Changeset 1765 in MondoRescue for branches/2.2.5/mindi-busybox/libbb/crc32.c

Timestamp:

Nov 4, 2007, 3:16:40 AM (16 years ago)

Author:

Bruno Cornec

Message:

Update to busybox 1.7.2

File:

• branches/2.2.5/mindi-busybox/libbb/crc32.c (modified) (2 diffs)

branches/2.2.5/mindi-busybox/libbb/crc32.c

@@ -7 +7 @@
  *
  * The following function creates a CRC32 table depending on whether
- * a big-endian (0x04c11db7) or little-endian (0xedb88320) CRC32 is 
+ * a big-endian (0x04c11db7) or little-endian (0xedb88320) CRC32 is
  * required. Admittedly, there are other CRC32 polynomials floating
  * around, but Busybox doesn't use them.
@@ -15 +15 @@
  */
 
-#include <stdio.h>
-#include <stdlib.h>
 #include "libbb.h"
 
-uint32_t *bb_crc32_filltable (int endian) {
-    
-    uint32_t *crc_table = xmalloc(256 * sizeof(uint32_t));
+uint32_t *crc32_filltable(uint32_t *crc_table, int endian)
+{
     uint32_t polynomial = endian ? 0x04c11db7 : 0xedb88320;
     uint32_t c;
     int i, j;
-    
+
+    if (!crc_table)
+        crc_table = xmalloc(256 * sizeof(uint32_t));
+
     for (i = 0; i < 256; i++) {
         c = endian ? (i << 24) : i;