diff options
Diffstat (limited to 'libio/iofdopen.c')
| -rw-r--r-- | libio/iofdopen.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libio/iofdopen.c b/libio/iofdopen.c index 3f266f7..843a4fa 100644 --- a/libio/iofdopen.c +++ b/libio/iofdopen.c @@ -167,6 +167,15 @@ _IO_new_fdopen (fd, mode) _IO_mask_flags (&new_f->fp.file, read_write, _IO_NO_READS+_IO_NO_WRITES+_IO_IS_APPENDING); + /* For append mode, set the file offset to the end of the file. Don't + update the offset cache though, since the file handle is not active. */ + if ((read_write & (_IO_IS_APPENDING | _IO_NO_READS)) + == (_IO_IS_APPENDING | _IO_NO_READS)) + { + _IO_off64_t new_pos = _IO_SYSSEEK (&new_f->fp.file, 0, _IO_seek_end); + if (new_pos == _IO_pos_BAD && errno != ESPIPE) + return NULL; + } return &new_f->fp.file; } libc_hidden_ver (_IO_new_fdopen, _IO_fdopen) |