blob: b1c75743c5ae024184f68350491d3a0ef5e77cc6 [file] [log] [blame]
/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <sys/syscall.h>
#ifdef __NR_sendfile
# include <assert.h>
# include <errno.h>
# include <fcntl.h>
# include <stdio.h>
# include <stdint.h>
# include <unistd.h>
# include <sys/socket.h>
# include <sys/stat.h>
int
main(int ac, const char **av)
{
assert(ac == 1);
(void) close(0);
if (open("/dev/zero", O_RDONLY) != 0)
perror_msg_and_skip("open: %s", "/dev/zero");
int sv[2];
if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
perror_msg_and_skip("socketpair");
int reg_in = open(av[0], O_RDONLY);
if (reg_in < 0)
perror_msg_and_fail("open: %s", av[0]);
struct stat stb;
assert(fstat(reg_in, &stb) == 0);
const size_t blen = stb.st_size / 3;
const size_t alen = stb.st_size - blen;
assert(S_ISREG(stb.st_mode) && blen > 0);
const size_t page_len = get_page_size();
assert(syscall(__NR_sendfile, 0, 1, NULL, page_len) == -1);
if (EBADF != errno)
perror_msg_and_skip("sendfile");
printf("sendfile(0, 1, NULL, %lu) = -1 EBADF (%m)\n",
(unsigned long) page_len);
uint32_t *p_off = tail_alloc(sizeof(uint32_t));
void *p = p_off + 1;
*p_off = 0;
assert(syscall(__NR_sendfile, 0, 1, p, page_len) == -1);
printf("sendfile(0, 1, %#lx, %lu) = -1 EFAULT (%m)\n",
(unsigned long) p, (unsigned long) page_len);
assert(syscall(__NR_sendfile, sv[1], reg_in, NULL, alen)
== (long) alen);
printf("sendfile(%d, %d, NULL, %lu) = %lu\n",
sv[1], reg_in, (unsigned long) alen,
(unsigned long) alen);
p = p_off;
if (syscall(__NR_sendfile, sv[1], reg_in, p_off, alen) != (long) alen) {
printf("sendfile(%d, %d, %#lx, %lu) = -1 EFAULT (%m)\n",
sv[1], reg_in, (unsigned long) p_off,
(unsigned long) alen);
--p_off;
*p_off = 0;
assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, alen)
== (long) alen);
}
printf("sendfile(%d, %d, [0] => [%lu], %lu) = %lu\n",
sv[1], reg_in, (unsigned long) alen,
(unsigned long) alen, (unsigned long) alen);
assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, stb.st_size + 1)
== (long) blen);
printf("sendfile(%d, %d, [%lu] => [%lu], %lu) = %lu\n",
sv[1], reg_in, (unsigned long) alen,
(unsigned long) stb.st_size,
(unsigned long) stb.st_size + 1,
(unsigned long) blen);
if (p_off != p) {
uint64_t *p_off64 = (uint64_t *) p_off;
*p_off64 = 0xcafef00dfacefeed;
assert(syscall(__NR_sendfile, sv[1], reg_in, p_off64, 1) == -1);
printf("sendfile(%d, %d, [14627392582579060461], 1)"
" = -1 EINVAL (%m)\n", sv[1], reg_in);
*p_off64 = 0xdefaced;
} else {
*p_off = 0xdefaced;
}
assert(syscall(__NR_sendfile, sv[1], reg_in, p_off, 1) == 0);
printf("sendfile(%d, %d, [233811181], 1) = 0\n",
sv[1], reg_in);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_sendfile")
#endif