Mercurial > gnulib
view tests/test-openat.c @ 40206:770a5696761e
relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
This approach supports relocatable installation of shared libraries
which depend on other shared libraries from the same package.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
wrapper around the original LIBTOOL.
* build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
token '@loader_path' instead of '$ORIGIN'.
* build-aux/libtool-reloc: New file.
* modules/relocatable-prog (Files): Add it.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes. Document the need to set the *_LDFLAGS of libraries.
RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
Makefile.am, not in configure.ac.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:09 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Test that openat works. Copyright (C) 2009-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Eric Blake <ebb9@byu.net>, 2009. */ #include <config.h> #include <fcntl.h> #include "signature.h" SIGNATURE_CHECK (openat, int, (int, char const *, int, ...)); #include <errno.h> #include <stdarg.h> #include <stdbool.h> #include <stdio.h> #include <unistd.h> #include "macros.h" #define BASE "test-openat.t" #include "test-open.h" static int dfd = AT_FDCWD; /* Wrapper around openat to test open behavior. */ static int do_open (char const *name, int flags, ...) { if (flags & O_CREAT) { mode_t mode = 0; va_list arg; va_start (arg, flags); /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4 creates crashing code when 'mode_t' is smaller than 'int'. */ mode = va_arg (arg, PROMOTED_MODE_T); va_end (arg); return openat (dfd, name, flags, mode); } return openat (dfd, name, flags); } int main (int argc _GL_UNUSED, char *argv[]) { int result; /* Test behaviour for invalid file descriptors. */ { errno = 0; ASSERT (openat (-1, "foo", O_RDONLY) == -1); ASSERT (errno == EBADF); } { close (99); errno = 0; ASSERT (openat (99, "foo", O_RDONLY) == -1); ASSERT (errno == EBADF); } /* Basic checks. */ result = test_open (do_open, false); dfd = open (".", O_RDONLY); ASSERT (0 <= dfd); ASSERT (test_open (do_open, false) == result); ASSERT (close (dfd) == 0); /* Check that even when *-safer modules are in use, plain openat can land in fd 0. Do this test last, since it is destructive to stdin. */ ASSERT (close (STDIN_FILENO) == 0); ASSERT (openat (AT_FDCWD, ".", O_RDONLY) == STDIN_FILENO); { dfd = open (".", O_RDONLY); ASSERT (STDIN_FILENO < dfd); ASSERT (chdir ("..") == 0); ASSERT (close (STDIN_FILENO) == 0); ASSERT (openat (dfd, ".", O_RDONLY) == STDIN_FILENO); ASSERT (close (dfd) == 0); } return result; }