X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/9e92d41db54b5c1128505ed778aa0feb9dd6457f..6b8384ef2f7328580425ac2cc75e0c65a04aa942:/slstatus.c
diff --git a/slstatus.c b/slstatus.c
index 7c625d1..052af87 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -1,12 +1,15 @@
/* 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 <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
@@ -15,659 +18,900 @@
#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 "strlcat.h"
-#include "strlcpy.h"
-
-typedef char *(*op_fun)();
struct arg {
- op_fun func;
- const char *format;
+ const char *(*func)();
+ const char *fmt;
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 const char *bprintf(const char *fmt, ...);
+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);
+static void sighandler(const int signo);
+static void usage(void);
+
+char *argv0;
+static unsigned short int delay = 0;
+static unsigned short int done;
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 buf[MAXLEN];
-static char *
-smprintf(const char *fmt, ...)
+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) {
- perror("malloc");
- exit(1);
- }
-
- 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 *
-battery_perc(const char *battery)
+static const char *
+battery_perc(const char *bat)
{
- int now, full, perc;
- char batterynowfile[64];
- char batteryfullfile[64];
+ int n, perc;
+ char path[PATH_MAX];
FILE *fp;
- strlcpy(batterynowfile, BATTERY_PATH, sizeof(batterynowfile));
- strlcat(batterynowfile, battery, sizeof(batterynowfile));
- strlcat(batterynowfile, "/", sizeof(batterynowfile));
- strlcat(batterynowfile, BATTERY_NOW, sizeof(batterynowfile));
+ 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", path);
+ return UNKNOWN_STR;
+ }
+ n = fscanf(fp, "%i", &perc);
+ fclose(fp);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ return bprintf("%d", perc);
+}
- strlcpy(batteryfullfile, BATTERY_PATH, sizeof(batteryfullfile));
- strlcat(batteryfullfile, battery, sizeof(batteryfullfile));
- strlcat(batteryfullfile, "/", sizeof(batteryfullfile));
- strlcat(batteryfullfile, BATTERY_FULL, sizeof(batteryfullfile));
+static const char *
+battery_power(const char *bat)
+{
+ char path[PATH_MAX];
+ FILE *fp;
+ int n, watts;
- fp = fopen(batterynowfile, "r");
- if (fp == NULL ) {
- fprintf(stderr, "Error opening battery file: %s: %s\n",
- batterynowfile,
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ 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", path);
+ return UNKNOWN_STR;
}
-
- fscanf(fp, "%i", &now);
+ n = fscanf(fp, "%i", &watts);
fclose(fp);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ return bprintf("%d", (watts + 500000) / 1000000);
+}
- fp = fopen(batteryfullfile, "r");
+static const char *
+battery_state(const char *bat)
+{
+ char path[PATH_MAX];
+ char state[12];
+ FILE *fp;
+ int n;
+
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status");
+ fp = fopen(path, "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening battery file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file %s", path);
+ return UNKNOWN_STR;
}
-
- fscanf(fp, "%i", &full);
+ n = fscanf(fp, "%12s", state);
fclose(fp);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ if (strcmp(state, "Charging") == 0) {
+ return "+";
+ } else if (strcmp(state, "Discharging") == 0) {
+ return "-";
+ } else if (strcmp(state, "Full") == 0) {
+ return "=";
+ } else if (strcmp(state, "Unknown") == 0) {
+ return "/";
+ } else {
+ return "?";
+ }
+}
+
+static const char *
+cpu_freq(void)
+{
+ int n, freq;
+ FILE *fp;
- perc = now / (full / 100);
+ 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 smprintf("%d%%", perc);
+ 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 = fopen("/proc/stat","r");
+ FILE *fp;
+ fp = fopen("/proc/stat", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening stat file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/stat");
+ 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;
- /* wait a second (for avg values) */
- sleep(1);
+ delay++;
+ sleep(delay);
- fp = fopen("/proc/stat","r");
+ fp = fopen("/proc/stat", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening stat file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/stat");
+ 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 *
