/* See LICENSE file for copyright and license details. */
-#include <dirent.h>
-#include <err.h>
#include <errno.h>
-#include <fcntl.h>
-#include <ifaddrs.h>
-#include <limits.h>
-#include <linux/wireless.h>
-#include <netdb.h>
-#include <pwd.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/soundcard.h>
-#include <sys/sysinfo.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
#include <time.h>
-#include <unistd.h>
#include <X11/Xlib.h>
#include "arg.h"
-
-#define LEN(x) (sizeof (x) / sizeof *(x))
+#include "slstatus.h"
+#include "util.h"
struct arg {
const char *(*func)();
const char *args;
};
-static const char *battery_perc(const char *bat);
-static const char *battery_power(const char *bat);
-static const char *battery_state(const char *bat);
-static const char *cpu_freq(void);
-static const char *cpu_perc(void);
-static const char *datetime(const char *fmt);
-static const char *disk_free(const char *mnt);
-static const char *disk_perc(const char *mnt);
-static const char *disk_total(const char *mnt);
-static const char *disk_used(const char *mnt);
-static const char *entropy(void);
-static const char *gid(void);
-static const char *hostname(void);
-static const char *ip(const char *iface);
-static const char *kernel_release(void);
-static const char *keyboard_indicators(void);
-static const char *load_avg(void);
-static const char *num_files(const char *dir);
-static const char *ram_free(void);
-static const char *ram_perc(void);
-static const char *ram_used(void);
-static const char *ram_total(void);
-static const char *run_command(const char *cmd);
-static const char *swap_free(void);
-static const char *swap_perc(void);
-static const char *swap_used(void);
-static const char *swap_total(void);
-static const char *temp(const char *file);
-static const char *uid(void);
-static const char *uptime(void);
-static const char *username(void);
-static const char *vol_perc(const char *card);
-static const char *wifi_perc(const char *iface);
-static const char *wifi_essid(const char *iface);
-
-char *argv0;
-static unsigned short int done;
+char buf[1024];
+static int done;
static Display *dpy;
#include "config.h"
-static char buf[MAXLEN];
-
-static const char *
-bprintf(const char *fmt, ...)
-{
- va_list ap;
- size_t len;
-
- va_start(ap, fmt);
- len = vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
- va_end(ap);
-
- if (len >= sizeof(buf))
- buf[sizeof(buf)-1] = '\0';
-
- return buf;
-}
-
-int
-pscanf(const char *path, const char *fmt, ...)
-{
- FILE *fp;
- va_list ap;
- int n;
-
- if (!(fp = fopen(path, "r"))) {
- warn("fopen %s: %s\n", path, strerror(errno));
- return -1;
- }
- va_start(ap, fmt);
- n = vfscanf(fp, fmt, ap);
- va_end(ap);
- fclose(fp);
-
- return (n == EOF) ? -1 : n;
-}
-
-static const char *
-battery_perc(const char *bat)
-{
- int perc;
- char path[PATH_MAX];
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/capacity");
- return (pscanf(path, "%i", &perc) == 1) ?
- bprintf("%d", perc) : unknown_str;
-}
-
-static const char *
-battery_power(const char *bat)
-{
- int watts;
- char path[PATH_MAX];
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/power_now");
- return (pscanf(path, "%i", &watts) == 1) ?
- bprintf("%d", (watts + 500000) / 1000000) : unknown_str;
-}
-
-static const char *
-battery_state(const char *bat)
-{
- struct {
- char *state;
- char *symbol;
- } map[] = {
- { "Charging", "+" },
- { "Discharging", "-" },
- { "Full", "=" },
- { "Unknown", "/" },
- };
- size_t i;
- char path[PATH_MAX], state[12];
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status");
- if (pscanf(path, "%12s", state) != 1) {
- return unknown_str;
- }
-
- for (i = 0; i < LEN(map); i++) {
- if (!strcmp(map[i].state, state)) {
- break;
- }
- }
- return (i == LEN(map)) ? "?" : map[i].symbol;
-}
-
-static const char *
-cpu_freq(void)
-{
- int freq;
-
- return (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq",
- "%i", &freq) == 1) ?
