--- /dev/null
+/***
+ This file is part of catta.
+
+ catta 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.
+
+ catta 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 catta; 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 <string.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <catta/strlst.h>
+#include <catta/malloc.h>
+#include <catta/defs.h>
+
+CattaStringList*catta_string_list_add_anonymous(CattaStringList *l, size_t size) {
+ CattaStringList *n;
+
+ if (!(n = catta_malloc(sizeof(CattaStringList) + size)))
+ return NULL;
+
+ n->next = l;
+ n->size = size;
+
+ /* NUL terminate strings, just to make sure */
+ n->text[size] = 0;
+
+ return n;
+}
+
+CattaStringList *catta_string_list_add_arbitrary(CattaStringList *l, const uint8_t*text, size_t size) {
+ CattaStringList *n;
+
+ assert(size == 0 || text);
+
+ if (!(n = catta_string_list_add_anonymous(l, size)))
+ return NULL;
+
+ if (size > 0)
+ memcpy(n->text, text, size);
+
+ return n;
+}
+
+CattaStringList *catta_string_list_add(CattaStringList *l, const char *text) {
+ assert(text);
+
+ return catta_string_list_add_arbitrary(l, (const uint8_t*) text, strlen(text));
+}
+
+int catta_string_list_parse(const void* data, size_t size, CattaStringList **ret) {
+ const uint8_t *c;
+ CattaStringList *r = NULL;
+
+ assert(data);
+ assert(ret);
+
+ c = data;
+ while (size > 0) {
+ size_t k;
+
+ k = *(c++);
+ size--;
+
+ if (k > size)
+ goto fail; /* Overflow */
+
+ if (k > 0) { /* Ignore empty strings */
+ CattaStringList *n;
+
+ if (!(n = catta_string_list_add_arbitrary(r, c, k)))
+ goto fail; /* OOM */
+
+ r = n;
+ }
+
+ c += k;
+ size -= k;
+ }
+
+ *ret = r;
+
+ return 0;
+
+fail:
+ catta_string_list_free(r);
+ return -1;
+}
+
+void catta_string_list_free(CattaStringList *l) {
+ CattaStringList *n;
+
+ while (l) {
+ n = l->next;
+ catta_free(l);
+ l = n;
+ }
+}
+
+CattaStringList* catta_string_list_reverse(CattaStringList *l) {
+ CattaStringList *r = NULL, *n;
+
+ while (l) {
+ n = l->next;
+ l->next = r;
+ r = l;
+ l = n;
+ }
+
+ return r;
+}
+
+char* catta_string_list_to_string(CattaStringList *l) {
+ CattaStringList *n;
+ size_t s = 0;
+ char *t, *e;
+
+ for (n = l; n; n = n->next) {
+ if (n != l)
+ s ++;
+
+ s += n->size+2;
+ }
+
+ if (!(t = e = catta_new(char, s+1)))
+ return NULL;
+
+ l = catta_string_list_reverse(l);
+
+ for (n = l; n; n = n->next) {
+ if (n != l)
+ *(e++) = ' ';
+
+ *(e++) = '"';
+ strncpy(e, (char*) n->text, n->size);
+ e[n->size] = 0;
+ e = strchr(e, 0);
+ *(e++) = '"';
+
+ assert(e);
+ }
+
+ l = catta_string_list_reverse(l);
+
+ *e = 0;
+
+ return t;
+}
+
+size_t catta_string_list_serialize(CattaStringList *l, void *data, size_t size) {
+ size_t used = 0;
+
+ if (data) {
+ CattaStringList *n;
+ uint8_t *c;
+
+ l = catta_string_list_reverse(l);
+ c = data;
+
+ for (n = l; size > 1 && n; n = n->next) {
+ size_t k;
+
+ if ((k = n->size) == 0)
+ /* Skip empty strings */
+ continue;
+
+ if (k > 255)
