use a static buffer instead of dynamic memory
This commit is contained in:
Aaron Marcher
parent
abbaa7af44
commit
597cdc6b5c
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@ -6,6 +6,9 @@
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/* text to show if no value can be retrieved */
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#define UNKNOWN_STR "n/a"
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/* maximum output string length */
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#define MAXLEN 2048
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/* statusbar
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- battery_perc (battery percentage) [argument: battery name]
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- battery_power (battery power usage) [argument: battery name]
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447
slstatus.c
447
slstatus.c
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@ -28,45 +28,45 @@
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#include "arg.h"
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struct arg {
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char *(*func)();
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const char *(*func)();
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const char *fmt;
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const char *args;
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};
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static char *smprintf(const char *fmt, ...);
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static char *battery_perc(const char *bat);
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static char *battery_power(const char *bat);
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static char *battery_state(const char *bat);
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static char *cpu_freq(void);
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static char *cpu_perc(void);
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static char *datetime(const char *fmt);
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static char *disk_free(const char *mnt);
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static char *disk_perc(const char *mnt);
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static char *disk_total(const char *mnt);
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static char *disk_used(const char *mnt);
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static char *entropy(void);
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static char *gid(void);
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static char *hostname(void);
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static char *ip(const char *iface);
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static char *kernel_release(void);
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static char *keyboard_indicators(void);
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static char *load_avg(void);
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static char *ram_free(void);
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static char *ram_perc(void);
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static char *ram_used(void);
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static char *ram_total(void);
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static char *run_command(const char *cmd);
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static char *swap_free(void);
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static char *swap_perc(void);
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static char *swap_used(void);
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static char *swap_total(void);
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static char *temp(const char *file);
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static char *uid(void);
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static char *uptime(void);
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static char *username(void);
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static char *vol_perc(const char *card);
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static char *wifi_perc(const char *iface);
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static char *wifi_essid(const char *iface);
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static const char *bprintf(const char *fmt, ...);
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static const char *battery_perc(const char *bat);
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static const char *battery_power(const char *bat);
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static const char *battery_state(const char *bat);
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static const char *cpu_freq(void);
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static const char *cpu_perc(void);
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static const char *datetime(const char *fmt);
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static const char *disk_free(const char *mnt);
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static const char *disk_perc(const char *mnt);
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static const char *disk_total(const char *mnt);
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static const char *disk_used(const char *mnt);
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static const char *entropy(void);
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static const char *gid(void);
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static const char *hostname(void);
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static const char *ip(const char *iface);
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static const char *kernel_release(void);
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static const char *keyboard_indicators(void);
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static const char *load_avg(void);
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static const char *ram_free(void);
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static const char *ram_perc(void);
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static const char *ram_used(void);
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static const char *ram_total(void);
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static const char *run_command(const char *cmd);
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static const char *swap_free(void);
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static const char *swap_perc(void);
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static const char *swap_used(void);
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static const char *swap_total(void);
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static const char *temp(const char *file);
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static const char *uid(void);
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static const char *uptime(void);
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static const char *username(void);
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static const char *vol_perc(const char *card);
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static const char *wifi_perc(const char *iface);
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static const char *wifi_essid(const char *iface);
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static void sighandler(const int signo);
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static void usage(const int eval);
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@ -78,30 +78,25 @@ static Display *dpy;
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#include "config.h"
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static char *
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smprintf(const char *fmt, ...)
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static char buf[MAXLEN];
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static const char *
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bprintf(const char *fmt, ...)
