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Message-ID: <41B43182.9AEE4F96@hot.pl>
Date: Mon, 06 Dec 2004 11:16:34 +0100
From: Jacek Trzmiel <sc0rp AT hot DOT pl>
MIME-Version: 1.0
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: find prints wrong file size for files >2GB
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Win2kSP4+patches, cygwin1.dll 1.5.11, findutils 4.1.7-4

Test case below.


$ cat >truncate.c <<EOF
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

int main(int argc, char **argv) {
   off_t size;
   char *endptr = argv[2];

   if (argc != 3) {
      fprintf(stderr, "usage: truncate path size\n");
      exit(1);
   }

   errno = 0;
   size = strtoull(argv[2], &endptr, 10);
   if (!endptr || endptr == argv[2] || *endptr || size < 0 ||
       (size == 0 && errno)) {
      fprintf(stderr, "truncate: invalid size\n");
      exit(1);
   }
   printf("truncating %s to %lld bytes\n", argv[1], size);

   if (truncate(argv[1], size)) {
      int saveerr = errno;
      perror("truncate");
      fprintf(stderr, "errno was %d\n", saveerr);
      exit(1);
   }
   exit(0);
}
EOF

$ g++ truncate.c -o truncate.exe
$ touch aaa
$ ./truncate.exe aaa 2000000000
truncating aaa to 2000000000 bytes

$ ls -l aaa
-rw-r--r--    1 sc0rp    None     2000000000 Dec  6 10:54 aaa

$ find ./aaa -printf "%10s  %p\n"
2000000000  ./aaa

$ ./truncate.exe aaa 3000000000
truncating aaa to 3000000000 bytes

$ ls -l aaa
-rw-r--r--    1 sc0rp    None     3000000000 Dec  6 10:54 aaa

$ find ./aaa -printf "%10s  %p\n"
18446744072414584320  ./aaa

$ ./truncate.exe aaa 4700000000
truncating aaa to 4700000000 bytes

$ ls -l aaa
-rw-r--r--    1 sc0rp    None     4700000000 Dec  6 10:54 aaa

$ find ./aaa -printf "%10s  %p\n"
 405032704  ./aaa


-- Jacek.

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