+ /* Truncate strings at 255 characters */
+ k = 255;
+
+ if (k > size-1)
+ /* Make sure this string fits in */
+ k = size-1;
+
+ *(c++) = (uint8_t) k;
+ memcpy(c, n->text, k);
+ c += k;
+
+ used += 1 + k;
+ size -= 1 + k;
+ }
+
+ l = catta_string_list_reverse(l);
+
+ if (used == 0 && size > 0) {
+
+ /* Empty lists are treated specially. To comply with
+ * section 6.1 of the DNS-SD spec, we return a single
+ * empty string (i.e. a NUL byte)*/
+
+ *(uint8_t*) data = 0;
+ used = 1;
+ }
+
+ } else {
+ CattaStringList *n;
+
+ for (n = l; n; n = n->next) {
+ size_t k;
+
+ if ((k = n->size) == 0)
+ continue;
+
+ if (k > 255)
+ k = 255;
+
+ used += 1+k;
+ }
+
+ if (used == 0)
+ used = 1;
+ }
+
+ return used;
+}
+
+int catta_string_list_equal(const CattaStringList *a, const CattaStringList *b) {
+
+ for (;;) {
+ if (!a && !b)
+ return 1;
+
+ if (!a || !b)
+ return 0;
+
+ if (a->size != b->size)
+ return 0;
+
+ if (a->size != 0 && memcmp(a->text, b->text, a->size) != 0)
+ return 0;
+
+ a = a->next;
+ b = b->next;
+ }
+}
+
+CattaStringList *catta_string_list_add_many(CattaStringList *r, ...) {
+ va_list va;
+
+ va_start(va, r);
+ r = catta_string_list_add_many_va(r, va);
+ va_end(va);
+
+ return r;
+}
+
+CattaStringList *catta_string_list_add_many_va(CattaStringList *r, va_list va) {
+ const char *txt;
+
+ while ((txt = va_arg(va, const char*)))
+ r = catta_string_list_add(r, txt);
+
+ return r;
+}
+
+CattaStringList *catta_string_list_new(const char *txt, ...) {
+ va_list va;
+ CattaStringList *r = NULL;
+
+ if (txt) {
+ r = catta_string_list_add(r, txt);
+
+ va_start(va, txt);
+ r = catta_string_list_add_many_va(r, va);
+ va_end(va);
+ }
+
+ return r;
+}
+
+CattaStringList *catta_string_list_new_va(va_list va) {
+ return catta_string_list_add_many_va(NULL, va);
+}
+
+CattaStringList *catta_string_list_copy(const CattaStringList *l) {
+ CattaStringList *r = NULL;
+
+ for (; l; l = l->next)
+ if (!(r = catta_string_list_add_arbitrary(r, l->text, l->size))) {
+ catta_string_list_free(r);
+ return NULL;
+ }
+
+ return catta_string_list_reverse(r);
+}
+
+CattaStringList *catta_string_list_new_from_array(const char *array[], int length) {
+ CattaStringList *r = NULL;
+ int i;
+
+ assert(array);
+
+ for (i = 0; length >= 0 ? i < length : !!array[i]; i++)
+ r = catta_string_list_add(r, array[i]);
+
+ return r;
+}
+
+unsigned catta_string_list_length(const CattaStringList *l) {
+ unsigned n = 0;
+
+ for (; l; l = l->next)
+ n++;
+
+ return n;
+}
+
+CattaStringList *catta_string_list_add_vprintf(CattaStringList *l, const char *format, va_list va) {
+ size_t len = 80;
+ CattaStringList *r;
+
+ assert(format);
+
+ if (!(r = catta_malloc(sizeof(CattaStringList) + len)))
+ return NULL;
+
+ for (;;) {
+ int n;
+ CattaStringList *nr;
+ va_list va2;
+
+ va_copy(va2, va);
+ n = vsnprintf((char*) r->text, len, format, va2);
+ va_end(va2);
+
+ if (n >= 0 && n < (int) len)
+ break;
+
+ if (n >= 0)
+ len = n+1;
+ else
+ len *= 2;
+
