minix/test/test14.c

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/* Test 14. unlinking an open file. */
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#define TRIALS 100
#define MAX_ERROR 4
char name[20] = {"TMP14."};
int subtest = 1;
#include "common.c"
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_PROTOTYPE(int main, (void));
_PROTOTYPE(void e, (int n));
_PROTOTYPE(void quit, (void));
int main()
{
int fd0, i, pid;
start(14);
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pid = getpid();
sprintf(&name[6], "%x", pid);
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for (i = 0; i < TRIALS; i++) {
if ( (fd0 = creat(name, 0777)) < 0) e(1);
if (write(fd0, name, 20) != 20) e(2);
if (unlink(name) != 0) e(3);
if (close(fd0) != 0) e(4);
}
fd0 = creat(name, 0777);
write(fd0, name, 20);
unlink(name);
quit();
return(-1); /* impossible */
}