33 lines
900 B
C
33 lines
900 B
C
#include "unp.h"
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int main(int argc, char ** argv)
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{
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int sockfd, n;
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char recvline[MAXLINE + 1];
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struct sockaddr_in servaddr;
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if(argc != 2)
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err_quit("usage: a.out <IPaddress>");
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if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
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err_sys("socket error");
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bzero(&servaddr, sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = htons(10013); // daytime server
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if(inet_pton(AF_INET, argv[1], &servaddr.sin_addr) <= 0)
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err_quit("inet_pton error for %s", argv[1]);
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if(connect(sockfd, (SA *)&servaddr, sizeof(servaddr)) < 0)
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err_sys("connect error");
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while((n = read(sockfd, recvline, MAXLINE)) > 0) {
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recvline[n] = 0; // null terminate
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if(fputs(recvline, stdout) == EOF)
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err_sys("fputs error");
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}
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if(n < 0)
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err_sys("read error");
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exit(0);
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} |