1 | //basic.c: |
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2 | |
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3 | #include "libroar.h" |
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4 | |
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5 | int roar_connect_raw (char * server) { |
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6 | char user_sock[80]; |
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7 | char * roar_server; |
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8 | int i; |
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9 | int port = 0; |
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10 | int fh = -1; |
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11 | |
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12 | if ( server == NULL && (roar_server = getenv("ROAR_SERVER")) != NULL ) |
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13 | server = roar_server; |
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14 | |
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15 | if ( server == NULL || *server == 0 ) { |
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16 | /* connect via defaults */ |
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17 | |
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18 | |
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19 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_SOCK_GLOBAL, 0)) != -1 ) |
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20 | return fh; |
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21 | |
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22 | snprintf(user_sock, 79, "%s/%s", getenv("HOME"), ROAR_DEFAULT_SOCK_USER); |
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23 | |
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24 | if ( (fh = roar_socket_connect(user_sock, 0)) != -1 ) |
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25 | return fh; |
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26 | |
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27 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_HOST, ROAR_DEFAULT_PORT)) != -1 ) |
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28 | return fh; |
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29 | |
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30 | } else { |
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31 | /* connect via (char*)server */ |
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32 | for (i = 0; server[i] != 0; i++) { |
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33 | if ( server[i] == ':' ) { |
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34 | port = atoi(server+i+1); |
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35 | server[i] = 0; |
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36 | break; |
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37 | } |
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38 | } |
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39 | |
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40 | if ( port ) { |
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41 | fh = roar_socket_connect(server, port); |
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42 | // restore the original string |
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43 | server[i] = ':'; |
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44 | } else { |
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45 | fh = roar_socket_connect(server, ROAR_DEFAULT_PORT); |
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46 | } |
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47 | } |
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48 | |
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49 | ROAR_DBG("roar_connect_raw(*) = %i", fh); |
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50 | |
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51 | return fh; |
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52 | } |
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53 | |
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54 | int roar_connect (struct roar_connection * con, char * server) { |
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55 | con->fh = roar_connect_raw(server); |
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56 | |
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57 | if ( con->fh == -1 ) |
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58 | return -1; |
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59 | |
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60 | return 0; |
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61 | } |
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62 | |
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63 | int roar_disconnect (struct roar_connection * con) { |
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64 | struct roar_message m; |
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65 | |
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66 | m.datalen = 0; |
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67 | m.stream = 0; |
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68 | m.cmd = ROAR_CMD_QUIT; |
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69 | |
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70 | roar_req(con, &m, NULL); |
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71 | |
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72 | close(con->fh); |
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73 | |
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74 | con->fh = -1; |
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75 | |
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76 | return 0; |
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77 | } |
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78 | |
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79 | int roar_identify (struct roar_connection * con, char * name) { |
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80 | struct roar_message mes; |
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81 | pid_t pid; |
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82 | int max_len; |
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83 | |
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84 | ROAR_DBG("roar_identify(*): try to identify myself..."); |
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85 | |
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86 | mes.cmd = ROAR_CMD_IDENTIFY; |
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87 | mes.stream = 0; |
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88 | mes.pos = 0; |
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89 | |
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90 | ROAR_DBG("roar_identify(*): name=%p", name); |
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91 | |
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92 | if ( name == NULL ) |
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93 | name = "libroar client"; |
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94 | |
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95 | ROAR_DBG("roar_identify(*): name=%p", name); |
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96 | |
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97 | max_len = strlen(name); |
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98 | ROAR_DBG("roar_identify(*): strlen(name) = %i", max_len); |
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99 | |
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100 | if ( max_len > (LIBROAR_BUFFER_MSGDATA - 5) ) |
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101 | max_len = LIBROAR_BUFFER_MSGDATA - 5; |
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102 | |
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103 | mes.datalen = 5 + max_len; |
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104 | mes.data[0] = 1; |
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105 | |
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106 | pid = getpid(); |
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107 | *(uint32_t*)(mes.data+1) = ROAR_HOST2NET32(pid); |
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108 | ROAR_DBG("roar_identify(*): pid = %i", pid); |
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109 | |
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110 | strncpy(mes.data+5, name, max_len); |
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111 | |
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112 | return roar_req(con, &mes, NULL); |
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113 | } |
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114 | |
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115 | #define _ROAR_MESS_BUF_LEN (1 /* version */ + 1 /* cmd */ + 2 /* stream */ + 4 /* pos */ + 2 /* datalen */) |
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116 | int roar_send_message (struct roar_connection * con, struct roar_message * mes, char * data) { |
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117 | char buf[_ROAR_MESS_BUF_LEN]; |
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118 | |
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119 | ROAR_DBG("roar_send_message(*): try to send an request..."); |
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120 | |
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121 | buf[0] = _ROAR_MESSAGE_VERSION; |
