removed scripts added slstatus (this is pretty good)

slstatus/components/battery.c

@@ -0,0 +1,247 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__linux__)
+/*
+ * https://www.kernel.org/doc/html/latest/power/power_supply_class.html
+ */
+	#include <limits.h>
+	#include <stdint.h>
+	#include <unistd.h>
+
+	#define POWER_SUPPLY_CAPACITY "/sys/class/power_supply/%s/capacity"
+	#define POWER_SUPPLY_STATUS   "/sys/class/power_supply/%s/status"
+	#define POWER_SUPPLY_CHARGE   "/sys/class/power_supply/%s/charge_now"
+	#define POWER_SUPPLY_ENERGY   "/sys/class/power_supply/%s/energy_now"
+	#define POWER_SUPPLY_CURRENT  "/sys/class/power_supply/%s/current_now"
+	#define POWER_SUPPLY_POWER    "/sys/class/power_supply/%s/power_now"
+
+	static const char *
+	pick(const char *bat, const char *f1, const char *f2, char *path,
+	     size_t length)
+	{
+		if (esnprintf(path, length, f1, bat) > 0 &&
+		    access(path, R_OK) == 0)
+			return f1;
+
+		if (esnprintf(path, length, f2, bat) > 0 &&
+		    access(path, R_OK) == 0)
+			return f2;
+
+		return NULL;
+	}
+
+	const char *
+	battery_perc(const char *bat)
+	{
+		int cap_perc;
+		char path[PATH_MAX];
+
+		if (esnprintf(path, sizeof(path), POWER_SUPPLY_CAPACITY, bat) < 0)
+			return NULL;
+		if (pscanf(path, "%d", &cap_perc) != 1)
+			return NULL;
+
+		return bprintf("%d", cap_perc);
+	}
+
+	const char *
+	battery_state(const char *bat)
+	{
+		static struct {
+			char *state;
+			char *symbol;
+		} map[] = {
+			{ "Charging",    "+" },
+			{ "Discharging", "-" },
+			{ "Full",        "o" },
+			{ "Not charging", "o" },
+		};
+		size_t i;
+		char path[PATH_MAX], state[12];
+
+		if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
+			return NULL;
+		if (pscanf(path, "%12[a-zA-Z ]", state) != 1)
+			return NULL;
+
+		for (i = 0; i < LEN(map); i++)
+			if (!strcmp(map[i].state, state))
+				break;
+
+		return (i == LEN(map)) ? "?" : map[i].symbol;
+	}
+
+	const char *
+	battery_remaining(const char *bat)
+	{
+		uintmax_t charge_now, current_now, m, h;
+		double timeleft;
+		char path[PATH_MAX], state[12];
+
+		if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
+			return NULL;
+		if (pscanf(path, "%12[a-zA-Z ]", state) != 1)
+			return NULL;
+
+		if (!pick(bat, POWER_SUPPLY_CHARGE, POWER_SUPPLY_ENERGY, path,
+		          sizeof(path)) ||
+		    pscanf(path, "%ju", &charge_now) < 0)
+			return NULL;
+
+		if (!strcmp(state, "Discharging")) {
+			if (!pick(bat, POWER_SUPPLY_CURRENT, POWER_SUPPLY_POWER, path,
+			          sizeof(path)) ||
+			    pscanf(path, "%ju", &current_now) < 0)
+				return NULL;
+
+			if (current_now == 0)
+				return NULL;
+
+			timeleft = (double)charge_now / (double)current_now;
+			h = timeleft;
+			m = (timeleft - (double)h) * 60;
+
+			return bprintf("%juh %jum", h, m);
+		}
+
+		return "";
+	}
+#elif defined(__OpenBSD__)
+	#include <fcntl.h>
+	#include <machine/apmvar.h>
+	#include <sys/ioctl.h>
+	#include <unistd.h>
+
+	static int
+	load_apm_power_info(struct apm_power_info *apm_info)
+	{
+		int fd;
+
+		fd = open("/dev/apm", O_RDONLY);
+		if (fd < 0) {
+			warn("open '/dev/apm':");
+			return 0;
+		}
+
+		memset(apm_info, 0, sizeof(struct apm_power_info));
+		if (ioctl(fd, APM_IOC_GETPOWER, apm_info) < 0) {
+			warn("ioctl 'APM_IOC_GETPOWER':");
+			close(fd);
+			return 0;
+		}
+		return close(fd), 1;
+	}
+
+	const char *
+	battery_perc(const char *unused)
+	{
+		struct apm_power_info apm_info;
+
+		if (load_apm_power_info(&apm_info))
+			return bprintf("%d", apm_info.battery_life);
+
+		return NULL;
+	}
+
+	const char *
+	battery_state(const char *unused)
+	{
+		struct {
+			unsigned int state;
+			char *symbol;
+		} map[] = {
+			{ APM_AC_ON,      "+" },
+			{ APM_AC_OFF,     "-" },
+		};
+		struct apm_power_info apm_info;
+		size_t i;
+
+		if (load_apm_power_info(&apm_info)) {
+			for (i = 0; i < LEN(map); i++)
+				if (map[i].state == apm_info.ac_state)
+					break;
+
+			return (i == LEN(map)) ? "?" : map[i].symbol;
+		}
+
+		return NULL;
+	}
+
+	const char *
+	battery_remaining(const char *unused)
+	{
+		struct apm_power_info apm_info;
+		unsigned int h, m;
+
+		if (load_apm_power_info(&apm_info)) {
+			if (apm_info.ac_state != APM_AC_ON) {
+				h = apm_info.minutes_left / 60;
+				m = apm_info.minutes_left % 60;
+				return bprintf("%uh %02um", h, m);
+			} else {
+				return "";
+			}
+		}
+
+		return NULL;
+	}
+#elif defined(__FreeBSD__)
+	#include <sys/sysctl.h>
+
+	#define BATTERY_LIFE  "hw.acpi.battery.life"
+	#define BATTERY_STATE "hw.acpi.battery.state"
+	#define BATTERY_TIME  "hw.acpi.battery.time"
+
+	const char *
+	battery_perc(const char *unused)
+	{
+		int cap_perc;
+		size_t len;
+
+		len = sizeof(cap_perc);
+		if (sysctlbyname(BATTERY_LIFE, &cap_perc, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		return bprintf("%d", cap_perc);
+	}
+
+	const char *
+	battery_state(const char *unused)
+	{
+		int state;
+		size_t len;
+
+		len = sizeof(state);
+		if (sysctlbyname(BATTERY_STATE, &state, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		switch (state) {
+		case 0: /* FALLTHROUGH */
+		case 2:
+			return "+";
+		case 1:
+			return "-";
+		default:
+			return "?";
+		}
+	}
+
+	const char *
+	battery_remaining(const char *unused)
+	{
+		int rem;
+		size_t len;
+
+		len = sizeof(rem);
+		if (sysctlbyname(BATTERY_TIME, &rem, &len, NULL, 0) < 0 || !len
+		    || rem < 0)
+			return NULL;
+
+		return bprintf("%uh %02um", rem / 60, rem % 60);
+	}
+#endif

slstatus/components/cat.c

@@ -0,0 +1,32 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+cat(const char *path)
+{
+        char *f;
+        FILE *fp;
+
+        if (!(fp = fopen(path, "r"))) {
+                warn("fopen '%s':", path);
+                return NULL;
+        }
+
+        f = fgets(buf, sizeof(buf) - 1, fp);
+        if (fclose(fp) < 0) {
+                warn("fclose '%s':", path);
+                return NULL;
+        }
+        if (!f)
+                return NULL;
+
+        if ((f = strrchr(buf, '\n')))
+                f[0] = '\0';
+
+        return buf[0] ? buf : NULL;
+}
+

