1 | /* |
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2 | * network test suite. |
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3 | * |
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4 | * Written by Russ Allbery <rra@stanford.edu> |
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5 | * Copyright 2009 Board of Trustees, Leland Stanford Jr. University |
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6 | * Copyright (c) 2004, 2005, 2006, 2007 |
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7 | * by Internet Systems Consortium, Inc. ("ISC") |
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8 | * Copyright (c) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
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9 | * 2002, 2003 by The Internet Software Consortium and Rich Salz |
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10 | * |
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11 | * See LICENSE for licensing terms. |
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12 | */ |
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13 | |
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14 | #include <config.h> |
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15 | #include <portable/system.h> |
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16 | #include <portable/socket.h> |
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17 | |
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18 | #include <ctype.h> |
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19 | #include <errno.h> |
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20 | #include <sys/wait.h> |
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21 | |
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22 | #include <tests/tap/basic.h> |
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23 | #include <util/util.h> |
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24 | |
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25 | /* Set this globally to 0 if IPv6 is available but doesn't work. */ |
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26 | static int ipv6 = 1; |
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27 | |
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28 | /* |
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29 | * The server portion of the test. Listens to a socket and accepts a |
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30 | * connection, making sure what is printed on that connection matches what the |
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31 | * client is supposed to print. |
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32 | */ |
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33 | static void |
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34 | listener(int fd) |
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35 | { |
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36 | int client; |
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37 | FILE *out; |
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38 | char buffer[512]; |
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39 | |
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40 | client = accept(fd, NULL, NULL); |
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41 | close(fd); |
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42 | if (client < 0) { |
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43 | sysnotice("# cannot accept connection from socket"); |
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44 | ok_block(2, 0, "...socket read test"); |
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45 | } |
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46 | ok(1, "...socket accept"); |
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47 | out = fdopen(client, "r"); |
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48 | if (fgets(buffer, sizeof(buffer), out) == NULL) { |
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49 | sysnotice("# cannot read from socket"); |
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50 | ok(0, "...socket read"); |
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51 | } |
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52 | is_string("socket test\r\n", buffer, "...socket read"); |
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53 | fclose(out); |
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54 | } |
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55 | |
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56 | |
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57 | /* |
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58 | * Connect to the given host on port 11119 and send a constant string to a |
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59 | * socket, used to do the client side of the testing. Takes the source |
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60 | * address as well to pass into network_connect_host. |
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61 | */ |
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62 | static void |
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63 | client(const char *host, const char *source) |
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64 | { |
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65 | int fd; |
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66 | FILE *out; |
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67 | |
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68 | fd = network_connect_host(host, 11119, source); |
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69 | if (fd < 0) |
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70 | sysdie("connect failed"); |
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71 | out = fdopen(fd, "w"); |
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72 | if (out == NULL) |
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73 | sysdie("fdopen failed"); |
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74 | fputs("socket test\r\n", out); |
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75 | fclose(out); |
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76 | _exit(0); |
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77 | } |
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78 | |
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79 | |
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80 | /* |
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81 | * Bring up a server on port 11119 on the loopback address and test connecting |
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82 | * to it via IPv4. Takes an optional source address to use for client |
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83 | * connections. |
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84 | */ |
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85 | static void |
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86 | test_ipv4(const char *source) |
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87 | { |
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88 | int fd; |
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89 | pid_t child; |
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90 | |
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91 | fd = network_bind_ipv4("127.0.0.1", 11119); |
