X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=apps%2Fdsa.c;h=d864c75022dedafb7823f7c918f7708110b812cc;hp=03599be49d8f8ba8a89fea3786a6b7aa9e731ac7;hb=ff660b93126931ec37b4c4734e4ad4f4ef3c81db;hpb=1d97c8435171a7af575f73c526d79e1ef0ee5960

diff --git a/apps/dsa.c b/apps/dsa.c
index 03599be49d..d864c75022 100644
--- a/apps/dsa.c
+++ b/apps/dsa.c
@@ -1,25 +1,24 @@
-/* apps/dsa.c */
 /* 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:
@@ -34,10 +33,10 @@
  *     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 
+ * 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
@@ -49,329 +48,241 @@
  * 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/opensslconf.h>	/* for OPENSSL_NO_DSA */
+#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
 #ifndef OPENSSL_NO_DSA
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include "apps.h"
-#include <openssl/bio.h>
-#include <openssl/err.h>
-#include <openssl/dsa.h>
-#include <openssl/evp.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/bn.h>
-
-#undef PROG
-#define PROG	dsa_main
-
-/*-
- * -inform arg	- input format - default PEM (one of DER, NET or PEM)
- * -outform arg - output format - default PEM
- * -in arg	- input file - default stdin
- * -out arg	- output file - default stdout
- * -des		- encrypt output if PEM format with DES in cbc mode
- * -des3	- encrypt output if PEM format
- * -idea	- encrypt output if PEM format
- * -aes128	- encrypt output if PEM format
- * -aes192	- encrypt output if PEM format
- * -aes256	- encrypt output if PEM format
- * -camellia128 - encrypt output if PEM format
- * -camellia192 - encrypt output if PEM format
- * -camellia256 - encrypt output if PEM format
- * -seed        - encrypt output if PEM format
- * -text	- print a text version
- * -modulus	- print the DSA public key
- */
+# include <stdio.h>
+# include <stdlib.h>
+# include <string.h>
+# include <time.h>
+# include "apps.h"
+# include <openssl/bio.h>
+# include <openssl/err.h>
+# include <openssl/dsa.h>
+# include <openssl/evp.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/bn.h>
 
-int MAIN(int, char **);
+typedef enum OPTION_choice {
+    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+    OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT,
+    OPT_ENGINE, OPT_PVK_STRONG, OPT_PVK_WEAK,
+    OPT_PVK_NONE, OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_PUBIN,
+    OPT_PUBOUT, OPT_CIPHER, OPT_PASSIN, OPT_PASSOUT
+} OPTION_CHOICE;
 
-int MAIN(int argc, char **argv)
-	{
-	ENGINE *e = NULL;
-	int ret=1;
-	DSA *dsa=NULL;
-	int i,badops=0;
-	const EVP_CIPHER *enc=NULL;
-	BIO *in=NULL,*out=NULL;
-	int informat,outformat,text=0,noout=0;
-	int pubin = 0, pubout = 0;
-	char *infile,*outfile,*prog;
-#ifndef OPENSSL_NO_ENGINE
-	char *engine;
-#endif
-	char *passargin = NULL, *passargout = NULL;
-	char *passin = NULL, *passout = NULL;
-	int modulus=0;
-
-	int pvk_encr = 2;
-
-	apps_startup();
-
-	if (bio_err == NULL)
-		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
-			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
-
-	if (!load_config(bio_err, NULL))
-		goto end;
-
-#ifndef OPENSSL_NO_ENGINE
-	engine=NULL;
-#endif
-	infile=NULL;
-	outfile=NULL;
-	informat=FORMAT_PEM;
-	outformat=FORMAT_PEM;
+OPTIONS dsa_options[] = {
+    {"help", OPT_HELP, '-', "Display this summary"},
+    {"inform", OPT_INFORM, 'F', "Input format, DER PEM PVK"},
+    {"outform", OPT_OUTFORM, 'F', "Output format, DER PEM PVK"},
+# ifndef OPENSSL_NO_ENGINE
+    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
+# endif
+    {"in", OPT_IN, '<', "Input file"},
+    {"out", OPT_OUT, '>', "Output file"},
+    {"pvk-strong", OPT_PVK_STRONG, '-'},
+    {"pvk-weak", OPT_PVK_WEAK, '-'},
+    {"pvk-none", OPT_PVK_NONE, '-'},
+    {"noout", OPT_NOOUT, '-', "Don't print key out"},
+    {"text", OPT_TEXT, '-', "Print the key in text"},
+    {"modulus", OPT_MODULUS, '-', "Print the DSA public value"},
+    {"pubin", OPT_PUBIN, '-'},
+    {"pubout", OPT_PUBOUT, '-'},
+    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
+    {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
+    {"", OPT_CIPHER, '-', "Any supported cipher"},
+    {NULL}
+};
 
