1 /* 2 * Copyright (c) 2014 Masatake YAMATO <yamato (at) redhat.com> 3 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv (at) altlinux.org> 4 * Copyright (c) 2014-2017 The strace developers. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "tests.h" 31 #include <assert.h> 32 #include <unistd.h> 33 34 #include "msghdr.h" 35 36 int 37 main(void) 38 { 39 tprintf("%s", ""); 40 41 int fds[2]; 42 if (socketpair(AF_UNIX, SOCK_DGRAM, 0, fds)) 43 perror_msg_and_skip("socketpair"); 44 assert(0 == fds[0]); 45 assert(1 == fds[1]); 46 47 static const char w0_c[] = "012"; 48 const char *w0_d = hexdump_strdup(w0_c); 49 void *w0 = tail_memdup(w0_c, LENGTH_OF(w0_c)); 50 51 static const char w1_c[] = "34567"; 52 const char *w1_d = hexdump_strdup(w1_c); 53 void *w1 = tail_memdup(w1_c, LENGTH_OF(w1_c)); 54 55 static const char w2_c[] = "89abcde"; 56 const char *w2_d = hexdump_strdup(w2_c); 57 void *w2 = tail_memdup(w2_c, LENGTH_OF(w2_c)); 58 59 const struct iovec w0_iov_[] = { 60 { 61 .iov_base = w0, 62 .iov_len = LENGTH_OF(w0_c) 63 }, { 64 .iov_base = w1, 65 .iov_len = LENGTH_OF(w1_c) 66 } 67 }; 68 struct iovec *w0_iov = tail_memdup(w0_iov_, sizeof(w0_iov_)); 69 70 const struct iovec w1_iov_[] = { 71 { 72 .iov_base = w2, 73 .iov_len = LENGTH_OF(w2_c) 74 } 75 }; 76 struct iovec *w1_iov = tail_memdup(w1_iov_, sizeof(w1_iov_)); 77 78 const struct mmsghdr w_mmh_[] = { 79 { 80 .msg_hdr = { 81 .msg_iov = w0_iov, 82 .msg_iovlen = ARRAY_SIZE(w0_iov_), 83 } 84 }, { 85 .msg_hdr = { 86 .msg_iov = w1_iov, 87 .msg_iovlen = ARRAY_SIZE(w1_iov_), 88 } 89 } 90 }; 91 void *w_mmh = tail_memdup(w_mmh_, sizeof(w_mmh_)); 92 const unsigned int n_w_mmh = ARRAY_SIZE(w_mmh_); 93 94 int r = send_mmsg(1, w_mmh, n_w_mmh, MSG_DONTROUTE | MSG_NOSIGNAL); 95 if (r < 0) 96 perror_msg_and_skip("sendmmsg"); 97 assert(r == (int) n_w_mmh); 98 assert(close(1) == 0); 99 tprintf("sendmmsg(1, [{msg_hdr={msg_name=NULL, msg_namelen=0" 100 ", msg_iov=[{iov_base=\"%s\", iov_len=%u}" 101 ", {iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u" 102 ", msg_controllen=0, msg_flags=0}, msg_len=%u}" 103 ", {msg_hdr={msg_name=NULL, msg_namelen=0" 104 ", msg_iov=[{iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u" 105 ", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u" 106 ", MSG_DONTROUTE|MSG_NOSIGNAL) = %d\n" 107 " = %u buffers in vector 0\n" 108 " * %u bytes in buffer 0\n" 109 " | 00000 %-49s %-16s |\n" 110 " * %u bytes in buffer 1\n" 111 " | 00000 %-49s %-16s |\n" 112 " = %u buffers in vector 1\n" 113 " * %u bytes in buffer 0\n" 114 " | 00000 %-49s %-16s |\n", 115 w0_c, LENGTH_OF(w0_c), 116 w1_c, LENGTH_OF(w1_c), 117 (unsigned