diff options
Diffstat (limited to 'lib/libc/stdio/freopen.c')
| -rw-r--r-- | lib/libc/stdio/freopen.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/stdio/freopen.c b/lib/libc/stdio/freopen.c index be7bc8a..8d1ec91 100644 --- a/lib/libc/stdio/freopen.c +++ b/lib/libc/stdio/freopen.c @@ -118,6 +118,8 @@ freopen(file, mode, fp) (void) ftruncate(fp->_file, (off_t)0); if (!(oflags & O_APPEND)) (void) _sseek(fp, (fpos_t)0, SEEK_SET); + if (oflags & O_CLOEXEC) + (void) _fcntl(fp->_file, F_SETFD, FD_CLOEXEC); f = fp->_file; isopen = 0; wantfd = -1; @@ -194,7 +196,8 @@ finish: * assume stderr is always fd STDERR_FILENO, even if being freopen'd. */ if (wantfd >= 0) { - if (_dup2(f, wantfd) >= 0) { + if ((oflags & O_CLOEXEC ? _fcntl(f, F_DUP2FD_CLOEXEC, wantfd) : + _dup2(f, wantfd)) >= 0) { (void)_close(f); f = wantfd; } else |
