Fix a memory leak, and don't generate inappropriate error message
[openssl.git] / apps / x509.c
index 210a25fb09b5cc62089b8379316c1d46567ca4e4..5403576585adfe4bf4d7f93725ff4a8f806a0c33 100644 (file)
@@ -56,6 +56,7 @@
  * [including the GNU Public Licence.]
  */
 
+#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 static char *x509_usage[]={
 "usage: x509 args\n",
 " -inform arg     - input format - default PEM (one of DER, NET or PEM)\n",
-" -outform arg    - output format - default PEM (one of DER, NET or PEM\n",
+" -outform arg    - output format - default PEM (one of DER, NET or PEM)\n",
 " -keyform arg    - private key format - default PEM\n",
 " -CAform arg     - CA format - default PEM\n",
 " -CAkeyform arg  - CA key format - default PEM\n",
 " -in arg         - input file - default stdin\n",
 " -out arg        - output file - default stdout\n",
+" -passin arg     - private key password source\n",
 " -serial         - print serial number value\n",
 " -hash           - print hash value\n",
 " -subject        - print subject DN\n",
 " -issuer         - print issuer DN\n",
 " -startdate      - notBefore field\n",
 " -enddate        - notAfter field\n",
+" -purpose        - print out certificate purposes\n",
 " -dates          - both Before and After dates\n",
 " -modulus        - print the RSA key modulus\n",
+" -pubkey         - output the public key\n",
 " -fingerprint    - print the certificate fingerprint\n",
+" -alias          - output certificate alias\n",
 " -noout          - no certificate output\n",
-
+" -trustout       - output a \"trusted\" certificate\n",
+" -clrtrust       - clear all trusted purposes\n",
+" -clrreject      - clear all rejected purposes\n",
+" -addtrust arg   - trust certificate for a given purpose\n",
+" -addreject arg  - reject certificate for a given purpose\n",
+" -setalias arg   - set certificate alias\n",
 " -days arg       - How long till expiry of a signed certificate - def 30 days\n",
 " -signkey arg    - self sign cert with arg\n",
 " -x509toreq      - output a certification request object\n",
 " -req            - input is a certificate request, sign and output.\n",
 " -CA arg         - set the CA certificate, must be PEM format.\n",
 " -CAkey arg      - set the CA key, must be PEM format\n",
-"                   missing, it is asssumed to be in the CA file.\n",
+"                   missing, it is assumed to be in the CA file.\n",
 " -CAcreateserial - create serial number file if it does not exist\n",
 " -CAserial       - serial file\n",
 " -text           - print the certificate in text form\n",
 " -C              - print out C code forms\n",
-" -md2/-md5/-sha1/-mdc2 - digest to do an RSA sign with\n",
-" -config         - configuration file with X509V3 extensions to add\n",
+" -md2/-md5/-sha1/-mdc2 - digest to use\n",
+" -extfile        - configuration file with X509V3 extensions to add\n",
+" -extensions     - section from config file with X509V3 extensions to add\n",
+" -clrext         - delete extensions before signing and input certificate\n",
 NULL
 };
 
 static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx);
-static EVP_PKEY *load_key(char *file, int format);
+static EVP_PKEY *load_key(char *file, int format, char *passin);
 static X509 *load_cert(char *file, int format);
-static int sign (X509 *x, EVP_PKEY *pkey,int days,const EVP_MD *digest,
+static int sign (X509 *x, EVP_PKEY *pkey,int days,int clrext, const EVP_MD *digest,
                                                LHASH *conf, char *section);
 static int x509_certify (X509_STORE *ctx,char *CAfile,const EVP_MD *digest,
                         X509 *x,X509 *xca,EVP_PKEY *pkey,char *serial,
-                        int create,int days, LHASH *conf, char *section);
+                        int create,int days, int clrext, LHASH *conf, char *section);
+static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
 static int reqfile=0;
 