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{
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va_list ap;
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char *ret;
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int len;
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size_t len;
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va_start(ap, fmt);
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len = vsnprintf(NULL, 0, fmt, ap);
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len = vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
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va_end(ap);
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ret = malloc(++len);
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if (ret == NULL) {
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err(1, "malloc");
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if (len >= sizeof(buf))
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buf[sizeof(buf)-1] = '\0';
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return buf;
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}
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va_start(ap, fmt);
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vsnprintf(ret, len, fmt, ap);
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va_end(ap);
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return ret;
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}
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static char *
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static const char *
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battery_perc(const char *bat)
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{
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int perc;
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@ -112,15 +107,15 @@ battery_perc(const char *bat)
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fp = fopen(path, "r");
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if (fp == NULL) {
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warn("Failed to open file %s", path);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%i", &perc);
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fclose(fp);
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return smprintf("%d", perc);
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return bprintf("%d", perc);
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}
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static char *
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static const char *
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battery_power(const char *bat)
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{
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char path[PATH_MAX];
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@ -131,15 +126,15 @@ battery_power(const char *bat)
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fp = fopen(path, "r");
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if (fp == NULL) {
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warn("Failed to open file %s", path);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%i", &watts);
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fclose(fp);
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return smprintf("%d", (watts + 500000) / 1000000);
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return bprintf("%d", (watts + 500000) / 1000000);
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}
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static char *
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static const char *
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battery_state(const char *bat)
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{
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char path[PATH_MAX];
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@ -150,25 +145,25 @@ battery_state(const char *bat)
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fp = fopen(path, "r");
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if (fp == NULL) {
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warn("Failed to open file %s", path);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%12s", state);
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fclose(fp);
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if (strcmp(state, "Charging") == 0) {
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return smprintf("+");
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return "+";
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} else if (strcmp(state, "Discharging") == 0) {
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return smprintf("-");
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return "-";
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} else if (strcmp(state, "Full") == 0) {
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return smprintf("=");
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return "=";
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} else if (strcmp(state, "Unknown") == 0) {
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return smprintf("/");
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return "/";
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} else {
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return smprintf("?");
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return "?";
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}
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}
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static char *
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static const char *
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cpu_freq(void)
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{
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int freq;
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@ -177,15 +172,15 @@ cpu_freq(void)
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fp = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", "r");
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if (fp == NULL) {
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warn("Failed to open file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%i", &freq);
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fclose(fp);
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return smprintf("%d", (freq + 500) / 1000);
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return bprintf("%d", (freq + 500) / 1000);
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}
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static char *
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static const char *
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cpu_perc(void)
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{
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int perc;
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@ -195,7 +190,7 @@ cpu_perc(void)
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fp = fopen("/proc/stat", "r");
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if (fp == NULL) {
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warn("Failed to open file /proc/stat");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
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fclose(fp);
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@ -206,43 +201,41 @@ cpu_perc(void)
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fp = fopen("/proc/stat", "r");
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if (fp == NULL) {
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warn("Failed to open file /proc/stat");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
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fclose(fp);
