various: Put paths into defines to avoid line wraps
Long, wrapped, multi-line if statements suck to read. This fixes readability in the worst places by packing format strings for paths into defines.
This commit is contained in:
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c46c1487a9
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69b2487650
@ -10,6 +10,13 @@
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#include <stdint.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <unistd.h>
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#define POWER_SUPPLY_CAPACITY "/sys/class/power_supply/%s/capacity"
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#define POWER_SUPPLY_STATUS "/sys/class/power_supply/%s/status"
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#define POWER_SUPPLY_CHARGE "/sys/class/power_supply/%s/charge_now"
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#define POWER_SUPPLY_ENERGY "/sys/class/power_supply/%s/energy_now"
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#define POWER_SUPPLY_CURRENT "/sys/class/power_supply/%s/current"
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#define POWER_SUPPLY_POWER "/sys/class/power_supply/%s/power"
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static const char *
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static const char *
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pick(const char *bat, const char *f1, const char *f2, char *path,
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pick(const char *bat, const char *f1, const char *f2, char *path,
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size_t length)
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size_t length)
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@ -33,10 +40,8 @@
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int perc;
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int perc;
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char path[PATH_MAX];
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char path[PATH_MAX];
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if (esnprintf(path, sizeof(path),
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if (esnprintf(path, sizeof(path), POWER_SUPPLY_CAPACITY, bat) < 0)
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"/sys/class/power_supply/%s/capacity", bat) < 0) {
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return NULL;
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return NULL;
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}
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if (pscanf(path, "%d", &perc) != 1) {
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if (pscanf(path, "%d", &perc) != 1) {
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return NULL;
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return NULL;
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}
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}
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@ -59,10 +64,8 @@
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size_t i;
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size_t i;
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char path[PATH_MAX], state[12];
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char path[PATH_MAX], state[12];
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if (esnprintf(path, sizeof(path),
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if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
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"/sys/class/power_supply/%s/status", bat) < 0) {
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return NULL;
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return NULL;
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}
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if (pscanf(path, "%12[a-zA-Z ]", state) != 1) {
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if (pscanf(path, "%12[a-zA-Z ]", state) != 1) {
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return NULL;
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return NULL;
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}
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}
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@ -82,28 +85,22 @@
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double timeleft;
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double timeleft;
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char path[PATH_MAX], state[12];
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char path[PATH_MAX], state[12];
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if (esnprintf(path, sizeof(path),
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if (esnprintf(path, sizeof(path), POWER_SUPPLY_STATUS, bat) < 0)
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"/sys/class/power_supply/%s/status", bat) < 0) {
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return NULL;
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return NULL;
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}
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if (pscanf(path, "%12[a-zA-Z ]", state) != 1) {
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if (pscanf(path, "%12[a-zA-Z ]", state) != 1) {
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return NULL;
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return NULL;
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}
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}
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if (!pick(bat, "/sys/class/power_supply/%s/charge_now",
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if (!pick(bat, POWER_SUPPLY_CHARGE, POWER_SUPPLY_ENERGY, path,
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"/sys/class/power_supply/%s/energy_now", path,
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sizeof(path)) ||
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sizeof(path)) ||
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pscanf(path, "%ju", &charge_now) < 0) {
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pscanf(path, "%ju", &charge_now) < 0)
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return NULL;
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return NULL;
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}
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if (!strcmp(state, "Discharging")) {
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if (!strcmp(state, "Discharging")) {
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if (!pick(bat, "/sys/class/power_supply/%s/current_now",
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if (!pick(bat, POWER_SUPPLY_CURRENT, POWER_SUPPLY_POWER, path,
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"/sys/class/power_supply/%s/power_now", path,
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sizeof(path)) ||
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sizeof(path)) ||
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pscanf(path, "%ju", ¤t_now) < 0) {
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pscanf(path, "%ju", ¤t_now) < 0)
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return NULL;
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return NULL;
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}
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if (current_now == 0) {
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if (current_now == 0) {
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return NULL;
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return NULL;
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@ -201,6 +198,10 @@
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#elif defined(__FreeBSD__)
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#elif defined(__FreeBSD__)
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#include <sys/sysctl.h>
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#include <sys/sysctl.h>
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#define BATTERY_LIFE "hw.acpi.battery.life"
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#define BATTERY_STATE "hw.acpi.battery.state"
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#define BATTERY_TIME "hw.acpi.battery.time"
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const char *
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const char *
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battery_perc(const char *unused)
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battery_perc(const char *unused)
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{
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{
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@ -208,8 +209,7 @@
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size_t len;
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size_t len;
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len = sizeof(cap);
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len = sizeof(cap);
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if (sysctlbyname("hw.acpi.battery.life", &cap, &len, NULL, 0) == -1
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if (sysctlbyname(BATTERY_LIFE, &cap, &len, NULL, 0) < 0 || !len)
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|| !len)
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return NULL;
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return NULL;
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return bprintf("%d", cap);
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return bprintf("%d", cap);
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@ -222,8 +222,7 @@
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size_t len;
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size_t len;
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len = sizeof(state);
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len = sizeof(state);
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if (sysctlbyname("hw.acpi.battery.state", &state, &len, NULL, 0) == -1
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if (sysctlbyname(BATTERY_STATE, &state, &len, NULL, 0) < 0 || !len)
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|| !len)
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return NULL;
