/* See LICENSE file for copyright and license details. */
-/* global libraries */
#include <alsa/asoundlib.h>
-#include <arpa/inet.h>
+#include <err.h>
#include <fcntl.h>
#include <ifaddrs.h>
#include <limits.h>
#include <locale.h>
#include <netdb.h>
#include <pwd.h>
+#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#undef strlcat
#undef strlcpy
-#include "strlcat.h"
-#include "strlcpy.h"
+#include "extern/arg.h"
+#include "extern/strlcat.h"
+#include "extern/strlcpy.h"
+#include "extern/concat.h"
-/* statusbar configuration type and struct */
-typedef char *(*op_fun) (const char *);
struct arg {
- op_fun func;
- const char *format;
+ char *(*func)();
+ const char *fmt;
const char *args;
};
-/* function declarations */
-void setstatus(const char *str);
-char *smprintf(const char *fmt, ...);
-char *battery_perc(const char *battery);
-char *cpu_perc(const char *null);
-char *datetime(const char *timeformat);
-char *disk_free(const char *mountpoint);
-char *disk_perc(const char *mountpoint);
-char *disk_total(const char *mountpoint);
-char *disk_used(const char *mountpoint);
-char *entropy(const char *null);
-char *gid(const char *null);
-char *hostname(const char *null);
-char *ip(const char *interface);
-char *load_avg(const char *null);
-char *ram_free(const char *null);
-char *ram_perc(const char *null);
-char *ram_used(const char *null);
-char *ram_total(const char *null);
-char *run_command(const char *command);
-char *temp(const char *file);
-char *uid(const char *null);
-char *uptime(const char *null);
-char *username(const char *null);
-char *vol_perc(const char *soundcard);
-char *wifi_perc(const char *wificard);
-char *wifi_essid(const char *wificard);
-
-/* global variables */
+static char *smprintf(const char *fmt, ...);
+static char *battery_perc(const char *bat);
+static char *battery_state(const char *bat);
+static char *cpu_perc(void);
+static char *datetime(const char *fmt);
+static char *disk_free(const char *mnt);
+static char *disk_perc(const char *mnt);
+static char *disk_total(const char *mnt);
+static char *disk_used(const char *mnt);
+static char *entropy(void);
+static char *gid(void);
+static char *hostname(void);
+static char *ip(const char *iface);
+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 *cmd);
+static char *swap_free(void);
+static char *swap_perc(void);
+static char *swap_used(void);
+static char *swap_total(void);
+static char *temp(const char *file);
+static char *uid(void);
+static char *uptime(void);
+static char *username(void);
+static char *vol_perc(const char *card);
+static char *wifi_perc(const char *iface);
+static char *wifi_essid(const char *iface);
+static void set_status(const char *str);
+static void sighandler(const int signo);
+static void usage(void);
+
+char *argv0;
+char concat[];
+static unsigned short int delay;
+static unsigned short int done;
+static unsigned short int dflag, oflag;
static Display *dpy;
-/* configuration header */
#include "config.h"
-/* set statusbar */
-void
-setstatus(const char *str)
-{
- /* set WM_NAME via X11 */
- XStoreName(dpy, DefaultRootWindow(dpy), str);
- XSync(dpy, False);
-}
-
-/* smprintf function */
-char *
+static char *
smprintf(const char *fmt, ...)
