https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5b53633b5dd02adf7b2b00ac0b69906e4ea3ffe6
commit 5b53633b5dd02adf7b2b00ac0b69906e4ea3ffe6 Author: Corinna Vinschen <[email protected]> AuthorDate: Wed Aug 9 16:56:02 2023 +0200 Commit: Corinna Vinschen <[email protected]> CommitDate: Wed Aug 9 16:56:02 2023 +0200 Cygwin: clipboard: Only SEEK_SET and SEEK_CUR are supported Make sure of that, especially given the addition of SEEK_DATA and SEEK_HOLE. Signed-off-by: Corinna Vinschen <[email protected]> Diff: --- winsup/cygwin/fhandler/clipboard.cc | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/winsup/cygwin/fhandler/clipboard.cc b/winsup/cygwin/fhandler/clipboard.cc index fe3545bf55c0..376d43440749 100644 --- a/winsup/cygwin/fhandler/clipboard.cc +++ b/winsup/cygwin/fhandler/clipboard.cc @@ -322,6 +322,13 @@ fhandler_dev_clipboard::lseek (off_t offset, int whence) * On writes we use this to decide how to write - empty and write, or open, copy, empty * and write */ + if (whence == SEEK_CUR) + return 0; + if (whence != SEEK_SET) + { + set_errno (EINVAL); + return -1; + } pos = offset; /* treat seek like rewind */ if (membuffer)
