From 23eafd924a2df8b52d85afc6c448690d885bb784 Mon Sep 17 00:00:00 2001 From: Nathan Sanders Date: Fri, 10 Apr 2020 11:28:56 +0000 Subject: [PATCH] mingw: cope with the Isilon network file system On certain network filesystems (currently encountered with Isilon, but in theory more network storage solutions could be causing the same issue), when the directory in question is missing, `raceproof_create_file()` fails with an `ERROR_INVALID_PARAMETER` instead of an `ERROR_PATH_NOT_FOUND`. Since it is highly unlikely that we produce such an error by mistake (the parameters we pass are fairly benign), we can be relatively certain that the directory is missing in this instance. So let's just translate that error automagically. This fixes https://github.com/git-for-windows/git/issues/1345. Signed-off-by: Nathan Sanders Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- compat/mingw.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/compat/mingw.c b/compat/mingw.c index d14065d60e..0c71a223a9 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -460,8 +460,21 @@ static int mingw_open_append(wchar_t const *wfilename, int oflags, ...) handle = CreateFileW(wfilename, FILE_APPEND_DATA, FILE_SHARE_WRITE | FILE_SHARE_READ, NULL, create, FILE_ATTRIBUTE_NORMAL, NULL); - if (handle == INVALID_HANDLE_VALUE) - return errno = err_win_to_posix(GetLastError()), -1; + if (handle == INVALID_HANDLE_VALUE) { + DWORD err = GetLastError(); + + /* + * Some network storage solutions (e.g. Isilon) might return + * ERROR_INVALID_PARAMETER instead of expected error + * ERROR_PATH_NOT_FOUND, which results in an unknown error. If + * so, let's turn the error to ERROR_PATH_NOT_FOUND instead. + */ + if (err == ERROR_INVALID_PARAMETER) + err = ERROR_PATH_NOT_FOUND; + + errno = err_win_to_posix(err); + return -1; + } /* * No O_APPEND here, because the CRT uses it only to reset the