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158 lines
5.3 KiB
158 lines
5.3 KiB
4 months ago
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/*
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* Check decoding of sockname family syscalls.
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*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#include "tests.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#ifndef TEST_SYSCALL_NAME
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# error TEST_SYSCALL_NAME must be defined
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#endif
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#ifndef TEST_SYSCALL_STR
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# define TEST_SYSCALL_STR STRINGIFY_VAL(TEST_SYSCALL_NAME)
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#endif
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#define TEST_SOCKET TEST_SYSCALL_STR ".socket"
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#ifdef TEST_SYSCALL_PREPARE
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# define PREPARE_TEST_SYSCALL_INVOCATION do { TEST_SYSCALL_PREPARE; } while (0)
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#else
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# define PREPARE_TEST_SYSCALL_INVOCATION do {} while (0)
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#endif
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#ifndef PREFIX_S_ARGS
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# define PREFIX_S_ARGS
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#endif
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#ifndef PREFIX_F_ARGS
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# define PREFIX_F_ARGS
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#endif
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#ifndef PREFIX_S_STR
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# define PREFIX_S_STR ""
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#endif
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#ifndef PREFIX_F_STR
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# define PREFIX_F_STR ""
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#endif
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#ifndef SUFFIX_ARGS
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# define SUFFIX_ARGS
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#endif
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#ifndef SUFFIX_STR
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# define SUFFIX_STR ""
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#endif
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static void
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test_sockname_syscall(const int fd)
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{
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TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, plen);
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*plen = sizeof(struct sockaddr_un);
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struct sockaddr_un *addr = tail_alloc(*plen);
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PREPARE_TEST_SYSCALL_INVOCATION;
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int rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
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plen SUFFIX_ARGS);
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if (rc < 0)
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perror_msg_and_skip(TEST_SYSCALL_STR);
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printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%s\"}"
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", [%d->%d]%s) = %d\n",
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TEST_SYSCALL_STR, fd, PREFIX_S_STR, addr->sun_path,
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(int) sizeof(struct sockaddr_un), (int) *plen, SUFFIX_STR, rc);
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memset(addr, 0, sizeof(*addr));
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
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plen SUFFIX_ARGS);
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if (rc < 0)
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perror_msg_and_skip(TEST_SYSCALL_STR);
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printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%s\"}"
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", [%d]%s) = %d\n",
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TEST_SYSCALL_STR, fd, PREFIX_S_STR, addr->sun_path,
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(int) *plen, SUFFIX_STR, rc);
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr, 0 SUFFIX_ARGS);
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printf("%s(%d%s, %p, NULL%s) = %s\n",
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TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr, SUFFIX_STR,
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sprintrc(rc));
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, 0, 0 SUFFIX_ARGS);
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printf("%s(%d%s, NULL, NULL%s) = %s\n",
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TEST_SYSCALL_STR, fd, rc == -1 ? PREFIX_F_STR : PREFIX_S_STR,
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SUFFIX_STR, sprintrc(rc));
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
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plen + 1 SUFFIX_ARGS);
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printf("%s(%d%s, %p, %p%s) = %s\n",
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TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr,
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plen + 1, SUFFIX_STR, sprintrc(rc));
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const size_t offsetof_sun_path = offsetof(struct sockaddr_un, sun_path);
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*plen = offsetof_sun_path;
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memset(addr->sun_path, 'A', sizeof(addr->sun_path));
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
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plen SUFFIX_ARGS);
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if (rc < 0)
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perror_msg_and_skip(TEST_SYSCALL_STR);
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printf("%s(%d%s, {sa_family=AF_UNIX}, [%d->%d]%s) = %d\n",
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TEST_SYSCALL_STR, fd, PREFIX_S_STR,
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(int) offsetof_sun_path, (int) *plen, SUFFIX_STR, rc);
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++addr;
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*plen = sizeof(struct sockaddr);
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addr = (void *) addr - *plen;
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_S_ARGS, (void *) addr,
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plen SUFFIX_ARGS);
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if (rc < 0)
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perror_msg_and_skip(TEST_SYSCALL_STR);
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printf("%s(%d%s, {sa_family=AF_UNIX, sun_path=\"%.*s\"}"
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", [%d->%d]%s) = %d\n",
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TEST_SYSCALL_STR, fd, PREFIX_S_STR,
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(int) (sizeof(struct sockaddr) - offsetof_sun_path),
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addr->sun_path, (int) sizeof(struct sockaddr),
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(int) *plen, SUFFIX_STR, rc);
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PREPARE_TEST_SYSCALL_INVOCATION;
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rc = TEST_SYSCALL_NAME(fd PREFIX_F_ARGS, (void *) addr,
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plen SUFFIX_ARGS);
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printf("%s(%d%s, %p, [%d]%s) = %s\n",
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TEST_SYSCALL_STR, fd, PREFIX_F_STR, addr,
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*plen, SUFFIX_STR, sprintrc(rc));
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}
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