Moved crc32 function here from misc.c.

src/hash/crc32.c

@@ -35,6 +35,9 @@
  * Note: If this box doesn't appear square, then you need to fix your tabs.	*
  ****************************************************************************/
 
+#include <string.h>	/* strlen */
+#include "crc32.h"
+
 long crc32tbl[]={	/* CRC polynomial 0xedb88320 */
 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
@@ -70,5 +73,21 @@ long crc32tbl[]={	/* CRC polynomial 0xedb88320 */
 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
 };
 
+/****************************************************************************/
+/* Returns CRC-32 of sequence of bytes (binary or ASCIIZ)					*/
+/* Pass len of 0 to auto-determine ASCIIZ string length						*/
+/* or non-zero for arbitrary binary data									*/
+/****************************************************************************/
+unsigned long crc32(char *buf, unsigned long len)
+{
+	unsigned long l,crc=0xffffffff;
+
+	if(len==0) 
+		len=strlen(buf);
+	for(l=0;l<len;l++)
+		crc=ucrc32(buf[l],crc);
+	return(~crc);
+}
+
 
 

src/hash/crc32.h

@@ -35,8 +35,13 @@
  * Note: If this box doesn't appear square, then you need to fix your tabs.	*
  ****************************************************************************/
 
+#ifndef _CRC32_H_
+#define _CRC32_H_
+
 extern long crc32tbl[];
 
 #define ucrc32(ch,crc) (crc32tbl[(crc^ch)&0xff]^(crc>>8))
 
+unsigned long crc32(char *buf, unsigned long len);
 
+#endif