apps/apps.c - third_party/openssl - Git at Google

 /* apps/apps.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:
  * 1. Redistributions of source code must retain the copyright
  *    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 the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *    "This product includes cryptographic software written by
  *     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
  *    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
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * 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 <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #define NON_MAIN
 #include "apps.h"
 #undef NON_MAIN
 #include <openssl/err.h>
 #include <openssl/x509.h>
 #include <openssl/pem.h>
 #include <openssl/pkcs12.h>
 #include <openssl/safestack.h>

 #ifdef WINDOWS
 #  include "bss_file.c"
 #endif

 typedef struct {
 	char *name;
 	unsigned long flag;
 	unsigned long mask;
 } NAME_EX_TBL;

 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl);

 int app_init(long mesgwin);
 #ifdef undef /* never finished - probably never will be :-) */
 int args_from_file(char *file, int *argc, char **argv[])
 	{
 	FILE *fp;
 	int num,i;
 	unsigned int len;
 	static char *buf=NULL;
 	static char **arg=NULL;
 	char *p;
 	struct stat stbuf;

 	if (stat(file,&stbuf) < 0) return(0);

 	fp=fopen(file,"r");
 	if (fp == NULL)
 		return(0);

 	*argc=0;
 	*argv=NULL;

 	len=(unsigned int)stbuf.st_size;
 	if (buf != NULL) OPENSSL_free(buf);
 	buf=(char *)OPENSSL_malloc(len+1);
 	if (buf == NULL) return(0);

 	len=fread(buf,1,len,fp);
 	if (len <= 1) return(0);
 	buf[len]='\0';

 	i=0;
 	for (p=buf; *p; p++)
 		if (*p == '\n') i++;
 	if (arg != NULL) OPENSSL_free(arg);
 	arg=(char **)OPENSSL_malloc(sizeof(char *)*(i*2));

 	*argv=arg;
 	num=0;
 	p=buf;
 	for (;;)
 		{
 		if (!*p) break;
 		if (*p == '#') /* comment line */
 			{
 			while (*p && (*p != '\n')) p++;
 			continue;
 			}
 		/* else we have a line */
 		*(arg++)=p;
 		num++;
 		while (*p && ((*p != ' ') && (*p != '\t') && (*p != '\n')))
 			p++;
 		if (!*p) break;
 		if (*p == '\n')
 			{
 			*(p++)='\0';
 			continue;
 			}
 		/* else it is a tab or space */
 		p++;
 		while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 			p++;
 		if (!*p) break;
 		if (*p == '\n')
 			{
 			p++;
 			continue;
 			}
 		*(arg++)=p++;
 		num++;
 		while (*p && (*p != '\n')) p++;
 		if (!*p) break;
 		/* else *p == '\n' */
 		*(p++)='\0';
 		}
 	*argc=num;
 	return(1);
 	}
 #endif

 int str2fmt(char *s)
 	{
 	if 	((*s == 'D') || (*s == 'd'))
 		return(FORMAT_ASN1);
 	else if ((*s == 'T') || (*s == 't'))
 		return(FORMAT_TEXT);
 	else if ((*s == 'P') || (*s == 'p'))
 		return(FORMAT_PEM);
 	else if ((*s == 'N') || (*s == 'n'))
 		return(FORMAT_NETSCAPE);
 	else if ((*s == 'S') || (*s == 's'))
 		return(FORMAT_SMIME);
 	else if ((*s == '1')
 		|| (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
 		|| (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))
 		return(FORMAT_PKCS12);
 	else if ((*s == 'E') || (*s == 'e'))
 		return(FORMAT_ENGINE);
 	else
 		return(FORMAT_UNDEF);
 	}

