/* See LICENSE file for copyright and license details. */
-
-#include <alsa/asoundlib.h>
-#include <err.h>
-#include <fcntl.h>
-#include <ifaddrs.h>
-#include <limits.h>
-#include <linux/wireless.h>
-#include <netdb.h>
-#include <pwd.h>
+#include <errno.h>
#include <signal.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"
-#include "concat.h"
-
-char concat[];
+#include "arg.h"
+#include "slstatus.h"
+#include "util.h"
struct arg {
- char *(*func)();
- const char *format;
+ const char *(*func)();
+ const char *fmt;
const char *args;
};
-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 void sighandler(const int);
-
-static unsigned short int delay;
+char buf[1024];
+static int done;
static Display *dpy;
-static int done = 0;
#include "config.h"
-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 perc;
- FILE *fp;
-
- ccat(3, "/sys/class/power_supply/", battery, "/capacity");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Error opening battery file: %s", concat);
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%i", &perc);
- fclose(fp);
-
- 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) {
- warn("Error opening stat file");
- return smprintf(UNKNOWN_STR);
- }
-
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
- fclose(fp);
-
- delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1));
- sleep(delay);
-
- fp = fopen("/proc/stat","r");
- if (fp == NULL) {
- warn("Error opening stat file");
- 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) {
- warn("Could not get filesystem info");
- 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)
+static void
+terminate(const int signo)
{
- int perc = 0;
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
+ (void)signo;
- return smprintf("%d%%", perc);
+ done = 1;
}
-static char *
-disk_total(const char *mountpoint)
+static void
+difftimespec(struct timespec *res, struct timespec *a, struct timespec *b)
{
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
+ res->tv_sec = a->tv_sec - b->tv_sec - (a->tv_nsec < b->tv_nsec);
+ res->tv_nsec = a->tv_nsec - b->tv_nsec +
+ (a->tv_nsec < b->tv_nsec) * 1000000000;
}
-static char *
-disk_used(const char *mountpoint)
+static void
+usage(void)
{
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
+ die("usage: %s [-s]", argv0);
}
-static char *
-entropy(void)
+int
+main(int argc, char *argv[])
{
- int entropy = 0;
- FILE *fp = fopen("/proc/sys/kernel/random/entropy_avail", "r");
+ struct sigaction act;
+ struct timespec start, current, diff, intspec, wait;
+ size_t i, len;
+ int sflag, ret;
+ char status[MAXLEN];
+ const char *res;
+
+ sflag = 0;
+ ARGBEGIN {
+ case 's':
+ sflag = 1;
+ break;
+ default:
+ usage();
+ } ARGEND
- if (fp == NULL) {
- warn("Could not open entropy file");
- return smprintf(UNKNOWN_STR);
+ if (argc) {
+ usage();
}
- 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");
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = terminate;
+ sigaction(SIGINT, &act, NULL);
+ sigaction(SIGTERM, &act, NULL);
- if (fp == NULL) {
- warn("Could not open hostname file");
- return smprintf(UNKNOWN_STR);
+ if (sflag) {
+ setbuf(stdout, NULL);
}
- 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) {
- warn("Error getting IP address");
- return smprintf(UNKNOWN_STR);
+ if (!sflag && !(dpy = XOpenDisplay(NULL))) {
+ die("XOpenDisplay: Failed to open display");
}
- 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);
+ while (!done) {
+ if (clock_gettime(CLOCK_MONOTONIC, &start) < 0) {
+ die("clock_gettime:");
+ }
- if ((strcmp(ifa->ifa_name, interface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
- if (s != 0) {
- warnx("Error getting IP address.");
- return smprintf(UNKNOWN_STR);
+ status[0] = '\0';
+ for (i = len = 0; i < LEN(args); i++) {
+ if (!(res = args[i].func(args[i].args))) {
+ res = unknown_str;
+ }
+ if ((ret = esnprintf(status + len, sizeof(status) - len,
+ args[i].fmt, res)) < 0) {
+ break;
}
- return smprintf("%s", host);
+ len += ret;
}
- }
-
- freeifaddrs(ifaddr);
-
- return smprintf(UNKNOWN_STR);
-}
-
-static char *
-load_avg(void)
-{
- double avgs[3];
-
- if (getloadavg(avgs, 3) < 0) {
- warnx("Error getting load avg.");
- 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) {
- warn("Error opening meminfo file");
- 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) {
- warn("Error opening meminfo file");
