make compressed help code NOMMU- and NOFORK-friendly -

no forking anymore, bunzip2 unpack routine now does all it in memory.

1 files changed, 4 insertions, 3 deletions

diff --git a/libbb/crc32.c b/libbb/crc32.c
index 1e4a57e8a..acbc45827 100644
--- a/libbb/crc32.c
+++ b/libbb/crc32.c
@@ -16,14 +16,15 @@
 
 #include "libbb.h"
 
-uint32_t *crc32_filltable(int endian)
+uint32_t *crc32_filltable(uint32_t *crc_table, int endian)
 {
-
-        uint32_t *crc_table = xmalloc(256 * sizeof(uint32_t));
         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;
                 for (j = 8; j; j--) {