Hi!
I just found a strange problem when using find on a FAT drive. I got: "find: .\tmp changed during execution of find"
OK, I analyzed the problem a bit and found that lstat can give different inode numbers on fat, see the attached testcase.
To test this you have to have a directory called tmp in your current working directory.
On a FAT drive you get: $ /tmp/lstat_test.exe Checking pathname: .\tmp cur_stat_buf.st_ino: -1375632239 stat_buf.st_ino: 802199907 Error Inode numbers are different!
Bug or feature?
Volker
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#include <sys/types.h> #include <sys/stat.h> #include <errno.h>
int
main (int argc, char **argv)
{
char pathname[]=".\\tmp";
long a,b;
struct stat stat_buf, cur_stat_buf;
/* get &stat_buf */
lstat (pathname, &stat_buf);
if (chdir (pathname) < 0)
{
printf("Errno: %d Path: %s\n", errno, pathname);
return;
}
/* get &cur_stat_buf. Should be the same as stat_buf. */
if (lstat (".", &cur_stat_buf) != 0)
printf("Errno: %d Path: %s\n", errno, pathname);
/* Use a and b intsead of the variables, otherwise you get strange
results with printf. */
a = cur_stat_buf.st_ino;
b = stat_buf.st_ino;
printf("Checking pathname: %s\ncur_stat_buf.st_ino: %d\nstat_buf.st_ino:
%d\n",pathname, a, b );
if (cur_stat_buf.st_dev != stat_buf.st_dev ||
cur_stat_buf.st_ino != stat_buf.st_ino)
printf("Error Inode numbers are different!\n");
}
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