/* See LICENSE file for copyright and license details. */
-
-#include <alsa/asoundlib.h>
+#include <dirent.h>
#include <err.h>
#include <fcntl.h>
#include <ifaddrs.h>
#include <limits.h>
#include <linux/wireless.h>
+#include <locale.h>
#include <netdb.h>
#include <pwd.h>
#include <signal.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>
-#undef strlcat
-#undef strlcpy
+#include "arg.h"
-#include "extern/arg.h"
-#include "extern/strlcat.h"
-#include "extern/strlcpy.h"
-#include "extern/concat.h"
+#define LEN(x) (sizeof (x) / sizeof *(x))
struct arg {
- char *(*func)();
+ const char *(*func)();
const char *fmt;
const char *args;
};
-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 *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);
+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;
-char concat[];
-static unsigned short int delay;
+static unsigned short int delay = 0;
static unsigned short int done;
-static unsigned short int dflag, oflag;
static Display *dpy;
#include "config.h"
-static char *
-smprintf(const char *fmt, ...)
+static char buf[MAXLEN];
+
+static const char *
+bprintf(const char *fmt, ...)
{
va_list ap;
- char *ret;
- int len;
+ size_t len;
va_start(ap, fmt);
- len = vsnprintf(NULL, 0, fmt, ap);
+ len = vsnprintf(buf, sizeof(buf) - 1, 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);
+ if (len >= sizeof(buf))
+ buf[sizeof(buf)-1] = '\0';
- return ret;
+ return buf;
}
-static char *
+static const char *
battery_perc(const char *bat)
{
- int perc;
+ int n, perc;
+ char path[PATH_MAX];
FILE *fp;
- ccat(3, "/sys/class/power_supply/", bat, "/capacity");
- fp = fopen(concat, "r");
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/capacity");
+ fp = fopen(path, "r");
if (fp == NULL) {
- warn("Failed to open file %s", concat);
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file %s", path);
+ return unknown_str;
}
- fscanf(fp, "%i", &perc);
+ n = fscanf(fp, "%i", &perc);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
- return smprintf("%d%%", perc);
+ return bprintf("%d", perc);
}
-static char *
-battery_state(const char *bat)
+static const char *
+battery_power(const char *bat)
{
- char state[12];
+ char path[PATH_MAX];
FILE *fp;
+ int n, watts;
- ccat(3, "/sys/class/power_supply/", bat, "/status");
- fp = fopen(concat, "r");
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/power_now");
+ fp = fopen(path, "r");
if (fp == NULL) {
- warn("Failed to open file %s", concat);
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file %s", path);
+ return unknown_str;
}
- fscanf(fp, "%12s", state);
+ n = fscanf(fp, "%i", &watts);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
+
+ return bprintf("%d", (watts + 500000) / 1000000);
+}
- 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("?");
+static const char *
+battery_state(const char *bat)
+{
+ FILE *fp;
+ struct {
+ char *state;
+ char *symbol;
+ } map[] = {
+ { "Charging", "+" },
+ { "Discharging", "-" },
+ { "Full", "=" },
+ { "Unknown", "/" },
+ };
+ size_t i;
+ int n;
+ char path[PATH_MAX], state[12];
+
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status");
+ fp = fopen(path, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", path);
+ return unknown_str;
+ }
+ n = fscanf(fp, "%12s", state);
+ fclose(fp);
+ if (n != 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 n, freq;
+ FILE *fp;
+
+ fp = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
+ return unknown_str;
+ }
+ n = fscanf(fp, "%i", &freq);
+ fclose(fp);
+ if (n != 1)
+ return unknown_str;
+
+ return bprintf("%d", (freq + 500) / 1000);
}
-static char *
+static const char *
cpu_perc(void)
{
- int perc;
+ int n, perc;
long double a[4], b[4];
FILE *fp;
fp = fopen("/proc/stat", "r");
if (fp == NULL) {
warn("Failed to open file /proc/stat");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
+ n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
fclose(fp);
+ if (n != 4)
+ return unknown_str;
- delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1));
+ delay++;
sleep(delay);
fp = fopen("/proc/stat", "r");
if (fp == NULL) {
warn("Failed to open file /proc/stat");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
+ n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
fclose(fp);
+ if (n != 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 smprintf("%d%%", perc);
+ return bprintf("%d", perc);
}
-static char *
+static const char *
datetime(const char *fmt)
{
time_t t;
- char str[80];
t = time(NULL);
- if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
- return smprintf(UNKNOWN_STR);
- }
+ if (strftime(buf, sizeof(buf), fmt, localtime(&t)) == 0)
+ return unknown_str;
- return smprintf("%s", str);
+ return buf;
}
-static char *
+static const char *
disk_free(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
+ return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
}
-static char *
+static const char *
disk_perc(const char *mnt)
{
int perc;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
- return smprintf("%d%%", perc);
+ return bprintf("%d", perc);
}
-static char *
+static const char *
