diff options
Diffstat (limited to 'release-0.6.9/avahi-core/domain-util.c')
-rw-r--r-- | release-0.6.9/avahi-core/domain-util.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/release-0.6.9/avahi-core/domain-util.c b/release-0.6.9/avahi-core/domain-util.c new file mode 100644 index 0000000..ab1ec8d --- /dev/null +++ b/release-0.6.9/avahi-core/domain-util.c @@ -0,0 +1,132 @@ +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi 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 Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <unistd.h> +#include <ctype.h> +#include <sys/utsname.h> +#include <stdio.h> + +#include <avahi-common/malloc.h> + +#include "domain-util.h" +#include "util.h" + +static void strip_bad_chars(char *s) { + char *p, *d; + + s[strcspn(s, ".")] = 0; + + for (p = s, d = s; *p; p++) + if (isalnum(*p) || *p == '-') + *(d++) = *p; + + *d = 0; +} + +char *avahi_get_host_name(char *ret_s, size_t size) { + assert(ret_s); + assert(size > 0); + + if (gethostname(ret_s, size) >= 0) { + ret_s[size-1] = 0; + strip_bad_chars(ret_s); + } else + *ret_s = 0; + + if (*ret_s == 0) { + struct utsname utsname; + + /* No hostname was set, so let's take the OS name */ + + if (uname(&utsname) >= 0) { + snprintf(ret_s, size, "%s", utsname.sysname); + strip_bad_chars(ret_s); + avahi_strdown(ret_s); + } + + if (*ret_s == 0) + snprintf(ret_s, size, "unnamed"); + } + + if (size >= AVAHI_LABEL_MAX) + ret_s[AVAHI_LABEL_MAX-1] = 0; + + return ret_s; +} + +char *avahi_get_host_name_strdup(void) { + char t[AVAHI_DOMAIN_NAME_MAX]; + + if (!(avahi_get_host_name(t, sizeof(t)))) + return NULL; + + return avahi_strdup(t); +} + +int avahi_binary_domain_cmp(const char *a, const char *b) { + assert(a); + assert(b); + + if (a == b) + return 0; + + for (;;) { + char ca[AVAHI_LABEL_MAX], cb[AVAHI_LABEL_MAX], *p; + int r; + + p = avahi_unescape_label(&a, ca, sizeof(ca)); + assert(p); + p = avahi_unescape_label(&b, cb, sizeof(cb)); + assert(p); + + if ((r = strcmp(ca, cb))) + return r; + + if (!*a && !*b) + return 0; + } +} + +int avahi_domain_ends_with(const char *domain, const char *suffix) { + assert(domain); + assert(suffix); + + for (;;) { + char dummy[AVAHI_LABEL_MAX], *r; + + if (*domain == 0) + return 0; + + if (avahi_domain_equal(domain, suffix)) + return 1; + + r = avahi_unescape_label(&domain, dummy, sizeof(dummy)); + assert(r); + } +} + |