Demo of use of errors in applications.
[openssl.git] / apps / dsa.c
index 85c62b9..5222487 100644 (file)
@@ -56,7 +56,8 @@
  * [including the GNU Public Licence.]
  */
 
-#ifndef NO_DSA
+#include <openssl/opensslconf.h>       /* for OPENSSL_NO_DSA */
+#ifndef OPENSSL_NO_DSA
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -68,6 +69,7 @@
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 #include <openssl/pem.h>
+#include <openssl/bn.h>
 
 #undef PROG
 #define PROG   dsa_main
  * -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
  */
 
+int MAIN(int, char **);
+
 int MAIN(int argc, char **argv)
        {
+       ENGINE *e = NULL;
        int ret=1;
        DSA *dsa=NULL;
        int i,badops=0;
@@ -93,15 +105,27 @@ int MAIN(int argc, char **argv)
        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;
@@ -135,36 +159,26 @@ int MAIN(int argc, char **argv)
                else if (strcmp(*argv,"-passin") == 0)
                        {
                        if (--argc < 1) goto bad;
-                       passin= *(++argv);
+                       passargin= *(++argv);
                        }
-               else if (strcmp(*argv,"-envpassin") == 0)
+               else if (strcmp(*argv,"-passout") == 0)
                        {
                        if (--argc < 1) goto bad;
-                               if(!(passin= getenv(*(++argv))))
-                               {
-                               BIO_printf(bio_err,
-                                "Can't read environment variable %s\n",
-                                                               *argv);
-                               badops = 1;
-                               }
+                       passargout= *(++argv);
                        }
-               else if (strcmp(*argv,"-envpassout") == 0)
+#ifndef OPENSSL_NO_ENGINE
+               else if (strcmp(*argv,"-engine") == 0)
                        {
                        if (--argc < 1) goto bad;
-                               if(!(passout= getenv(*(++argv))))
-                               {
-                               BIO_printf(bio_err,
-                                "Can't read environment variable %s\n",
-                                                               *argv);
-                               badops = 1;
-                               }
-                       argv++;
-                       }
-               else if (strcmp(*argv,"-passout") == 0)
-                       {
-                       if (--argc < 1) goto bad;
-                       passout= *(++argv);
+                       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)
@@ -193,15 +207,27 @@ bad:
                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\n");
-               BIO_printf(bio_err," -envpassin arg  environment variable containing input file pass phrase\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    input file pass phrase\n");
-               BIO_printf(bio_err," -envpassout arg environment variable containing input file pass phrase\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 NO_IDEA
+#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");
+#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");
@@ -211,6 +237,15 @@ bad:
 
        ERR_load_crypto_strings();
 
+#ifndef OPENSSL_NO_ENGINE
+        e = setup_engine(bio_err, engine, 0);
+#endif
+
+       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))
@@ -231,20 +266,22 @@ bad:
                }
 
        BIO_printf(bio_err,"read DSA key\n");
-       if      (informat == FORMAT_ASN1) {
-               if(pubin) dsa=d2i_DSAPublicKey_bio(in,NULL);
-               else dsa=d2i_DSAPrivateKey_bio(in,NULL);
-       } else if (informat == FORMAT_PEM) {
-               if(pubin) dsa=PEM_read_bio_DSAPublicKey(in,NULL, NULL, NULL);
-               else {
-                       if(passin) dsa=PEM_read_bio_DSAPrivateKey(in,NULL,
-                                                               key_cb,passin);
-                       else dsa=PEM_read_bio_DSAPrivateKey(in,NULL,NULL,NULL);
-               }
-       } else
+
                {
-               BIO_printf(bio_err,"bad input format specified for key\n");
-               goto end;
+               EVP_PKEY        *pkey;
+
+               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");
+
+               if (pkey)
+                       {
+                       dsa = EVP_PKEY_get1_DSA(pkey);
+                       EVP_PKEY_free(pkey);
+                       }
                }
        if (dsa == NULL)
                {
@@ -254,7 +291,15 @@ bad:
                }
 
        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)
@@ -282,22 +327,31 @@ bad:
        if (noout) goto end;
        BIO_printf(bio_err,"writing DSA key\n");
        if      (outformat == FORMAT_ASN1) {
-               if(pubin || pubout) i=i2d_DSAPublicKey_bio(out,dsa);
+               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_DSAPublicKey(out,dsa);
-               else {
-                       if(passout) i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,
-                                                       NULL,0,key_cb, passout);
-                       i=PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,
-                                                                    NULL,NULL);
-               }
+                       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)
+       if (i <= 0)
                {
                BIO_printf(bio_err,"unable to write private key\n");
                ERR_print_errors(bio_err);
@@ -305,9 +359,18 @@ bad:
        else
                ret=0;
 end:
-       if (in != NULL) BIO_free(in);
-       if (out != NULL) BIO_free(out);
-       if (dsa != NULL) DSA_free(dsa);
-       EXIT(ret);
+       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 PEDANTIC
+static void *dummy=&dummy;
+# endif
+
 #endif