38 lines
850 B
C
38 lines
850 B
C
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <unistd.h> /* для вызова close() для сокета */
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int main(void)
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{
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int sock;
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struct sockaddr_in sa;
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int bytes_sent;
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const char *buffer = "Привет!";
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int buffer_length;
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buffer_length = strlen(buffer) + 1;
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sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (sock == -1) {
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printf("Ошибка создания сокета");
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return 0;
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}
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sa.sin_family = PF_INET;
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sa.sin_addr.s_addr = htonl(0x7F000001);
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sa.sin_port = htons(7654);
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bytes_sent = sendto(sock, buffer, strlen(buffer) + 1, 0, (struct sockaddr *)&sa, sizeof(struct sockaddr_in));
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if (bytes_sent < 0)
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printf("Ошибка отправки пакета: %s\n", strerror(errno));
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close(sock);
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return 0;
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}
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