libbb: commonalize a bit of little-endian CRC32 table generation code

function                                             old     new   delta
global_crc32_new_table_le                              -      11     +11
crc32_new_table_le                                     -       9      +9
inflate_unzip_internal                               560     556      -4
flash_eraseall_main                                  823     819      -4
unpack_xz_stream                                    2403    2394      -9
lzop_main                                            121     112      -9
gzip_main                                            187     178      -9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/5 up/down: 20/-35)            Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

4 files changed, 4 insertions, 4 deletions

diff --git a/archival/gzip.c b/archival/gzip.c
index e3dd79291..c5a1fe9b4 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -2239,7 +2239,7 @@ int gzip_main(int argc UNUSED_PARAM, char **argv)
         ALLOC(ush, G1.prev, 1L << BITS);
 
         /* Initialize the CRC32 table */
-        global_crc32_table = crc32_filltable(NULL, 0);
+        global_crc32_new_table_le();
 
         argv += optind;
         return bbunpack(argv, pack_gzip, append_ext, "gz");
diff --git a/archival/libarchive/decompress_gunzip.c b/archival/libarchive/decompress_gunzip.c
index c8245d736..edff7e0e5 100644
--- a/archival/libarchive/decompress_gunzip.c
+++ b/archival/libarchive/decompress_gunzip.c
@@ -1000,7 +1000,7 @@ inflate_unzip_internal(STATE_PARAM transformer_state_t *xstate)
         gunzip_bb = 0;
 
         /* Create the crc table */
-        gunzip_crc_table = crc32_filltable(NULL, 0);
+        gunzip_crc_table = crc32_new_table_le();
         gunzip_crc = ~0;
 
         error_msg = "corrupted data";
diff --git a/archival/libarchive/decompress_unxz.c b/archival/libarchive/decompress_unxz.c
index 0be85500c..8ae7a275b 100644
--- a/archival/libarchive/decompress_unxz.c
+++ b/archival/libarchive/decompress_unxz.c
@@ -52,7 +52,7 @@ unpack_xz_stream(transformer_state_t *xstate)
         IF_DESKTOP(long long) int total = 0;
 
         if (!global_crc32_table)
-                global_crc32_table = crc32_filltable(NULL, /*endian:*/ 0);
+                global_crc32_new_table_le();
 
         memset(&iobuf, 0, sizeof(iobuf));
         membuf = xmalloc(2 * BUFSIZ);
diff --git a/archival/lzop.c b/archival/lzop.c
index ba27aeff0..fef8cdba3 100644
--- a/archival/lzop.c
+++ b/archival/lzop.c
@@ -1148,6 +1148,6 @@ int lzop_main(int argc UNUSED_PARAM, char **argv)
         if (ENABLE_UNLZOP && applet_name[4] == 'o')
                 option_mask32 |= OPT_DECOMPRESS;
 
-        global_crc32_table = crc32_filltable(NULL, 0);
+        global_crc32_new_table_le();
         return bbunpack(argv, pack_lzop, make_new_name_lzop, /*unused:*/ NULL);
 }