664 lines
14 KiB
C
664 lines
14 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
|
|
#include <alsa/asoundlib.h>
|
|
#include <fcntl.h>
|
|
#include <ifaddrs.h>
|
|
#include <limits.h>
|
|
#include <linux/wireless.h>
|
|
#include <netdb.h>
|
|
#include <pwd.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/statvfs.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sysinfo.h>
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <X11/Xlib.h>
|
|
|
|
#undef strlcat
|
|
#undef strlcpy
|
|
|
|
#include "strlcat.h"
|
|
#include "strlcpy.h"
|
|
|
|
struct arg {
|
|
char *(*func)();
|
|
const char *format;
|
|
const char *args;
|
|
};
|
|
|
|
static void setstatus(const char *);
|
|
static char *smprintf(const char *, ...);
|
|
static char *battery_perc(const char *);
|
|
static char *cpu_perc(void);
|
|
static char *datetime(const char *);
|
|
static char *disk_free(const char *);
|
|
static char *disk_perc(const char *);
|
|
static char *disk_total(const char *);
|
|
static char *disk_used(const char *);
|
|
static char *entropy(void);
|
|
static char *gid(void);
|
|
static char *hostname(void);
|
|
static char *ip(const char *);
|
|
static char *load_avg(void);
|
|
static char *ram_free(void);
|
|
static char *ram_perc(void);
|
|
static char *ram_used(void);
|
|
static char *ram_total(void);
|
|
static char *run_command(const char *);
|
|
static char *temp(const char *);
|
|
static char *uid(void);
|
|
static char *uptime(void);
|
|
static char *username(void);
|
|
static char *vol_perc(const char *);
|
|
static char *wifi_perc(const char *);
|
|
static char *wifi_essid(const char *);
|
|
|
|
static Display *dpy;
|
|
|
|
#include "config.h"
|
|
|
|
static void
|
|
setstatus(const char *str)
|
|
{
|
|
/* set WM_NAME via X11 */
|
|
XStoreName(dpy, DefaultRootWindow(dpy), str);
|
|
XSync(dpy, False);
|
|
}
|
|
|
|
static char *
|
|
smprintf(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
char *ret;
|
|
int len;
|
|
|
|
va_start(ap, fmt);
|
|
len = vsnprintf(NULL, 0, fmt, ap);
|
|
va_end(ap);
|
|
|
|
ret = malloc(++len);
|
|
if (ret == NULL) {
|
|
perror("malloc");
|
|
exit(1);
|
|
}
|
|
|
|
va_start(ap, fmt);
|
|
vsnprintf(ret, len, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static char *
|
|
battery_perc(const char *battery)
|
|
{
|
|
int now, full, perc;
|
|
char batterynowfile[64];
|
|
char batteryfullfile[64];
|
|
FILE *fp;
|
|
|
|
strlcpy(batterynowfile, BATTERY_PATH, sizeof(batterynowfile));
|
|
strlcat(batterynowfile, battery, sizeof(batterynowfile));
|
|
strlcat(batterynowfile, "/", sizeof(batterynowfile));
|
|
strlcat(batterynowfile, BATTERY_NOW, sizeof(batterynowfile));
|
|
|
|
strlcpy(batteryfullfile, BATTERY_PATH, sizeof(batteryfullfile));
|
|
strlcat(batteryfullfile, battery, sizeof(batteryfullfile));
|
|
strlcat(batteryfullfile, "/", sizeof(batteryfullfile));
|
|
strlcat(batteryfullfile, BATTERY_FULL, sizeof(batteryfullfile));
|
|
|
|
fp = fopen(batterynowfile, "r");
|
|
if (fp == NULL ) {
|
|
fprintf(stderr, "Error opening battery file: %s: %s\n",
|
|
batterynowfile,
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%i", &now);
|
|
fclose(fp);
|
|
|
|
fp = fopen(batteryfullfile, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening battery file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%i", &full);
|
|
fclose(fp);
|
|
|
|
perc = now / (full / 100);
|
|
|
|
return smprintf("%d%%", perc);
|
|
}
|
|
|
|
static char *
|
|
cpu_perc(void)
|
|
