1 | /* |
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2 | * tokens 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 2006, 2007, 2009 |
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6 | * Board of Trustees, Leland Stanford Jr. University |
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7 | * |
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8 | * See LICENSE for licensing terms. |
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9 | */ |
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10 | |
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11 | #include <config.h> |
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12 | #include <portable/system.h> |
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13 | #include <portable/gssapi.h> |
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14 | #include <portable/socket.h> |
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15 | |
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16 | #include <fcntl.h> |
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17 | #include <sys/stat.h> |
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18 | #include <sys/time.h> |
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19 | #include <sys/wait.h> |
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20 | |
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21 | #include <tests/tap/basic.h> |
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22 | #include <util/util.h> |
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23 | |
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24 | /* A token for testing. */ |
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25 | static const char token[] = { 3, 0, 0, 0, 5, 'h', 'e', 'l', 'l', 'o' }; |
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26 | |
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27 | |
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28 | /* |
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29 | * Create a server socket, wait for a connection, and return the connected |
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30 | * socket. |
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31 | */ |
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32 | static int |
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33 | create_server(void) |
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34 | { |
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35 | int fd, conn, marker; |
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36 | struct sockaddr_in saddr; |
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37 | int on = 1; |
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38 | |
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39 | saddr.sin_family = AF_INET; |
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40 | saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
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41 | saddr.sin_port = htons(14373); |
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42 | fd = socket(AF_INET, SOCK_STREAM, 0); |
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43 | if (fd < 0) |
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44 | sysbail("error creating socket"); |
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45 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof(on)); |
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46 | if (bind(fd, (struct sockaddr *) &saddr, sizeof(saddr)) < 0) |
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47 | sysbail("error binding socket"); |
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48 | if (listen(fd, 1) < 0) |
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49 | sysbail("error listening on socket"); |
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50 | marker = open("server-ready", O_CREAT | O_TRUNC, 0666); |
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51 | if (marker < 0) |
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52 | sysbail("cannot create marker file"); |
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53 | conn = accept(fd, NULL, 0); |
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54 | if (conn < 0) |
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55 | sysbail("error accepting connection"); |
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56 | return conn; |
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57 | } |
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58 | |
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59 | |
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60 | /* |
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61 | * Create a client socket, it for a connection, and return the connected |
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62 | * socket. |
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63 | */ |
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64 | static int |
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65 | create_client(void) |
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66 | { |
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67 | int fd; |
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68 | struct sockaddr_in saddr; |
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69 | struct timeval tv; |
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70 | |
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71 | saddr.sin_family = AF_INET; |
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72 | saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
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73 | saddr.sin_port = htons(14373); |
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74 | fd = socket(AF_INET, SOCK_STREAM, 0); |
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75 | if (fd < 0) |
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76 | sysbail("error creating socket"); |
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77 | alarm(1); |
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78 | while (access("server-ready", F_OK) != 0) { |
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79 | tv.tv_sec = 0; |
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80 | tv.tv_usec = 10000; |
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81 | select(0, NULL, NULL, NULL, &tv); |
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82 | } |
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83 | alarm(0); |
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84 | if (connect(fd, (struct sockaddr *) &saddr, sizeof(saddr)) < 0) |
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85 | sysbail("error connecting"); |
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86 | return fd; |
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87 | } |
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88 | |
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89 | |
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90 | /* |
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91 | * Send a hand-constructed token to a file descriptor. |
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92 | */ |
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93 | static void |
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94 | send_hand_token(int fd) |
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95 | { |
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96 | xwrite(fd, token, sizeof(token)); |
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97 | } |
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98 | |
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99 | |
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100 | /* |
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101 | * Send a token via token_send to a file descriptor. |
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102 | */ |
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103 | static void |
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104 | send_regular_token(int fd) |
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105 | { |
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106 | gss_buffer_desc buffer; |
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107 | |
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108 | buffer.value = xmalloc(5); |
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109 | memcpy(buffer.value, "hello", 5); |
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110 | buffer.length = 5; |
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111 | token_send(fd, 3, &buffer); |
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112 | } |
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113 | |
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114 | |
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115 | int |
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116 | main(void) |
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117 | { |
