the code describes itself, there is no need to write stories in /* */
This commit is contained in:
Ali H. Fardan
parent
1853884520
commit
2e1eb518af
221
slstatus.c
221
slstatus.c
@ -1,6 +1,5 @@
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/* See LICENSE file for copyright and license details. */
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/* global libraries */
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#include <alsa/asoundlib.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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@ -30,7 +29,6 @@
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#include "strlcat.h"
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#include "strlcpy.h"
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/* statusbar configuration type and struct */
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typedef char *(*op_fun) (const char *);
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struct arg {
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op_fun func;
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@ -38,41 +36,37 @@ struct arg {
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const char *args;
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};
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/* function declarations */
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void setstatus(const char *str);
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char *smprintf(const char *fmt, ...);
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char *battery_perc(const char *battery);
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char *cpu_perc(const char *null);
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char *datetime(const char *timeformat);
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char *disk_free(const char *mountpoint);
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char *disk_perc(const char *mountpoint);
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char *disk_total(const char *mountpoint);
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char *disk_used(const char *mountpoint);
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char *entropy(const char *null);
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char *gid(const char *null);
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char *hostname(const char *null);
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char *ip(const char *interface);
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char *load_avg(const char *null);
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char *ram_free(const char *null);
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char *ram_perc(const char *null);
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char *ram_used(const char *null);
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char *ram_total(const char *null);
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char *run_command(const char *command);
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char *temp(const char *file);
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char *uid(const char *null);
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char *uptime(const char *null);
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char *username(const char *null);
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char *vol_perc(const char *soundcard);
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char *wifi_perc(const char *wificard);
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char *wifi_essid(const char *wificard);
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void setstatus(const char *);
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char *smprintf(const char *, ...);
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char *battery_perc(const char *);
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char *cpu_perc(const char *);
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char *datetime(const char *);
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char *disk_free(const char *);
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char *disk_perc(const char *);
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char *disk_total(const char *);
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char *disk_used(const char *);
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char *entropy(const char *);
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char *gid(const char *);
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char *hostname(const char *);
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char *ip(const char *);
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char *load_avg(const char *);
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char *ram_free(const char *);
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char *ram_perc(const char *);
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char *ram_used(const char *);
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char *ram_total(const char *);
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char *run_command(const char *);
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char *temp(const char *);
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char *uid(const char *);
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char *uptime(const char *);
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char *username(const char *);
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char *vol_perc(const char *);
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char *wifi_perc(const char *);
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char *wifi_essid(const char *);
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/* global variables */
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static Display *dpy;
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/* configuration header */
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#include "config.h"
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/* set statusbar */
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void
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setstatus(const char *str)
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{
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@ -81,7 +75,6 @@ setstatus(const char *str)
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XSync(dpy, False);
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}
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/* smprintf function */
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char *
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smprintf(const char *fmt, ...)
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{
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@ -96,7 +89,6 @@ smprintf(const char *fmt, ...)
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return ret;
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}
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/* battery percentage */
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char *
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battery_perc(const char *battery)
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{
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@ -105,50 +97,37 @@ battery_perc(const char *battery)
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char batteryfullfile[64] = "";
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FILE *fp;
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/* generate battery nowfile path */
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strlcat(batterynowfile, batterypath, sizeof(batterynowfile));
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strlcat(batterynowfile, battery, sizeof(batterynowfile));
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strlcat(batterynowfile, "/", sizeof(batterynowfile));
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strlcat(batterynowfile, batterynow, sizeof(batterynowfile));
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/* generate battery fullfile path */
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strlcat(batteryfullfile, batterypath, sizeof(batteryfullfile));
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strlcat(batteryfullfile, battery, sizeof(batteryfullfile));
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strlcat(batteryfullfile, "/", sizeof(batteryfullfile));
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strlcat(batteryfullfile, batteryfull, sizeof(batteryfullfile));
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/* open battery now file */
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if (!(fp = fopen(batterynowfile, "r"))) {
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fprintf(stderr, "Error opening battery file: %s.\n", batterynowfile);
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return smprintf(unknowntext);
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}
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/* read value */
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fscanf(fp, "%i", &now);
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/* close battery now file */
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fclose(fp);
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/* open battery full file */
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if (!(fp = fopen(batteryfullfile, "r"))) {
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fprintf(stderr, "Error opening battery file.\n");
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return smprintf(unknowntext);
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}
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/* read value */
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fscanf(fp, "%i", &full);
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/* close battery full file */
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fclose(fp);
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/* calculate percent */
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perc = now / (full / 100);
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/* return perc as string */
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return smprintf("%d%%", perc);
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}
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/* cpu percentage */
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char *
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cpu_perc(const char *null)
