diff options
Diffstat (limited to 'wifi.c')
-rw-r--r-- | wifi.c | 85 |
1 files changed, 0 insertions, 85 deletions
@@ -1,85 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <err.h> -#include <ifaddrs.h> -#include <linux/wireless.h> -#include <sys/socket.h> -#include <stdio.h> -#include <limits.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include "util.h" - -const char * -wifi_perc(const char *iface) -{ - int i, perc; - char *p, *datastart; - char path[PATH_MAX]; - char status[5]; - FILE *fp; - - snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate"); - fp = fopen(path, "r"); - if (fp == NULL) { - warn("Failed to open file %s", path); - return NULL; - } - p = fgets(status, 5, fp); - fclose(fp); - if(!p || strcmp(status, "up\n") != 0) { - return NULL; - } - - fp = fopen("/proc/net/wireless", "r"); - if (fp == NULL) { - warn("Failed to open file /proc/net/wireless"); - return NULL; - } - - for (i = 0; i < 3; i++) { - if (!(p = fgets(buf, sizeof(buf) - 1, fp))) - break; - } - fclose(fp); - if (i < 2 || !p) - return NULL; - - if ((datastart = strstr(buf, iface)) == NULL) - return NULL; - - datastart = (datastart+(strlen(iface)+1)); - sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc); - - return bprintf("%d", perc); -} - -const char * -wifi_essid(const char *iface) -{ - static char id[IW_ESSID_MAX_SIZE+1]; - int sockfd = socket(AF_INET, SOCK_DGRAM, 0); - struct iwreq wreq; - - 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 (sockfd == -1) { - warn("Failed to get ESSID for interface %s", iface); - return NULL; - } - wreq.u.essid.pointer = id; - if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) { - warn("Failed to get ESSID for interface %s", iface); - return NULL; - } - - close(sockfd); - - if (strcmp(id, "") == 0) - return NULL; - else - return id; -} |