Join the x509 and x509v3 directories

This has been long overdue.

Note that this does not join the X509 and X509V3 error modules, that
will be too many macro changes at this stage.

Fixes #8919

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8925)

1 files changed, 211 insertions, 0 deletions

diff --git a/crypto/x509/v3_prn.c b/crypto/x509/v3_prn.c
new file mode 100644
index 0000000000..2ef76c1b5b
--- /dev/null
+++ b/crypto/x509/v3_prn.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+/* X509 v3 extension utilities */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/conf.h>
+#include <openssl/x509v3.h>
+
+/* Extension printing routines */
+
+static int unknown_ext_print(BIO *out, const unsigned char *ext, int extlen,
+                             unsigned long flag, int indent, int supported);
+
+/* Print out a name+value stack */
+
+void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent,
+                        int ml)
+{
+    int i;
+    CONF_VALUE *nval;
+    if (!val)
+        return;
+    if (!ml || !sk_CONF_VALUE_num(val)) {
+        BIO_printf(out, "%*s", indent, "");
+        if (!sk_CONF_VALUE_num(val))
+            BIO_puts(out, "<EMPTY>\n");
+    }
+    for (i = 0; i < sk_CONF_VALUE_num(val); i++) {
+        if (ml) {
+            if (i > 0)
+                BIO_printf(out, "\n");
+            BIO_printf(out, "%*s", indent, "");
+        }
+        else if (i > 0)
+            BIO_printf(out, ", ");
+        nval = sk_CONF_VALUE_value(val, i);
+        if (!nval->name)
+            BIO_puts(out, nval->value);
+        else if (!nval->value)
+            BIO_puts(out, nval->name);
+#ifndef CHARSET_EBCDIC
+        else
+            BIO_printf(out, "%s:%s", nval->name, nval->value);
+#else
+        else {
+            int len;
+            char *tmp;
+            len = strlen(nval->value) + 1;
+            tmp = OPENSSL_malloc(len);
+            if (tmp != NULL) {
+                ascii2ebcdic(tmp, nval->value, len);
+                BIO_printf(out, "%s:%s", nval->name, tmp);
+                OPENSSL_free(tmp);
+            }
+        }
+#endif
+    }
+}
+
+/* Main routine: print out a general extension */
+
+int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
+                     int indent)
+{
+    void *ext_str = NULL;
+    char *value = NULL;
+    ASN1_OCTET_STRING *extoct;
+    const unsigned char *p;
+    int extlen;
+    const X509V3_EXT_METHOD *method;
+    STACK_OF(CONF_VALUE) *nval = NULL;
+    int ok = 1;
+
+    extoct = X509_EXTENSION_get_data(ext);
+    p = ASN1_STRING_get0_data(extoct);
+    extlen = ASN1_STRING_length(extoct);
+
+    if ((method = X509V3_EXT_get(ext)) == NULL)
+        return unknown_ext_print(out, p, extlen, flag, indent, 0);
+    if (method->it)
+        ext_str = ASN1_item_d2i(NULL, &p, extlen, ASN1_ITEM_ptr(method->it));
+    else
+        ext_str = method->d2i(NULL, &p, extlen);
+
+    if (!ext_str)
+        return unknown_ext_print(out, p, extlen, flag, indent, 1);
+
+    if (method->i2s) {
+        if ((value = method->i2s(method, ext_str)) == NULL) {
+            ok = 0;
+            goto err;
+        }
+#ifndef CHARSET_EBCDIC
+        BIO_printf(out, "%*s%s", indent, "", value);
+#else
+        {
+            int len;
+            char *tmp;
+            len = strlen(value) + 1;
+            tmp = OPENSSL_malloc(len);
+            if (tmp != NULL) {
+                ascii2ebcdic(tmp, value, len);
+                BIO_printf(out, "%*s%s", indent, "", tmp);
+                OPENSSL_free(tmp);
+            }
+        }
+#endif
+    } else if (method->i2v) {
+        if ((nval = method->i2v(method, ext_str, NULL)) == NULL) {
+            ok = 0;
+            goto err;
+        }
+        X509V3_EXT_val_prn(out, nval, indent,
+                           method->ext_flags & X509V3_EXT_MULTILINE);
+    } else if (method->i2r) {
+        if (!method->i2r(method, ext_str, out, indent))
+            ok = 0;
+    } else
+        ok = 0;
+
+ err:
+    sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
+    OPENSSL_free(value);
+    if (method->it)
+        ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
+    else
+        method->ext_free(ext_str);
+    return ok;
+}
+
+int X509V3_extensions_print(BIO *bp, const char *title,
+                            const STACK_OF(X509_EXTENSION) *exts,
+                            unsigned long flag, int indent)
+{
+    int i, j;
+
+    if (sk_X509_EXTENSION_num(exts) <= 0)
+        return 1;
+
+    if (title) {
+        BIO_printf(bp, "%*s%s:\n", indent, "", title);
+        indent += 4;
+    }
+
+    for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
+        ASN1_OBJECT *obj;
+        X509_EXTENSION *ex;
+        ex = sk_X509_EXTENSION_value(exts, i);
+        if (indent && BIO_printf(bp, "%*s", indent, "") <= 0)
+            return 0;
+        obj = X509_EXTENSION_get_object(ex);
+        i2a_ASN1_OBJECT(bp, obj);
+        j = X509_EXTENSION_get_critical(ex);
+        if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
+            return 0;
+        if (!X509V3_EXT_print(bp, ex, flag, indent + 4)) {
+            BIO_printf(bp, "%*s", indent + 4, "");
+            ASN1_STRING_print(bp, X509_EXTENSION_get_data(ex));
+        }
+        if (BIO_write(bp, "\n", 1) <= 0)
+            return 0;
+    }
+    return 1;
+}
+
+static int unknown_ext_print(BIO *out, const unsigned char *ext, int extlen,
+                             unsigned long flag, int indent, int supported)
+{
+    switch (flag & X509V3_EXT_UNKNOWN_MASK) {
+
+    case X509V3_EXT_DEFAULT:
+        return 0;
+
+    case X509V3_EXT_ERROR_UNKNOWN:
+        if (supported)
+            BIO_printf(out, "%*s<Parse Error>", indent, "");
+        else
+            BIO_printf(out, "%*s<Not Supported>", indent, "");
+        return 1;
+
+    case X509V3_EXT_PARSE_UNKNOWN:
+        return ASN1_parse_dump(out, ext, extlen, indent, -1);
+    case X509V3_EXT_DUMP_UNKNOWN:
+        return BIO_dump_indent(out, (const char *)ext, extlen, indent);
+
+    default:
+        return 1;
+    }
+}
+
+#ifndef OPENSSL_NO_STDIO
+int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
+{
+    BIO *bio_tmp;
+    int ret;
+
+    if ((bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
+        return 0;
+    ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
+    BIO_free(bio_tmp);
+    return ret;
+}
+#endif