+ if (!(nr = catta_realloc(r, sizeof(CattaStringList) + len))) {
+ catta_free(r);
+ return NULL;
+ }
+
+ r = nr;
+ }
+
+ r->next = l;
+ r->size = strlen((char*) r->text);
+
+ return r;
+}
+
+CattaStringList *catta_string_list_add_printf(CattaStringList *l, const char *format, ...) {
+ va_list va;
+
+ assert(format);
+
+ va_start(va, format);
+ l = catta_string_list_add_vprintf(l, format, va);
+ va_end(va);
+
+ return l;
+}
+
+CattaStringList *catta_string_list_find(CattaStringList *l, const char *key) {
+ size_t n;
+
+ assert(key);
+ n = strlen(key);
+
+ for (; l; l = l->next) {
+ if (strcasecmp((char*) l->text, key) == 0)
+ return l;
+
+ if (strncasecmp((char*) l->text, key, n) == 0 && l->text[n] == '=')
+ return l;
+ }
+
+ return NULL;
+}
+
+CattaStringList *catta_string_list_add_pair(CattaStringList *l, const char *key, const char *value) {
+ assert(key);
+
+ if (value)
+ return catta_string_list_add_printf(l, "%s=%s", key, value);
+ else
+ return catta_string_list_add(l, key);
+}
+
+CattaStringList *catta_string_list_add_pair_arbitrary(CattaStringList *l, const char *key, const uint8_t *value, size_t size) {
+ size_t n;
+ assert(key);
+
+ if (!value)
+ return catta_string_list_add(l, key);
+
+ n = strlen(key);
+
+ if (!(l = catta_string_list_add_anonymous(l, n + 1 + size)))
+ return NULL;
+
+ memcpy(l->text, key, n);
+ l->text[n] = '=';
+ memcpy(l->text + n + 1, value, size);
+
+ return l;
+}
+
+int catta_string_list_get_pair(CattaStringList *l, char **key, char **value, size_t *size) {
+ char *e;
+
+ assert(l);
+
+ if (!(e = memchr(l->text, '=', l->size))) {
+
+ if (key)
+ if (!(*key = catta_strdup((char*) l->text)))
+ return -1;
+
+ if (value)
+ *value = NULL;
+
+ if (size)
+ *size = 0;
+
+ } else {
+ size_t n;
+
+ if (key)
+ if (!(*key = catta_strndup((char*) l->text, e - (char *) l->text)))
+ return -1;
+
+ e++; /* Advance after '=' */
+
+ n = l->size - (e - (char*) l->text);
+
+ if (value) {
+
+ if (!(*value = catta_memdup(e, n+1))) {
+ if (key)
+ catta_free(*key);
+ return -1;
+ }
+
+ (*value)[n] = 0;
+ }
+
+ if (size)
+ *size = n;
+ }
+
+ return 0;
+}
+
+CattaStringList *catta_string_list_get_next(CattaStringList *l) {
+ assert(l);
+ return l->next;
+}
+
+uint8_t *catta_string_list_get_text(CattaStringList *l) {
+ assert(l);
+ return l->text;
+}
+
+size_t catta_string_list_get_size(CattaStringList *l) {
+ assert(l);
+ return l->size;
+}
+
+uint32_t catta_string_list_get_service_cookie(CattaStringList *l) {
+ CattaStringList *f;
+ char *value = NULL, *end = NULL;
+ uint32_t ret;
+
+ if (!(f = catta_string_list_find(l, CATTA_SERVICE_COOKIE)))
+ return CATTA_SERVICE_COOKIE_INVALID;
+
+ if (catta_string_list_get_pair(f, NULL, &value, NULL) < 0 || !value)
+ return CATTA_SERVICE_COOKIE_INVALID;
+
+ ret = (uint32_t) strtoll(value, &end, 0);
+
+ if (*value && end && *end != 0) {
+ catta_free(value);
+ return CATTA_SERVICE_COOKIE_INVALID;
+ }
+
+ catta_free(value);
+
+ return ret;
+}
projects / catta / blobdiff