slstatus/components/cpu.c

@@ -0,0 +1,157 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__linux__)
+	#define CPU_FREQ "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"
+
+	const char *
+	cpu_freq(const char *unused)
+	{
+		uintmax_t freq;
+
+		/* in kHz */
+		if (pscanf(CPU_FREQ, "%ju", &freq) != 1)
+			return NULL;
+
+		return fmt_human(freq * 1000, 1000);
+	}
+
+	const char *
+	cpu_perc(const char *unused)
+	{
+		static long double a[7];
+		long double b[7], sum;
+
+		memcpy(b, a, sizeof(b));
+		/* cpu user nice system idle iowait irq softirq */
+		if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf",
+		           &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6])
+		    != 7)
+			return NULL;
+
+		if (b[0] == 0)
+			return NULL;
+
+		sum = (b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
+		      (a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]);
+
+		if (sum == 0)
+			return NULL;
+
+		return bprintf("%d", (int)(100 *
+		               ((b[0] + b[1] + b[2] + b[5] + b[6]) -
+		                (a[0] + a[1] + a[2] + a[5] + a[6])) / sum));
+	}
+#elif defined(__OpenBSD__)
+	#include <sys/param.h>
+	#include <sys/sched.h>
+	#include <sys/sysctl.h>
+
+	const char *
+	cpu_freq(const char *unused)
+	{
+		int freq, mib[2];
+		size_t size;
+
+		mib[0] = CTL_HW;
+		mib[1] = HW_CPUSPEED;
+
+		size = sizeof(freq);
+
+		/* in MHz */
+		if (sysctl(mib, 2, &freq, &size, NULL, 0) < 0) {
+			warn("sysctl 'HW_CPUSPEED':");
+			return NULL;
+		}
+
+		return fmt_human(freq * 1E6, 1000);
+	}
+
+	const char *
+	cpu_perc(const char *unused)
+	{
+		int mib[2];
+		static uintmax_t a[CPUSTATES];
+		uintmax_t b[CPUSTATES], sum;
+		size_t size;
+
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_CPTIME;
+
+		size = sizeof(a);
+
+		memcpy(b, a, sizeof(b));
+		if (sysctl(mib, 2, &a, &size, NULL, 0) < 0) {
+			warn("sysctl 'KERN_CPTIME':");
+			return NULL;
+		}
+		if (b[0] == 0)
+			return NULL;
+
+		sum = (a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] + a[CP_IDLE]) -
+		      (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]);
+
+		if (sum == 0)
+			return NULL;
+
+		return bprintf("%d", 100 *
+		               ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] +
+		                 a[CP_INTR]) -
+		                (b[CP_USER] + b[CP_NICE] + b[CP_SYS] +
+		                 b[CP_INTR])) / sum);
+	}
+#elif defined(__FreeBSD__)
+	#include <devstat.h>
+	#include <sys/param.h>
+	#include <sys/sysctl.h>
+
+	const char *
+	cpu_freq(const char *unused)
+	{
+		int freq;
+		size_t size;
+
+		size = sizeof(freq);
+		/* in MHz */
+		if (sysctlbyname("hw.clockrate", &freq, &size, NULL, 0) < 0 || !size) {
+			warn("sysctlbyname 'hw.clockrate':");
+			return NULL;
+		}
+
+		return fmt_human(freq * 1E6, 1000);
+	}
+
+	const char *
+	cpu_perc(const char *unused)
+	{
+		size_t size;
+		static long a[CPUSTATES];
+		long b[CPUSTATES], sum;
+
+		size = sizeof(a);
+		memcpy(b, a, sizeof(b));
+		if (sysctlbyname("kern.cp_time", &a, &size, NULL, 0) < 0 || !size) {
+			warn("sysctlbyname 'kern.cp_time':");
+			return NULL;
+		}
+		if (b[0] == 0)
+			return NULL;
+
+		sum = (a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] + a[CP_IDLE]) -
+		      (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]);
+
+		if (sum == 0)
+			return NULL;
+
+		return bprintf("%d", 100 *
+		               ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] +
+		                 a[CP_INTR]) -
+		                (b[CP_USER] + b[CP_NICE] + b[CP_SYS] +
+		                 b[CP_INTR])) / sum);
+	}
+#endif

slstatus/components/datetime.c

@@ -0,0 +1,20 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <time.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+datetime(const char *fmt)
+{
+	time_t t;
+
+	t = time(NULL);
+	if (!strftime(buf, sizeof(buf), fmt, localtime(&t))) {
+		warn("strftime: Result string exceeds buffer size");
+		return NULL;
+	}
+
+	return buf;
+}

slstatus/components/disk.c

@@ -0,0 +1,59 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <sys/statvfs.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+disk_free(const char *path)
+{
+	struct statvfs fs;
+
+	if (statvfs(path, &fs) < 0) {
+		warn("statvfs '%s':", path);
+		return NULL;
+	}
+
+	return fmt_human(fs.f_frsize * fs.f_bavail, 1024);
+}
+
+const char *
+disk_perc(const char *path)
+{
+	struct statvfs fs;
+
+	if (statvfs(path, &fs) < 0) {
+		warn("statvfs '%s':", path);
+		return NULL;
+	}
+
+	return bprintf("%d", (int)(100 *
+	               (1 - ((double)fs.f_bavail / (double)fs.f_blocks))));
+}
+
+const char *
+disk_total(const char *path)
+{
+	struct statvfs fs;
+
+	if (statvfs(path, &fs) < 0) {
+		warn("statvfs '%s':", path);
+		return NULL;
+	}
+
+	return fmt_human(fs.f_frsize * fs.f_blocks, 1024);
+}
+
+const char *
+disk_used(const char *path)
+{
+	struct statvfs fs;
+
+	if (statvfs(path, &fs) < 0) {
+		warn("statvfs '%s':", path);
+		return NULL;
+	}
+
+	return fmt_human(fs.f_frsize * (fs.f_blocks - fs.f_bfree), 1024);
+}

slstatus/components/entropy.c

@@ -0,0 +1,29 @@
+/* See LICENSE file for copyright and license details. */
+#include "../slstatus.h"
+#if defined(__linux__)
+	#include <stdint.h>
+	#include <stdio.h>
+
+	#include "../util.h"
+
+	#define ENTROPY_AVAIL "/proc/sys/kernel/random/entropy_avail"
+
+	const char *
+	entropy(const char *unused)
+	{
+		uintmax_t num;
+
+		if (pscanf(ENTROPY_AVAIL, "%ju", &num) != 1)
+			return NULL;
+
+		return bprintf("%ju", num);
+	}
+#elif defined(__OpenBSD__) | defined(__FreeBSD__)
+	const char *
+	entropy(const char *unused)
+	{
+		// https://www.unicode.org/charts/PDF/U2200.pdf
+		/* Unicode Character 'INFINITY' (U+221E) */
+		return "\u221E";
+	}
+#endif

slstatus/components/hostname.c

@@ -0,0 +1,17 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <unistd.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+hostname(const char *unused)
+{
+	if (gethostname(buf, sizeof(buf)) < 0) {
+		warn("gethostbyname:");
+		return NULL;
+	}
+
+	return buf;
+}

