X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fpkeyparam.c;h=abb40d1ab29c98133d5cfe13d155ce7bb0974058;hp=8435e5ea41861b2ba4be7cfc3e5a098e447dc3c7;hb=cc9d6655a1e6562564a0ac4b5dfcd72f24de7063;hpb=105f6a6323cd1a9ac7fab68d575bf0382324a3bc

diff --git a/apps/pkeyparam.c b/apps/pkeyparam.c
index 8435e5ea41..abb40d1ab2 100644
--- a/apps/pkeyparam.c
+++ b/apps/pkeyparam.c
@@ -1,6 +1,6 @@
-/* apps/pkeyparam.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2006
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2006
  */
 /* ====================================================================
  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
@@ -10,7 +10,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    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
@@ -62,138 +62,87 @@
 #include <openssl/err.h>
 #include <openssl/evp.h>
 
-#define PROG pkeyparam_main
-
-int MAIN(int, char **);
-
-int MAIN(int argc, char **argv)
-	{
-	ENGINE *e = NULL;
-	char **args, *infile = NULL, *outfile = NULL;
-	BIO *in = NULL, *out = NULL;
-	int text = 0, noout = 0;
-	EVP_PKEY *pkey=NULL;
-	int badarg = 0;
-#ifndef OPENSSL_NO_ENGINE
-	char *engine=NULL;
-#endif
-	int ret = 1;
-
-	if (bio_err == NULL)
-		bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
-
-	if (!load_config(bio_err, NULL))
-		goto end;
-
-	ERR_load_crypto_strings();
-	OpenSSL_add_all_algorithms();
-	args = argv + 1;
-	while (!badarg && *args && *args[0] == '-')
-		{
-		if (!strcmp (*args, "-in"))
-			{
-			if (args[1])
-				{
-				args++;
-				infile = *args;
-				}
-			else badarg = 1;
-			}
-		else if (!strcmp (*args, "-out"))
-			{
-			if (args[1])
-				{
-				args++;
-				outfile = *args;
-				}
-			else badarg = 1;
-			}
-#ifndef OPENSSL_NO_ENGINE
-		else if (strcmp(*args,"-engine") == 0)
-			{
-			if (!args[1]) goto bad;
-			engine= *(++args);
-			}
-#endif
-
-		else if (strcmp(*args,"-text") == 0)
-			text=1;
-		else if (strcmp(*args,"-noout") == 0)
-			noout=1;
-		args++;
-		}
-
-	if (badarg)
-		{
-		bad:
-		BIO_printf(bio_err, "Usage pkeyparam [options]\n");
-		BIO_printf(bio_err, "where options are\n");
-		BIO_printf(bio_err, "-in file        input file\n");
-		BIO_printf(bio_err, "-out file       output file\n");
-		BIO_printf(bio_err, "-text           print parameters as text\n");
-		BIO_printf(bio_err, "-noout          don't output encoded parameters\n");
+typedef enum OPTION_choice {
+    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+    OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT, OPT_ENGINE
+} OPTION_CHOICE;
+
+OPTIONS pkeyparam_options[] = {
+    {"help", OPT_HELP, '-', "Display this summary"},
+    {"in", OPT_IN, '<', "Input file"},
+    {"out", OPT_OUT, '>', "Output file"},
+    {"text", OPT_TEXT, '-', "Print parameters as text"},
+    {"noout", OPT_NOOUT, '-', "Don't output encoded parameters"},
 #ifndef OPENSSL_NO_ENGINE
-		BIO_printf(bio_err, "-engine e       use engine e, possibly a hardware device.\n");
+    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 #endif
-		return 1;
-		}
-
-#ifndef OPENSSL_NO_ENGINE
-        e = setup_engine(bio_err, engine, 0);
-#endif
-
-	if (infile)
-		{
-		if (!(in = BIO_new_file (infile, "r")))
-			{
-			BIO_printf(bio_err,
-				 "Can't open input file %s\n", infile);
-			goto end;
-			}
-		}
-	else
-		in = BIO_new_fp (stdin, BIO_NOCLOSE);
-
-	if (outfile)
-		{
-		if (!(out = BIO_new_file (outfile, "w")))
-			{
-			BIO_printf(bio_err,
-				 "Can't open output file %s\n", outfile);
-			goto end;
-			}
-		}
-	else
-		{
-		out = BIO_new_fp (stdout, BIO_NOCLOSE);
-#ifdef OPENSSL_SYS_VMS
-			{
-			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
-			out = BIO_push(tmpbio, out);
-			}
-#endif
-		}
-
-	pkey = PEM_read_bio_Parameters(in, NULL);
-	if (!pkey)
-		{
-		BIO_printf(bio_err, "Error reading paramters\n");
-		ERR_print_errors(bio_err);
-		goto end;
-		}
-
-	if (!noout)
-		PEM_write_bio_Parameters(out,pkey);
-
-	if (text)
-		EVP_PKEY_print_params(out, pkey, 0, NULL);
-
-	ret = 0;
-
-	end:
-	EVP_PKEY_free(pkey);
-	BIO_free_all(out);
-	BIO_free(in);
-
-	return ret;
-	}
+    {NULL}
+};
+
+int pkeyparam_main(int argc, char **argv)
+{
+    BIO *in = NULL, *out = NULL;
+    EVP_PKEY *pkey = NULL;
+    int text = 0, noout = 0, ret = 1;
+    OPTION_CHOICE o;
+    char *infile = NULL, *outfile = NULL, *prog;
+
+    prog = opt_init(argc, argv, pkeyparam_options);
+    while ((o = opt_next()) != OPT_EOF) {
+        switch (o) {
+        case OPT_EOF:
+        case OPT_ERR:
+            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+            goto end;
+        case OPT_HELP:
+            opt_help(pkeyparam_options);
+            ret = 0;
+            goto end;
+        case OPT_IN:
+            infile = opt_arg();
+            break;
+        case OPT_OUT:
+            outfile = opt_arg();
+            break;
+        case OPT_ENGINE:
+            (void)setup_engine(opt_arg(), 0);
+            break;
+        case OPT_TEXT:
+            text = 1;
+            break;
+        case OPT_NOOUT:
+            noout = 1;
+            break;
+        }
+    }
+    argc = opt_num_rest();
+    argv = opt_rest();
+
+    in = bio_open_default(infile, 'r', FORMAT_PEM);
+    if (in == NULL)
+        goto end;
+    out = bio_open_default(outfile, 'w', FORMAT_PEM);
+    if (out == NULL)
+        goto end;
+    pkey = PEM_read_bio_Parameters(in, NULL);
+    if (!pkey) {
+        BIO_printf(bio_err, "Error reading parameters\n");
+        ERR_print_errors(bio_err);
+        goto end;
+    }
+
+    if (!noout)
+        PEM_write_bio_Parameters(out, pkey);
+
+    if (text)
+        EVP_PKEY_print_params(out, pkey, 0, NULL);
+
+    ret = 0;
+
+ end:
+    EVP_PKEY_free(pkey);
+    BIO_free_all(out);
+    BIO_free(in);
+
+    return ret;
+}