X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/f9f72a06f11de9ecd1b14811eba63c6e8c7a1165..9bef4e889a547ed909a23bb57489bc71da80e472:/slstatus.c diff --git a/slstatus.c b/slstatus.c index 5c7659c..9559226 100644 --- a/slstatus.c +++ b/slstatus.c @@ -1,7 +1,7 @@ /* See LICENSE file for copyright and license details. */ #include -#include +#include #include #include #include @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -26,106 +27,125 @@ #undef strlcat #undef strlcpy -#include "strlcat.h" -#include "strlcpy.h" +#include "extern/arg.h" +#include "extern/strlcat.h" +#include "extern/strlcpy.h" +#include "extern/concat.h" -typedef char *(*op_fun)(); struct arg { - op_fun func; - const char *format; + 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 *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 *); -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 *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 *); +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 *); -static char *temp(const char *); +static char *run_command(const char *cmd); +static char *swap_free(void); +static char *swap_perc(void); +static char *swap_used(void); +static char *swap_total(void); +static char *temp(const char *file); static char *uid(void); static char *uptime(void); static char *username(void); -static char *vol_perc(const char *); -static char *wifi_perc(const char *); -static char *wifi_essid(const char *); - +static char *vol_perc(const char *card); +static char *wifi_perc(const char *iface); +static char *wifi_essid(const char *iface); +static void set_status(const char *str); +static void sighandler(const int signo); +static void usage(void); + +char *argv0; +char concat[]; +static unsigned short int delay; +static unsigned short int done; +static unsigned short int dflag, oflag; static Display *dpy; #include "config.h" -static void -setstatus(const char *str) -{ - /* set WM_NAME via X11 */ - XStoreName(dpy, DefaultRootWindow(dpy), str); - XSync(dpy, False); -} - static char * smprintf(const char *fmt, ...) { - va_list fmtargs; - char *ret = NULL; + va_list ap; + char *ret; + int len; + + va_start(ap, fmt); + len = vsnprintf(NULL, 0, fmt, ap); + va_end(ap); + + ret = malloc(++len); + if (ret == NULL) { + err(1, "malloc"); + } - va_start(fmtargs, fmt); - if (vasprintf(&ret, fmt, fmtargs) < 0) - return NULL; - va_end(fmtargs); + va_start(ap, fmt); + vsnprintf(ret, len, fmt, ap); + va_end(ap); return ret; } static char * -battery_perc(const char *battery) +battery_perc(const char *bat) { - int now, full, perc; - char batterynowfile[64] = ""; - char batteryfullfile[64] = ""; + int perc; FILE *fp; - strlcat(batterynowfile, batterypath, sizeof(batterynowfile)); - strlcat(batterynowfile, battery, sizeof(batterynowfile)); - strlcat(batterynowfile, "/", sizeof(batterynowfile)); - strlcat(batterynowfile, batterynow, sizeof(batterynowfile)); - - strlcat(batteryfullfile, batterypath, sizeof(batteryfullfile)); - strlcat(batteryfullfile, battery, sizeof(batteryfullfile)); - strlcat(batteryfullfile, "/", sizeof(batteryfullfile)); - strlcat(batteryfullfile, batteryfull, sizeof(batteryfullfile)); - - if (!(fp = fopen(batterynowfile, "r"))) { - fprintf(stderr, "Error opening battery file: %s.\n", batterynowfile); - return smprintf(unknowntext); + ccat(3, "/sys/class/power_supply/", bat, "/capacity"); + fp = fopen(concat, "r"); + if (fp == NULL) { + warn("Failed to open file %s", concat); + return smprintf(UNKNOWN_STR); } - - fscanf(fp, "%i", &now); + fscanf(fp, "%i", &perc); fclose(fp); - if (!(fp = fopen(batteryfullfile, "r"))) { - fprintf(stderr, "Error opening battery file.