From fe709cc24578ecfd2ff5b07e10e3829fcb55075b Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Fri, 5 Sep 2025 11:53:31 +0100 Subject: [PATCH] support: Implement 'xfmemopen' for seamless 'fmemopen' use Add 'xfmemopen' wrapper for seamless 'fmemopen' use in tests, following 'xfopen', 'xfclose', etc., and providing a standardized error reporting facility. Reviewed-by: Florian Weimer --- support/Makefile | 1 + support/xfmemopen.c | 31 +++++++++++++++++++++++++++++++ support/xstdio.h | 1 + 3 files changed, 33 insertions(+) create mode 100644 support/xfmemopen.c diff --git a/support/Makefile b/support/Makefile index d41278eeab..f67f38130a 100644 --- a/support/Makefile +++ b/support/Makefile @@ -134,6 +134,7 @@ libsupport-routines = \ xfclose \ xfdopendir \ xfgets \ + xfmemopen \ xfopen \ xfork \ xfread \ diff --git a/support/xfmemopen.c b/support/xfmemopen.c new file mode 100644 index 0000000000..f1dbc72c67 --- /dev/null +++ b/support/xfmemopen.c @@ -0,0 +1,31 @@ +/* fmemopen with error checking. + Copyright (C) 2025 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 + . */ + +#include + +#include +#include + +FILE * +xfmemopen (void *mem, size_t len, const char *mode) +{ + FILE *fp = fmemopen (mem, len, mode); + if (fp == NULL) + FAIL_EXIT1 ("fmemopen (mode \"%s\"): %m", mode); + return fp; +} diff --git a/support/xstdio.h b/support/xstdio.h index c3fdf9496f..70b83f11da 100644 --- a/support/xstdio.h +++ b/support/xstdio.h @@ -27,6 +27,7 @@ __BEGIN_DECLS FILE *xfopen (const char *path, const char *mode); void xfclose (FILE *); FILE *xfreopen (const char *path, const char *mode, FILE *stream); +FILE *xfmemopen (void *mem, size_t len, const char *mode); void xfread (void *ptr, size_t size, size_t nmemb, FILE *stream); char *xfgets (char *s, int size, FILE *stream); -- 2.47.3