } + } + return 1; + + } else if LDAP_DIGIT( str[0] ) { + int dot=0; + for( i=1; str[i]; i++ ) { + if( str[i] == ';' ) { + if( dot ) return 0; + str = &str[i+1]; + goto options; + } + + if( LDAP_DIGIT( str[i] )) { + dot=0; + + } else if ( str[i] == '.' ) { + if( ++dot > 1 ) return 0; + + } else { + return 0; + } + } + return !dot; + } + + return 0; + +options: + if( !LDAP_LDH( str[0] )) { + return 0; + } + for( i=1; str[i]; i++ ) { + if( str[i] == ';' ) { + str = &str[i+1]; + goto options; + } + if( !LDAP_LDH( str[i] )) { + return 0; + } + } + return 1; +} + +static char * +find_right_paren( char *s ) +{ + int balance, escape; + + balance = 1; + escape = 0; + while ( *s && balance ) { + if ( !escape ) { + if ( *s == '(' ) { + balance++; + } else if ( *s == ')' ) { + balance--; + } + } + + escape = ( *s == '\\' && !escape ); + + if ( balance ) s++; + } + + return *s ? s : NULL; +} + +static int hex2value( int c ) +{ + if( c >= '0' && c <= '9' ) { + return c - '0'; + } + + if( c >= 'A' && c <= 'F' ) { + return c + (10 - (int) 'A'); + } + + if( c >= 'a' && c <= 'f' ) { + return c + (10 - (int) 'a'); + } + + return -1; +} + +char * +ldap_pvt_find_wildcard( const char *s ) +{ + for( ; *s; s++ ) { + switch( *s ) { + case '*': /* found wildcard */ + return (char *) s; + + case '(': + case ')': + return NULL; + + case '\\': + if( s[1] == '\0' ) return NULL; + + if( LDAP_HEX( s[1] ) && LDAP_HEX( s[2] ) ) { + s+=2; + + } else switch( s[1] ) { + default: + return NULL; + + /* allow RFC 1960 escapes */ + case '*': + case '(': + case ')': + case '\\': + s++; + } + } + } + + return (char *) s; +} + +/* unescape filter value */ +/* support both LDAP v2 and v3 escapes */ +/* output can include nul characters! */ +ber_slen_t +ldap_pvt_filter_value_unescape( char *fval ) +{ + ber_slen_t r, v; + int v1, v2; + + for( r=v=0; fval[v] != '\0'; v++ ) { + switch( fval[v] ) { + case '(': + case ')': + case '*': + return -1; + + case '\\': + /* escape */ + v++; + + if ( fval[v] == '\0' ) { + /* escape at end of string */ + return -1; + } + + if (( v1 = hex2value( fval[v] )) >= 0 ) { + /* LDAPv3 escape */ + if (( v2 = hex2value( fval[v+1] )) < 0 ) { + /* must be two digit code */ + return -1; + } + + fval[r++] = v1 * 16 + v2; + v++; + + } else { + /* LDAPv2 escape */ + switch( fval[v] ) { + case '(': + case ')': + case '*': + case '\\': + fval[r++] = fval[v]; + break; + default: + /* illegal escape */ + return -1; + } + } + break; + + default: + fval[r++] = fval[v]; + } + } + + fval[r] = '\0'; + return r; +} + +static char * +put_complex_filter( BerElement *ber, char *str, ber_tag_t tag, int not ) +{ + char *next; + + /* + * We have (x(filter)...) with str sitting on + * the x. We have to find the paren matching + * the one before the x and put the intervening + * filters by calling put_filter_list(). + */ + + /* put explicit tag */ + if ( ber_printf( ber, "t{" /*"}"*/, tag ) == -1 ) { + return NULL; + } + + str++; + if ( (next = find_right_paren( str )) == NULL ) { + return NULL; + } + + *next = '\0'; + if ( put_filter_list( ber, str, tag ) == -1 ) { + return NULL; + } + + /* close the '(' */ + *next++ = ')'; + + /* flush explicit tagged thang */ + if ( ber_printf( ber, /*"{"*/ "N}" ) == -1 ) { + return NULL; + } + + return next; +} + +int +ldap_pvt_put_filter( BerElement *ber, const char *str_in ) +{ + int rc; + char *freeme; + char *str; + char *next; + int parens, balance, escape; + + /* + * A Filter looks like this (RFC 4511 as extended by