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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 smprintf("%d", perc);
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return bprintf("%d", perc);
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}
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static char *
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static const char *
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datetime(const char *fmt)
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{
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time_t t;
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char str[80];
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t = time(NULL);
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if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
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return smprintf("%s", UNKNOWN_STR);
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if (strftime(buf, sizeof(buf), fmt, localtime(&t)) == 0)
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return UNKNOWN_STR;
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return buf;
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}
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return smprintf("%s", str);
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}
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static char *
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static const char *
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disk_free(const char *mnt)
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{
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struct statvfs fs;
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if (statvfs(mnt, &fs) < 0) {
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warn("Failed to get filesystem info");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
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return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
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}
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static char *
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static const char *
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disk_perc(const char *mnt)
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{
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int perc;
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@ -250,41 +243,41 @@ disk_perc(const char *mnt)
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if (statvfs(mnt, &fs) < 0) {
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warn("Failed to get filesystem info");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
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return smprintf("%d", perc);
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return bprintf("%d", perc);
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}
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static char *
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static const char *
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disk_total(const char *mnt)
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{
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struct statvfs fs;
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if (statvfs(mnt, &fs) < 0) {
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warn("Failed to get filesystem info");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
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return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
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}
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static char *
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static const char *
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disk_used(const char *mnt)
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{
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struct statvfs fs;
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if (statvfs(mnt, &fs) < 0) {
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warn("Failed to get filesystem info");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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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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return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
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}
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static char *
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static const char *
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entropy(void)
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{
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int num;
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@ -293,34 +286,32 @@ entropy(void)
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fp= fopen("/proc/sys/kernel/random/entropy_avail", "r");
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if (fp == NULL) {
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warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "%d", &num);
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fclose(fp);
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return smprintf("%d", num);
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return bprintf("%d", num);
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}
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static char *
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static const char *
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gid(void)
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{
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return smprintf("%d", getgid());
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return bprintf("%d", getgid());
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}
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static char *
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static const char *
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hostname(void)
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{
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char buf[HOST_NAME_MAX];
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if (gethostname(buf, sizeof(buf)) == -1) {
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warn("hostname");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%s", buf);
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return buf;
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}
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static char *
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static const char *
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ip(const char *iface)
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{
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struct ifaddrs *ifaddr, *ifa;
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@ -329,7 +320,7 @@ ip(const char *iface)
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if (getifaddrs(&ifaddr) == -1) {
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warn("Failed to get IP address for interface %s", iface);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
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@ -340,30 +331,30 @@ ip(const char *iface)
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if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
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if (s != 0) {
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warnx("Failed to get IP address for interface %s", iface);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%s", host);
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return bprintf("%s", host);
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}
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}
