diff options
Diffstat (limited to 'support')
| -rw-r--r-- | support/Makefile | 1 | ||||
| -rw-r--r-- | support/xfreopen.c | 31 | ||||
| -rw-r--r-- | support/xstdio.h | 1 |
3 files changed, 33 insertions, 0 deletions
diff --git a/support/Makefile b/support/Makefile index a304c5cdc0..d52c472755 100644 --- a/support/Makefile +++ b/support/Makefile @@ -123,6 +123,7 @@ libsupport-routines = \ xfclose \ xfopen \ xfork \ + xfreopen \ xftruncate \ xgetline \ xgetsockname \ diff --git a/support/xfreopen.c b/support/xfreopen.c new file mode 100644 index 0000000000..e2f204cb50 --- /dev/null +++ b/support/xfreopen.c @@ -0,0 +1,31 @@ +/* freopen with error checking. + Copyright (C) 2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <support/xstdio.h> + +#include <support/check.h> +#include <stdlib.h> + +FILE * +xfreopen (const char *path, const char *mode, FILE *stream) +{ + FILE *fp = freopen (path, mode, stream); + if (fp == NULL) + FAIL_EXIT1 ("could not open %s (mode \"%s\"): %m", path, mode); + return fp; +} diff --git a/support/xstdio.h b/support/xstdio.h index 58cc7c0692..5410d42579 100644 --- a/support/xstdio.h +++ b/support/xstdio.h @@ -26,6 +26,7 @@ __BEGIN_DECLS FILE *xfopen (const char *path, const char *mode); void xfclose (FILE *); +FILE *xfreopen (const char *path, const char *mode, FILE *stream); /* Read a line from FP, using getline. *BUFFER must be NULL, or a heap-allocated pointer of *LENGTH bytes. Return the number of |