RFC 4526): + * Filter ::= CHOICE { + * and [0] SET SIZE (0..MAX) OF filter Filter, + * or [1] SET SIZE (0..MAX) OF filter Filter, + * not [2] Filter, + * equalityMatch [3] AttributeValueAssertion, + * substrings [4] SubstringFilter, + * greaterOrEqual [5] AttributeValueAssertion, + * lessOrEqual [6] AttributeValueAssertion, + * present [7] AttributeDescription, + * approxMatch [8] AttributeValueAssertion, + * extensibleMatch [9] MatchingRuleAssertion, + * ... } + * + * SubstringFilter ::= SEQUENCE { + * type AttributeDescription, + * substrings SEQUENCE SIZE (1..MAX) OF substring CHOICE { + * initial [0] AssertionValue, -- only once + * any [1] AssertionValue, + * final [2] AssertionValue -- only once + * } + * } + * + * MatchingRuleAssertion ::= SEQUENCE { + * matchingRule [1] MatchingRuleId OPTIONAL, + * type [2] AttributeDescription OPTIONAL, + * matchValue [3] AssertionValue, + * dnAttributes [4] BOOLEAN DEFAULT FALSE } + * + * Note: tags in a CHOICE are always explicit + */ + + Debug1( LDAP_DEBUG_TRACE, "put_filter: \"%s\"\n", str_in ); + + freeme = LDAP_STRDUP( str_in ); + if( freeme == NULL ) return LDAP_NO_MEMORY; + str = freeme; + + parens = 0; + while ( *str ) { + switch ( *str ) { + case '(': /*')'*/ + str++; + parens++; + + /* skip spaces */ + while( LDAP_SPACE( *str ) ) str++; + + switch ( *str ) { + case '&': + Debug0( LDAP_DEBUG_TRACE, "put_filter: AND\n" ); + + str = put_complex_filter( ber, str, + LDAP_FILTER_AND, 0 ); + if( str == NULL ) { + rc = -1; + goto done; + } + + parens--; + break; + + case '|': + Debug0( LDAP_DEBUG_TRACE, "put_filter: OR\n" ); + + str = put_complex_filter( ber, str, + LDAP_FILTER_OR, 0 ); + if( str == NULL ) { + rc = -1; + goto done; + } + + parens--; + break; + + case '!': + Debug0( LDAP_DEBUG_TRACE, "put_filter: NOT\n" ); + + str = put_complex_filter( ber, str, + LDAP_FILTER_NOT, 0 ); + if( str == NULL ) { + rc = -1; + goto done; + } + + parens--; + break; + + case '(': + rc = -1; + goto done; + + default: + Debug0( LDAP_DEBUG_TRACE, "put_filter: simple\n" ); + + balance = 1; + escape = 0; + next = str; + + while ( *next && balance ) { + if ( escape == 0 ) { + if ( *next == '(' ) { + balance++; + } else if ( *next == ')' ) { + balance--; + } + } + + if ( *next == '\\' && ! escape ) { + escape = 1; + } else { + escape = 0; + } + + if ( balance ) next++; + } + + if ( balance != 0 ) { + rc = -1; + goto done; + } + + *next = '\0'; + + if ( put_simple_filter( ber, str ) == -1 ) { + rc = -1; + goto done; + } + + *next++ = /*'('*/ ')'; + + str = next; + parens--; + break; + } + break; + + case /*'('*/ ')': + Debug0( LDAP_DEBUG_TRACE, "put_filter: end\n" ); + if ( ber_printf( ber, /*"["*/ "]" ) == -1 ) { + rc = -1; + goto done; + } + str++; + parens--; + break; + + case ' ': + str++; + break; + + default: /* assume it's a simple type=value filter */ + Debug0( LDAP_DEBUG_TRACE, "put_filter: default\n" ); + next = strchr( str, '\0' ); + if ( put_simple_filter( ber, str ) == -1 ) { + rc = -1; + goto done; + } + str = next; + break; + } + if ( !parens ) + break; + } + + rc = ( parens || *str ) ? -1 : 0; + +done: + LDAP_FREE( freeme ); + return rc; +} + +/* + * Put a list of filters like this "(filter1)(filter2)..." + */ + +static int +put_filter_list( BerElement *ber, char *str, ber_tag_t tag ) +{ + char *next = NULL; + char save; + + Debug1( LDAP_DEBUG_TRACE, "put_filter_list \"%s\"\n", + str ); + + while ( *str ) { + while ( *str && LDAP_SPACE( (unsigned char) *str ) ) { + str++; + } + if ( *str == '\0' ) break; + + if ( (next = find_right_paren( str + 1 )) == NULL ) { + return -1; + } + save = *++next; + + /* now we have "(filter)" with str pointing to it */ + *next = '\0'; + if ( ldap_pvt_put_filter( ber, str ) == -1 ) return -1; + *next = save; + str = next; + + if( tag == LDAP_FILTER_NOT ) break; + } + + if( tag == LDAP_FILTER_NOT && ( next == NULL || *str )) { + return -1; + } + + return 0; +} + +static int +put_simple_filter( + BerElement *ber, + char *str ) +{ + char *s; + char *value; + ber_tag_t ftype; + int rc = -1; + + Debug1( LDAP_DEBUG_TRACE, "put_simple_filter: \"%s\"\n", + str ); + + str = LDAP_STRDUP( str ); + if( str == NULL ) return -1; + + if ( (s = strchr( str, '=' )) == NULL ) { + goto done; + } + + value = s + 1; + *s-- = '\0'; + + switch ( *s ) { + case '<': + ftype = LDAP_FILTER_LE; + *s = '\0'; + break; + + case '>': + ftype = LDAP_FILTER_GE; + *s = '\0'; + break; + + case '~': + ftype = LDAP_FILTER_APPROX; + *s = '\0'; + break; + + case ':': + /* RFC 4515 extensible filters are off the form: + * type [:dn] [:rule] := value + * or [:dn]:rule := value + */ + ftype = LDAP_FILTER_EXT; + *s = '\0'; + + { + char *dn = strchr( str, ':' ); + char *rule = NULL; + + if( dn != NULL ) { + *dn++ = '\0'; + rule = strchr( dn, ':' ); + + if( rule == NULL ) { + /* one colon */ + if ( strcasecmp(dn, "dn") == 0 ) { + /* must have attribute */ + if( !ldap_is_desc( str ) ) { + goto done; + } + + rule = ""; + + } else { + rule = dn; + dn = NULL; + } + + } else { + /* two colons */ + *rule++ = '\0'; + + if ( strcasecmp(dn, "dn") != 0 ) { + /* must have "dn" */ + goto done; + } + } + + } + + if ( *str == '\0' && ( !rule || *rule == '\0' ) ) { + /* must have either type or rule */ + goto done; + } + + if ( *str != '\0' && !ldap_is_desc( str ) ) { + goto done; + } + + if ( rule && *rule != '\0' && !ldap_is_oid( rule ) ) { + goto done; + } + + rc = ber_printf( ber, "t{" /*"}"*/, ftype ); + + if( rc != -1 && rule && *rule != '\0' ) { + rc = ber_printf( ber, "ts", LDAP_FILTER_EXT_OID, rule ); + } + + if( rc != -1 && *str != '\0' ) { + rc = ber_printf( ber, "ts", LDAP_FILTER_EXT_TYPE, str ); + } + + if( rc != -1 ) { + ber_slen_t len = ldap_pvt_filter_value_unescape( value ); + + if( len >= 0 ) { + rc = ber_printf( ber, "to", + LDAP_FILTER_EXT_VALUE, value, len ); + } else { + rc = -1; + } + } + + if( rc != -1 && dn ) { + rc = ber_printf( ber, "tb", + LDAP_FILTER_EXT_DNATTRS, (ber_int_t) 1 ); + } + + if( rc != -1 ) { + rc = ber_printf( ber, /*"{"*/ "N}" ); + } + } + goto done; + + default: + if( !ldap_is_desc( str ) ) { + goto done; + + } else { + char *nextstar = ldap_pvt_find_wildcard( value ); + + if ( nextstar == NULL ) { + goto done; + + } else if ( *nextstar == '\0' ) { + ftype = LDAP_FILTER_EQUALITY; + + } else if ( strcmp( value, "*" ) == 0 ) { + ftype = LDAP_FILTER_PRESENT; + + } else { + rc = put_substring_filter( ber, str, value, nextstar ); + goto done; + } + } break; + } + + if( !ldap_is_desc( str ) ) goto done; + + if ( ftype == LDAP_FILTER_PRESENT ) { + rc = ber_printf( ber, "ts", ftype, str ); + + } else { + ber_slen_t len = ldap_pvt_filter_value_unescape( value ); + + if( len >= 0 ) { + rc = ber_printf( ber, "t{soN}", + ftype, str, value, len ); + } + } + +done: + if( rc != -1 ) rc = 0; + LDAP_FREE( str ); + return rc; +} + +static int +put_substring_filter( BerElement *ber, char *type, char *val, char *nextstar ) +{ + int gotstar = 0; + ber_tag_t ftype = LDAP_FILTER_SUBSTRINGS; + + Debug2( LDAP_DEBUG_TRACE, "put_substring_filter \"%s=%s\"\n", + type, val ); + + if ( ber_printf( ber, "t{s{" /*"}}"*/, ftype, type ) == -1 ) { + return -1; + } + + for( ; *val; val=nextstar ) { + if ( gotstar ) + nextstar = ldap_pvt_find_wildcard( val ); + + if ( nextstar == NULL ) { + return -1; + } + + if ( *nextstar == '\0' ) { + ftype = LDAP_SUBSTRING_FINAL; + } else { + *nextstar++ = '\0'; + if ( gotstar++ == 0 ) { + ftype = LDAP_SUBSTRING_INITIAL; + } else { + ftype = LDAP_SUBSTRING_ANY; + } + } + + if ( *val != '\0' || ftype == LDAP_SUBSTRING_ANY ) { + ber_slen_t len = ldap_pvt_filter_value_unescape( val ); + + if ( len <= 0 ) { + return -1; + } + + if ( ber_printf( ber, "to", ftype, val, len ) == -1 ) { + return -1; + } + } + } + + if ( ber_printf( ber, /*"{{"*/ "N}N}" ) == -1 ) { + return -1; + } + + return 0; +} + +static int +put_vrFilter( BerElement *ber, const char *str_in ) +{ + int rc; + char *freeme; + char *str; + char *next; + int parens, balance, escape; + + /* + * A ValuesReturnFilter looks like this: + * + * ValuesReturnFilter ::= SEQUENCE OF SimpleFilterItem + * SimpleFilterItem ::= CHOICE { + * equalityMatch [3] AttributeValueAssertion, + * substrings [4] SubstringFilter, + * greaterOrEqual [5] AttributeValueAssertion, + * lessOrEqual [6] AttributeValueAssertion, + * present [7] AttributeType, + * approxMatch [8] AttributeValueAssertion, + * extensibleMatch [9] SimpleMatchingAssertion -- LDAPv3 + * } + * + * SubstringFilter ::= SEQUENCE { + * type AttributeType, + * SEQUENCE OF CHOICE { + * initial [0] IA5String, + * any [1] IA5String, + * final [2] IA5String + * } + * } + * + * SimpleMatchingAssertion ::= SEQUENCE { -- LDAPv3 + * matchingRule [1] MatchingRuleId OPTIONAL, + * type [2] AttributeDescription OPTIONAL, + * matchValue [3] AssertionValue } + * + * (Source: RFC 3876) + */ + + Debug1( LDAP_DEBUG_TRACE, "put_vrFilter: \"%s\"\n", str_in ); + + freeme = LDAP_STRDUP( str_in ); + if( freeme == NULL ) return LDAP_NO_MEMORY; + str = freeme; + + parens = 0; + while ( *str ) { + switch ( *str ) { + case '(': /*')'*/ + str++; + parens++; + + /* skip spaces */ + while( LDAP_SPACE( *str ) ) str++; + + switch ( *str ) { + case '(': + if ( (next = find_right_paren( str )) == NULL ) { + rc = -1; + goto done; + } + + *next = '\0'; + + if ( put_vrFilter_list( ber, str ) == -1 ) { + rc = -1; + goto done; + } + + /* close the '(' */ + *next++ = ')'; + + str = next; + + parens--; + break; + + + default: + Debug0( LDAP_DEBUG_TRACE, "put_vrFilter: simple\n" ); + + balance = 1; + escape = 0; + next = str; + + while ( *next && balance ) { + if ( escape == 0 ) { + if ( *next == '(' ) { + balance++; + } else if ( *next == ')' ) { + balance--; + } + } + + if ( *next == '\\' && ! escape ) { + escape = 1; + } else { + escape = 0; + } + + if ( balance ) next++; + } + + if ( balance != 0 ) { + rc = -1; + goto done; + } + + *next = '\0'; + + if ( put_simple_vrFilter( ber, str ) == -1 ) { + rc = -1; + goto done; + } + + *next++ = /*'('*/ ')'; + + str = next; + parens--; + break; + } + break; + + case /*'('*/ ')': + Debug0( LDAP_DEBUG_TRACE, "put_vrFilter: end\n" ); + if ( ber_printf( ber, /*"["*/ "]" ) == -1 ) { + rc = -1; + goto done; + } + str++; + parens--; + break; + + case ' ': + str++; + break; + + default: /* assume it's a simple type=value filter */ + Debug0( LDAP_DEBUG_TRACE, "put_vrFilter: default\n" ); + next = strchr( str, '\0' ); + if ( put_simple_vrFilter( ber, str ) == -1 ) { + rc = -1; + goto