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freeifaddrs(ifaddr);
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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static char *
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static const char *
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kernel_release(void)
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{
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struct utsname udata;
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if (uname(&udata) < 0) {
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return smprintf(UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%s", udata.release);
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return bprintf("%s", udata.release);
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}
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static char *
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static const char *
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keyboard_indicators(void)
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{
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Display *dpy = XOpenDisplay(NULL);
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@ -373,33 +364,30 @@ keyboard_indicators(void)
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switch (state.led_mask) {
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case 1:
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return smprintf("c");
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break;
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return "c";
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case 2:
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return smprintf("n");
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break;
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return "n";
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case 3:
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return smprintf("cn");
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break;
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return "cn";
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default:
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return smprintf("");
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return "";
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}
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}
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static char *
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static const char *
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load_avg(void)
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{
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double avgs[3];
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if (getloadavg(avgs, 3) < 0) {
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warnx("Failed to get the load avg");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
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return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
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}
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static char *
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static const char *
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ram_free(void)
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{
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long free;
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@ -408,15 +396,15 @@ ram_free(void)
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fp = fopen("/proc/meminfo", "r");
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if (fp == NULL) {
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warn("Failed to open file /proc/meminfo");
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return smprintf("%s", UNKNOWN_STR);
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return UNKNOWN_STR;
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}
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fscanf(fp, "MemFree: %ld kB\n", &free);
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fclose(fp);
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return smprintf("%f", (float)free / 1024 / 1024);
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return bprintf("%f", (float)free / 1024 / 1024);
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}
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static char *
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static const char *
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ram_perc(void)
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{
|
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long total, free, buffers, cached;
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|
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@ -425,7 +413,7 @@ ram_perc(void)
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fp = fopen("/proc/meminfo", "r");
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if (fp == NULL) {
|
||||
warn("Failed to open file /proc/meminfo");
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fscanf(fp, "MemTotal: %ld kB\n", &total);
|
||||
fscanf(fp, "MemFree: %ld kB\n", &free);
|
||||
|
|
@ -433,10 +421,10 @@ ram_perc(void)
|
|||
fscanf(fp, "Cached: %ld kB\n", &cached);
|
||||
fclose(fp);
|
||||
|
||||
return smprintf("%d", 100 * ((total - free) - (buffers + cached)) / total);
|
||||
return bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
ram_total(void)
|
||||
{
|
||||
long total;
|
||||
|
|
@ -445,15 +433,15 @@ ram_total(void)
|
|||
fp = fopen("/proc/meminfo", "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to open file /proc/meminfo");
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fscanf(fp, "MemTotal: %ld kB\n", &total);
|
||||
fclose(fp);
|
||||
|
||||
return smprintf("%f", (float)total / 1024 / 1024);
|
||||
return bprintf("%f", (float)total / 1024 / 1024);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
ram_used(void)
|
||||
{
|
||||
long free, total, buffers, cached;
|
||||
|
|
@ -462,7 +450,7 @@ ram_used(void)
|
|||
fp = fopen("/proc/meminfo", "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to open file /proc/meminfo");
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fscanf(fp, "MemTotal: %ld kB\n", &total);
|
||||
fscanf(fp, "MemFree: %ld kB\n", &free);
|
||||
|
|
@ -470,184 +458,159 @@ ram_used(void)
|
|||
fscanf(fp, "Cached: %ld kB\n", &cached);
|
||||
fclose(fp);
|
||||
|
||||
return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
|
||||
return bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
run_command(const char *cmd)
|
||||
{
|
||||
char *nlptr;
|
||||
FILE *fp;
|
||||
char buf[1024] = UNKNOWN_STR;
|
||||
|
||||
fp = popen(cmd, "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to get command output for %s", cmd);
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fgets(buf, sizeof(buf), fp);
|
||||
fgets(buf, sizeof(buf) - 1, fp);
|
||||
pclose(fp);
|
||||
buf[sizeof(buf) - 1] = '\0';
|
||||
|
||||
if ((nlptr = strrchr(buf, '\n')) != NULL) {
|
||||
if ((nlptr = strrchr(buf, '\n')) != NULL)
|
||||
nlptr[0] = '\0';
|
||||
|
||||
return buf[0] ? buf : UNKNOWN_STR;
|
||||
}
|
||||
|
||||
return smprintf("%s", buf);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const 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("%s", 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 smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
buf[bytes_read] = '\0';
|
||||
fclose(fp);
|
||||
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapTotal: %ld kB\n", &total);
|
||||
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapFree: %ld kB\n", &free);
|
||||
|
||||
return smprintf("%f", (float)free / 1024 / 1024);
|
||||
return bprintf("%f", (float)free / 1024 / 1024);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
swap_perc(void)
|
||||
{
|
