-
-static int close_fds(int except[], unsigned n_except) {
- DIR *d;
- struct dirent *de;
- int r = 0;
-
- /* Modifies the fds array! (sorts it) */
-
- if (!(d = opendir("/proc/self/fd")))
- return -errno;
-
- while ((de = readdir(d))) {
- int fd;
-
- if (de->d_name[0] == '.')
- continue;
-
- if ((r = safe_atoi(de->d_name, &fd)) < 0)
- goto finish;
-
- if (fd < 3)
- continue;
-
- if (fd == dirfd(d))
- continue;
-
- if (except) {
- bool found;
- unsigned i;
-
- found = false;
- for (i = 0; i < n_except; i++)
- if (except[i] == fd) {
- found = true;
- break;
- }
-
- if (found)
- continue;
- }
-
- if ((r = close_nointr(fd)) < 0)
- goto finish;
- }
-
-finish:
- closedir(d);
- return r;
-}