ShuriZma
/
xenia-canary
mirror of https://github.com/xenia-canary/xenia-canary.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[Kernel] Fix wide-printf functions not processing %ws format correctly 

This would break strings like memory://%.*ws, because the %ws would set FF_IsWide, but FF_IsWide is actually treated as an "is opposite encoding" flag.
Since the function is already wide, that flag would make it think it's opposite encoding and it'd try reading the param as ASCII instead of Unicode...
This commit is contained in:
emoose 2020-01-10 22:55:19 +00:00 committed by illusion98
parent 086c28e55d
commit 811825afab
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/xenia/kernel/xboxkrnl/xboxkrnl_strings.cc
View File

@ -49,6 +49,9 @@ enum FormatFlags {
FF_IsWide = 1 << 9,
FF_IsSigned = 1 << 10,
FF_ForceLeadingZero = 1 << 11,
// IsWide gets used as an "is opposite encoding" flag, but this flag means
// it's definitely wide
FF_IsAlwaysWide = 1 << 12,
};
enum ArgumentSize {
@ -292,7 +295,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
state = FS_Type;
continue;
} else if (c == 'w') {
flags |= FF_IsWide;
flags |= (FF_IsWide | FF_IsAlwaysWide);
state = FS_Type;
continue;
} else if (c == 'I') {
@ -337,7 +340,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
// functions and with C in wprintf functions."
is_wide = false;
} else {
is_wide = ((flags & FF_IsWide) != 0) ^ wide;
is_wide = (((flags & FF_IsWide) != 0) ^ wide) || (flags & FF_IsAlwaysWide) != 0;
}
auto value = args.get32();
@ -552,7 +555,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
// functions and with S in wprintf functions."
is_wide = false;
} else {
is_wide = ((flags & (FF_IsWide)) != 0) ^ wide;
is_wide = (((flags & (FF_IsWide)) != 0) ^ wide) || (flags & FF_IsAlwaysWide) != 0;
}
int32_t length;