diff options
| author | Pierre Humblet <phumblet@phumblet.no-ip.org> | 2004-08-28 05:37:27 +0400 |
|---|---|---|
| committer | Pierre Humblet <phumblet@phumblet.no-ip.org> | 2004-08-28 05:37:27 +0400 |
| commit | 2e41976b562f37a3a03372058798073563e09239 (patch) | |
| tree | 91eaf4d8215322f19ba9742a6f7daa0908d5f6a8 /winsup | |
| parent | 5796021e866211cc4661217ec37b234b334292d4 (diff) | |
2004-08-28 Pierre Humblet <pierre.humblet@ieee.org>
* syscalls.cc (ftruncate64): On 9x, call write with a zero length
to zero fill when the file is extended.
Diffstat (limited to 'winsup')
| -rw-r--r-- | winsup/cygwin/ChangeLog | 5 | ||||
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 7 |
2 files changed, 10 insertions, 2 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index a92166b22..c0a458131 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,8 @@ +2004-08-28 Pierre Humblet <pierre.humblet@ieee.org> + + * syscalls.cc (ftruncate64): On 9x, call write with a zero length + to zero fill when the file is extended. + 2004-08-24 Corinna Vinschen <corinna@vinschen.de> * syscalls.cc (link): Avoid compiler warning. diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 1b3e3c512..d928bd6e4 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -1676,7 +1676,7 @@ setmode (int fd, int mode) extern "C" int ftruncate64 (int fd, _off64_t length) { - int res = -1; + int res = -1, res_bug = 0; if (length < 0) set_errno (EINVAL); @@ -1693,10 +1693,13 @@ ftruncate64 (int fd, _off64_t length) _off64_t prev_loc = cfd->lseek (0, SEEK_CUR); cfd->lseek (length, SEEK_SET); + /* Fill the space with 0, if needed */ + if (wincap.has_lseek_bug ()) + res_bug = cfd->write (&res, 0); if (!SetEndOfFile (h)) __seterrno (); else - res = 0; + res = res_bug; /* restore original file pointer location */ cfd->lseek (prev_loc, SEEK_SET); |