{
- va_list fmtargs;
- char *ret = NULL;
+ va_list ap;
+ char *ret;
+ int len;
- va_start(fmtargs, fmt);
- if (vasprintf(&ret, fmt, fmtargs) < 0)
- return NULL;
- va_end(fmtargs);
+ va_start(ap, fmt);
+ len = vsnprintf(NULL, 0, fmt, ap);
+ va_end(ap);
+
+ ret = malloc(++len);
+ if (ret == NULL) {
+ err(1, "malloc");
+ }
+
+ va_start(ap, fmt);
+ vsnprintf(ret, len, fmt, ap);
+ va_end(ap);
return ret;
}
-/* battery percentage */
-char *
-battery_perc(const char *battery)
+static char *
+battery_perc(const char *bat)
{
- int now, full, perc;
- char batterynowfile[64] = "";
- char batteryfullfile[64] = "";
+ int perc;
FILE *fp;
- /* generate battery nowfile path */
- strlcat(batterynowfile, batterypath, sizeof(batterynowfile));
- strlcat(batterynowfile, battery, sizeof(batterynowfile));
- strlcat(batterynowfile, "/", sizeof(batterynowfile));
- strlcat(batterynowfile, batterynow, sizeof(batterynowfile));
-
- /* generate battery fullfile path */
- strlcat(batteryfullfile, batterypath, sizeof(batteryfullfile));
- strlcat(batteryfullfile, battery, sizeof(batteryfullfile));
- strlcat(batteryfullfile, "/", sizeof(batteryfullfile));
- strlcat(batteryfullfile, batteryfull, sizeof(batteryfullfile));
-
- /* open battery now file */
- if (!(fp = fopen(batterynowfile, "r"))) {
- fprintf(stderr, "Error opening battery file: %s.\n", batterynowfile);
- return smprintf(unknowntext);
+ ccat(3, "/sys/class/power_supply/", bat, "/capacity");
+ fp = fopen(concat, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", concat);
+ return smprintf(UNKNOWN_STR);
}
-
- /* read value */
- fscanf(fp, "%i", &now);
-
- /* close battery now file */
+ fscanf(fp, "%i", &perc);
fclose(fp);
- /* open battery full file */
- if (!(fp = fopen(batteryfullfile, "r"))) {
- fprintf(stderr, "Error opening battery file.\n");
- return smprintf(unknowntext);
- }
+ return smprintf("%d%%", perc);
+}
- /* read value */
- fscanf(fp, "%i", &full);
+static char *
+battery_state(const char *bat)
+{
+ char state[12];
+ FILE *fp;
- /* close battery full file */
+ ccat(3, "/sys/class/power_supply/", bat, "/status");
+ fp = fopen(concat, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", concat);
+ return smprintf(UNKNOWN_STR);
+ }
+ fscanf(fp, "%12s", state);
fclose(fp);
- /* calculate percent */
- perc = now / (full / 100);
-
- /* return perc as string */
- return smprintf("%d%%", perc);
+ if (strcmp(state, "Charging") == 0) {
+ return smprintf("+");
+ } else if (strcmp(state, "Discharging") == 0) {
+ return smprintf("-");
+ } else if (strcmp(state, "Full") == 0) {
+ return smprintf("=");
+ } else {
+ return smprintf("?");
+ }
}
-/* cpu percentage */
-char *
-cpu_perc(const char *null)
+static char *
+cpu_perc(void)
{
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.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/stat", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/stat");
+ return smprintf(UNKNOWN_STR);
}
-
- /* read values */
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
-
- /* close stat file */
fclose(fp);
- /* wait a second (for avg values) */
- sleep(1);
+ delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1));
+ sleep(delay);
- /* open stat file */
- if (!(fp = fopen("/proc/stat","r"))) {
- fprintf(stderr, "Error opening stat file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/stat", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/stat");
+ return smprintf(UNKNOWN_STR);
}
-
- /* read values */
fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
-
- /* close stat file */
fclose(fp);
- /* calculate avg in this second */
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 perc as string */
return smprintf("%d%%", perc);
}
-/* date and time */
-char *
-datetime(const char *timeformat)
+static char *
+datetime(const char *fmt)
{
- time_t tm;
- size_t bufsize = 64;
