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looking over wide string funcs

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This commit is contained in:
rjkiv 2025-08-09 12:04:13 -07:00
parent 051039fdcb
commit c78171755d
1 changed files with 71 additions and 17 deletions
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88
dll/msvcrt.cpp
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@ -1,9 +1,11 @@
#include "common.h"
#include <clocale>
#include <cstdlib>
#include <cwchar>
#include <cwctype>
#include <stdlib.h>
#include <string>
#include "strutil.h"
typedef void (*_PVFV)();
typedef int (*_PIFV)();
@ -161,13 +163,15 @@ namespace msvcrt {
return 0;
}
char WIN_ENTRY *setlocale(int category, const char *locale){
DEBUG_LOG("STUB: setlocale(%d, %s)\n", category, locale);
return (char*)"C";
char* WIN_ENTRY setlocale(int category, const char *locale){
return std::setlocale(category, locale);
}
int WIN_ENTRY _wdupenv_s(wchar_t **buffer, size_t *numberOfElements, const wchar_t *varname){
if(!buffer || !varname) return -1;
std::string var_str = wideStringToString((const unsigned short*)varname, wcslen(varname));
DEBUG_LOG("_wdupenv_s: %s\n", var_str.c_str());
if(!buffer || !varname) return 22;
*buffer = nullptr;
if(numberOfElements) *numberOfElements = 0;
size_t varnamelen = wcslen(varname);
@ -178,14 +182,15 @@ namespace msvcrt {
wchar_t* value = cur + varnamelen + 1;
size_t value_len = wcslen(value);
*buffer = (wchar_t*)malloc((value_len + 1) * sizeof(wchar_t));
if(!*buffer) return -1;
wchar_t* copy = (wchar_t*)malloc((value_len + 1) * sizeof(wchar_t));
if(!copy) return 12;
for(int i = 0; i <= value_len; i++){
(*buffer)[i] = value[i];
}
std::wmemcpy(copy, value, value_len + 1);
*buffer = copy;
std::string value_str = wideStringToString((const unsigned short*)copy, wcslen(copy));
DEBUG_LOG("Value: %s\n", value_str.c_str());
// wscspy(*buffer, value); // y u no work
if(numberOfElements) *numberOfElements = value_len + 1;
return 0;
}
@ -270,30 +275,41 @@ namespace msvcrt {
}
int WIN_ENTRY wcscat_s(wchar_t *strDestination, size_t numberOfElements, const wchar_t *strSource){
if(!strDestination || !strSource || numberOfElements == 0) return -1;
std::string dst_str = wideStringToString((const unsigned short*)strDestination, wcslen(strDestination));
std::string src_str = wideStringToString((const unsigned short*)strSource, wcslen(strSource));
DEBUG_LOG("wcscat_s %s %d %s", dst_str.c_str(), numberOfElements, src_str.c_str());
if(!strDestination || !strSource || numberOfElements == 0) return 22;
size_t dest_len = wcslen(strDestination);
size_t src_len = wcslen(strSource);
if(dest_len + src_len >= numberOfElements) return -1;
for(int i = 0; i <= src_len; i++){
strDestination[dest_len + i] = strSource[i];
if(dest_len + src_len + 1 > numberOfElements){
if(strDestination && numberOfElements > 0) strDestination[0] = L'\0';
return 34;
}
std::wcscat(strDestination, strSource);
dst_str = wideStringToString((const unsigned short*)strDestination, wcslen(strDestination));
DEBUG_LOG(" --> %s\n", dst_str.c_str());
return 0;
}
wchar_t* WIN_ENTRY _wcsdup(const wchar_t *strSource){
std::string src_str = wideStringToString((const unsigned short*)strSource, wcslen(strSource));
DEBUG_LOG("_wcsdup: %s", src_str.c_str());
if(!strSource) return nullptr;
size_t strLen = wcslen(strSource);
wchar_t* dup = (wchar_t*)malloc((strLen + 1) * sizeof(wchar_t));
if(!dup) return nullptr;
for(int i = 0; i <= strLen; i++){
dup[i] = strSource[i];
}
std::string dst_str = wideStringToString((const unsigned short*)dup, wcslen(dup));
DEBUG_LOG(" --> %s\n", dst_str.c_str());
return dup;
}
@ -302,12 +318,49 @@ namespace msvcrt {
}
int WIN_ENTRY wcsncpy_s(wchar_t *strDest, size_t numberOfElements, const wchar_t *strSource, size_t count){
DEBUG_LOG("STUB: wcsncpy_s\n");
std::string src_str = wideStringToString((const unsigned short*)strSource, wcslen(strSource));
DEBUG_LOG("wcsncpy_s dest size %d, src str %s, src size %d", numberOfElements, src_str.c_str(), count);
if(!strDest || !strSource || numberOfElements == 0){
if(strDest && numberOfElements > 0) strDest[0] = L'\0';
return 1;
}
if(count == (size_t)-1) count = std::wcslen(strSource);
if(count >= numberOfElements){
strDest[0] = L'\0';
return 1;
}
std::wcsncpy(strDest, strSource, count);
strDest[count] = L'\0';
std::string dst_str = wideStringToString((const unsigned short*)strDest, wcslen(strDest));
DEBUG_LOG(" --> %s\n", dst_str.c_str());
return 0;
}
int WIN_ENTRY wcsncat_s(wchar_t *strDest, size_t numberOfElements, const wchar_t *strSource, size_t count){
DEBUG_LOG("STUB: wscncat_s\n");
std::string dst_str = wideStringToString((const unsigned short*)strDest, wcslen(strDest));
std::string src_str = wideStringToString((const unsigned short*)strSource, wcslen(strSource));
DEBUG_LOG("wscncat_s dest str %s, dest size %d, src str %s, src size %d", dst_str.c_str(), numberOfElements, src_str.c_str(), count);
if(!strDest || !strSource || numberOfElements == 0){
if(strDest && numberOfElements > 0) strDest[0] = L'\0';
return 1;
}
size_t dest_len = std::wcslen(strDest);
size_t src_len = (count == (size_t)-1) ? std::wcslen(strSource) : wcsnlen(strSource, count);
if(dest_len + src_len + 1 > numberOfElements){
strDest[0] = L'\0';
return 1;
}
std::wcsncat(strDest, strSource, src_len);
dst_str = wideStringToString((const unsigned short*)strDest, wcslen(strDest));
DEBUG_LOG(" --> %s\n", dst_str.c_str());
return 0;
}
@ -317,6 +370,7 @@ namespace msvcrt {
}
int WIN_ENTRY _wtoi(const wchar_t* str) {
DEBUG_LOG("_wtoi\n");
return (int)wcstol(str, nullptr, 10);
}