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92 | if (fd < 0) |
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93 | sysbail("cannot create or bind socket"); |
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94 | if (listen(fd, 1) < 0) { |
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95 | sysnotice("# cannot listen to socket"); |
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96 | ok_block(3, 0, "IPv4 server test"); |
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97 | } else { |
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98 | ok(1, "IPv4 server test"); |
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99 | child = fork(); |
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100 | if (child < 0) |
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101 | sysbail("cannot fork"); |
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102 | else if (child == 0) |
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103 | client("127.0.0.1", source); |
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104 | else { |
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105 | listener(fd); |
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106 | waitpid(child, NULL, 0); |
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107 | } |
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108 | } |
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109 | } |
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110 | |
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111 | |
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112 | /* |
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113 | * Bring up a server on port 11119 on the loopback address and test connecting |
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114 | * to it via IPv6. Takes an optional source address to use for client |
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115 | * connections. |
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116 | */ |
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117 | #ifdef HAVE_INET6 |
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118 | static void |
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119 | test_ipv6(const char *source) |
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120 | { |
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121 | int fd; |
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122 | pid_t child; |
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123 | |
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124 | fd = network_bind_ipv6("::1", 11119); |
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125 | if (fd < 0) { |
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126 | if (errno == EAFNOSUPPORT || errno == EPROTONOSUPPORT |
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127 | || errno == EADDRNOTAVAIL) { |
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128 | ipv6 = 0; |
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129 | skip_block(3, "IPv6 not supported"); |
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130 | } else |
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131 | sysbail("cannot create socket"); |
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132 | } |
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133 | if (listen(fd, 1) < 0) { |
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134 | sysnotice("# cannot listen to socket"); |
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135 | ok_block(3, 0, "IPv6 server test"); |
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136 | } else { |
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137 | ok(1, "IPv6 server test"); |
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138 | child = fork(); |
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139 | if (child < 0) |
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140 | sysbail("cannot fork"); |
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141 | else if (child == 0) |
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142 | client("::1", source); |
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143 | else { |
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144 | listener(fd); |
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145 | waitpid(child, NULL, 0); |
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146 | } |
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147 | } |
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148 | } |
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149 | #else /* !HAVE_INET6 */ |
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150 | static void |
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151 | test_ipv6(const char *source UNUSED) |
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152 | { |
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153 | skip_block(3, "IPv6 not supported"); |
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154 | } |
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155 | #endif /* !HAVE_INET6 */ |
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156 | |
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157 | |
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158 | /* |
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159 | * Bring up a server on port 11119 on all addresses and try connecting to it |
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160 | * via all of the available protocols. Takes an optional source address to |
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161 | * use for client connections. |
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162 | */ |
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163 | static void |
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164 | test_all(const char *source_ipv4, const char *source_ipv6) |
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165 | { |
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166 | int *fds, count, fd, i; |
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167 | pid_t child; |
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168 | struct sockaddr_storage saddr; |
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169 | socklen_t size = sizeof(saddr); |
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170 | |
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171 | network_bind_all(11119, &fds, &count); |
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172 | if (count == 0) |
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173 | sysbail("cannot create or bind socket"); |
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174 | if (count > 2) { |
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175 | notice("# got more than two sockets, using just the first two"); |
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176 | count = 2; |
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177 | } |
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178 | for (i = 0; i < count; i++) { |
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179 | fd = fds[i]; |
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180 | if (listen(fd, 1) < 0) { |
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181 | sysnotice("# cannot listen to socket %d", fd); |
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182 | ok_block(3, 0, "all address server test"); |