 #if defined(MSDOS) || defined(WIN32) || defined(WIN16)
 void program_name(char *in, char *out, int size)
 	{
 	int i,n;
 	char *p=NULL;

 	n=strlen(in);
 	/* find the last '/', '\' or ':' */
 	for (i=n-1; i>0; i--)
 		{
 		if ((in[i] == '/') || (in[i] == '\\') || (in[i] == ':'))
 			{
 			p= &(in[i+1]);
 			break;
 			}
 		}
 	if (p == NULL)
 		p=in;
 	n=strlen(p);
 	/* strip off trailing .exe if present. */
 	if ((n > 4) && (p[n-4] == '.') &&
 		((p[n-3] == 'e') || (p[n-3] == 'E')) &&
 		((p[n-2] == 'x') || (p[n-2] == 'X')) &&
 		((p[n-1] == 'e') || (p[n-1] == 'E')))
 		n-=4;
 	if (n > size-1)
 		n=size-1;

 	for (i=0; i<n; i++)
 		{
 		if ((p[i] >= 'A') && (p[i] <= 'Z'))
 			out[i]=p[i]-'A'+'a';
 		else
 			out[i]=p[i];
 		}
 	out[n]='\0';
 	}
 #else
 #ifdef VMS
 void program_name(char *in, char *out, int size)
 	{
 	char *p=in, *q;
 	char *chars=":]>";

 	while(*chars != '\0')
 		{
 		q=strrchr(p,*chars);
 		if (q > p)
 			p = q + 1;
 		chars++;
 		}

 	q=strrchr(p,'.');
 	if (q == NULL)
 		q = in+size;
 	strncpy(out,p,q-p);
 	out[q-p]='\0';
 	}
 #else
 void program_name(char *in, char *out, int size)
 	{
 	char *p;

 	p=strrchr(in,'/');
 	if (p != NULL)
 		p++;
 	else
 		p=in;
 	strncpy(out,p,size-1);
 	out[size-1]='\0';
 	}
 #endif
 #endif

 #ifdef WIN32
 int WIN32_rename(char *from, char *to)
 	{
 #ifdef WINNT
 	int ret;
 /* Note: MoveFileEx() doesn't work under Win95, Win98 */

 	ret=MoveFileEx(from,to,MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED);
 	return(ret?0:-1);
 #else
 	unlink(to);
 	return MoveFile(from, to);
 #endif
 	}
 #endif

 int chopup_args(ARGS *arg, char *buf, int *argc, char **argv[])
 	{
 	int num,len,i;
 	char *p;

 	*argc=0;
 	*argv=NULL;

 	len=strlen(buf);
 	i=0;
 	if (arg->count == 0)
 		{
 		arg->count=20;
 		arg->data=(char **)OPENSSL_malloc(sizeof(char *)*arg->count);
 		}
 	for (i=0; i<arg->count; i++)
 		arg->data[i]=NULL;

 	num=0;
 	p=buf;
 	for (;;)
 		{
 		/* first scan over white space */
 		if (!*p) break;
 		while (*p && ((*p == ' ') || (*p == '\t') || (*p == '\n')))
 			p++;
 		if (!*p) break;

 		/* The start of something good :-) */
 		if (num >= arg->count)
 			{
 			arg->count+=20;
 			arg->data=(char **)OPENSSL_realloc(arg->data,
 				sizeof(char *)*arg->count);
 			if (argc == 0) return(0);
 			}
 		arg->data[num++]=p;

 		/* now look for the end of this */
 		if ((*p == '\'') || (*p == '\"')) /* scan for closing quote */
 			{
 			i= *(p++);
 			arg->data[num-1]++; /* jump over quote */
 			while (*p && (*p != i))
 				p++;
 			*p='\0';
 			}
 		else
 			{
 			while (*p && ((*p != ' ') &&
 				(*p != '\t') && (*p != '\n')))
 				p++;

 			if (*p == '\0')
 				p--;
 			else
 				*p='\0';
 			}
 		p++;
 		}
 	*argc=num;
 	*argv=arg->data;
 	return(1);
 	}

