diff options
| -rw-r--r-- | slstatus.c | 223 |
1 files changed, 28 insertions, 195 deletions
@@ -1,6 +1,5 @@ /* See LICENSE file for copyright and license details. */ -/* global libraries */ #include <alsa/asoundlib.h> #include <arpa/inet.h> #include <fcntl.h> @@ -30,7 +29,6 @@ #include "strlcat.h" #include "strlcpy.h" -/* statusbar configuration type and struct */ typedef char *(*op_fun) (const char *); struct arg { op_fun func; @@ -38,41 +36,37 @@ struct arg { const char *args; }; -/* function declarations */ -void setstatus(const char *str); -char *smprintf(const char *fmt, ...); -char *battery_perc(const char *battery); -char *cpu_perc(const char *null); -char *datetime(const char *timeformat); -char *disk_free(const char *mountpoint); -char *disk_perc(const char *mountpoint); -char *disk_total(const char *mountpoint); -char *disk_used(const char *mountpoint); -char *entropy(const char *null); -char *gid(const char *null); -char *hostname(const char *null); -char *ip(const char *interface); -char *load_avg(const char *null); -char *ram_free(const char *null); -char *ram_perc(const char *null); -char *ram_used(const char *null); -char *ram_total(const char *null); -char *run_command(const char *command); -char *temp(const char *file); -char *uid(const char *null); -char *uptime(const char *null); -char *username(const char *null); -char *vol_perc(const char *soundcard); -char *wifi_perc(const char *wificard); -char *wifi_essid(const char *wificard); - -/* global variables */ +void setstatus(const char *); +char *smprintf(const char *, ...); +char *battery_perc(const char *); +char *cpu_perc(const char *); +char *datetime(const char *); +char *disk_free(const char *); +char *disk_perc(const char *); +char *disk_total(const char *); +char *disk_used(const char *); +char *entropy(const char *); +char *gid(const char *); +char *hostname(const char *); +char *ip(const char *); +char *load_avg(const char *); +char *ram_free(const char *); +char *ram_perc(const char *); +char *ram_used(const char *); +char *ram_total(const char *); +char *run_command(const char *); +char *temp(const char *); +char *uid(const char *); +char *uptime(const char *); +char *username(const char *); +char *vol_perc(const char *); +char *wifi_perc(const char *); +char *wifi_essid(const char *); + static Display *dpy; -/* configuration header */ #include "config.h" -/* set statusbar */ void setstatus(const char *str) { @@ -81,7 +75,6 @@ setstatus(const char *str) XSync(dpy, False); } -/* smprintf function */ char * smprintf(const char *fmt, ...) { @@ -96,7 +89,6 @@ smprintf(const char *fmt, ...) return ret; } -/* battery percentage */ char * battery_perc(const char *battery) { @@ -105,50 +97,37 @@ battery_perc(const char *battery) char batteryfullfile[64] = ""; FILE *fp; - /* generate battery nowfile path */ strlcat(batterynowfile, batterypath, sizeof(batterynowfile)); strlcat(batterynowfile, battery, sizeof(batterynowfile)); strlcat(batterynowfile, "/", sizeof(batterynowfile)); strlcat(batterynowfile, batterynow, sizeof(batterynowfile)); - /* generate battery fullfile path */ strlcat(batteryfullfile, batterypath, sizeof(batteryfullfile)); strlcat(batteryfullfile, battery, sizeof(batteryfullfile)); strlcat(batteryfullfile, "/", sizeof(batteryfullfile)); strlcat(batteryfullfile, batteryfull, sizeof(batteryfullfile)); - /* open battery now file */ if (!(fp = fopen(batterynowfile, "r"))) { fprintf(stderr, "Error opening battery file: %s.\n", batterynowfile); return smprintf(unknowntext); } - /* read value */ fscanf(fp, "%i", &now); - - /* close battery now file */ fclose(fp); - /* open battery full file */ if (!(fp = fopen(batteryfullfile, "r"))) { fprintf(stderr, "Error opening battery file.\n"); return smprintf(unknowntext); } - /* read value */ fscanf(fp, "%i", &full); - - /* close battery full file */ fclose(fp); - /* calculate percent */ perc = now / (full / 100); - /* return perc as string */ return smprintf("%d%%", perc); } -/* cpu percentage */ char * cpu_perc(const char *null) { @@ -156,41 +135,28 @@ cpu_perc(const char *null) long double a[4], b[4]; FILE *fp; - /* open stat file */ if (!