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24275cd800
For example there are at least two locales (tr_TR and az_AZ) in glibc having dotless i transformation different from Latin scripts and GUID versus Guid comparison would be different there (attribute name would not match in the test). See also https://en.wikipedia.org/wiki/Dotted_and_dotless_I https://lists.samba.org/archive/samba-technical/2019-December/134659.html This fixes: LC_ALL=tr_TR.UTF-8 make test BUG: https://bugzilla.samba.org/show_bug.cgi?id=15248 Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/*
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ldb database library
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Copyright (C) Andrew Tridgell 2004
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** NOTE! The following LGPL license applies to the ldb
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** library. This does NOT imply that all of Samba is released
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** under the LGPL
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Name: ldb
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*
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* Component: ldb utf8 handling
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*
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* Description: case folding and case comparison for UTF8 strings
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*
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* Author: Andrew Tridgell
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*/
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#include "ldb_private.h"
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#include "system/locale.h"
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/*
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this allow the user to pass in a caseless comparison
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function to handle utf8 caseless comparisons
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*/
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void ldb_set_utf8_fns(struct ldb_context *ldb,
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void *context,
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char *(*casefold)(void *, void *, const char *, size_t))
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{
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if (context)
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ldb->utf8_fns.context = context;
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if (casefold)
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ldb->utf8_fns.casefold = casefold;
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}
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/*
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a simple case folding function
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NOTE: does not handle UTF8
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*/
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char *ldb_casefold_default(void *context, TALLOC_CTX *mem_ctx, const char *s, size_t n)
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{
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size_t i;
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char *ret = talloc_strndup(mem_ctx, s, n);
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if (!s) {
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errno = ENOMEM;
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return NULL;
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}
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for (i=0;ret[i];i++) {
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ret[i] = ldb_ascii_toupper((unsigned char)ret[i]);
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}
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return ret;
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}
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void ldb_set_utf8_default(struct ldb_context *ldb)
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{
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ldb_set_utf8_fns(ldb, NULL, ldb_casefold_default);
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}
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char *ldb_casefold(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *s, size_t n)
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{
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return ldb->utf8_fns.casefold(ldb->utf8_fns.context, mem_ctx, s, n);
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}
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/*
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check the attribute name is valid according to rfc2251
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returns 1 if the name is ok
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*/
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int ldb_valid_attr_name(const char *s)
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{
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size_t i;
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if (!s || !s[0])
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return 0;
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/* handle special ldb_tdb wildcard */
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if (strcmp(s, "*") == 0) return 1;
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for (i = 0; s[i]; i++) {
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if (! isascii(s[i])) {
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return 0;
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}
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if (i == 0) { /* first char must be an alpha (or our special '@' identifier) */
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if (! (isalpha(s[i]) || (s[i] == '@'))) {
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return 0;
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}
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} else {
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if (! (isalnum(s[i]) || (s[i] == '-'))) {
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return 0;
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}
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}
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}
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return 1;
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}
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char *ldb_attr_casefold(TALLOC_CTX *mem_ctx, const char *s)
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{
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size_t i;
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char *ret = talloc_strdup(mem_ctx, s);
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if (!ret) {
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errno = ENOMEM;
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return NULL;
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}
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for (i = 0; ret[i]; i++) {
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ret[i] = ldb_ascii_toupper((unsigned char)ret[i]);
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}
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return ret;
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}
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/*
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we accept either 'dn' or 'distinguishedName' for a distinguishedName
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*/
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int ldb_attr_dn(const char *attr)
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{
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if (ldb_attr_cmp(attr, "dn") == 0 ||
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ldb_attr_cmp(attr, "distinguishedName") == 0) {
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return 0;
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}
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return -1;
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}
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_PRIVATE_ char ldb_ascii_toupper(char c) {
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return ('a' <= c && c <= 'z') ? c ^ 0x20 : toupper(c);
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}
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