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authorStephen Gallagher <sgallagh@redhat.com>2011-12-02 11:59:20 -0500
committerStephen Gallagher <sgallagh@redhat.com>2011-12-05 11:50:49 -0500
commitb32159300fea63222d8dd9200ed634087704ea74 (patch)
tree1df8dd260bc69f2611e53e05cc64b90e5583d576 /src/util
parentf46b9fd64ef09aae23220c5adb2fe4d3e4adc553 (diff)
downloadsssd-b32159300fea63222d8dd9200ed634087704ea74.tar.gz
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Allow using Glib for UTF8 support
Diffstat (limited to 'src/util')
-rw-r--r--src/util/sss_utf8.c119
-rw-r--r--src/util/sss_utf8.h43
2 files changed, 162 insertions, 0 deletions
diff --git a/src/util/sss_utf8.c b/src/util/sss_utf8.c
new file mode 100644
index 00000000..4a98233b
--- /dev/null
+++ b/src/util/sss_utf8.c
@@ -0,0 +1,119 @@
+/*
+ SSSD
+
+ Authors:
+ Stephen Gallagher <sgallagh@redhat.com>
+
+ Copyright (C) 2011 Red Hat
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "util/util.h"
+#include "sss_utf8.h"
+
+#ifdef HAVE_LIBUNISTRING
+bool sss_utf8_check(const uint8_t *s, size_t n)
+{
+ if (u8_check(s, n) == NULL) {
+ return true;
+ }
+ return false;
+}
+
+#elif HAVE_GLIB2
+bool sss_utf8_check(const uint8_t *s, size_t n)
+{
+ return g_utf8_validate((const gchar *)s, n, NULL);
+}
+
+#else
+#error No unicode library
+#endif
+
+/* Returns EOK on match, ENOTUNIQ if comparison succeeds but
+ * does not match.
+ * May return other errno error codes on failure
+ */
+#ifdef HAVE_LIBUNISTRING
+errno_t sss_utf8_case_eq(const uint8_t *s1, const uint8_t *s2)
+{
+
+ /* Do a case-insensitive comparison.
+ * The input must be encoded in UTF8.
+ * We have no way of knowing the language,
+ * so we'll pass NULL for the language and
+ * hope for the best.
+ */
+ int ret;
+ int resultp;
+ size_t n1, n2;
+ errno = 0;
+
+ n1 = u8_strlen(s1);
+ n2 = u8_strlen(s2);
+
+ ret = u8_casecmp(s1, n1,
+ s2, n2,
+ NULL, NULL,
+ &resultp);
+ if (ret < 0) {
+ /* An error occurred */
+ return errno;
+ }
+
+ if (resultp == 0) {
+ return EOK;
+ }
+ return ENOMATCH;
+}
+
+#elif HAVE_GLIB2
+errno_t sss_utf8_case_eq(const uint8_t *s1, const uint8_t *s2)
+{
+ gchar *gs1;
+ gchar *gs2;
+ gssize n1, n2;
+ gint gret;
+ errno_t ret;
+
+ n1 = g_utf8_strlen((const gchar *)s1, -1);
+ n2 = g_utf8_strlen((const gchar *)s2, -1);
+
+ gs1 = g_utf8_casefold((const gchar *)s1, n1);
+ if (gs1 == NULL) {
+ return ENOMEM;
+ }
+
+ gs2 = g_utf8_casefold((const gchar *)s2, n2);
+ if (gs2 == NULL) {
+ return ENOMEM;
+ }
+
+ gret = g_utf8_collate(gs1, gs2);
+ if (gret == 0) {
+ ret = EOK;
+ } else {
+ ret = ENOMATCH;
+ }
+
+ g_free(gs1);
+ g_free(gs2);
+
+ return ret;
+}
+
+#else
+#error No unicode library
+#endif
diff --git a/src/util/sss_utf8.h b/src/util/sss_utf8.h
new file mode 100644
index 00000000..37dcff95
--- /dev/null
+++ b/src/util/sss_utf8.h
@@ -0,0 +1,43 @@
+/*
+ SSSD
+
+ Authors:
+ Stephen Gallagher <sgallagh@redhat.com>
+
+ Copyright (C) 2011 Red Hat
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef SSS_UTF8_H_
+#define SSS_UTF8_H_
+
+#ifdef HAVE_LIBUNISTRING
+#include <unistr.h>
+#include <unicase.h>
+#elif HAVE_GLIB2
+#include <glib.h>
+#endif
+#include "util/util.h"
+
+#ifndef ENOMATCH
+#define ENOMATCH -1
+#endif
+
+bool sss_utf8_check(const uint8_t *s, size_t n);
+
+errno_t sss_utf8_case_eq(const uint8_t *s1, const uint8_t *s2);
+
+
+#endif /* SSS_UTF8_H_ */