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Merge pull request #3 from Vlaix/master 

Fixed broken wifi
This commit is contained in:
Aaron Marcher 2016-03-09 10:53:27 +01:00
parent 16d01e8ded 3b6f51f8eb
commit ff6c029dba
1 changed files with 228 additions and 223 deletions
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slstatus.c
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@ -31,328 +31,333 @@ static Display *dpy;
void void
setstatus(char *str) setstatus(char *str)
{ {
XStoreName(dpy, DefaultRootWindow(dpy), str); XStoreName(dpy, DefaultRootWindow(dpy), str);
XSync(dpy, False); XSync(dpy, False);
} }
/* battery percentage */ /* battery percentage */
char * char *
battery() battery()
{ {
int battery_now, battery_full, battery_perc; int battery_now, battery_full, battery_perc;
FILE *fp; FILE *fp;
/* open battery now file */ /* open battery now file */
if (!(fp = fopen(batterynowfile, "r"))) { if (!(fp = fopen(batterynowfile, "r"))) {
fprintf(stderr, "Error opening battery file."); fprintf(stderr, "Error opening battery file.");
exit(1); exit(1);
} }
/* read value */ /* read value */
fscanf(fp, "%i", &battery_now); fscanf(fp, "%i", &battery_now);
/* close battery now file */ /* close battery now file */
fclose(fp); fclose(fp);
/* open battery full file */ /* open battery full file */
if (!(fp = fopen(batteryfullfile, "r"))) { if (!(fp = fopen(batteryfullfile, "r"))) {
fprintf(stderr, "Error opening battery file."); fprintf(stderr, "Error opening battery file.");
exit(1); exit(1);
} }
/* read value */ /* read value */
fscanf(fp, "%i", &battery_full); fscanf(fp, "%i", &battery_full);
/* close battery full file */ /* close battery full file */
fclose(fp); fclose(fp);
/* calculate percent */ /* calculate percent */
battery_perc = battery_now / (battery_full / 100); battery_perc = battery_now / (battery_full / 100);
/* return batt_perc as string */ /* return batt_perc as string */
return smprintf("%d%%", battery_perc); return smprintf("%d%%", battery_perc);
} }
/* cpu temperature */ /* cpu temperature */
char * char *
cpu_temperature() cpu_temperature()
{ {
int temperature; int temperature;
FILE *fp; FILE *fp;
/* open temperature file */ /* open temperature file */
if (!(fp = fopen(tempfile, "r"))) { if (!(fp = fopen(tempfile, "r"))) {
fprintf(stderr, "Could not open temperature file.\n"); fprintf(stderr, "Could not open temperature file.\n");
exit(1); exit(1);
} }
/* extract temperature */ /* extract temperature */
fscanf(fp, "%d", &temperature); fscanf(fp, "%d", &temperature);
/* close temperature file */ /* close temperature file */
fclose(fp); fclose(fp);
/* return temperature in degrees */ /* return temperature in degrees */
return smprintf("%d°C", temperature / 1000); return smprintf("%d°C", temperature / 1000);
} }
/* cpu percentage */ /* cpu percentage */
char * char *
cpu_usage() cpu_usage()
{ {
int cpu_perc; int cpu_perc;
long double a[4], b[4]; long double a[4], b[4];
FILE *fp; FILE *fp;
/* open stat file */ /* open stat file */
if (!(fp = fopen("/proc/stat","r"))) { if (!(fp = fopen("/proc/stat","r"))) {
fprintf(stderr, "Error opening stat file."); fprintf(stderr, "Error opening stat file.");
exit(1); exit(1);
} }
/* read values */ /* read values */
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]); fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
/* close stat file */ /* close stat file */
fclose(fp); fclose(fp);
/* wait a second (for avg values) */ /* wait a second (for avg values) */
sleep(1); sleep(1);
/* open stat file */ /* open stat file */
if (!(fp = fopen("/proc/stat","r"))) { if (!(fp = fopen("/proc/stat","r"))) {
fprintf(stderr, "Error opening stat file."); fprintf(stderr, "Error opening stat file.");
exit(1); exit(1);
} }
/* read values */ /* read values */
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]); fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
/* close stat file */ /* close stat file */
fclose(fp); fclose(fp);
/* calculate avg in this second */ /* calculate avg in this second */
cpu_perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3])); cpu_perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3]));
/* return cpu_perc as string */ /* return cpu_perc as string */