+int MAIN(int, char **);
+
 int MAIN(int argc, char **argv)
        {
        int ret=1;
        X509_REQ *req=NULL;
        X509 *x=NULL,*xca=NULL;
+       ASN1_OBJECT *objtmp;
        EVP_PKEY *Upkey=NULL,*CApkey=NULL;
        int i,num,badops=0;
        BIO *out=NULL;
        BIO *STDout=NULL;
+       STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
        int informat,outformat,keyformat,CAformat,CAkeyformat;
        char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
        char *CAkeyfile=NULL,*CAserial=NULL;
+       char *alias=NULL;
        int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
        int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
+       int trustout=0,clrtrust=0,clrreject=0,aliasout=0,clrext=0;
        int C=0;
-       int x509req=0,days=DEF_DAYS,modulus=0;
+       int x509req=0,days=DEF_DAYS,modulus=0,pubkey=0;
+       int pprint = 0;
        char **pp;
        X509_STORE *ctx=NULL;
        X509_REQ *rq=NULL;
@@ -151,7 +171,8 @@ int MAIN(int argc, char **argv)
        char buf[256];
        const EVP_MD *md_alg,*digest=EVP_md5();
        LHASH *extconf = NULL;
-       char *extsect = NULL, *extfile = NULL;
+       char *extsect = NULL, *extfile = NULL, *passin = NULL, *passargin = NULL;
+       int need_rand = 0;
 
        reqfile=0;
 
@@ -192,7 +213,10 @@ int MAIN(int argc, char **argv)
                        keyformat=str2fmt(*(++argv));
                        }
                else if (strcmp(*argv,"-req") == 0)
+                       {
                        reqfile=1;
+                       need_rand = 1;
+                       }
                else if (strcmp(*argv,"-CAform") == 0)
                        {
                        if (--argc < 1) goto bad;
@@ -213,11 +237,21 @@ int MAIN(int argc, char **argv)
                                goto bad;
                                }
                        }
-               else if (strcmp(*argv,"-config") == 0)
+               else if (strcmp(*argv,"-passin") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       passargin= *(++argv);
+                       }
+               else if (strcmp(*argv,"-extfile") == 0)
                        {
                        if (--argc < 1) goto bad;
                        extfile= *(++argv);
                        }
+               else if (strcmp(*argv,"-extensions") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       extsect= *(++argv);
+                       }
                else if (strcmp(*argv,"-in") == 0)
                        {
                        if (--argc < 1) goto bad;
@@ -233,12 +267,14 @@ int MAIN(int argc, char **argv)
                        if (--argc < 1) goto bad;
                        keyfile= *(++argv);
                        sign_flag= ++num;
+                       need_rand = 1;
                        }
                else if (strcmp(*argv,"-CA") == 0)
                        {
                        if (--argc < 1) goto bad;
                        CAfile= *(++argv);
                        CA_flag= ++num;
+                       need_rand = 1;
                        }
                else if (strcmp(*argv,"-CAkey") == 0)
                        {
@@ -250,12 +286,50 @@ int MAIN(int argc, char **argv)
                        if (--argc < 1) goto bad;
                        CAserial= *(++argv);
                        }
+               else if (strcmp(*argv,"-addtrust") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       if(!(objtmp = OBJ_txt2obj(*(++argv), 0))) {
+                               BIO_printf(bio_err,
+                                       "Invalid trust object value %s\n", *argv);
+                               goto bad;
+                       }
+                       if(!trust) trust = sk_ASN1_OBJECT_new_null();
+                       sk_ASN1_OBJECT_push(trust, objtmp);
+                       trustout = 1;
+                       }
+               else if (strcmp(*argv,"-addreject") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       if(!(objtmp = OBJ_txt2obj(*(++argv), 0))) {
+                               BIO_printf(bio_err,
+                                       "Invalid reject object value %s\n", *argv);
+                               goto bad;
+                       }
+                       if(!reject) reject = sk_ASN1_OBJECT_new_null();
+                       sk_ASN1_OBJECT_push(reject, objtmp);
+                       trustout = 1;
+                       }
+               else if (strcmp(*argv,"-setalias") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       alias= *(++argv);
+                       trustout = 1;
+                       }
+               else if (strcmp(*argv,"-setalias") == 0)
+                       {
+                       if (--argc < 1) goto bad;
+                       alias= *(++argv);
+                       trustout = 1;
+                       }
                else if (strcmp(*argv,"-C") == 0)
                        C= ++num;
                else if (strcmp(*argv,"-serial") == 0)
                        serial= ++num;
                else if (strcmp(*argv,"-modulus") == 0)
                        modulus= ++num;
+               else if (strcmp(*argv,"-pubkey") == 0)
+                       pubkey= ++num;
                else if (strcmp(*argv,"-x509toreq") == 0)
                        x509req= ++num;
                else if (strcmp(*argv,"-text") == 0)
@@ -273,15 +347,34 @@ int MAIN(int argc, char **argv)
                        startdate= ++num;
                        enddate= ++num;
                        }
+               else if (strcmp(*argv,"-purpose") == 0)
+                       pprint= ++num;
                else if (strcmp(*argv,"-startdate") == 0)
                        startdate= ++num;
                else if (strcmp(*argv,"-enddate") == 0)
                        enddate= ++num;
                else if (strcmp(*argv,"-noout") == 0)
                        noout= ++num;
+               else if (strcmp(*argv,"-trustout") == 0)
+                       trustout= 1;
+               else if (strcmp(*argv,"-clrtrust") == 0)
+                       clrtrust= ++num;
+               else if (strcmp(*argv,"-clrreject") == 0)
+                       clrreject= ++num;
+               else if (strcmp(*argv,"-alias") == 0)
+                       aliasout= ++num;
                else if (strcmp(*argv,"-CAcreateserial") == 0)
                        CA_createserial= ++num;
-               else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
+               else if (strcmp(*argv,"-clrext") == 0)
+                       clrext = 1;
+#if 1 /* stay backwards-compatible with 0.9.5; this should go away soon */
+               else if (strcmp(*argv,"-crlext") == 0)
+                       {
+                       BIO_printf(bio_err,"use -clrext instead of -crlext\n");
+                       clrext = 1;
+                       }
+#endif
+               else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
                        {
                        /* ok */
                        digest=md_alg;
@@ -304,8 +397,15 @@ bad:
                goto end;
                }
 
