X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/8fa622975991d1fb539ffab50c98f0d2d7d6da1c..b11dd2db0ebfc0b20ef2d5a972f13cf39bdd0b31:/slstatus.c

diff --git a/slstatus.c b/slstatus.c
index b80bb7f..53e1946 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -1,6 +1,5 @@
 /* See LICENSE file for copyright and license details. */
 
-#include <alsa/asoundlib.h>
 #include <err.h>
 #include <fcntl.h>
 #include <ifaddrs.h>
@@ -18,6 +17,7 @@
 #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>
@@ -25,11 +25,7 @@
 #include <unistd.h>
 #include <X11/Xlib.h>
 
-#undef strlcat
-
-#include "extern/arg.h"
-#include "extern/strlcat.h"
-#include "extern/concat.h"
+#include "arg.h"
 
 struct arg {
 	char *(*func)();
@@ -51,6 +47,7 @@ static char *gid(void);
 static char *hostname(void);
 static char *ip(const char *iface);
 static char *kernel_release(void);
+static char *keyboard_indicators(void);
 static char *load_avg(void);
 static char *ram_free(void);
 static char *ram_perc(void);
@@ -69,10 +66,9 @@ static char *vol_perc(const char *card);
 static char *wifi_perc(const char *iface);
 static char *wifi_essid(const char *iface);
 static void sighandler(const int signo);
-static void usage(int);
+static void usage(const int eval);
 
 char *argv0;
-char concat[];
 static unsigned short int delay = 0;
 static unsigned short int done;
 static unsigned short int dflag, oflag;
@@ -107,12 +103,13 @@ static char *
 battery_perc(const char *bat)
 {
 	int 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);
+		warn("Failed to open file %s", path);
 		return smprintf("%s", UNKNOWN_STR);
 	}
 	fscanf(fp, "%i", &perc);
@@ -124,13 +121,14 @@ battery_perc(const char *bat)
 static char *
 battery_state(const char *bat)
 {
+	char path[PATH_MAX];
 	char state[12];
 	FILE *fp;
 
-	ccat(3, "/sys/class/power_supply/", bat, "/status");
-	fp = fopen(concat, "r");
+	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", concat);
+		warn("Failed to open file %s", path);
 		return smprintf("%s", UNKNOWN_STR);
 	}
 	fscanf(fp, "%12s", state);
@@ -325,6 +323,29 @@ kernel_release(void)
 	return smprintf("%s", udata.release);
 }
 
+static char *
+keyboard_indicators(void)
+{
+	Display *dpy = XOpenDisplay(NULL);
+	XKeyboardState state;
+	XGetKeyboardControl(dpy, &state);
+	XCloseDisplay(dpy);
+
+	switch (state.led_mask) {
+		case 1:
+			return smprintf("c");
+			break;
+		case 2:
+			return smprintf("n");
+			break;
+		case 3:
+			return smprintf("cn");
+			break;
+		default:
+			return smprintf("");
+	}
+}
+
 static char *
 load_avg(void)
 {
@@ -426,7 +447,7 @@ run_command(const char *cmd)
 	}
 	fgets(buf, sizeof(buf), fp);
 	pclose(fp);
-	buf[strlen(buf)] = '\0';
+	buf[sizeof(buf)] = '\0';
 
 	if ((nlptr = strstr(buf, "\n")) != NULL) {
 		nlptr[0] = '\0';
@@ -641,41 +662,28 @@ uid(void)
 static char *
 vol_perc(const char *card)
 {
-	int mute;
-	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);
+	unsigned int i;
+	int v, afd, devmask;
+	char *vnames[] = SOUND_DEVICE_NAMES;
 
-	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("%s", UNKNOWN_STR);
+	afd = open(card, O_RDONLY);
+	if (afd < 0) {
+		warn("Cannot open %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);
+	ioctl(afd, MIXER_READ(SOUND_MIXER_DEVMASK), &devmask);
+	for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) {
+		if (devmask & (1 << i)) {
+			if (!strcmp("vol", vnames[i])) {
+				ioctl(afd, MIXER_READ(i), &v);
+			}
+		}
+	}
 
-	snd_mixer_selem_id_free(s_elem);
-	snd_mixer_close(handle);
+	close(afd);
 
-	if (!mute)
-		return smprintf("mute");
-	else if (max == 0)
-		return smprintf("0%%");
-	else
-		return smprintf("%lu%%", ((uint_fast16_t)(vol * 100) / max));
+	return smprintf("%d%%", v & 0xff);
 }
 
 static char *
@@ -684,13 +692,14 @@ wifi_perc(const char *iface)
 	int perc;
 	char buf[255];
 	char *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);
+		warn("Failed to open file %s", path);
 		return smprintf("%s", UNKNOWN_STR);
 	}
 	fgets(status, 5, fp);
@@ -704,13 +713,13 @@ wifi_perc(const char *iface)
 		warn("Failed to open file /proc/net/wireless");
 		return smprintf("%s", UNKNOWN_STR);
 	}
-	ccat(2, iface, ":");
+
 	fgets(buf, sizeof(buf), fp);
 	fgets(buf, sizeof(buf), fp);
 	fgets(buf, sizeof(buf), fp);
 	fclose(fp);
 
-	if ((datastart = strstr(buf, concat)) == NULL) {
+	if ((datastart = strstr(buf, iface)) == NULL) {
 		return smprintf("%s", UNKNOWN_STR);
 	}
 	datastart = (datastart+(strlen(iface)+1));
@@ -757,7 +766,7 @@ sighandler(const int signo)
 }
 
 static void
-usage(int eval)
+usage(const int eval)
 {
 	fprintf(stderr, "usage: %s [-d] [-o] [-v] [-h]\n", argv0);
 	exit(eval);
@@ -780,7 +789,7 @@ main(int argc, char *argv[])
 			oflag = 1;
 			break;
 		case 'v':
-			printf("slstatus (C) 2016 slstatus engineers\n");
+			printf("slstatus (C) 2016-2017 slstatus engineers\n");
 			return 0;
 		case 'h':
 			usage(0);
@@ -821,9 +830,7 @@ main(int argc, char *argv[])
 				element = smprintf("%s", UNKNOWN_STR);
 				warnx("Failed to format output");
 			}
-			if (strlcat(status_string, element, sizeof(status_string)) >= sizeof(status_string)) {
-				warnx("Output too long");
-			}
+			strncat(status_string, element, sizeof(status_string) - strlen(status_string) - 1);
 			free(res);
 			free(element);
 		}