From a8cf07d37b0063df888da82aed00babd1907ab7e Mon Sep 17 00:00:00 2001 From: Himal Date: Tue, 3 Jan 2023 12:07:16 +0000 Subject: [PATCH] Fix a potential problem in the BFD library when accessing the Windows' nul device driver. PR 29947 * bfdio.c (_bfd_real_fopen): Do not add a prefix to the Windows' nul device filename. --- bfd/ChangeLog | 6 ++++++ bfd/bfdio.c | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index a7d9845247a..91a73aca5e8 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2023-01-03 Himal + + PR 29947 + * bfdio.c (_bfd_real_fopen): Do not add a prefix to the Windows' + nul device filename. + 2023-01-03 Nick Clifton * po/fr.po: Updated French trabslation. diff --git a/bfd/bfdio.c b/bfd/bfdio.c index e9fa5bb012c..337d4a10b66 100644 --- a/bfd/bfdio.c +++ b/bfd/bfdio.c @@ -154,6 +154,11 @@ _bfd_real_fopen (const char *filename, const char *modes) wcscpy (fullPath, prefix); int prefixLen = sizeof(prefix) / sizeof(wchar_t); + + /* Do not add a prefix to the null device. */ + if (stricmp (filename, "nul") == 0) + prefixLen = 1; + wchar_t * fullPathOffset = fullPath + prefixLen - 1; GetFullPathNameW (partPath, fullPathWSize, fullPathOffset, lpFilePart); -- 2.30.2