slstatus/components/ip.c

@@ -0,0 +1,87 @@
+/* See LICENSE file for copyright and license details. */
+#include <ifaddrs.h>
+#include <netdb.h>
+#include <net/if.h>
+#include <stdio.h>
+#include <string.h>
+#if defined(__OpenBSD__)
+	#include <sys/socket.h>
+	#include <sys/types.h>
+#elif defined(__FreeBSD__)
+	#include <netinet/in.h>
+	#include <sys/socket.h>
+#endif
+
+#include "../slstatus.h"
+#include "../util.h"
+
+static const char *
+ip(const char *interface, unsigned short sa_family)
+{
+	struct ifaddrs *ifaddr, *ifa;
+	int s;
+	char host[NI_MAXHOST];
+
+	if (getifaddrs(&ifaddr) < 0) {
+		warn("getifaddrs:");
+		return NULL;
+	}
+
+	for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+		if (!ifa->ifa_addr)
+			continue;
+
+		s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in6),
+		                host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
+		if (!strcmp(ifa->ifa_name, interface) &&
+		    (ifa->ifa_addr->sa_family == sa_family)) {
+			freeifaddrs(ifaddr);
+			if (s != 0) {
+				warn("getnameinfo: %s", gai_strerror(s));
+				return NULL;
+			}
+			return bprintf("%s", host);
+		}
+	}
+
+	freeifaddrs(ifaddr);
+
+	return NULL;
+}
+
+const char *
+ipv4(const char *interface)
+{
+	return ip(interface, AF_INET);
+}
+
+const char *
+ipv6(const char *interface)
+{
+	return ip(interface, AF_INET6);
+}
+
+const char *
+up(const char *interface)
+{
+	struct ifaddrs *ifaddr, *ifa;
+
+	if (getifaddrs(&ifaddr) < 0) {
+		warn("getifaddrs:");
+		return NULL;
+	}
+
+	for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+		if (!ifa->ifa_addr)
+			continue;
+
+		if (!strcmp(ifa->ifa_name, interface)) {
+			freeifaddrs(ifaddr);
+			return ifa->ifa_flags & IFF_UP ? "up" : "down";
+		}
+	}
+
+	freeifaddrs(ifaddr);
+
+	return NULL;
+}

slstatus/components/kernel_release.c

@@ -0,0 +1,19 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <sys/utsname.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+kernel_release(const char *unused)
+{
+	struct utsname udata;
+
+	if (uname(&udata) < 0) {
+		warn("uname:");
+		return NULL;
+	}
+
+	return bprintf("%s", udata.release);
+}

slstatus/components/keyboard_indicators.c

@@ -0,0 +1,50 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+/*
+ * fmt consists of uppercase or lowercase 'c' for caps lock and/or 'n' for num
+ * lock, each optionally followed by '?', in the order of indicators desired.
+ * If followed by '?', the letter with case preserved is included in the output
+ * if the corresponding indicator is on.  Otherwise, the letter is always
+ * included, lowercase when off and uppercase when on.
+ */
+const char *
+keyboard_indicators(const char *fmt)
+{
+	Display *dpy;
+	XKeyboardState state;
+	size_t fmtlen, i, n;
+	int togglecase, isset;
+	char key;
+
+	if (!(dpy = XOpenDisplay(NULL))) {
+		warn("XOpenDisplay: Failed to open display");
+		return NULL;
+	}
+	XGetKeyboardControl(dpy, &state);
+	XCloseDisplay(dpy);
+
+	fmtlen = strnlen(fmt, 4);
+	for (i = n = 0; i < fmtlen; i++) {
+		key = tolower(fmt[i]);
+		if (key != 'c' && key != 'n')
+			continue;
+
+		togglecase = (i + 1 >= fmtlen || fmt[i + 1] != '?');
+		isset = (state.led_mask & (1 << (key == 'n')));
+
+		if (togglecase)
+			buf[n++] = isset ? toupper(key) : key;
+		else if (isset)
+			buf[n++] = fmt[i];
+	}
+
+	buf[n] = 0;
+	return buf;
+}

slstatus/components/keymap.c

@@ -0,0 +1,86 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <X11/XKBlib.h>
+#include <X11/Xlib.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+static int
+valid_layout_or_variant(char *sym)
+{
+	size_t i;
+	/* invalid symbols from xkb rules config */
+	static const char *invalid[] = { "evdev", "inet", "pc", "base" };
+
+	for (i = 0; i < LEN(invalid); i++)
+		if (!strncmp(sym, invalid[i], strlen(invalid[i])))
+			return 0;
+
+	return 1;
+}
+
+static char *
+get_layout(char *syms, int grp_num)
+{
+	char *tok, *layout;
+	int grp;
+
+	layout = NULL;
+	tok = strtok(syms, "+:_");
+	for (grp = 0; tok && grp <= grp_num; tok = strtok(NULL, "+:_")) {
+		if (!valid_layout_or_variant(tok)) {
+			continue;
+		} else if (strlen(tok) == 1 && isdigit(tok[0])) {
+			/* ignore :2, :3, :4 (additional layout groups) */
+			continue;
+		}
+		layout = tok;
+		grp++;
+	}
+
+	return layout;
+}
+
+const char *
+keymap(const char *unused)
+{
+	Display *dpy;
+	XkbDescRec *desc;
+	XkbStateRec state;
+	char *symbols;
+	const char *layout;
+
+	layout = NULL;
+
+	if (!(dpy = XOpenDisplay(NULL))) {
+		warn("XOpenDisplay: Failed to open display");
+		return NULL;
+	}
+	if (!(desc = XkbAllocKeyboard())) {
+		warn("XkbAllocKeyboard: Failed to allocate keyboard");
+		goto end;
+	}
+	if (XkbGetNames(dpy, XkbSymbolsNameMask, desc)) {
+		warn("XkbGetNames: Failed to retrieve key symbols");
+		goto end;
+	}
+	if (XkbGetState(dpy, XkbUseCoreKbd, &state)) {
+		warn("XkbGetState: Failed to retrieve keyboard state");
+		goto end;
+	}
+	if (!(symbols = XGetAtomName(dpy, desc->names->symbols))) {
+		warn("XGetAtomName: Failed to get atom name");
+		goto end;
+	}
+	layout = bprintf("%s", get_layout(symbols, state.group));
+	XFree(symbols);
+end:
+	XkbFreeKeyboard(desc, XkbSymbolsNameMask, 1);
+	if (XCloseDisplay(dpy))
+		warn("XCloseDisplay: Failed to close display");
+
+	return layout;
+}

slstatus/components/load_avg.c

@@ -0,0 +1,19 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+load_avg(const char *unused)
+{
+	double avgs[3];
+
+	if (getloadavg(avgs, 3) < 0) {
+		warn("getloadavg: Failed to obtain load average");
+		return NULL;
+	}
+
+	return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
+}

slstatus/components/netspeeds.c

@@ -0,0 +1,129 @@
+/* See LICENSE file for copyright and license details. */
+#include <limits.h>
+#include <stdio.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__linux__)
+	#include <stdint.h>
+
+	#define NET_RX_BYTES "/sys/class/net/%s/statistics/rx_bytes"
+	#define NET_TX_BYTES "/sys/class/net/%s/statistics/tx_bytes"
+
+	const char *
+	netspeed_rx(const char *interface)
+	{
+		uintmax_t oldrxbytes;
+		static uintmax_t rxbytes;
+		extern const unsigned int interval;
+		char path[PATH_MAX];
+
+		oldrxbytes = rxbytes;
+
+		if (esnprintf(path, sizeof(path), NET_RX_BYTES, interface) < 0)
+			return NULL;
+		if (pscanf(path, "%ju", &rxbytes) != 1)
+			return NULL;
+		if (oldrxbytes == 0)
+			return NULL;
+
+		return fmt_human((rxbytes - oldrxbytes) * 1000 / interval,
+		                 1024);
+	}
+
+	const char *
+	netspeed_tx(const char *interface)
+	{
+		uintmax_t oldtxbytes;
+		static uintmax_t txbytes;
+		extern const unsigned int interval;
+		char path[PATH_MAX];
+
+		oldtxbytes = txbytes;
+
+		if (esnprintf(path, sizeof(path), NET_TX_BYTES, interface) < 0)
+			return NULL;
+		if (pscanf(path, "%ju", &txbytes) != 1)
+			return NULL;
+		if (oldtxbytes == 0)
+			return NULL;
+
+		return fmt_human((txbytes - oldtxbytes) * 1000 / interval,
+		                 1024);
+	}
+#elif defined(__OpenBSD__) | defined(__FreeBSD__)
+	#include <ifaddrs.h>
+	#include <net/if.h>
+	#include <string.h>
+	#include <sys/types.h>
+	#include <sys/socket.h>
+
+	const char *
+	netspeed_rx(const char *interface)
+	{
+		struct ifaddrs *ifal, *ifa;
+		struct if_data *ifd;
+		uintmax_t oldrxbytes;
+		static uintmax_t rxbytes;
+		extern const unsigned int interval;
+		int if_ok = 0;
+
+		oldrxbytes = rxbytes;
+
+		if (getifaddrs(&ifal) < 0) {
+			warn("getifaddrs failed");
+			return NULL;
+		}
+		rxbytes = 0;
+		for (ifa = ifal; ifa; ifa = ifa->ifa_next)
+			if (!strcmp(ifa->ifa_name, interface) &&
+			   (ifd = (struct if_data *)ifa->ifa_data))
+				rxbytes += ifd->ifi_ibytes, if_ok = 1;
+
+		freeifaddrs(ifal);
+		if (!if_ok) {
+			warn("reading 'if_data' failed");
+			return NULL;
+		}
+		if (oldrxbytes == 0)
+			return NULL;
+
+		return fmt_human((rxbytes - oldrxbytes) * 1000 / interval,
+		                 1024);
+	}
+
+	const char *
+	netspeed_tx(const char *interface)
+	{
+		struct ifaddrs *ifal, *ifa;
+		struct if_data *ifd;
+		uintmax_t oldtxbytes;
+		static uintmax_t txbytes;
+		extern const unsigned int interval;
+		int if_ok = 0;
+
+		oldtxbytes = txbytes;
+
+		if (getifaddrs(&ifal) < 0) {
+			warn("getifaddrs failed");
+			return NULL;
+		}
+		txbytes = 0;
+		for (ifa = ifal; ifa; ifa = ifa->ifa_next)
+			if (!strcmp(ifa->ifa_name, interface) &&
+			   (ifd = (struct if_data *)ifa->ifa_data))
+				txbytes += ifd->ifi_obytes, if_ok = 1;
+
+		freeifaddrs(ifal);
+		if (!if_ok) {
+			warn("reading 'if_data' failed");
+			return NULL;
+		}
+		if (oldtxbytes == 0)
+			return NULL;
+
+		return fmt_human((txbytes - oldtxbytes) * 1000 / interval,
+		                 1024);
+	}
+#endif

