commit d45d8b91076b184cf6409137149a300c1146d18a
parent 15d2657f2920dd3f865dc4177a7525ec56ab5550
Author: Friedel Schön <[email protected]>
Date: Tue, 23 May 2023 11:18:05 +0200
atomize zzz
Diffstat:
1 file changed, 18 insertions(+), 17 deletions(-)
diff --git a/src/exec/zzz.c b/src/exec/zzz.c
@@ -12,8 +12,23 @@
#include <unistd.h>
+static int open_write(const char* path, const char* string) {
+ int fd;
+
+ if ((fd = open(path, O_WRONLY | O_TRUNC)) == -1) {
+ print_error("cannot open %s: %s\n", path);
+ return -1;
+ }
+ if (write(fd, string, strlen(string)) == -1) {
+ print_error("error writing to %s: %s\n", path);
+ return -1;
+ }
+ return close(fd);
+}
+
+
int main(int argc, char** argv) {
- int sys_state, sys_disk, opt;
+ int opt;
const char *new_state = "mem",
*new_disk = NULL;
@@ -83,25 +98,11 @@ int main(int argc, char** argv) {
}
if (new_disk) {
- if ((sys_disk = open("/sys/power/disk", O_WRONLY | O_TRUNC)) == -1) {
- print_error("cannot open /sys/power/disk: %s\n");
- return 1;
- }
- if (write(sys_disk, new_disk, strlen(new_disk)) == -1)
- print_error("error writing to /sys/power/disk: %s\n");
-
- close(sys_disk);
+ open_write("/sys/power/disk", new_disk);
}
if (new_state) {
- if ((sys_state = open("/sys/power/state", O_WRONLY | O_TRUNC)) == -1) {
- print_error("cannot open /sys/power/state: %s\n");
- return 1;
- }
- if (write(sys_state, new_state, strlen(new_state)) == -1)
- print_error("error writing to /sys/power/state: %s\n");
-
- close(sys_state);
+ open_write("/sys/power/state", new_state);
} else {
sleep(5);
}