- char *buf = malloc(bufsize);
- if (buf == NULL) {
- fprintf(stderr, "Failed to get date/time.\n");
- return smprintf(unknowntext);
- }
+ time_t t;
+ char str[80];
- /* 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(unknowntext);
+ t = time(NULL);
+ if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
+ return smprintf(UNKNOWN_STR);
}
- setlocale(LC_TIME, "C");
- /* return time */
- char *ret = smprintf("%s", buf);
- free(buf);
- return ret;
+ return smprintf("%s", str);
}
-/* disk free */
-char *
-disk_free(const char *mountpoint)
+static char *
+disk_free(const char *mnt)
{
struct statvfs fs;
- /* try to open mountpoint */
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info.\n");
- return smprintf(unknowntext);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ return smprintf(UNKNOWN_STR);
}
- /* 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)
+static char *
+disk_perc(const char *mnt)
{
- int perc = 0;
+ int perc;
struct statvfs fs;
- /* try to open mountpoint */
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info.\n");
- return smprintf(unknowntext);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ return smprintf(UNKNOWN_STR);
}
- /* 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)
+static char *
+disk_total(const char *mnt)
{
struct statvfs fs;
- /* try to open mountpoint */
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info.\n");
- return smprintf(unknowntext);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ return smprintf(UNKNOWN_STR);
}
- /* return total */
return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
}
-/* disk used */
-char *
-disk_used(const char *mountpoint)
+static char *
+disk_used(const char *mnt)
{
struct statvfs fs;
- /* try to open mountpoint */
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info.\n");
- return smprintf(unknowntext);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ return smprintf(UNKNOWN_STR);
}
- /* 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)
+static char *
+entropy(void)
{
- int entropy = 0;
+ int num;
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(unknowntext);
+ fp= fopen("/proc/sys/kernel/random/entropy_avail", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
+ return smprintf(UNKNOWN_STR);
}
-
- /* extract entropy */
- fscanf(fp, "%d", &entropy);
-
- /* close entropy file */
+ fscanf(fp, "%d", &num);
fclose(fp);
- /* return entropy */
- return smprintf("%d", entropy);
+ return smprintf("%d", num);
}
-/* gid */
-char *
-gid(const char *null)
+static char *
+gid(void)
{
- gid_t gid;
-
- if ((gid = getgid()) < 0) {
- fprintf(stderr, "Could no get gid.\n");
- return smprintf(unknowntext);
- } else {
- return smprintf("%d", gid);
- }
-
- return smprintf(unknowntext);
+ return smprintf("%d", getgid());
}
-/* hostname */
-char *
-hostname(const char *null)
+static char *
+hostname(void)
{
- char hostname[HOST_NAME_MAX];
- FILE *fp;
+ char buf[HOST_NAME_MAX];
- /* open hostname file */
- if (!(fp = fopen("/proc/sys/kernel/hostname", "r"))) {
- fprintf(stderr, "Could not open hostname file.\n");
- return smprintf(unknowntext);
+ if (gethostname(buf, sizeof(buf)) == -1) {
+ warn("hostname");
+ return smprintf(UNKNOWN_STR);
}
- /* extract hostname */
- fscanf(fp, "%s\n", hostname);
-
- /* close hostname file */
- fclose(fp);
-
- /* return entropy */
- return smprintf("%s", hostname);
+ return smprintf("%s", buf);
}
-/* ip address */
-char *
-ip(const char *interface)
+static char *
+ip(const char *iface)
{
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.\n");
- return smprintf(unknowntext);
+ warn("Failed to get IP address for interface %s", iface);
+ return smprintf(UNKNOWN_STR);
}
- /* get the ip address */
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
- if (ifa->ifa_addr == NULL)
