From: phk <phk@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Mon, 6 Aug 2007 09:19:20 +0000 (+0000)
Subject: Add piecemal crc32 function back, we will need it for the scatter/gather
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1291ff699d3c277994685750a88d8f2cf61f6fa5;p=varnish

Add piecemal crc32 function back, we will need it for the scatter/gather
hash string.


git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@1804 d4fa192b-c00b-0410-8231-f00ffab90ce4
---

diff --git a/varnish-cache/include/libvarnish.h b/varnish-cache/include/libvarnish.h
index 7022d3e4..6bac9eb9 100644
--- a/varnish-cache/include/libvarnish.h
+++ b/varnish-cache/include/libvarnish.h
@@ -42,6 +42,7 @@ void FreeArgv(char **argv);
 char **ParseArgv(const char *s, int comment);
 
 /* from libvarnish/crc32.c */
+uint32_t crc32(uint32_t crc, const void *p1, unsigned l);
 uint32_t crc32_l(const void *p1, unsigned l);
 
 /* from libvarnish/time.c */
diff --git a/varnish-cache/lib/libvarnish/crc32.c b/varnish-cache/lib/libvarnish/crc32.c
index c63cab62..8ea42553 100644
--- a/varnish-cache/lib/libvarnish/crc32.c
+++ b/varnish-cache/lib/libvarnish/crc32.c
@@ -82,14 +82,21 @@ static uint32_t crc32bits[] = {
 };
 
 uint32_t
-crc32_l(const void *p1, unsigned l)
+crc32(uint32_t crc, const void *p1, unsigned l)
 {
 	const unsigned char *p;
-	uint32_t crc;
-
-	crc = ~0U;
 
 	for (p = (const unsigned char*)p1; l-- > 0; p++)
 		crc = (crc >> 8) ^ crc32bits[(crc ^ *p) & 0xff];
+	return (crc);
+}
+
+uint32_t
+crc32_l(const void *p1, unsigned l)
+{
+	uint32_t crc;
+
+	crc = crc32(~0U, p1, l);
 	return (crc ^ ~0U);
 }
+