+       if (need_rand)
+               app_RAND_load_file(NULL, bio_err, 0);
+
        ERR_load_crypto_strings();
-       X509V3_add_standard_extensions();
+
+       if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
+               BIO_printf(bio_err, "Error getting password\n");
+               goto end;
+       }
 
        if (!X509_STORE_set_default_paths(ctx))
                {
@@ -323,7 +423,7 @@ bad:
 
        if (extfile) {
                long errorline;
-               X509V3_CTX ctx;
+               X509V3_CTX ctx2;
                if (!(extconf=CONF_load(NULL,extfile,&errorline))) {
                        if (errorline <= 0)
                                BIO_printf(bio_err,
@@ -335,11 +435,11 @@ bad:
                                                        ,errorline,extfile);
                        goto end;
                }
-               if(!(extsect = CONF_get_string(extconf, "default",
+               if(!extsect && !(extsect = CONF_get_string(extconf, "default",
                                         "extensions"))) extsect = "default";
-               X509V3_set_ctx_test(&ctx);
-               X509V3_set_conf_lhash(&ctx, extconf);
-               if(!X509V3_EXT_add_conf(extconf, &ctx, extsect, NULL)) {
+               X509V3_set_ctx_test(&ctx2);
+               X509V3_set_conf_lhash(&ctx2, extconf);
+               if(!X509V3_EXT_add_conf(extconf, &ctx2, extsect, NULL)) {
                        BIO_printf(bio_err,
                                "Error Loading extension section %s\n",
                                                                 extsect);
@@ -374,13 +474,18 @@ bad:
                        if (BIO_read_filename(in,infile) <= 0)
                                {
                                perror(infile);
+                               BIO_free(in);
                                goto end;
                                }
                        }
-               req=PEM_read_bio_X509_REQ(in,NULL,NULL);
+               req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
                BIO_free(in);
 