+ 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 ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
if (s != 0) {
- fprintf(stderr, "Error getting IP address.\n");
- return smprintf(unknowntext);
+ warnx("Failed to get IP address for interface %s", iface);
+ return smprintf(UNKNOWN_STR);
}
return smprintf("%s", host);
}
}
- /* free the address */
freeifaddrs(ifaddr);
- return smprintf(unknowntext);
+ return smprintf(UNKNOWN_STR);
}
-/* load avg */
-char *
-load_avg(const char *null)
+static char *
+load_avg(void)
{
double avgs[3];
- /* try to get load avg */
if (getloadavg(avgs, 3) < 0) {
- fprintf(stderr, "Error getting load avg.\n");
- return smprintf(unknowntext);
+ warnx("Failed to get the load avg");
+ return smprintf(UNKNOWN_STR);
}
- /* return it */
return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
}
-/* ram free */
-char *
-ram_free(const char *null)
+static char *
+ram_free(void)
{
long free;
FILE *fp;
- /* open meminfo file */
- if (!(fp = fopen("/proc/meminfo", "r"))) {
- fprintf(stderr, "Error opening meminfo file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
}
-
- /* read the values */
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_perc(const char *null)
+static char *
+ram_perc(void)
{
- int perc;
long total, free, buffers, cached;
FILE *fp;
- /* open meminfo file */
- if (!(fp = fopen("/proc/meminfo", "r"))) {
- fprintf(stderr, "Error opening meminfo file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
}
-
- /* 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 percentage */
- perc = 100 * ((total - free) - (buffers + cached)) / total;
-
- /* return perc as string */
- return smprintf("%d%%", perc);
+ return smprintf("%d%%", 100 * ((total - free) - (buffers + cached)) / total);
}
-/* ram total */
-char *
-ram_total(const char *null)
+static char *
+ram_total(void)
{
long total;
FILE *fp;
- /* open meminfo file */
- if (!(fp = fopen("/proc/meminfo", "r"))) {
- fprintf(stderr, "Error opening meminfo file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
}
-
- /* 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)
+static char *
+ram_used(void)
{
- long free, total, buffers, cached, used;
+ long free, total, buffers, cached;
FILE *fp;
- /* open meminfo file */
- if (!(fp = fopen("/proc/meminfo", "r"))) {
- fprintf(stderr, "Error opening meminfo file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
}
-
- /* 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);
+ return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
}
-/* custom shell command */
-char *
-run_command(const char* command)
+static char *
+run_command(const char *cmd)
{
- int good;
FILE *fp;
- char buffer[64];
+ char buf[1024] = "n/a";
- /* try to open the command output */
- if (!(fp = popen(command, "r"))) {
- fprintf(stderr, "Could not get command output for: %s.\n", command);
- return smprintf(unknowntext);
+ fp = popen(cmd, "r");
+ if (fp == NULL) {
+ warn("Failed to get command output for %s", cmd);
+ return smprintf(UNKNOWN_STR);
}
+ fgets(buf, sizeof(buf)-1, fp);
+ pclose(fp);
- /* get command output text, save it to buffer */
- fgets(buffer, sizeof(buffer) - 1, fp);
+ buf[strlen(buf)] = '\0';
+ strtok(buf, "\n");
- /* close it again */
- pclose(fp);
+ return smprintf("%s", buf);
+}
- /* add nullchar at the end */
- for (int i = 0 ; i != sizeof(buffer); i++) {
- if (buffer[i] == '\0') {
- good = 1;
- break;
- }
+static char *
+swap_free(void)
+{
+ long total, free;
+ FILE *fp;
+ char buf[2048];
+ size_t bytes_read;
+ char *match;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
+ }
+ bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
+ buf[bytes_read] = '\0';
+ fclose(fp);
+ if (bytes_read == 0 || bytes_read == sizeof(buf)) {
+ warn("Failed to read /proc/meminfo\n");
+ return smprintf(UNKNOWN_STR);
}
- if (good)
- buffer[strlen(buffer) - 1] = '\0';