\n"); - return smprintf(unknowntext); - } + return smprintf("%d%%", perc); +} - fscanf(fp, "%i", &full); - fclose(fp); +static char * +battery_state(const char *bat) +{ + char state[12]; + FILE *fp; - perc = now / (full / 100); + ccat(3, "/sys/class/power_supply/", bat, "/status"); + fp = fopen(concat, "r"); + if (fp == NULL) { + warn("Failed to open file %s", concat); + return smprintf(UNKNOWN_STR); + } + fscanf(fp, "%12s", state); + fclose(fp); - return smprintf("%d%%", perc); + if (strcmp(state, "Charging") == 0) { + return smprintf("+"); + } else if (strcmp(state, "Discharging") == 0) { + return smprintf("-"); + } else if (strcmp(state, "Full") == 0) { + return smprintf("="); + } else { + return smprintf("?"); + } } static char * @@ -135,102 +155,93 @@ cpu_perc(void) long double a[4], b[4]; FILE *fp; - if (!(fp = fopen("/proc/stat","r"))) { - fprintf(stderr, "Error opening stat file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/stat", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/stat"); + return smprintf(UNKNOWN_STR); } - fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]); fclose(fp); - /* wait a second (for avg values) */ - sleep(1); + delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1)); + sleep(delay); - if (!(fp = fopen("/proc/stat","r"))) { - fprintf(stderr, "Error opening stat file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/stat", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/stat"); + return smprintf(UNKNOWN_STR); } - fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]); fclose(fp); + 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); } static char * -datetime(const char *timeformat) +datetime(const char *fmt) { - time_t tm; - size_t bufsize = 64; - char *buf = malloc(bufsize); - if (buf == NULL) { - fprintf(stderr, "Failed to get date/time.\n"); - return smprintf(unknowntext); - } + time_t t; + char str[80]; - time(&tm); - setlocale(LC_TIME, ""); - if (!strftime(buf, bufsize, timeformat, localtime(&tm))) { - setlocale(LC_TIME, "C"); - free(buf); - fprintf(stderr, "Strftime failed.\n"); - return smprintf(unknowntext); + t = time(NULL); + if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) { + return smprintf(UNKNOWN_STR); } - setlocale(LC_TIME, "C"); - char *ret = smprintf("%s", buf); - free(buf); - return ret; + return smprintf("%s", str); } static char * -disk_free(const char *mountpoint) +disk_free(const char *mnt) { struct statvfs fs; - if (statvfs(mountpoint, &fs) < 0) { - fprintf(stderr, "Could not get filesystem info.\n"); - return smprintf(unknowntext); + if (statvfs(mnt, &fs) < 0) { + warn("Failed to get filesystem info"); + return smprintf(UNKNOWN_STR); } + return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024); } static char * -disk_perc(const char *mountpoint) +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.\n"); - return smprintf(unknowntext); + if (statvfs(mnt, &fs) < 0) { + warn("Failed to get filesystem info"); + return smprintf(UNKNOWN_STR); } perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks)); + return smprintf("%d%%", perc); } static char * -disk_total(const char *mountpoint) +disk_total(const char *mnt) { struct statvfs fs; - if (statvfs(mountpoint, &fs) < 0) { - fprintf(stderr, "Could not get filesystem info.\n"); - return smprintf(unknowntext); + if (statvfs(mnt, &fs) < 0) { + warn("Failed to get filesystem info"); + return smprintf(UNKNOWN_STR); } return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024); } static char * -disk_used(const char *mountpoint) +disk_used(const char *mnt) { struct statvfs fs; - if (statvfs(mountpoint, &fs) < 0) { - fprintf(stderr, "Could not get filesystem info.\n"); - return smprintf(unknowntext); + if (statvfs(mnt, &fs) < 0) { + warn("Failed to get filesystem info"); + return smprintf(UNKNOWN_STR); } return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024); @@ -239,74 +250,68 @@ disk_used(const char *mountpoint) static char * entropy(void) { - int entropy = 0; + int num; FILE *fp; - if (!