From 4349ce9456204374fb969268f3d34bcff0ee82b2 Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno@eressea.de>
Date: Thu, 15 Jan 2004 22:29:41 +0000
Subject: [PATCH] bugfix non-case-sensitive ct_find

---
 src/common/kernel/curse.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/common/kernel/curse.c b/src/common/kernel/curse.c
index d437a1e76..50583f91b 100644
--- a/src/common/kernel/curse.c
+++ b/src/common/kernel/curse.c
@@ -46,6 +46,7 @@
 #include <limits.h>
 #include <assert.h>
 #include <math.h>
+#include <ctype.h>
 
 /* spells includes */
 #include <spells/regioncurse.h>
@@ -228,10 +229,22 @@ typedef struct cursetype_list {
 #define CMAXHASH 63
 cursetype_list * cursetypes[CMAXHASH];
 
+static char * 
+strlower(const char * str)
+{
+  static char result[128];
+  char * pos = result;
+  while (*str) {
+    *pos++ = (char)tolower(*(unsigned char*)str++);
+  }
+  *pos=0;
+  return result;
+}
+
 void
 ct_register(const curse_type * ct)
 {
-  unsigned int hash = hashstring(ct->cname) % CMAXHASH;
+  unsigned int hash = hashstring(strlower(ct->cname)) % CMAXHASH;
 	cursetype_list ** ctlp = &cursetypes[hash];
 	while (*ctlp) {
 		cursetype_list * ctl = *ctlp;
@@ -245,7 +258,8 @@ ct_register(const curse_type * ct)
 const curse_type *
 ct_find(const char *c)
 {
-  unsigned int hash = hashstring(c)  % CMAXHASH;
+  char * lower = strlower(c);
+  unsigned int hash = hashstring(lower)  % CMAXHASH;
 	cursetype_list * ctl = cursetypes[hash];
 	while (ctl) {
 		int k = min(strlen(c), strlen(ctl->type->cname));