 #ifndef APP_INIT
 int app_init(long mesgwin)
 	{
 	return(1);
 	}
 #endif


 int dump_cert_text (BIO *out, X509 *x)
 {
 	char buf[256];
 	X509_NAME_oneline(X509_get_subject_name(x),buf,256);
 	BIO_puts(out,"subject=");
 	BIO_puts(out,buf);

 	X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
 	BIO_puts(out,"\nissuer= ");
 	BIO_puts(out,buf);
 	BIO_puts(out,"\n");
         return 0;
 }

 static char *app_get_pass(BIO *err, char *arg, int keepbio);

 int app_passwd(BIO *err, char *arg1, char *arg2, char **pass1, char **pass2)
 {
 	int same;
 	if(!arg2 || !arg1 || strcmp(arg1, arg2)) same = 0;
 	else same = 1;
 	if(arg1) {
 		*pass1 = app_get_pass(err, arg1, same);
 		if(!*pass1) return 0;
 	} else if(pass1) *pass1 = NULL;
 	if(arg2) {
 		*pass2 = app_get_pass(err, arg2, same ? 2 : 0);
 		if(!*pass2) return 0;
 	} else if(pass2) *pass2 = NULL;
 	return 1;
 }

 static char *app_get_pass(BIO *err, char *arg, int keepbio)
 {
 	char *tmp, tpass[APP_PASS_LEN];
 	static BIO *pwdbio = NULL;
 	int i;
 	if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
 	if(!strncmp(arg, "env:", 4)) {
 		tmp = getenv(arg + 4);
 		if(!tmp) {
 			BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
 			return NULL;
 		}
 		return BUF_strdup(tmp);
 	}
 	if(!keepbio || !pwdbio) {
 		if(!strncmp(arg, "file:", 5)) {
 			pwdbio = BIO_new_file(arg + 5, "r");
 			if(!pwdbio) {
 				BIO_printf(err, "Can't open file %s\n", arg + 5);
 				return NULL;
 			}
 		} else if(!strncmp(arg, "fd:", 3)) {
 			BIO *btmp;
 			i = atoi(arg + 3);
 			if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
 			if((i < 0) || !pwdbio) {
 				BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
 				return NULL;
 			}
 			/* Can't do BIO_gets on an fd BIO so add a buffering BIO */
 			btmp = BIO_new(BIO_f_buffer());
 			pwdbio = BIO_push(btmp, pwdbio);
 		} else if(!strcmp(arg, "stdin")) {
 			pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
 			if(!pwdbio) {
 				BIO_printf(err, "Can't open BIO for stdin\n");
 				return NULL;
 			}
 		} else {
 			BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
 			return NULL;
 		}
 	}
 	i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
 	if(keepbio != 1) {
 		BIO_free_all(pwdbio);
 		pwdbio = NULL;
 	}
 	if(i <= 0) {
 		BIO_printf(err, "Error reading password from BIO\n");
 		return NULL;
 	}
 	tmp = strchr(tpass, '\n');
 	if(tmp) *tmp = 0;
 	return BUF_strdup(tpass);
 }

 int add_oid_section(BIO *err, LHASH *conf)
 {
 	char *p;
 	STACK_OF(CONF_VALUE) *sktmp;
 	CONF_VALUE *cnf;
 	int i;
 	if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
 	if(!(sktmp = CONF_get_section(conf, p))) {
 		BIO_printf(err, "problem loading oid section %s\n", p);
 		return 0;
 	}
 	for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
 		cnf = sk_CONF_VALUE_value(sktmp, i);
 		if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
 			BIO_printf(err, "problem creating object %s=%s\n",
 							 cnf->name, cnf->value);
 			return 0;
 		}
 	}
 	return 1;
 }