return smprintf("%d%%", cpu_perc); return smprintf("%d%%", cpu_perc);
} }
/* date and time */ /* date and time */
char * char *
datetime() datetime()
{ {
time_t tm; time_t tm;
size_t bufsize = 19; size_t bufsize = 19;
char *buf = malloc(bufsize); char *buf = malloc(bufsize);
/* get time in format */ /* get time in format */
time(&tm); time(&tm);
if(!strftime(buf, bufsize, timeformat, localtime(&tm))) { if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
fprintf(stderr, "Strftime failed.\n"); fprintf(stderr, "Strftime failed.\n");
exit(1); exit(1);
} }
/* return time */ /* return time */
return buf; return buf;
} }
/* ram percentage */ /* ram percentage */
char * char *
ram_usage() ram_usage()
{ {
int ram_perc; int ram_perc;
long total, free, available; long total, free, available;
FILE *fp; FILE *fp;
/* open meminfo file */ /* open meminfo file */
if (!(fp = fopen("/proc/meminfo", "r"))) { if (!(fp = fopen("/proc/meminfo", "r"))) {
fprintf(stderr, "Error opening meminfo file."); fprintf(stderr, "Error opening meminfo file.");
exit(1); exit(1);
} }
/* read the values */ /* read the values */
fscanf(fp, "MemTotal: %ld kB\n", &total); fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free); fscanf(fp, "MemFree: %ld kB\n", &free);
fscanf(fp, "MemAvailable: %ld kB\n", &available); fscanf(fp, "MemAvailable: %ld kB\n", &available);
/* close meminfo file */ /* close meminfo file */
fclose(fp); fclose(fp);
/* calculate percentage */ /* calculate percentage */
ram_perc = 100 * (total - available) / total; ram_perc = 100 * (total - available) / total;
/* return ram_perc as string */ /* return ram_perc as string */
return smprintf("%d%%",ram_perc); return smprintf("%d%%",ram_perc);
} }
/* smprintf function */ /* smprintf function */
char * char *
smprintf(char *fmt, ...) smprintf(char *fmt, ...)
{ {
va_list fmtargs; va_list fmtargs;
char *ret; char *ret;
int len; int len;
va_start(fmtargs, fmt); va_start(fmtargs, fmt);
len = vsnprintf(NULL, 0, fmt, fmtargs); len = vsnprintf(NULL, 0, fmt, fmtargs);
va_end(fmtargs); va_end(fmtargs);
ret = malloc(++len); ret = malloc(++len);
if (ret == NULL) { if (ret == NULL) {
fprintf(stderr, "Malloc error."); fprintf(stderr, "Malloc error.");
exit(1); exit(1);
} }
va_start(fmtargs, fmt); va_start(fmtargs, fmt);
vsnprintf(ret, len, fmt, fmtargs); vsnprintf(ret, len, fmt, fmtargs);
va_end(fmtargs); va_end(fmtargs);
return ret; return ret;
} }
/* alsa volume percentage */ /* alsa volume percentage */
char * char *
volume() volume()
{ {
int mute = 0; int mute = 0;
long vol = 0, max = 0, min = 0; long vol = 0, max = 0, min = 0;
/* get volume from alsa */ /* get volume from alsa */
snd_mixer_t *handle; snd_mixer_t *handle;
snd_mixer_elem_t *pcm_mixer, *mas_mixer; snd_mixer_elem_t *pcm_mixer, *mas_mixer;
snd_mixer_selem_id_t *vol_info, *mute_info; snd_mixer_selem_id_t *vol_info, *mute_info;
snd_mixer_open(&handle, 0); snd_mixer_open(&handle, 0);
snd_mixer_attach(handle, soundcard); snd_mixer_attach(handle, soundcard);
snd_mixer_selem_register(handle, NULL, NULL); snd_mixer_selem_register(handle, NULL, NULL);
snd_mixer_load(handle); snd_mixer_load(handle);
snd_mixer_selem_id_malloc(&vol_info); snd_mixer_selem_id_malloc(&vol_info);
snd_mixer_selem_id_malloc(&mute_info); snd_mixer_selem_id_malloc(&mute_info);
snd_mixer_selem_id_set_name(vol_info, channel); snd_mixer_selem_id_set_name(vol_info, channel);
snd_mixer_selem_id_set_name(mute_info, channel); snd_mixer_selem_id_set_name(mute_info, channel);
pcm_mixer = snd_mixer_find_selem(handle, vol_info); pcm_mixer = snd_mixer_find_selem(handle, vol_info);
mas_mixer = snd_mixer_find_selem(handle, mute_info); mas_mixer = snd_mixer_find_selem(handle, mute_info);
snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer,
&min, &max); &min, &max);
snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer,
SND_MIXER_SCHN_MONO, &vol); SND_MIXER_SCHN_MONO, &vol);
snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO,
&mute); &mute);
if (vol_info) if (vol_info)
snd_mixer_selem_id_free(vol_info); snd_mixer_selem_id_free(vol_info);
if (mute_info) if (mute_info)
snd_mixer_selem_id_free(mute_info); snd_mixer_selem_id_free(mute_info);
if (handle) if (handle)