-               if (req == NULL) { perror(infile); goto end; }
+               if (req == NULL)
+                       {
+                       ERR_print_errors(bio_err);
+                       goto end;
+                       }
 
                if (    (req->req_info == NULL) ||
                        (req->req_info->pubkey == NULL) ||
@@ -425,15 +530,9 @@ bad:
                X509_gmtime_adj(X509_get_notBefore(x),0);
                X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
 
-#if 0
-               X509_PUBKEY_free(ci->key);
-               ci->key=req->req_info->pubkey;
-               req->req_info->pubkey=NULL;
-#else
                pkey = X509_REQ_get_pubkey(req);
                X509_set_pubkey(x,pkey);
                EVP_PKEY_free(pkey);
-#endif
                }
        else
                x=load_cert(infile,informat);
@@ -468,6 +567,25 @@ bad:
                        }
                }
 
+       if(alias) X509_alias_set1(x, (unsigned char *)alias, -1);
+
+       if(clrtrust) X509_trust_clear(x);
+       if(clrreject) X509_reject_clear(x);
+
+       if(trust) {
+               for(i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
+                       objtmp = sk_ASN1_OBJECT_value(trust, i);
+                       X509_add1_trust_object(x, objtmp);
+               }
+       }
+
+       if(reject) {
+               for(i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
+                       objtmp = sk_ASN1_OBJECT_value(reject, i);
+                       X509_add1_reject_object(x, objtmp);
+               }
+       }
+
        if (num)
                {
                for (i=1; i<=num; i++)
@@ -490,10 +608,28 @@ bad:
                                i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
                                BIO_printf(STDout,"\n");
                                }
+                       else if (aliasout == i)
+                               {
+                               unsigned char *alstr;
+                               alstr = X509_alias_get0(x, NULL);
+                               if(alstr) BIO_printf(STDout,"%s\n", alstr);
+                               else BIO_puts(STDout,"<No Alias>\n");
+                               }
                        else if (hash == i)
                                {
                                BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
                                }
+                       else if (pprint == i)
+                               {
+                               X509_PURPOSE *ptmp;
+                               int j;
+                               BIO_printf(STDout, "Certificate purposes:\n");
+                               for(j = 0; j < X509_PURPOSE_get_count(); j++)
+                                       {
+                                       ptmp = X509_PURPOSE_get0(j);
+                                       purpose_print(STDout, x, ptmp);
+                                       }
+                               }
                        else
                                if (modulus == i)
                                {
@@ -521,6 +657,21 @@ bad:
                                BIO_printf(STDout,"\n");
                                EVP_PKEY_free(pkey);
                                }
+                       else
+                               if (pubkey == i)
+                               {
+                               EVP_PKEY *pkey;
+
+                               pkey=X509_get_pubkey(x);
+                               if (pkey == NULL)
+                                       {
+                                       BIO_printf(bio_err,"Error getting public key\n");
+                                       ERR_print_errors(bio_err);
+                                       goto end;
+                                       }
+                               PEM_write_bio_PUBKEY(STDout, pkey);
+                               EVP_PKEY_free(pkey);
+                               }
                        else
                                if (C == i)
                                {
@@ -598,12 +749,13 @@ bad:
                                unsigned int n;
                                unsigned char md[EVP_MAX_MD_SIZE];
 
-                               if (!X509_digest(x,EVP_md5(),md,&n))
+                               if (!X509_digest(x,digest,md,&n))
                                        {
                                        BIO_printf(bio_err,"out of memory\n");
                                        goto end;
                                        }
-                               BIO_printf(STDout,"MD5 Fingerprint=");
+                               BIO_printf(STDout,"%s Fingerprint=",
+                                               OBJ_nid2sn(EVP_MD_type(digest)));
                                for (j=0; j<(int)n; j++)
                                        {
                                        BIO_printf(STDout,"%02X%c",md[j],
@@ -618,7 +770,7 @@ bad:
                                BIO_printf(bio_err,"Getting Private key\n");
                                if (Upkey == NULL)
                                        {
-                                       Upkey=load_key(keyfile,keyformat);
+                                       Upkey=load_key(keyfile,keyformat, passin);
                                        if (Upkey == NULL) goto end;
                                        }
 #ifndef NO_DSA
@@ -626,7 +778,8 @@ bad:
                                        digest=EVP_dss1();
 #endif
 
