X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/6b2b839cfda8ebf34bbf9d820718f60154b42871..8894244cb8ad92569a1cbe9854ba3a7b97102e20:/slstatus.c?ds=sidebyside diff --git a/slstatus.c b/slstatus.c index 7af2f04..b34ea30 100644 --- a/slstatus.c +++ b/slstatus.c @@ -1,5 +1,6 @@ /* See LICENSE file for copyright and license details. */ +/* global libraries */ #include #include #include @@ -9,233 +10,90 @@ #include #include +/* local libraries */ #include "config.h" -char *smprintf(char *fmt, ...); - +/* functions */ void setstatus(char *str); - -char *wifi_signal(); char *battery(); -char *cpu_usage(); char *cpu_temperature(); +char *cpu_usage(); +char *datetime(); char *ram_usage(); +char *smprintf(char *fmt, ...); char *volume(); -char *datetime(); +char *wifi_signal(); +/* global variables */ static Display *dpy; -/* smprintf function */ -char * -smprintf(char *fmt, ...) -{ - va_list fmtargs; - char *ret; - int len; - - va_start(fmtargs, fmt); - len = vsnprintf(NULL, 0, fmt, fmtargs); - va_end(fmtargs); - - ret = malloc(++len); - if (ret == NULL) { - fprintf(stderr, "Malloc error."); - exit(1); - } - - va_start(fmtargs, fmt); - vsnprintf(ret, len, fmt, fmtargs); - va_end(fmtargs); - - return ret; -} - /* set statusbar (WM_NAME) */ void setstatus(char *str) { - XStoreName(dpy, DefaultRootWindow(dpy), str); - XSync(dpy, False); -} - -/* alsa volume percentage */ -char * -volume() -{ - int mute = 0; - long vol = 0, max = 0, min = 0; - - /* get volume from alsa */ - snd_mixer_t *handle; - snd_mixer_elem_t *pcm_mixer, *mas_mixer; - snd_mixer_selem_id_t *vol_info, *mute_info; - snd_mixer_open(&handle, 0); - snd_mixer_attach(handle, soundcard); - snd_mixer_selem_register(handle, NULL, NULL); - snd_mixer_load(handle); - snd_mixer_selem_id_malloc(&vol_info); - snd_mixer_selem_id_malloc(&mute_info); - snd_mixer_selem_id_set_name(vol_info, channel); - snd_mixer_selem_id_set_name(mute_info, channel); - pcm_mixer = snd_mixer_find_selem(handle, vol_info); - mas_mixer = snd_mixer_find_selem(handle, mute_info); - snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, - &min, &max); - snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, - SND_MIXER_SCHN_MONO, &vol); - snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, - &mute); - if (vol_info) - snd_mixer_selem_id_free(vol_info); - if (mute_info) - snd_mixer_selem_id_free(mute_info); - if (handle) - snd_mixer_close(handle); - - /* return the string (mute) */ - if (!mute) - return "mute"; - else - return smprintf("%d%%", (vol * 100) / max); -} - -/* cpu temperature */ -char * -cpu_temperature() -{ - int temperature; - FILE *fp; - - /* open temperature file */ - if (!(fp = fopen(tempfile, "r"))) { - fprintf(stderr, "Could not open temperature file.\n"); - exit(1); - } - - /* extract temperature */ - fscanf(fp, "%d", &temperature); - - /* close temperature file */ - fclose(fp); - - /* return temperature in degrees */ - return smprintf("%d°C", temperature / 1000); -} - -/* wifi percentage */ -char * -wifi_signal() -{ - int bufsize = 255; - int strength; - char buf[bufsize]; - char *datastart; - char path_start[16] = "/sys/class/net/"; - char path_end[11] = "/operstate"; - char path[32]; - char status[5]; - FILE *fp; - - /* generate the path name */ - strcat(path, path_start); - strcat(path, wificard); - strcat(path, path_end); - - /* open wifi file */ - if(!(fp = fopen(path, "r"))) { - fprintf(stderr, "Error opening wifi operstate file."); - exit(1); - } - - /* read the status */ - fgets(status, 5, fp); - - /* close wifi file */ - fclose(fp); - - /* check if interface down */ - if(strcmp(status, "up\n") != 0){ - return "n/a"; - } - - /* open wifi file */ - if (!