Split tokenizers into tag and tag_list and fix a few memory leaks

This commit is contained in:
Alex D. 2021-02-15 15:57:29 +00:00
parent fd6dc5e0ea
commit 1979f7aa77
Signed by: caskd
GPG Key ID: F92BA85F61F4C173
8 changed files with 64 additions and 53 deletions

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@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.16)
project(
uIRC
VERSION 0.1
VERSION 0.2
DESCRIPTION "Simple and lightweight IRC protocol helper"
LANGUAGES C
)
@ -50,7 +50,7 @@ if (BUILD_IRCV3)
set(UIRC_SOURCE
${UIRC_SOURCE}
src/assemblers/tag.c
src/tokenizers/tags.c
src/tokenizers/tag.c
)
endif()
if (BUILD_VALIDATORS)

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@ -40,16 +40,7 @@ uirc_malloc_user(const char* nick, const char* user, const char* real)
return NULL;
}
llist_t*
uirc_malloc_tag(llist_t* prev, const char* key, const char* value)
{
llist_t* tmp = NULL;
if ((tmp = allocate_linked_list_elem(sizeof(IRC_Tag))) == NULL) return NULL;
if (prev != NULL) prev->next = tmp;
((IRC_Tag*) tmp->content)->key = malloc_string(key, strlen(key));
((IRC_Tag*) tmp->content)->value = malloc_string(value, strlen(value));
return tmp;
}
// TODO: uirc_malloc_tag_list uirc_malloc_tag
void
uirc_free_tag(IRC_Tag* t)

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@ -26,7 +26,6 @@
#define UIRC_GUARD_PUBLIC_MEMORY
IRC_User* uirc_malloc_user(const char* nick, const char* user, const char* real);
llist_t* uirc_malloc_tag(llist_t* prev, const char* key, const char* value);
void uirc_free_tag(IRC_Tag* t);
void uirc_free_user(IRC_User* u);
void uirc_free_message(IRC_Message* m);

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@ -16,7 +16,7 @@
* along with uIRC. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../../tokenizers/tokenizers.h" // Tok_tags()
#include "../../tokenizers/tokenizers.h" // uirc_tokenizer_*()
#include "../common.h" // expect()
#include <assert.h> // assert()
@ -33,7 +33,7 @@ int
main(void)
{
IRC_Tag* cur = NULL;
llist_t* tags = uirc_tokenizer_tags("+" key1 "=" val1 ";" key2 ";" key3 "=" val3);
llist_t* tags = uirc_tokenizer_tag_list("+" key1 "=" val1 ";" key2 ";" key3 "=" val3);
ERRIFNULL(tags, "Tags weren't tokenized successfully.\n");
cur = tags->content;

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@ -16,9 +16,9 @@
* along with uIRC. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../memory/memory.h" // Free_IRC_Message()
#include "../memory/memory.h" // uirc_memory_*()
#include "../types.h" // IRC_Message
#include "tokenizers.h" // Tok_mesg() Tok_user() Tok_tags()
#include "tokenizers.h" // uirc_tokenizer_*()
#include <assert.h> // assert()
#include <corelibs/stringext.h> // malloc_string() strtok_mr()
@ -31,12 +31,12 @@ static void free_ctx(IRC_Message* msg, char* str);
static void skip_spaces(char** addr);
IRC_Message*
uirc_tokenizer_message(const char* s)
uirc_tokenizer_message(const char* str)
{
assert(s != NULL);
assert(str != NULL);
IRC_Message* m = malloc(sizeof(IRC_Message));
char* const ws = malloc_string(s, strlen(s));
char* const ws = malloc_string(str, strlen(str));
char* p = ws;
if (ws == NULL || m == NULL) {
free(ws);
@ -44,13 +44,13 @@ uirc_tokenizer_message(const char* s)
return NULL;
}
memset(m, 0, sizeof(IRC_Message));
strcpy(ws, s);
strcpy(ws, str);
#ifdef UIRC_FEATURE_IRCV3
if (*p == '@') {
p++;
const char* tmp = NULL;
if ((tmp = strtok_mr(&p, " ")) == NULL || (m->tag_list = uirc_tokenizer_tags(tmp)) == NULL) {
if ((tmp = strtok_mr(&p, " ")) == NULL || (m->tag_list = uirc_tokenizer_tag_list(tmp)) == NULL) {
free_ctx(m, ws);
return NULL;
}

