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Numerous msvcrt/crt fixes; support variable resolution

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This commit is contained in:
Luke Street
2025-11-03 21:46:29 -07:00
parent b62b01ffca
commit 73b1ffb8d6
6 changed files with 272 additions and 160 deletions
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30
dll/crt.cpp
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@@ -15,6 +15,25 @@
#include <unistd.h>
#include <vector>
namespace {
FILE *mapToHostFile(_FILE *file) {
if (!file)
return nullptr;
switch (file->_file) {
case STDIN_FILENO:
return stdin;
case STDOUT_FILENO:
return stdout;
case STDERR_FILENO:
return stderr;
default:
return nullptr;
}
}
} // namespace
namespace crt {
int _commode = 0;
@@ -302,15 +321,18 @@ void *CDECL __acrt_iob_func(unsigned int index) {
return nullptr;
}
int CDECL_NO_CONV __stdio_common_vfprintf(unsigned long long options, FILE *stream, const char *format, void *locale,
va_list args) {
int CDECL_NO_CONV __stdio_common_vfprintf(unsigned long long options, _FILE *stream, const char *format, void *locale,
va_list args) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("__stdio_common_vfprintf(%llu, %p, %s, %p, %p)\n", options, stream, format, locale, args);
return vfprintf(stream, format, args);
FILE *hostFile = mapToHostFile(stream);
if (!hostFile)
return -1;
return vfprintf(hostFile, format, args);
}
int CDECL_NO_CONV __stdio_common_vsprintf(unsigned long long options, char *buffer, SIZE_T len, const char *format,
void *locale, va_list args) {
void *locale, va_list args) {
HOST_CONTEXT_GUARD();
DEBUG_LOG("__stdio_common_vsprintf(%llu, %p, %zu, %s, %p, ...)\n", options, buffer, len, format, locale);
if (!buffer || !format)