-/* $Id$ */
-
/***
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
#endif
#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <limits.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <ctype.h>
+#include <avahi-common/malloc.h>
#include "util.h"
-gchar *avahi_get_host_name(void) {
-#ifdef HOST_NAME_MAX
- char t[HOST_NAME_MAX];
-#else
- char t[256];
-#endif
- gethostname(t, sizeof(t));
- t[sizeof(t)-1] = 0;
- return avahi_normalize_name(t);
-}
-
-static gchar *unescape_uneeded(const gchar *src, gchar *ret_dest, size_t size) {
- gboolean escaped = FALSE;
-
- g_assert(src);
- g_assert(ret_dest);
- g_assert(size > 0);
-
- for (; *src; src++) {
-
- if (!escaped && *src == '\\')
- escaped = TRUE;
- else if (escaped && (*src == '.' || *src == '\\')) {
+void avahi_hexdump(const void* p, size_t size) {
+ const uint8_t *c = p;
+ assert(p);
- if ((size -= 2) <= 1) break;
-
- *(ret_dest++) = '\\';
- *(ret_dest++) = *src;
+ printf("Dumping %lu bytes from %p:\n", (unsigned long) size, p);
- escaped = FALSE;
- } else {
- if (--size <= 1) break;
+ while (size > 0) {
+ unsigned i;
- *(ret_dest++) = *src;
- escaped = FALSE;
+ for (i = 0; i < 16; i++) {
+ if (i < size)
+ printf("%02x ", c[i]);
+ else
+ printf(" ");
}
- }
-
- *ret_dest = 0;
-
- return ret_dest;
-}
+ for (i = 0; i < 16; i++) {
+ if (i < size)
+ printf("%c", c[i] >= 32 && c[i] < 127 ? c[i] : '.');
+ else
+ printf(" ");
+ }
-gchar *avahi_normalize_name(const gchar *s) {
- gchar tmp[256];
- gchar *n, *t;
- guint l;
- g_assert(s);
+ printf("\n");
- unescape_uneeded(s, tmp, sizeof(tmp));
+ c += 16;
- n = g_utf8_normalize(tmp, -1, G_NORMALIZE_DEFAULT);
+ if (size <= 16)
+ break;
- if ((l = strlen(n)) == 0) {
- g_free(n);
- return g_strdup(".");
+ size -= 16;
}
-
- if (n[l-1] == '.')
- return n;
-
- t = g_strdup_printf("%s.", n);
- g_free(n);
- return t;
}
-gint avahi_timeval_compare(const GTimeVal *a, const GTimeVal *b) {
- g_assert(a);
- g_assert(b);
-
- if (a->tv_sec < b->tv_sec)
- return -1;
+char *avahi_format_mac_address(char *r, size_t l, const uint8_t* mac, size_t size) {
+ char *t = r;
+ unsigned i;
+ static const char hex[] = "0123456789abcdef";
- if (a->tv_sec > b->tv_sec)
- return 1;
+ assert(r);
+ assert(l > 0);
+ assert(mac);
- if (a->tv_usec < b->tv_usec)
- return -1;
-
- if (a->tv_usec > b->tv_usec)
- return 1;
-
- return 0;
-}
-
-glong avahi_timeval_diff(const GTimeVal *a, const GTimeVal *b) {
- g_assert(a);
- g_assert(b);
-
- if (avahi_timeval_compare(a, b) < 0)
- return avahi_timeval_diff(b, a);
-
- return ((glong) a->tv_sec - b->tv_sec)*1000000 + a->tv_usec - b->tv_usec;
-}
-
-
-gint avahi_set_cloexec(gint fd) {
- gint n;
-
- g_assert(fd >= 0);
-
- if ((n = fcntl(fd, F_GETFD)) < 0)
- return -1;
-
- if (n & FD_CLOEXEC)
- return 0;
-
- return fcntl(fd, F_SETFD, n|FD_CLOEXEC);
-}
-
-gint avahi_set_nonblock(gint fd) {
- gint n;
-
- g_assert(fd >= 0);
-
- if ((n = fcntl(fd, F_GETFL)) < 0)
- return -1;
-
- if (n & O_NONBLOCK)
- return 0;
-
- return fcntl(fd, F_SETFL, n|O_NONBLOCK);
-}
-
-gint avahi_wait_for_write(gint fd) {
- fd_set fds;
- gint r;
-
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
-
- if ((r = select(fd+1, NULL, &fds, NULL, NULL)) < 0) {
- g_message("select() failed: %s", strerror(errno));
-
- return -1;
+ if (size <= 0) {
+ *r = 0;
+ return r;
}
-
- g_assert(r > 0);
-
- return 0;
-}
-
-GTimeVal *avahi_elapse_time(GTimeVal *tv, guint msec, guint jitter) {
- g_assert(tv);
-
- g_get_current_time(tv);
-
- if (msec)
- g_time_val_add(tv, msec*1000);
-
- if (jitter)
- g_time_val_add(tv, g_random_int_range(0, jitter) * 1000);
-
- return tv;
-}
-
-gint avahi_age(const GTimeVal *a) {
- GTimeVal now;
-
