49 lines
979 B
C
49 lines
979 B
C
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/* https://rsdn.org/article/unix/sockets.xml */
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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int main()
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{
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int sock, listener;
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struct sockaddr_in addr;
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char buf[1024];
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int bytes_read;
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listener = socket(AF_INET, SOCK_STREAM, 0);
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if (listener < 0) {
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perror("socket");
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exit(1);
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}
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addr.sin_family = AF_INET;
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addr.sin_port = htons(3425);
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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if (bind(listener, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
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perror("bind");
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exit(2);
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}
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listen(listener, 1);
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while(1) {
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sock = accept(listener, NULL, NULL);
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if (sock < 0) {
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perror("accept");
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exit(3);
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}
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while(1) {
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bytes_read = recv(sock, buf, 1024, 0);
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if (bytes_read <= 0) break;
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send(sock, buf, bytes_read, 0);
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}
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close(sock);
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}
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return 0;
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}
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