diff options
Diffstat (limited to 'src/stdio')
| -rw-r--r-- | src/stdio/__fdopen.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/stdio/__fdopen.c b/src/stdio/__fdopen.c index a2ca62b1..a6ae73a2 100644 --- a/src/stdio/__fdopen.c +++ b/src/stdio/__fdopen.c @@ -32,7 +32,8 @@ FILE *__fdopen(int fd, const char *mode) /* Set append mode on fd if opened for append */ if (*mode == 'a') { int flags = __syscall(SYS_fcntl, fd, F_GETFL); - __syscall(SYS_fcntl, fd, F_SETFL, flags | O_APPEND); + if (!(flags & O_APPEND)) + __syscall(SYS_fcntl, fd, F_SETFL, flags | O_APPEND); f->flags |= F_APP; } |