(fp = fopen("/proc/net/wireless", "r"))) { - fprintf(stderr, "Error opening wireless file."); - exit(1); - } - - /* extract the signal strength */ - fgets(buf, bufsize, fp); - fgets(buf, bufsize, fp); - fgets(buf, bufsize, fp); - 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 */ - fclose(fp); - - /* return strength in percent */ - return smprintf("%d%%", strength); + XStoreName(dpy, DefaultRootWindow(dpy), str); + XSync(dpy, False); } /* battery percentage */ char * battery() { - int batt_now, batt_full, batt_perc; - FILE *fp; + int battery_now, battery_full, battery_perc; + FILE *fp; /* open battery now file */ - if (!(fp = fopen(batterynowfile, "r"))) { + if (!(fp = fopen(batterynowfile, "r"))) { fprintf(stderr, "Error opening battery file."); exit(1); } /* read value */ - fscanf(fp, "%i", &batt_now); + fscanf(fp, "%i", &battery_now); /* close battery now file */ - fclose(fp); - + fclose(fp); + /* open battery full file */ - if (!(fp = fopen(batteryfullfile, "r"))) { + if (!(fp = fopen(batteryfullfile, "r"))) { fprintf(stderr, "Error opening battery file."); exit(1); } /* read value */ - fscanf(fp, "%i", &batt_full); + fscanf(fp, "%i", &battery_full); /* close battery full file */ - fclose(fp); + fclose(fp); /* calculate percent */ - batt_perc = batt_now / (batt_full / 100); + battery_perc = battery_now / (battery_full / 100); /* return batt_perc as string */ - return smprintf("%d%%", batt_perc); + return smprintf("%d%%", battery_perc); } -/* date and time */ +/* cpu temperature */ char * -datetime() +cpu_temperature() { - time_t tm; - size_t bufsize = 19; - char *buf = malloc(bufsize); + int temperature; + FILE *fp; - /* get time in format */ - time(&tm); - if(!strftime(buf, bufsize, timeformat, localtime(&tm))) { - fprintf(stderr, "Strftime failed.\n"); - exit(1); - } + /* open temperature file */ + if (!(fp = fopen(tempfile, "r"))) { + fprintf(stderr, "Could not open temperature file.\n"); + exit(1); + } - /* return time */ - return buf; + /* extract temperature */ + fscanf(fp, "%d", &temperature); + + /* close temperature file */ + fclose(fp); + + /* return temperature in degrees */ + return smprintf("%d°C", temperature / 1000); } /* cpu percentage */ @@ -247,7 +105,7 @@ cpu_usage() FILE *fp; /* open stat file */ - if (!(fp = fopen("/proc/stat","r"))) { + if (!(fp = fopen("/proc/stat","r"))) { fprintf(stderr, "Error opening stat file."); exit(1); } @@ -262,7 +120,7 @@ cpu_usage() sleep(1); /* open stat file */ - if (!(fp = fopen("/proc/stat","r"))) { + if (!(fp = fopen("/proc/stat","r"))) { fprintf(stderr, "Error opening stat file."); exit(1); } @@ -280,6 +138,25 @@ cpu_usage() return smprintf("%d%%", cpu_perc); } +/* date and time */ +char * +datetime() +{ + time_t tm; + size_t bufsize = 19; + char *buf = malloc(bufsize); + + /* get time in format */ + time(&tm); + if(!strftime(buf, bufsize, timeformat, localtime(&tm))) { + fprintf(stderr, "Strftime failed.\n"); + exit(1); + } + + /* return time */ + return buf; +} + /* ram percentage */ char * ram_usage() @@ -289,7 +166,7 @@ ram_usage() FILE *fp; /* open meminfo file */ - if (!(fp = fopen("/proc/meminfo", "r"))) { + if (!