(fp = fopen("/proc/stat","r"))) { fprintf(stderr, "Error opening stat file.\n"); return smprintf(unknowntext); } - /* read values */ fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]); - - /* close stat file */ fclose(fp); /* wait a second (for avg values) */ sleep(1); - /* open stat file */ if (!(fp = fopen("/proc/stat","r"))) { fprintf(stderr, "Error opening stat file.\n"); return smprintf(unknowntext); } - /* read values */ fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]); - - /* close stat file */ fclose(fp); - - /* calculate avg in this second */ 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 perc as string */ return smprintf("%d%%", perc); } -/* date and time */ char * datetime(const char *timeformat) { @@ -202,7 +168,6 @@ datetime(const char *timeformat) return smprintf(unknowntext); } - /* get time in format */ time(&tm); setlocale(LC_TIME, ""); if (!strftime(buf, bufsize, timeformat, localtime(&tm))) { @@ -213,104 +178,80 @@ datetime(const char *timeformat) } setlocale(LC_TIME, "C"); - /* return time */ char *ret = smprintf("%s", buf); free(buf); return ret; } -/* disk free */ char * disk_free(const char *mountpoint) { struct statvfs fs; - /* try to open mountpoint */ if (statvfs(mountpoint, &fs) < 0) { fprintf(stderr, "Could not get filesystem info.\n"); return smprintf(unknowntext); } - - /* return free */ return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024); } -/* disk usage percentage */ char * disk_perc(const char *mountpoint) { int perc = 0; struct statvfs fs; - /* try to open mountpoint */ if (statvfs(mountpoint, &fs) < 0) { fprintf(stderr, "Could not get filesystem info.\n"); return smprintf(unknowntext); } - /* calculate percent */ perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks)); - - /* return perc */ return smprintf("%d%%", perc); } -/* disk total */ char * disk_total(const char *mountpoint) { struct statvfs fs; - /* try to open mountpoint */ if (statvfs(mountpoint, &fs) < 0) { fprintf(stderr, "Could not get filesystem info.\n"); return smprintf(unknowntext); } - /* return total */ return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024); } -/* disk used */ char * disk_used(const char *mountpoint) { struct statvfs fs; - /* try to open mountpoint */ if (statvfs(mountpoint, &fs) < 0) { fprintf(stderr, "Could not get filesystem info.\n"); return smprintf(unknowntext); } - /* return used */ return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024); } -/* entropy available */ char * entropy(const char *null) { int entropy = 0; FILE *fp; - /* open entropy file */ if (!(fp = fopen("/proc/sys/kernel/random/entropy_avail", "r"))) { fprintf(stderr, "Could not open entropy file.\n"); return smprintf(unknowntext); } - /* extract entropy */ fscanf(fp, "%d", &entropy); - - /* close entropy file */ fclose(fp); - - /* return entropy */ return smprintf("%d", entropy); } -/* gid */ char * gid(const char *null) { @@ -319,37 +260,27 @@ gid(const char *null) if ((gid = getgid()) < 0) { fprintf(stderr, "Could no get gid.\n"); return smprintf(unknowntext); - } else { + } else return smprintf("%d", gid); - } - return smprintf(unknowntext); } -/* hostname */ char * hostname(const char *null) { char hostname[HOST_NAME_MAX]; FILE *fp; - /* open hostname file */ if (!(fp = fopen("/proc/sys/kernel/hostname", "r"))) { fprintf(stderr, "Could not open hostname file.\n"); return smprintf(unknowntext); } - /* extract hostname */ fscanf(fp, "%s\n", hostname); - - /* close hostname file */ fclose(fp); - - /* return entropy */ return smprintf("%s", hostname); } -/* ip address */ char * ip(const char *interface) { @@ -357,7 +288,6 @@ ip(const char *interface) int s; char host[NI_MAXHOST]; - /* check if getting ip address works */ if (getifaddrs(&ifaddr) == -1) { fprintf(stderr, "Error getting IP address.\n"); return smprintf(unknowntext); @@ -385,46 +315,35 @@ ip(const char *interface) return smprintf(unknowntext); } -/* load avg */ char * load_avg(const char *null) { double avgs[3]; - /* try to get load avg */ if (getloadavg(avgs, 3) < 0) { fprintf(stderr, "Error getting load avg.