31 lines
486 B
C
31 lines
486 B
C
#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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int main(void)
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{
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int fd;
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fd = open("test.txt", O_CREAT | O_EXCL);
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if (fd == -1)
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perror("First open");
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close(fd);
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fd = open("test.txt", O_CREAT | O_EXCL);
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if (fd == -1)
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perror("Second open");
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close(fd);
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fd = open("test.txt", O_CREAT | O_EXCL);
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if (fd == -1)
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perror("Third open");
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close(fd);
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fd = open("test.txt", O_CREAT);
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if (fd == -1)
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perror("Fourth open");
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close(fd);
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return 0;
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}
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