disk_total(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
+ return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
}
-static char *
+static const char *
disk_used(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
+ return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
}
-static char *
+static const char *
entropy(void)
{
- int num;
+ int n, num;
FILE *fp;
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);
+ return unknown_str;
}
- fscanf(fp, "%d", &num);
+ n = fscanf(fp, "%d", &num);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
- return smprintf("%d", num);
+ return bprintf("%d", num);
}
-static char *
+static const char *
gid(void)
{
- return smprintf("%d", getgid());
+ return bprintf("%d", getgid());
}
-static char *
+static const char *
hostname(void)
{
- char buf[HOST_NAME_MAX];
- FILE *fp;
-
- fp = fopen("/proc/sys/kernel/hostname", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/sys/kernel/hostname");
- return smprintf(UNKNOWN_STR);
+ if (gethostname(buf, sizeof(buf)) == -1) {
+ warn("hostname");
+ return unknown_str;
}
- fgets(buf, sizeof(buf), fp);
- buf[strlen(buf)-1] = '\0';
- fclose(fp);
- return smprintf("%s", buf);
+ return buf;
}
-static char *
+static const char *
ip(const char *iface)
{
struct ifaddrs *ifaddr, *ifa;
if (getifaddrs(&ifaddr) == -1) {
warn("Failed to get IP address for interface %s", iface);
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
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 smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%s", host);
+ return bprintf("%s", host);
}
}
freeifaddrs(ifaddr);
- return smprintf(UNKNOWN_STR);
+ 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 char *
+static const char *
load_avg(void)
{
double avgs[3];
if (getloadavg(avgs, 3) < 0) {
warnx("Failed to get the load avg");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
+ return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
}
-static char *
+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;
FILE *fp;
+ int n;
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fscanf(fp, "MemFree: %ld kB\n", &free);
+ n = fscanf(fp, "MemFree: %ld kB\n", &free);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
- return smprintf("%f", (float)free / 1024 / 1024);
+ return bprintf("%f", (float)free / 1024 / 1024);
}
-static char *
+static const char *
ram_perc(void)
{
long total, free, buffers, cached;
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
- 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);
+ return unknown_str;
+ }
+ if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 ||
+ fscanf(fp, "MemFree: %ld kB\n", &free) != 1 ||
+ fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n",
+ &buffers, &buffers) != 2 ||
+ fscanf(fp, "Cached: %ld kB\n", &cached) != 1)
+ goto scanerr;
fclose(fp);
- return smprintf("%d%%", 100 * ((total - free) - (buffers + cached)) / total);
+ return bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total);
+
+scanerr:
+ fclose(fp);
+ return unknown_str;
}
-static char *
+static const char *
ram_total(void)
{
long total;
FILE *fp;
+ int n;
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fscanf(fp, "MemTotal: %ld kB\n", &total);
+ n = fscanf(fp, "MemTotal: %ld kB\n", &total);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
- return smprintf("%f", (float)total / 1024 / 1024);
+ return bprintf("%f", (float)total / 1024 / 1024);
}
-static char *
+static const char *
ram_used(void)
{
long free, total, buffers, cached;
fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
warn("Failed to open file /proc/meminfo");
- 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);
+ return unknown_str;
+ }
+ if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 ||
+ fscanf(fp, "MemFree: %ld kB\n", &free) != 1 ||
+ fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n",
+ &buffers, &buffers) != 2 ||
+ fscanf(fp, "Cached: %ld kB\n", &cached) != 1)
+ goto scanerr;
fclose(fp);
- return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
+ return bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
+
+scanerr:
+ fclose(fp);
+ return unknown_str;
}
-static char *
+static const char *
run_command(const char *cmd)
{
+ char *p;
FILE *fp;
- char buf[64] = "n/a";
fp = popen(cmd, "r");
if (fp == NULL) {
warn("Failed to get command output for %s", cmd);
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fgets(buf, sizeof(buf), fp);
- buf[sizeof(buf)-1] = '\0';
+ 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);
- return smprintf("%s", buf);
+ 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 char *
+static const char *
temp(const char *file)
{
- int temp;
+ int n, temp;
FILE *fp;
fp = fopen(file, "r");
if (fp == NULL) {
warn("Failed to open file %s", file);
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- fscanf(fp, "%d", &temp);
+ n = fscanf(fp, "%d", &temp);
fclose(fp);
+ if (n != 1)
+ return unknown_str;
- return smprintf("%d°C", temp / 1000);
+ return bprintf("%d", temp / 1000);
}
-static char *
+static const char *
uptime(void)
{
struct sysinfo info;
h = info.uptime / 3600;