(fp = fopen("/proc/meminfo", "r"))) { fprintf(stderr, "Error opening meminfo file."); exit(1); } @@ -309,6 +186,133 @@ ram_usage() return smprintf("%d%%",ram_perc); } +/* smprintf function */ +char * +smprintf(char *fmt, ...) +{ + va_list fmtargs; + char *ret; + int len; + + va_start(fmtargs, fmt); + len = vsnprintf(NULL, 0, fmt, fmtargs); + va_end(fmtargs); + + ret = malloc(++len); + if (ret == NULL) { + fprintf(stderr, "Malloc error."); + exit(1); + } + + va_start(fmtargs, fmt); + vsnprintf(ret, len, fmt, fmtargs); + va_end(fmtargs); + + return ret; +} + +/* alsa volume percentage */ +char * +volume() +{ + int mute = 0; + long vol = 0, max = 0, min = 0; + + /* get volume from alsa */ + snd_mixer_t *handle; + snd_mixer_elem_t *pcm_mixer, *mas_mixer; + snd_mixer_selem_id_t *vol_info, *mute_info; + snd_mixer_open(&handle, 0); + snd_mixer_attach(handle, soundcard); + snd_mixer_selem_register(handle, NULL, NULL); + snd_mixer_load(handle); + snd_mixer_selem_id_malloc(&vol_info); + snd_mixer_selem_id_malloc(&mute_info); + snd_mixer_selem_id_set_name(vol_info, channel); + snd_mixer_selem_id_set_name(mute_info, channel); + pcm_mixer = snd_mixer_find_selem(handle, vol_info); + mas_mixer = snd_mixer_find_selem(handle, mute_info); + snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, &min, &max); + snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, SND_MIXER_SCHN_MONO, &vol); + snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute); + if (vol_info) + snd_mixer_selem_id_free(vol_info); + if (mute_info) + snd_mixer_selem_id_free(mute_info); + if (handle) + snd_mixer_close(handle); + + /* return the string (mute) */ + if (!mute) + return smprintf("mute"); + else + return smprintf("%d%%", (vol * 100) / max); +} + +/* wifi percentage */ +char * +wifi_signal() +{ + int bufsize = 255; + int strength; + char buf[bufsize]; + char *datastart; + char path_start[16] = "/sys/class/net/"; + char path_end[11] = "/operstate"; + char path[32]; + char status[5]; + char needle[sizeof wificard + 1]; + FILE *fp; + + /* generate the path name */ + + memset(path, 0, sizeof path); + strcat(path, path_start); + strcat(path, wificard); + strcat(path, path_end); + + /* open wifi file */ + if(!(fp = fopen(path, "r"))) { + fprintf(stderr, "Error opening wifi operstate file."); + exit(1); + } + + /* read the status */ + fgets(status, 5, fp); + + /* close wifi file */ + fclose(fp); + + /* check if interface down */ + if(strcmp(status, "up\n") != 0){ + return "n/a"; + } + + /* open wifi file */ + if (!(fp = fopen("/proc/net/wireless", "r"))) { + fprintf(stderr, "Error opening wireless file."); + exit(1); + } + + /* extract the signal strength */ + 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); + } + + /* close wifi file */ + fclose(fp); + + /* return strength in percent */ + return smprintf("%d%%", strength); +} + +/* main function */ int main() { @@ -320,15 +324,37 @@ main() exit(1); } - /* return status every second */ - for (;;) { - sprintf(status, FORMATSTRING, ARGUMENTS); - setstatus(status); - } + char *pWifi_signal = NULL; + char *pBattery = NULL; + char *pCpu_usage = NULL; + char *pCpu_temperature = NULL; + char *pRam_usage = NULL; + char *pVolume = NULL; + char *pDatetime = NULL; + + /* return status every second */ + for (;;) { + pWifi_signal = wifi_signal(); + pBattery = battery(); + pCpu_usage = cpu_usage(); + pCpu_temperature = cpu_temperature(); + pRam_usage = ram_usage(); + pVolume = volume(); + pDatetime = datetime(); + sprintf(status, FORMATSTRING, ARGUMENTS); + setstatus(status); + free(pWifi_signal); + free(pBattery); + free(pCpu_usage); + free(pCpu_temperature); + free(pRam_usage); + free(pVolume); + free(pDatetime); + } /* close display */ XCloseDisplay(dpy); /* exit successfully */ - return 0; + return 0; }