- /* return the output */
- return smprintf("%s", buffer);
+ match = strstr(buf, "SwapTotal");
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+ if (total == 0) {
+ return smprintf(UNKNOWN_STR);
+ }
+
+ match = strstr(buf, "SwapFree");
+ sscanf(match, "SwapFree: %ld kB\n", &free);
+
+ return smprintf("%f", (float)free / 1024 / 1024);
}
-/* temperature */
-char *
-temp(const char *file)
+static char *
+swap_perc(void)
{
- int temperature;
+ long total, free, cached;
FILE *fp;
+ char buf[2048];
+ size_t bytes_read;
+ char *match;
- /* open temperature file */
- if (!(fp = fopen(file, "r"))) {
- fprintf(stderr, "Could not open temperature file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
+ }
+ bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
+ buf[bytes_read] = '\0';
+ fclose(fp);
+ if (bytes_read == 0 || bytes_read == sizeof(buf)) {
+ warn("Failed to read /proc/meminfo\n");
+ return smprintf(UNKNOWN_STR);
}
- /* extract temperature */
- fscanf(fp, "%d", &temperature);
+ match = strstr(buf, "SwapTotal");
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+ if (total == 0) {
+ return smprintf(UNKNOWN_STR);
+ }
- /* close temperature file */
- fclose(fp);
+ match = strstr(buf, "SwapCached");
+ sscanf(match, "SwapCached: %ld kB\n", &cached);
- /* return temperature in degrees */
- return smprintf("%d°C", temperature / 1000);
+ match = strstr(buf, "SwapFree");
+ sscanf(match, "SwapFree: %ld kB\n", &free);
+
+ return smprintf("%d%%", 100 * (total - free - cached) / total);
}
-/* uptime */
-char *
-uptime(const char *null)
+static char *
+swap_total(void)
{
- struct sysinfo info;
- int hours = 0;
- int minutes = 0;
+ long total;
+ FILE *fp;
+ char buf[2048];
+ size_t bytes_read;
+ char *match;
- /* get info */
- sysinfo(&info);
- hours = info.uptime / 3600;
- minutes = (info.uptime - hours * 3600 ) / 60;
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
+ }
+ bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
+ buf[bytes_read] = '\0';
+ fclose(fp);
+ if (bytes_read == 0 || bytes_read == sizeof(buf)) {
+ warn("Failed to read /proc/meminfo\n");
+ return smprintf(UNKNOWN_STR);
+ }
+
+ match = strstr(buf, "SwapTotal");
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+ if (total == 0) {
+ return smprintf(UNKNOWN_STR);
+ }
- /* return it */
- return smprintf("%dh %dm", hours, minutes);
+ return smprintf("%f", (float)total / 1024 / 1024);
}
-/* username */
-char *
-username(const char *null)
+static char *
+swap_used(void)
{
- register struct passwd *pw;
- register uid_t uid;
+ long total, free, cached;
+ FILE *fp;
+ char buf[2048];
+ size_t bytes_read;
+ char *match;
- /* get the values */
- uid = geteuid();
- pw = getpwuid(uid);
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/meminfo");
+ return smprintf(UNKNOWN_STR);
+ }
+ bytes_read = fread(buf, sizeof(char), sizeof(buf), fp);
+ buf[bytes_read] = '\0';
+ fclose(fp);
+ if (bytes_read == 0 || bytes_read == sizeof(buf)) {
+ warn("Failed to read /proc/meminfo\n");
+ return smprintf(UNKNOWN_STR);
+ }
- /* if it worked, return */
- if (pw)
- return smprintf("%s", pw->pw_name);
- else {
- fprintf(stderr, "Could not get username.\n");
- return smprintf(unknowntext);
+ match = strstr(buf, "SwapTotal");
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+ if (total == 0) {
+ return smprintf(UNKNOWN_STR);
}
- return smprintf(unknowntext);
+ match = strstr(buf, "SwapCached");
+ sscanf(match, "SwapCached: %ld kB\n", &cached);
+
+ match = strstr(buf, "SwapFree");
+ sscanf(match, "SwapFree: %ld kB\n", &free);
+
+ return smprintf("%f", (float)(total - free - cached) / 1024 / 1024);
}
-/* uid */
-char *
-uid(const char *null)
+static char *
+temp(const char *file)
{
- register uid_t uid;
+ int temp;
+ FILE *fp;
- /* get the values */
- uid = geteuid();
+ fp = fopen(file, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", file);