m = (info.uptime - h * 3600 ) / 60;
- return smprintf("%dh %dm", h, m);
+ return bprintf("%dh %dm", h, m);
}
-static char *
+static const char *
username(void)
{
- uid_t uid = geteuid();
- struct passwd *pw = getpwuid(uid);
+ struct passwd *pw = getpwuid(geteuid());
if (pw == NULL) {
warn("Failed to get username");
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- return smprintf("%s", pw->pw_name);
+ return bprintf("%s", pw->pw_name);
}
-static char *
+static const char *
uid(void)
{
- return smprintf("%d", geteuid());
+ return bprintf("%d", geteuid());
}
-static char *
+static const char *
vol_perc(const char *card)
{
- 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, 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("Failed to get volume percentage for %s", card);
- return smprintf(UNKNOWN_STR);
+ 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;
+ }
+ }
}
- 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);
+ close(afd);
- if (max == 0)
- return smprintf("%d%%", 0);
- else
- return smprintf("%d%%", ((uint_fast16_t)(vol * 100) / max));
+ return bprintf("%d", v & 0xff);
}
-static char *
+static const char *
wifi_perc(const char *iface)
{
- int perc;
- char buf[255];
- char *datastart;
+ int i, perc;
+ char *p, *datastart;
+ char path[PATH_MAX];
char status[5];
FILE *fp;
- ccat(3, "/sys/class/net/", iface, "/operstate");
- fp = fopen(concat, "r");
+ 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", concat);
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file %s", path);
+ return unknown_str;
}
- fgets(status, 5, fp);
+ p = fgets(status, 5, fp);
fclose(fp);
- if(strcmp(status, "up\n") != 0) {
- return smprintf(UNKNOWN_STR);
+ 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 smprintf(UNKNOWN_STR);
+ return unknown_str;
}
- ccat(2, iface, ":");
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fclose(fp);
- datastart = strstr(buf, concat);
- if (datastart != NULL) {
- datastart = strstr(buf, ":");
- sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
+ 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 smprintf("%d%%", perc);
+ return bprintf("%d", perc);
}
-static char *
+static const char *
wifi_essid(const char *iface)
{
- char id[IW_ESSID_MAX_SIZE+1];
+ 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;
- sprintf(wreq.ifr_name, iface);
+ snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
+
if (sockfd == -1) {
warn("Failed to get ESSID for interface %s", iface);
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
warn("Failed to get ESSID for interface %s", iface);
- return smprintf(UNKNOWN_STR);
+ return unknown_str;
}
close(sockfd);
- if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
- return smprintf(UNKNOWN_STR);
+ if (strcmp(id, "") == 0)
+ return unknown_str;
else
- return smprintf("%s", (char *)wreq.u.essid.pointer);
-}
-
-static void
-set_status(const char *str)
-{
- XStoreName(dpy, DefaultRootWindow(dpy), str);
- XSync(dpy, False);
+ return id;
}
static void
static void
usage(void)
{
- fprintf(stderr, "usage: %s [-dhov]\n", argv0);
+ fprintf(stderr, "usage: %s [-s]\n", argv0);
exit(1);
}
int
main(int argc, char *argv[])
{
- unsigned short int i;
- char status_string[4096];
- char *res, *element;
struct arg argument;
struct sigaction act;
+ size_t i, len;
+ int sflag = 0;
+ char status_string[MAXLEN];
+ char *element;
ARGBEGIN {
- case 'd':
- dflag = 1;
- break;
- case 'o':
- oflag = 1;
+ case 's':
+ sflag = 1;
break;
- case 'v':
- printf("slstatus %s (C) 2016 slstatus engineers\n", VERSION);
- return 0;
default:
usage();
} ARGEND
- if (dflag && oflag) {
+ if (argc) {
usage();
}
- if (dflag) {
- (void)daemon(1, 1);
- }
memset(&act, 0, sizeof(act));
act.sa_handler = sighandler;
sigaction(SIGINT, &act, 0);
sigaction(SIGTERM, &act, 0);
- if (!oflag) {
+ if (!sflag) {
dpy = XOpenDisplay(NULL);
+ if (!dpy) {
+ fprintf(stderr, "slstatus: cannot open display");
+ exit(1);
+ }
}
+ setlocale(LC_ALL, "");
+
while (!done) {
status_string[0] = '\0';
- for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
+ for (element = status_string, i = len = 0; i < LEN(args);
+ ++i, element += len) {
argument = args[i];
- if (argument.args == NULL) {
- res = argument.func();
- } else {
- res = argument.func(argument.args);
+ len = snprintf(element, sizeof(status_string)-1 - len,
+ argument.fmt,
+ argument.func(argument.args));
+ if (len >= sizeof(status_string)) {
+ status_string[sizeof(status_string)-1] = '\0';
+ break;
}
- element = smprintf(argument.fmt, res);
- if (element == NULL) {
- element = smprintf(UNKNOWN_STR);
- warnx("Failed to format output");
- }
- strlcat(status_string, element, sizeof(status_string));
- free(res);
- free(element);
}
- if (!oflag) {
- set_status(status_string);
- } else {
+ if (sflag) {
printf("%s\n", status_string);
+ } else {
+ 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;
+ if ((update_interval - delay) <= 0) {
+ delay = 0;
+ continue;
+ } else {
+ sleep(update_interval - delay);
+ delay = 0;
+ }
}
- if (!oflag) {
- set_status(NULL);
+ if (!sflag) {
+ XStoreName(dpy, DefaultRootWindow(dpy), NULL);
XCloseDisplay(dpy);
}