-                               if (!sign(x,Upkey,days,digest,
+                               assert(need_rand);
+                               if (!sign(x,Upkey,days,clrext,digest,
                                                 extconf, extsect)) goto end;
                                }
                        else if (CA_flag == i)
@@ -634,7 +787,7 @@ bad:
                                BIO_printf(bio_err,"Getting CA Private Key\n");
                                if (CAkeyfile != NULL)
                                        {
-                                       CApkey=load_key(CAkeyfile,CAkeyformat);
+                                       CApkey=load_key(CAkeyfile,CAkeyformat, passin);
                                        if (CApkey == NULL) goto end;
                                        }
 #ifndef NO_DSA
@@ -642,8 +795,9 @@ bad:
                                        digest=EVP_dss1();
 #endif
                                
+                               assert(need_rand);
                                if (!x509_certify(ctx,CAfile,digest,x,xca,
-                                       CApkey, CAserial,CA_createserial,days,
+                                       CApkey, CAserial,CA_createserial,days, clrext,
                                        extconf, extsect))
                                        goto end;
                                }
@@ -659,13 +813,16 @@ bad:
                                        }
                                else
                                        {
-                                       pk=load_key(keyfile,FORMAT_PEM);
+                                       pk=load_key(keyfile,FORMAT_PEM, passin);
                                        if (pk == NULL) goto end;
                                        }
 
                                BIO_printf(bio_err,"Generating certificate request\n");
 
-                               rq=X509_to_X509_REQ(x,pk,EVP_md5());
+                               if (pk->type == EVP_PKEY_DSA)
+                                       digest=EVP_dss1();
+
+                               rq=X509_to_X509_REQ(x,pk,digest);
                                EVP_PKEY_free(pk);
                                if (rq == NULL)
                                        {
@@ -690,9 +847,10 @@ bad:
 
        if      (outformat == FORMAT_ASN1)
                i=i2d_X509_bio(out,x);
-       else if (outformat == FORMAT_PEM)
-               i=PEM_write_bio_X509(out,x);
-       else if (outformat == FORMAT_NETSCAPE)
+       else if (outformat == FORMAT_PEM) {
+               if(trustout) i=PEM_write_bio_X509_AUX(out,x);
+               else i=PEM_write_bio_X509(out,x);
+       } else if (outformat == FORMAT_NETSCAPE)
                {
                ASN1_HEADER ah;
                ASN1_OCTET_STRING os;
@@ -717,6 +875,8 @@ bad:
                }
        ret=0;
 end:
+       if (need_rand)
+               app_RAND_write_file(NULL, bio_err);
        OBJ_cleanup();
        CONF_free(extconf);
        BIO_free(out);
@@ -728,13 +888,15 @@ end:
        EVP_PKEY_free(Upkey);
        EVP_PKEY_free(CApkey);
        X509_REQ_free(rq);
-       X509V3_EXT_cleanup();
+       sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
+       sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
+       if(passin) Free(passin);
        EXIT(ret);
        }
 
 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
             X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
-            int days, LHASH *conf, char *section)
+            int days, int clrext, LHASH *conf, char *section)
        {
        int ret=0;
        BIO *io=NULL;
@@ -750,7 +912,7 @@ static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
        EVP_PKEY_free(upkey);
 
        X509_STORE_CTX_init(&xsc,ctx,x,NULL);
-       buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
+       buf=Malloc(EVP_PKEY_size(pkey)*2+
                ((serialfile == NULL)
                        ?(strlen(CAfile)+strlen(POSTFIX)+1)
                        :(strlen(serialfile)))+1);
@@ -792,8 +954,8 @@ static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
                        }
                else
                        {
-                       ASN1_INTEGER_set(bs,0);
-                       BN_zero(serial);
+                       ASN1_INTEGER_set(bs,1);
+                       BN_one(serial);
                        }
                }
        else 
@@ -855,24 +1017,16 @@ static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
        if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
                goto end;
 