-datetime(const char *timeformat)
+static const char *
+datetime(const char *fmt)
{
time_t t;
- char timestr[80];
t = time(NULL);
- if (strftime(timestr, sizeof(timestr), timeformat, localtime(&t)) == 0)
- return smprintf(UNKNOWN_STR);
+ if (strftime(buf, sizeof(buf), fmt, localtime(&t)) == 0)
+ return UNKNOWN_STR;
- return smprintf("%s", timestr);
+ return buf;
}
-static char *
-disk_free(const char *mountpoint)
+static const char *
+disk_free(const char *mnt)
{
struct statvfs fs;
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ 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 *
-disk_perc(const char *mountpoint)
+static const char *
+disk_perc(const char *mnt)
{
- int perc = 0;
+ int perc;
struct statvfs fs;
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ 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 smprintf("%d%%", perc);
+
+ return bprintf("%d", perc);
}
-static char *
-disk_total(const char *mountpoint)
+static const char *
+disk_total(const char *mnt)
{
struct statvfs fs;
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ 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 *
-disk_used(const char *mountpoint)
+static const char *
+disk_used(const char *mnt)
{
struct statvfs fs;
- if (statvfs(mountpoint, &fs) < 0) {
- fprintf(stderr, "Could not get filesystem info: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ if (statvfs(mnt, &fs) < 0) {
+ warn("Failed to get filesystem info");
+ 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 entropy = 0;
- FILE *fp = fopen("/proc/sys/kernel/random/entropy_avail", "r");
+ int n, num;
+ FILE *fp;
+ 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);
+ warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
+ return UNKNOWN_STR;
}
-
- fscanf(fp, "%d", &entropy);
+ n = fscanf(fp, "%d", &num);
fclose(fp);
- return smprintf("%d", entropy);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ return bprintf("%d", num);
}
-static char *
+static const char *
gid(void)
{
- gid_t gid = getgid();
- return smprintf("%d", gid);
+ return bprintf("%d", getgid());
}
-static char *
+static const 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);
+ if (gethostname(buf, sizeof(buf)) == -1) {
+ warn("hostname");
+ return 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);
+ return buf;
}
-static char *
-ip(const char *interface)
+static const char *
+ip(const char *iface)
{
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);
+ warn("Failed to get IP address for interface %s", iface);
+ return 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)) {
+ }
+ 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) {
- fprintf(stderr, "Error getting IP address.\n");
- return smprintf(UNKNOWN_STR);
+ warnx("Failed to get IP address for interface %s", iface);
+ return UNKNOWN_STR;
}
- return smprintf("%s", host);
+ return bprintf("%s", host);
}
}
- /* free the address */
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;
+ 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) {
- fprintf(stderr, "Error getting load avg.\n");
- return smprintf(UNKNOWN_STR);
+ warnx("Failed to get the load avg");
+ 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 = fopen("/proc/meminfo", "r");
+ FILE *fp;
+ int n;
+ fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening meminfo file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/meminfo");
+ return UNKNOWN_STR;
}
-
- fscanf(fp, "MemFree: %ld kB\n", &free);
+ n = fscanf(fp, "MemFree: %ld kB\n", &free);
fclose(fp);
- return smprintf("%f", (float)free / 1024 / 1024);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ return bprintf("%f", (float)free / 1024 / 1024);
}
-static char *
+static const char *
ram_perc(void)
{
- int perc;
long total, free, buffers, cached;
- FILE *fp = fopen("/proc/meminfo", "r");
+ FILE *fp;
+ fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening meminfo file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/meminfo");
+ 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);
- 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 bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total);
+scanerr:
fclose(fp);
- perc = 100 * ((total - free) - (buffers + cached)) / total;
- return smprintf("%d%%", perc);
+ return UNKNOWN_STR;
}
-static char *
