/* global libraries */
#include <alsa/asoundlib.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <ifaddrs.h>
+#include <limits.h>
+#include <locale.h>
+#include <netdb.h>
+#include <pwd.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/statvfs.h>
+#include <sys/socket.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xlib.h>
-/* local libraries */
+/* local headers */
+#include "slstatus.h"
#include "config.h"
-/* functions */
-void setstatus(char *str);
-char *battery();
-char *cpu_temperature();
-char *cpu_usage();
-char *datetime();
-char *ram_usage();
-char *smprintf(char *fmt, ...);
-char *volume();
-char *wifi_signal();
-
-/* global variables */
-static Display *dpy;
-
-/* set statusbar (WM_NAME) */
+/* set statusbar */
void
-setstatus(char *str)
+setstatus(const char *str)
{
+ /* set WM_NAME via X11 */
XStoreName(dpy, DefaultRootWindow(dpy), str);
XSync(dpy, False);
}
+/* smprintf function */
+char *
+smprintf(const char *fmt, ...)
+{
+ va_list fmtargs;
+ char *ret = NULL;
+
+ va_start(fmtargs, fmt);
+ if (vasprintf(&ret, fmt, fmtargs) < 0)
+ return NULL;
+ va_end(fmtargs);
+
+ return ret;
+}
+
/* battery percentage */
char *
-battery()
+battery_perc(const char *battery)
{
- int battery_now, battery_full, battery_perc;
+ int now, full, perc;
+ char batterynowfile[64] = "";
+ char batteryfullfile[64] = "";
FILE *fp;
+ /* generate battery nowfile path */
+ strcat(batterynowfile, batterypath);
+ strcat(batterynowfile, battery);
+ strcat(batterynowfile, "/");
+ strcat(batterynowfile, batterynow);
+
+ /* generate battery fullfile path */
+ strcat(batteryfullfile, batterypath);
+ strcat(batteryfullfile, battery);
+ strcat(batteryfullfile, "/");
+ strcat(batteryfullfile, batteryfull);
+
/* open battery now file */
if (!(fp = fopen(batterynowfile, "r"))) {
- fprintf(stderr, "Error opening battery file.");
- exit(1);
+ fprintf(stderr, "Error opening battery file.%s",batterynowfile);
+ return smprintf("n/a");
}
/* read value */
- fscanf(fp, "%i", &battery_now);
+ fscanf(fp, "%i", &now);
/* close battery now file */
fclose(fp);
/* open battery full file */
if (!(fp = fopen(batteryfullfile, "r"))) {
fprintf(stderr, "Error opening battery file.");
- exit(1);
+ return smprintf("n/a");
}
/* read value */
- fscanf(fp, "%i", &battery_full);
+ fscanf(fp, "%i", &full);
/* close battery full file */
fclose(fp);
/* calculate percent */
- battery_perc = battery_now / (battery_full / 100);
+ perc = now / (full / 100);
- /* return batt_perc as string */
- return smprintf("%d%%", battery_perc);
-}
-
-/* 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);
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
/* cpu percentage */
char *
-cpu_usage()
+cpu_perc(const char *null)
{
- int cpu_perc;
+ int perc;
long double a[4], b[4];
FILE *fp;
/* open stat file */
if (!(fp = fopen("/proc/stat","r"))) {
fprintf(stderr, "Error opening stat file.");
- exit(1);
+ return smprintf("n/a");
}
/* read values */
/* open stat file */
if (!(fp = fopen("/proc/stat","r"))) {
fprintf(stderr, "Error opening stat file.");
- exit(1);
+ return smprintf("n/a");
}
/* read values */
fclose(fp);
/* 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]));
+ 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 smprintf("%d%%", cpu_perc);
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
/* date and time */
char *
-datetime()
