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12 lines
213 B
C

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#include <unistd.h>
#include <fcntl.h>
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#include "open.h"
#ifndef O_NDELAY
#define O_NDELAY 0
#endif
int open_excl(const char *filename) {
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return open(filename,O_WRONLY|O_NDELAY|O_TRUNC|O_CREAT|O_EXCL,0600);
}