1 | #include "server.h" |
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2 | |
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3 | void my_shutdown(int n){ |
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4 | printf("server recvd SIGPIPE"); |
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5 | exit(1); |
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6 | } |
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7 | |
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8 | int main(int argc, char ** argv) |
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9 | { |
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10 | /* variables to parse arguments */ |
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11 | extern int optind, |
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12 | optopt; |
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13 | extern char * optarg; |
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14 | |
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15 | char * log_file; |
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16 | int c = (int)NULL, |
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17 | errflg = (int)NULL, |
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18 | verbose = (int)NULL, |
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19 | optval = 1; |
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20 | |
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21 | socklen_t optlen = sizeof(optval); |
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22 | |
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23 | /* fd -> file descriptor */ |
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24 | int socket_server_fd = (int)NULL, |
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25 | socket_server_port = (int)NULL, |
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26 | socket_accept_fd = (int)NULL, |
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27 | sockaddr_in_size = sizeof(struct sockaddr_in), |
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28 | err = (int)NULL; |
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29 | |
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30 | /* Internet socket address stuct */ |
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31 | struct sockaddr_in server_addr, |
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32 | accept_addr; |
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33 | |
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34 | struct client * clients = (struct client *) NULL, |
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35 | * current = (struct client *) NULL; |
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36 | |
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37 | pthread_t threads; |
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38 | |
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39 | /* clear screen */ |
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40 | system(__CLEAR_SCREEN__); |
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41 | signal(SIGPIPE, my_shutdown); |
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42 | |
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43 | while ( (c = getopt(argc, argv, ":vp:")) != -1 ) |
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44 | { |
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45 | switch ( c ) |
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46 | { |
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47 | case 'p': |
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48 | if ( socket_server_port = strtol(optarg, 0, 10) == 0 ) |
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49 | { |
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50 | fprintf(stderr, "Option -%c requires a valid port and '%s' isn't valid\n", optopt, optarg); |
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51 | ++errflg; |
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52 | } |
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53 | break; |
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54 | case 'v': |
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55 | verbose = 1; |
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56 | break; |
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57 | case ':': |
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58 | /* -f or -o without operand */ |
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59 | fprintf(stderr, "Option -%c requires an operand\n", optopt); |
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60 | ++errflg; |
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61 | break; |
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62 | case '?': |
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63 | fprintf(stderr, "Unrecognized option: -%c\n", optopt); |
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64 | ++errflg; |
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65 | } |
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66 | } |
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67 | if ( errflg ) |
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68 | { |
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69 | fprintf(stderr, "usage: . . . \n\n"); |
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70 | exit(2); |
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71 | } |
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72 | //exit(0); |
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73 | |
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74 | /*if ( argc != 2 || (socket_server_port = strtol(argv[1], 0, 10)) == 0 ) |
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75 | usage();*/ |
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76 | |
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77 | /* make a socket */ |
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78 | socket_server_fd = socket(AF_INET, SOCK_STREAM, 0); |
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79 | if ( socket_server_fd == __SOCKET_ERROR__ ) |
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80 | { |
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81 | printf("\nCould not make a socket\n"); |
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82 | return 0; |
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83 | } |
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84 | |
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85 | bzero((char *) &server_addr, sockaddr_in_size); |
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86 | bzero((char *) &accept_addr, sockaddr_in_size); |
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87 | |
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88 | if ( !socket_server_port ) |
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89 | socket_server_port = __DEFAULT_OPEN_PORT__; |
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90 | |
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91 | /* fill address struct */ |
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92 | server_addr.sin_addr.s_addr = INADDR_ANY; |
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93 | server_addr.sin_port = htons(socket_server_port); |
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94 | server_addr.sin_family = AF_INET; |