int) ARRAY_SIZE(w0_iov_), 118 LENGTH_OF(w0_c) + LENGTH_OF(w1_c), 119 w2_c, LENGTH_OF(w2_c), (unsigned int) ARRAY_SIZE(w1_iov_), 120 LENGTH_OF(w2_c), 121 n_w_mmh, r, 122 (unsigned int) ARRAY_SIZE(w0_iov_), 123 LENGTH_OF(w0_c), w0_d, w0_c, 124 LENGTH_OF(w1_c), w1_d, w1_c, 125 (unsigned int) ARRAY_SIZE(w1_iov_), 126 LENGTH_OF(w2_c), w2_d, w2_c); 127 128 const unsigned int w_len = 129 LENGTH_OF(w0_c) + LENGTH_OF(w1_c) + LENGTH_OF(w2_c); 130 const unsigned int r_len = (w_len + 1) / 2; 131 void *r0 = tail_alloc(r_len); 132 void *r1 = tail_alloc(r_len); 133 void *r2 = tail_alloc(r_len); 134 const struct iovec r0_iov_[] = { 135 { 136 .iov_base = r0, 137 .iov_len = r_len 138 } 139 }; 140 struct iovec *r0_iov = tail_memdup(r0_iov_, sizeof(r0_iov_)); 141 const struct iovec r1_iov_[] = { 142 { 143 .iov_base = r1, 144 .iov_len = r_len 145 }, 146 { 147 .iov_base = r2, 148 .iov_len = r_len 149 } 150 }; 151 struct iovec *r1_iov = tail_memdup(r1_iov_, sizeof(r1_iov_)); 152 153 const struct mmsghdr r_mmh_[] = { 154 { 155 .msg_hdr = { 156 .msg_iov = r0_iov, 157 .msg_iovlen = ARRAY_SIZE(r0_iov_), 158 } 159 }, { 160 .msg_hdr = { 161 .msg_iov = r1_iov, 162 .msg_iovlen = ARRAY_SIZE(r1_iov_), 163 } 164 } 165 }; 166 void *r_mmh = tail_memdup(r_mmh_, sizeof(r_mmh_)); 167 const unsigned int n_r_mmh = ARRAY_SIZE(r_mmh_); 168 169 static const char r0_c[] = "01234567"; 170 const char *r0_d = hexdump_strdup(r0_c); 171 static const char r1_c[] = "89abcde"; 172 const char *r1_d = hexdump_strdup(r1_c); 173 174 assert(recv_mmsg(0, r_mmh, n_r_mmh, MSG_DONTWAIT, NULL) == (int) n_r_mmh); 175 assert(close(0) == 0); 176 tprintf("recvmmsg(0, [{msg_hdr={msg_name=NULL, msg_namelen=0" 177 ", msg_iov=[{iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u" 178 ", msg_controllen=0, msg_flags=0}, msg_len=%u}" 179 ", {msg_hdr={msg_name=NULL, msg_namelen=0" 180 ", msg_iov=[{iov_base=\"%s\", iov_len=%u}" 181 ", {iov_base=\"\", iov_len=%u}], msg_iovlen=%u" 182 ", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u" 183 ", MSG_DONTWAIT, NULL) = %d\n" 184 " = %u buffers in vector 0\n" 185 " * %u bytes in buffer 0\n" 186 " | 00000 %-49s %-16s |\n" 187 " = %u buffers in vector 1\n" 188 " * %u bytes in buffer 0\n" 189 " | 00000 %-49s %-16s |\n", 190 r0_c, r_len, (unsigned int) ARRAY_SIZE(r0_iov_), 191 LENGTH_OF(r0_c), r1_c, r_len, r_len, 192 (unsigned int) ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c), 193 n_r_mmh, r, 194 (unsigned int) ARRAY_SIZE(r0_iov_), LENGTH_OF(r0_c), 195 r0_d, r0_c, 196 (unsigned int) ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c), 197 r1_d, r1_c); 198 199 tprintf("+++ exited with 0 +++\n"); 200 return 0; 201 } 202
