diff options
Diffstat (limited to 'src/util')
| -rw-r--r-- | src/util/sss_utf8.c | 119 | ||||
| -rw-r--r-- | src/util/sss_utf8.h | 43 |
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_ */ |