- g_assert(a);
-
- g_get_current_time(&now);
- return avahi_timeval_diff(&now, a);
-}
-
-/* Read the first label from string *name, unescape "\" and write it to dest */
-gchar *avahi_unescape_label(const gchar **name, gchar *dest, guint size) {
- guint i = 0;
- gchar *d;
-
- g_assert(dest);
- g_assert(size > 0);
- g_assert(name);
-
- if (!**name)
- return NULL;
-
- d = dest;
-
- for (;;) {
- if (i >= size)
- return NULL;
-
- if (**name == '.') {
- (*name)++;
- break;
- }
-
- if (**name == 0)
+ for (i = 0; i < size; i++) {
+ if (l < 3)
break;
-
- if (**name == '\\') {
- (*name) ++;
-
- if (**name == 0)
- break;
- }
-
- *(d++) = *((*name) ++);
- i++;
- }
-
- g_assert(i < size);
-
- *d = 0;
-
- return dest;
-}
-
-/* Escape "\" and ".", append \0 */
-gchar *avahi_escape_label(const guint8* src, guint src_length, gchar **ret_name, guint *ret_size) {
- gchar *r;
- g_assert(src);
- g_assert(ret_name);
- g_assert(*ret_name);
- g_assert(ret_size);
- g_assert(*ret_size > 0);
+ *(t++) = hex[*mac >> 4];
+ *(t++) = hex[*mac & 0xF];
+ *(t++) = ':';
- r = *ret_name;
-
- while (src_length > 0) {
- if (*src == '.' || *src == '\\') {
- if (*ret_size < 3)
- return NULL;
-
- *((*ret_name) ++) = '\\';
- (*ret_size) --;
- }
+ l -= 3;
- if (*ret_size < 2)
- return NULL;
-
- *((*ret_name)++) = *src;
- (*ret_size) --;
-
- src_length --;
- src++;
+ mac++;
}
- **ret_name = 0;
+ if (t > r)
+ *(t-1) = 0;
+ else
+ *r = 0;
return r;
}
-static gint utf8_strcasecmp(const gchar *a, const gchar *b) {
- gchar *ta, *tb;
- gint r;
-
- g_assert(a);
- g_assert(b);
+char *avahi_strup(char *s) {
+ char *c;
+ assert(s);
- ta = g_utf8_casefold(a, -1);
- tb = g_utf8_casefold(b, -1);
- r = g_utf8_collate(ta, tb);
- g_free(ta);
- g_free(tb);
+ for (c = s; *c; c++)
+ *c = (char) toupper(*c);
- return r;
+ return s;
}
-gboolean avahi_domain_equal(const gchar *a, const gchar *b) {
- g_assert(a);
- g_assert(b);
-
- if (a == b)
- return TRUE;
-
- for (;;) {
- gchar ca[65], cb[65], *pa, *pb;
-
- pa = avahi_unescape_label(&a, ca, sizeof(ca));
- pb = avahi_unescape_label(&b, cb, sizeof(cb));
+char *avahi_strdown(char *s) {
+ char *c;
+ assert(s);
- if (!pa && !pb)
- return TRUE;
- else if ((pa && !pb) || (!pa && pb))
- return FALSE;
-
- if (utf8_strcasecmp(pa, pb))
- return FALSE;
- }
-
- return TRUE;
-}
-
-gint avahi_binary_domain_cmp(const gchar *a, const gchar *b) {
- g_assert(a);
- g_assert(b);
-
- if (a == b)
- return 0;
-
- for (;;) {
- gchar ca[65], cb[65], *pa, *pb;
- gint r;
-
- pa = avahi_unescape_label(&a, ca, sizeof(ca));
- pb = avahi_unescape_label(&b, cb, sizeof(cb));
-
- if (!pa && !pb)
- return 0;
- else if (pa && !pb)
- return 1;
- else if (!pa && pb)
- return -1;
-
- if ((r = strcmp(pa, pb)))
- return r;
- }
-}
+ for (c = s; *c; c++)
+ *c = (char) tolower(*c);
-void avahi_hexdump(gconstpointer p, guint size) {
- const guint8 *c = p;
- g_assert(p);
-
- printf("Dumping %u bytes from %p:\n", size, p);
-
- while (size > 0) {
- guint i;
-
- for (i = 0; i < 16; i++) {
- if (i < size)
- printf("%02x ", c[i]);
- else
- printf(" ");
- }
-
- for (i = 0; i < 16; i++) {
- if (i < size)
- printf("%c", c[i] >= 32 && c[i] < 127 ? c[i] : '.');
- else
- printf(" ");
- }
-
- printf("\n");
-
- c += 16;
-
- if (size <= 16)
- break;
-
- size -= 16;
- }
-}
-
-gint avahi_domain_hash(const gchar *s) {
- guint hash = 0;
-
- for (;;) {
- gchar c[65], *n, *m;
-
- if (!avahi_unescape_label(&s, c, sizeof(c)))
- return hash;
-
- if (!c[0])
- continue;
-
- n = g_utf8_normalize(c, -1, G_NORMALIZE_DEFAULT);
- m = g_utf8_strdown(n, -1);
-
- hash += g_str_hash(m);
-
- g_free(m);
- g_free(n);
- }
+ return s;
}
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