slstatus/components/num_files.c

@@ -0,0 +1,32 @@
+/* See LICENSE file for copyright and license details. */
+#include <dirent.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+num_files(const char *path)
+{
+	struct dirent *dp;
+	DIR *dir;
+	int num;
+
+	if (!(dir = opendir(path))) {
+		warn("opendir '%s':", path);
+		return NULL;
+	}
+
+	num = 0;
+	while ((dp = readdir(dir))) {
+		if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
+			continue; /* skip self and parent */
+
+		num++;
+	}
+
+	closedir(dir);
+
+	return bprintf("%d", num);
+}

slstatus/components/ram.c

@@ -0,0 +1,212 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__linux__)
+	#include <stdint.h>
+
+	const char *
+	ram_free(const char *unused)
+	{
+		uintmax_t free;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %ju kB\n"
+		           "MemFree: %ju kB\n"
+		           "MemAvailable: %ju kB\n",
+		           &free, &free, &free) != 3)
+			return NULL;
+
+		return fmt_human(free * 1024, 1024);
+	}
+
+	const char *
+	ram_perc(const char *unused)
+	{
+		uintmax_t total, free, buffers, cached;
+		int percent;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %ju kB\n"
+		           "MemFree: %ju kB\n"
+		           "MemAvailable: %ju kB\n"
+		           "Buffers: %ju kB\n"
+		           "Cached: %ju kB\n",
+		           &total, &free, &buffers, &buffers, &cached) != 5)
+			return NULL;
+
+		if (total == 0)
+			return NULL;
+
+		percent = 100 * ((total - free) - (buffers + cached)) / total;
+		return bprintf("%d", percent);
+	}
+
+	const char *
+	ram_total(const char *unused)
+	{
+		uintmax_t total;
+
+		if (pscanf("/proc/meminfo", "MemTotal: %ju kB\n", &total)
+		    != 1)
+			return NULL;
+
+		return fmt_human(total * 1024, 1024);
+	}
+
+	const char *
+	ram_used(const char *unused)
+	{
+		uintmax_t total, free, buffers, cached, used;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %ju kB\n"
+		           "MemFree: %ju kB\n"
+		           "MemAvailable: %ju kB\n"
+		           "Buffers: %ju kB\n"
+		           "Cached: %ju kB\n",
+		           &total, &free, &buffers, &buffers, &cached) != 5)
+			return NULL;
+
+		used = (total - free - buffers - cached);
+		return fmt_human(used * 1024, 1024);
+	}
+#elif defined(__OpenBSD__)
+	#include <stdlib.h>
+	#include <sys/sysctl.h>
+	#include <sys/types.h>
+	#include <unistd.h>
+
+	#define LOG1024 10
+	#define pagetok(size, pageshift) (size_t)(size << (pageshift - LOG1024))
+
+	inline int
+	load_uvmexp(struct uvmexp *uvmexp)
+	{
+		int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
+		size_t size;
+
+		size = sizeof(*uvmexp);
+
+		if (sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0)
+			return 1;
+
+		return 0;
+	}
+
+	const char *
+	ram_free(const char *unused)
+	{
+		struct uvmexp uvmexp;
+		int free_pages;
+
+		if (!load_uvmexp(&uvmexp))
+			return NULL;
+
+		free_pages = uvmexp.npages - uvmexp.active;
+		return fmt_human(pagetok(free_pages, uvmexp.pageshift) *
+				 1024, 1024);
+	}
+
+	const char *
+	ram_perc(const char *unused)
+	{
+		struct uvmexp uvmexp;
+		int percent;
+
+		if (!load_uvmexp(&uvmexp))
+			return NULL;
+
+		percent = uvmexp.active * 100 / uvmexp.npages;
+		return bprintf("%d", percent);
+	}
+
+	const char *
+	ram_total(const char *unused)
+	{
+		struct uvmexp uvmexp;
+
+		if (!load_uvmexp(&uvmexp))
+			return NULL;
+
+		return fmt_human(pagetok(uvmexp.npages,
+					 uvmexp.pageshift) * 1024, 1024);
+	}
+
+	const char *
+	ram_used(const char *unused)
+	{
+		struct uvmexp uvmexp;
+
+		if (!load_uvmexp(&uvmexp))
+			return NULL;
+
+		return fmt_human(pagetok(uvmexp.active,
+					 uvmexp.pageshift) * 1024, 1024);
+	}
+#elif defined(__FreeBSD__)
+	#include <sys/sysctl.h>
+	#include <sys/vmmeter.h>
+	#include <unistd.h>
+	#include <vm/vm_param.h>
+
+	const char *
+	ram_free(const char *unused) {
+		struct vmtotal vm_stats;
+		int mib[] = {CTL_VM, VM_TOTAL};
+		size_t len;
+
+		len = sizeof(struct vmtotal);
+		if (sysctl(mib, 2, &vm_stats, &len, NULL, 0) < 0
+		    || !len)
+			return NULL;
+
+		return fmt_human(vm_stats.t_free * getpagesize(), 1024);
+	}
+
+	const char *
+	ram_total(const char *unused) {
+		unsigned int npages;
+		size_t len;
+
+		len = sizeof(npages);
+		if (sysctlbyname("vm.stats.vm.v_page_count",
+		                 &npages, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		return fmt_human(npages * getpagesize(), 1024);
+	}
+
+	const char *
+	ram_perc(const char *unused) {
+		unsigned int npages;
+		unsigned int active;
+		size_t len;
+
+		len = sizeof(npages);
+		if (sysctlbyname("vm.stats.vm.v_page_count",
+		                 &npages, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		if (sysctlbyname("vm.stats.vm.v_active_count",
+		                 &active, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		return bprintf("%d", active * 100 / npages);
+	}
+
+	const char *
+	ram_used(const char *unused) {
+		unsigned int active;
+		size_t len;
+
+		len = sizeof(active);
+		if (sysctlbyname("vm.stats.vm.v_active_count",
+		                 &active, &len, NULL, 0) < 0 || !len)
+			return NULL;
+
+		return fmt_human(active * getpagesize(), 1024);
+	}
+#endif