 X509 *load_cert(BIO *err, char *file, int format)
 	{
 	ASN1_HEADER *ah=NULL;
 	BUF_MEM *buf=NULL;
 	X509 *x=NULL;
 	BIO *cert;

 	if ((cert=BIO_new(BIO_s_file())) == NULL)
 		{
 		ERR_print_errors(err);
 		goto end;
 		}

 	if (file == NULL)
 		BIO_set_fp(cert,stdin,BIO_NOCLOSE);
 	else
 		{
 		if (BIO_read_filename(cert,file) <= 0)
 			{
 			perror(file);
 			goto end;
 			}
 		}

 	if 	(format == FORMAT_ASN1)
 		x=d2i_X509_bio(cert,NULL);
 	else if (format == FORMAT_NETSCAPE)
 		{
 		unsigned char *p,*op;
 		int size=0,i;

 		/* We sort of have to do it this way because it is sort of nice
 		 * to read the header first and check it, then
 		 * try to read the certificate */
 		buf=BUF_MEM_new();
 		for (;;)
 			{
 			if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
 				goto end;
 			i=BIO_read(cert,&(buf->data[size]),1024*10);
 			size+=i;
 			if (i == 0) break;
 			if (i < 0)
 				{
 				perror("reading certificate");
 				goto end;
 				}
 			}
 		p=(unsigned char *)buf->data;
 		op=p;

 		/* First load the header */
 		if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
 			goto end;
 		if ((ah->header == NULL) || (ah->header->data == NULL) ||
 			(strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
 			ah->header->length) != 0))
 			{
 			BIO_printf(err,"Error reading header on certificate\n");
 			goto end;
 			}
 		/* header is ok, so now read the object */
 		p=op;
 		ah->meth=X509_asn1_meth();
 		if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
 			goto end;
 		x=(X509 *)ah->data;
 		ah->data=NULL;
 		}
 	else if (format == FORMAT_PEM)
 		x=PEM_read_bio_X509_AUX(cert,NULL,NULL,NULL);
 	else if (format == FORMAT_PKCS12)
 		{
 		PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);

 		PKCS12_parse(p12, NULL, NULL, &x, NULL);
 		PKCS12_free(p12);
 		p12 = NULL;
 		}
 	else	{
 		BIO_printf(err,"bad input format specified for input cert\n");
 		goto end;
 		}
 end:
 	if (x == NULL)
 		{
 		BIO_printf(err,"unable to load certificate\n");
 		ERR_print_errors(err);
 		}
 	if (ah != NULL) ASN1_HEADER_free(ah);
 	if (cert != NULL) BIO_free(cert);
 	if (buf != NULL) BUF_MEM_free(buf);
 	return(x);
 	}

 EVP_PKEY *load_key(BIO *err, char *file, int format, char *pass)
 	{
 	BIO *key=NULL;
 	EVP_PKEY *pkey=NULL;

 	if (file == NULL)
 		{
 		BIO_printf(err,"no keyfile specified\n");
 		goto end;
 		}
 	key=BIO_new(BIO_s_file());
 	if (key == NULL)
 		{
 		ERR_print_errors(err);
 		goto end;
 		}
 	if (BIO_read_filename(key,file) <= 0)
 		{
 		perror(file);
 		goto end;
 		}
 	if (format == FORMAT_ASN1)
 		{
 		pkey=d2i_PrivateKey_bio(key, NULL);
 		}
 	else if (format == FORMAT_PEM)
 		{
 		pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,pass);
 		}
 	else if (format == FORMAT_PKCS12)
 		{
 		PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);

 		PKCS12_parse(p12, pass, &pkey, NULL, NULL);
 		PKCS12_free(p12);
 		p12 = NULL;
 		}
 	else
 		{
 		BIO_printf(err,"bad input format specified for key\n");
 		goto end;
 		}
  end:
 	if (key != NULL) BIO_free(key);
 	if (pkey == NULL)
 		BIO_printf(err,"unable to load Private Key\n");
 	return(pkey);
 	}

