Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

external/boringssl/crypto/x509/x509.c

@@ -0,0 +1,157 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/x509.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+
+/* |X509_R_UNSUPPORTED_ALGORITHM| is no longer emitted, but continue to define
+ * it to avoid downstream churn. */
+OPENSSL_DECLARE_ERROR_REASON(X509, UNSUPPORTED_ALGORITHM)
+
+int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, int version,
+                    int ptype, void *pval, uint8_t *penc, int penclen) {
+  uint8_t **ppenc = NULL;
+  if (version >= 0) {
+    if (!ASN1_INTEGER_set(priv->version, version)) {
+      return 0;
+    }
+  }
+
+  if (penc) {
+    int pmtype;
+    ASN1_OCTET_STRING *oct;
+
+    oct = ASN1_OCTET_STRING_new();
+    if (!oct) {
+      return 0;
+    }
+    oct->data = penc;
+    ppenc = &oct->data;
+    oct->length = penclen;
+    if (priv->broken == PKCS8_NO_OCTET) {
+      pmtype = V_ASN1_SEQUENCE;
+    } else {
+      pmtype = V_ASN1_OCTET_STRING;
+    }
+    ASN1_TYPE_set(priv->pkey, pmtype, oct);
+  }
+
+  if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval)) {
+    /* If call fails do not swallow 'enc' */
+    if (ppenc) {
+      *ppenc = NULL;
+    }
+    return 0;
+  }
+
+  return 1;
+}
+
+int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg, const uint8_t **pk, int *ppklen,
+                    X509_ALGOR **pa, PKCS8_PRIV_KEY_INFO *p8) {
+  if (ppkalg) {
+    *ppkalg = p8->pkeyalg->algorithm;
+  }
+
+  if (p8->pkey->type == V_ASN1_OCTET_STRING) {
+    p8->broken = PKCS8_OK;
+    if (pk) {
+      *pk = p8->pkey->value.octet_string->data;
+      *ppklen = p8->pkey->value.octet_string->length;
+    }
+  } else if (p8->pkey->type == V_ASN1_SEQUENCE) {
+    p8->broken = PKCS8_NO_OCTET;
+    if (pk) {
+      *pk = p8->pkey->value.sequence->data;
+      *ppklen = p8->pkey->value.sequence->length;
+    }
+  } else {
+    return 0;
+  }
+
+  if (pa) {
+    *pa = p8->pkeyalg;
+  }
+  return 1;
+}
+
+int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent) {
+  const uint8_t *s;
+  int i, n;
+
+  n = sig->length;
+  s = sig->data;
+  for (i = 0; i < n; i++) {
+    if ((i % 18) == 0) {
+      if (BIO_write(bp, "\n", 1) <= 0 ||
+          BIO_indent(bp, indent, indent) <= 0) {
+        return 0;
+      }
+    }
+    if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0) {
+      return 0;
+    }
+  }
+  if (BIO_write(bp, "\n", 1) != 1) {
+    return 0;
+  }
+
+  return 1;
+}