slstatus/components/run_command.c

@@ -0,0 +1,31 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+run_command(const char *cmd)
+{
+	char *p;
+	FILE *fp;
+
+	if (!(fp = popen(cmd, "r"))) {
+		warn("popen '%s':", cmd);
+		return NULL;
+	}
+
+	p = fgets(buf, sizeof(buf) - 1, fp);
+	if (pclose(fp) < 0) {
+		warn("pclose '%s':", cmd);
+		return NULL;
+	}
+	if (!p)
+		return NULL;
+
+	if ((p = strrchr(buf, '\n')))
+		p[0] = '\0';
+
+	return buf[0] ? buf : NULL;
+}

slstatus/components/swap.c

@@ -0,0 +1,274 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__linux__)
+	static int
+	get_swap_info(long *s_total, long *s_free, long *s_cached)
+	{
+		FILE *fp;
+		struct {
+			const char *name;
+			const size_t len;
+			long *var;
+		} ent[] = {
+			{ "SwapTotal",  sizeof("SwapTotal") - 1,  s_total  },
+			{ "SwapFree",   sizeof("SwapFree") - 1,   s_free   },
+			{ "SwapCached", sizeof("SwapCached") - 1, s_cached },
+		};
+		size_t line_len = 0, i, left;
+		char *line = NULL;
+
+		/* get number of fields we want to extract */
+		for (i = 0, left = 0; i < LEN(ent); i++)
+			if (ent[i].var)
+				left++;
+
+		if (!(fp = fopen("/proc/meminfo", "r"))) {
+			warn("fopen '/proc/meminfo':");
+			return 1;
+		}
+
+		/* read file line by line and extract field information */
+		while (left > 0 && getline(&line, &line_len, fp) >= 0) {
+			for (i = 0; i < LEN(ent); i++) {
+				if (ent[i].var &&
+				    !strncmp(line, ent[i].name, ent[i].len)) {
+					sscanf(line + ent[i].len + 1,
+					       "%ld kB\n", ent[i].var);
+					left--;
+					break;
+				}
+			}
+		}
+		free(line);
+		if (ferror(fp)) {
+			warn("getline '/proc/meminfo':");
+			return 1;
+		}
+
+		fclose(fp);
+		return 0;
+	}
+
+	const char *
+	swap_free(const char *unused)
+	{
+		long free;
+
+		if (get_swap_info(NULL, &free, NULL))
+			return NULL;
+
+		return fmt_human(free * 1024, 1024);
+	}
+
+	const char *
+	swap_perc(const char *unused)
+	{
+		long total, free, cached;
+
+		if (get_swap_info(&total, &free, &cached) || total == 0)
+			return NULL;
+
+		return bprintf("%d", 100 * (total - free - cached) / total);
+	}
+
+	const char *
+	swap_total(const char *unused)
+	{
+		long total;
+
+		if (get_swap_info(&total, NULL, NULL))
+			return NULL;
+
+		return fmt_human(total * 1024, 1024);
+	}
+
+	const char *
+	swap_used(const char *unused)
+	{
+		long total, free, cached;
+
+		if (get_swap_info(&total, &free, &cached))
+			return NULL;
+
+		return fmt_human((total - free - cached) * 1024, 1024);
+	}
+#elif defined(__OpenBSD__)
+	#include <stdlib.h>
+	#include <sys/swap.h>
+	#include <sys/types.h>
+	#include <unistd.h>
+
+	static int
+	getstats(int *total, int *used)
+	{
+		struct swapent *sep, *fsep;
+		int rnswap, nswap, i;
+
+		if ((nswap = swapctl(SWAP_NSWAP, 0, 0)) < 1) {
+			warn("swaptctl 'SWAP_NSWAP':");
+			return 1;
+		}
+		if (!(fsep = sep = calloc(nswap, sizeof(*sep)))) {
+			warn("calloc 'nswap':");
+			return 1;
+		}
+		if ((rnswap = swapctl(SWAP_STATS, (void *)sep, nswap)) < 0) {
+			warn("swapctl 'SWAP_STATA':");
+			return 1;
+		}
+		if (nswap != rnswap) {
+			warn("getstats: SWAP_STATS != SWAP_NSWAP");
+			return 1;
+		}
+
+		*total = 0;
+		*used = 0;
+
+		for (i = 0; i < rnswap; i++) {
+			*total += sep->se_nblks >> 1;
+			*used += sep->se_inuse >> 1;
+		}
+
+		free(fsep);
+
+		return 0;
+	}
+
+	const char *
+	swap_free(const char *unused)
+	{
+		int total, used;
+
+		if (getstats(&total, &used))
+			return NULL;
+
+		return fmt_human((total - used) * 1024, 1024);
+	}
+
+	const char *
+	swap_perc(const char *unused)
+	{
+		int total, used;
+
+		if (getstats(&total, &used))
+			return NULL;
+
+		if (total == 0)
+			return NULL;
+
+		return bprintf("%d", 100 * used / total);
+	}
+
+	const char *
+	swap_total(const char *unused)
+	{
+		int total, used;
+
+		if (getstats(&total, &used))
+			return NULL;
+
+		return fmt_human(total * 1024, 1024);
+	}
+
+	const char *
+	swap_used(const char *unused)
+	{
+		int total, used;
+
+		if (getstats(&total, &used))
+			return NULL;
+
+		return fmt_human(used * 1024, 1024);
+	}
+#elif defined(__FreeBSD__)
+	#include <fcntl.h>
+	#include <kvm.h>
+	#include <stdlib.h>
+	#include <sys/types.h>
+	#include <unistd.h>
+
+	static int getswapinfo(struct kvm_swap *swap_info, size_t size)
+	{
+		kvm_t *kd;
+
+		kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, NULL);
+		if (kd == NULL) {
+			warn("kvm_openfiles '/dev/null':");
+			return 0;
+		}
+
+		if (kvm_getswapinfo(kd, swap_info, size, 0 /* Unused flags */) < 0) {
+			warn("kvm_getswapinfo:");
+			kvm_close(kd);
+			return 0;
+		}
+
+		kvm_close(kd);
+		return 1;
+	}
+
+	const char *
+	swap_free(const char *unused)
+	{
+		struct kvm_swap swap_info[1];
+		long used, total;
+
+		if (!getswapinfo(swap_info, 1))
+			return NULL;
+
+		total = swap_info[0].ksw_total;
+		used = swap_info[0].ksw_used;
+
+		return fmt_human((total - used) * getpagesize(), 1024);
+	}
+
+	const char *
+	swap_perc(const char *unused)
+	{
+		struct kvm_swap swap_info[1];
+		long used, total;
+
+		if (!getswapinfo(swap_info, 1))
+			return NULL;
+
+		total = swap_info[0].ksw_total;
+		used = swap_info[0].ksw_used;
+
+		return bprintf("%d", used * 100 / total);
+	}
+
+	const char *
+	swap_total(const char *unused)
+	{
+		struct kvm_swap swap_info[1];
+		long total;
+
+		if (!getswapinfo(swap_info, 1))
+			return NULL;
+
+		total = swap_info[0].ksw_total;
+
+		return fmt_human(total * getpagesize(), 1024);
+	}
+
+	const char *
+	swap_used(const char *unused)
+	{
+		struct kvm_swap swap_info[1];
+		long used;
+
+		if (!getswapinfo(swap_info, 1))
+			return NULL;
+
+		used = swap_info[0].ksw_used;
+
+		return fmt_human(used * getpagesize(), 1024);
+	}
+#endif

