[PATCH 0/2] MR2351: kernel32: Fix ANSI formatting regressions.

[Gabriel Ivăncescu (＠insn)]

When len is zero (to obtain the length needed), nothing is written to `output`, even though the rewrite (correctly) uses WideCharToMultiByte on the output to determine the returned length. But this leads to reading garbage uninitialized values instead of the proper value.

[PATCH 1/2] kernel32: Fix GetNumberFormatA when input length is 0.

[Gabriel Ivăncescu]

From: Gabriel Ivăncescu

Fixes a regression introduced by b6bf69ef804146f81b803719a72d8c6afde184ba.

Signed-off-by: Gabriel Ivăncescu 
---
 dlls/kernel32/locale.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/locale.c b/dlls/kernel32/locale.c
index 16aa0bdd2aa..9d7b7924c77 100644
--- a/dlls/kernel32/locale.c
+++ b/dlls/kernel32/locale.c
@@ -455,9 +455,9 @@ int WINAPI GetNumberFormatA( LCID lcid, DWORD flags, const char *value,
         fmt.NegativeOrder = format->NegativeOrder;
         fmt.lpDecimalSep  = fmt_decimal;
         fmt.lpThousandSep = fmt_thousand;
-        ret = GetNumberFormatW( lcid, flags, input, &fmt, output, len );
+        ret = GetNumberFormatW( lcid, flags, input, &fmt, output, ARRAY_SIZE(output) );
     }
-    else ret = GetNumberFormatW( lcid, flags, input, NULL, output, len );
+    else ret = GetNumberFormatW( lcid, flags, input, NULL, output, ARRAY_SIZE(output) );

if (ret) ret = WideCharToMultiByte( cp, 0, output, -1, buffer, len, 0, 0 );
     return ret;

[PATCH 2/2] kernel32: Fix GetCurrencyFormatA when input length is 0.

[Gabriel Ivăncescu]

From: Gabriel Ivăncescu

Fixes a regression introduced by 42afb693b10dee9a06fcadb204560490a24f1754.

Signed-off-by: Gabriel Ivăncescu 
---
 dlls/kernel32/locale.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/locale.c b/dlls/kernel32/locale.c
index 9d7b7924c77..bf936c2e7f5 100644
--- a/dlls/kernel32/locale.c
+++ b/dlls/kernel32/locale.c
@@ -511,9 +511,9 @@ int WINAPI GetCurrencyFormatA( LCID lcid, DWORD flags, const char *value,
         fmt.lpDecimalSep = fmt_decimal;
         fmt.lpThousandSep = fmt_thousand;
         fmt.lpCurrencySymbol = fmt_symbol;
-        ret = GetCurrencyFormatW( lcid, flags, input, &fmt, output, len );
+        ret = GetCurrencyFormatW( lcid, flags, input, &fmt, output, ARRAY_SIZE(output) );
     }
-    else ret = GetCurrencyFormatW( lcid, flags, input, NULL, output, len );
+    else ret = GetCurrencyFormatW( lcid, flags, input, NULL, output, ARRAY_SIZE(output) );

if (ret) ret = WideCharToMultiByte( cp, 0, output, -1, buffer, len, 0, 0 );
     return ret;