+datetime(const char *timeformat)
{
time_t tm;
- size_t bufsize = 19;
+ size_t bufsize = 64;
char *buf = malloc(bufsize);
/* get time in format */
time(&tm);
+ setlocale(LC_TIME, "");
if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
+ setlocale(LC_TIME, "C");
fprintf(stderr, "Strftime failed.\n");
- exit(1);
+ return smprintf("n/a");
}
+ setlocale(LC_TIME, "C");
/* return time */
- return buf;
+ char *ret = smprintf("%s", buf);
+ free(buf);
+ return ret;
+}
+
+/* disk free */
+char *
+disk_free(const char *mountpoint)
+{
+ struct statvfs fs;
+
+ /* try to open mountpoint */
+ if (statvfs(mountpoint, &fs) < 0) {
+ fprintf(stderr, "Could not get filesystem info.\n");
+ return smprintf("n/a");
+ }
+
+ /* return free */
+ return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
+}
+
+/* disk usage percentage */
+char *
+disk_perc(const char *mountpoint)
+{
+ int perc = 0;
+ struct statvfs fs;
+
+ /* try to open mountpoint */
+ if (statvfs(mountpoint, &fs) < 0) {
+ fprintf(stderr, "Could not get filesystem info.\n");
+ return smprintf("n/a");
+ }
+
+ /* calculate percent */
+ perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
+
+ /* return perc */
+ return smprintf("%d%%", perc);
+}
+
+/* disk total */
+char *
+disk_total(const char *mountpoint)
+{
+ struct statvfs fs;
+
+ /* try to open mountpoint */
+ if (statvfs(mountpoint, &fs) < 0) {
+ fprintf(stderr, "Could not get filesystem info.\n");
+ return smprintf("n/a");
+ }
+
+ /* return total */
+ return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
+}
+
+/* disk used */
+char *
+disk_used(const char *mountpoint)
+{
+ struct statvfs fs;
+
+ /* try to open mountpoint */
+ if (statvfs(mountpoint, &fs) < 0) {
+ fprintf(stderr, "Could not get filesystem info.\n");
+ return smprintf("n/a");
+ }
+
+ /* return used */
+ return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
+}
+
+/* entropy available */
+char *
+entropy(const char *null)
+{
+ int entropy = 0;
+ FILE *fp;
+
+ /* open entropy file */
+ if (!(fp = fopen("/proc/sys/kernel/random/entropy_avail", "r"))) {
+ fprintf(stderr, "Could not open entropy file.\n");
+ return smprintf("n/a");
+ }
+
+ /* extract entropy */
+ fscanf(fp, "%d", &entropy);
+
+ /* close entropy file */
+ fclose(fp);
+
+ /* return entropy */
+ return smprintf("%d", entropy);
+}
+
+/* gid */
+char *
+gid(const char *null)
+{
+ gid_t gid;
+
+ if ((gid = getgid()) < 0) {
+ fprintf(stderr, "Could no get gid.");
+ return smprintf("n/a");
+ } else {
+ return smprintf("%d", gid);
+ }
+
+ return smprintf("n/a");
+}
+
+/* hostname */
+char *
+hostname(const char *null)
+{
+ char hostname[HOST_NAME_MAX];
+ FILE *fp;
+
+ /* open hostname file */
+ if (!(fp = fopen("/proc/sys/kernel/hostname", "r"))) {
+ fprintf(stderr, "Could not open hostname file.\n");
+ return smprintf("n/a");
+ }
+
+ /* extract hostname */
+ fscanf(fp, "%s\n", hostname);
+
+ /* close hostname file */
+ fclose(fp);
+
+ /* return entropy */
+ return smprintf("%s", hostname);
+}
+
+/* ip address */
+char *
+ip(const char *interface)
+{
+ struct ifaddrs *ifaddr, *ifa;
+ int s;
+ char host[NI_MAXHOST];
+
+ /* check if getting ip address works */
+ if (getifaddrs(&ifaddr) == -1)
+ {
+ fprintf(stderr, "Error getting IP address.");
+ return smprintf("n/a");
+ }
+
+ /* get the ip address */
+ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next)