{
|
|
int perc;
|
|
long double a[4], b[4];
|
|
FILE *fp = fopen("/proc/stat","r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening stat file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
|
|
fclose(fp);
|
|
|
|
/* wait a second (for avg values) */
|
|
sleep(1);
|
|
|
|
fp = fopen("/proc/stat","r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening stat file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
|
|
fclose(fp);
|
|
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 smprintf("%d%%", perc);
|
|
}
|
|
|
|
static char *
|
|
datetime(const char *timeformat)
|
|
{
|
|
time_t t;
|
|
char timestr[80];
|
|
|
|
t = time(NULL);
|
|
if (strftime(timestr, sizeof(timestr), timeformat, localtime(&t)) == 0)
|
|
return smprintf(UNKNOWN_STR);
|
|
|
|
return smprintf("%s", timestr);
|
|
}
|
|
|
|
static char *
|
|
disk_free(const char *mountpoint)
|
|
{
|
|
struct statvfs fs;
|
|
|
|
if (statvfs(mountpoint, &fs) < 0) {
|
|
fprintf(stderr, "Could not get filesystem info: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
disk_perc(const char *mountpoint)
|
|
{
|
|
int perc = 0;
|
|
struct statvfs fs;
|
|
|
|
if (statvfs(mountpoint, &fs) < 0) {
|
|
fprintf(stderr, "Could not get filesystem info: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
|
|
return smprintf("%d%%", perc);
|
|
}
|
|
|
|
static char *
|
|
disk_total(const char *mountpoint)
|
|
{
|
|
struct statvfs fs;
|
|
|
|
if (statvfs(mountpoint, &fs) < 0) {
|
|
fprintf(stderr, "Could not get filesystem info: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
disk_used(const char *mountpoint)
|
|
{
|
|
struct statvfs fs;
|
|
|
|
if (statvfs(mountpoint, &fs) < 0) {
|
|
fprintf(stderr, "Could not get filesystem info: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
entropy(void)
|
|
{
|
|
int entropy = 0;
|
|
FILE *fp = fopen("/proc/sys/kernel/random/entropy_avail", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not open entropy file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%d", &entropy);
|
|
fclose(fp);
|
|
return smprintf("%d", entropy);
|
|
}
|
|
|
|
static char *
|
|
gid(void)
|
|
{
|
|
return smprintf("%d", getgid());
|
|
}
|
|
|
|
static char *
|
|
hostname(void)
|
|
{
|
|
char hostname[HOST_NAME_MAX];
|
|
FILE *fp = fopen("/proc/sys/kernel/hostname", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not open hostname file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fgets(hostname, sizeof(hostname), fp);
|
|
/* FIXME: needs improvement */
|
|
memset(&hostname[strlen(hostname)-1], '\0',
|
|
sizeof(hostname) - strlen(hostname));
|
|
fclose(fp);
|
|
return smprintf("%s", hostname);
|
|
}
|
|
|
|
static char *
|
|
ip(const char *interface)
|
|
{
|
|
struct ifaddrs *ifaddr, *ifa;
|
|
int s;
|
|
char host[NI_MAXHOST];
|
|
|
|
if (getifaddrs(&ifaddr) == -1) {
|
|
fprintf(stderr, "Error getting IP address: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
/* 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.\n");
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
return smprintf("%s", host);
|
|
}
|
|
}
|
|
|
|
/* free the address */
|
|
freeifaddrs(ifaddr);
|
|
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
static char *
|
|
load_avg(void)
|
|
{
|
|
double avgs[3];
|
|
|
|
if (getloadavg(avgs, 3) < 0) {
|
|
fprintf(stderr, "Error getting load avg.\n");
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
|
|
}
|
|
|
|
static char *
|
|
ram_free(void)
|
|
{
|