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{
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@ -156,41 +135,28 @@ cpu_perc(const char *null)
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long double a[4], b[4];
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FILE *fp;
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.\n");
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return smprintf(unknowntext);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
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/* close stat file */
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fclose(fp);
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/* wait a second (for avg values) */
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sleep(1);
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.\n");
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return smprintf(unknowntext);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
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/* close stat file */
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fclose(fp);
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/* calculate avg in this second */
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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]));
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/* return perc as string */
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return smprintf("%d%%", perc);
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}
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/* date and time */
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char *
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datetime(const char *timeformat)
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{
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@ -202,7 +168,6 @@ datetime(const char *timeformat)
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return smprintf(unknowntext);
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}
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/* get time in format */
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time(&tm);
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setlocale(LC_TIME, "");
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if (!strftime(buf, bufsize, timeformat, localtime(&tm))) {
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@ -213,104 +178,80 @@ datetime(const char *timeformat)
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}
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setlocale(LC_TIME, "C");
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/* return time */
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char *ret = smprintf("%s", buf);
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free(buf);
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return ret;
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}
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/* disk free */
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char *
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disk_free(const char *mountpoint)
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{
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struct statvfs fs;
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/* try to open mountpoint */
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if (statvfs(mountpoint, &fs) < 0) {
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fprintf(stderr, "Could not get filesystem info.\n");
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return smprintf(unknowntext);
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}
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/* return free */
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return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
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}
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/* disk usage percentage */
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char *
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disk_perc(const char *mountpoint)
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{
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int perc = 0;
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struct statvfs fs;
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/* try to open mountpoint */
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if (statvfs(mountpoint, &fs) < 0) {
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fprintf(stderr, "Could not get filesystem info.\n");
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return smprintf(unknowntext);
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}
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/* calculate percent */
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perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
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/* return perc */
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return smprintf("%d%%", perc);
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}
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/* disk total */
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char *
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disk_total(const char *mountpoint)
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{
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struct statvfs fs;
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/* try to open mountpoint */
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if (statvfs(mountpoint, &fs) < 0) {
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fprintf(stderr, "Could not get filesystem info.\n");
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return smprintf(unknowntext);
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}
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/* return total */
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return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
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}
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/* disk used */
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char *
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disk_used(const char *mountpoint)
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{
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struct statvfs fs;
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/* try to open mountpoint */
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if (statvfs(mountpoint, &fs) < 0) {
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fprintf(stderr, "Could not get filesystem info.\n");
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return smprintf(unknowntext);
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}
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/* return used */
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return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
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}
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/* entropy available */
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char *
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entropy(const char *null)
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{
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int entropy = 0;
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FILE *fp;
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/* open entropy file */
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if (!(fp = fopen("/proc/sys/kernel/random/entropy_avail", "r"))) {
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fprintf(stderr, "Could not open entropy file.\n");
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return smprintf(unknowntext);
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}
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/* extract entropy */
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fscanf(fp, "%d", &entropy);
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/* close entropy file */
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fclose(fp);
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/* return entropy */
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return smprintf("%d", entropy);
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}
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/* gid */
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char *
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gid(const char *null)
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{
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@ -319,37 +260,27 @@ gid(const char *null)
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if ((gid = getgid()) < 0) {
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fprintf(stderr, "Could no get gid.\n");
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return smprintf(unknowntext);
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} else {
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} else
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return smprintf("%d", gid);
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}
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return smprintf(unknowntext);
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}
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/* hostname */
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char *
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hostname(const char *null)
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{
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char hostname[HOST_NAME_MAX];
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FILE *fp;
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/* open hostname file */
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if (!(fp = fopen("/proc/sys/kernel/hostname", "r"))) {
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fprintf(stderr, "Could not open hostname file.\n");
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return smprintf(unknowntext);
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}
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/* extract hostname */
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fscanf(fp, "%s\n", hostname);
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/* close hostname file */
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fclose(fp);