||||
long total, free, cached;
|
||||
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("%s", 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 smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
buf[bytes_read] = '\0';
|
||||
fclose(fp);
|
||||
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapTotal: %ld kB\n", &total);
|
||||
|
||||
if ((match = strstr(buf, "SwapCached")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapCached")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapCached: %ld kB\n", &cached);
|
||||
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapFree: %ld kB\n", &free);
|
||||
|
||||
return smprintf("%d", 100 * (total - free - cached) / total);
|
||||
return bprintf("%d", 100 * (total - free - cached) / total);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
swap_total(void)
|
||||
{
|
||||
long total;
|
||||
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("%s", 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 smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
buf[bytes_read] = '\0';
|
||||
fclose(fp);
|
||||
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapTotal: %ld kB\n", &total);
|
||||
|
||||
return smprintf("%f", (float)total / 1024 / 1024);
|
||||
return bprintf("%f", (float)total / 1024 / 1024);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
swap_used(void)
|
||||
{
|
||||
long total, free, cached;
|
||||
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("%s", 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 smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
buf[bytes_read] = '\0';
|
||||
fclose(fp);
|
||||
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapTotal")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapTotal: %ld kB\n", &total);
|
||||
|
||||
if ((match = strstr(buf, "SwapCached")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapCached")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapCached: %ld kB\n", &cached);
|
||||
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((match = strstr(buf, "SwapFree")) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
sscanf(match, "SwapFree: %ld kB\n", &free);
|
||||
|
||||
return smprintf("%f", (float)(total - free - cached) / 1024 / 1024);
|
||||
return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
temp(const char *file)
|
||||
{
|
||||
int temp;
|
||||
|
|
@ -656,15 +619,15 @@ temp(const char *file)
|
|||
fp = fopen(file, "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to open file %s", file);
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fscanf(fp, "%d", &temp);
|
||||
fclose(fp);
|
||||
|
||||
return smprintf("%d", temp / 1000);
|
||||
return bprintf("%d", temp / 1000);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
uptime(void)
|
||||
{
|
||||
struct sysinfo info;
|
||||
|
|
@ -675,30 +638,30 @@ uptime(void)
|
|||
h = info.uptime / 3600;
|
||||
m = (info.uptime - h * 3600 ) / 60;
|
||||
|
||||
return smprintf("%dh %dm", h, m);
|
||||
return bprintf("%dh %dm", h, m);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
username(void)
|
||||
{
|
||||
struct passwd *pw = getpwuid(geteuid());
|
||||
|
||||
if (pw == NULL) {
|
||||
warn("Failed to get username");
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
return smprintf("%s", pw->pw_name);
|
||||
return bprintf("%s", pw->pw_name);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
uid(void)
|
||||
{
|
||||
return smprintf("%d", geteuid());
|
||||
return bprintf("%d", geteuid());
|
||||
}
|
||||
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
vol_perc(const char *card)
|
||||
{
|
||||
unsigned int i;
|
||||
|
|
@ -708,34 +671,33 @@ vol_perc(const char *card)
|
|||
afd = open(card, O_RDONLY | O_NONBLOCK);
|
||||
if (afd == -1) {
|
||||
warn("Cannot open %s", card);
|
||||
return smprintf(UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
|
||||
warn("Cannot get volume for %s", card);
|
||||
close(afd);
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) {
|
||||
if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
|
||||
if (ioctl(afd, MIXER_READ(i), &v) == -1) {
|
||||
warn("vol_perc: ioctl");
|
||||
close(afd);
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
close(afd);
|
||||
|
||||
return smprintf("%d", v & 0xff);
|
||||
return bprintf("%d", v & 0xff);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
wifi_perc(const char *iface)
|
||||
{
|
||||
int perc;
|
||||
char buf[255];
|
||||
char *datastart;
|
||||
char path[PATH_MAX];
|
||||
char status[5];
|
||||
|
|
@ -745,38 +707,38 @@ wifi_perc(const char *iface)
|
|||
fp = fopen(path, "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to open file %s", path);
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
fgets(status, 5, fp);
|
||||
fclose(fp);
|
||||
if(strcmp(status, "up\n") != 0) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
fp = fopen("/proc/net/wireless", "r");
|
||||
if (fp == NULL) {
|
||||
warn("Failed to open file /proc/net/wireless");
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
fgets(buf, sizeof(buf), fp);
|
||||
fgets(buf, sizeof(buf), fp);
|
||||
fgets(buf, sizeof(buf), fp);
|
||||
fgets(buf, sizeof(buf) - 1, fp);
|
||||
fgets(buf, sizeof(buf) - 1, fp);
|
||||
fgets(buf, sizeof(buf) - 1, fp);
|
||||
fclose(fp);
|
||||
|
||||
if ((datastart = strstr(buf, iface)) == NULL) {
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
}
|
||||
if ((datastart = strstr(buf, iface)) == NULL)
|
||||
return UNKNOWN_STR;
|
||||
|
||||
datastart = (datastart+(strlen(iface)+1));
|
||||
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
|
||||
|
||||
return smprintf("%d", perc);
|
||||
return bprintf("%d", perc);
|
||||
}
|
||||
|
||||
static char *
|
||||
static const char *
|
||||
wifi_essid(const char *iface)
|
||||
{
|
||||
char id[IW_ESSID_MAX_SIZE+1];
|
||||
static char id[IW_ESSID_MAX_SIZE+1];
|
||||
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
|
||||
struct iwreq wreq;
|
||||
|
||||
|
|
@ -786,20 +748,20 @@ wifi_essid(const char *iface)
|
|||
|
||||
if (sockfd == -1) {
|
||||
warn("Failed to get ESSID for interface %s", iface);
|
||||
return smprintf("%s", 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 smprintf("%s", UNKNOWN_STR);
|
||||
return UNKNOWN_STR;
|
||||
}
|
||||
|
||||
close(sockfd);
|
||||
|
||||
if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
|
||||
return smprintf("%s", UNKNOWN_STR);
|
||||
if (strcmp(id, "") == 0)
|
||||
return UNKNOWN_STR;
|
||||
else
|
||||
return smprintf("%s", (char *)wreq.u.essid.pointer);
|
||||
return id;
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -821,10 +783,11 @@ int
|
|||
main(int argc, char *argv[])
|
||||
{
|
||||
unsigned short int i;
|
||||
char status_string[2048];
|
||||
char *res, *element;
|
||||
char status_string[MAXLEN];
|
||||
char *element;
|
||||
struct arg argument;
|
||||
struct sigaction act;
|
||||
size_t len;
|
||||
|
||||
ARGBEGIN {
|
||||
case 'd':
|
||||
|
|
@ -866,21 +829,17 @@ main(int argc, char *argv[])
|
|||
while (!done) {
|
||||
status_string[0] = '\0';
|
||||
|
||||
for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
|
||||
for (element = status_string, i = len = 0;
|
||||
i < sizeof(args) / sizeof(args[0]);
|
||||
++i, element += len) {
|
||||
argument = args[i];
|
||||
if (argument.args == NULL) {
|
||||
res = argument.func();
|
||||
} else {
|
||||
res = argument.func(argument.args);
|
||||
len = snprintf(element, sizeof(status_string)-1 - len,
|
||||
argument.fmt,
|
||||
argument.func(argument.args));
|
||||
if (len >= sizeof(status_string)) {
|
||||
status_string[sizeof(status_string)-1] = '\0';
|
||||
break;
|
||||
}
|
||||
element = smprintf(argument.fmt, res);
|
||||
if (element == NULL) {
|
||||
element = smprintf("%s", UNKNOWN_STR);
|
||||
warnx("Failed to format output");
|
||||
}
|
||||
strncat(status_string, element, sizeof(status_string) - strlen(status_string) - 1);
|
||||
free(res);
|
||||
free(element);
|
||||
}
|
||||
|
||||
if (oflag) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue