mirror of
https://github.com/riba2534/TCP-IP-NetworkNote.git
synced 2026-02-02 17:48:55 +08:00
22 lines
556 B
C
22 lines
556 B
C
#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/socket.h>
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int main()
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{
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int fd1, fd2, fd3;
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//创建一个文件和两个套接字
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fd1 = socket(PF_INET, SOCK_STREAM, 0);
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fd2 = open("test.dat", O_CREAT | O_WRONLY | O_TRUNC);
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fd3 = socket(PF_INET, SOCK_DGRAM, 0);
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//输出之前创建的文件描述符的整数值
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printf("file descriptor 1: %d\n", fd1);
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printf("file descriptor 2: %d\n", fd2);
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printf("file descriptor 3: %d\n", fd3);
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close(fd1);
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close(fd2);
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close(fd3);
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return 0;
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} |