- bprintf("%d", (freq + 500) / 1000) : unknown_str;
-}
-
-static const char *
-cpu_perc(void)
-{
- struct timespec delay;
- int perc;
- long double a[4], b[4];
-
- if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2],
- &a[3]) != 4) {
- return unknown_str;
- }
-
- delay.tv_sec = (interval / 2) / 1000;
- delay.tv_nsec = ((interval / 2) % 1000) * 1000000;
- nanosleep(&delay, NULL);
-
- if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2],
- &b[3]) != 4) {
- return unknown_str;
- }
-
- 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 bprintf("%d", perc);
-}
-
-static const char *
-datetime(const char *fmt)
-{
- time_t t;
-
- t = time(NULL);
- if (strftime(buf, sizeof(buf), fmt, localtime(&t)) == 0)
- return unknown_str;
-
- return buf;
-}
-
-static const char *
-disk_free(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return unknown_str;
- }
-
- return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
-}
-
-static const char *
-disk_perc(const char *mnt)
-{
- int perc;
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return unknown_str;
- }
-
- perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
-
- return bprintf("%d", perc);
-}
-
-static const char *
-disk_total(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return unknown_str;
- }
-
- return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
-}
-
-static const char *
-disk_used(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return unknown_str;
- }
-
- return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
-}
-
-static const char *
-entropy(void)
-{
- int num;
-
- return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?
- bprintf("%d", num) : unknown_str;
-}
-
-static const char *
-gid(void)
-{
- return bprintf("%d", getgid());
-}
-
-static const char *
-hostname(void)
-{
- if (gethostname(buf, sizeof(buf)) == -1) {
- warn("hostname");
- return unknown_str;
- }
-
- return buf;
-}
-
-static const char *
-ip(const char *iface)
-{
- struct ifaddrs *ifaddr, *ifa;
- int s;
- char host[NI_MAXHOST];
-
- if (getifaddrs(&ifaddr) == -1) {
- warn("Failed to get IP address for interface %s", iface);
- return unknown_str;
- }
-
- 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, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
- if (s != 0) {
- warnx("Failed to get IP address for interface %s", iface);
- return unknown_str;
- }
- return bprintf("%s", host);
- }
- }
-
- freeifaddrs(ifaddr);
-
- return unknown_str;
-}
-
-static const char *
-kernel_release(void)
-{
- struct utsname udata;
-
- if (uname(&udata) < 0) {
- return unknown_str;
- }
-
- return bprintf("%s", udata.release);
-}
-
-static const char *
-keyboard_indicators(void)
-{
- Display *dpy = XOpenDisplay(NULL);
- XKeyboardState state;
-
- if (dpy == NULL) {
- warnx("XOpenDisplay failed");
- return unknown_str;
- }
- XGetKeyboardControl(dpy, &state);
- XCloseDisplay(dpy);
-
- switch (state.led_mask) {
- case 1:
- return "c";
- case 2:
- return "n";
- case 3:
- return "cn";
- default:
- return "";
- }
-}
-
-static const char *
-load_avg(void)
-{
- double avgs[3];
-
- if (getloadavg(avgs, 3) < 0) {
- warnx("Failed to get the load avg");
- return unknown_str;
- }
-
- return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
-}
-
-static const char *
-num_files(const char *dir)
-{
- struct dirent *dp;
- DIR *fd;
- int num = 0;
-
- if ((fd = opendir(dir)) == NULL) {
- warn("Failed to get number of files in directory %s", dir);
- return unknown_str;
- }
-
- while ((dp = readdir(fd)) != NULL) {
- if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
- continue; /* skip self and parent */
- num++;
- }
-
- closedir(fd);
-
- return bprintf("%d", num);
-}
-
-static const char *
-ram_free(void)
-{
- long free;
-
- return (pscanf("/proc/meminfo", "MemFree: %ld kB\n", &free) == 1) ?
- bprintf("%f", (float)free / 1024 / 1024) : unknown_str;
-}
-
-static const char *
-ram_perc(void)
-{
- long total, free, buffers, cached;
-
- return (pscanf("/proc/meminfo",
- "MemTotal: %ld kB\n"
- "MemFree: %ld kB\n"
- "MemAvailable: %ld kB\nBuffers: %ld kB\n"
- "Cached: %ld kB\n",
- &total, &free, &buffers, &buffers, &cached) == 5) ?
- bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total) :
- unknown_str;
-}
-
-static const char *
-ram_total(void)
-{
- long total;
-
- return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ?
- bprintf("%f", (float)total / 1024 / 1024) : unknown_str;
-}
-
-static const char *
-ram_used(void)
-{
- long total, free, buffers, cached;
-
- return (pscanf("/proc/meminfo",
- "MemTotal: %ld kB\n"
- "MemFree: %ld kB\n"
- "MemAvailable: %ld kB\nBuffers: %ld kB\n"
- "Cached: %ld kB\n",
- &total, &free, &buffers, &buffers, &cached) == 5) ?
- bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024) :
- unknown_str;
-}
-
-static const char *
-run_command(const char *cmd)
-{
- char *p;
- FILE *fp;
-
- fp = popen(cmd, "r");
- if (fp == NULL) {
- warn("Failed to get command output for %s", cmd);
- return unknown_str;
- }
- p = fgets(buf, sizeof(buf) - 1, fp);
- pclose(fp);
- if (!p)
- return unknown_str;
- if ((p = strrchr(buf, '\n')) != NULL)
- p[0] = '\0';
-
- return buf[0] ? buf : unknown_str;
-}
-
-static const char *
-swap_free(void)
-{
- long total, free;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return unknown_str;
- }
-
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_free: read error");
- fclose(fp);
- return unknown_str;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return unknown_str;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return unknown_str;
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return bprintf("%f", (float)free / 1024 / 1024);
-}
-
-static const char *
-swap_perc(void)
-{
- long total, free, cached;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return unknown_str;
- }
-
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_perc: read error");
- fclose(fp);
- return unknown_str;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return unknown_str;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapCached")) == NULL)
- return unknown_str;
- sscanf(match, "SwapCached: %ld kB\n", &cached);
-
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return unknown_str;
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return bprintf("%d", 100 * (total - free - cached) / total);
-}
-
-static const char *
-swap_total(void)
-{
- long total;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return unknown_str;
- }
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_total: read error");
- fclose(fp);
- return unknown_str;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return unknown_str;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- return bprintf("%f", (float)total / 1024 / 1024);
-}
-
-static const char *
-swap_used(void)
-{
- long total, free, cached;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return unknown_str;
- }
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_used: read error");
- fclose(fp);
- return unknown_str;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return unknown_str;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapCached")) == NULL)
- return unknown_str;
- sscanf(match, "SwapCached: %ld kB\n", &cached);
-
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return unknown_str;
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
-}
-
-static const char *
-temp(const char *file)
-{
- int temp;
-
- return (pscanf(file, "%d", &temp) == 1) ?
- bprintf("%d", temp / 1000) : unknown_str;
-}
-
-static const char *
-uptime(void)
-{
- struct sysinfo info;
- int h = 0;
- int m = 0;
-
- sysinfo(&info);
- h = info.uptime / 3600;
- m = (info.uptime - h * 3600 ) / 60;
-
- return bprintf("%dh %dm", h, m);
-}
-
-static const char *
-username(void)
-{
- struct passwd *pw = getpwuid(geteuid());
-
- if (pw == NULL) {
- warn("Failed to get username");
- return unknown_str;
- }
-
- return bprintf("%s", pw->pw_name);
-}
-
-static const char *
-uid(void)
-{
- return bprintf("%d", geteuid());
-}
-
-
-static const char *
-vol_perc(const char *card)
-{
- unsigned int i;
- int v, afd, devmask;
- char *vnames[] = SOUND_DEVICE_NAMES;
-
- afd = open(card, O_RDONLY | O_NONBLOCK);
