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gluon-mesh-vpn-core: fix two more missing NULL checks

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read_stdout can return NULL and thus the return value need to be checked
prior to accessing it.

Signed-off-by: David Bauer <mail@david-bauer.net>
This commit is contained in:
David Bauer 2021-06-14 21:08:50 +02:00
parent 7e1e9fe2bd
commit 344f8a47db
1 changed files with 4 additions and 1 deletions
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5
package/gluon-mesh-vpn-core/src/respondd.c
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@ -110,6 +110,9 @@ static struct json_object * get_mesh_vpn_enabled() {
int enabled = -1; int enabled = -1;
char *line = read_stdout("exec lua -e 'print(require(\"gluon.mesh-vpn\").enabled())'"); char *line = read_stdout("exec lua -e 'print(require(\"gluon.mesh-vpn\").enabled())'");
if (!line)
return NULL;
if (!strcmp(line, "true")) if (!strcmp(line, "true"))
enabled = 1; enabled = 1;
if (!strcmp(line, "false")) if (!strcmp(line, "false"))
@ -126,7 +129,7 @@ static struct json_object * get_mesh_vpn_enabled() {
static struct json_object * get_active_vpn_provider() { static struct json_object * get_active_vpn_provider() {
char *line = read_stdout("exec lua -e 'name, _ = require(\"gluon.mesh-vpn\").get_active_provider(); print(name)'"); char *line = read_stdout("exec lua -e 'name, _ = require(\"gluon.mesh-vpn\").get_active_provider(); print(name)'");
if (!strcmp(line, "nil")) { if (line && !strcmp(line, "nil")) {
free(line); free(line);
return NULL; return NULL;
} }