diff options
Diffstat (limited to 'man2/close_range.2')
| -rw-r--r-- | man2/close_range.2 | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/man2/close_range.2 b/man2/close_range.2 index 782719de0..1df68c91d 100644 --- a/man2/close_range.2 +++ b/man2/close_range.2 @@ -207,9 +207,9 @@ result from the calls to #include <stdlib.h> #include <sys/syscall.h> #include <unistd.h> - +\& /* Show the contents of the symbolic links in /proc/self/fd */ - +\& static void show_fds(void) { @@ -217,35 +217,35 @@ show_fds(void) char path[PATH_MAX], target[PATH_MAX]; ssize_t len; struct dirent *dp; - +\& dirp = opendir("/proc/self/fd"); if (dirp == NULL) { perror("opendir"); exit(EXIT_FAILURE); } - +\& for (;;) { dp = readdir(dirp); if (dp == NULL) break; - +\& if (dp\->d_type == DT_LNK) { snprintf(path, sizeof(path), "/proc/self/fd/%s", dp\->d_name); - +\& len = readlink(path, target, sizeof(target)); printf("%s ==> %.*s\en", path, (int) len, target); } } - +\& closedir(dirp); } - +\& int main(int argc, char *argv[]) { int fd; - +\& for (size_t j = 1; j < argc; j++) { fd = open(argv[j], O_RDONLY); if (fd == \-1) { @@ -254,16 +254,16 @@ main(int argc, char *argv[]) } printf("%s opened as FD %d\en", argv[j], fd); } - +\& show_fds(); - +\& printf("========= About to call close_range() =======\en"); - +\& if (syscall(SYS_close_range, 3, \[ti]0U, 0) == \-1) { perror("close_range"); exit(EXIT_FAILURE); } - +\& show_fds(); exit(EXIT_FAILURE); } |