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/* return entropy */
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return smprintf("%s", hostname);
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}
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/* ip address */
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char *
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ip(const char *interface)
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{
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@ -357,7 +288,6 @@ ip(const char *interface)
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int s;
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char host[NI_MAXHOST];
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/* check if getting ip address works */
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if (getifaddrs(&ifaddr) == -1) {
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fprintf(stderr, "Error getting IP address.\n");
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return smprintf(unknowntext);
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@ -385,46 +315,35 @@ ip(const char *interface)
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return smprintf(unknowntext);
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}
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/* load avg */
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char *
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load_avg(const char *null)
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{
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double avgs[3];
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/* try to get load avg */
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if (getloadavg(avgs, 3) < 0) {
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fprintf(stderr, "Error getting load avg.\n");
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return smprintf(unknowntext);
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}
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/* return it */
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return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
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}
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/* ram free */
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char *
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ram_free(const char *null)
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{
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long free;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.\n");
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return smprintf(unknowntext);
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}
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/* read the values */
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fscanf(fp, "MemFree: %ld kB\n", &free);
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/* close meminfo file */
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fclose(fp);
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/* return free ram as string */
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return smprintf("%f", (float)free / 1024 / 1024);
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}
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/* ram percentage */
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char *
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ram_perc(const char *null)
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{
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@ -432,81 +351,58 @@ ram_perc(const char *null)
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long total, free, buffers, cached;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.\n");
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return smprintf(unknowntext);
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}
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/* read the values */
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fscanf(fp, "MemTotal: %ld kB\n", &total);
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fscanf(fp, "MemFree: %ld kB\n", &free);
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fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
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fscanf(fp, "Cached: %ld kB\n", &cached);
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/* close meminfo file */
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fclose(fp);
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/* calculate percentage */
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perc = 100 * ((total - free) - (buffers + cached)) / total;
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/* return perc as string */
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return smprintf("%d%%", perc);
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}
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/* ram total */
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char *
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ram_total(const char *null)
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{
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long total;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.\n");
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return smprintf(unknowntext);
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}
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/* read the values */
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fscanf(fp, "MemTotal: %ld kB\n", &total);
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/* close meminfo file */
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fclose(fp);
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/* return total ram as string */
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return smprintf("%f", (float)total / 1024 / 1024);
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}
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/* ram used */
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char *
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ram_used(const char *null)
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{
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long free, total, buffers, cached, used;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.\n");
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return smprintf(unknowntext);
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}
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/* read the values */
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fscanf(fp, "MemTotal: %ld kB\n", &total);
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fscanf(fp, "MemFree: %ld kB\n", &free);
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fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
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fscanf(fp, "Cached: %ld kB\n", &cached);
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/* close meminfo file */
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fclose(fp);
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/* calculate used */
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used = total - free - buffers - cached;
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/* return used ram as string */
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return smprintf("%f", (float)used / 1024 / 1024);
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}
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/* custom shell command */
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char *
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run_command(const char* command)
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{
|
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@ -514,19 +410,13 @@ run_command(const char* command)
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FILE *fp;
|
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char buffer[64];
|
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|
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/* try to open the command output */
|
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if (!(fp = popen(command, "r"))) {
|
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fprintf(stderr, "Could not get command output for: %s.\n", command);
|
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return smprintf(unknowntext);
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}
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/* get command output text, save it to buffer */
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fgets(buffer, sizeof(buffer) - 1, fp);
|
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/* close it again */
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pclose(fp);
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|
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/* add nullchar at the end */
|
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for (int i = 0 ; i != sizeof(buffer); i++) {
|
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if (buffer[i] == '\0') {
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good = 1;
|
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@ -535,35 +425,25 @@ run_command(const char* command)
|
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}
|
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if (good)
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buffer[strlen(buffer) - 1] = '\0';
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/* return the output */
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return smprintf("%s", buffer);
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}
|
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|
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/* temperature */
|
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char *
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temp(const char *file)
|
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{
|
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int temperature;
|
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FILE *fp;
|
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|
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/* open temperature file */
|
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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;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user