done; + } + str = next; + break; + } + } + + rc = parens ? -1 : 0; + +done: + LDAP_FREE( freeme ); + return rc; +} + +int +ldap_put_vrFilter( BerElement *ber, const char *str_in ) +{ + int rc =0; + + if ( ber_printf( ber, "{" /*"}"*/ ) == -1 ) { + return -1; + } + + rc = put_vrFilter( ber, str_in ); + + if ( ber_printf( ber, /*"{"*/ "N}" ) == -1 ) { + rc = -1; + } + + return rc; +} + +static int +put_vrFilter_list( BerElement *ber, char *str ) +{ + char *next = NULL; + char save; + + Debug1( LDAP_DEBUG_TRACE, "put_vrFilter_list \"%s\"\n", + str ); + + while ( *str ) { + while ( *str && LDAP_SPACE( (unsigned char) *str ) ) { + str++; + } + if ( *str == '\0' ) break; + + if ( (next = find_right_paren( str + 1 )) == NULL ) { + return -1; + } + save = *++next; + + /* now we have "(filter)" with str pointing to it */ + *next = '\0'; + if ( put_vrFilter( ber, str ) == -1 ) return -1; + *next = save; + str = next; + } + + return 0; +} + +static int +put_simple_vrFilter( + BerElement *ber, + char *str ) +{ + char *s; + char *value; + ber_tag_t ftype; + int rc = -1; + + Debug1( LDAP_DEBUG_TRACE, "put_simple_vrFilter: \"%s\"\n", + str ); + + str = LDAP_STRDUP( str ); + if( str == NULL ) return -1; + + if ( (s = strchr( str, '=' )) == NULL ) { + goto done; + } + + value = s + 1; + *s-- = '\0'; + + switch ( *s ) { + case '<': + ftype = LDAP_FILTER_LE; + *s = '\0'; + break; + + case '>': + ftype = LDAP_FILTER_GE; + *s = '\0'; + break; + + case '~': + ftype = LDAP_FILTER_APPROX; + *s = '\0'; + break; + + case ':': + /* According to ValuesReturnFilter control definition + * extensible filters are off the form: + * type [:rule] := value + * or :rule := value + */ + ftype = LDAP_FILTER_EXT; + *s = '\0'; + + { + char *rule = strchr( str, ':' ); + + if( rule == NULL ) { + /* must have attribute */ + if( !ldap_is_desc( str ) ) { + goto done; + } + rule = ""; + } else { + *rule++ = '\0'; + } + + if ( *str == '\0' && ( !rule || *rule == '\0' ) ) { + /* must have either type or rule */ + goto done; + } + + if ( *str != '\0' && !ldap_is_desc( str ) ) { + goto done; + } + + if ( rule && *rule != '\0' && !ldap_is_oid( rule ) ) { + goto done; + } + + rc = ber_printf( ber, "t{" /*"}"*/, ftype ); + + if( rc != -1 && rule && *rule != '\0' ) { + rc = ber_printf( ber, "ts", LDAP_FILTER_EXT_OID, rule ); + } + + if( rc != -1 && *str != '\0' ) { + rc = ber_printf( ber, "ts", LDAP_FILTER_EXT_TYPE, str ); + } + + if( rc != -1 ) { + ber_slen_t len = ldap_pvt_filter_value_unescape( value ); + + if( len >= 0 ) { + rc = ber_printf( ber, "to", + LDAP_FILTER_EXT_VALUE, value, len ); + } else { + rc = -1; + } + } + + if( rc != -1 ) { + rc = ber_printf( ber, /*"{"*/ "N}" ); + } + } + goto done; + + default: + if( !ldap_is_desc( str ) ) { + goto done; + + } else { + char *nextstar = ldap_pvt_find_wildcard( value ); + + if ( nextstar == NULL ) { + goto done; + + } else if ( *nextstar == '\0' ) { + ftype = LDAP_FILTER_EQUALITY; + + } else if ( strcmp( value, "*" ) == 0 ) { + ftype = LDAP_FILTER_PRESENT; + + } else { + rc = put_substring_filter( ber, str, value, nextstar ); + goto done; + } + } break; + } + + if( !ldap_is_desc( str ) ) goto done; + + if ( ftype == LDAP_FILTER_PRESENT ) { + rc = ber_printf( ber, "ts", ftype, str ); + + } else { + ber_slen_t len = ldap_pvt_filter_value_unescape( value ); + + if( len >= 0 ) { + rc = ber_printf( ber, "t{soN}", + ftype, str, value, len ); + } + } + +done: + if( rc != -1 ) rc = 0; + LDAP_FREE( str ); + return rc; +} + |