qbsp: trivial constification of a few strings/args

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>

qbsp/cmdlib.c

@@ -36,7 +36,7 @@
 
 
 char *
-copystring(char *s)
+copystring(const char *s)
 {
     char *b;
 
@@ -73,7 +73,7 @@ I_FloatTime(void)
 
 
 void
-DefaultExtension(char *path, char *extension)
+DefaultExtension(char *path, const char *extension)
 {
     char *src;
 

qbsp/file.c

@@ -31,7 +31,7 @@ LoadFile
 ==============
 */
 size_t
-LoadFile(char *filename, void **buf, bool nofail)
+LoadFile(const char *filename, void **buf, bool nofail)
 {
     size_t len;
     FILE *f;

qbsp/file.h

@@ -24,6 +24,6 @@
 
 #include <stdbool.h>
 
-size_t LoadFile(char *filename, void **buf, bool nofail);
+size_t LoadFile(const char *filename, void **buf, bool nofail);
 
 #endif

qbsp/globals.c

@@ -55,7 +55,7 @@ vec3_t vec3_origin = { 0, 0, 0 };
 // util.c
 FILE *logfile;
 
-char *rgszWarnings[cWarnings] = {
+const char *rgszWarnings[cWarnings] = {
     "No wad or _wad key exists in the worldmodel",
     "No valid WAD filenames in worldmodel",
     "Multiple info_player_start entities",
@@ -85,7 +85,7 @@ char *rgszWarnings[cWarnings] = {
     "line %d: Face with degenerate QuArK-style texture axes",
 };
 
-char *rgszErrors[cErrors] = {
+const char *rgszErrors[cErrors] = {
     "No leak node in WriteLeakNode",
     "Unknown option '%s'",
     "line %d: Entity key or value too long",

qbsp/map.c

@@ -627,7 +627,7 @@ PrintEntity(int iEntity)
 
 
 const char *
-ValueForKey(int iEntity, char *key)
+ValueForKey(int iEntity, const char *key)
 {
     epair_t *ep;
 
@@ -640,7 +640,7 @@ ValueForKey(int iEntity, char *key)
 
 
 void
-SetKeyValue(int iEntity, char *key, char *value)
+SetKeyValue(int iEntity, const char *key, const char *value)
 {
     epair_t *ep;
 
@@ -659,7 +659,7 @@ SetKeyValue(int iEntity, char *key, char *value)
 
 
 void
-GetVectorForKey(int iEntity, char *szKey, vec3_t vec)
+GetVectorForKey(int iEntity, const char *szKey, vec3_t vec)
 {
     const char *value;
     double v1, v2, v3;

qbsp/qbsp.h

@@ -174,12 +174,12 @@ typedef unsigned char byte;
 
 double I_FloatTime(void);
 
-void DefaultExtension(char *path, char *extension);
+void DefaultExtension(char *path, const char *extension);
 void StripExtension(char *path);
 void StripFilename(char *path);
 int IsAbsolutePath(const char *path);
 
-char *copystring(char *s);
+char *copystring(const char *s);
 
 //===== mathlib.h
 
@@ -634,9 +634,9 @@ void LoadMapFile(void);
 int FindMiptex(char *name);
 
 void PrintEntity(int iEntity);
-const char *ValueForKey(int iEntity, char *key);
-void SetKeyValue(int iEntity, char *key, char *value);
-void GetVectorForKey(int iEntity, char *szKey, vec3_t vec);
+const char *ValueForKey(int iEntity, const char *key);
+void SetKeyValue(int iEntity, const char *key, const char *value);
+void GetVectorForKey(int iEntity, const char *szKey, vec3_t vec);
 
 void WriteEntitiesToString(void);
 
@@ -659,8 +659,8 @@ void ExportDrawNodes(mapentity_t *ent, node_t *headnode);
 #define msgScreen	6
 #define msgPercent	7
 
-extern char *rgszWarnings[cWarnings];
-extern char *rgszErrors[cErrors];
+extern const char *rgszWarnings[cWarnings];
+extern const char *rgszErrors[cErrors];
 extern const int rgcMemSize[];
 
 extern void *AllocMem(int Type, int cSize, bool fZero);

qbsp/util.c

@@ -137,7 +137,7 @@ PrintMem
 void
 PrintMem(void)
 {
-    char *rgszMemTypes[] = {
+    const char *rgszMemTypes[] = {
 	"BSPEntity", "BSPPlane", "BSPTex", "BSPVertex", "BSPVis", "BSPNode",
 	"BSPTexinfo", "BSPFace", "BSPLight", "BSPClipnode", "BSPLeaf",
 	"BSPMarksurface", "BSPEdge", "BSPSurfedge", "BSPModel", "Mapface",