$OpenBSD: patch-src_savegame_c,v 1.1.1.1 2010/10/25 12:12:05 edd Exp $

Make sure the saves are in the user's home dir where they have write access

--- src/savegame.c.orig	Tue May 25 03:11:52 2010
+++ src/savegame.c	Sun Oct 24 23:11:23 2010
@@ -1,26 +1,50 @@
 // routines for handling save&load of savegames
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
 #include "keen.h"
 #include "savegame.fdh"
 
 #define SG_HEADERSIZE			8
 
-
 char game_save(int slot)
 {
 FILE *fp;
-char fname[20];
+char fname[KEEN_MAX_SAVENAME];
 int i;
+char *userhome;
+struct stat st;
 
 	// can't save game under certain circumstances
 	if (fade_in_progress()) return 1;
 	
-	
-	sprintf(fname, "savegame%d.dat", slot);
-		
+	userhome = getenv("HOME");
+	if (userhome == NULL) {
+		fprintf(stderr, "can't get $HOME\n");
+		return 1;
+	}
+
+	snprintf(fname, KEEN_MAX_SAVENAME, "%s/" KEEN_SAVE_DIR, userhome);
+	if (mkdir(fname, 0755) != 0) {
+		/* ok to fail so long as a dir */
+		stat(fname, &st);
+		if (! (st.st_mode & S_IFDIR)) {
+			perror(fname);
+			return 1;
+		}
+	}
+
+	snprintf(fname, KEEN_MAX_SAVENAME, 
+	    "%s/" KEEN_SAVE_DIR "/savegame%d.dat", userhome, slot);
+
 	lprintf("Saving game to %s\n", fname);
 	fp = fileopen(fname, "wb");
-	if (!fp) return 1;
+	if (!fp) {
+		perror(fname);	
+		return 1;
+	}
 	
 	fprintf(fp, "CKSAVE%c", SAVEGAMEVERSION);
 	fputc(IsBigEndian(), fp);
@@ -127,12 +151,19 @@ char custom = 0;
 char game_load(int slot)
 {
 FILE *fp;
-char fname[20];
+char fname[KEEN_MAX_SAVENAME];
 uchar episode, level, lives, iscustom;
 int i;
+char *userhome;
 
+	userhome = getenv("HOME");
+	if (userhome == NULL) {
+		fprintf(stderr, "can't get $HOME\n");
+		return 1;
+	}
 	
-	sprintf(fname, "savegame%d.dat", slot);
+	snprintf(fname, KEEN_MAX_SAVENAME,
+	    "%s/" KEEN_SAVE_DIR "/savegame%d.dat", userhome, slot);
 	
 	if (!IsValidSaveGame(fname))
 	{
@@ -210,8 +241,16 @@ int i;
 
 void DeleteSaveGame(int slot)
 {
-char fname[20];
+char fname[KEEN_MAX_SAVENAME];
+char *userhome;
 
-	sprintf(fname, "savegame%d.dat", slot);
+	userhome = getenv("HOME");
+	if (userhome == NULL) {
+		fprintf(stderr, "can't get $HOME\n");
+		return;
+	}
+
+	snprintf(fname, KEEN_MAX_SAVENAME,
+	    "%s/" KEEN_SAVE_DIR "/savegame%d.dat", userhome, slot);
 	remove(fname);	
 }