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| author | Ulrich Drepper <drepper@redhat.com> | 2004-09-25 05:30:41 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-09-25 05:30:41 +0000 |
| commit | 267a7a9eca77719b9cee482585d04ad515a4436d (patch) | |
| tree | b38cb2e73cf79014b8dc790a2884159b64e3bf06 /misc/daemon.c | |
| parent | 5fa3cee8e9d0e2a2222ba760b538a6583ccb983c (diff) | |
| download | glibc-267a7a9eca77719b9cee482585d04ad515a4436d.zip glibc-267a7a9eca77719b9cee482585d04ad515a4436d.tar.gz glibc-267a7a9eca77719b9cee482585d04ad515a4436d.tar.bz2 | |
(daemon): Define errno in case /dev/null is not the correct device.
Diffstat (limited to 'misc/daemon.c')
| -rw-r--r-- | misc/daemon.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/misc/daemon.c b/misc/daemon.c index bc93956..775ef1a 100644 --- a/misc/daemon.c +++ b/misc/daemon.c @@ -65,17 +65,26 @@ daemon(nochdir, noclose) && (fd = open_not_cancel(_PATH_DEVNULL, O_RDWR, 0)) != -1) { struct stat64 st; - if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &st), 0) == 0 - && __builtin_expect (S_ISCHR (st.st_mode), 1) != 0 + if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &st), 0) == 0) + { + if (__builtin_expect (S_ISCHR (st.st_mode), 1) != 0 #if defined DEV_NULL_MAJOR && defined DEV_NULL_MINOR - && st.st_rdev == makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR) + && (st.st_rdev + == makedev (DEV_NULL_MAJOR, DEV_NULL_MINOR)) #endif - ) { - (void)__dup2(fd, STDIN_FILENO); - (void)__dup2(fd, STDOUT_FILENO); - (void)__dup2(fd, STDERR_FILENO); - if (fd > 2) - (void)__close (fd); + ) { + (void)__dup2(fd, STDIN_FILENO); + (void)__dup2(fd, STDOUT_FILENO); + (void)__dup2(fd, STDERR_FILENO); + if (fd > 2) + (void)__close (fd); + } else { + /* We must set an errno value since no + function call actually failed. */ + close_not_cancel_no_status (fd); + __set_errno (ENODEV); + return -1; + } } else { close_not_cancel_no_status (fd); return -1; |