-	prog=argv[0];
-	argc--;
-	argv++;
-	while (argc >= 1)
-		{
-		if 	(strcmp(*argv,"-inform") == 0)
-			{
-			if (--argc < 1) goto bad;
-			informat=str2fmt(*(++argv));
-			}
-		else if (strcmp(*argv,"-outform") == 0)
-			{
-			if (--argc < 1) goto bad;
-			outformat=str2fmt(*(++argv));
-			}
-		else if (strcmp(*argv,"-in") == 0)
-			{
-			if (--argc < 1) goto bad;
-			infile= *(++argv);
-			}
-		else if (strcmp(*argv,"-out") == 0)
-			{
-			if (--argc < 1) goto bad;
-			outfile= *(++argv);
-			}
-		else if (strcmp(*argv,"-passin") == 0)
-			{
-			if (--argc < 1) goto bad;
-			passargin= *(++argv);
-			}
-		else if (strcmp(*argv,"-passout") == 0)
-			{
-			if (--argc < 1) goto bad;
-			passargout= *(++argv);
-			}
-#ifndef OPENSSL_NO_ENGINE
-		else if (strcmp(*argv,"-engine") == 0)
-			{
-			if (--argc < 1) goto bad;
-			engine= *(++argv);
-			}
-#endif
-		else if (strcmp(*argv,"-pvk-strong") == 0)
-			pvk_encr=2;
-		else if (strcmp(*argv,"-pvk-weak") == 0)
-			pvk_encr=1;
-		else if (strcmp(*argv,"-pvk-none") == 0)
-			pvk_encr=0;
-		else if (strcmp(*argv,"-noout") == 0)
-			noout=1;
-		else if (strcmp(*argv,"-text") == 0)
-			text=1;
-		else if (strcmp(*argv,"-modulus") == 0)
-			modulus=1;
-		else if (strcmp(*argv,"-pubin") == 0)
-			pubin=1;
-		else if (strcmp(*argv,"-pubout") == 0)
-			pubout=1;
-		else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
-			{
-			BIO_printf(bio_err,"unknown option %s\n",*argv);
-			badops=1;
-			break;
-			}
-		argc--;
-		argv++;
-		}
+int dsa_main(int argc, char **argv)
+{
+    BIO *out = NULL;
+    DSA *dsa = NULL;
+    ENGINE *e = NULL;
+    const EVP_CIPHER *enc = NULL;
+    char *infile = NULL, *outfile = NULL, *prog;
+    char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
+    OPTION_CHOICE o;
+    int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
+    int i, modulus = 0, pubin = 0, pubout = 0, pvk_encr = 2, ret = 1;
 