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95 | bzero(&(server_addr.sin_zero), 8); |
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96 | |
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97 | if ( __DEBUG__ || verbose ) |
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98 | printf("\nBinding to port %d...\n", socket_server_port); |
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99 | |
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100 | /* bind to a port */ |
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101 | if ( bind(socket_server_fd, (struct sockaddr *)&(server_addr), sizeof(server_addr)) == __SOCKET_ERROR__ ) |
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102 | { |
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103 | printf("\nCould not connect to host\n"); |
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104 | exit(1); |
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105 | } |
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106 | |
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107 | /* get port number */ |
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108 | getsockname(socket_server_fd, (struct sockaddr *)&(server_addr), (socklen_t *) &(sockaddr_in_size)); |
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109 | if ( __DEBUG__ || verbose ) |
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110 | { |
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111 | printf("\nopened socket as fd (%d) on port (%d) for stream i/o\n", socket_server_fd, ntohs(server_addr.sin_port)); |
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112 | |
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113 | printf("Server\n\ |
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114 | sin_family = %d\n\ |
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115 | sin_addr.s_addr = %d\n\ |
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116 | sin_port = %d\n" |
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117 | , server_addr.sin_family |
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118 | , server_addr.sin_addr.s_addr |
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119 | , ntohs(server_addr.sin_port) |
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120 | ); |
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121 | printf("\nMaking a listen queue of %d elements", __QUEUE_SIZE__); |
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122 | } |
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123 | |
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124 | /* establish listen queue */ |
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125 | if ( listen(socket_server_fd, __QUEUE_SIZE__) == __SOCKET_ERROR__ ) |
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126 | { |
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127 | printf("\nCould not listen\n"); |
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128 | return 0; |
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129 | } |
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130 | |
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131 | for ( ; ; ) |
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132 | { |
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133 | if ( __DEBUG__ || verbose ) |
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134 | puts("\nWaiting for a connection\n"); |
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135 | |
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136 | /* get the connected socket */ |
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137 | socket_accept_fd = accept(socket_server_fd, (struct sockaddr *) &(accept_addr), (socklen_t *) &(sockaddr_in_size)); |
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138 | fcntl(socket_accept_fd, F_SETFL, fcntl(socket_accept_fd, F_GETFL, 0) | O_NDELAY); |
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139 | |
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140 | if ( setsockopt(socket_accept_fd, SOL_SOCKET, SO_KEEPALIVE, &optval, optlen) < 0) |
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141 | { |
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142 | perror("setsockopt()"); |
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143 | exit(EXIT_FAILURE); |
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144 | } |
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145 | |
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146 | int val; |
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147 | val = 10; /* 10 sec before starting probes */ |
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148 | setsockopt (socket_accept_fd, SOL_TCP, TCP_KEEPIDLE, &val, sizeof (val)); |
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149 | val = 2; /* 2 probes max */ |
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150 | setsockopt (socket_accept_fd, SOL_TCP, TCP_KEEPCNT, &val, sizeof (val)); |
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151 | val = 5; /* 5 seconds between each probe */ |
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152 | setsockopt (socket_accept_fd, SOL_TCP, TCP_KEEPINTVL, &val, sizeof (val)); |
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153 | |
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154 | |
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155 | if ( socket_accept_fd > -1 ) |
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156 | { |
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157 | if ( clients == (struct client *) NULL ) |
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158 | current = clients; |
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159 | else |
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160 | while ( (current = clients->next) != (struct client *) NULL ); |
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161 | |
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162 | current = (struct client *) malloc(sizeof(struct client)); |
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163 | current->next = (struct client *) NULL; |
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164 | current->fd = socket_accept_fd; |
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165 | current->sockaddr = accept_addr; |
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166 | current->last = time(NULL); |
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167 | |
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168 | pthread_create(&(threads), NULL, handler, (void *) current); |
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169 | } |
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170 | puts("jah era #5"); |
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171 | } |
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172 | pthread_exit(NULL); |
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173 | } |
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174 | |
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175 | void * handler(void * pClient) |
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176 | { |
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177 | char buffer_client[__BUFFER_SIZE__], |
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178 | buffer_jabber[__BUFFER_SIZE__]; |
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179 | struct client * client = (struct client *) pClient; |