 EVP_PKEY *load_pubkey(BIO *err, char *file, int format)
 	{
 	BIO *key=NULL;
 	EVP_PKEY *pkey=NULL;

 	if (file == NULL)
 		{
 		BIO_printf(err,"no keyfile specified\n");
 		goto end;
 		}
 	key=BIO_new(BIO_s_file());
 	if (key == NULL)
 		{
 		ERR_print_errors(err);
 		goto end;
 		}
 	if (BIO_read_filename(key,file) <= 0)
 		{
 		perror(file);
 		goto end;
 		}
 	if (format == FORMAT_ASN1)
 		{
 		pkey=d2i_PUBKEY_bio(key, NULL);
 		}
 	else if (format == FORMAT_PEM)
 		{
 		pkey=PEM_read_bio_PUBKEY(key,NULL,NULL,NULL);
 		}
 	else
 		{
 		BIO_printf(err,"bad input format specified for key\n");
 		goto end;
 		}
  end:
 	if (key != NULL) BIO_free(key);
 	if (pkey == NULL)
 		BIO_printf(err,"unable to load Public Key\n");
 	return(pkey);
 	}

 STACK_OF(X509) *load_certs(BIO *err, char *file, int format)
 	{
 	BIO *certs;
 	int i;
 	STACK_OF(X509) *othercerts = NULL;
 	STACK_OF(X509_INFO) *allcerts = NULL;
 	X509_INFO *xi;

 	if((certs = BIO_new(BIO_s_file())) == NULL)
 		{
 		ERR_print_errors(err);
 		goto end;
 		}

 	if (file == NULL)
 		BIO_set_fp(certs,stdin,BIO_NOCLOSE);
 	else
 		{
 		if (BIO_read_filename(certs,file) <= 0)
 			{
 			perror(file);
 			goto end;
 			}
 		}

 	if      (format == FORMAT_PEM)
 		{
 		othercerts = sk_X509_new_null();
 		if(!othercerts)
 			{
 			sk_X509_free(othercerts);
 			othercerts = NULL;
 			goto end;
 			}
 		allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
 		for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
 			{
 			xi = sk_X509_INFO_value (allcerts, i);
 			if (xi->x509)
 				{
 				sk_X509_push(othercerts, xi->x509);
 				xi->x509 = NULL;
 				}
 			}
 		goto end;
 		}
 	else	{
 		BIO_printf(err,"bad input format specified for input cert\n");
 		goto end;
 		}
 end:
 	if (othercerts == NULL)
 		{
 		BIO_printf(err,"unable to load certificates\n");
 		ERR_print_errors(err);
 		}
 	if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
 	if (certs != NULL) BIO_free(certs);
 	return(othercerts);
 	}


 #define X509V3_EXT_UNKNOWN_MASK		(0xfL << 16)
 /* Return error for unknown extensions */
 #define X509V3_EXT_DEFAULT		0
 /* Print error for unknown extensions */
 #define X509V3_EXT_ERROR_UNKNOWN	(1L << 16)
 /* ASN1 parse unknown extensions */
 #define X509V3_EXT_PARSE_UNKNOWN	(2L << 16)
 /* BIO_dump unknown extensions */
 #define X509V3_EXT_DUMP_UNKNOWN		(3L << 16)

 int set_cert_ex(unsigned long *flags, const char *arg)
 {
 	static const NAME_EX_TBL cert_tbl[] = {
 		{ "compatible", X509_FLAG_COMPAT, 0xffffffffl},
 		{ "no_header", X509_FLAG_NO_HEADER, 0},
 		{ "no_version", X509_FLAG_NO_VERSION, 0},
 		{ "no_serial", X509_FLAG_NO_SERIAL, 0},
 		{ "no_signame", X509_FLAG_NO_SIGNAME, 0},
 		{ "no_validity", X509_FLAG_NO_VALIDITY, 0},
 		{ "no_subject", X509_FLAG_NO_SUBJECT, 0},
 		{ "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
 		{ "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
 		{ "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
 		{ "no_aux", X509_FLAG_NO_AUX, 0},
 		{ "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
 		{ "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 		{ "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 		{ "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
 		{ NULL, 0, 0}
 	};
 	return set_table_opts(flags, arg, cert_tbl);
 }

