int strv_push(char ***l, char *value) {
char **c;
- unsigned n;
+ unsigned n, m;
if (!value)
return 0;
n = strv_length(*l);
- c = realloc(*l, sizeof(char*) * (n + 2));
+
+ /* increase and check for overflow */
+ m = n + 2;
+ if (m < n)
+ return -ENOMEM;
+
+ c = realloc_multiply(*l, sizeof(char*), m);
if (!c)
return -ENOMEM;
int strv_push_prepend(char ***l, char *value) {
char **c;
- unsigned n, i;
+ unsigned n, m, i;
if (!value)
return 0;
n = strv_length(*l);
- c = new(char*, n + 2);
+
+ /* increase and check for overflow */
+ m = n + 2;
+ if (m < n)
+ return -ENOMEM;
+
+ c = new(char*, m);
if (!c)
return -ENOMEM;