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mvwasyncgetnstr now echos EOL
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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2014 Mike Becker. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | * |
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28 | */ |
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29 | |
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30 | #include <stdlib.h> |
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31 | #include <string.h> |
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32 | #include <fcntl.h> |
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33 | #include "network.h" |
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34 | |
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35 | #define new_socket() socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
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36 | |
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37 | int net_create(Server *server, char* port) { |
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38 | server->info = NULL; |
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39 | |
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40 | struct sockaddr_in addr; |
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41 | addr.sin_family = AF_INET; |
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42 | addr.sin_addr.s_addr = INADDR_ANY; |
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43 | addr.sin_port = htons(atoi(port)); |
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44 | |
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45 | server->fd = new_socket(); |
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46 | if (server->fd > -1) { |
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47 | int true = 1; |
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48 | setsockopt(server->fd, SOL_SOCKET, SO_REUSEADDR, &true, sizeof(int)); |
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49 | if (bind(server->fd, (struct sockaddr*)&addr, sizeof(addr))) { |
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50 | server->fd = -1; |
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51 | return 1; |
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52 | } else { |
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53 | return 0; |
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54 | } |
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55 | } else { |
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56 | return 1; |
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57 | } |
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58 | } |
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59 | |
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60 | int getaddrinfo_intrnl(char *host, char *port, struct addrinfo **info) { |
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61 | struct addrinfo hints; |
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62 | memset(&hints, 0, sizeof(hints)); |
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63 | hints.ai_socktype = SOCK_STREAM; |
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64 | hints.ai_protocol = IPPROTO_TCP; |
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65 | |
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66 | return getaddrinfo(host, port, &hints, info); |
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67 | } |
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68 | |
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69 | int net_find(Server *server, char *host, char* port) { |
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70 | memset(server, 0, sizeof(Server)); |
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71 | server->fd = -1; |
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72 | |
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73 | return getaddrinfo_intrnl(host, port, &(server->info)); |
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74 | } |
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75 | |
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76 | int net_listen(Server *server) { |
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77 | listen(server->fd, 1); |
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78 | Client* client = calloc(1, sizeof(Client)); |
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79 | client->fd = -1; |
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80 | server->client = client; |
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81 | |
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82 | client->fd = accept(server->fd, |
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83 | &(client->address), &(client->address_len)); |
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84 | |
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85 | return client->fd == -1; |
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86 | } |
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87 | |
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88 | int net_connect(Server *server) { |
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89 | |
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90 | Client* client = calloc(1, sizeof(Client)); |
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91 | client->fd = -1; |
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92 | server->fd = new_socket(); |
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93 | server->client = client; |
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94 | |
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95 | if (server->fd == -1) { |
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96 | return 1; |
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97 | } |
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98 | |
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99 | return connect(server->fd, server->info->ai_addr, server->info->ai_addrlen); |
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100 | } |
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101 | |
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102 | int net_destroy(Server *server) { |
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103 | if (server->info) { |
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104 | freeaddrinfo(server->info); |
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105 | } |
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106 | if (server->client) { |
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107 | shutdown(server->client->fd, SHUT_RDWR); |
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108 | free(server->client); |
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109 | } |
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110 | if (server->fd > -1) { |
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111 | return shutdown(server->fd, SHUT_RDWR); |
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112 | } |
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113 | |
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114 | return EXIT_SUCCESS; |
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115 | } |
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116 | |
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117 | void net_send_code(int socket, uint8_t code) { |
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118 | send(socket, &code, sizeof(uint8_t), 0); |
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119 | } |
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120 | |
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121 | void net_send_data(int socket, uint8_t code, void *data, size_t len) { |
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122 | uint8_t pkg[len+1]; |
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123 | pkg[0] = code; |
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124 | memcpy(pkg+1, data, len); |
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125 | send(socket, pkg, len+1, 0); |
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126 | } |
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127 | |
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128 | uint8_t net_recieve_code(int socket) { |
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129 | uint8_t code; |
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130 | recv(socket, &code, sizeof(uint8_t), 0); |
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131 | return code; |
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132 | } |
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133 | |
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134 | void net_recieve_data(int socket, void *data, size_t len) { |
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135 | recv(socket, data, len, 0); |
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136 | } |
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137 | |
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138 | int net_setnonblocking(int socket, _Bool nonblocking) { |
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139 | int opts = fcntl(socket, F_GETFL); |
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140 | if (opts < 0) { |
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141 | return 1; |
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142 | } |
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143 | |
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144 | if (nonblocking) { |
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145 | opts |= O_NONBLOCK; |
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146 | } else { |
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147 | opts &= ~O_NONBLOCK; |
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148 | } |
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149 | if (fcntl(socket, F_SETFL, opts) < 0) { |
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150 | return 1; |
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151 | } |
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152 | |
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153 | return 0; |
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154 | } |