+static const char *
ram_total(void)
{
long total;
- FILE *fp = fopen("/proc/meminfo", "r");
+ FILE *fp;
+ int n;
+ fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening meminfo file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/meminfo");
+ return UNKNOWN_STR;
}
-
- fscanf(fp, "MemTotal: %ld kB\n", &total);
+ n = fscanf(fp, "MemTotal: %ld kB\n", &total);
fclose(fp);
- return smprintf("%f", (float)total / 1024 / 1024);
+ if (n != 1)
+ return UNKNOWN_STR;
+
+ return bprintf("%f", (float)total / 1024 / 1024);
}
-static char *
+static const char *
ram_used(void)
{
- long free, total, buffers, cached, used;
- FILE *fp = fopen("/proc/meminfo", "r");
+ long free, total, buffers, cached;
+ FILE *fp;
+ fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
- fprintf(stderr, "Error opening meminfo file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/meminfo");
+ 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);
- 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 bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
+scanerr:
fclose(fp);
- used = total - free - buffers - cached;
- return smprintf("%f", (float)used / 1024 / 1024);
+ return UNKNOWN_STR;
}
-static char *
-run_command(const char* command)
+static const char *
+run_command(const char *cmd)
{
- int good;
- FILE *fp = popen(command, "r");
- char buffer[64];
+ char *p;
+ FILE *fp;
+ fp = popen(cmd, "r");
if (fp == NULL) {
- fprintf(stderr, "Could not get command output for: %s: %s\n",
- command, strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to get command output for %s", cmd);
+ return UNKNOWN_STR;
}
-
- fgets(buffer, sizeof(buffer)-1, fp);
+ p = fgets(buf, sizeof(buf) - 1, fp);
pclose(fp);
- for (int i = 0 ; i != sizeof(buffer); i++) {
- if (buffer[i] == '\0') {
- good = 1;
- break;
- }
+ 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;
}
- if (good)
- buffer[strlen(buffer)-1] = '\0';
- return smprintf("%s", buffer);
+ 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 char *
-temp(const char *file)
+static const char *
+swap_perc(void)
{
- int temperature;
- FILE *fp = fopen(file, "r");
+ long total, free, cached;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
+ fp = fopen("/proc/meminfo", "r");
if (fp == NULL) {
- fprintf(stderr, "Could not open temperature file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/meminfo");
+ return UNKNOWN_STR;
}
- fscanf(fp, "%d", &temperature);
+ if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
+ warn("swap_perc: read error");
+ fclose(fp);
+ return UNKNOWN_STR;
+ }
fclose(fp);
- return smprintf("%d°C", temperature / 1000);
+
+ 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 char *
-uptime(void)
+static const char *
+swap_total(void)
{
- struct sysinfo info;
- int hours = 0;
- int minutes = 0;
+ long total;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
- 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 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 smprintf("%dh %dm", hours, minutes);
+ return bprintf("%f", (float)total / 1024 / 1024);
}
-static char *
-username(void)
+static const char *
+swap_used(void)
{
- register struct passwd *pw;
- register uid_t uid;
+ 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);
- uid = geteuid();
- pw = getpwuid(uid);
+ if ((match = strstr(buf, "SwapFree")) == NULL)
+ return UNKNOWN_STR;
+ sscanf(match, "SwapFree: %ld kB\n", &free);
- if (pw)
- return smprintf("%s", pw->pw_name);
- else {
- fprintf(stderr, "Could not get username: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
+}
+
+static const char *
+temp(const char *file)
+{
+ int n, temp;
+ FILE *fp;
+
+ fp = fopen(file, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", file);
+ return UNKNOWN_STR;
}
+ n = fscanf(fp, "%d", &temp);
+ fclose(fp);
+ if (n != 1)
+ return UNKNOWN_STR;
- return smprintf(UNKNOWN_STR);
+ return bprintf("%d", temp / 1000);
}
-static char *
-uid(void)
+static const char *
+uptime(void)
{
- /* FIXME: WHY USE register modifier? */
- register uid_t uid;
+ 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);
+}
- uid = geteuid();
+static const char *
+username(void)
+{
+ struct passwd *pw = getpwuid(geteuid());
- if (uid)
- return smprintf("%d", uid);
- else {
- fprintf(stderr, "Could not get uid.\n");
- return smprintf(UNKNOWN_STR);
