[linux] replace MSVC _strupr and _strlwr with custom toupr and tolwr

src/libs/common/include/defines.h

@@ -4,6 +4,7 @@
 #include "math3d.h"
 #include <cstdint>
 #include <cstring>
+#include <cctype>
 
 namespace TOREMOVE
 {
@@ -104,6 +105,28 @@ constexpr float PId4 = (PI / 4.0f);
 #undef SQR
 #endif
 
+inline char *toupr(char *str)
+{
+    char *result = str;
+    while (*str != '\0')
+    {
+        *str = toupper(*str);
+        str++;
+    }
+    return result;
+}
+
+inline char *tolwr(char *str)
+{
+    char *result = str;
+    while (*str != '\0')
+    {
+        *str = tolower(*str);
+        str++;
+    }
+    return result;
+}
+
 inline uint32_t F2DW(float f)
 {
     return *reinterpret_cast<uint32_t *>(&f);

src/libs/core/src/token.cpp

@@ -366,7 +366,7 @@ void TOKEN::LowCase()
 {
     if (pTokenData[0] == 0)
         return;
-    _strlwr(pTokenData);
+    tolwr(pTokenData);
 }
 
 const char *TOKEN::GetData()

src/libs/renderer/src/s_device.cpp

@@ -1351,7 +1351,7 @@ int32_t DX9RENDER::TextureCreate(const char *fname)
             strcpy_s(_fname, fname);
         }
 
-        _strupr(_fname);
+        toupr(_fname);
 
         const uint32_t hf = hash_string(_fname);
 
@@ -2925,7 +2925,7 @@ int32_t DX9RENDER::LoadFont(const char *fontName)
         strncpy_s(sDup, fontName, sizeof(sDup) - 1);
         sDup[sizeof(sDup) - 1] = 0;
     }
-    fontName = _strupr(sDup);
+    fontName = toupr(sDup);
     const uint32_t hashVal = hash_string(fontName);
 
     int32_t i;
@@ -2976,7 +2976,7 @@ bool DX9RENDER::UnloadFont(const char *fontName)
         strncpy_s(sDup, fontName, sizeof(sDup) - 1);
         sDup[sizeof(sDup) - 1] = 0;
     }
-    fontName = _strupr(sDup);
+    fontName = toupr(sDup);
     const uint32_t hashVal = hash_string(fontName);
 
     for (int i = 0; i < nFontQuantity; i++)
@@ -3029,7 +3029,7 @@ bool DX9RENDER::SetCurFont(const char *fontName)
         strncpy_s(sDup, fontName, sizeof(sDup) - 1);
         sDup[sizeof(sDup) - 1] = 0;
     }
-    fontName = _strupr(sDup);
+    fontName = toupr(sDup);
     const uint32_t hashVal = hash_string(fontName);
 
     for (int i = 0; i < nFontQuantity; i++)

src/libs/ship/src/ship_lights.cpp

@@ -182,7 +182,7 @@ void ShipLights::AddFlare(VAI_OBJBASE *pObject, bool bLight, MODEL *pModel, cons
     if (!label.name)
         return;
     strcpy_s(str, label.name);
-    _strlwr(str);
+    tolwr(str);
 
     aLights.push_back(ShipLight{});
     ShipLight *pL = &aLights.back();

src/libs/weather/src/stars.cpp

@@ -72,9 +72,9 @@ void Astronomy::STARS::Init(ATTRIBUTES *pAP)
             char str[2];
             str[0] = pAS->GetThisName()[0];
             str[1] = 0;
-            _strupr(str);
+            toupr(str);
             Spectr[str[0]] = pAS->GetAttributeAsDword();
-            _strlwr(str);
+            tolwr(str);
             Spectr[str[0]] = pAS->GetAttributeAsDword();
         }
     }