- if (afd == -1) {
- warn("Cannot open %s", card);
- return unknown_str;
- }
-
- if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
- warn("Cannot get volume for %s", card);
- close(afd);
- return unknown_str;
- }
- for (i = 0; i < LEN(vnames); i++) {
- if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
- if (ioctl(afd, MIXER_READ(i), &v) == -1) {
- warn("vol_perc: ioctl");
- close(afd);
- return unknown_str;
- }
- }
- }
-
- close(afd);
-
- return bprintf("%d", v & 0xff);
-}
-
-static const char *
-wifi_perc(const char *iface)
-{
- int i, perc;
- char *p, *datastart;
- char path[PATH_MAX];
- char status[5];
- FILE *fp;
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
- fp = fopen(path, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", path);
- return unknown_str;
- }
- p = fgets(status, 5, fp);
- fclose(fp);
- if(!p || strcmp(status, "up\n") != 0) {
- return unknown_str;
- }
-
- fp = fopen("/proc/net/wireless", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/net/wireless");
- return unknown_str;
- }
-
- for (i = 0; i < 3; i++) {
- if (!(p = fgets(buf, sizeof(buf) - 1, fp)))
- break;
- }
- fclose(fp);
- if (i < 2 || !p)
- return unknown_str;
-
- if ((datastart = strstr(buf, iface)) == NULL)
- return unknown_str;
-
- datastart = (datastart+(strlen(iface)+1));
- sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
-
- return bprintf("%d", perc);
-}
-
-static const char *
-wifi_essid(const char *iface)
-{
- static 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;
- snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
-
- if (sockfd == -1) {
- warn("Failed to get ESSID for interface %s", iface);
- return unknown_str;
- }
- wreq.u.essid.pointer = id;
- if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
- warn("Failed to get ESSID for interface %s", iface);
- return unknown_str;
- }
-
- close(sockfd);
-
- if (strcmp(id, "") == 0)
- return unknown_str;
- else
- return id;
-}
-
static void
terminate(const int signo)
{
+ (void)signo;
+
done = 1;
}
{
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;
+ (a->tv_nsec < b->tv_nsec) * 1E9;
}
static void
usage(void)
{
- fprintf(stderr, "usage: %s [-s]\n", argv0);
- exit(1);
+ die("usage: %s [-s]", argv0);
}
int
struct sigaction act;
struct timespec start, current, diff, intspec, wait;
size_t i, len;
- int sflag = 0;
+ int sflag, ret;
char status[MAXLEN];
+ const char *res;
+ sflag = 0;
ARGBEGIN {
case 's':
sflag = 1;
sigaction(SIGTERM, &act, NULL);
if (!sflag && !(dpy = XOpenDisplay(NULL))) {
- fprintf(stderr, "slstatus: cannot open display");
- return 1;
+ die("XOpenDisplay: Failed to open display");
}
while (!done) {
- clock_gettime(CLOCK_MONOTONIC, &start);
+ if (clock_gettime(CLOCK_MONOTONIC, &start) < 0) {
+ die("clock_gettime:");
+ }
status[0] = '\0';
for (i = len = 0; i < LEN(args); i++) {
- len += snprintf(status + len, sizeof(status) - len,
- args[i].fmt, args[i].func(args[i].args));
-
- if (len >= sizeof(status)) {
- status[sizeof(status) - 1] = '\0';
+ 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;
}
+ len += ret;
}
if (sflag) {
- printf("%s\n", status);
+ puts(status);
+ fflush(stdout);
+ if (ferror(stdout))
+ die("puts:");
} else {
- XStoreName(dpy, DefaultRootWindow(dpy), status);
- XSync(dpy, False);
+ if (XStoreName(dpy, DefaultRootWindow(dpy), status) < 0) {
+ die("XStoreName: Allocation failed");
+ }
+ XFlush(dpy);
}
if (!done) {
- clock_gettime(CLOCK_MONOTONIC, ¤t);
+ if (clock_gettime(CLOCK_MONOTONIC, ¤t) < 0) {
+ die("clock_gettime:");
+ }
difftimespec(&diff, ¤t, &start);
intspec.tv_sec = interval / 1000;
- intspec.tv_nsec = (interval % 1000) * 1000000;
+ intspec.tv_nsec = (interval % 1000) * 1E6;
difftimespec(&wait, &intspec, &diff);
if (wait.tv_sec >= 0) {
- nanosleep(&wait, NULL);
+ if (nanosleep(&wait, NULL) < 0 &&
+ errno != EINTR) {
+ die("nanosleep:");
+ }
}
}
}
if (!sflag) {
XStoreName(dpy, DefaultRootWindow(dpy), NULL);
- XCloseDisplay(dpy);
+ if (XCloseDisplay(dpy) < 0) {
+ die("XCloseDisplay: Failed to close display");
+ }
}
return 0;