(fp = fopen("/proc/sys/kernel/random/entropy_avail", "r"))) { - fprintf(stderr, "Could not open entropy file.\n"); - return smprintf(unknowntext); + fp= fopen("/proc/sys/kernel/random/entropy_avail", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/sys/kernel/random/entropy_avail"); + return smprintf(UNKNOWN_STR); } - - fscanf(fp, "%d", &entropy); + fscanf(fp, "%d", &num); fclose(fp); - return smprintf("%d", entropy); + + return smprintf("%d", num); } static char * gid(void) { - gid_t gid = getgid(); - return smprintf("%d", gid); + return smprintf("%d", getgid()); } static char * hostname(void) { - char hostname[HOST_NAME_MAX]; - FILE *fp; + char buf[HOST_NAME_MAX]; - if (!(fp = fopen("/proc/sys/kernel/hostname", "r"))) { - fprintf(stderr, "Could not open hostname file.\n"); - return smprintf(unknowntext); + if (gethostname(buf, sizeof(buf)) == -1) { + warn("hostname"); + return smprintf(UNKNOWN_STR); } - fscanf(fp, "%s\n", hostname); - fclose(fp); - return smprintf("%s", hostname); + return smprintf("%s", buf); } static char * -ip(const char *interface) +ip(const char *iface) { struct ifaddrs *ifaddr, *ifa; int s; char host[NI_MAXHOST]; if (getifaddrs(&ifaddr) == -1) { - fprintf(stderr, "Error getting IP address.\n"); - return smprintf(unknowntext); + warn("Failed to get IP address for interface %s", iface); + return smprintf(UNKNOWN_STR); } - /* get the ip address */ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { - if (ifa->ifa_addr == NULL) + if (ifa->ifa_addr == NULL) { continue; - + } s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST); - - if ((strcmp(ifa->ifa_name, interface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) { + if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) { if (s != 0) { - fprintf(stderr, "Error getting IP address.\n"); - return smprintf(unknowntext); + warnx("Failed to get IP address for interface %s", iface); + return smprintf(UNKNOWN_STR); } return smprintf("%s", host); } } - /* free the address */ freeifaddrs(ifaddr); - return smprintf(unknowntext); + return smprintf(UNKNOWN_STR); } static char * @@ -315,8 +320,8 @@ load_avg(void) double avgs[3]; if (getloadavg(avgs, 3) < 0) { - fprintf(stderr, "Error getting load avg.\n"); - return smprintf(unknowntext); + warnx("Failed to get the load avg"); + return smprintf(UNKNOWN_STR); } return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]); @@ -328,36 +333,35 @@ ram_free(void) long free; FILE *fp; - if (!(fp = fopen("/proc/meminfo", "r"))) { - fprintf(stderr, "Error opening meminfo file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); } - fscanf(fp, "MemFree: %ld kB\n", &free); fclose(fp); + return smprintf("%f", (float)free / 1024 / 1024); } static char * ram_perc(void) { - int perc; long total, free, buffers, cached; FILE *fp; - if (!(fp = fopen("/proc/meminfo", "r"))) { - fprintf(stderr, "Error opening meminfo file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); } - 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); - fclose(fp); - perc = 100 * ((total - free) - (buffers + cached)) / total; - return smprintf("%d%%", perc); + + return smprintf("%d%%", 100 * ((total - free) - (buffers + cached)) / total); } static char * @@ -366,278 +370,458 @@ ram_total(void) long total; FILE *fp; - if (!(fp = fopen("/proc/meminfo", "r"))) { - fprintf(stderr, "Error opening meminfo file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); } - fscanf(fp, "MemTotal: %ld kB\n", &total); fclose(fp); + return smprintf("%f", (float)total / 1024 / 1024); } static char * ram_used(void) { - long free, total, buffers, cached, used; + long free, total, buffers, cached; FILE *fp; - if (!