diff options
Diffstat (limited to 'libraries/libldap/charray.c')
| -rw-r--r-- | libraries/libldap/charray.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/libraries/libldap/charray.c b/libraries/libldap/charray.c new file mode 100644 index 0000000..5731edb --- /dev/null +++ b/libraries/libldap/charray.c @@ -0,0 +1,275 @@ +/* charray.c - routines for dealing with char * arrays */ +/* $OpenLDAP$ */ +/* 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>. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/string.h> +#include <ac/socket.h> + +#include "ldap-int.h" + +int +ldap_charray_add( + char ***a, + const char *s +) +{ + int n; + + if ( *a == NULL ) { + *a = (char **) LDAP_MALLOC( 2 * sizeof(char *) ); + n = 0; + + if( *a == NULL ) { + return -1; + } + + } else { + char **new; + + for ( n = 0; *a != NULL && (*a)[n] != NULL; n++ ) { + ; /* NULL */ + } + + new = (char **) LDAP_REALLOC( (char *) *a, + (n + 2) * sizeof(char *) ); + + if( new == NULL ) { + /* caller is required to call ldap_charray_free(*a) */ + return -1; + } + + *a = new; + } + + (*a)[n] = LDAP_STRDUP(s); + + if( (*a)[n] == NULL ) { + return 1; + } + + (*a)[++n] = NULL; + + return 0; +} + +int +ldap_charray_merge( + char ***a, + char **s +) +{ + int i, n, nn; + char **aa; + + for ( n = 0; *a != NULL && (*a)[n] != NULL; n++ ) { + ; /* NULL */ + } + for ( nn = 0; s[nn] != NULL; nn++ ) { + ; /* NULL */ + } + + aa = (char **) LDAP_REALLOC( (char *) *a, (n + nn + 1) * sizeof(char *) ); + + if( aa == NULL ) { + return -1; + } + + *a = aa; + + for ( i = 0; i < nn; i++ ) { + (*a)[n + i] = LDAP_STRDUP(s[i]); + + if( (*a)[n + i] == NULL ) { + for( --i ; i >= 0 ; i-- ) { + LDAP_FREE( (*a)[n + i] ); + (*a)[n + i] = NULL; + } + return -1; + } + } + + (*a)[n + nn] = NULL; + return 0; +} + +void +ldap_charray_free( char **a ) +{ + char **p; + + if ( a == NULL ) { + return; + } + + for ( p = a; *p != NULL; p++ ) { + if ( *p != NULL ) { + LDAP_FREE( *p ); + } + } + + LDAP_FREE( (char *) a ); +} + +int +ldap_charray_inlist( + char **a, + const char *s +) +{ + int i; + + if( a == NULL ) return 0; + + for ( i=0; a[i] != NULL; i++ ) { + if ( strcasecmp( s, a[i] ) == 0 ) { + return 1; + } + } + + return 0; +} + +char ** +ldap_charray_dup( char **a ) +{ + int i; + char **new; + + for ( i = 0; a[i] != NULL; i++ ) + ; /* NULL */ + + new = (char **) LDAP_MALLOC( (i + 1) * sizeof(char *) ); + + if( new == NULL ) { + return NULL; + } + + for ( i = 0; a[i] != NULL; i++ ) { + new[i] = LDAP_STRDUP( a[i] ); + + if( new[i] == NULL ) { + for( --i ; i >= 0 ; i-- ) { + LDAP_FREE( new[i] ); + } + LDAP_FREE( new ); + return NULL; + } + } + new[i] = NULL; + + return( new ); +} + +char ** +ldap_str2charray( const char *str_in, const char *brkstr ) +{ + char **res; + char *str, *s; + char *lasts; + int i; + + /* protect the input string from strtok */ + str = LDAP_STRDUP( str_in ); + if( str == NULL ) { + return NULL; + } + + i = 1; + for ( s = str; ; LDAP_UTF8_INCR(s) ) { + s = ldap_utf8_strpbrk( s, brkstr ); + if ( !s ) break; + i++; + } + + res = (char **) LDAP_MALLOC( (i + 1) * sizeof(char *) ); + + if( res == NULL ) { + LDAP_FREE( str ); + return NULL; + } + + i = 0; + + for ( s = ldap_utf8_strtok( str, brkstr, &lasts ); + s != NULL; + s = ldap_utf8_strtok( NULL, brkstr, &lasts ) ) + { + res[i] = LDAP_STRDUP( s ); + + if(res[i] == NULL) { + for( --i ; i >= 0 ; i-- ) { + LDAP_FREE( res[i] ); + } + LDAP_FREE( res ); + LDAP_FREE( str ); + return NULL; + } + + i++; + } + + res[i] = NULL; + + LDAP_FREE( str ); + return( res ); +} + +char * ldap_charray2str( char **a, const char *sep ) +{ + char *s, **v, *p; + int len; + int slen; + + if( sep == NULL ) sep = " "; + + slen = strlen( sep ); + len = 0; + + for ( v = a; *v != NULL; v++ ) { + len += strlen( *v ) + slen; + } + + if ( len == 0 ) { + return NULL; + } + + /* trim extra sep len */ + len -= slen; + + s = LDAP_MALLOC ( len + 1 ); + + if ( s == NULL ) { + return NULL; + } + + p = s; + for ( v = a; *v != NULL; v++ ) { + if ( v != a ) { + strncpy( p, sep, slen ); + p += slen; + } + + len = strlen( *v ); + strncpy( p, *v, len ); + p += len; + } + + *p = '\0'; + return s; +} |