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return NULL;
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switch(state) {
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switch(state) {
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@ -244,9 +243,8 @@
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size_t len;
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size_t len;
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len = sizeof(rem);
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len = sizeof(rem);
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if (sysctlbyname("hw.acpi.battery.time", &rem, &len, NULL, 0) == -1
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if (sysctlbyname(BATTERY_TIME, &rem, &len, NULL, 0) < 0 || !len
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|| !len
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|| rem < 0)
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|| rem == -1)
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return NULL;
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return NULL;
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return bprintf("%uh %02um", rem / 60, rem % 60);
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return bprintf("%uh %02um", rem / 60, rem % 60);
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@ -7,16 +7,16 @@
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#include "../slstatus.h"
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#include "../slstatus.h"
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#if defined(__linux__)
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#if defined(__linux__)
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#define CPU_FREQ "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"
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const char *
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const char *
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cpu_freq(const char *unused)
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cpu_freq(const char *unused)
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{
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{
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uintmax_t freq;
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uintmax_t freq;
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/* in kHz */
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/* in kHz */
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if (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/"
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if (pscanf(CPU_FREQ, "%ju", &freq) != 1)
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"scaling_cur_freq", "%ju", &freq) != 1) {
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return NULL;
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return NULL;
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}
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return fmt_human(freq * 1000, 1000);
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return fmt_human(freq * 1000, 1000);
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}
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}
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@ -6,15 +6,15 @@
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#include "../util.h"
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#include "../util.h"
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#define ENTROPY_AVAIL "/proc/sys/kernel/random/entropy_avail"
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const char *
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const char *
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entropy(const char *unused)
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entropy(const char *unused)
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{
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{
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uintmax_t num;
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uintmax_t num;
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if (pscanf("/proc/sys/kernel/random/entropy_avail", "%ju", &num)
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if (pscanf(ENTROPY_AVAIL, "%ju", &num) != 1)
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!= 1) {
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return NULL;
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return NULL;
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}
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return bprintf("%ju", num);
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return bprintf("%ju", num);
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}
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}
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@ -8,6 +8,9 @@
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#if defined(__linux__)
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#if defined(__linux__)
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#include <stdint.h>
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#include <stdint.h>
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#define NET_RX_BYTES "/sys/class/net/%s/statistics/rx_bytes"
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#define NET_TX_BYTES "/sys/class/net/%s/statistics/tx_bytes"
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const char *
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const char *
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netspeed_rx(const char *interface)
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netspeed_rx(const char *interface)
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{
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{
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@ -18,11 +21,8 @@
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oldrxbytes = rxbytes;
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oldrxbytes = rxbytes;
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if (esnprintf(path, sizeof(path),
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if (esnprintf(path, sizeof(path), NET_RX_BYTES, interface) < 0)
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"/sys/class/net/%s/statistics/rx_bytes",
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interface) < 0) {
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return NULL;
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return NULL;
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}
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if (pscanf(path, "%ju", &rxbytes) != 1) {
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if (pscanf(path, "%ju", &rxbytes) != 1) {
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return NULL;
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return NULL;
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}
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}
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@ -44,11 +44,8 @@
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oldtxbytes = txbytes;
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oldtxbytes = txbytes;
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if (esnprintf(path, sizeof(path),
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if (esnprintf(path, sizeof(path), NET_TX_BYTES, interface) < 0)
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"/sys/class/net/%s/statistics/tx_bytes",
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interface) < 0) {
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return NULL;
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return NULL;
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}
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if (pscanf(path, "%ju", &txbytes) != 1) {
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if (pscanf(path, "%ju", &txbytes) != 1) {
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return NULL;
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return NULL;
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}
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}
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@ -18,6 +18,8 @@
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#include <limits.h>
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#include <limits.h>
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#include <linux/wireless.h>
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#include <linux/wireless.h>
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#define NET_OPERSTATE "/sys/class/net/%s/operstate"
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const char *
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const char *
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wifi_perc(const char *interface)
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wifi_perc(const char *interface)
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{
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{
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@ -28,10 +30,8 @@
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char status[5];
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char status[5];
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FILE *fp;
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FILE *fp;
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if (esnprintf(path, sizeof(path), "/sys/class/net/%s/operstate",
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if (esnprintf(path, sizeof(path), NET_OPERSTATE, interface) < 0)
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interface) < 0) {
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return NULL;
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return NULL;
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}
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if (!(fp = fopen(path, "r"))) {
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if (!(fp = fopen(path, "r"))) {
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warn("fopen '%s':", path);
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warn("fopen '%s':", path);
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return NULL;
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return NULL;
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