-	if (badops)
-		{
-bad:
-		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
-		BIO_printf(bio_err,"where options are\n");
-		BIO_printf(bio_err," -inform arg     input format - DER or PEM\n");
-		BIO_printf(bio_err," -outform arg    output format - DER or PEM\n");
-		BIO_printf(bio_err," -in arg         input file\n");
-		BIO_printf(bio_err," -passin arg     input file pass phrase source\n");
-		BIO_printf(bio_err," -out arg        output file\n");
-		BIO_printf(bio_err," -passout arg    output file pass phrase source\n");
-#ifndef OPENSSL_NO_ENGINE
-		BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");
-#endif
-		BIO_printf(bio_err," -des            encrypt PEM output with cbc des\n");
-		BIO_printf(bio_err," -des3           encrypt PEM output with ede cbc des using 168 bit key\n");
-#ifndef OPENSSL_NO_IDEA
-		BIO_printf(bio_err," -idea           encrypt PEM output with cbc idea\n");
-#endif
-#ifndef OPENSSL_NO_AES
-		BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
-		BIO_printf(bio_err,"                 encrypt PEM output with cbc aes\n");
+    prog = opt_init(argc, argv, dsa_options);
+    while ((o = opt_next()) != OPT_EOF) {
+        switch (o) {
+        case OPT_EOF:
+        case OPT_ERR:
+#ifdef OPENSSL_NO_RC4
+        case OPT_PVK_STRONG:
+        case OPT_PVK_WEAK:
+        case OPT_PVK_NONE:
 #endif
-#ifndef OPENSSL_NO_CAMELLIA
-		BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n");
-		BIO_printf(bio_err,"                 encrypt PEM output with cbc camellia\n");
-#endif
-#ifndef OPENSSL_NO_SEED
-		BIO_printf(bio_err," -seed           encrypt PEM output with cbc seed\n");
-#endif
-		BIO_printf(bio_err," -text           print the key in text\n");
-		BIO_printf(bio_err," -noout          don't print key out\n");
-		BIO_printf(bio_err," -modulus        print the DSA public value\n");
-		goto end;
-		}
-
-	ERR_load_crypto_strings();
-
-#ifndef OPENSSL_NO_ENGINE
-        e = setup_engine(bio_err, engine, 0);
+ opthelp:
+            ret = 0;
+            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+            goto end;
+        case OPT_HELP:
+            opt_help(dsa_options);
+            ret = 0;
+            goto end;
+        case OPT_INFORM:
+            if (!opt_format
+                (opt_arg(), OPT_FMT_PEMDER | OPT_FMT_PVK, &informat))
+                goto opthelp;
+            break;
+        case OPT_IN:
+            infile = opt_arg();
+            break;
+        case OPT_OUTFORM:
+            if (!opt_format
+                (opt_arg(), OPT_FMT_PEMDER | OPT_FMT_PVK, &outformat))
+                goto opthelp;
+            break;
+        case OPT_OUT:
+            outfile = opt_arg();
+            break;
+        case OPT_ENGINE:
+            e = setup_engine(opt_arg(), 0);
+            break;
+        case OPT_PASSIN:
+            passinarg = opt_arg();
+            break;
+        case OPT_PASSOUT:
+            passoutarg = opt_arg();
+            break;
+#ifndef OPENSSL_NO_RC4
+        case OPT_PVK_STRONG:
+            pvk_encr = 2;
+            break;
+        case OPT_PVK_WEAK:
+            pvk_encr = 1;
+            break;
+        case OPT_PVK_NONE:
+            pvk_encr = 0;
+            break;
 #endif
+        case OPT_NOOUT:
+            noout = 1;
+            break;
+        case OPT_TEXT:
+            text = 1;
+            break;
+        case OPT_MODULUS:
+            modulus = 1;
+            break;
+        case OPT_PUBIN:
+            pubin = 1;
+            break;
+        case OPT_PUBOUT:
+            pubout = 1;
+            break;
+        case OPT_CIPHER:
+            if (!opt_cipher(opt_unknown(), &enc))
+                goto end;
+            break;
+        }
+    }
+    argc = opt_num_rest();
+    argv = opt_rest();
 
-	if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
-		BIO_printf(bio_err, "Error getting passwords\n");
-		goto end;
-	}
-
-	in=BIO_new(BIO_s_file());
-	out=BIO_new(BIO_s_file());
-	if ((in == NULL) || (out == NULL))
-		{
-		ERR_print_errors(bio_err);
-		goto end;
-		}
+    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
+        BIO_printf(bio_err, "Error getting passwords\n");
+        goto end;
+    }
 
-	if (infile == NULL)
-		BIO_set_fp(in,stdin,BIO_NOCLOSE);
-	else
-		{
-		if (BIO_read_filename(in,infile) <= 0)
-			{
-			perror(infile);
-			goto end;
-			}
-		}
+    BIO_printf(bio_err, "read DSA key\n");
+    {
+        EVP_PKEY *pkey;
 
-	BIO_printf(bio_err,"read DSA key\n");
+        if (pubin)
+            pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
+        else
+            pkey = load_key(infile, informat, 1, passin, e, "Private Key");
 
-		{
-		EVP_PKEY	*pkey;
+        if (pkey) {
+            dsa = EVP_PKEY_get1_DSA(pkey);
+            EVP_PKEY_free(pkey);
+        }
+    }
+    if (dsa == NULL) {
+        BIO_printf(bio_err, "unable to load Key\n");
+        ERR_print_errors(bio_err);
+        goto end;
+    }
 
-		if (pubin)
-			pkey = load_pubkey(bio_err, infile, informat, 1,
-				passin, e, "Public Key");
-		else
-			pkey = load_key(bio_err, infile, informat, 1,
-				passin, e, "Private Key");
+    out = bio_open_default(outfile, "w");
+    if (out == NULL)
+        goto end;
 