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183 | } else { |
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184 | ok(1, "all address server test (part %d)", i); |
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185 | child = fork(); |
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186 | if (child < 0) |
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187 | sysbail("cannot fork"); |
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188 | else if (child == 0) { |
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189 | if (getsockname(fd, (struct sockaddr *) &saddr, &size) < 0) |
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190 | sysbail("cannot getsockname"); |
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191 | if (saddr.ss_family == AF_INET) |
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192 | client("127.0.0.1", source_ipv4); |
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193 | #ifdef HAVE_INET6 |
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194 | else if (saddr.ss_family == AF_INET6) |
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195 | client("::1", source_ipv6); |
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196 | #endif |
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197 | else |
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198 | skip_block(2, "unknown socket family %d", saddr.ss_family); |
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199 | size = sizeof(saddr); |
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200 | } else { |
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201 | listener(fd); |
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202 | waitpid(child, NULL, 0); |
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203 | } |
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204 | } |
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205 | } |
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206 | if (count == 1) |
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207 | skip_block(3, "only one listening socket"); |
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208 | } |
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209 | |
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210 | |
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211 | /* |
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212 | * Bring up a server on port 11119 on the loopback address and test connecting |
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213 | * to it via IPv4 using network_client_create. Takes an optional source |
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214 | * address to use for client connections. |
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215 | */ |
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216 | static void |
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217 | test_create_ipv4(const char *source) |
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218 | { |
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219 | int fd; |
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220 | pid_t child; |
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221 | |
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222 | fd = network_bind_ipv4("127.0.0.1", 11119); |
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223 | if (fd < 0) |
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224 | sysbail("cannot create or bind socket"); |
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225 | if (listen(fd, 1) < 0) { |
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226 | sysnotice("# cannot listen to socket"); |
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227 | ok_block(3, 0, "IPv4 network client"); |
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228 | } else { |
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229 | ok(1, "IPv4 network client"); |
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230 | child = fork(); |
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231 | if (child < 0) |
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232 | sysbail("cannot fork"); |
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233 | else if (child == 0) { |
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234 | struct sockaddr_in sin; |
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235 | FILE *out; |
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236 | |
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237 | fd = network_client_create(PF_INET, SOCK_STREAM, source); |
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238 | if (fd < 0) |
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239 | _exit(1); |
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240 | sin.sin_family = AF_INET; |
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241 | sin.sin_port = htons(11119); |
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242 | sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
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243 | if (connect(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0) |
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244 | _exit(1); |
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245 | out = fdopen(fd, "w"); |
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246 | if (out == NULL) |
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247 | _exit(1); |
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248 | fputs("socket test\r\n", out); |
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249 | fclose(out); |
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250 | _exit(0); |
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251 | } else { |
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252 | listener(fd); |
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253 | waitpid(child, NULL, 0); |
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254 | } |
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255 | } |
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256 | } |
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257 | |
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258 | |
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259 | /* |
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260 | * Tests network_addr_compare. Takes the expected result, the two addresses, |
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261 | * and the mask. |
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262 | */ |
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263 | static void |
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264 | ok_addr(int expected, const char *a, const char *b, const char *mask) |
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265 | { |
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266 | if (expected) |
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267 | ok(network_addr_match(a, b, mask), "compare %s %s %s", a, b, mask); |
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268 | else |
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269 | ok(!network_addr_match(a, b, mask), "compare %s %s %s", a, b, mask); |
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270 | } |
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271 | |
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272 | |
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273 | int |
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274 | main(void) |
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275 | { |
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276 | int status; |
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277 | struct addrinfo *ai, *ai4; |
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278 | struct addrinfo hints; |
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279 | char addr[INET6_ADDRSTRLEN]; |
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280 | static const char *port = "119"; |
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281 | |
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282 | #ifdef HAVE_INET6 |
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283 | struct addrinfo *ai6; |
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284 | char *p; |
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285 | static const char *ipv6_addr = "FEDC:BA98:7654:3210:FEDC:BA98:7654:3210"; |
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286 | #endif |
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287 | |
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288 | plan(87); |
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289 | |
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290 | /* |
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291 | * If IPv6 support appears to be available but doesn't work, we have to |
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292 | * skip the test_all tests since they'll create a socket that we then |
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293 | * can't connect to. This is the case on Solaris 8 without IPv6 |
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294 | * configured. |
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295 | */ |
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296 | test_ipv4(NULL); |
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297 | test_ipv6(NULL); |
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298 | if (ipv6) |
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299 | test_all(NULL, NULL); |
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300 | else |
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301 | skip_block(6, "IPv6 not configured"); |
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302 | test_create_ipv4(NULL); |
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303 | |
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304 | /* This won't make a difference for loopback connections. */ |
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305 | test_ipv4("127.0.0.1"); |
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306 | test_ipv6("::1"); |
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307 | if (ipv6) |
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308 | test_all("127.0.0.1", "::1"); |
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309 | else |
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310 | skip_block(6, "IPv6 not configured"); |
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311 | test_create_ipv4("127.0.0.1"); |
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312 | |
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313 | /* |
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314 | * Now, test network_sockaddr_sprint, network_sockaddr_equal, and |
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315 | * network_sockaddr_port. |
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316 | */ |
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317 | memset(&hints, 0, sizeof(hints)); |
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318 | hints.ai_flags = AI_NUMERICHOST; |
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319 | hints.ai_socktype = SOCK_STREAM; |
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320 | status = getaddrinfo("127.0.0.1", port, &hints, &ai4); |
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321 | if (status != 0) |
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322 | bail("getaddrinfo on 127.0.0.1 failed: %s", gai_strerror(status)); |
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323 | ok(network_sockaddr_sprint(addr, sizeof(addr), ai4->ai_addr), |
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324 | "sprint of 127.0.0.1"); |
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325 | is_string("127.0.0.1", addr, "...with right results"); |
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326 | is_int(119, network_sockaddr_port(ai4->ai_addr), |
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327 | "sockaddr_port"); |
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328 | ok(network_sockaddr_equal(ai4->ai_addr, ai4->ai_addr), "sockaddr_equal"); |
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329 | status = getaddrinfo("127.0.0.2", NULL, &hints, &ai); |
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330 | if (status != 0) |
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331 | bail("getaddrinfo on 127.0.0.2 failed: %s", gai_strerror(status)); |
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332 | ok(!network_sockaddr_equal(ai->ai_addr, ai4->ai_addr), |
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333 | "sockaddr_equal of unequal addresses"); |
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334 | ok(!network_sockaddr_equal(ai4->ai_addr, ai->ai_addr), |
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335 | "...and the other way around"); |
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336 | |
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337 | /* The same for IPv6. */ |
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338 | #ifdef HAVE_INET6 |
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339 | status = getaddrinfo(ipv6_addr, port, &hints, &ai6); |
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340 | if (status != 0) |
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341 | bail("getaddr on %s failed: %s", ipv6_addr, gai_strerror(status)); |
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342 | ok(network_sockaddr_sprint(addr, sizeof(addr), ai6->ai_addr), |
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343 | "sprint of IPv6 address"); |
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344 | for (p = addr; *p != '\0'; p++) |
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345 | if (islower((unsigned char) *p)) |
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346 | *p = toupper((unsigned char) *p); |
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347 | is_string(ipv6_addr, addr, "...with right results"); |
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348 | is_int(119, network_sockaddr_port(ai6->ai_addr), "sockaddr_port IPv6"); |
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349 | ok(network_sockaddr_equal(ai6->ai_addr, ai6->ai_addr), |
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350 | "sockaddr_equal IPv6"); |
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351 | ok(!network_sockaddr_equal(ai4->ai_addr, ai6->ai_addr), |
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352 | "...and not equal to IPv4"); |
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353 | ok(!network_sockaddr_equal(ai6->ai_addr, ai4->ai_addr), |
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354 | "...other way around"); |
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355 | |
