diff options
Diffstat (limited to 'lib/libc/stdio/freopen.c')
| -rw-r--r-- | lib/libc/stdio/freopen.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/libc/stdio/freopen.c b/lib/libc/stdio/freopen.c index 0ff83bf96175..4dcd50fbb13d 100644 --- a/lib/libc/stdio/freopen.c +++ b/lib/libc/stdio/freopen.c @@ -97,7 +97,7 @@ freopen(const char * __restrict file, const char * __restrict mode, (dflags & (O_ACCMODE | O_EXEC)) != (oflags & O_ACCMODE)) { fclose(fp); FUNLOCKFILE(fp); - errno = EINVAL; + errno = EBADF; return (NULL); } if (fp->_flags & __SWR) @@ -151,6 +151,14 @@ freopen(const char * __restrict file, const char * __restrict mode, /* Get a new descriptor to refer to the new file. */ f = _open(file, oflags, DEFFILEMODE); + /* If out of fd's close the old one and try again. */ + if (f < 0 && isopen && wantfd > STDERR_FILENO && + (errno == ENFILE || errno == EMFILE)) { + (void) (*fp->_close)(fp->_cookie); + isopen = 0; + wantfd = -1; + f = _open(file, oflags, DEFFILEMODE); + } sverrno = errno; finish: |