/* global libraries */
#include <alsa/asoundlib.h>
+#include <arpa/inet.h>
#include <fcntl.h>
+#include <ifaddrs.h>
+#include <limits.h>
+#include <linux/wireless.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/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>
/* battery percentage */
char *
-get_battery(const char *battery)
+battery_perc(const char *battery)
{
int now, full, perc;
char batterynowfile[64] = "";
return smprintf("%d%%", perc);
}
-/* cpu temperature */
-char *
-get_cpu_temperature(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);
-}
-
/* cpu percentage */
char *
-get_cpu_usage(const char *null)
+cpu_perc(const char *null)
{
int perc;
long double a[4], b[4];
/* date and time */
char *
-get_datetime(const char *timeformat)
+datetime(const char *timeformat)
{
time_t tm;
size_t bufsize = 64;
char *buf = malloc(bufsize);
+ if (buf == NULL) {
+ fprintf(stderr, "Failed to get date/time");
+ return smprintf("n/a");
+ }
/* get time in format */
time(&tm);
setlocale(LC_TIME, "");
if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
setlocale(LC_TIME, "C");
+ free(buf);
fprintf(stderr, "Strftime failed.\n");
return smprintf("n/a");
}
setlocale(LC_TIME, "C");
/* return time */
- return smprintf("%s", 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 *
-get_diskusage(const char *mountpoint)
+disk_perc(const char *mountpoint)
{
int perc = 0;
struct statvfs fs;
}
/* calculate percent */
- perc = 100 * (1.0f - ((float)fs.f_bavail / (float)fs.f_blocks));
+ 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 *
-get_ram_usage(const char *null)
+ram_perc(const char *null)
{
int perc;
long total, free, buffers, cached;
return smprintf("%d%%", perc);
}
+/* ram total */
+char *
+ram_total(const char *null)
+{
+ long total;
+ 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: %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");
+ }
+
+ /* 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);
+
+ /* close meminfo file */
+ fclose(fp);
+
+ /* calculate used */
+ used = total - free - buffers - cached;
+
+ /* return used ram as string */
+ return smprintf("%f", (float)used / 1024 / 1024);
+}
+
+/* custom shell command */
+char *
+run_command(const char* command)
+{
+ int good;
+ FILE *fp;
+ char buffer[64];
+
+ /* try to open the command output */
+ if (!(fp = popen(command, "r"))) {
+ fprintf(stderr, "Could not get command output for: %s.\n", command);
+ return smprintf("n/a");
+ }
+
+ /* get command output text, save it to buffer */
+ fgets(buffer, sizeof(buffer)-1, fp);
+
+ /* close it again */
+ pclose(fp);
+
+ /* add nullchar at the end */
+ for (int i = 0 ; i != sizeof(buffer) ; i++) {
+ if (buffer[i] == '\0') {
+ good = 1;
+ break;
+ }
+ }
+ if (good) {
+ buffer[strlen(buffer) - 1] = '\0';
+ }
+
+ /* return the output */
+ return smprintf("%s", buffer);
+}
+
+/* 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 *
-get_volume(const char *soundcard)
+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_t *vol_info, *mute_info;
+
+ /* open everything */
snd_mixer_open(&handle, 0);
snd_mixer_attach(handle, soundcard);
snd_mixer_selem_register(handle, NULL, NULL);
snd_mixer_load(handle);
+
+ /* prepare everything */
snd_mixer_selem_id_malloc(&vol_info);
snd_mixer_selem_id_malloc(&mute_info);
+ /* check */
+ if (vol_info == NULL || mute_info == NULL) {
+ fprintf(stderr, "Could not get alsa volume");
+ return smprintf("n/a");
+ }
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);
+
+ /* get the 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)
+
+ /* clean up */
+ if (vol_info) {
snd_mixer_selem_id_free(vol_info);
- if (mute_info)
+ }
+ if (mute_info) {
snd_mixer_selem_id_free(mute_info);
- if (handle)
+ }
+ if (handle) {
snd_mixer_close(handle);
+ }
/* return the string (mute) */
- if (!mute)
+ if (!mute) {
return smprintf("mute");
- else
+ }
+ else {
return smprintf("%d%%", (vol * 100) / max);
+ }
}
/* wifi percentage */
char *
-get_wifi_signal(const char *wificard)
+wifi_perc(const char *wificard)
{
int bufsize = 255;
int strength;
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()
+main(void)
{
char status_string[1024];
struct arg argument;
/* return status every interval */
for (;;) {
/* clear the string */
- strcpy(status_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);
+ if (element == NULL) {
+ element = smprintf("n/a");
+ fprintf(stderr, "Failed to format output.");
+ }
strcat(status_string, element);
+ free(res);
+ free(element);
}
/* return the statusbar */