(fp = fopen("/proc/meminfo", "r"))) { - fprintf(stderr, "Error opening meminfo file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); } - 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); + fclose(fp); + + return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024); +} + +static char * +run_command(const char *cmd) +{ + FILE *fp; + char buf[1024] = "n/a"; + + fp = popen(cmd, "r"); + if (fp == NULL) { + warn("Failed to get command output for %s", cmd); + return smprintf(UNKNOWN_STR); + } + fgets(buf, sizeof(buf)-1, fp); + pclose(fp); + buf[strlen(buf)] = '\0'; + strtok(buf, "\n"); + + return smprintf("%s", buf); +} + +static char * +swap_free(void) +{ + long total, free; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; + + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; fclose(fp); - used = total - free - buffers - cached; - return smprintf("%f", (float)used / 1024 / 1024); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read /proc/meminfo\n"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%f", (float)free / 1024 / 1024); } static char * -run_command(const char* command) +swap_perc(void) { - int good; + long total, free, cached; FILE *fp; - char buffer[64]; + char buf[2048]; + size_t bytes_read; + char *match; - if (!(fp = popen(command, "r"))) { - fprintf(stderr, "Could not get command output for: %s.\n", command); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read /proc/meminfo\n"); + return smprintf(UNKNOWN_STR); } - fgets(buffer, sizeof(buffer) - 1, fp); - pclose(fp); - for (int i = 0 ; i != sizeof(buffer); i++) { - if (buffer[i] == '\0') { - good = 1; - break; - } + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); } - if (good) - buffer[strlen(buffer) - 1] = '\0'; - return smprintf("%s", buffer); + + match = strstr(buf, "SwapCached"); + sscanf(match, "SwapCached: %ld kB\n", &cached); + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%d%%", 100 * (total - free - cached) / total); } static char * -temp(const char *file) +swap_total(void) { - int temperature; + long total; FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; - if (!(fp = fopen(file, "r"))) { - fprintf(stderr, "Could not open temperature file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read /proc/meminfo\n"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + return smprintf("%f", (float)total / 1024 / 1024); +} + +static char * +swap_used(void) +{ + long total, free, cached; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; - fscanf(fp, "%d", &temperature); + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; fclose(fp); - return smprintf("%d°C", temperature / 1000); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read /proc/meminfo\n"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapCached"); + sscanf(match, "SwapCached: %ld kB\n", &cached); + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%f", (float)(total - free - cached) / 1024 / 1024); +} + +static char * +temp(const char *file) +{ + int temp; + FILE *fp; + + fp = fopen(file, "r"); + if (fp == NULL) { + warn("Failed to open file %s", file); + return smprintf(UNKNOWN_STR); + } + fscanf(fp, "%d", &temp); + fclose(fp); + + return smprintf("%d°C", temp / 1000); } static char * uptime(void) { struct sysinfo info; - int hours = 0; - int minutes = 0; + int h = 0; + int m = 0; sysinfo(&info); - hours = info.uptime / 3600; - minutes = (info.uptime - hours * 3600 ) / 60; + h = info.uptime / 3600; + m = (info.uptime - h * 3600 ) / 60; - return smprintf("%dh %dm", hours, minutes); + return smprintf("%dh %dm", h, m); } static char * username(void) { - register struct passwd *pw; - register uid_t uid; + uid_t uid = geteuid(); + struct passwd *pw = getpwuid(uid); - uid = geteuid(); - pw = getpwuid(uid); - - if (pw) - return smprintf("%s", pw->pw_name); - else { - fprintf(stderr, "Could not get username.