IABSD.fr/src/lib/libcrypto/comp/comp_lib.c

Branch : - branch - master - tag -

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  Commit

• Author : tedu
  Date : 2014-11-03 16:58:28
  Hash : 9533c7d1
  Message : minor cleanup of zlib code. DSO is gone. ok jsing.

• lib/libcrypto/comp/comp_lib.c

• /* $OpenBSD: comp_lib.c,v 1.8 2014/11/03 16:58:28 tedu Exp $ */
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <openssl/objects.h>
  #include <openssl/comp.h>
  
  COMP_CTX *
  COMP_CTX_new(COMP_METHOD *meth)
  {
  	COMP_CTX *ret;
  
  	if ((ret = calloc(1, sizeof(COMP_CTX))) == NULL) {
  		return (NULL);
  	}
  	ret->meth = meth;
  	if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
  		free(ret);
  		ret = NULL;
  	}
  	return (ret);
  }
  
  void
  COMP_CTX_free(COMP_CTX *ctx)
  {
  	if (ctx == NULL)
  		return;
  
  	if (ctx->meth->finish != NULL)
  		ctx->meth->finish(ctx);
  
  	free(ctx);
  }
  
  int
  COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
      unsigned char *in, int ilen)
  {
  	int ret;
  
  	if (ctx->meth->compress == NULL) {
  		return (-1);
  	}
  	ret = ctx->meth->compress(ctx, out, olen, in, ilen);
  	if (ret > 0) {
  		ctx->compress_in += ilen;
  		ctx->compress_out += ret;
  	}
  	return (ret);
  }
  
  int
  COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
      unsigned char *in, int ilen)
  {
  	int ret;
  
  	if (ctx->meth->expand == NULL) {
  		return (-1);
  	}
  	ret = ctx->meth->expand(ctx, out, olen, in, ilen);
  	if (ret > 0) {
  		ctx->expand_in += ilen;
  		ctx->expand_out += ret;
  	}
  	return (ret);
  }