Commit 29e62e20 authored by Antonin Décimo's avatar Antonin Décimo Committed by Juliusz Chroboczek

Fix potential memory leaks.

parent f8c629a7
......@@ -326,20 +326,24 @@ get_interface_type(int c, int *type_r, gnc_t gnc, void *closure)
static int
gethex(int c, unsigned char **value_r, int *len_r, gnc_t gnc, void *closure)
{
char *t;
char *t = NULL;
unsigned char *value;
int len, rc;
c = getword(c, &t, gnc, closure);
if(c < -1)
if(c < -1) {
free(t);
return c;
}
len = strlen(t);
if(len % 2 != 0) {
free(t);
return -2;
}
value = malloc(len / 2);
if(value == NULL)
if(value == NULL) {
free(t);
return -2;
}
rc = fromhex(value, t, len);
free(t);
......@@ -714,7 +718,7 @@ static int
parse_ifconf(int c, gnc_t gnc, void *closure,
struct interface_conf **if_conf_return)
{
char *token;
char *token = NULL;
struct interface_conf *if_conf;
if_conf = calloc(1, sizeof(struct interface_conf));
......@@ -734,6 +738,7 @@ parse_ifconf(int c, gnc_t gnc, void *closure,
return parse_anonymous_ifconf(c, gnc, closure, if_conf, if_conf_return);
error:
free(token);
free(if_conf);
return -2;
}
......@@ -763,10 +768,12 @@ parse_key(int c, gnc_t gnc, void *closure, struct key **key_return)
goto error;
}
} else if(strcmp(token, "type") == 0) {
char *auth_type;
char *auth_type = NULL;
c = getword(c, &auth_type, gnc, closure);
if(c < -1 || auth_type == NULL)
if(c < -1 || auth_type == NULL) {
free(auth_type);
goto error;
}
if(strcmp(auth_type, "none") == 0) {
key->type = AUTH_TYPE_NONE;
} else if(strcmp(auth_type, "sha256") == 0) {
......@@ -1078,7 +1085,7 @@ static int
parse_config_line(int c, gnc_t gnc, void *closure,
int *action_return, const char **message_return)
{
char *token;
char *token = NULL;
if(action_return)
*action_return = CONFIG_ACTION_DONE;
if(message_return)
......@@ -1089,8 +1096,10 @@ parse_config_line(int c, gnc_t gnc, void *closure,
return skip_to_eol(c, gnc, closure);
c = getword(c, &token, gnc, closure);
if(c < -1)
if(c < -1) {
free(token);
return c;
}
/* Directives allowed in read-only mode */
if(strcmp(token, "quit") == 0) {
......@@ -1172,17 +1181,20 @@ parse_config_line(int c, gnc_t gnc, void *closure,
free(if_conf);
}
} else if(strcmp(token, "flush") == 0) {
char *token2;
char *token2 = NULL;
c = skip_whitespace(c, gnc, closure);
c = getword(c, &token2, gnc, closure);
if(c < -1)
if(c < -1) {
free(token2);
goto fail;
}
if(strcmp(token2, "interface") == 0) {
char *ifname;
char *ifname = NULL;
int rc;
c = getword(c, &ifname, gnc, closure);
c = skip_eol(c, gnc, closure);
if(c < -1) {
free(ifname);
free(token2);
goto fail;
}
......@@ -1211,10 +1223,10 @@ parse_config_line(int c, gnc_t gnc, void *closure,
} else if(strcmp(token, "key") == 0) {
struct key *key = NULL;
c = parse_key(c, gnc, closure, &key);
if(c < -1)
goto fail;
if(key->id == NULL)
if(c < -1 || key == NULL || key->id == NULL) {
free(key);
goto fail;
}
switch(key->type) {
case AUTH_TYPE_SHA256:
if(key->len != 32) {
......
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