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https://framagit.org/bortzmeyer/echoping
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43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
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/*
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* Copyright (c) 1996 W. Richard Stevens. All rights reserved.
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* Permission to use or modify this software and its documentation only for
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* educational purposes and without fee is hereby granted, provided that
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* the above copyright notice appear in all copies. The author makes no
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* representations about the suitability of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*/
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#include "cliserv.h"
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int
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main(int argc, char *argv[]) /* T/TCP client */
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{
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struct sockaddr_in serv;
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char request[REQUEST], reply[REPLY];
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int sockfd, n;
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if (argc != 2)
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err_quit("usage: ttcpcli <IP address of server>");
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if ( (sockfd = socket(PF_INET, SOCK_STREAM, 0)) < 0)
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err_sys("socket error");
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memset(&serv, 0, sizeof(serv));
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serv.sin_family = AF_INET;
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serv.sin_addr.s_addr = inet_addr(argv[1]);
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serv.sin_port = htons(TCP_SERV_PORT);
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/* form request[] ... */
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if (sendto(sockfd, request, REQUEST, MSG_EOF,
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(SA) &serv, sizeof(serv)) != REQUEST)
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err_sys("sendto error");
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if ( (n = read_stream(sockfd, reply, REPLY)) < 0)
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err_sys("read error");
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/* process "n" bytes of reply[] ... */
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exit(0);
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}
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