 int set_name_ex(unsigned long *flags, const char *arg)
 {
 	static const NAME_EX_TBL ex_tbl[] = {
 		{ "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
 		{ "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
 		{ "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
 		{ "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
 		{ "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
 		{ "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
 		{ "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
 		{ "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
 		{ "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
 		{ "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
 		{ "compat", XN_FLAG_COMPAT, 0xffffffffL},
 		{ "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
 		{ "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
 		{ "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
 		{ "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
 		{ "dn_rev", XN_FLAG_DN_REV, 0},
 		{ "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
 		{ "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
 		{ "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
 		{ "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
 		{ "space_eq", XN_FLAG_SPC_EQ, 0},
 		{ "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
 		{ "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
 		{ "oneline", XN_FLAG_ONELINE, 0xffffffffL},
 		{ "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
 		{ NULL, 0, 0}
 	};
 	return set_table_opts(flags, arg, ex_tbl);
 }

 static int set_table_opts(unsigned long *flags, const char *arg, const NAME_EX_TBL *in_tbl)
 {
 	char c;
 	const NAME_EX_TBL *ptbl;
 	c = arg[0];

 	if(c == '-') {
 		c = 0;
 		arg++;
 	} else if (c == '+') {
 		c = 1;
 		arg++;
 	} else c = 1;

 	for(ptbl = in_tbl; ptbl->name; ptbl++) {
 		if(!strcmp(arg, ptbl->name)) {
 			*flags &= ~ptbl->mask;
 			if(c) *flags |= ptbl->flag;
 			else *flags &= ~ptbl->flag;
 			return 1;
 		}
 	}
 	return 0;
 }

 void print_name(BIO *out, char *title, X509_NAME *nm, unsigned long lflags)
 {
 	char buf[256];
 	char mline = 0;
 	int indent = 0;
 	if(title) BIO_puts(out, title);
 	if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 		mline = 1;
 		indent = 4;
 	}
 	if(lflags == XN_FLAG_COMPAT) {
 		X509_NAME_oneline(nm,buf,256);
 		BIO_puts(out,buf);
 		BIO_puts(out, "\n");
 	} else {
 		if(mline) BIO_puts(out, "\n");
 		X509_NAME_print_ex(out, nm, indent, lflags);
 		BIO_puts(out, "\n");
 	}
 }
	/* apps/apps.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:
	* 1. Redistributions of source code must retain the copyright
	* 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 the
	* documentation and/or other materials provided with the distribution.
	* 3. All advertising materials mentioning features or use of this software
	* must display the following acknowledgement:
	* "This product includes cryptographic software written by
	* 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
	* 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
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* 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 <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <sys/types.h>
	#include <sys/stat.h>
	#define NON_MAIN
	#include "apps.h"
	#undef NON_MAIN
	#include <openssl/err.h>
	#include <openssl/x509.h>
	#include <openssl/pem.h>
	#include <openssl/pkcs12.h>
	#include <openssl/safestack.h>

	#ifdef WINDOWS
	# include "bss_file.c"
	#endif

	typedef struct {
	char *name;
	unsigned long flag;
	unsigned long mask;
	} NAME_EX_TBL;

	static int set_table_opts(unsigned long flags, const char arg, const NAME_EX_TBL *in_tbl);

	int app_init(long mesgwin);
	#ifdef undef /* never finished - probably never will be :-) */
	int args_from_file(char file, int argc, char **argv[])
	{
	FILE *fp;
	int num,i;
	unsigned int len;
	static char *buf=NULL;
	static char **arg=NULL;
	char *p;
	struct stat stbuf;

	if (stat(file,&stbuf) < 0) return(0);

	fp=fopen(file,"r");
	if (fp == NULL)
	return(0);

