zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_md.c b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_md.c
new file mode 100644
index 0000000..fed4cf1
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/bio_md.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "internal/cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include "crypto/evp.h"
+#include "evp_local.h"
+#include "internal/bio.h"
+
+/*
+ * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest
+ */
+
+static int md_write(BIO *h, char const *buf, int num);
+static int md_read(BIO *h, char *buf, int size);
+static int md_gets(BIO *h, char *str, int size);
+static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int md_new(BIO *h);
+static int md_free(BIO *data);
+static long md_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp);
+
+static const BIO_METHOD methods_md = {
+ BIO_TYPE_MD,
+ "message digest",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
+ md_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
+ md_read,
+ NULL, /* md_puts, */
+ md_gets,
+ md_ctrl,
+ md_new,
+ md_free,
+ md_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_f_md(void)
+{
+ return &methods_md;
+}
+
+static int md_new(BIO *bi)
+{
+ EVP_MD_CTX *ctx;
+
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL)
+ return 0;
+
+ BIO_set_init(bi, 1);
+ BIO_set_data(bi, ctx);
+
+ return 1;
+}
+
+static int md_free(BIO *a)
+{
+ if (a == NULL)
+ return 0;
+ EVP_MD_CTX_free(BIO_get_data(a));
+ BIO_set_data(a, NULL);
+ BIO_set_init(a, 0);
+
+ return 1;
+}
+
+static int md_read(BIO *b, char *out, int outl)
+{
+ int ret = 0;
+ EVP_MD_CTX *ctx;
+ BIO *next;
+
+ if (out == NULL)
+ return 0;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
+
+ ret = BIO_read(next, out, outl);
+ if (BIO_get_init(b)) {
+ if (ret > 0) {
+ if (EVP_DigestUpdate(ctx, (unsigned char *)out,
+ (unsigned int)ret) <= 0)
+ return -1;
+ }
+ }
+ BIO_clear_retry_flags(b);
+ BIO_copy_next_retry(b);
+ return ret;
+}
+
+static int md_write(BIO *b, const char *in, int inl)
+{
+ int ret = 0;
+ EVP_MD_CTX *ctx;
+ BIO *next;
+
+ if ((in == NULL) || (inl <= 0))
+ return 0;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+ if ((ctx != NULL) && (next != NULL))
+ ret = BIO_write(next, in, inl);
+
+ if (BIO_get_init(b)) {
+ if (ret > 0) {
+ if (!EVP_DigestUpdate(ctx, (const unsigned char *)in,
+ (unsigned int)ret)) {
+ BIO_clear_retry_flags(b);
+ return 0;
+ }
+ }
+ }
+ if (next != NULL) {
+ BIO_clear_retry_flags(b);
+ BIO_copy_next_retry(b);
+ }
+ return ret;
+}
+
+static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+ EVP_MD_CTX *ctx, *dctx, **pctx;
+ const EVP_MD **ppmd;
+ EVP_MD *md;
+ long ret = 1;
+ BIO *dbio, *next;
+
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+
+ switch (cmd) {
+ case BIO_CTRL_RESET:
+ if (BIO_get_init(b))
+ ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL);
+ else
+ ret = 0;
+ if (ret > 0)
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_C_GET_MD:
+ if (BIO_get_init(b)) {
+ ppmd = ptr;
+ *ppmd = ctx->digest;
+ } else
+ ret = 0;
+ break;
+ case BIO_C_GET_MD_CTX:
+ pctx = ptr;
+ *pctx = ctx;
+ BIO_set_init(b, 1);
+ break;
+ case BIO_C_SET_MD_CTX:
+ if (BIO_get_init(b))
+ BIO_set_data(b, ptr);
+ else
+ ret = 0;
+ break;
+ case BIO_C_DO_STATE_MACHINE:
+ BIO_clear_retry_flags(b);
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ BIO_copy_next_retry(b);
+ break;
+
+ case BIO_C_SET_MD:
+ md = ptr;
+ ret = EVP_DigestInit_ex(ctx, md, NULL);
+ if (ret > 0)
+ BIO_set_init(b, 1);
+ break;
+ case BIO_CTRL_DUP:
+ dbio = ptr;
+ dctx = BIO_get_data(dbio);
+ if (!EVP_MD_CTX_copy_ex(dctx, ctx))
+ return 0;
+ BIO_set_init(b, 1);
+ break;
+ default:
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ }
+ return ret;
+}
+
+static long md_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
+{
+ long ret = 1;
+ BIO *next;
+
+ next = BIO_next(b);
+
+ if (next == NULL)
+ return 0;
+
+ switch (cmd) {
+ default:
+ ret = BIO_callback_ctrl(next, cmd, fp);
+ break;
+ }
+ return ret;
+}
+
+static int md_gets(BIO *bp, char *buf, int size)
+{
+ EVP_MD_CTX *ctx;
+ unsigned int ret;
+
+ ctx = BIO_get_data(bp);
+
+ if (size < ctx->digest->md_size)
+ return 0;
+
+ if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0)
+ return -1;
+
+ return (int)ret;
+}