X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/1c8aa5318f13710defb4fb34288b8e6c444ac823..3468a6e368974ea222ab81c389e0800748541c42:/slstatus.c diff --git a/slstatus.c b/slstatus.c index af26fe7..cd6cc8f 100644 --- a/slstatus.c +++ b/slstatus.c @@ -1,5 +1,5 @@ /* See LICENSE file for copyright and license details. */ - +#include #include #include #include @@ -27,13 +27,14 @@ #include "arg.h" +#define LEN(x) (sizeof (x) / sizeof *(x)) + struct arg { const char *(*func)(); const char *fmt; const char *args; }; -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); @@ -51,6 +52,7 @@ 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); @@ -67,13 +69,10 @@ 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(const int eval); char *argv0; static unsigned short int delay = 0; static unsigned short int done; -static unsigned short int dflag, oflag, nflag; static Display *dpy; #include "config.h" @@ -107,12 +106,12 @@ battery_perc(const char *bat) fp = fopen(path, "r"); if (fp == NULL) { warn("Failed to open file %s", path); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%i", &perc); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%d", perc); } @@ -128,12 +127,12 @@ battery_power(const char *bat) fp = fopen(path, "r"); if (fp == NULL) { warn("Failed to open file %s", path); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%i", &watts); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%d", (watts + 500000) / 1000000); } @@ -141,33 +140,38 @@ battery_power(const char *bat) static const char * battery_state(const char *bat) { - char path[PATH_MAX]; - char state[12]; FILE *fp; + struct { + char *state; + char *symbol; + } map[] = { + { "Charging", "+" }, + { "Discharging", "-" }, + { "Full", "=" }, + { "Unknown", "/" }, + }; + size_t i; int n; + char path[PATH_MAX], state[12]; snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status"); fp = fopen(path, "r"); if (fp == NULL) { warn("Failed to open file %s", path); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%12s", state); fclose(fp); if (n != 1) - return UNKNOWN_STR; + 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 "?"; + for (i = 0; i < LEN(map); i++) { + if (!strcmp(map[i].state, state)) { + break; + } } + + return (i == LEN(map)) ? "?" : map[i].symbol; } static const char * @@ -179,12 +183,12 @@ cpu_freq(void) 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; + return unknown_str; } n = fscanf(fp, "%i", &freq); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%d", (freq + 500) / 1000); } @@ -199,12 +203,12 @@ cpu_perc(void) fp = fopen("/proc/stat", "r"); if (fp == NULL) { warn("Failed to open file /proc/stat"); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]); fclose(fp); if (n != 4) - return UNKNOWN_STR; + return unknown_str; delay++; sleep(delay); @@ -212,12 +216,12 @@ cpu_perc(void) fp = fopen("/proc/stat", "r"); if (fp == NULL) { warn("Failed to open file /proc/stat"); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]); fclose(fp); if (n != 4) - return UNKNOWN_STR; + 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 bprintf("%d", perc); @@ -230,7 +234,7 @@ datetime(const char *fmt) t = time(NULL); if (strftime(buf, sizeof(buf), fmt, localtime(&t)) == 0) - return UNKNOWN_STR; + return unknown_str; return buf; } @@ -242,7 +246,7 @@ disk_free(const char *mnt) if (statvfs(mnt, &fs) < 0) { warn("Failed to get filesystem info"); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024); @@ -256,7 +260,7 @@ disk_perc(const char *mnt) if (statvfs(mnt, &fs) < 0) { warn("Failed to get filesystem info"); - return UNKNOWN_STR; + return unknown_str; } perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks)); @@ -271,7 +275,7 @@ disk_total(const char *mnt) if (statvfs(mnt, &fs) < 0) { warn("Failed to get filesystem info"); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024); @@ -284,7 +288,7 @@ disk_used(const char *mnt) if (statvfs(mnt, &fs) < 0) { warn("Failed to get filesystem info"); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024); @@ -299,12 +303,12 @@ entropy(void) fp= fopen("/proc/sys/kernel/random/entropy_avail", "r"); if (fp == NULL) { warn("Failed to open file /proc/sys/kernel/random/entropy_avail"); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%d", &num); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%d", num); } @@ -320,7 +324,7 @@ hostname(void) { if (gethostname(buf, sizeof(buf)) == -1) { warn("hostname"); - return UNKNOWN_STR; + return unknown_str; } return buf; @@ -335,7 +339,7 @@ ip(const char *iface) if (getifaddrs(&ifaddr) == -1) { warn("Failed to get IP address for interface %s", iface); - return UNKNOWN_STR; + return unknown_str; } for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { @@ -346,7 +350,7 @@ ip(const char *iface) if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) { if (s != 0) { warnx("Failed to get IP address for interface %s", iface); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%s", host); } @@ -354,7 +358,7 @@ ip(const char *iface) freeifaddrs(ifaddr); - return UNKNOWN_STR; + return unknown_str; } static const char * @@ -363,7 +367,7 @@ kernel_release(void) struct utsname udata; if (uname(&udata) < 0) { - return UNKNOWN_STR; + return unknown_str; } return bprintf("%s", udata.release); @@ -374,6 +378,11 @@ keyboard_indicators(void) { Display *dpy = XOpenDisplay(NULL); XKeyboardState state; + + if (dpy == NULL) { + warnx("XOpenDisplay failed"); + return unknown_str; + } XGetKeyboardControl(dpy, &state); XCloseDisplay(dpy); @@ -396,12 +405,35 @@ load_avg(void) if (getloadavg(avgs, 3) < 0) { warnx("Failed to get the load avg"); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]); } +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) { @@ -412,12 +444,12 @@ ram_free(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "MemFree: %ld kB\n", &free); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%f", (float)free / 1024 / 1024); } @@ -431,7 +463,7 @@ ram_perc(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + return unknown_str; } if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 || fscanf(fp, "MemFree: %ld kB\n", &free) != 1 || @@ -445,7 +477,7 @@ ram_perc(void) scanerr: fclose(fp); - return UNKNOWN_STR; + return unknown_str; } static const char * @@ -458,12 +490,12 @@ ram_total(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "MemTotal: %ld kB\n", &total); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%f", (float)total / 1024 / 1024); } @@ -477,7 +509,7 @@ ram_used(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + return unknown_str; } if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 || fscanf(fp, "MemFree: %ld kB\n", &free) != 1 || @@ -491,7 +523,7 @@ ram_used(void) scanerr: fclose(fp); - return UNKNOWN_STR; + return unknown_str; } static const char * @@ -503,16 +535,16 @@ run_command(const char *cmd) fp = popen(cmd, "r"); if (fp == NULL) { warn("Failed to get command output for %s", cmd); - return UNKNOWN_STR; + return unknown_str; } p = fgets(buf, sizeof(buf) - 1, fp); pclose(fp); if (!p) - return UNKNOWN_STR; + return unknown_str; if ((p = strrchr(buf, '\n')) != NULL) p[0] = '\0'; - return buf[0] ? buf : UNKNOWN_STR; + return buf[0] ? buf : unknown_str; } static const char * @@ -526,22 +558,22 @@ swap_free(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + 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; + return unknown_str; } fclose(fp); if ((match = strstr(buf, "SwapTotal")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapTotal: %ld kB\n", &total); if ((match = strstr(buf, "SwapFree")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapFree: %ld kB\n", &free); return bprintf("%f", (float)free / 1024 / 1024); @@ -558,26 +590,26 @@ swap_perc(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + return unknown_str; } if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) { warn("swap_perc: read error"); fclose(fp); - return UNKNOWN_STR; + return unknown_str; } fclose(fp); if ((match = strstr(buf, "SwapTotal")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapTotal: %ld kB\n", &total); if ((match = strstr(buf, "SwapCached")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapCached: %ld kB\n", &cached); if ((match = strstr(buf, "SwapFree")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapFree: %ld kB\n", &free); return bprintf("%d", 100 * (total - free - cached) / total); @@ -594,17 +626,17 @@ swap_total(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + 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; + return unknown_str; } fclose(fp); if ((match = strstr(buf, "SwapTotal")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapTotal: %ld kB\n", &total); return bprintf("%f", (float)total / 1024 / 1024); @@ -621,25 +653,25 @@ swap_used(void) fp = fopen("/proc/meminfo", "r"); if (fp == NULL) { warn("Failed to open file /proc/meminfo"); - return UNKNOWN_STR; + 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; + return unknown_str; } fclose(fp); if ((match = strstr(buf, "SwapTotal")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapTotal: %ld kB\n", &total); if ((match = strstr(buf, "SwapCached")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapCached: %ld kB\n", &cached); if ((match = strstr(buf, "SwapFree")) == NULL) - return UNKNOWN_STR; + return unknown_str; sscanf(match, "SwapFree: %ld kB\n", &free); return bprintf("%f", (float)(total - free - cached) / 1024 / 1024); @@ -654,12 +686,12 @@ temp(const char *file) fp = fopen(file, "r"); if (fp == NULL) { warn("Failed to open file %s", file); - return UNKNOWN_STR; + return unknown_str; } n = fscanf(fp, "%d", &temp); fclose(fp); if (n != 1) - return UNKNOWN_STR; + return unknown_str; return bprintf("%d", temp / 1000); } @@ -685,7 +717,7 @@ username(void) if (pw == NULL) { warn("Failed to get username"); - return UNKNOWN_STR; + return unknown_str; } return bprintf("%s", pw->pw_name); @@ -708,20 +740,20 @@ vol_perc(const char *card) afd = open(card, O_RDONLY | O_NONBLOCK); if (afd == -1) { warn("Cannot open %s", card); - return UNKNOWN_STR; + return unknown_str; } if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) { warn("Cannot get volume for %s", card); close(afd); - return UNKNOWN_STR; + return unknown_str; } - for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) { + for (i = 0; i < LEN(vnames); i++) { if (devmask & (1 << i) && !strcmp("vol", vnames[i])) { if (ioctl(afd, MIXER_READ(i), &v) == -1) { warn("vol_perc: ioctl"); close(afd); - return UNKNOWN_STR; + return unknown_str; } } } @@ -744,18 +776,18 @@ wifi_perc(const char *iface) fp = fopen(path, "r"); if (fp == NULL) { warn("Failed to open file %s", path); - return UNKNOWN_STR; + return unknown_str; } p = fgets(status, 5, fp); fclose(fp); if(!p || strcmp(status, "up\n") != 0) { - return UNKNOWN_STR; + return unknown_str; } fp = fopen("/proc/net/wireless", "r"); if (fp == NULL) { warn("Failed to open file /proc/net/wireless"); - return UNKNOWN_STR; + return unknown_str; } for (i = 0; i < 3; i++) { @@ -764,10 +796,10 @@ wifi_perc(const char *iface) } fclose(fp); if (i < 2 || !p) - return UNKNOWN_STR; + return unknown_str; if ((datastart = strstr(buf, iface)) == NULL) - return UNKNOWN_STR; + return unknown_str; datastart = (datastart+(strlen(iface)+1)); sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc); @@ -788,80 +820,68 @@ wifi_essid(const char *iface) if (sockfd == -1) { warn("Failed to get ESSID for interface %s", iface); - return UNKNOWN_STR; + return unknown_str; } wreq.u.essid.pointer = id; if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) { warn("Failed to get ESSID for interface %s", iface); - return UNKNOWN_STR; + return unknown_str; } close(sockfd); if (strcmp(id, "") == 0) - return UNKNOWN_STR; + return unknown_str; else return id; } static void -sighandler(const int signo) +terminate(const int signo) { - if (signo == SIGTERM || signo == SIGINT) { - done = 1; - } + done = 1; } static void -usage(const int eval) +usage(void) { - fprintf(stderr, "usage: %s [-d] [-o] [-n] [-v] [-h]\n", argv0); - exit(eval); + fprintf(stderr, "usage: %s [-s]\n", argv0); + exit(1); } int main(int argc, char *argv[]) { - unsigned short int i; - char status_string[MAXLEN]; - char *element; struct arg argument; struct sigaction act; - size_t len; + size_t i, len; + int sflag = 0; + char status_string[MAXLEN]; + char *element; ARGBEGIN { - case 'd': - dflag = 1; - break; - case 'o': - oflag = 1; - break; - case 'n': - nflag = 1; + case 's': + sflag = 1; break; - case 'v': - printf("slstatus (C) 2016-2017 slstatus engineers\n"); - return 0; - case 'h': - usage(0); default: - usage(1); + usage(); } ARGEND - if ((dflag && oflag) || (dflag && nflag) || (oflag && nflag)) { - usage(1); - } - if (dflag && daemon(1, 1) < 0) { - err(1, "daemon"); + if (argc) { + usage(); } memset(&act, 0, sizeof(act)); - act.sa_handler = sighandler; - sigaction(SIGINT, &act, 0); - sigaction(SIGTERM, &act, 0); + act.sa_handler = terminate; + sigaction(SIGINT, &act, NULL); + sigaction(SIGTERM, &act, NULL); - if (!oflag) { + if (!sflag) { dpy = XOpenDisplay(NULL); + if (!dpy) { + fprintf(stderr, "slstatus: cannot open display"); + exit(1); + } } setlocale(LC_ALL, ""); @@ -869,8 +889,7 @@ main(int argc, char *argv[]) while (!done) { status_string[0] = '\0'; - for (element = status_string, i = len = 0; - i < sizeof(args) / sizeof(args[0]); + for (element = status_string, i = len = 0; i < LEN(args); ++i, element += len) { argument = args[i]; len = snprintf(element, sizeof(status_string)-1 - len, @@ -882,26 +901,23 @@ main(int argc, char *argv[]) } } - if (oflag) { - printf("%s\n", status_string); - } else if (nflag) { + if (sflag) { printf("%s\n", status_string); - done = 1; } else { XStoreName(dpy, DefaultRootWindow(dpy), status_string); XSync(dpy, False); } - if ((UPDATE_INTERVAL - delay) <= 0) { + if ((update_interval - delay) <= 0) { delay = 0; continue; } else { - sleep(UPDATE_INTERVAL - delay); + sleep(update_interval - delay); delay = 0; } } - if (!oflag) { + if (!sflag) { XStoreName(dpy, DefaultRootWindow(dpy), NULL); XCloseDisplay(dpy); }