+ {
+ if (ifa->ifa_addr == NULL)
+ continue;
+
+ s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+
+ if ((strcmp(ifa->ifa_name, interface) == 0) && (ifa->ifa_addr->sa_family == AF_INET))
+ {
+ if (s != 0)
+ {
+ fprintf(stderr, "Error getting IP address.");
+ return smprintf("n/a");
+ }
+ return smprintf("%s", host);
+ }
+ }
+
+ /* free the address */
+ freeifaddrs(ifaddr);
+
+ /* return n/a if nothing works */
+ return smprintf("n/a");
+}
+
+/* ram free */
+char *
+ram_free(const char *null)
+{
+ long free;
+ FILE *fp;
+
+ /* open meminfo file */
+ if (!(fp = fopen("/proc/meminfo", "r"))) {
+ fprintf(stderr, "Error opening meminfo file.");
+ return smprintf("n/a");
+ }
+
+ /* read the values */
+ fscanf(fp, "MemTotal: %*d kB\n");
+ fscanf(fp, "MemFree: %ld kB\n", &free);
+
+ /* close meminfo file */
+ fclose(fp);
+
+ /* return free ram as string */
+ return smprintf("%f", (float)free / 1024 / 1024);
}
/* ram percentage */
char *
-ram_usage()
+ram_perc(const char *null)
{
- int ram_perc;
- long total, free, available;
+ int perc;
+ long total, free, buffers, cached;
FILE *fp;
/* open meminfo file */
if (!(fp = fopen("/proc/meminfo", "r"))) {
fprintf(stderr, "Error opening meminfo file.");
- exit(1);
+ return smprintf("n/a");
}
/* read the values */
fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\n", &available);
+ fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
+ fscanf(fp, "Cached: %ld kB\n", &cached);
/* close meminfo file */
fclose(fp);
/* calculate percentage */
- ram_perc = 100 * (total - available) / total;
+ perc = 100 * ((total - free) - (buffers + cached)) / total;
- /* return ram_perc as string */
- return smprintf("%d%%",ram_perc);
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
-/* smprintf function */
+/* ram total */
char *
-smprintf(char *fmt, ...)
+ram_total(const char *null)
{
- va_list fmtargs;
- char *ret;
- int len;
+ long total;
+ FILE *fp;
- va_start(fmtargs, fmt);
- len = vsnprintf(NULL, 0, fmt, fmtargs);
- va_end(fmtargs);
+ /* open meminfo file */
+ if (!(fp = fopen("/proc/meminfo", "r"))) {
+ fprintf(stderr, "Error opening meminfo file.");
+ return smprintf("n/a");
+ }
- ret = malloc(++len);
- if (ret == NULL) {
- fprintf(stderr, "Malloc error.");
- exit(1);
+ /* read the values */
+ fscanf(fp, "MemTotal: %ld kB\n", &total);
+
+ /* close meminfo file */
+ fclose(fp);
+
+ /* return total ram as string */
+ return smprintf("%f", (float)total / 1024 / 1024);
+}
+
+/* ram used */
+char *
+ram_used(const char *null)
+{
+ long free, total, buffers, cached, used;
+ FILE *fp;
+
+ /* open meminfo file */
+ if (!(fp = fopen("/proc/meminfo", "r"))) {
+ fprintf(stderr, "Error opening meminfo file.");
+ return smprintf("n/a");
}
- va_start(fmtargs, fmt);
- vsnprintf(ret, len, fmt, fmtargs);
- va_end(fmtargs);
+ /* read the values */
+ fscanf(fp, "MemTotal: %ld kB\n", &total);
+ fscanf(fp, "MemFree: %ld kB\n", &free);
+ fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
+ fscanf(fp, "Cached: %ld kB\n", &cached);
- return ret;
+ /* close meminfo file */
+ fclose(fp);
+
+ /* calculate used */
+ used = total - free - buffers - cached;
+
+ /* return used ram as string */
+ return smprintf("%f", (float)used / 1024 / 1024);
+}
+
+/* temperature */
+char *
+temp(const char *file)
+{
+ int temperature;
+ FILE *fp;
+
+ /* open temperature file */
+ if (!(fp = fopen(file, "r"))) {