|
long free;
|
|
FILE *fp = fopen("/proc/meminfo", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening meminfo file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "MemFree: %ld kB\n", &free);
|
|
fclose(fp);
|
|
return smprintf("%f", (float)free / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
ram_perc(void)
|
|
{
|
|
int perc;
|
|
long total, free, buffers, cached;
|
|
FILE *fp = fopen("/proc/meminfo", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening meminfo file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
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);
|
|
|
|
fclose(fp);
|
|
perc = 100 * ((total - free) - (buffers + cached)) / total;
|
|
return smprintf("%d%%", perc);
|
|
}
|
|
|
|
static char *
|
|
ram_total(void)
|
|
{
|
|
long total;
|
|
FILE *fp = fopen("/proc/meminfo", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening meminfo file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "MemTotal: %ld kB\n", &total);
|
|
fclose(fp);
|
|
return smprintf("%f", (float)total / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
ram_used(void)
|
|
{
|
|
long free, total, buffers, cached, used;
|
|
FILE *fp = fopen("/proc/meminfo", "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening meminfo file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
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);
|
|
|
|
fclose(fp);
|
|
used = total - free - buffers - cached;
|
|
return smprintf("%f", (float)used / 1024 / 1024);
|
|
}
|
|
|
|
static char *
|
|
run_command(const char* command)
|
|
{
|
|
int good;
|
|
FILE *fp = popen(command, "r");
|
|
char buffer[64];
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not get command output for: %s: %s\n",
|
|
command, strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fgets(buffer, sizeof(buffer)-1, fp);
|
|
pclose(fp);
|
|
for (int i = 0 ; i != sizeof(buffer); i++) {
|
|
if (buffer[i] == '\0') {
|
|
good = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (good)
|
|
buffer[strlen(buffer)-1] = '\0';
|
|
return smprintf("%s", buffer);
|
|
}
|
|
|
|
static char *
|
|
temp(const char *file)
|
|
{
|
|
int temperature;
|
|
FILE *fp = fopen(file, "r");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Could not open temperature file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fscanf(fp, "%d", &temperature);
|
|
fclose(fp);
|
|
return smprintf("%d°C", temperature / 1000);
|
|
}
|
|
|
|
static char *
|
|
uptime(void)
|
|
{
|
|
struct sysinfo info;
|
|
int hours = 0;
|
|
int minutes = 0;
|
|
|
|
sysinfo(&info);
|
|
hours = info.uptime / 3600;
|
|
minutes = (info.uptime - hours * 3600 ) / 60;
|
|
|
|
return smprintf("%dh %dm", hours, minutes);
|
|
}
|
|
|
|
static char *
|
|
username(void)
|
|
{
|
|
uid_t uid = geteuid();
|
|
struct passwd *pw = getpwuid(uid);
|
|
|
|
if (pw == NULL)
|
|
return smprintf("%s", pw->pw_name);
|
|
|
|
fprintf(stderr, "Could not get username: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
static char *
|
|
uid(void)
|
|
{
|
|
return smprintf("%d", geteuid());
|
|
}
|
|
|
|
|
|
static char *
|
|
vol_perc(const char *soundcard)
|
|
{
|
|
/*
|
|
* TODO: FIXME:
|
|
* https://github.com/drkh5h/slstatus/issues/12
|
|
*/
|
|
int mute = 0;
|
|
long vol = 0, max = 0, min = 0;
|
|
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);
|
|
if (vol_info == NULL || mute_info == NULL) {
|
|
fprintf(stderr, "Could not get alsa volume.\n");
