1 /* 2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao (at) gmail.com> 3 * Copyright (c) 2017 The strace developers. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "tests.h" 30 #include <stdio.h> 31 #include <sys/socket.h> 32 #include "netlink.h" 33 34 int 35 main(void) 36 { 37 skip_if_unavailable("/proc/self/fd/"); 38 39 long rc; 40 int fd = create_nl_socket(NETLINK_KOBJECT_UEVENT); 41 42 /* test using data that looks like a zero-length C string */ 43 char *const buf = tail_alloc(DEFAULT_STRLEN + 1); 44 buf[0] = '='; 45 fill_memory_ex(buf + 1, DEFAULT_STRLEN, 0, DEFAULT_STRLEN); 46 47 rc = sendto(fd, buf + 1, DEFAULT_STRLEN, MSG_DONTWAIT, NULL, 0); 48 printf("sendto(%d, ", fd); 49 print_quoted_memory(buf + 1, DEFAULT_STRLEN); 50 printf(", %u, MSG_DONTWAIT, NULL, 0) = %s\n", 51 DEFAULT_STRLEN, sprintrc(rc)); 52 53 rc = sendto(fd, buf, DEFAULT_STRLEN + 1, MSG_DONTWAIT, NULL, 0); 54 printf("sendto(%d, ", fd); 55 print_quoted_memory(buf, DEFAULT_STRLEN); 56 printf("..., %u, MSG_DONTWAIT, NULL, 0) = %s\n", 57 DEFAULT_STRLEN + 1, sprintrc(rc)); 58 59 puts("+++ exited with 0 +++"); 60 return 0; 61 } 62
