return 0;
}
+char* uid_to_name(uid_t uid) {
+ struct passwd *p;
+ char *r;
+
+ if (uid == 0)
+ return strdup("root");
+
+ p = getpwuid(uid);
+ if (p)
+ return strdup(p->pw_name);
+
+ if (asprintf(&r, "%lu", (unsigned long) uid) < 0)
+ return NULL;
+
+ return r;
+}
+
int get_group_creds(const char **groupname, gid_t *gid) {
struct group *g;
gid_t id;
}
char *strip_tab_ansi(char **ibuf, size_t *_isz) {
- const char *i, *begin;
+ const char *i, *begin = NULL;
enum {
STATE_OTHER,
STATE_ESCAPE,
return obuf;
}
+
+int on_ac_power(void) {
+ bool found_offline = false, found_online = false;
+ _cleanup_closedir_ DIR *d = NULL;
+
+ d = opendir("/sys/class/power_supply");
+ if (!d)
+ return -errno;
+
+ for (;;) {
+ struct dirent *de;
+ union dirent_storage buf;
+ _cleanup_free_ char *p = NULL;
+ _cleanup_close_ int fd = -1, device = -1;
+ char contents[6];
+ ssize_t n;
+ int k;
+
+ k = readdir_r(d, &buf.de, &de);
+ if (k != 0)
+ return -k;
+
+ if (!de)
+ break;
+
+ if (ignore_file(de->d_name))
+ continue;
+
+ device = openat(dirfd(d), de->d_name, O_DIRECTORY|O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (device < 0) {
+ if (errno == ENOENT || errno == ENOTDIR)
+ continue;
+
+ return -errno;
+ }
+
+ fd = openat(device, "type", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ n = read(fd, contents, sizeof(contents));
+ if (n < 0)
+ return -errno;
+
+ if (n != 6 || memcmp(contents, "Mains\n", 6))
+ continue;
+
+ close_nointr_nofail(fd);
+ fd = openat(device, "online", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ n = read(fd, contents, sizeof(contents));
+ if (n < 0)
+ return -errno;
+
+ if (n != 2 || contents[1] != '\n')
+ return -EIO;
+
+ if (contents[0] == '1') {
+ found_online = true;
+ break;
+ } else if (contents[0] == '0')
+ found_offline = true;
+ else
+ return -EIO;
+ }
+
+ return found_online || !found_offline;
+}