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180 | int i = 0, err; |
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181 | time_t last; |
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182 | |
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183 | char ip[46]; |
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184 | unsigned short port; |
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185 | inet_ntop(AF_INET, &(client->sockaddr.sin_addr), ip, sizeof (ip)); |
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186 | port = ntohs(client->sockaddr.sin_port); |
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187 | printf("\nGot a connection from %s, port %hu\n", ip, port); |
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188 | //fcntl( client->fd, F_SETFL, fcntl( client->fd, F_GETFL ) & ~O_NONBLOCK ); |
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189 | //printf(":::client %d\n\n\n", fcntl( client->fd, F_GETFL, 0)); |
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190 | //printf(":::client %d\n\n\n", fcntl( client->fd, F_SETFL, fcntl( client->fd, F_GETFL ) & ~O_NONBLOCK )); |
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191 | /*---------------------------------------------------*/ |
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192 | |
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193 | int jabber_fd = (int)NULL, |
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194 | jabber_port = (int)NULL, |
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195 | jabber_error = (int)NULL; |
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196 | |
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197 | struct sockaddr_in jabber_addr; |
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198 | |
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199 | jabber_port = __DEFAULT_JABBER_PORT__; |
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200 | //jabber_port = strtol(__DEFAULT_JABBER_PORT__, 0, 10); |
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201 | jabber_fd = socket(AF_INET, SOCK_STREAM, 0); |
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202 | fcntl(jabber_fd, F_SETFL, fcntl(jabber_fd, F_GETFL, 0) | O_NDELAY); |
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203 | |
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204 | jabber_addr.sin_family = AF_INET; |
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205 | inet_aton(__DEFAULT_JABBER_IP__, &jabber_addr.sin_addr); |
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206 | jabber_addr.sin_port = htons(jabber_port); |
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207 | |
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208 | jabber_error = connect(jabber_fd, (struct sockaddr *) &(jabber_addr), sizeof(jabber_addr)); |
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209 | |
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210 | last = time(NULL); |
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211 | int client_is_connected = -1; |
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212 | int jabber_is_connected = -1; |
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213 | int sockaddr_in_size = sizeof(struct sockaddr_in); |
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214 | while ( client_is_connected != 0 ) |
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215 | { |
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216 | puts("begin loop"); |
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217 | /* read from client */ |
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218 | puts("\tread - client"); |
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219 | bzero(buffer_client, __BUFFER_SIZE__); |
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220 | if ( (client_is_connected = read(client->fd, buffer_client, __BUFFER_SIZE__)) != 0 && strlen(buffer_jabber) > 0 ) |
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221 | { |
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222 | puts("\twrite - jabber"); |
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223 | /* write in the client */ |
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224 | write(client->fd, buffer_jabber, strlen(buffer_jabber)); |
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225 | } |
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226 | |
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227 | /*if ( client_is_connected == 0 ) |
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228 | break;*/ |
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229 | |
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230 | /* read from jabber service */ |
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231 | puts("\tread - jabber"); |
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232 | bzero(buffer_jabber, __BUFFER_SIZE__); |
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233 | if ( (jabber_is_connected = read(jabber_fd, buffer_jabber, __BUFFER_SIZE__)) && strlen(buffer_client) > 0 ) |
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234 | { |
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235 | puts("\twrite - client"); |
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236 | /* write in the jabber service */ |
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237 | write(jabber_fd, buffer_client, strlen(buffer_client)); |
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238 | } |
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239 | |
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240 | if ( jabber_is_connected == 0 ) |
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241 | client_is_connected = jabber_is_connected; |
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242 | |
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243 | puts("end loop"); |
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244 | usleep(500000); |
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245 | } |
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246 | |
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247 | if ( close(jabber_fd) == __SOCKET_ERROR__ ) |
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248 | { |
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249 | printf("\nCould not close jabber socket\n"); |
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250 | return 0; |
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251 | } |
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252 | /*---------------------------------------------------*/ |
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253 | if ( close(client->fd) == __SOCKET_ERROR__ ) |
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254 | { |
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255 | printf("\nCould not close socket\n"); |
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256 | return 0; |
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257 | } |
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258 | |
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259 | fflush(stdin); |
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260 | fflush(stdout); |
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261 | free(client); |
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262 | pthread_exit(NULL); |
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263 | } |
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