-       /* don't save DSA parameters in child if parent has them
-        * and the parents and the childs are the same. */
-       upkey=X509_get_pubkey(x);
-       if (!EVP_PKEY_missing_parameters(pkey) &&
-               (EVP_PKEY_cmp_parameters(pkey,upkey) == 0))
-               {
-               EVP_PKEY_save_parameters(upkey,0);
-               /* Force a re-write */
-               X509_set_pubkey(x,upkey);
-               }
-       EVP_PKEY_free(upkey);
+       if(clrext) {
+               while(X509_get_ext_count(x) > 0) X509_delete_ext(x, 0);
+       }
 
        if(conf) {
-               X509V3_CTX ctx;
+               X509V3_CTX ctx2;
                X509_set_version(x,2); /* version 3 certificate */
-                X509V3_set_ctx(&ctx, xca, x, NULL, NULL, 0);
-                X509V3_set_conf_lhash(&ctx, conf);
-                if(!X509V3_EXT_add_conf(conf, &ctx, section, x)) goto end;
+                X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
+                X509V3_set_conf_lhash(&ctx2, conf);
+                if(!X509V3_EXT_add_conf(conf, &ctx2, section, x)) goto end;
        }
 
        if (!X509_sign(x,pkey,digest)) goto end;
@@ -921,7 +1075,7 @@ static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx)
                }
        }
 
-static EVP_PKEY *load_key(char *file, int format)
+static EVP_PKEY *load_key(char *file, int format, char *passin)
        {
        BIO *key=NULL;
        EVP_PKEY *pkey=NULL;
@@ -942,25 +1096,13 @@ static EVP_PKEY *load_key(char *file, int format)
                perror(file);
                goto end;
                }
-#ifndef NO_RSA
-       if      (format == FORMAT_ASN1)
+       if (format == FORMAT_ASN1)
                {
-               RSA *rsa;
-
-               rsa=d2i_RSAPrivateKey_bio(key,NULL);
-               if (rsa != NULL)
-                       {
-                       if ((pkey=EVP_PKEY_new()) != NULL)
-                               EVP_PKEY_assign_RSA(pkey,rsa);
-                       else
-                               RSA_free(rsa);
-                       }
+               pkey=d2i_PrivateKey_bio(key, NULL);
                }
-       else
-#endif
-               if (format == FORMAT_PEM)
+       else if (format == FORMAT_PEM)
                {
-               pkey=PEM_read_bio_PrivateKey(key,NULL,NULL);
+               pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,passin);
                }
        else
                {
@@ -1043,7 +1185,7 @@ static X509 *load_cert(char *file, int format)
                ah->data=NULL;
                }
        else if (format == FORMAT_PEM)
-               x=PEM_read_bio_X509(cert,NULL,NULL);
+               x=PEM_read_bio_X509_AUX(cert,NULL,NULL,NULL);
        else    {
                BIO_printf(bio_err,"bad input format specified for input cert\n");
                goto end;
@@ -1061,7 +1203,7 @@ end:
        }
 
 /* self sign */
-static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest, 
+static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext, const EVP_MD *digest, 
                                                LHASH *conf, char *section)
        {
 
@@ -1083,6 +1225,9 @@ static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest,
                goto err;
 
        if (!X509_set_pubkey(x,pkey)) goto err;
+       if(clrext) {
+               while(X509_get_ext_count(x) > 0) X509_delete_ext(x, 0);
+       }
        if(conf) {
                X509V3_CTX ctx;
                X509_set_version(x,2); /* version 3 certificate */
@@ -1096,3 +1241,22 @@ err:
        ERR_print_errors(bio_err);
        return(0);
        }
+
+static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
+{
+       int id, i, idret;
+       char *pname;
+       id = X509_PURPOSE_get_id(pt);
+       pname = X509_PURPOSE_get0_name(pt);
+       for(i = 0; i < 2; i++) {
+               idret = X509_check_purpose(cert, id, i);
+               BIO_printf(bio, "%s%s : ", pname, i ? " CA" : ""); 
+               if(idret == 1) BIO_printf(bio, "Yes\n");
+               else if (idret == 0) BIO_printf(bio, "No\n");
+               else BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
+       }
+       return 1;
+}
+
+
+