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authorRob Austein <sra@hactrn.net>2006-08-02 19:38:09 +0000
committerRob Austein <sra@hactrn.net>2006-08-02 19:38:09 +0000
commit59c58be8c6498d8f2c43597b1068f47d78b8a78e (patch)
treee28258fb24338e885b043c66a2334ca3d8869bf2 /openssl/trunk/crypto/ecdh
parentd35e92660f57787e3e35add33c4f4d4f65254d5b (diff)
Update notes
svn path=/openssl/README; revision=136
Diffstat (limited to 'openssl/trunk/crypto/ecdh')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-29 05:56:00 +0000
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/objects.h>
#include <openssl/comp.h>

static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
	unsigned int olen, unsigned char *in, unsigned int ilen);
static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
	unsigned int olen, unsigned char *in, unsigned int ilen);

static COMP_METHOD rle_method={
	NID_rle_compression,
	LN_rle_compression,
	NULL,
	NULL,
	rle_compress_block,
	rle_expand_block,
	NULL,
	NULL,
	};

COMP_METHOD *COMP_rle(void)
	{
	return(&rle_method);
	}

static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
	     unsigned int olen, unsigned char *in, unsigned int ilen)
	{
	/* int i; */

	if (olen < (ilen+1))
		{
		/* ZZZZZZZZZZZZZZZZZZZZZZ */
		return(-1);
		}

	*(out++)=0;
	memcpy(out,in,ilen);
	return(ilen+1);
	}

static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
	     unsigned int olen, unsigned char *in, unsigned int ilen)
	{
	int i;

	if (olen < (ilen-1))
		{
		/* ZZZZZZZZZZZZZZZZZZZZZZ */
		return(-1);
		}

	i= *(in++);
	if (i == 0)
		{
		memcpy(out,in,ilen-1);
		}
	return(ilen-1);
	}