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122 | buf[1] = (unsigned char) mes->cmd; |
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123 | *(uint16_t*)(buf+2) = ROAR_HOST2NET16(mes->stream); |
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124 | *(uint32_t*)(buf+4) = ROAR_HOST2NET32(mes->pos); |
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125 | *(uint16_t*)(buf+8) = ROAR_HOST2NET16(mes->datalen); |
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126 | |
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127 | if ( write(con->fh, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) |
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128 | return -1; |
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129 | |
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130 | if ( mes->datalen != 0 ) |
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131 | if ( write(con->fh, data == NULL ? mes->data : data, mes->datalen) != mes->datalen ) |
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132 | return -1; |
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133 | |
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134 | ROAR_DBG("roar_send_message(*) = 0"); |
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135 | return 0; |
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136 | } |
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137 | |
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138 | int roar_recv_message (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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139 | char buf[_ROAR_MESS_BUF_LEN]; |
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140 | |
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141 | ROAR_DBG("roar_recv_message(*): try to get a response form the server..."); |
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142 | |
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143 | if ( data ) |
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144 | *data = NULL; |
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145 | |
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146 | if ( read(con->fh, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) |
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147 | return -1; |
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148 | |
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149 | ROAR_DBG("roar_recv_message(*): Got a header"); |
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150 | |
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151 | if ( buf[0] != _ROAR_MESSAGE_VERSION ) |
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152 | return -1; |
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153 | |
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154 | mes->cmd = (unsigned char)buf[1]; |
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155 | mes->stream = ROAR_NET2HOST16(*(uint16_t*)(buf+2)); |
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156 | mes->pos = ROAR_NET2HOST32(*(uint32_t*)(buf+4)); |
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157 | mes->datalen = ROAR_NET2HOST16(*(uint16_t*)(buf+8)); |
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158 | |
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159 | ROAR_DBG("roar_recv_message(*): command=%i(%s)", mes->cmd, |
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160 | mes->cmd == ROAR_CMD_OK ? "OK" : (mes->cmd == ROAR_CMD_ERROR ? "ERROR" : "UNKNOWN")); |
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161 | |
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162 | if ( mes->datalen == 0 ) { |
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163 | ROAR_DBG("roar_recv_message(*): no data in this pkg"); |
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164 | ROAR_DBG("roar_recv_message(*) = 0"); |
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165 | return 0; |
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166 | } |
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167 | |
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168 | if ( mes->datalen <= LIBROAR_BUFFER_MSGDATA ) { |
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169 | if ( read(con->fh, mes->data, mes->datalen) == mes->datalen ) { |
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170 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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171 | ROAR_DBG("roar_recv_message(*) = 0"); |
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172 | return 0; |
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173 | } |
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174 | return -1; |
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175 | } else { |
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176 | if ( data == NULL ) |
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177 | return -1; |
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178 | |
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179 | if ( (*data = malloc(mes->datalen)) == NULL ) |
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180 | return -1; |
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181 | |
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182 | if ( mes->datalen == 0 ) |
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183 | return 0; |
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184 | |
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185 | if ( read(con->fh, *data, mes->datalen) == mes->datalen ) { |
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186 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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187 | ROAR_DBG("roar_recv_message(*) = 0"); |
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188 | return 0; |
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189 | } |
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190 | return -1; |
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191 | } |
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192 | |
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193 | return -1; |
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194 | } |
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195 | |
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196 | int roar_req (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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197 | if ( roar_send_message(con, mes, data ? *data : NULL) != 0 ) |
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198 | return -1; |
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199 | |
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200 | if ( data ) |
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201 | free(*data); |
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202 | |
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203 | return roar_recv_message(con, mes, data); |
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204 | } |
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205 | |
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206 | int roar_debug_message_print (struct roar_message * mes) { |
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207 | if ( mes == NULL ) |
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208 | return -1; |
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209 | |
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210 | ROAR_DBG("roar_debug_message_print(*): Command: %i", mes->cmd); |
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211 | ROAR_DBG("roar_debug_message_print(*): Stream : %u", mes->stream); |
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212 | ROAR_DBG("roar_debug_message_print(*): Pos : %u", mes->pos); |
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213 | ROAR_DBG("roar_debug_message_print(*): Datalen: %i", mes->datalen); |
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214 | |
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215 | ROAR_DBG("roar_debug_message_print(*) = 0"); |
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216 | return 0; |
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217 | } |
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218 | |
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219 | int roar_debug_audio_info_print (struct roar_audio_info * info) { |
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220 | if ( info == NULL ) |
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221 | return -1; |
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222 | |
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223 | ROAR_DBG("roar_debug_audio_info_print(*): Rate : %i", info->rate); |
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224 | ROAR_DBG("roar_debug_audio_info_print(*): Channels: %i", info->channels); |
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225 | ROAR_DBG("roar_debug_audio_info_print(*): Bits : %i", info->bits); |
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226 | ROAR_DBG("roar_debug_audio_info_print(*): Codec : %i", info->codec); |
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227 | |
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228 | ROAR_DBG("roar_debug_audio_info_print(*) = 0"); |
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229 | return 0; |
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230 | } |
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231 | |
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232 | //ll |
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