1 files changed, 50 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/x509v3/v3prin.c b/openssl-1.1.0h/crypto/x509v3/v3prin.c
new file mode 100644
index 0000000..7431a4e
--- /dev/null
+++ b/openssl-1.1.0h/crypto/x509v3/v3prin.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright 1999-2016 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 <openssl/asn1.h>
+#include <openssl/conf.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+int main(int argc, char **argv)
+{
+    X509 *cert;
+    FILE *inf;
+    int i, count;
+    X509_EXTENSION *ext;
+
+    X509V3_add_standard_extensions();
+    ERR_load_crypto_strings();
+    if (!argv[1]) {
+        fprintf(stderr, "Usage v3prin cert.pem\n");
+        exit(1);
+    }
+    if ((inf = fopen(argv[1], "r")) == NULL) {
+        fprintf(stderr, "Can't open %s\n", argv[1]);
+        exit(1);
+    }
+    if ((cert = PEM_read_X509(inf, NULL, NULL)) == NULL) {
+        fprintf(stderr, "Can't read certificate %s\n", argv[1]);
+        ERR_print_errors_fp(stderr);
+        exit(1);
+    }
+    fclose(inf);
+    count = X509_get_ext_count(cert);
+    printf("%d extensions\n", count);
+    for (i = 0; i < count; i++) {
+        ext = X509_get_ext(cert, i);
+        printf("%s\n", OBJ_nid2ln(OBJ_obj2nid(ext->object)));
+        if (!X509V3_EXT_print_fp(stdout, ext, 0, 0))
+            ERR_print_errors_fp(stderr);
+        printf("\n");
+
+    }
+    return 0;
+}