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authorAaron Lehmann2001-12-06 03:22:43 +0000
committerAaron Lehmann2001-12-06 03:22:43 +0000
commitb9df470c4d886f03b26d9277ec059130e6472f40 (patch)
tree065055425b665de749ec94e478da724e199f48a4 /archival/gzip.c
parent249f39a2650a1f002803b59c4be82ee98fca5652 (diff)
downloadbusybox-b9df470c4d886f03b26d9277ec059130e6472f40.zip
busybox-b9df470c4d886f03b26d9277ec059130e6472f40.tar.gz
Commit my improvement on Rodney Brown's patch to g(un)zip, decreasing
binary size.
Diffstat (limited to 'archival/gzip.c')
-rw-r--r--archival/gzip.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/archival/gzip.c b/archival/gzip.c
index df665c1..436393e 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -174,15 +174,6 @@ typedef int file_t; /* Do not use stdio */
#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
flush_outbuf();}
-/* Output a 16 bit value, lsb first */
-#define put_short(w) \
-{ if (outcnt < OUTBUFSIZ-2) { \
- outbuf[outcnt++] = (uch) ((w) & 0xff); \
- outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
- } else { \
- put_short_when_full(w); \
- } \
-}
/* Output a 32 bit value to the bit stream, lsb first */
#if 0
@@ -247,9 +238,6 @@ static int (*read_buf) (char *buf, unsigned size);
/* from util.c: */
static void flush_outbuf (void);
-static void put_short_when_full (ush);
-
-
/* lzw.h -- define the lzw functions.
* Copyright (C) 1992-1993 Jean-loup Gailly.
* This is free software; you can redistribute it and/or modify it under the
@@ -336,6 +324,19 @@ static int ofd; /* output file descriptor */
static unsigned insize; /* valid bytes in inbuf */
static unsigned outcnt; /* bytes in output buffer */
+
+/* Output a 16 bit value, lsb first */
+static void put_short(ush w)
+{
+ if (outcnt < OUTBUFSIZ-2) {
+ outbuf[outcnt++] = (uch) ((w) & 0xff);
+ outbuf[outcnt++] = (uch) ((ush)(w) >> 8);
+ } else {
+ put_byte((uch)((w) & 0xff));
+ put_byte((uch)((ush)(w) >> 8));
+ }
+}
+
/* ========================================================================
* Signal and error handler.
*/
@@ -1481,7 +1482,7 @@ static const extra_bits_t extra_blbits[BL_CODES]
* if we rely on DIST_BUFSIZE == LIT_BUFSIZE.
*/
#if LIT_BUFSIZE > INBUFSIZ
-error cannot overlay l_buf and inbuf
+#error cannot overlay l_buf and inbuf
#endif
#define REP_3_6 16
/* repeat previous bit length 3-6 times (2 bits of repeat count) */
@@ -2462,21 +2463,10 @@ static void set_file_type()
static ulg crc; /* crc on uncompressed file data */
static long header_bytes; /* number of bytes in gzip header */
-static void put_short_when_full(ush w)
-{
- put_byte((uch)((w) & 0xff));
- put_byte((uch)((ush)(w) >> 8));
-}
-
-static void put_short_function(ush n)
-{
- put_short(n);
-}
-
static void put_long(ulg n)
{
- put_short_function((n) & 0xffff);
- put_short_function(((ulg)(n)) >> 16);
+ put_short((n) & 0xffff);
+ put_short(((ulg)(n)) >> 16);
}
/* put_header_byte is used for the compressed output