slstatus/components/temperature.c

@@ -0,0 +1,73 @@
+/* See LICENSE file for copyright and license details. */
+#include <stddef.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+
+#if defined(__linux__)
+	#include <stdint.h>
+
+	const char *
+	temp(const char *file)
+	{
+		uintmax_t temp;
+
+		if (pscanf(file, "%ju", &temp) != 1)
+			return NULL;
+
+		return bprintf("%ju", temp / 1000);
+	}
+#elif defined(__OpenBSD__)
+	#include <stdio.h>
+	#include <sys/time.h> /* before <sys/sensors.h> for struct timeval */
+	#include <sys/sensors.h>
+	#include <sys/sysctl.h>
+
+	const char *
+	temp(const char *unused)
+	{
+		int mib[5];
+		size_t size;
+		struct sensor temp;
+
+		mib[0] = CTL_HW;
+		mib[1] = HW_SENSORS;
+		mib[2] = 0; /* cpu0 */
+		mib[3] = SENSOR_TEMP;
+		mib[4] = 0; /* temp0 */
+
+		size = sizeof(temp);
+
+		if (sysctl(mib, 5, &temp, &size, NULL, 0) < 0) {
+			warn("sysctl 'SENSOR_TEMP':");
+			return NULL;
+		}
+
+		/* kelvin to celsius */
+		return bprintf("%d", (int)((float)(temp.value-273150000) / 1E6));
+	}
+#elif defined(__FreeBSD__)
+	#include <stdio.h>
+	#include <stdlib.h>
+	#include <sys/sysctl.h>
+
+	#define ACPI_TEMP "hw.acpi.thermal.%s.temperature"
+
+	const char *
+	temp(const char *zone)
+	{
+		char buf[256];
+		int temp;
+		size_t len;
+
+		len = sizeof(temp);
+		snprintf(buf, sizeof(buf), ACPI_TEMP, zone);
+		if (sysctlbyname(buf, &temp, &len, NULL, 0) < 0
+				|| !len)
+			return NULL;
+
+		/* kelvin to decimal celcius */
+		return bprintf("%d.%d", (temp - 2731) / 10, abs((temp - 2731) % 10));
+	}
+#endif

slstatus/components/uptime.c

@@ -0,0 +1,34 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdint.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(CLOCK_BOOTTIME)
+	#define UPTIME_FLAG CLOCK_BOOTTIME
+#elif defined(CLOCK_UPTIME)
+	#define UPTIME_FLAG CLOCK_UPTIME
+#else
+	#define UPTIME_FLAG CLOCK_MONOTONIC
+#endif
+
+const char *
+uptime(const char *unused)
+{
+	char warn_buf[256];
+	uintmax_t h, m;
+	struct timespec uptime;
+
+	if (clock_gettime(UPTIME_FLAG, &uptime) < 0) {
+		snprintf(warn_buf, sizeof(warn_buf), "clock_gettime %d", UPTIME_FLAG);
+		warn(warn_buf);
+		return NULL;
+	}
+
+	h = uptime.tv_sec / 3600;
+	m = uptime.tv_sec % 3600 / 60;
+
+	return bprintf("%juh %jum", h, m);
+}

slstatus/components/user.c

@@ -0,0 +1,33 @@
+/* See LICENSE file for copyright and license details. */
+#include <pwd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+gid(const char *unused)
+{
+	return bprintf("%d", getgid());
+}
+
+const char *
+username(const char *unused)
+{
+	struct passwd *pw;
+
+	if (!(pw = getpwuid(geteuid()))) {
+		warn("getpwuid '%d':", geteuid());
+		return NULL;
+	}
+
+	return bprintf("%s", pw->pw_name);
+}
+
+const char *
+uid(const char *unused)
+{
+	return bprintf("%d", geteuid());
+}

slstatus/components/volume.c

@@ -0,0 +1,219 @@
+/* See LICENSE file for copyright and license details. */
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#if defined(__OpenBSD__) | defined(__FreeBSD__)
+	#include <poll.h>
+	#include <sndio.h>
+	#include <stdlib.h>
+	#include <sys/queue.h>
+
+	struct control {
+		LIST_ENTRY(control)	next;
+		unsigned int		addr;
+	#define CTRL_NONE	0
+	#define CTRL_LEVEL	1
+	#define CTRL_MUTE	2
+		unsigned int		type;
+		unsigned int		maxval;
+		unsigned int		val;
+	};
+
+	static LIST_HEAD(, control) controls = LIST_HEAD_INITIALIZER(controls);
+	static struct pollfd *pfds;
+	static struct sioctl_hdl *hdl;
+	static int initialized;
+
+	/*
+	 * Call-back to obtain the description of all audio controls.
+	 */
+	static void
+	ondesc(void *unused, struct sioctl_desc *desc, int val)
+	{
+		struct control *c, *ctmp;
+		unsigned int type = CTRL_NONE;
+
+		if (desc == NULL)
+			return;
+
+		/* Delete existing audio control with the same address. */
+		LIST_FOREACH_SAFE(c, &controls, next, ctmp) {
+			if (desc->addr == c->addr) {
+				LIST_REMOVE(c, next);
+				free(c);
+				break;
+			}
+		}
+
+		/* Only match output.level and output.mute audio controls. */
+		if (desc->group[0] != 0 ||
+		    strcmp(desc->node0.name, "output") != 0)
+			return;
+		if (desc->type == SIOCTL_NUM &&
+		    strcmp(desc->func, "level") == 0)
+			type = CTRL_LEVEL;
+		else if (desc->type == SIOCTL_SW &&
+			 strcmp(desc->func, "mute") == 0)
+			type = CTRL_MUTE;
+		else
+			return;
+
+		c = malloc(sizeof(struct control));
+		if (c == NULL) {
+			warn("sndio: failed to allocate audio control\n");
+			return;
+		}
+
+		c->addr = desc->addr;
+		c->type = type;
+		c->maxval = desc->maxval;
+		c->val = val;
+		LIST_INSERT_HEAD(&controls, c, next);
+	}
+
+	/*
+	 * Call-back invoked whenever an audio control changes.
+	 */
+	static void
+	onval(void *unused, unsigned int addr, unsigned int val)
+	{
+		struct control *c;
+
+		LIST_FOREACH(c, &controls, next) {
+			if (c->addr == addr)
+				break;
+		}
+		c->val = val;
+	}
+
+	static void
+	cleanup(void)
+	{
+		struct control *c;
+
+		if (hdl) {
+			sioctl_close(hdl);
+			hdl = NULL;
+		}
+
+		free(pfds);
+		pfds = NULL;
+
+		while (!LIST_EMPTY(&controls)) {
+			c = LIST_FIRST(&controls);
+			LIST_REMOVE(c, next);
+			free(c);
+		}
+	}
+
+	static int
+	init(void)
+	{
+		hdl = sioctl_open(SIO_DEVANY, SIOCTL_READ, 0);
+		if (hdl == NULL) {
+			warn("sndio: cannot open device");
+			goto failed;
+		}
+
+		if (!sioctl_ondesc(hdl, ondesc, NULL)) {
+			warn("sndio: cannot set control description call-back");
+			goto failed;
+		}
+
+		if (!sioctl_onval(hdl, onval, NULL)) {
+			warn("sndio: cannot set control values call-back");
+			goto failed;
+		}
+
+		pfds = calloc(sioctl_nfds(hdl), sizeof(struct pollfd));
+		if (pfds == NULL) {
+			warn("sndio: cannot allocate pollfd structures");
+			goto failed;
+		}
+
+		return 1;
+	failed:
+		cleanup();
+		return 0;
+	}
+
+	const char *
+	vol_perc(const char *unused)
+	{
+		struct control *c;
+		int n, v, value;
+
+		if (!initialized)
+			initialized = init();
+
+		if (hdl == NULL)
+			return NULL;
+
+		n = sioctl_pollfd(hdl, pfds, POLLIN);
+		if (n > 0) {
+			n = poll(pfds, n, 0);
+			if (n > 0) {
+				if (sioctl_revents(hdl, pfds) & POLLHUP) {
+					warn("sndio: disconnected");
+					cleanup();
+					initialized = 0;
+					return NULL;
+				}
+			}
+		}
+
+		value = 100;
+		LIST_FOREACH(c, &controls, next) {
+			if (c->type == CTRL_MUTE && c->val == 1)
+				value = 0;
+			else if (c->type == CTRL_LEVEL) {
+				v = (c->val * 100 + c->maxval / 2) / c->maxval;
+				/* For multiple channels return the minimum. */
+				if (v < value)
+					value = v;
+			}
+		}
+
+		return bprintf("%d", value);
+	}
+#else
+	#include <sys/soundcard.h>
+
+	const char *
+	vol_perc(const char *card)
+	{
+		size_t i;
+		int v, afd, devmask;
+		char *vnames[] = SOUND_DEVICE_NAMES;
+
+		if ((afd = open(card, O_RDONLY | O_NONBLOCK)) < 0) {
+			warn("open '%s':", card);
+			return NULL;
+		}
+
+		if (ioctl(afd, (int)SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
+			warn("ioctl 'SOUND_MIXER_READ_DEVMASK':");
+			close(afd);
+			return NULL;
+		}
+		for (i = 0; i < LEN(vnames); i++) {
+			if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
+				if (ioctl(afd, MIXER_READ(i), &v) < 0) {
+					warn("ioctl 'MIXER_READ(%ld)':", i);
+					close(afd);
+					return NULL;
+				}
+			}
+		}
+
+		close(afd);
+
+		return bprintf("%d", v & 0xff);
+	}
+#endif