\n"); - return smprintf(unknowntext); + if (pw == NULL) { + warn("Failed to get username"); + return smprintf(UNKNOWN_STR); } - return smprintf(unknowntext); + return smprintf("%s", pw->pw_name); } static char * uid(void) { - register uid_t uid; - - uid = geteuid(); - - if (uid) - return smprintf("%d", uid); - else { - fprintf(stderr, "Could not get uid.\n"); - return smprintf(unknowntext); - } - - return smprintf(unknowntext); + return smprintf("%d", geteuid()); } static char * -vol_perc(const char *soundcard) +vol_perc(const char *card) { - int mute = 0; - long vol = 0, max = 0, min = 0; + int mute; + long int vol, max, min; snd_mixer_t *handle; - snd_mixer_elem_t *pcm_mixer, *mas_mixer; - snd_mixer_selem_id_t *vol_info, *mute_info; + snd_mixer_elem_t *elem; + snd_mixer_selem_id_t *s_elem; snd_mixer_open(&handle, 0); - snd_mixer_attach(handle, soundcard); + snd_mixer_attach(handle, card); snd_mixer_selem_register(handle, NULL, NULL); snd_mixer_load(handle); + snd_mixer_selem_id_malloc(&s_elem); + snd_mixer_selem_id_set_name(s_elem, "Master"); + elem = snd_mixer_find_selem(handle, s_elem); - 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(unknowntext); - } - snd_mixer_selem_id_set_name(vol_info, channel); - snd_mixer_selem_id_set_name(mute_info, channel); - pcm_mixer = snd_mixer_find_selem(handle, vol_info); - mas_mixer = snd_mixer_find_selem(handle, mute_info); - - snd_mixer_selem_get_playback_volume_range(pcm_mixer, &min, &max); - snd_mixer_selem_get_playback_volume(pcm_mixer, SND_MIXER_SCHN_MONO, &vol); - snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute); - - if (vol_info) - snd_mixer_selem_id_free(vol_info); - if (mute_info) - snd_mixer_selem_id_free(mute_info); - if (handle) + if (elem == NULL) { + snd_mixer_selem_id_free(s_elem); snd_mixer_close(handle); + warn("Failed to get volume percentage for %s", card); + return smprintf(UNKNOWN_STR); + } + + snd_mixer_handle_events(handle); + snd_mixer_selem_get_playback_volume_range(elem, &min, &max); + snd_mixer_selem_get_playback_volume(elem, 0, &vol); + snd_mixer_selem_get_playback_switch(elem, 0, &mute); + + snd_mixer_selem_id_free(s_elem); + snd_mixer_close(handle); if (!mute) return smprintf("mute"); + else if (max == 0) + return smprintf("0%%"); else - return smprintf("%d%%", (vol * 100) / max); + return smprintf("%lu%%", ((uint_fast16_t)(vol * 100) / max)); } static char * -wifi_perc(const char *wificard) +wifi_perc(const char *iface) { - int bufsize = 255; - int strength; - char buf[bufsize]; + int perc; + char buf[255]; char *datastart; - char path[64]; char status[5]; - char needle[sizeof wificard + 1]; FILE *fp; - memset(path, 0, sizeof path); - strlcat(path, "/sys/class/net/", sizeof(path)); - strlcat(path, wificard, sizeof(path)); - strlcat(path, "/operstate", sizeof(path)); - - if(!(fp = fopen(path, "r"))) { - fprintf(stderr, "Error opening wifi operstate file.\n"); - return smprintf(unknowntext); + ccat(3, "/sys/class/net/", iface, "/operstate"); + fp = fopen(concat, "r"); + if (fp == NULL) { + warn("Failed to open file %s", concat); + return smprintf(UNKNOWN_STR); } - fgets(status, 5, fp); fclose(fp); - if(strcmp(status, "up\n") != 0) - return smprintf(unknowntext); + if(strcmp(status, "up\n") != 0) { + return smprintf(UNKNOWN_STR); + } - if (!(fp = fopen("/proc/net/wireless", "r"))) { - fprintf(stderr, "Error opening wireless file.