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[cassiopeia.git] / lib / openssl / demos / x509 / mkreq.c
diff --git a/lib/openssl/demos/x509/mkreq.c b/lib/openssl/demos/x509/mkreq.c
new file mode 100644 (file)
index 0000000..d1cba9d
--- /dev/null
@@ -0,0 +1,162 @@
+/* Certificate request creation. Demonstrates some request related
+ * operations.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <openssl/pem.h>
+#include <openssl/conf.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
+
+int mkreq(X509_REQ **x509p, EVP_PKEY **pkeyp, int bits, int serial, int days);
+int add_ext(STACK_OF(X509_EXTENSION) *sk, int nid, char *value);
+
+int main(int argc, char **argv)
+       {
+       BIO *bio_err;
+       X509_REQ *req=NULL;
+       EVP_PKEY *pkey=NULL;
+
+       CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
+
+       bio_err=BIO_new_fp(stderr, BIO_NOCLOSE);
+
+       mkreq(&req,&pkey,512,0,365);
+
+       RSA_print_fp(stdout,pkey->pkey.rsa,0);
+       X509_REQ_print_fp(stdout,req);
+
+       PEM_write_X509_REQ(stdout,req);
+
+       X509_REQ_free(req);
+       EVP_PKEY_free(pkey);
+
+#ifndef OPENSSL_NO_ENGINE
+       ENGINE_cleanup();
+#endif
+       CRYPTO_cleanup_all_ex_data();
+
+       CRYPTO_mem_leaks(bio_err);
+       BIO_free(bio_err);
+       return(0);
+       }
+
+static void callback(int p, int n, void *arg)
+       {
+       char c='B';
+
+       if (p == 0) c='.';
+       if (p == 1) c='+';
+       if (p == 2) c='*';
+       if (p == 3) c='\n';
+       fputc(c,stderr);
+       }
+
+int mkreq(X509_REQ **req, EVP_PKEY **pkeyp, int bits, int serial, int days)
+       {
+       X509_REQ *x;
+       EVP_PKEY *pk;
+       RSA *rsa;
+       X509_NAME *name=NULL;
+       STACK_OF(X509_EXTENSION) *exts = NULL;
+       
+       if ((pk=EVP_PKEY_new()) == NULL)
+               goto err;
+
+       if ((x=X509_REQ_new()) == NULL)
+               goto err;
+
+       rsa=RSA_generate_key(bits,RSA_F4,callback,NULL);
+       if (!EVP_PKEY_assign_RSA(pk,rsa))
+               goto err;
+
+       rsa=NULL;
+
+       X509_REQ_set_pubkey(x,pk);
+
+       name=X509_REQ_get_subject_name(x);
+
+       /* This function creates and adds the entry, working out the
+        * correct string type and performing checks on its length.
+        * Normally we'd check the return value for errors...
+        */
+       X509_NAME_add_entry_by_txt(name,"C",
+                               MBSTRING_ASC, "UK", -1, -1, 0);
+       X509_NAME_add_entry_by_txt(name,"CN",
+                               MBSTRING_ASC, "OpenSSL Group", -1, -1, 0);
+
+#ifdef REQUEST_EXTENSIONS
+       /* Certificate requests can contain extensions, which can be used
+        * to indicate the extensions the requestor would like added to 
+        * their certificate. CAs might ignore them however or even choke
+        * if they are present.
+        */
+
+       /* For request extensions they are all packed in a single attribute.
+        * We save them in a STACK and add them all at once later...
+        */
+
+       exts = sk_X509_EXTENSION_new_null();
+       /* Standard extenions */
+
+       add_ext(exts, NID_key_usage, "critical,digitalSignature,keyEncipherment");
+
+       /* This is a typical use for request extensions: requesting a value for
+        * subject alternative name.
+        */
+
+       add_ext(exts, NID_subject_alt_name, "email:steve@openssl.org");
+
+       /* Some Netscape specific extensions */
+       add_ext(exts, NID_netscape_cert_type, "client,email");
+
+
+
+#ifdef CUSTOM_EXT
+       /* Maybe even add our own extension based on existing */
+       {
+               int nid;
+               nid = OBJ_create("1.2.3.4", "MyAlias", "My Test Alias Extension");
+               X509V3_EXT_add_alias(nid, NID_netscape_comment);
+               add_ext(x, nid, "example comment alias");
+       }
+#endif
+
+       /* Now we've created the extensions we add them to the request */
+
+       X509_REQ_add_extensions(x, exts);
+
+       sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
+
+#endif
+       
+       if (!X509_REQ_sign(x,pk,EVP_sha1()))
+               goto err;
+
+       *req=x;
+       *pkeyp=pk;
+       return(1);
+err:
+       return(0);
+       }
+
+/* Add extension using V3 code: we can set the config file as NULL
+ * because we wont reference any other sections.
+ */
+
+int add_ext(STACK_OF(X509_EXTENSION) *sk, int nid, char *value)
+       {
+       X509_EXTENSION *ex;
+       ex = X509V3_EXT_conf_nid(NULL, NULL, nid, value);
+       if (!ex)
+               return 0;
+       sk_X509_EXTENSION_push(sk, ex);
+
+       return 1;
+       }
+