slstatus/components/wifi.c

@@ -0,0 +1,413 @@
+/* See LICENSE file for copyright and license details. */
+#include <ifaddrs.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+#define RSSI_TO_PERC(rssi) \
+			rssi >= -50 ? 100 : \
+			(rssi <= -100 ? 0 : \
+			(2 * (rssi + 100)))
+
+#if defined(__linux__)
+	#include <stdint.h>
+	#include <net/if.h>
+	#include <linux/netlink.h>
+	#include <linux/genetlink.h>
+	#include <linux/nl80211.h>
+
+	static int nlsock = -1;
+	static uint32_t seq = 1;
+	static char resp[4096];
+
+	static char *
+	findattr(int attr, const char *p, const char *e, size_t *len)
+	{
+		while (p < e) {
+			struct nlattr nla;
+			memcpy(&nla, p, sizeof(nla));
+			if (nla.nla_type == attr) {
+				*len = nla.nla_len - NLA_HDRLEN;
+				return (char *)(p + NLA_HDRLEN);
+			}
+			p += NLA_ALIGN(nla.nla_len);
+		}
+		return NULL;
+	}
+
+	static uint16_t
+	nl80211fam(void)
+	{
+		static const char family[] = "nl80211";
+		static uint16_t id;
+		ssize_t r;
+		size_t len;
+		char ctrl[NLMSG_HDRLEN+GENL_HDRLEN+NLA_HDRLEN+NLA_ALIGN(sizeof(family))] = {0}, *p = ctrl;
+
+		if (id)
+			return id;
+
+		memcpy(p, &(struct nlmsghdr){
+			.nlmsg_len = sizeof(ctrl),
+			.nlmsg_type = GENL_ID_CTRL,
+			.nlmsg_flags = NLM_F_REQUEST,
+			.nlmsg_seq = seq++,
+			.nlmsg_pid = 0,
+		}, sizeof(struct nlmsghdr));
+		p += NLMSG_HDRLEN;
+		memcpy(p, &(struct genlmsghdr){
+			.cmd = CTRL_CMD_GETFAMILY,
+			.version = 1,
+		}, sizeof(struct genlmsghdr));
+		p += GENL_HDRLEN;
+		memcpy(p, &(struct nlattr){
+			.nla_len = NLA_HDRLEN+sizeof(family),
+			.nla_type = CTRL_ATTR_FAMILY_NAME,
+		}, sizeof(struct nlattr));
+		p += NLA_HDRLEN;
+		memcpy(p, family, sizeof(family));
+
+		if (nlsock < 0)
+			nlsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+		if (nlsock < 0) {
+			warn("socket 'AF_NETLINK':");
+			return 0;
+		}
+		if (send(nlsock, ctrl, sizeof(ctrl), 0) != sizeof(ctrl)) {
+			warn("send 'AF_NETLINK':");
+			return 0;
+		}
+		r = recv(nlsock, resp, sizeof(resp), 0);
+		if (r < 0) {
+			warn("recv 'AF_NETLINK':");
+			return 0;
+		}
+		if ((size_t)r <= sizeof(ctrl))
+			return 0;
+		p = findattr(CTRL_ATTR_FAMILY_ID, resp + sizeof(ctrl), resp + r, &len);
+		if (p && len == 2)
+			memcpy(&id, p, 2);
+
+		return id;
+	}
+
+	static int
+	ifindex(const char *interface)
+	{
+		static struct ifreq ifr;
+		static int ifsock = -1;
+
+		if (ifsock < 0)
+			ifsock = socket(AF_UNIX, SOCK_DGRAM, 0);
+		if (ifsock < 0) {
+			warn("socket 'AF_UNIX':");
+			return -1;
+		}
+		if (strcmp(ifr.ifr_name, interface) != 0) {
+			strcpy(ifr.ifr_name, interface);
+			if (ioctl(ifsock, SIOCGIFINDEX, &ifr) != 0) {
+				warn("ioctl 'SIOCGIFINDEX':");
+				return -1;
+			}
+		}
+		return ifr.ifr_ifindex;
+	}
+
+	const char *
+	wifi_essid(const char *interface)
+	{
+		uint16_t fam = nl80211fam();
+		ssize_t r;
+		size_t len;
+		char req[NLMSG_HDRLEN+GENL_HDRLEN+NLA_HDRLEN+NLA_ALIGN(4)] = {0}, *p = req;
+		int idx = ifindex(interface);
+		if (!fam) {
+			fprintf(stderr, "nl80211 family not found\n");
+			return NULL;
+		}
+		if (idx < 0) {
+			fprintf(stderr, "interface %s not found\n", interface);
+			return NULL;
+		}
+
+		memcpy(p, &(struct nlmsghdr){
+			.nlmsg_len = sizeof(req),
+			.nlmsg_type = fam,
+			.nlmsg_flags = NLM_F_REQUEST,
+			.nlmsg_seq = seq++,
+			.nlmsg_pid = 0,
+		}, sizeof(struct nlmsghdr));
+		p += NLMSG_HDRLEN;
+		memcpy(p, &(struct genlmsghdr){
+			.cmd = NL80211_CMD_GET_INTERFACE,
+			.version = 1,
+		}, sizeof(struct genlmsghdr));
+		p += GENL_HDRLEN;
+		memcpy(p, &(struct nlattr){
+			.nla_len = NLA_HDRLEN+4,
+			.nla_type = NL80211_ATTR_IFINDEX,
+		}, sizeof(struct nlattr));
+		p += NLA_HDRLEN;
+		memcpy(p, &(uint32_t){idx}, 4);
+
+		if (send(nlsock, req, sizeof(req), 0) != sizeof(req)) {
+			warn("send 'AF_NETLINK':");
+			return NULL;
+		}
+		r = recv(nlsock, resp, sizeof(resp), 0);
+		if (r < 0) {
+			warn("recv 'AF_NETLINK':");
+			return NULL;
+		}
+
+		if ((size_t)r <= NLMSG_HDRLEN + GENL_HDRLEN)
+			return NULL;
+		p = findattr(NL80211_ATTR_SSID, resp + NLMSG_HDRLEN + GENL_HDRLEN, resp + r, &len);
+		if (p)
+			p[len] = 0;
+
+		return p;
+	}
+
+	const char *
+	wifi_perc(const char *interface)
+	{
+		static char strength[4];
+		struct nlmsghdr hdr;
+		uint16_t fam = nl80211fam();
+		ssize_t r;
+		size_t len;
+		char req[NLMSG_HDRLEN + GENL_HDRLEN + NLA_HDRLEN + NLA_ALIGN(4)] = {0}, *p = req, *e;
+		int idx = ifindex(interface);
+
+		if (idx < 0) {
+			fprintf(stderr, "interface %s not found\n", interface);
+			return NULL;
+		}
+
+		memcpy(p, &(struct nlmsghdr){
+			.nlmsg_len = sizeof(req),
+			.nlmsg_type = fam,
+			.nlmsg_flags = NLM_F_REQUEST|NLM_F_DUMP,
+			.nlmsg_seq = seq++,
+			.nlmsg_pid = 0,
+		}, sizeof(struct nlmsghdr));
+		p += NLMSG_HDRLEN;
+		memcpy(p, &(struct genlmsghdr){
+			.cmd = NL80211_CMD_GET_STATION,
+			.version = 1,
+		}, sizeof(struct genlmsghdr));
+		p += GENL_HDRLEN;
+		memcpy(p, &(struct nlattr){
+			.nla_len = NLA_HDRLEN + 4,
+			.nla_type = NL80211_ATTR_IFINDEX,
