diff options
Diffstat (limited to 'openssl/crypto/comp/comp_lib.c')
-rw-r--r-- | openssl/crypto/comp/comp_lib.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/openssl/crypto/comp/comp_lib.c b/openssl/crypto/comp/comp_lib.c new file mode 100644 index 00000000..b60ae371 --- /dev/null +++ b/openssl/crypto/comp/comp_lib.c @@ -0,0 +1,72 @@ +#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=(COMP_CTX *)OPENSSL_malloc(sizeof(COMP_CTX))) == NULL) + { + /* ZZZZZZZZZZZZZZZZ */ + return(NULL); + } + memset(ret,0,sizeof(COMP_CTX)); + ret->meth=meth; + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) + { + OPENSSL_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); + + OPENSSL_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) + { + /* ZZZZZZZZZZZZZZZZZ */ + 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) + { + /* ZZZZZZZZZZZZZZZZZ */ + return(-1); + } + ret=ctx->meth->expand(ctx,out,olen,in,ilen); + if (ret > 0) + { + ctx->expand_in+=ilen; + ctx->expand_out+=ret; + } + return(ret); + } |