+ return smprintf(UNKNOWN_STR);
+ }
+ fscanf(fp, "%d", &temp);
+ fclose(fp);
+
+ return smprintf("%d°C", temp / 1000);
+}
+
+static char *
+uptime(void)
+{
+ struct sysinfo info;
+ int h = 0;
+ int m = 0;
+
+ sysinfo(&info);
+ h = info.uptime / 3600;
+ m = (info.uptime - h * 3600 ) / 60;
- /* if it worked, return */
- if (uid)
- return smprintf("%d", uid);
- else {
- fprintf(stderr, "Could not get uid.\n");
- return smprintf(unknowntext);
+ return smprintf("%dh %dm", h, m);
+}
+
+static char *
+username(void)
+{
+ uid_t uid = geteuid();
+ struct passwd *pw = getpwuid(uid);
+
+ if (pw == NULL) {
+ warn("Failed to get username");
+ return smprintf(UNKNOWN_STR);
}
- return smprintf(unknowntext);
+ return smprintf("%s", pw->pw_name);
+}
+
+static char *
+uid(void)
+{
+ return smprintf("%d", geteuid());
}
-/* alsa volume percentage */
-char *
-vol_perc(const char *soundcard)
+static char *
+vol_perc(const char *card)
{
- int mute = 0;
- long vol = 0, max = 0, min = 0;
+ int mute;
+ long int vol, max, min;
snd_mixer_t *handle;
- snd_mixer_elem_t *pcm_mixer, *mas_mixer;
- snd_mixer_selem_id_t *vol_info, *mute_info;
+ snd_mixer_elem_t *elem;
+ snd_mixer_selem_id_t *s_elem;
- /* open everything */
snd_mixer_open(&handle, 0);
- snd_mixer_attach(handle, soundcard);
+ snd_mixer_attach(handle, 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);
- /* 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.\n");
- return smprintf(unknowntext);
- }
- 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);
-
- /* clean up */
- if (vol_info)
- snd_mixer_selem_id_free(vol_info);
- if (mute_info)
- snd_mixer_selem_id_free(mute_info);
- if (handle)
+ if (elem == NULL) {
+ snd_mixer_selem_id_free(s_elem);
snd_mixer_close(handle);
+ warn("Failed to get volume percentage for %s", card);
+ 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_get_playback_switch(elem, 0, &mute);
+
+ snd_mixer_selem_id_free(s_elem);
+ snd_mixer_close(handle);
- /* return the string (mute) */
if (!mute)
return smprintf("mute");
+ else if (max == 0)
+ return smprintf("0%%");
else
- return smprintf("%d%%", (vol * 100) / max);
+ return smprintf("%lu%%", ((uint_fast16_t)(vol * 100) / max));
}
-/* wifi percentage */
-char *
-wifi_perc(const char *wificard)
+static char *
+wifi_perc(const char *iface)
{
- int bufsize = 255;
- int strength;
- char buf[bufsize];
+ int perc;
+ char buf[255];
char *datastart;
- char path[64];
char status[5];
- char needle[sizeof wificard + 1];
FILE *fp;
- /* generate the path name */
- memset(path, 0, sizeof path);
- strlcat(path, "/sys/class/net/", sizeof(path));
- strlcat(path, wificard, sizeof(path));
- strlcat(path, "/operstate", sizeof(path));
-
- /* open wifi file */
- if(!(fp = fopen(path, "r"))) {
- fprintf(stderr, "Error opening wifi operstate file.\n");
- return smprintf(unknowntext);
+ ccat(3, "/sys/class/net/", iface, "/operstate");
+ fp = fopen(concat, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", concat);
+ return smprintf(UNKNOWN_STR);
}
-
- /* read the status */
fgets(status, 5, fp);
-
- /* close wifi file */
fclose(fp);
+ if(strcmp(status, "up\n") != 0) {
+ return smprintf(UNKNOWN_STR);
+ }
- /* check if interface down */
- if(strcmp(status, "up\n") != 0)
- return smprintf(unknowntext);
-
- /* open wifi file */
- if (!(fp = fopen("/proc/net/wireless", "r"))) {
- fprintf(stderr, "Error opening wireless file.\n");
- return smprintf(unknowntext);
+ fp = fopen("/proc/net/wireless", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/net/wireless");
+ return smprintf(UNKNOWN_STR);
}
+ ccat(2, iface, ":");
+ fgets(buf, sizeof(buf), fp);
+ fgets(buf, sizeof(buf), fp);
+ fgets(buf, sizeof(buf), fp);
+ fclose(fp);
- /* extract the signal strength */
- strlcpy(needle, wificard, sizeof(needle));
- strlcat(needle, ":", sizeof(needle));
