57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
// TCP Server test program
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#include <stdio.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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int main(int argc , char *argv[])
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{
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if(argc < 2) {
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printf("usage: tcp_server <port>\n");
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return 1;
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}
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int port = atoi(argv[1]);
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int socket_desc , client_sock , c , read_size;
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struct sockaddr_in server , client;
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char client_message[2000];
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socket_desc = socket(AF_INET , SOCK_STREAM , 0);
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if (socket_desc == -1) {
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printf("Could not create socket");
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}
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server.sin_family = AF_INET;
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server.sin_addr.s_addr = INADDR_ANY;
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server.sin_port = htons(port);
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printf("binding on port %d\n", port);
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if( bind(socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0) {
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perror("bind failed. Error");
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return 1;
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}
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printf("listening\n");
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listen(socket_desc , 3);
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puts("waiting to accept\n");
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c = sizeof(struct sockaddr_in);
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client_sock = accept(socket_desc, (struct sockaddr *)&client, (socklen_t*)&c);
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if (client_sock < 0)
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{
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perror("accept failed");
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return 1;
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}
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puts("connection accepted\n reading...\n");
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// RX
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int bytes_read = recv(client_sock , client_message , 2000 , 0);
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printf("Read (%d) bytes\n", bytes_read);
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for(int i=0; i<bytes_read; i++)
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{
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printf("%c", client_message[i]);
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}
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return 0;
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}
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