games/doom: fix config file never being loaded or saved (thanks qu7uux)

basedefault[], the default path to the config file, is never set and remains
blank, unless -config %s is used (cd d_main.c). when games/doom attempts to
open the file, it silently fails and no config file is ever read or written.
this patch sets basedefault to a file in whatever directory a valid wad is
found in I_IdentifyWAD().

1 files changed, 8 insertions, 8 deletions

diff --git a/sys/src/games/doom/d_main.c b/sys/src/games/doom/d_main.c
index 369d67650..f42b34e40 100644
--- a/sys/src/games/doom/d_main.c
+++ b/sys/src/games/doom/d_main.c
@@ -563,7 +563,7 @@ void D_AddFile (char *file)
 //
 void IdentifyVersion (void)
 {
-	char *wadfile;
+	char *wadfile, *slash;
 
 	if (M_CheckParm ("-shdev"))
 	{
@@ -615,35 +615,35 @@ void IdentifyVersion (void)
 		language = french;
 		printf("French version\n");
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("doom2.wad")) ) {
 		gamemode = commercial;
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("plutonia.wad")) ) {
 		gamemode = commercial;
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("tnt.wad")) ) {
 		gamemode = commercial;
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("doomu.wad")) ) {
 		gamemode = retail;
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("doom.wad")) ) {
 		gamemode = registered;
 		D_AddFile (wadfile);
-		return;
 	} else if ( (wadfile = I_IdentifyWAD("doom1.wad")) ) {
 		gamemode = shareware;
 		D_AddFile (wadfile);
-		return;
 	} else {
 		printf("Game mode indeterminate.\n");
 		gamemode = indetermined;
+		return;
 	}
+	strncpy(basedefault, wadfile, sizeof(basedefault)-5);
+	basedefault[sizeof(basedefault)-5] = '\0';
+	slash = strrchr(basedefault, '/');
+	if (slash++ == 0)
+		slash = basedefault;
+	strcpy(slash, "cfg");
 }
 
 //