- fgets(buf, bufsize, fp);
- fgets(buf, bufsize, fp);
- fgets(buf, bufsize, fp);
- if ((datastart = strstr(buf, needle)) != NULL) {
+ datastart = strstr(buf, concat);
+ if (datastart != NULL) {
datastart = strstr(buf, ":");
- sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
+ sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
}
- /* close wifi file */
- fclose(fp);
-
- /* return strength in percent */
- return smprintf("%d%%", strength);
+ return smprintf("%d%%", perc);
}
-/* wifi essid */
-char *
-wifi_essid(const char *wificard)
+static char *
+wifi_essid(const char *iface)
{
char id[IW_ESSID_MAX_SIZE+1];
- int sockfd;
+ int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
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(unknowntext);
+ sprintf(wreq.ifr_name, iface);
+ if (sockfd == -1) {
+ warn("Failed to get ESSID for interface %s", iface);
+ return smprintf(UNKNOWN_STR);
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
- fprintf(stderr, "Get ESSID ioctl failed for interface %s\n", wificard);
- return smprintf(unknowntext);
+ warn("Failed to get ESSID for interface %s", iface);
+ return smprintf(UNKNOWN_STR);
}
- /* return the essid */
+ close(sockfd);
+
if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
- return smprintf(unknowntext);
+ return smprintf(UNKNOWN_STR);
else
return smprintf("%s", (char *)wreq.u.essid.pointer);
}
-/* main function */
+static void
+set_status(const char *str)
+{
+ XStoreName(dpy, DefaultRootWindow(dpy), str);
+ XSync(dpy, False);
+}
+
+static void
+sighandler(const int signo)
+{
+ if (signo == SIGTERM || signo == SIGINT) {
+ done = 1;
+ }
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s [-dhov]\n", argv0);
+ exit(1);
+}
+
int
-main(void)
+main(int argc, char *argv[])
{
- char status_string[1024];
+ unsigned short int i;
+ char status_string[4096];
+ char *res, *element;
struct arg argument;
+ struct sigaction act;
+
+ ARGBEGIN {
+ case 'd':
+ dflag = 1;
+ break;
+ case 'o':
+ oflag = 1;
+ break;
+ case 'v':
+ printf("slstatus %s (C) 2016 slstatus engineers\n", VERSION);
+ return 0;
+ default:
+ usage();
+ } ARGEND
+
+ if (dflag && oflag) {
+ usage();
+ }
+ if (dflag && daemon(1, 1) < 0) {
+ err(1, "daemon");
+ }
+
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = sighandler;
+ sigaction(SIGINT, &act, 0);
+ sigaction(SIGTERM, &act, 0);
- /* try to open display */
- if (!(dpy = XOpenDisplay(0x0))) {
- fprintf(stderr, "Cannot open display!\n");
- exit(1);
+ if (!oflag) {
+ dpy = XOpenDisplay(NULL);
}
- /* return status every interval */
- for (;;) {
- /* clear the string */
- memset(status_string, 0, sizeof(status_string));
+ setlocale(LC_ALL, "");
- /* generate status_string */
- for (size_t i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
+ while (!done) {
+ status_string[0] = '\0';
+
+ for (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 (argument.args == NULL) {
+ res = argument.func();
+ } else {
+ res = argument.func(argument.args);
+ }
+ element = smprintf(argument.fmt, res);
if (element == NULL) {
- element = smprintf(unknowntext);
- fprintf(stderr, "Failed to format output.\n");
+ element = smprintf(UNKNOWN_STR);
+ warnx("Failed to format output");
}
strlcat(status_string, element, sizeof(status_string));
free(res);
free(element);
}
- /* return the statusbar */
- setstatus(status_string);
+ if (!oflag) {
+ set_status(status_string);
+ } else {
+ printf("%s\n", status_string);
+ }
- /* wait, "update_interval - 1" because of get_cpu_usage() which uses 1 second */
- sleep(update_interval -1);
+ /*
+ * subtract delay time spend in function
+ * calls from the actual global delay time
+ */
+ sleep(UPDATE_INTERVAL - delay);
+ delay = 0;
}
- /* close display */
- XCloseDisplay(dpy);
+ if (!oflag) {
+ set_status(NULL);
+ XCloseDisplay(dpy);
+ }
- /* exit successfully */
return 0;
}