From 1ed6f23ad180e37cb3b6564f6a613197f05508e5 Mon Sep 17 00:00:00 2001
From: Henri Herscher <henri@oreka.org>
Date: Tue, 21 Jul 2009 19:03:50 +0000
Subject: SIP header parsing fix so that fields are searched in a case
 insensitive way, including the first character.

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@630 09dcff7a-b715-0410-9601-b79a96267cd0
---
 orkaudio/audiocaptureplugins/voip/VoIp.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/orkaudio/audiocaptureplugins/voip/VoIp.cpp b/orkaudio/audiocaptureplugins/voip/VoIp.cpp
index 909b3d1..285b620 100644
--- a/orkaudio/audiocaptureplugins/voip/VoIp.cpp
+++ b/orkaudio/audiocaptureplugins/voip/VoIp.cpp
@@ -126,6 +126,22 @@ void memToHex(unsigned char* input, size_t len, CStdString&output)
 	}
 }
 
+// Same as standard memchr but case insensitive
+inline char* memnchr(void *s, int c, size_t len)
+{
+	char lowerCase = tolower(c);
+	char upperCase = toupper(c);
+	char* stop = (char*)s + len;
+	for(char* ptr = (char*)s ; ptr < stop; ptr++)
+	{
+		if(*ptr == lowerCase || *ptr == upperCase)
+		{
+			return ptr;
+		}
+	}
+	return NULL;
+}
+
 static char* memFindStr(char* toFind, char* start, char* stop)
 {
 	for(char * ptr = start; (ptr<stop) && (ptr != NULL); ptr = (char *)memchr(ptr+1, toFind[0],(stop-ptr)))
@@ -141,7 +157,7 @@ static char* memFindStr(char* toFind, char* start, char* stop)
 // find the address that follows the given search string between start and stop pointers - case insensitive
 char* memFindAfter(char* toFind, char* start, char* stop)
 {
-	for(char * ptr = start; (ptr<stop) && (ptr != NULL); ptr = (char *)memchr(ptr+1, toFind[0],(stop - ptr)))
+	for(char * ptr = start; (ptr<stop) && (ptr != NULL); ptr = (char *)memnchr(ptr+1, toFind[0],(stop - ptr)))
 	{
 		if(ACE_OS::strncasecmp(toFind, ptr, strlen(toFind)) == 0)
 		{
-- 
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