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path: root/thirdparty/openssl/crypto/comp/comp_lib.c
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Diffstat (limited to 'thirdparty/openssl/crypto/comp/comp_lib.c')
-rw-r--r--thirdparty/openssl/crypto/comp/comp_lib.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/comp/comp_lib.c b/thirdparty/openssl/crypto/comp/comp_lib.c
new file mode 100644
index 0000000000..bd4eb7a1ab
--- /dev/null
+++ b/thirdparty/openssl/crypto/comp/comp_lib.c
@@ -0,0 +1,66 @@
+#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);
+}