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author | Aaron Lehmann | 2001-12-06 03:22:43 +0000 |
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committer | Aaron Lehmann | 2001-12-06 03:22:43 +0000 |
commit | b9df470c4d886f03b26d9277ec059130e6472f40 (patch) | |
tree | 065055425b665de749ec94e478da724e199f48a4 /archival/gzip.c | |
parent | 249f39a2650a1f002803b59c4be82ee98fca5652 (diff) | |
download | busybox-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.c | 42 |
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 |