\n"); - return smprintf(unknowntext); + fp = fopen("/proc/net/wireless", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/net/wireless"); + return smprintf(UNKNOWN_STR); } + ccat(2, iface, ":"); + fgets(buf, sizeof(buf), fp); + fgets(buf, sizeof(buf), fp); + fgets(buf, sizeof(buf), fp); + fclose(fp); - strlcpy(needle, wificard, sizeof(needle)); - strlcat(needle, ":", sizeof(needle)); - fgets(buf, bufsize, fp); - fgets(buf, bufsize, fp); - fgets(buf, bufsize, fp); - if ((datastart = strstr(buf, needle)) != NULL) { + datastart = strstr(buf, concat); + if (datastart != NULL) { datastart = strstr(buf, ":"); - sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength); + sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc); } - fclose(fp); - return smprintf("%d%%", strength); + return smprintf("%d%%", perc); } static char * -wifi_essid(const char *wificard) +wifi_essid(const char *iface) { char id[IW_ESSID_MAX_SIZE+1]; - int sockfd; + int sockfd = socket(AF_INET, SOCK_DGRAM, 0); struct iwreq wreq; memset(&wreq, 0, sizeof(struct iwreq)); wreq.u.essid.length = IW_ESSID_MAX_SIZE+1; - sprintf(wreq.ifr_name, wificard); - if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) { - fprintf(stderr, "Cannot open socket for interface: %s\n", wificard); - return smprintf(unknowntext); + sprintf(wreq.ifr_name, iface); + if (sockfd == -1) { + warn("Failed to get ESSID for interface %s", iface); + return smprintf(UNKNOWN_STR); } wreq.u.essid.pointer = id; if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) { - fprintf(stderr, "Get ESSID ioctl failed for interface %s\n", wificard); - return smprintf(unknowntext); + warn("Failed to get ESSID for interface %s", iface); + return smprintf(UNKNOWN_STR); } + close(sockfd); + if (strcmp((char *)wreq.u.essid.pointer, "") == 0) - return smprintf(unknowntext); + return smprintf(UNKNOWN_STR); else return smprintf("%s", (char *)wreq.u.essid.pointer); } +static void +set_status(const char *str) +{ + XStoreName(dpy, DefaultRootWindow(dpy), str); + XSync(dpy, False); +} + +static void +sighandler(const int signo) +{ + if (signo == SIGTERM || signo == SIGINT) { + done = 1; + } +} + +static void +usage(void) +{ + fprintf(stderr, "usage: %s [-dhov]\n", argv0); + exit(1); +} + int -main(void) +main(int argc, char *argv[]) { - size_t i; + unsigned short int i; char status_string[4096]; char *res, *element; struct arg argument; + struct sigaction act; - if (!(dpy = XOpenDisplay(0x0))) { - fprintf(stderr, "Cannot open display!\n"); - exit(1); + ARGBEGIN { + case 'd': + dflag = 1; + break; + case 'o': + oflag = 1; + break; + case 'v': + printf("slstatus %s (C) 2016 slstatus engineers\n", VERSION); + return 0; + default: + usage(); + } ARGEND + + if (dflag && oflag) { + usage(); } + if (dflag && daemon(1, 1) < 0) { + err(1, "daemon"); + } + + memset(&act, 0, sizeof(act)); + act.sa_handler = sighandler; + sigaction(SIGINT, &act, 0); + sigaction(SIGTERM, &act, 0); + + if (!oflag) { + dpy = XOpenDisplay(NULL); + } + + setlocale(LC_ALL, ""); + + while (!done) { + status_string[0] = '\0'; - for (;;) { - memset(status_string, 0, sizeof(status_string)); for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) { argument = args[i]; - if (argument.args == NULL) + if (argument.args == NULL) { res = argument.func(); - else + } else { res = argument.func(argument.args); - element = smprintf(argument.format, res); + } + element = smprintf(argument.fmt, res); if (element == NULL) { - element = smprintf(unknowntext); - fprintf(stderr, "Failed to format output.\n"); + element = smprintf(UNKNOWN_STR); + warnx("Failed to format output"); } strlcat(status_string, element, sizeof(status_string)); free(res); free(element); } - setstatus(status_string); - sleep(update_interval -1); + if (!oflag) { + set_status(status_string); + } else { + printf("%s\n", status_string); + } + + /* + * subtract delay time spend in function + * calls from the actual global delay time + */ + sleep(UPDATE_INTERVAL - delay); + delay = 0; + } + + if (!oflag) { + set_status(NULL); + XCloseDisplay(dpy); } - XCloseDisplay(dpy); return 0; }