+		}, sizeof(struct nlattr));
+		p += NLA_HDRLEN;
+		memcpy(p, &idx, 4);
+
+		if (send(nlsock, req, sizeof(req), 0) != sizeof(req)) {
+			warn("send 'AF_NETLINK':");
+			return NULL;
+		}
+
+		*strength = 0;
+		while (1) {
+			r = recv(nlsock, resp, sizeof(resp), 0);
+			if (r < 0) {
+				warn("recv 'AF_NETLINK':");
+				return NULL;
+			}
+			if ((size_t)r < sizeof(hdr))
+				return NULL;
+
+			for (p = resp; p != resp + r && (size_t)(resp + r-p) >= sizeof(hdr); p = e) {
+				memcpy(&hdr, p, sizeof(hdr));
+				e = resp + r - p < hdr.nlmsg_len ? resp + r : p + hdr.nlmsg_len;
+
+				if (!*strength && hdr.nlmsg_len > NLMSG_HDRLEN+GENL_HDRLEN) {
+					p += NLMSG_HDRLEN+GENL_HDRLEN;
+					p = findattr(NL80211_ATTR_STA_INFO, p, e, &len);
+					if (p)
+						p = findattr(NL80211_STA_INFO_SIGNAL_AVG, p, e, &len);
+					if (p && len == 1)
+						snprintf(strength, sizeof(strength), "%d", RSSI_TO_PERC(*p));
+				}
+				if (hdr.nlmsg_type == NLMSG_DONE)
+					return *strength ? strength : NULL;
+			}
+		}
+	}
+#elif defined(__OpenBSD__)
+	#include <net/if.h>
+	#include <net/if_media.h>
+	#include <net80211/ieee80211.h>
+	#include <sys/select.h> /* before <sys/ieee80211_ioctl.h> for NBBY */
+	#include <net80211/ieee80211_ioctl.h>
+	#include <stdlib.h>
+	#include <sys/types.h>
+
+	static int
+	load_ieee80211_nodereq(const char *interface, struct ieee80211_nodereq *nr)
+	{
+		struct ieee80211_bssid bssid;
+		int sockfd;
+		uint8_t zero_bssid[IEEE80211_ADDR_LEN];
+
+		memset(&bssid, 0, sizeof(bssid));
+		memset(nr, 0, sizeof(struct ieee80211_nodereq));
+		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			warn("socket 'AF_INET':");
+			return 0;
+		}
+		strlcpy(bssid.i_name, interface, sizeof(bssid.i_name));
+		if ((ioctl(sockfd, SIOCG80211BSSID, &bssid)) < 0) {
+			warn("ioctl 'SIOCG80211BSSID':");
+			close(sockfd);
+			return 0;
+		}
+		memset(&zero_bssid, 0, sizeof(zero_bssid));
+		if (memcmp(bssid.i_bssid, zero_bssid,
+		    IEEE80211_ADDR_LEN) == 0) {
+			close(sockfd);
+			return 0;
+		}
+		strlcpy(nr->nr_ifname, interface, sizeof(nr->nr_ifname));
+		memcpy(&nr->nr_macaddr, bssid.i_bssid, sizeof(nr->nr_macaddr));
+		if ((ioctl(sockfd, SIOCG80211NODE, nr)) < 0 && nr->nr_rssi) {
+			warn("ioctl 'SIOCG80211NODE':");
+			close(sockfd);
+			return 0;
+		}
+
+		return close(sockfd), 1;
+	}
+
+	const char *
+	wifi_perc(const char *interface)
+	{
+		struct ieee80211_nodereq nr;
+		int q;
+
+		if (load_ieee80211_nodereq(interface, &nr)) {
+			if (nr.nr_max_rssi)
+				q = IEEE80211_NODEREQ_RSSI(&nr);
+			else
+				q = RSSI_TO_PERC(nr.nr_rssi);
+
+			return bprintf("%d", q);
+		}
+
+		return NULL;
+	}
+
+	const char *
+	wifi_essid(const char *interface)
+	{
+		struct ieee80211_nodereq nr;
+
+		if (load_ieee80211_nodereq(interface, &nr))
+			return bprintf("%s", nr.nr_nwid);
+
+		return NULL;
+	}
+#elif defined(__FreeBSD__)
+	#include <net/if.h>
+	#include <net80211/ieee80211_ioctl.h>
+
+	int
+	load_ieee80211req(int sock, const char *interface, void *data, int type, size_t *len)
+	{
+		char warn_buf[256];
+		struct ieee80211req ireq;
+		memset(&ireq, 0, sizeof(ireq));
+		ireq.i_type = type;
+		ireq.i_data = (caddr_t) data;
+		ireq.i_len = *len;
+
+		strlcpy(ireq.i_name, interface, sizeof(ireq.i_name));
+		if (ioctl(sock, SIOCG80211, &ireq) < 0) {
+			snprintf(warn_buf,  sizeof(warn_buf),
+					"ioctl: 'SIOCG80211': %d", type);
+			warn(warn_buf);
+			return 0;
+		}
+
+		*len = ireq.i_len;
+		return 1;
+	}
+
+	const char *
+	wifi_perc(const char *interface)
+	{
+		union {
+			struct ieee80211req_sta_req sta;
+			uint8_t buf[24 * 1024];
+		} info;
+		uint8_t bssid[IEEE80211_ADDR_LEN];
+		int rssi_dbm;
+		int sockfd;
+		size_t len;
+		const char *fmt;
+
+		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			warn("socket 'AF_INET':");
+			return NULL;
+		}
+
+		/* Retreive MAC address of interface */
+		len = IEEE80211_ADDR_LEN;
+		fmt = NULL;
+		if (load_ieee80211req(sockfd, interface, &bssid, IEEE80211_IOC_BSSID, &len))
+		{
+			/* Retrieve info on station with above BSSID */
+			memset(&info, 0, sizeof(info));
+			memcpy(info.sta.is_u.macaddr, bssid, sizeof(bssid));
+
+			len = sizeof(info);
+			if (load_ieee80211req(sockfd, interface, &info, IEEE80211_IOC_STA_INFO, &len)) {
+				rssi_dbm = info.sta.info[0].isi_noise +
+ 					         info.sta.info[0].isi_rssi / 2;
+
+				fmt = bprintf("%d", RSSI_TO_PERC(rssi_dbm));
+			}
+		}
+
+		close(sockfd);
+		return fmt;
+	}
+
+	const char *
+	wifi_essid(const char *interface)
+	{
+		char ssid[IEEE80211_NWID_LEN + 1];
+		size_t len;
+		int sockfd;
+		const char *fmt;
+
+		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			warn("socket 'AF_INET':");
+			return NULL;
+		}
+
+		fmt = NULL;
+		len = sizeof(ssid);
+		memset(&ssid, 0, len);
+		if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len)) {
+			if (len < sizeof(ssid))
+				len += 1;
+			else
+				len = sizeof(ssid);
+
+			ssid[len - 1] = '\0';
+			fmt = bprintf("%s", ssid);
+		}
+
+		close(sockfd);
+		return fmt;
+	}
+#endif