Dmitry V. Levin
49182851eb
* tests/sendfile.c: New file. * tests/sendfile64.c: New file. * tests/sendfile.test: New test. * tests/sendfile64.test: New test. * tests/Makefile.am (check_PROGRAMS): Add sendfile and sendfile64. (TESTS): Add sendfile.test and sendfile64.test. * tests/.gitignore: Add sendfile and sendfile64.
132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#ifdef __NR_sendfile64
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int
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main(int ac, const char **av)
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{
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assert(ac == 2);
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(void) close(0);
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if (open("/dev/zero", O_RDONLY) != 0)
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return 77;
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int sv[2];
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if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
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return 77;
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int reg_in = open(av[1], O_RDONLY);
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if (reg_in < 0)
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return 77;
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struct stat stb;
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if (fstat(reg_in, &stb))
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return 77;
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const size_t blen = stb.st_size / 3;
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const size_t alen = stb.st_size - blen;
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assert(S_ISREG(stb.st_mode) && blen > 0);
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const size_t page_len = sysconf(_SC_PAGESIZE);
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if (!syscall(__NR_sendfile64, 0, 1, NULL, page_len) ||
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EBADF != errno)
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return 77;
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printf("sendfile64\\(0, 1, NULL, %lu\\) += -1 EBADF .*\n",
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(unsigned long) page_len);
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void *p = mmap(NULL, page_len * 2, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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if (MAP_FAILED == p || munmap(p + page_len, page_len))
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return 77;
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if (!syscall(__NR_sendfile64, 0, 1, p + page_len, page_len))
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return 77;
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printf("sendfile64\\(0, 1, %#lx, %lu\\) += -1 EFAULT .*\n",
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(unsigned long) p + page_len, (unsigned long) page_len);
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if (syscall(__NR_sendfile64, sv[1], reg_in, NULL, alen) != (long) alen)
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return 77;
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printf("sendfile64\\(%d, %d, NULL, %lu\\) += %lu\n",
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sv[1], reg_in, (unsigned long) alen,
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(unsigned long) alen);
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uint64_t *p_off = p + page_len - sizeof(uint64_t);
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if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, alen) != (long) alen)
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return 77;
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printf("sendfile64\\(%d, %d, \\[0\\] => \\[%lu\\], %lu\\) += %lu\n",
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sv[1], reg_in, (unsigned long) alen,
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(unsigned long) alen, (unsigned long) alen);
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if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, stb.st_size + 1)
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!= (long) blen)
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return 77;
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printf("sendfile64\\(%d, %d, \\[%lu\\] => \\[%lu\\], %lu\\) += %lu\n",
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sv[1], reg_in, (unsigned long) alen,
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(unsigned long) stb.st_size,
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(unsigned long) stb.st_size + 1,
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(unsigned long) blen);
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*p_off = 0xcafef00dfacefeed;
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if (!syscall(__NR_sendfile64, sv[1], reg_in, p_off, 1))
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return 77;
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printf("sendfile64\\(%d, %d, \\[14627392582579060461\\], 1\\) += -1 EINVAL .*\n",
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sv[1], reg_in);
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*p_off = 0xfacefeed;
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if (syscall(__NR_sendfile64, sv[1], reg_in, p_off, 1))
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return 77;
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printf("sendfile64\\(%d, %d, \\[4207869677\\], 1\\) += 0\n",
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sv[1], reg_in);
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return 0;
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}
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#else
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int
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main(void)
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{
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return 77;
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}
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#endif
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