+ fprintf(stderr, "Could not open temperature file.\n");
+ return smprintf("n/a");
+ }
+
+ /* extract temperature */
+ fscanf(fp, "%d", &temperature);
+
+ /* close temperature file */
+ fclose(fp);
+
+ /* return temperature in degrees */
+ return smprintf("%d°C", temperature / 1000);
}
+/* username */
+char *
+username(const char *null)
+{
+ register struct passwd *pw;
+ register uid_t uid;
+
+ /* get the values */
+ uid = geteuid ();
+ pw = getpwuid (uid);
+
+ /* if it worked, return */
+ if (pw) {
+ return smprintf("%s", pw->pw_name);
+ }
+ else {
+ fprintf(stderr, "Could not get username.\n");
+ return smprintf("n/a");
+ }
+
+ return smprintf("n/a");
+}
+
+/* uid */
+char *
+uid(const char *null)
+{
+ register uid_t uid;
+
+ /* get the values */
+ uid = geteuid ();
+
+ /* if it worked, return */
+ if (uid) {
+ return smprintf("%d", uid);
+ }
+ else {
+ fprintf(stderr, "Could not get uid.\n");
+ return smprintf("n/a");
+ }
+
+ return smprintf("n/a");
+}
+
+
/* alsa volume percentage */
char *
-volume()
+vol_perc(const char *soundcard)
{
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_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);
+ 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)
/* return the string (mute) */
if (!mute)
- return "mute";
+ return smprintf("mute");
else
return smprintf("%d%%", (vol * 100) / max);
}
/* wifi percentage */
char *
-wifi_signal()
+wifi_perc(const char *wificard)
{
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 path[64];
char status[5];
+ char needle[sizeof wificard + 1];
FILE *fp;
/* generate the path name */
- strcat(path, path_start);
+ memset(path, 0, sizeof path);
+ strcat(path, "/sys/class/net/");
strcat(path, wificard);
- strcat(path, path_end);
+ strcat(path, "/operstate");
/* open wifi file */
if(!(fp = fopen(path, "r"))) {
fprintf(stderr, "Error opening wifi operstate file.");
- exit(1);
+ return smprintf("n/a");
}
/* read the status */
/* check if interface down */
if(strcmp(status, "up\n") != 0){
- return "n/a";
+ return smprintf("n/a");
}
/* open wifi file */
if (!(fp = fopen("/proc/net/wireless", "r"))) {
fprintf(stderr, "Error opening wireless file.");
- exit(1);
+ return smprintf("n/a");
}
/* 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, "wlp3s0:")) != NULL) {
+ if ((datastart = strstr(buf, needle)) != NULL) {
datastart = strstr(buf, ":");
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
}
int
main()
{
- char status[1024];
+ char status_string[1024];
+ struct arg argument;
- /* open display */
+ /* try to open display */
if (!(dpy = XOpenDisplay(0x0))) {
fprintf(stderr, "Cannot open display!\n");
exit(1);
}
- /* return status every second */
+ /* return status every interval */
for (;;) {
- sprintf(status, FORMATSTRING, ARGUMENTS);
- setstatus(status);
+ /* clear the string */
+ memset(status_string, 0, sizeof(status_string));
+
+ /* generate status_string */
+ for (size_t i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
+ argument = args[i];
+ char *res = argument.func(argument.args);
+ char *element = smprintf(argument.format, res);
+ strcat(status_string, element);
+ free(res);
+ free(element);
+ }
+
+ /* return the statusbar */
+ setstatus(status_string);
+
+ /* wait, "update_interval - 1" because of get_cpu_usage() which uses 1 second */
+ sleep(update_interval -1);
}
/* close display */