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356 | /* Test IPv4 mapped addresses. */ |
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357 | status = getaddrinfo("::ffff:7f00:1", NULL, &hints, &ai6); |
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358 | if (status != 0) |
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359 | bail("getaddr on ::ffff:7f00:1 failed: %s", gai_strerror(status)); |
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360 | ok(network_sockaddr_sprint(addr, sizeof(addr), ai6->ai_addr), |
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361 | "sprint of IPv4-mapped address"); |
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362 | is_string("127.0.0.1", addr, "...with right IPv4 result"); |
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363 | ok(network_sockaddr_equal(ai4->ai_addr, ai6->ai_addr), |
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364 | "sockaddr_equal of IPv4-mapped address"); |
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365 | ok(network_sockaddr_equal(ai6->ai_addr, ai4->ai_addr), |
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366 | "...and other way around"); |
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367 | ok(!network_sockaddr_equal(ai->ai_addr, ai6->ai_addr), |
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368 | "...but not some other address"); |
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369 | ok(!network_sockaddr_equal(ai6->ai_addr, ai->ai_addr), |
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370 | "...and the other way around"); |
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371 | freeaddrinfo(ai6); |
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372 | #else |
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373 | skip_block(12, "IPv6 not supported"); |
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374 | #endif |
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375 | |
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376 | /* Check the domains of functions and their error handling. */ |
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377 | ai4->ai_addr->sa_family = AF_UNIX; |
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378 | ok(!network_sockaddr_equal(ai4->ai_addr, ai4->ai_addr), |
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379 | "equal not equal with address mismatches"); |
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380 | is_int(0, network_sockaddr_port(ai4->ai_addr), |
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381 | "port meaningless for AF_UNIX"); |
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382 | |
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383 | /* Tests for network_addr_compare. */ |
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384 | ok_addr(1, "127.0.0.1", "127.0.0.1", NULL); |
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385 | ok_addr(0, "127.0.0.1", "127.0.0.2", NULL); |
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386 | ok_addr(1, "127.0.0.1", "127.0.0.0", "31"); |
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387 | ok_addr(0, "127.0.0.1", "127.0.0.0", "32"); |
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388 | ok_addr(0, "127.0.0.1", "127.0.0.0", "255.255.255.255"); |
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389 | ok_addr(1, "127.0.0.1", "127.0.0.0", "255.255.255.254"); |
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390 | ok_addr(1, "10.10.4.5", "10.10.4.255", "24"); |
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391 | ok_addr(0, "10.10.4.5", "10.10.4.255", "25"); |
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392 | ok_addr(1, "10.10.4.5", "10.10.4.255", "255.255.255.0"); |
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393 | ok_addr(0, "10.10.4.5", "10.10.4.255", "255.255.255.128"); |
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394 | ok_addr(0, "129.0.0.0", "1.0.0.0", "1"); |
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395 | ok_addr(1, "129.0.0.0", "1.0.0.0", "0"); |
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396 | ok_addr(1, "129.0.0.0", "1.0.0.0", "0.0.0.0"); |
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397 | |
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398 | /* Try some IPv6 addresses. */ |
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399 | #ifdef HAVE_INET6 |
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400 | ok_addr(1, ipv6_addr, ipv6_addr, NULL); |
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401 | ok_addr(1, ipv6_addr, ipv6_addr, "128"); |
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402 | ok_addr(1, ipv6_addr, ipv6_addr, "60"); |
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403 | ok_addr(1, "::127", "0:0::127", "128"); |
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404 | ok_addr(1, "::127", "0:0::128", "120"); |
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405 | ok_addr(0, "::127", "0:0::128", "128"); |
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406 | ok_addr(0, "::7fff", "0:0::8000", "113"); |
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407 | ok_addr(1, "::7fff", "0:0::8000", "112"); |
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408 | ok_addr(0, "::3:ffff", "::2:ffff", "120"); |
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409 | ok_addr(0, "::3:ffff", "::2:ffff", "119"); |
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410 | ok_addr(0, "ffff::1", "7fff::1", "1"); |
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411 | ok_addr(1, "ffff::1", "7fff::1", "0"); |
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412 | ok_addr(0, "fffg::1", "fffg::1", NULL); |
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413 | ok_addr(0, "ffff::1", "7fff::1", "-1"); |
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414 | ok_addr(0, "ffff::1", "ffff::1", "-1"); |
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415 | ok_addr(0, "ffff::1", "ffff::1", "129"); |
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416 | #else |
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417 | skip_block(16, "IPv6 not supported"); |
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418 | #endif |
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419 | |
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420 | /* Test some invalid addresses. */ |
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421 | ok_addr(0, "fred", "fred", NULL); |
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422 | ok_addr(0, "", "", NULL); |
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423 | ok_addr(0, "", "", "0"); |
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424 | ok_addr(0, "127.0.0.1", "127.0.0.1", "pete"); |
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425 | ok_addr(0, "127.0.0.1", "127.0.0.1", "1p"); |
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426 | ok_addr(0, "127.0.0.1", "127.0.0.1", "1p"); |
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427 | ok_addr(0, "127.0.0.1", "127.0.0.1", "-1"); |
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428 | ok_addr(0, "127.0.0.1", "127.0.0.1", "33"); |
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429 | |
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430 | return 0; |
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431 | } |
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