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@ -27,42 +27,26 @@
#include <stdlib.h> // free()
#include <string.h> // strchr()
static void free_ctx(llist_t* list, char* s);
// TODO: Only tokenizer IRC_Tag and put the looping logic in uirc_tokenizer_message()
static void free_ctx(llist_t* list, IRC_Tag* t, char* s);
llist_t*
uirc_tokenizer_tags(const char* s)
uirc_tokenizer_tag_list(const char* str)
{
assert(s != NULL);
assert(str != NULL);
char* const ws = malloc_string(s, strlen(s));
char* const ws = malloc_string(str, strlen(str));
char * p = ws, *tmp;
llist_t * pl = NULL, *l = NULL;
if (ws == NULL) return NULL;
while ((tmp = strtok_mr(&p, ";")) != NULL) {
llist_t* cl;
if ((cl = allocate_linked_list_elem(sizeof(IRC_Tag))) == NULL) {
free_ctx(l, ws);
if ((cl = allocate_linked_list_elem(0)) == NULL) {
free_ctx(l, NULL, ws);
return NULL;
}
IRC_Tag* tag = (IRC_Tag*) cl->content;
char* ckey = tmp;
if (*tmp == '+') {
ckey++;
tag->clientbound = true;
}
char* cval = strchr(ckey, '=');
if (cval != NULL) {
*(cval++) = '\0';
if ((tag->value = malloc_string(cval, strlen(cval))) == NULL) {
free_ctx(l, ws);
return NULL;
}
}
if ((tag->key = malloc_string(ckey, strlen(ckey))) == NULL) {
free_ctx(l, ws);
if ((cl->content = uirc_tokenizer_tag(tmp)) == NULL) {
free_ctx(l, NULL, ws);
return NULL;
}
@ -71,17 +55,53 @@ uirc_tokenizer_tags(const char* s)
connect_linked_list_elem(pl, cl);
pl = cl;
}
free(ws);
return l;
}
IRC_Tag*
uirc_tokenizer_tag(const char* str)
{
assert(str != NULL);
char* const ws = malloc_string(str, strlen(str));
IRC_Tag* t = malloc(sizeof(IRC_Tag));
char* ckey = ws;
if (t == NULL || ws == NULL) {
free_ctx(NULL, t, ws);
return NULL;
}
if (*ws == '+') {
ckey++;
t->clientbound = true;
}
char* cval = strchr(ckey, '=');
if (cval != NULL) {
*(cval++) = '\0';
if ((t->value = malloc_string(cval, strlen(cval))) == NULL) {
free_ctx(NULL, t, ws);
return NULL;
}
}
if ((t->key = malloc_string(ckey, strlen(ckey))) == NULL) {
free_ctx(NULL, t, ws);
return NULL;
}
free(ws);
return t;
}
static void
free_ctx(llist_t* list, char* s)
free_ctx(llist_t* list, IRC_Tag* t, char* s)
{
for (llist_t* c = list; c != NULL;) {
llist_t* l = c;
c = c->next;
uirc_free_tag(l->content);
if (l->content != NULL) uirc_free_tag(l->content);
remove_linked_list_elem(l);
}
free(t);
free(s);
}

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@ -33,7 +33,8 @@
* This function parses IRCv3 tags according to the specification at
* \param[in] str String containing a IRC source with or without the ':' prefix
*/
llist_t* uirc_tokenizer_tags(const char* str);
llist_t* uirc_tokenizer_tag_list(const char* str);
IRC_Tag* uirc_tokenizer_tag(const char* str);
#endif /* UIRC_FEATURE_IRCV3 */
/*!

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@ -16,9 +16,9 @@
* along with uIRC. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../memory/memory.h" // Free_IRC_User()
#include "../types.h" // IRC_User
#include "tokenizers.h" // Tok_user()
#include "../memory/memory.h" // uirc_memory_*()
#include "../types.h" // IRC_Message
#include "tokenizers.h" // uirc_tokenizer_*()
#include <assert.h> // assert()
#include <corelibs/stringext.h> // malloc_string()