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
snd_mixer_selem_id_set_name(vol_info, ALSA_CHANNEL);
|
|
snd_mixer_selem_id_set_name(mute_info, ALSA_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);
|
|
|
|
if (!mute)
|
|
return smprintf("mute");
|
|
else
|
|
return smprintf("%d%%", (vol * 100) / max);
|
|
}
|
|
|
|
static char *
|
|
wifi_perc(const char *wificard)
|
|
{
|
|
int strength;
|
|
char buf[255];
|
|
char *datastart;
|
|
char path[64];
|
|
char status[5];
|
|
char needle[strlen(wificard)+2];
|
|
FILE *fp;
|
|
|
|
strlcpy(path, "/sys/class/net/", sizeof(path));
|
|
strlcat(path, wificard, sizeof(path));
|
|
strlcat(path, "/operstate", sizeof(path));
|
|
|
|
fp = fopen(path, "r");
|
|
|
|
if(fp == NULL) {
|
|
fprintf(stderr, "Error opening wifi operstate file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
fgets(status, 5, fp);
|
|
fclose(fp);
|
|
if(strcmp(status, "up\n") != 0)
|
|
return smprintf(UNKNOWN_STR);
|
|
|
|
fp = fopen("/proc/net/wireless", "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "Error opening wireless file: %s\n",
|
|
strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
strlcpy(needle, wificard, sizeof(needle));
|
|
strlcat(needle, ":", sizeof(needle));
|
|
fgets(buf, sizeof(buf), fp);
|
|
fgets(buf, sizeof(buf), fp);
|
|
fgets(buf, sizeof(buf), fp);
|
|
|
|
datastart = strstr(buf, needle);
|
|
if (datastart != NULL) {
|
|
datastart = strstr(buf, ":");
|
|
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
|
|
}
|
|
|
|
fclose(fp);
|
|
return smprintf("%d%%", strength);
|
|
}
|
|
|
|
static char *
|
|
wifi_essid(const char *wificard)
|
|
{
|
|
char id[IW_ESSID_MAX_SIZE+1];
|
|
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
struct iwreq wreq;
|
|
|
|
memset(&wreq, 0, sizeof(struct iwreq));
|
|
wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
|
|
sprintf(wreq.ifr_name, wificard);
|
|
if(sockfd == -1) {
|
|
fprintf(stderr, "Cannot open socket for interface: %s: %s\n",
|
|
wificard, strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
wreq.u.essid.pointer = id;
|
|
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
|
|
fprintf(stderr, "Get ESSID ioctl failed for interface %s: %s\n",
|
|
wificard, strerror(errno));
|
|
return smprintf(UNKNOWN_STR);
|
|
}
|
|
|
|
if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
|
|
return smprintf(UNKNOWN_STR);
|
|
else
|
|
return smprintf("%s", (char *)wreq.u.essid.pointer);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
size_t i;
|
|
char status_string[4096];
|
|
char *res, *element;
|
|
struct arg argument;
|
|
|
|
dpy = XOpenDisplay(0x0);
|
|
if (!dpy) {
|
|
fprintf(stderr, "Cannot open display!\n");
|
|
exit(1);
|
|
}
|
|
|
|
for (;;) {
|
|
memset(status_string, 0, sizeof(status_string));
|
|
for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
|
|
argument = args[i];
|
|
if (argument.args == NULL)
|
|
res = argument.func();
|
|
else
|
|
res = argument.func(argument.args);
|
|
element = smprintf(argument.format, res);
|
|
if (element == NULL) {
|
|
element = smprintf(UNKNOWN_STR);
|
|
fprintf(stderr, "Failed to format output.\n");
|
|
}
|
|
strlcat(status_string, element, sizeof(status_string));
|
|
free(res);
|
|
free(element);
|
|
}
|
|
|
|
setstatus(status_string);
|
|
sleep(UPDATE_INTERVAL -1);
|
|
}
|
|
|
|
/* NOT REACHED */
|
|
/*
|
|
* TODO: find out a way to exit successfully
|
|
* to prevent memory leaks
|
|
*/
|
|
/*
|
|
XCloseDisplay(dpy);
|
|
return 0;
|
|
*/
|
|
}
|