+ if (pw == NULL) {
+ warn("Failed to get username");
+ return UNKNOWN_STR;
}
- return smprintf(UNKNOWN_STR);
+ return bprintf("%s", pw->pw_name);
}
-
-static char *
-vol_perc(const char *soundcard)
+static const char *
+uid(void)
{
- 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;
+ return bprintf("%d", geteuid());
+}
- 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);
+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;
}
- 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 (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
+ warn("Cannot get volume for %s", card);
+ close(afd);
+ return UNKNOWN_STR;
+ }
+ for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); 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;
+ }
+ }
+ }
- 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);
+ close(afd);
- if (!mute)
- return smprintf("mute");
- else
- return smprintf("%d%%", (vol * 100) / max);
+ return bprintf("%d", v & 0xff);
}
-static char *
-wifi_perc(const char *wificard)
+static const char *
+wifi_perc(const char *iface)
{
- int strength;
- char buf[255];
- char *datastart;
- char path[64];
+ int i, perc;
+ char *p, *datastart;
+ char path[PATH_MAX];
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));
-
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
fp = fopen(path, "r");
-
- if(fp == NULL) {
- fprintf(stderr, "Error opening wifi operstate file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ if (fp == NULL) {
+ 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) {
- fprintf(stderr, "Error opening wireless file: %s\n",
- strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to open file /proc/net/wireless");
+ return 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);
+ for (i = 0; i < 3; i++) {
+ if (!(p = fgets(buf, sizeof(buf) - 1, fp)))
+ break;
}
-
fclose(fp);
- return smprintf("%d%%", strength);
+ 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 char *
-wifi_essid(const char *wificard)
+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, wificard);
- if(sockfd == -1) {
- fprintf(stderr, "Cannot open socket for interface: %s: %s\n",
- wificard, strerror(errno));
- return smprintf(UNKNOWN_STR);
+ 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) {
- fprintf(stderr, "Get ESSID ioctl failed for interface %s: %s\n",
- wificard, strerror(errno));
- return smprintf(UNKNOWN_STR);
+ warn("Failed to get ESSID for interface %s", iface);
+ return UNKNOWN_STR;
}
- if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
- return smprintf(UNKNOWN_STR);
+ close(sockfd);
+
+ if (strcmp(id, "") == 0)
+ return UNKNOWN_STR;
else
- return smprintf("%s", (char *)wreq.u.essid.pointer);
+ return id;
+}
+
+static void
+sighandler(const int signo)
+{
+ if (signo == SIGTERM || signo == SIGINT) {
+ done = 1;
+ }
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s [-s]\n", argv0);
+ exit(1);
}
int
-main(void)
+main(int argc, char *argv[])
{
- size_t 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 's':
+ sflag = 1;
+ break;
+ default:
+ usage();
+ } ARGEND
- dpy = XOpenDisplay(0x0);
- if (!dpy) {
- fprintf(stderr, "Cannot open display!\n");
- exit(1);
+ if (argc) {
+ usage();
}
- for (;;) {
- memset(status_string, 0, sizeof(status_string));
- for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = sighandler;
+ sigaction(SIGINT, &act, 0);
+ sigaction(SIGTERM, &act, 0);
+
+ if (!sflag) {
+ dpy = XOpenDisplay(NULL);
+ }
+
+ setlocale(LC_ALL, "");
+
+ while (!done) {
+ status_string[0] = '\0';
+
+ for (element = status_string, i = len = 0;
+ i < sizeof(args) / sizeof(args[0]);
+ ++i, element += len) {
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");
+ 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;
}
- strlcat(status_string, element, sizeof(status_string));
- free(res);
- free(element);
}
- setstatus(status_string);
- sleep(UPDATE_INTERVAL -1);
+ if (sflag) {
+ printf("%s\n", status_string);
+ } else {
+ XStoreName(dpy, DefaultRootWindow(dpy), status_string);
+ XSync(dpy, False);
+ }
+
+ if ((UPDATE_INTERVAL - delay) <= 0) {
+ delay = 0;
+ continue;
+ } else {
+ sleep(UPDATE_INTERVAL - delay);
+ delay = 0;
+ }
+ }
+
+ if (!sflag) {
+ XStoreName(dpy, DefaultRootWindow(dpy), NULL);
+ XCloseDisplay(dpy);
}
- XCloseDisplay(dpy);
return 0;
}