char path[64];
char status[5];
char needle[strlen(wificard)+2];
- FILE *fp = fopen(path, "r");
+ FILE *fp;
strlcpy(path, "/sys/class/net/", sizeof(path));
strlcat(path, wificard, sizeof(path));
strlcat(path, "/operstate", sizeof(path));
+ fp = fopen(path, "r");
+
if(fp == NULL) {
fprintf(stderr, "Error opening wifi operstate file: %s\n",
strerror(errno));