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118 | pid_t child; |
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119 | int server, client, status, flags; |
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120 | char buffer[20]; |
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121 | ssize_t length; |
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122 | gss_buffer_desc result; |
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123 | |
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124 | alarm(2); |
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125 | |
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126 | plan(10); |
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127 | if (chdir(getenv("BUILD")) < 0) |
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128 | sysbail("can't chdir to BUILD"); |
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129 | |
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130 | unlink("server-ready"); |
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131 | child = fork(); |
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132 | if (child < 0) |
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133 | sysbail("cannot fork"); |
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134 | else if (child == 0) { |
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135 | server = create_server(); |
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136 | send_regular_token(server); |
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137 | exit(0); |
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138 | } else { |
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139 | client = create_client(); |
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140 | length = read(client, buffer, 12); |
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141 | is_int(10, length, "received token has correct length"); |
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142 | ok(memcmp(buffer, token, 10) == 0, "...and correct data"); |
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143 | waitpid(child, NULL, 0); |
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144 | } |
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145 | |
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146 | unlink("server-ready"); |
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147 | child = fork(); |
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148 | if (child < 0) |
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149 | sysbail("cannot fork"); |
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150 | else if (child == 0) { |
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151 | server = create_server(); |
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152 | send_hand_token(server); |
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153 | exit(0); |
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154 | } else { |
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155 | client = create_client(); |
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156 | status = token_recv(client, &flags, &result, 5); |
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157 | is_int(TOKEN_OK, status, "received hand-rolled token"); |
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158 | is_int(3, flags, "...with right flags"); |
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159 | is_int(5, result.length, "...and right length"); |
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160 | ok(memcmp(result.value, "hello", 5) == 0, "...and right data"); |
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161 | waitpid(child, NULL, 0); |
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162 | } |
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163 | |
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164 | unlink("server-ready"); |
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165 | child = fork(); |
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166 | if (child < 0) |
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167 | sysbail("cannot fork"); |
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168 | else if (child == 0) { |
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169 | server = create_server(); |
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170 | xwrite(server, "\0\0\0\0\1", 5); |
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171 | exit(0); |
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172 | } else { |
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173 | client = create_client(); |
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174 | status = token_recv(client, &flags, &result, 200); |
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175 | is_int(TOKEN_FAIL_INVALID, status, "receive invalid token"); |
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176 | waitpid(child, NULL, 0); |
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177 | } |
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178 | |
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179 | unlink("server-ready"); |
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180 | child = fork(); |
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181 | if (child < 0) |
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182 | sysbail("cannot fork"); |
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183 | else if (child == 0) { |
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184 | server = create_server(); |
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185 | send_hand_token(server); |
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186 | exit(0); |
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187 | } else { |
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188 | client = create_client(); |
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189 | status = token_recv(client, &flags, &result, 4); |
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190 | is_int(TOKEN_FAIL_LARGE, status, "receive too-large token"); |
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191 | waitpid(child, NULL, 0); |
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192 | } |
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193 | |
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194 | unlink("server-ready"); |
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195 | child = fork(); |
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196 | if (child < 0) |
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197 | sysbail("cannot fork"); |
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198 | else if (child == 0) { |
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199 | server = create_server(); |
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200 | close(server); |
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201 | exit(0); |
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202 | } else { |
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203 | client = create_client(); |
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204 | status = token_recv(client, &flags, &result, 4); |
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205 | is_int(TOKEN_FAIL_EOF, status, "receive end of file"); |
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206 | waitpid(child, NULL, 0); |
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207 | } |
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208 | unlink("server-ready"); |
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209 | |
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210 | /* Special test for error handling when sending tokens. */ |
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211 | server = open("/dev/full", O_RDWR); |
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212 | if (server < 0) |
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213 | skip("/dev/full not available"); |
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214 | else { |
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215 | result.value = xmalloc(5); |
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216 | memcpy(result.value, "hello", 5); |
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217 | result.length = 5; |
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218 | status = token_send(server, 3, &result); |
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219 | free(result.value); |
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220 | is_int(TOKEN_FAIL_SOCKET, status, "can't send due to system error"); |
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221 | close(server); |
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222 | } |
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223 | |
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224 | return 0; |
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225 | } |
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