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Remove the 'bool compress' parameter to lz77_compress.

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It stopped being useful in commit 20a9bd564, where I removed the only
code that called it. I've only just noticed that this part of the
mechanism is still lying around.
This commit is contained in:
Simon Tatham 2018-11-27 19:23:15 +00:00
parent 6329890046
commit 1586a41656
1 changed files with 4 additions and 5 deletions
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9
sshzlib.c
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@ -94,7 +94,7 @@ static int lz77_init(struct LZ77Context *ctx);
* instead call literal() for everything. * instead call literal() for everything.
*/ */
static void lz77_compress(struct LZ77Context *ctx, static void lz77_compress(struct LZ77Context *ctx,
const unsigned char *data, int len, bool compress); const unsigned char *data, int len);
/* /*
* Modifiable parameters. * Modifiable parameters.
@ -199,7 +199,7 @@ static void lz77_advance(struct LZ77InternalContext *st,
#define CHARAT(k) ( (k)<0 ? st->data[(st->winpos+k)&(WINSIZE-1)] : data[k] ) #define CHARAT(k) ( (k)<0 ? st->data[(st->winpos+k)&(WINSIZE-1)] : data[k] )
static void lz77_compress(struct LZ77Context *ctx, static void lz77_compress(struct LZ77Context *ctx,
const unsigned char *data, int len, bool compress) const unsigned char *data, int len)
{ {
struct LZ77InternalContext *st = ctx->ictx; struct LZ77InternalContext *st = ctx->ictx;
int i, distance, off, nmatch, matchlen, advance; int i, distance, off, nmatch, matchlen, advance;
@ -238,8 +238,7 @@ static void lz77_compress(struct LZ77Context *ctx,
deferchr = '\0'; deferchr = '\0';
while (len > 0) { while (len > 0) {
/* Don't even look for a match, if we're not compressing. */ if (len >= HASHCHARS) {
if (compress && len >= HASHCHARS) {
/* /*
* Hash the next few characters. * Hash the next few characters.
*/ */
@ -668,7 +667,7 @@ void zlib_compress_block(ssh_compressor *sc,
/* /*
* Do the compression. * Do the compression.
*/ */
lz77_compress(&comp->ectx, block, len, true); lz77_compress(&comp->ectx, block, len);
/* /*
* End the block (by transmitting code 256, which is * End the block (by transmitting code 256, which is