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author | Corinna Vinschen <corinna@vinschen.de> | 2022-08-05 11:45:49 +0200 |
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committer | Corinna Vinschen <corinna@vinschen.de> | 2022-08-05 11:45:49 +0200 |
commit | d097a96e6e5319ab622d5d737c70b21e4a231bec (patch) | |
tree | 9cb5ad3d5af57c4114a8ffa314f9f98f329b2004 | |
parent | 249f42d07a447ceb6fe22db5a2570f913cb5b4e5 (diff) | |
download | newlib-d097a96e6e5319ab622d5d737c70b21e4a231bec.zip newlib-d097a96e6e5319ab622d5d737c70b21e4a231bec.tar.gz newlib-d097a96e6e5319ab622d5d737c70b21e4a231bec.tar.bz2 |
Cygwin: drop last usage of RtlCreateUnicodeStringFromAsciiz
This function is just bad. It really only works for ASCII
chars, everything else is broken after the conversion.
Introduce new helper function sys_mbstouni to replace
RtlCreateUnicodeStringFromAsciiz in hash_path_name.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
-rw-r--r-- | winsup/cygwin/ntdll.h | 3 | ||||
-rw-r--r-- | winsup/cygwin/path.cc | 6 | ||||
-rw-r--r-- | winsup/cygwin/wchar.h | 12 |
3 files changed, 18 insertions, 3 deletions
diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h index bdc1c1e..0f23108 100644 --- a/winsup/cygwin/ntdll.h +++ b/winsup/cygwin/ntdll.h @@ -1556,7 +1556,8 @@ extern "C" NTSTATUS RtlCreateAcl (PACL, ULONG, ULONG); PDEBUG_BUFFER RtlCreateQueryDebugBuffer (ULONG, BOOLEAN); NTSTATUS RtlCreateSecurityDescriptor (PSECURITY_DESCRIPTOR, ULONG); - BOOLEAN RtlCreateUnicodeStringFromAsciiz (PUNICODE_STRING, PCSTR); + /* Don't use this function! It's almost always wrong! */ + // BOOLEAN RtlCreateUnicodeStringFromAsciiz (PUNICODE_STRING, PCSTR); NTSTATUS RtlDeleteSecurityObject (PSECURITY_DESCRIPTOR *); NTSTATUS RtlDestroyQueryDebugBuffer (PDEBUG_BUFFER); NTSTATUS RtlDowncaseUnicodeString (PUNICODE_STRING, PUNICODE_STRING, BOOLEAN); diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc index b159b56..3e436dc 100644 --- a/winsup/cygwin/path.cc +++ b/winsup/cygwin/path.cc @@ -3686,9 +3686,11 @@ ino_t hash_path_name (ino_t hash, const char *name) { UNICODE_STRING uname; - RtlCreateUnicodeStringFromAsciiz (&uname, name); + tmp_pathbuf tp; + + tp.u_get (&uname); + sys_mbstouni (&uname, HEAP_NOTHEAP, name); ino_t ret = hash_path_name (hash, &uname); - RtlFreeUnicodeString (&uname); return ret; } diff --git a/winsup/cygwin/wchar.h b/winsup/cygwin/wchar.h index ff1d4f1..0484b27 100644 --- a/winsup/cygwin/wchar.h +++ b/winsup/cygwin/wchar.h @@ -92,9 +92,21 @@ sys_mbstowcs (wchar_t * dst, size_t dlen, const char *src, size_t sys_mbstowcs_alloc (wchar_t **, int, const char *, size_t = (size_t) -1); static inline size_t +sys_mbstouni (PUNICODE_STRING dst, int type, const char *src, + size_t nms = (size_t) -1) +{ + /* sys_mbstowcs returns length *excluding* trailing \0 */ + size_t len = sys_mbstowcs (dst->Buffer, type, src, nms); + dst->Length = len * sizeof (WCHAR); + dst->MaximumLength = dst->Length + sizeof (WCHAR); + return dst->Length; +} + +static inline size_t sys_mbstouni_alloc (PUNICODE_STRING dst, int type, const char *src, size_t nms = (size_t) -1) { + /* sys_mbstowcs returns length *including* trailing \0 */ size_t len = sys_mbstowcs_alloc (&dst->Buffer, type, src, nms); dst->MaximumLength = len * sizeof (WCHAR); dst->Length = dst->MaximumLength - sizeof (WCHAR); |