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22 lines
524 B
C
22 lines
524 B
C
#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define fname __FILE__ ".tmp"
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int main (int argc __attribute__((__unused__)), char *argv[] __attribute__((__unused__))) {
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unlink(fname);
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int fd0 = open (fname, O_RDWR|O_CREAT|O_EXCL, 0777);
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assert(fd0>=0);
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int fd1 = open (fname, O_RDWR|O_CREAT|O_EXCL, 0777);
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assert(fd1==-1);
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assert(errno==EEXIST);
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return 0;
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}
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