\n"); return smprintf(unknowntext); } - /* return it */ return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]); } -/* ram free */ char * ram_free(const char *null) { long free; FILE *fp; - /* open meminfo file */ if (!(fp = fopen("/proc/meminfo", "r"))) { fprintf(stderr, "Error opening meminfo file.\n"); return smprintf(unknowntext); } - /* read the values */ fscanf(fp, "MemFree: %ld kB\n", &free); - - /* close meminfo file */ fclose(fp); - - /* return free ram as string */ return smprintf("%f", (float)free / 1024 / 1024); } -/* ram percentage */ char * ram_perc(const char *null) { @@ -432,81 +351,58 @@ ram_perc(const char *null) long total, free, buffers, cached; FILE *fp; - /* open meminfo file */ if (!(fp = fopen("/proc/meminfo", "r"))) { fprintf(stderr, "Error opening meminfo file.\n"); return smprintf(unknowntext); } - /* read the values */ 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); - /* close meminfo file */ fclose(fp); - - /* calculate percentage */ perc = 100 * ((total - free) - (buffers + cached)) / total; - - /* return perc as string */ return smprintf("%d%%", perc); } -/* ram total */ char * ram_total(const char *null) { long total; FILE *fp; - /* open meminfo file */ if (!(fp = fopen("/proc/meminfo", "r"))) { fprintf(stderr, "Error opening meminfo file.\n"); return smprintf(unknowntext); } - /* read the values */ fscanf(fp, "MemTotal: %ld kB\n", &total); - - /* close meminfo file */ fclose(fp); - - /* return total ram as string */ return smprintf("%f", (float)total / 1024 / 1024); } -/* ram used */ char * ram_used(const char *null) { long free, total, buffers, cached, used; FILE *fp; - /* open meminfo file */ if (!(fp = fopen("/proc/meminfo", "r"))) { fprintf(stderr, "Error opening meminfo file.\n"); return smprintf(unknowntext); } - /* read the values */ 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); - /* close meminfo file */ fclose(fp); - - /* calculate used */ used = total - free - buffers - cached; - - /* return used ram as string */ return smprintf("%f", (float)used / 1024 / 1024); } -/* custom shell command */ char * run_command(const char* command) { @@ -514,19 +410,13 @@ run_command(const char* command) FILE *fp; char buffer[64]; - /* try to open the command output */ if (!(fp = popen(command, "r"))) { fprintf(stderr, "Could not get command output for: %s.\n", command); return smprintf(unknowntext); } - /* get command output text, save it to buffer */ fgets(buffer, sizeof(buffer) - 1, fp); - - /* close it again */ pclose(fp); - - /* add nullchar at the end */ for (int i = 0 ; i != sizeof(buffer); i++) { if (buffer[i] == '\0') { good = 1; @@ -535,35 +425,25 @@ run_command(const char* command) } if (good) buffer[strlen(buffer) - 1] = '\0'; - - /* return the output */ return smprintf("%s", buffer); } -/* temperature */ char * temp(const char *file) { int temperature; FILE *fp; - /* open temperature file */ if (!(fp = fopen(file, "r"))) { fprintf(stderr, "Could not open temperature file.\n"); return smprintf(unknowntext); } - /* extract temperature */ fscanf(fp, "%d", &temperature); - - /* close temperature file */ fclose(fp); - - /* return temperature in degrees */ return smprintf("%d°C", temperature / 1000); } -/* uptime */ char * uptime(const char *null) { @@ -571,27 +451,22 @@ uptime(const char *null) int hours = 0; int minutes = 0; - /* get info */ sysinfo(&info); hours = info.uptime / 3600; minutes = (info.uptime - hours * 3600 ) / 60; - /* return it */ return smprintf("%dh %dm", hours, minutes); } -/* username */ char * username(const char *null) { register struct passwd *pw; register uid_t uid; - /* get the values */ uid = geteuid(); pw = getpwuid(uid); - /* if it worked, return */ if (pw) return smprintf("%s", pw->pw_name); else { @@ -602,16 +477,13 @@ username(const char *null) return smprintf(unknowntext); } -/* uid */ char * uid(const char *null) { register uid_t uid; - /* get the values */ uid = geteuid(); - /* if it worked, return */ if (uid) return