	*argc=0;
	*argv=NULL;

	len=(unsigned int)stbuf.st_size;
	if (buf != NULL) OPENSSL_free(buf);
	buf=(char *)OPENSSL_malloc(len+1);
	if (buf == NULL) return(0);

	len=fread(buf,1,len,fp);
	if (len <= 1) return(0);
	buf[len]='\0';

	i=0;
	for (p=buf; *p; p++)
	if (*p == '\n') i++;
	if (arg != NULL) OPENSSL_free(arg);
	arg=(char *)OPENSSL_malloc(sizeof(char )(i2));

	*argv=arg;
	num=0;
	p=buf;
	for (;;)
	{
	if (!*p) break;
	if (p == '#') / comment line */
	{
	while (p && (p != '\n')) p++;
	continue;
	}
	/* else we have a line */
	*(arg++)=p;
	num++;
	while (p && ((p != ' ') && (p != '\t') && (p != '\n')))
	p++;
	if (!*p) break;
	if (*p == '\n')
	{
	*(p++)='\0';
	continue;
	}
	/* else it is a tab or space */
	p++;
	while (p && ((p == ' ') \|\| (p == '\t') \|\| (p == '\n')))
	p++;
	if (!*p) break;
	if (*p == '\n')
	{
	p++;
	continue;
	}
	*(arg++)=p++;
	num++;
	while (p && (p != '\n')) p++;
	if (!*p) break;
	/* else p == '\n' /
	*(p++)='\0';
	}
	*argc=num;
	return(1);
	}
	#endif

	int str2fmt(char *s)
	{
	if ((s == 'D') \|\| (s == 'd'))
	return(FORMAT_ASN1);
	else if ((s == 'T') \|\| (s == 't'))
	return(FORMAT_TEXT);
	else if ((s == 'P') \|\| (s == 'p'))
	return(FORMAT_PEM);
	else if ((s == 'N') \|\| (s == 'n'))
	return(FORMAT_NETSCAPE);
	else if ((s == 'S') \|\| (s == 's'))
	return(FORMAT_SMIME);
	else if ((*s == '1')
	\|\| (strcmp(s,"PKCS12") == 0) \|\| (strcmp(s,"pkcs12") == 0)
	\|\| (strcmp(s,"P12") == 0) \|\| (strcmp(s,"p12") == 0))
	return(FORMAT_PKCS12);
	else if ((s == 'E') \|\| (s == 'e'))
	return(FORMAT_ENGINE);
	else
	return(FORMAT_UNDEF);
	}

	#if defined(MSDOS) \|\| defined(WIN32) \|\| defined(WIN16)
	void program_name(char in, char out, int size)
	{
	int i,n;
	char *p=NULL;

	n=strlen(in);
	/* find the last '/', '\' or ':' */
	for (i=n-1; i>0; i--)
	{
	if ((in[i] == '/') \|\| (in[i] == '\\') \|\| (in[i] == ':'))
	{
	p= &(in[i+1]);
	break;
	}
	}
	if (p == NULL)
	p=in;
	n=strlen(p);
	/* strip off trailing .exe if present. */
	if ((n > 4) && (p[n-4] == '.') &&
	((p[n-3] == 'e') \|\| (p[n-3] == 'E')) &&
	((p[n-2] == 'x') \|\| (p[n-2] == 'X')) &&
	((p[n-1] == 'e') \|\| (p[n-1] == 'E')))
	n-=4;
	if (n > size-1)
	n=size-1;

	for (i=0; i<n; i++)
	{
	if ((p[i] >= 'A') && (p[i] <= 'Z'))
	out[i]=p[i]-'A'+'a';
	else
	out[i]=p[i];
	}
	out[n]='\0';
	}
	#else
	#ifdef VMS
	void program_name(char in, char out, int size)
	{
	char p=in, q;
	char *chars=":]>";

	while(*chars != '\0')
	{
	q=strrchr(p,*chars);
	if (q > p)
	p = q + 1;
	chars++;
	}

	q=strrchr(p,'.');
	if (q == NULL)
	q = in+size;
	strncpy(out,p,q-p);
	out[q-p]='\0';
	}
	#else
	void program_name(char in, char out, int size)
	{
	char *p;

	p=strrchr(in,'/');
	if (p != NULL)
	p++;
	else
	p=in;
	strncpy(out,p,size-1);
	out[size-1]='\0';
	}
	#endif
	#endif

