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/***
This file is part of PulseAudio.
Copyright 2008 Colin Guthrie
Copyright 2007 Lennart Poettering
PulseAudio 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.
PulseAudio 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 PulseAudio; 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 <pulse/xmalloc.h>
#include <pulsecore/hashmap.h>
#include <pulsecore/strbuf.h>
#include <pulsecore/core-util.h>
#include "headerlist.h"
struct header {
char *key;
void *value;
size_t nbytes;
};
#define MAKE_HASHMAP(p) ((pa_hashmap*) (p))
#define MAKE_HEADERLIST(p) ((pa_headerlist*) (p))
static void header_free(struct header *hdr) {
pa_assert(hdr);
pa_xfree(hdr->key);
pa_xfree(hdr->value);
pa_xfree(hdr);
}
pa_headerlist* pa_headerlist_new(void) {
return MAKE_HEADERLIST(pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func));
}
void pa_headerlist_free(pa_headerlist* p) {
struct header *hdr;
while ((hdr = pa_hashmap_steal_first(MAKE_HASHMAP(p))))
header_free(hdr);
pa_hashmap_free(MAKE_HASHMAP(p), NULL, NULL);
}
int pa_headerlist_puts(pa_headerlist *p, const char *key, const char *value) {
struct header *hdr;
pa_bool_t add = FALSE;
pa_assert(p);
pa_assert(key);
if (!(hdr = pa_hashmap_get(MAKE_HASHMAP(p), key))) {
hdr = pa_xnew(struct header, 1);
hdr->key = pa_xstrdup(key);
add = TRUE;
} else
pa_xfree(hdr->value);
hdr->value = pa_xstrdup(value);
hdr->nbytes = strlen(value)+1;
if (add)
pa_hashmap_put(MAKE_HASHMAP(p), hdr->key, hdr);
return 0;
}
int pa_headerlist_putsappend(pa_headerlist *p, const char *key, const char *value) {
struct header *hdr;
pa_bool_t add = FALSE;
pa_assert(p);
pa_assert(key);
if (!(hdr = pa_hashmap_get(MAKE_HASHMAP(p), key))) {
hdr = pa_xnew(struct header, 1);
hdr->key = pa_xstrdup(key);
hdr->value = pa_xstrdup(value);
add = TRUE;
} else {
void *newval = pa_sprintf_malloc("%s%s", (char*)hdr->value, value);
pa_xfree(hdr->value);
hdr->value = newval;
}
hdr->nbytes = strlen(hdr->value)+1;
if (add)
pa_hashmap_put(MAKE_HASHMAP(p), hdr->key, hdr);
return 0;
}
const char *pa_headerlist_gets(pa_headerlist *p, const char *key) {
struct header *hdr;
pa_assert(p);
pa_assert(key);
if (!(hdr = pa_hashmap_get(MAKE_HASHMAP(p), key)))
return NULL;
if (hdr->nbytes <= 0)
return NULL;
if (((char*) hdr->value)[hdr->nbytes-1] != 0)
return NULL;
if (strlen((char*) hdr->value) != hdr->nbytes-1)
return NULL;
return (char*) hdr->value;
}
int pa_headerlist_remove(pa_headerlist *p, const char *key) {
struct header *hdr;
pa_assert(p);
pa_assert(key);
if (!(hdr = pa_hashmap_remove(MAKE_HASHMAP(p), key)))
return -1;
header_free(hdr);
return 0;
}
const char *pa_headerlist_iterate(pa_headerlist *p, void **state) {
struct header *hdr;
if (!(hdr = pa_hashmap_iterate(MAKE_HASHMAP(p), state, NULL)))
return NULL;
return hdr->key;
}
char *pa_headerlist_to_string(pa_headerlist *p) {
const char *key;
void *state = NULL;
pa_strbuf *buf;
pa_assert(p);
buf = pa_strbuf_new();
while ((key = pa_headerlist_iterate(p, &state))) {
const char *v;
if ((v = pa_headerlist_gets(p, key)))
pa_strbuf_printf(buf, "%s: %s\r\n", key, v);
}
return pa_strbuf_tostring_free(buf);
}
int pa_headerlist_contains(pa_headerlist *p, const char *key) {
pa_assert(p);
pa_assert(key);
if (!(pa_hashmap_get(MAKE_HASHMAP(p), key)))
return 0;
return 1;
}
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