- 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) {
- warn("Error opening meminfo file");
- 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) {
- warn("Error opening meminfo file");
- 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) {
- warn("Could not get command output for: %s", command);
- 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 (sflag) {
+ printf("%s\n", status);
+ } else {
+ if (XStoreName(dpy, DefaultRootWindow(dpy), status) < 0) {
+ die("XStoreName: Allocation failed");
+ }
+ XFlush(dpy);
}
- }
- 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) {
- warn("Could not open temperature file");
- 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) {
- warn("Could not get username");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%s", pw->pw_name);
-}
-
-static char *
-uid(void)
-{
- return smprintf("%d", geteuid());
-}
-
-static char *
-vol_perc(const char *soundcard)
-{ /* FIX THIS SHIT! */
- long int vol, max, min;
- snd_mixer_t *handle;
- snd_mixer_elem_t *elem;
- snd_mixer_selem_id_t *s_elem;
-
- snd_mixer_open(&handle, 0);
- snd_mixer_attach(handle, snd_card);
- snd_mixer_selem_register(handle, NULL, NULL);
- snd_mixer_load(handle);
- snd_mixer_selem_id_malloc(&s_elem);
- snd_mixer_selem_id_set_name(s_elem, "Master");
- elem = snd_mixer_find_selem(handle, s_elem);
-
- if (elem == NULL) {
- snd_mixer_selem_id_free(s_elem);
- snd_mixer_close(handle);
- warn("error: ALSA");
- return smprintf(UNKNOWN_STR);
- }
-
- snd_mixer_handle_events(handle);
- snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
- snd_mixer_selem_get_playback_volume(elem, 0, &vol);
-
- snd_mixer_selem_id_free(s_elem);
- snd_mixer_close(handle);
-
- return smprintf("%d", ((uint_fast16_t)(vol * 100) / max));
-}
-
-static char *
-wifi_perc(const char *wificard)
-{
- int strength;
- char buf[255];
- char *datastart;
- char status[5];
- FILE *fp;
-
- ccat(3, "/sys/class/net/", wificard, "/operstate");
-
- fp = fopen(concat, "r");
-
- if (fp == NULL) {
- warn("Error opening wifi operstate file");
- 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) {
- warn("Error opening wireless file");
- return smprintf(UNKNOWN_STR);
- }
-
- ccat(2, wificard, ":");
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
-
- datastart = strstr(buf, concat);
- 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) {
- warn("Cannot open socket for interface: %s", wificard);
- return smprintf(UNKNOWN_STR);
- }
- wreq.u.essid.pointer = id;
- if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
- warn("Get ESSID ioctl failed for interface %s", wificard);
- return smprintf(UNKNOWN_STR);
- }
-
- close(sockfd);
-
- if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
- return smprintf(UNKNOWN_STR);
- else
- return smprintf("%s", (char *)wreq.u.essid.pointer);
-}
-
-static void
-sighandler(const int signo)
-{
- if (signo == SIGTERM || signo == SIGINT) {
- done = 1;
- }
-}
-
-int
-main(void)
-{
- size_t i;
- char status_string[4096];
- char *res, *element, *status_old;
- struct arg argument;
- struct sigaction act;
-
- memset(&act, 0, sizeof(act));
- act.sa_handler = sighandler;
- sigaction(SIGINT, &act, 0);
- sigaction(SIGTERM, &act, 0);
-
- dpy = XOpenDisplay(NULL);
+ if (!done) {
+ if (clock_gettime(CLOCK_MONOTONIC, ¤t) < 0) {
+ die("clock_gettime:");
+ }
+ difftimespec(&diff, ¤t, &start);
- XFetchName(dpy, DefaultRootWindow(dpy), &status_old);
+ intspec.tv_sec = interval / 1000;
+ intspec.tv_nsec = (interval % 1000) * 1000000;
+ difftimespec(&wait, &intspec, &diff);
- while (!done) {
- status_string[0] = '\0';
- 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);
- warnx("Failed to format output.");
+ if (wait.tv_sec >= 0) {
+ if (nanosleep(&wait, NULL) < 0 &&
+ errno != EINTR) {
+ die("nanosleep:");
+ }
}
- strlcat(status_string, element, sizeof(status_string));
- free(res);
- free(element);
}
- XStoreName(dpy, DefaultRootWindow(dpy), status_string);
- XSync(dpy, False);
- /*
- * subtract delay time spend in function
- * calls from the actual global delay time
- */
- sleep(UPDATE_INTERVAL - delay);
- delay = 0;
}
- XStoreName(dpy, DefaultRootWindow(dpy), status_old);
- XSync(dpy, False);
-
- XCloseDisplay(dpy);
+ if (!sflag) {
+ XStoreName(dpy, DefaultRootWindow(dpy), NULL);
+ if (XCloseDisplay(dpy) < 0) {
+ die("XCloseDisplay: Failed to close display");
+ }
+ }
return 0;
}