Attachment 929364 Details for Bug 1058526 – test case for triggering tar problem

test case for triggering tar problem

openfstatclose.c (text/plain), 1.68 KB, created by Dick Snippe on 2014-08-21 21:37:22 UTC

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Creator: Dick Snippe

Created: 2014-08-21 21:37:22 UTC

Size: 1.68 KB

patch

obsolete

>#define _POSIX_C_SOURCE 200809L
>
>#include <stdio.h>
>#include <stdlib.h>
>#include <errno.h>
>
>#include <sys/types.h>
>#include <sys/stat.h>
>#include <fcntl.h>
>#include <unistd.h>
>
>#define MAXF 4096
>
>void create_and_stat_file(char *filename, struct stat *buf)
>{
>	int fd;
>
>	if ((fd = open(filename,  O_WRONLY|O_CREAT|O_EXCL, 0) ) == -1)
>	{ perror(filename); exit(1); }
>	if (fstat(fd, buf) == -1)
>	{ perror("fstat"); exit(1); }
>	if (close(fd) == -1)
>	{ perror("close"); exit(1); }
>}
>
>char *fname(char *base, int i, char *s, int len)
>{
>	snprintf(s, len, "%s.%03d", base, i);
>	return s;
>}
>
>int compare_stat(char *filename, struct stat buf1)
>{
>	struct stat buf2;
>
>	if (lstat(filename, &buf2) == -1)
>	{ perror("lstat"); exit(1); }
>
>	if (buf1.st_mtime != buf2.st_mtime ||
>		buf1.st_mtim.tv_nsec != buf2.st_mtim.tv_nsec)
>	{
>		printf("%s: %ld.%09ld != %ld.%09ld\n", filename,
>			buf1.st_mtime, buf1.st_mtim.tv_nsec,
>			buf2.st_mtime, buf2.st_mtim.tv_nsec);
>		return 1;
>	}
>	return 0;
>}
>
>int main(int argc, char *argv[])
>{
>	char *base="testfile", f[MAXF];
>	int i, nfiles=1000, mismatch=0;
>	struct stat *bufs;
>
>	switch(argc)
>	{
>		case 1: break;
>		case 2: nfiles=atoi(argv[1]); break;
>		default: printf("Usage %s [n]\n", argv[0]); exit(1);
>	}
>
>	if (!(bufs = (struct stat *) malloc(nfiles * sizeof(struct stat))))
>	{ perror("malloc"); exit(1); }
>
>	for (i=0; i<nfiles; i++)
>		create_and_stat_file(fname(base, i, f, MAXF), &bufs[i]);
>	for (i=0; i<nfiles; i++)
>		mismatch+=compare_stat(fname(base, i, f, MAXF), bufs[i]);
>	for (i=0; i<nfiles; i++)
>	{
>		if (unlink(fname(base, i, f, MAXF)) == -1)
>		{ perror("unlink"); exit(1); }
>	}
>
>	printf("%d/%d (%6.2f%%) mismatches\n", mismatch, nfiles,
>				100 * mismatch  / (double) nfiles);
>
>	return 0;
>}
>

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Attachments on bug 1058526: 929364