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| author | Bernhard Reutner-Fischer | 2006-09-06 15:28:32 +0000 |
|---|---|---|
| committer | Bernhard Reutner-Fischer | 2006-09-06 15:28:32 +0000 |
| commit | 5d725462d44268f9a86030daaa6f6396d32f796c (patch) | |
| tree | 18a5c1df4fd3bb071bbbac70ece77cb9ef2cea05 /archival/libunarchive | |
| parent | e614eaf40d0b4baad9996e81bcd92ab950111eee (diff) | |
| download | busybox-5d725462d44268f9a86030daaa6f6396d32f796c.zip busybox-5d725462d44268f9a86030daaa6f6396d32f796c.tar.gz | |
- strip 399424 off the bss by making decompress_uncompress buffers config buffers.
Compile tested (too lazy to look for a small .Z on the net).
$ size busybox.old busybox
text data bss dec hex filename
859555 10232 645732 1515519 171fff busybox.old
859683 10232 246308 1116223 11083f busybox
$ make bloatcheck
function old new delta
uncompress 1036 1160 +124
inbuf 2116 4 -2112
outbuf 4100 4 -4096
htab 131072 - -131072
codetab 262144 - -262144
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/2 up/down: 124/-399424) Total: -399300 bytes
Diffstat (limited to 'archival/libunarchive')
| -rw-r--r-- | archival/libunarchive/decompress_uncompress.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/archival/libunarchive/decompress_uncompress.c b/archival/libunarchive/decompress_uncompress.c index 0c4ab6d..e294143 100644 --- a/archival/libunarchive/decompress_uncompress.c +++ b/archival/libunarchive/decompress_uncompress.c @@ -70,22 +70,12 @@ static int block_mode = BLOCK_MODE; /* user settable max # bits/code */ static int maxbits = BITS; -/* Input buffer */ -static unsigned char inbuf[IBUFSIZ + 64]; - -/* Output buffer */ -static unsigned char outbuf[OBUFSIZ + 2048]; - - -static unsigned char htab[HSIZE]; -static unsigned short codetab[HSIZE]; - #define htabof(i) htab[i] #define codetabof(i) codetab[i] #define tab_prefixof(i) codetabof(i) #define tab_suffixof(i) ((unsigned char *)(htab))[i] #define de_stack ((unsigned char *)&(htab[HSIZE-1])) -#define clear_htab() memset(htab, -1, sizeof(htab)) +#define clear_htab() memset(htab, -1, HSIZE) #define clear_tab_prefixof() memset(codetab, 0, 256); @@ -113,6 +103,12 @@ int uncompress(int fd_in, int fd_out) long int maxmaxcode; int n_bits; int rsize = 0; + RESERVE_CONFIG_UBUFFER(inbuf, IBUFSIZ + 64); + RESERVE_CONFIG_UBUFFER(outbuf, OBUFSIZ + 2048); + unsigned char htab[HSIZE]; + unsigned short codetab[HSIZE]; + memset(inbuf, 0, IBUFSIZ + 64); + memset(outbuf, 0, OBUFSIZ + 2048); insize = 0; @@ -160,7 +156,7 @@ int uncompress(int fd_in, int fd_out) posbits = 0; } - if (insize < (int) sizeof(inbuf) - IBUFSIZ) { + if (insize < (int) (IBUFSIZ + 64) - IBUFSIZ) { rsize = safe_read(fd_in, inbuf + insize, IBUFSIZ); insize += rsize; } @@ -286,5 +282,7 @@ int uncompress(int fd_in, int fd_out) write(fd_out, outbuf, outpos); } + RELEASE_CONFIG_BUFFER(inbuf); + RELEASE_CONFIG_BUFFER(outbuf); return 0; } |