smprintf("%d", uid); else { @@ -623,7 +495,6 @@ uid(const char *null) } -/* alsa volume percentage */ char * vol_perc(const char *soundcard) { @@ -633,16 +504,13 @@ vol_perc(const char *soundcard) snd_mixer_elem_t *pcm_mixer, *mas_mixer; snd_mixer_selem_id_t *vol_info, *mute_info; - /* open everything */ snd_mixer_open(&handle, 0); snd_mixer_attach(handle, soundcard); snd_mixer_selem_register(handle, NULL, NULL); snd_mixer_load(handle); - /* prepare everything */ snd_mixer_selem_id_malloc(&vol_info); snd_mixer_selem_id_malloc(&mute_info); - /* check */ if (vol_info == NULL || mute_info == NULL) { fprintf(stderr, "Could not get alsa volume.\n"); return smprintf(unknowntext); @@ -652,12 +520,10 @@ vol_perc(const char *soundcard) pcm_mixer = snd_mixer_find_selem(handle, vol_info); mas_mixer = snd_mixer_find_selem(handle, mute_info); - /* get the info */ snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, &min, &max); snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, SND_MIXER_SCHN_MONO, &vol); snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute); - /* clean up */ if (vol_info) snd_mixer_selem_id_free(vol_info); if (mute_info) @@ -665,14 +531,12 @@ vol_perc(const char *soundcard) if (handle) snd_mixer_close(handle); - /* return the string (mute) */ if (!mute) return smprintf("mute"); else return smprintf("%d%%", (vol * 100) / max); } -/* wifi percentage */ char * wifi_perc(const char *wificard) { @@ -685,35 +549,26 @@ wifi_perc(const char *wificard) char needle[sizeof wificard + 1]; FILE *fp; - /* generate the path name */ memset(path, 0, sizeof path); strlcat(path, "/sys/class/net/", sizeof(path)); strlcat(path, wificard, sizeof(path)); strlcat(path, "/operstate", sizeof(path)); - /* open wifi file */ if(!(fp = fopen(path, "r"))) { fprintf(stderr, "Error opening wifi operstate file.\n"); return smprintf(unknowntext); } - /* read the status */ fgets(status, 5, fp); - - /* close wifi file */ fclose(fp); - - /* check if interface down */ if(strcmp(status, "up\n") != 0) return smprintf(unknowntext); - /* open wifi file */ if (!(fp = fopen("/proc/net/wireless", "r"))) { fprintf(stderr, "Error opening wireless file.\n"); return smprintf(unknowntext); } - /* extract the signal strength */ strlcpy(needle, wificard, sizeof(needle)); strlcat(needle, ":", sizeof(needle)); fgets(buf, bufsize, fp); @@ -724,14 +579,10 @@ wifi_perc(const char *wificard) sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength); } - /* close wifi file */ fclose(fp); - - /* return strength in percent */ return smprintf("%d%%", strength); } -/* wifi essid */ char * wifi_essid(const char *wificard) { @@ -739,14 +590,9 @@ wifi_essid(const char *wificard) int sockfd; struct iwreq wreq; - /* prepare */ memset(&wreq, 0, sizeof(struct iwreq)); wreq.u.essid.length = IW_ESSID_MAX_SIZE+1; - - /* set the interface */ sprintf(wreq.ifr_name, wificard); - - /* check */ if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) { fprintf(stderr, "Cannot open socket for interface: %s\n", wificard); return smprintf(unknowntext); @@ -757,32 +603,25 @@ wifi_essid(const char *wificard) return smprintf(unknowntext); } - /* return the essid */ if (strcmp((char *)wreq.u.essid.pointer, "") == 0) return smprintf(unknowntext); else return smprintf("%s", (char *)wreq.u.essid.pointer); } -/* main function */ int main(void) { char status_string[1024]; struct arg argument; - /* try to open display */ if (!(dpy = XOpenDisplay(0x0))) { fprintf(stderr, "Cannot open display!\n"); exit(1); } - /* return status every interval */ for (;;) { - /* clear the string */ memset(status_string, 0, sizeof(status_string)); - - /* generate status_string */ for (size_t i = 0; i < sizeof(args) / sizeof(args[0]); ++i) { argument = args[i]; char *res = argument.func(argument.args); @@ -796,16 +635,10 @@ main(void) free(element); } - /* return the statusbar */ setstatus(status_string); - - /* wait, "update_interval - 1" because of get_cpu_usage() which uses 1 second */ sleep(update_interval -1); } - /* close display */ XCloseDisplay(dpy); - - /* exit successfully */ return 0; } |