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commit 44926b7f9ff031c37be48b33c314e47e2f84ff9f
Author: Alexander Barton 
Date:   Mon Nov 12 22:39:57 2012 +0100

    Add a few casts, fix compiler warnings on NetBSD 5

    This fixes a few warnings of this type:
      XXX.c: In function 'AAA':
      XXX.c:YY: warning: array subscription has type 'char'

    Tested on NetBSD 5.0.2 with gcc 4.1.3.

diff --git a/src/ngircd/irc-login.c b/src/ngircd/irc-login.c

--- a/src/ngircd/irc-login.c
+++ b/src/ngircd/irc-login.c
@@ -443,7 +443,7 @@ IRC_USER(CLIENT * Client, REQUEST * Req)
 		   punctuation is allowed.*/
 		ptr = Req->argv[0];
 		while (*ptr) {
-			if (!isalnum(*ptr) &&
+			if (!isalnum((int)*ptr) &&
 			    *ptr != '+' && *ptr != '-' &&
 			    *ptr != '.' && *ptr != '_') {
 				Conn_Close(Client_Conn(Client), NULL,
diff --git a/src/tool/tool.c b/src/tool/tool.c

--- a/src/tool/tool.c
+++ b/src/tool/tool.c
@@ -84,7 +84,7 @@ ngt_UpperStr(char *String)

 	ptr = String;
 	while(*ptr) {
-		*ptr = toupper(*ptr);
+		*ptr = toupper((int)*ptr);
 		ptr++;
 	}
 	return String;
@@ -103,7 +103,7 @@ ngt_LowerStr(char *String)

 	ptr = String;
 	while(*ptr) {
-		*ptr = tolower(*ptr);
+		*ptr = tolower((int)*ptr);
 		ptr++;
 	}
 	return String;

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