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f90218886f
The new PRELOAD_FDS variable accepts a list of file descriptors that should be loaded into the process. This may be used to optimize a loading process - in the case when we already have a file descriptor to the library; we don't have to look into multiple PATH to find it. It may also be used in capability mode to load a single additional library without the need to open a directory that contains it. The last use of this functionality t may be a race-free method of loading libraries. Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D29334
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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* Copyright 2014 Jonathan Anderson.
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* Copyright 2021 Mariusz Zaborski <oshogbo@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <atf-c.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include "common.h"
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void
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expect_success(int binary, char *senv)
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{
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char * const env[] = { senv, NULL };
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try_to_run(binary, 0, env, "the hypotenuse of 3 and 4 is 5\n", "");
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}
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void
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expect_missing_library(int binary, char *senv)
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{
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char * const env[] = { senv, NULL };
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try_to_run(binary, 1, env, "",
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"ld-elf.so.1: Shared object \"libpythagoras.so.0\" not found,"
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" required by \"target\"\n");
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}
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void
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try_to_run(int binary, int exit_status, char * const *env,
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const char *expected_out, const char *expected_err)
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{
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pid_t child = atf_utils_fork();
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if (child == 0) {
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char * const args[] = { "target", NULL };
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fexecve(binary, args, env);
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atf_tc_fail("fexecve() failed");
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}
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atf_utils_wait(child, exit_status, expected_out, expected_err);
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}
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int
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opendir(const char *name)
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{
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return open(name, O_RDONLY | O_DIRECTORY);
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}
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int
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opendirat(int parent, const char *name)
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{
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return openat(parent, name, O_RDONLY | O_DIRECTORY);
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}
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