diff options
Diffstat (limited to 'components/wifi.c')
| -rw-r--r-- | components/wifi.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/components/wifi.c b/components/wifi.c index 591f6ad..b3e1723 100644 --- a/components/wifi.c +++ b/components/wifi.c @@ -23,8 +23,11 @@ char status[5]; FILE *fp; - snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, - "/operstate"); + if (esnprintf(path, sizeof(path), + "/sys/class/net/%s/operstate", + iface) < 0) { + return NULL; + } if (!(fp = fopen(path, "r"))) { warn("fopen '%s':", path); return NULL; @@ -69,7 +72,10 @@ memset(&wreq, 0, sizeof(struct iwreq)); wreq.u.essid.length = IW_ESSID_MAX_SIZE+1; - snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface); + if (esnprintf(wreq.ifr_name, sizeof(wreq.ifr_name), + "%s", iface) < 0) { + return NULL; + } if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { warn("socket 'AF_INET':"); |