snd_mixer_close(handle); snd_mixer_close(handle);
/* return the string (mute) */ /* return the string (mute) */
if (!mute) if (!mute)
return smprintf("mute"); return smprintf("mute");
else else
return smprintf("%d%%", (vol * 100) / max); return smprintf("%d%%", (vol * 100) / max);
} }
/* wifi percentage */ /* wifi percentage */
char * char *
wifi_signal() wifi_signal()
{ {
int bufsize = 255; int bufsize = 255;
int strength; int strength;
char buf[bufsize]; char buf[bufsize];
char *datastart; char *datastart;
char path_start[16] = "/sys/class/net/"; char path_start[16] = "/sys/class/net/";
char path_end[11] = "/operstate"; char path_end[11] = "/operstate";
char path[32]; char path[32];
char status[5]; char status[5];
FILE *fp; char needle[sizeof wificard + 1];
FILE *fp;
/* generate the path name */ /* generate the path name */
strcat(path, path_start);
strcat(path, wificard);
strcat(path, path_end);
/* open wifi file */ memset(path, 0, sizeof path);
if(!(fp = fopen(path, "r"))) { strcat(path, path_start);
fprintf(stderr, "Error opening wifi operstate file."); strcat(path, wificard);
exit(1); strcat(path, path_end);
}
/* read the status */ /* open wifi file */
fgets(status, 5, fp); if(!(fp = fopen(path, "r"))) {
fprintf(stderr, "Error opening wifi operstate file.");
exit(1);
}
/* close wifi file */ /* read the status */
fclose(fp); fgets(status, 5, fp);
/* check if interface down */ /* close wifi file */
if(strcmp(status, "up\n") != 0){ fclose(fp);
return "n/a";
}
/* open wifi file */ /* check if interface down */
if (!(fp = fopen("/proc/net/wireless", "r"))) { if(strcmp(status, "up\n") != 0){
fprintf(stderr, "Error opening wireless file."); return "n/a";
exit(1); }
}
/* extract the signal strength */ /* open wifi file */
fgets(buf, bufsize, fp); if (!(fp = fopen("/proc/net/wireless", "r"))) {
fgets(buf, bufsize, fp); fprintf(stderr, "Error opening wireless file.");
fgets(buf, bufsize, fp); exit(1);
if ((datastart = strstr(buf, "wlp3s0:")) != NULL) { }
datastart = strstr(buf, ":");
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
}
/* close wifi file */ /* extract the signal strength */
fclose(fp); strcpy(needle, wificard);
strcat(needle, ":");
fgets(buf, bufsize, fp);
fgets(buf, bufsize, fp);
fgets(buf, bufsize, fp);
if ((datastart = strstr(buf, needle)) != NULL) {
datastart = strstr(buf, ":");
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
}
/* return strength in percent */ /* close wifi file */
return smprintf("%d%%", strength); fclose(fp);
/* return strength in percent */
return smprintf("%d%%", strength);
} }
/* main function */ /* main function */
int int
main() main()
{ {
char status[1024]; char status[1024];
/* open display */ /* open display */
if (!(dpy = XOpenDisplay(0x0))) { if (!(dpy = XOpenDisplay(0x0))) {
fprintf(stderr, "Cannot open display!\n"); fprintf(stderr, "Cannot open display!\n");
exit(1); exit(1);
} }
char *pWifi_signal = NULL; char *pWifi_signal = NULL;
char *pBattery = NULL; char *pBattery = NULL;
char *pCpu_usage = NULL; char *pCpu_usage = NULL;
char *pCpu_temperature = NULL; char *pCpu_temperature = NULL;
char *pRam_usage = NULL; char *pRam_usage = NULL;
char *pVolume = NULL; char *pVolume = NULL;
char *pDatetime = NULL; char *pDatetime = NULL;
/* return status every second */ /* return status every second */
for (;;) { for (;;) {
pWifi_signal = wifi_signal(); pWifi_signal = wifi_signal();
pBattery = battery(); pBattery = battery();
pCpu_usage = cpu_usage(); pCpu_usage = cpu_usage();
pCpu_temperature = cpu_temperature(); pCpu_temperature = cpu_temperature();
pRam_usage = ram_usage(); pRam_usage = ram_usage();
pVolume = volume(); pVolume = volume();
pDatetime = datetime(); pDatetime = datetime();
sprintf(status, FORMATSTRING, ARGUMENTS); sprintf(status, FORMATSTRING, ARGUMENTS);
setstatus(status); setstatus(status);
free(pWifi_signal); free(pWifi_signal);
free(pBattery); free(pBattery);
free(pCpu_usage); free(pCpu_usage);
free(pCpu_temperature); free(pCpu_temperature);
free(pRam_usage); free(pRam_usage);
free(pVolume); free(pVolume);
free(pDatetime); free(pDatetime);
} }
/* close display */ /* close display */
XCloseDisplay(dpy); XCloseDisplay(dpy);
/* exit successfully */ /* exit successfully */
return 0; return 0;
} }