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added entropy

This commit is contained in:
Aaron Marcher 2016-06-03 13:04:15 +02:00 committed by Aaron Marcher (drkhsh)
parent bf2cdd102e
commit 5a943fa59c
3 changed files with 26 additions and 0 deletions

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@ -16,6 +16,7 @@ static unsigned int update_interval = 1;
- cpu_perc (cpu usage in percent) [argument: NULL] - cpu_perc (cpu usage in percent) [argument: NULL]
- datetime (date and time) [argument: format] - datetime (date and time) [argument: format]
- disk_perc (disk usage in percent) [argument: mountpoint] - disk_perc (disk usage in percent) [argument: mountpoint]
- entropy (available entropy) [argument: NULL]
- ram_perc (ram usage in percent) [argument: NULL] - ram_perc (ram usage in percent) [argument: NULL]
- temp (temperature in degrees) [argument: temperature file] - temp (temperature in degrees) [argument: temperature file]
- vol_perc (alsa volume and mute status in percent) [argument: soundcard] - vol_perc (alsa volume and mute status in percent) [argument: soundcard]
@ -29,5 +30,6 @@ static const struct arg args[] = {
{ ram_perc, "ram %3s | ", NULL }, { ram_perc, "ram %3s | ", NULL },
{ vol_perc, "vol %4s | ", "default" }, { vol_perc, "vol %4s | ", "default" },
{ disk_perc, "ssd %3s | ", "/" }, { disk_perc, "ssd %3s | ", "/" },
{ entropy, "crypt %s | ", NULL },
{ datetime, "%s", "%y-%m-%d %H:%M:%S" }, { datetime, "%s", "%y-%m-%d %H:%M:%S" },
}; };

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@ -181,6 +181,29 @@ disk_perc(const char *mountpoint)
return smprintf("%d%%", perc); return smprintf("%d%%", perc);
} }
/* 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("n/a");
}
/* extract entropy */
fscanf(fp, "%d", &entropy);
/* close entropy file */
fclose(fp);
/* return entropy */
return smprintf("%d", entropy);
}
/* ram percentage */ /* ram percentage */
char * char *
ram_perc(const char *null) ram_perc(const char *null)

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@ -18,6 +18,7 @@ char *battery_perc(const char *);
char *cpu_perc(const char *); char *cpu_perc(const char *);
char *datetime(const char *); char *datetime(const char *);
char *disk_perc(const char *); char *disk_perc(const char *);
char *entropy(const char*);
char *ram_perc(const char *); char *ram_perc(const char *);
char *temp(const char *); char *temp(const char *);
char *vol_perc(const char *); char *vol_perc(const char *);