85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
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#include <stdio.h>
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#include <sys/socket.h>
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#include "cwprotocol.h"
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/* Global variables */
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struct command_packet_format connect_packet = {CON, DEFAULT_CHANNEL};
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struct command_packet_format disconnect_packet = {DIS, 0};
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struct data_packet_format id_packet;
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struct data_packet_format rx_data_packet;
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struct data_packet_format tx_data_packet;
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int tx_sequence = 0, rx_sequence;
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int fd_socket;
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int prepare_id (struct data_packet_format *id_packet, char *id)
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{
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id_packet->command = DAT;
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id_packet->length = SIZE_DATA_PACKET_PAYLOAD;
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snprintf(id_packet->id, SIZE_ID, id, "%s");
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id_packet->sequence = 0;
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id_packet->n = 0;
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snprintf(id_packet->status, SIZE_ID, INTERFACE_VERSION);
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id_packet->a21 = 1; /* These magic numbers was provided by Les Kerr */
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id_packet->a22 = 755;
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id_packet->a23 = 65535;
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return 0;
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}
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int prepare_tx (struct data_packet_format *tx_packet, char *id)
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{
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int i;
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tx_packet->command = DAT;
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tx_packet->length = SIZE_DATA_PACKET_PAYLOAD;
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snprintf(tx_packet->id, SIZE_ID, id, "%s");
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tx_packet->sequence = 0;
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tx_packet->n = 0;
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for(i = 1; i < 51; i++)tx_packet->code[i] = 0;
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tx_packet->a21 = 0; /* These magic numbers was provided by Les Kerr */
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tx_packet->a22 = 755;
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tx_packet->a23 = 16777215;
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snprintf(tx_packet->status, SIZE_STATUS, "?");
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return 0;
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}
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// connect to server and send my id.
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void identifyclient(void)
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{
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tx_sequence++;
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id_packet.sequence = tx_sequence;
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send(fd_socket, &connect_packet, SIZE_COMMAND_PACKET, 0);
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send(fd_socket, &id_packet, SIZE_DATA_PACKET, 0);
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}
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int send_latch (void)
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{
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int i;
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tx_sequence++;
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tx_data_packet.sequence = tx_sequence;
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tx_data_packet.code[0] = -1;
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tx_data_packet.code[1] = 1;
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tx_data_packet.n = 2;
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for(i = 0; i < 5; i++) send(fd_socket, &tx_data_packet, SIZE_DATA_PACKET, 0);
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tx_data_packet.n = 0;
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return 0;
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}
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int send_unlatch (void)
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{
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int i;
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tx_sequence++;
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tx_data_packet.sequence = tx_sequence;
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tx_data_packet.code[0] = -1;
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tx_data_packet.code[1] = 2;
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tx_data_packet.n = 2;
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for(i = 0; i < 5; i++) send(fd_socket, &tx_data_packet, SIZE_DATA_PACKET, 0);
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tx_data_packet.n = 0;
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return 0;
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}
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