-		if (pkey)
-			{
-			dsa = EVP_PKEY_get1_DSA(pkey);
-			EVP_PKEY_free(pkey);
-			}
-		}
-	if (dsa == NULL)
-		{
-		BIO_printf(bio_err,"unable to load Key\n");
-		ERR_print_errors(bio_err);
-		goto end;
-		}
-
-	if (outfile == NULL)
-		{
-		BIO_set_fp(out,stdout,BIO_NOCLOSE);
-#ifdef OPENSSL_SYS_VMS
-		{
-		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
-		out = BIO_push(tmpbio, out);
-		}
-#endif
-		}
-	else
-		{
-		if (BIO_write_filename(out,outfile) <= 0)
-			{
-			perror(outfile);
-			goto end;
-			}
-		}
+    if (text)
+        if (!DSA_print(out, dsa, 0)) {
+            perror(outfile);
+            ERR_print_errors(bio_err);
+            goto end;
+        }
 
-	if (text) 
-		if (!DSA_print(out,dsa,0))
-			{
-			perror(outfile);
-			ERR_print_errors(bio_err);
-			goto end;
-			}
+    if (modulus) {
+        BIO_printf(out, "Public Key=");
+        BN_print(out, dsa->pub_key);
+        BIO_printf(out, "\n");
+    }
 
-	if (modulus)
-		{
-		fprintf(stdout,"Public Key=");
-		BN_print(out,dsa->pub_key);
-		fprintf(stdout,"\n");
-		}
-
-	if (noout) goto end;
-	BIO_printf(bio_err,"writing DSA key\n");
-	if 	(outformat == FORMAT_ASN1) {
-		if(pubin || pubout) i=i2d_DSA_PUBKEY_bio(out,dsa);
-		else i=i2d_DSAPrivateKey_bio(out,dsa);
-	} else if (outformat == FORMAT_PEM) {
-		if(pubin || pubout)
-			i=PEM_write_bio_DSA_PUBKEY(out,dsa);
-		else i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,
-							NULL,0,NULL, passout);
-#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4)
-	} else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
-		EVP_PKEY *pk;
-		pk = EVP_PKEY_new();
-		EVP_PKEY_set1_DSA(pk, dsa);
-		if (outformat == FORMAT_PVK)
-			i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
-		else if (pubin || pubout)
-			i = i2b_PublicKey_bio(out, pk);
-		else
-			i = i2b_PrivateKey_bio(out, pk);
-		EVP_PKEY_free(pk);
-#endif
-	} else {
-		BIO_printf(bio_err,"bad output format specified for outfile\n");
-		goto end;
-		}
-	if (i <= 0)
-		{
-		BIO_printf(bio_err,"unable to write private key\n");
-		ERR_print_errors(bio_err);
-		}
-	else
-		ret=0;
-end:
-	if(in != NULL) BIO_free(in);
-	if(out != NULL) BIO_free_all(out);
-	if(dsa != NULL) DSA_free(dsa);
-	if(passin) OPENSSL_free(passin);
-	if(passout) OPENSSL_free(passout);
-	apps_shutdown();
-	OPENSSL_EXIT(ret);
-	}
-#else /* !OPENSSL_NO_DSA */
+    if (noout) {
+        ret = 0;
+        goto end;
+    }
+    BIO_printf(bio_err, "writing DSA key\n");
+    if (outformat == FORMAT_ASN1) {
+        if (pubin || pubout)
+            i = i2d_DSA_PUBKEY_bio(out, dsa);
+        else
+            i = i2d_DSAPrivateKey_bio(out, dsa);
+    } else if (outformat == FORMAT_PEM) {
+        if (pubin || pubout)
+            i = PEM_write_bio_DSA_PUBKEY(out, dsa);
+        else
+            i = PEM_write_bio_DSAPrivateKey(out, dsa, enc,
+                                            NULL, 0, NULL, passout);
+# if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4)
+    } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
+        EVP_PKEY *pk;
+        pk = EVP_PKEY_new();
+        EVP_PKEY_set1_DSA(pk, dsa);
+        if (outformat == FORMAT_PVK)
+            i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
+        else if (pubin || pubout)
+            i = i2b_PublicKey_bio(out, pk);
+        else
+            i = i2b_PrivateKey_bio(out, pk);
+        EVP_PKEY_free(pk);
+# endif
+    } else {
+        BIO_printf(bio_err, "bad output format specified for outfile\n");
+        goto end;
+    }
+    if (i <= 0) {
+        BIO_printf(bio_err, "unable to write private key\n");
+        ERR_print_errors(bio_err);
+        goto end;
+    }
+    ret = 0;
+ end:
+    BIO_free_all(out);
+    DSA_free(dsa);
+    OPENSSL_free(passin);
+    OPENSSL_free(passout);
+    return (ret);
+}
+#else                           /* !OPENSSL_NO_DSA */
 
 # if PEDANTIC
-static void *dummy=&dummy;
+static void *dummy = &dummy;
 # endif
 
 #endif