diff options
Diffstat (limited to 'libio/freopen.c')
| -rw-r--r-- | libio/freopen.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/libio/freopen.c b/libio/freopen.c index 162e835956..4e92df17b4 100644 --- a/libio/freopen.c +++ b/libio/freopen.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1993,95,96,97,98,2000 Free Software Foundation, Inc. +/* Copyright (C) 1993,95,96,97,98,2000,2001 Free Software Foundation, Inc. This file is part of the GNU IO Library. This library is free software; you can redistribute it and/or @@ -27,6 +27,7 @@ #include "stdio.h" #include <shlib-compat.h> +#include <fd_to_filename.h> FILE* freopen (filename, mode, fp) @@ -35,11 +36,18 @@ freopen (filename, mode, fp) FILE* fp; { FILE *result; + int fd = -1; CHECK_FILE (fp, NULL); if (!(fp->_flags & _IO_IS_FILEBUF)) return NULL; _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp); _IO_flockfile (fp); + if (filename == NULL && _IO_fileno (fp) >= 0) + { + fd = dup (_IO_fileno (fp)); + if (fd != -1) + filename = fd_to_filename (fd); + } #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) if (&_IO_stdin_used == NULL) /* If the shared C library is used by the application binary which @@ -54,6 +62,12 @@ freopen (filename, mode, fp) if (result != NULL) /* unbound stream orientation */ result->_mode = 0; + if (fd != -1) + { + close (fd); + if (filename != NULL) + free ((char *) filename); + } _IO_funlockfile (fp); _IO_cleanup_region_end (0); return result; |