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Free old eap_user_file data on configuration change

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This fixes a memory leak if hostapd eap_user_file parameter is modified.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2015-01-30 00:54:40 +02:00 committed by Jouni Malinen
parent 3b86e9d52c
commit 4437f8fc77
1 changed files with 14 additions and 2 deletions
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16
hostapd/config_file.c
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@ -216,7 +216,7 @@ static int hostapd_config_read_eap_user(const char *fname,
FILE *f; FILE *f;
char buf[512], *pos, *start, *pos2; char buf[512], *pos, *start, *pos2;
int line = 0, ret = 0, num_methods; int line = 0, ret = 0, num_methods;
struct hostapd_eap_user *user = NULL, *tail = NULL; struct hostapd_eap_user *user = NULL, *tail = NULL, *new_user = NULL;
if (!fname) if (!fname)
return 0; return 0;
@ -494,7 +494,7 @@ static int hostapd_config_read_eap_user(const char *fname,
done: done:
if (tail == NULL) { if (tail == NULL) {
tail = conf->eap_user = user; tail = new_user = user;
} else { } else {
tail->next = user; tail->next = user;
tail = user; tail = user;
@ -510,6 +510,18 @@ static int hostapd_config_read_eap_user(const char *fname,
fclose(f); fclose(f);
if (ret == 0) {
user = conf->eap_user;
while (user) {
struct hostapd_eap_user *prev;
prev = user;
user = user->next;
hostapd_config_free_eap_user(prev);
}
conf->eap_user = new_user;
}
return ret; return ret;
} }
#endif /* EAP_SERVER */ #endif /* EAP_SERVER */