added wifi essid

This commit is contained in:
Aaron Marcher 2016-08-15 14:43:29 +02:00 committed by Aaron Marcher (drkhsh)
parent 4170970c85
commit 093f39df23
4 changed files with 46 additions and 3 deletions

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@ -20,7 +20,7 @@ The following information is included:
- ram numbers (free ram, percentage, total ram and used ram)
- temperature
- volume percentage (alsa)
- wifi percentage
- wifi percentage and essid
Multiple entries per function are supported and everything can be reordered and customized via the C header file config.h (similar to DWM).

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@ -32,7 +32,8 @@ static unsigned int update_interval = 1;
- uid (uid of current user) [argument: NULL]
- username (username of current user) [argument: NULL]
- vol_perc (alsa volume and mute status in percent) [argument: soundcard]
- wifi_perc (wifi signal in percent) [argument: wifi card interface name] */
- wifi_perc (wifi signal in percent) [argument: wifi card interface name]
- wifi_essid (wifi essid) [argument: wifi card interface name] */
static const struct arg args[] = {
/* function format argument */
{ wifi_perc, "wifi %4s | ", "wlp3s0" },

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@ -6,6 +6,7 @@
#include <fcntl.h>
#include <ifaddrs.h>
#include <limits.h>
#include <linux/wireless.h>
#include <locale.h>
#include <netdb.h>
#include <pwd.h>
@ -13,10 +14,11 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xlib.h>
@ -666,6 +668,45 @@ wifi_perc(const char *wificard)
return smprintf("%d%%", strength);
}
/* wifi essid */
char *
wifi_essid(const char *wificard)
{
char *id = malloc(IW_ESSID_MAX_SIZE+1);
if (id == NULL) {
fprintf(stderr, "Cannot get ESSID.");
return smprintf("n/a");
}
int sockfd;
struct iwreq wreq;
/* prepare */
memset(&wreq, 0, sizeof(struct iwreq));
wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
/* set the interface */
sprintf(wreq.ifr_name, wificard);
/* check */
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
fprintf(stderr, "Cannot open socket for interface: %s\n", wificard);
return smprintf("n/a");
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
fprintf(stderr, "Get ESSID ioctl failed for interface %s\n", wificard);
return smprintf("n/a");
}
/* return the essid */
if (strcmp((char *)wreq.u.essid.pointer, "") == 0) {
return smprintf("n/a");
}
else {
return smprintf("%s", (char *)wreq.u.essid.pointer);
}
}
/* main function */
int
main(void)

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@ -35,3 +35,4 @@ char *uid(const char*);
char *username(const char*);
char *vol_perc(const char *);
char *wifi_perc(const char *);
char *wifi_essid(const char *);