	#ifdef WIN32
	int WIN32_rename(char from, char to)
	{
	#ifdef WINNT
	int ret;
	/* Note: MoveFileEx() doesn't work under Win95, Win98 */

	ret=MoveFileEx(from,to,MOVEFILE_REPLACE_EXISTING\|MOVEFILE_COPY_ALLOWED);
	return(ret?0:-1);
	#else
	unlink(to);
	return MoveFile(from, to);
	#endif
	}
	#endif

	int chopup_args(ARGS arg, char buf, int argc, char *argv[])
	{
	int num,len,i;
	char *p;

	*argc=0;
	*argv=NULL;

	len=strlen(buf);
	i=0;
	if (arg->count == 0)
	{
	arg->count=20;
	arg->data=(char *)OPENSSL_malloc(sizeof(char )*arg->count);
	}
	for (i=0; i<arg->count; i++)
	arg->data[i]=NULL;

	num=0;
	p=buf;
	for (;;)
	{
	/* first scan over white space */
	if (!*p) break;
	while (p && ((p == ' ') \|\| (p == '\t') \|\| (p == '\n')))
	p++;
	if (!*p) break;

	/* The start of something good :-) */
	if (num >= arg->count)
	{
	arg->count+=20;
	arg->data=(char **)OPENSSL_realloc(arg->data,
	sizeof(char )arg->count);
	if (argc == 0) return(0);
	}
	arg->data[num++]=p;

	/* now look for the end of this */
	if ((p == '\'') \|\| (p == '\"')) /* scan for closing quote */
	{
	i= *(p++);
	arg->data[num-1]++; /* jump over quote */
	while (p && (p != i))
	p++;
	*p='\0';
	}
	else
	{
	while (p && ((p != ' ') &&
	(p != '\t') && (p != '\n')))
	p++;

	if (*p == '\0')
	p--;
	else
	*p='\0';
	}
	p++;
	}
	*argc=num;
	*argv=arg->data;
	return(1);
	}

	#ifndef APP_INIT
	int app_init(long mesgwin)
	{
	return(1);
	}
	#endif


	int dump_cert_text (BIO out, X509 x)
	{
	char buf[256];
	X509_NAME_oneline(X509_get_subject_name(x),buf,256);
	BIO_puts(out,"subject=");
	BIO_puts(out,buf);

	X509_NAME_oneline(X509_get_issuer_name(x),buf,256);
	BIO_puts(out,"\nissuer= ");
	BIO_puts(out,buf);
	BIO_puts(out,"\n");
	return 0;
	}

	static char app_get_pass(BIO err, char *arg, int keepbio);

	int app_passwd(BIO err, char arg1, char arg2, char pass1, char *pass2)
	{
	int same;
	if(!arg2 \|\| !arg1 \|\| strcmp(arg1, arg2)) same = 0;
	else same = 1;
	if(arg1) {
	*pass1 = app_get_pass(err, arg1, same);
	if(!*pass1) return 0;
	} else if(pass1) *pass1 = NULL;
	if(arg2) {
	*pass2 = app_get_pass(err, arg2, same ? 2 : 0);
	if(!*pass2) return 0;
	} else if(pass2) *pass2 = NULL;
	return 1;
	}

	static char app_get_pass(BIO err, char *arg, int keepbio)
	{
	char *tmp, tpass[APP_PASS_LEN];
	static BIO *pwdbio = NULL;
	int i;
	if(!strncmp(arg, "pass:", 5)) return BUF_strdup(arg + 5);
	if(!strncmp(arg, "env:", 4)) {
	tmp = getenv(arg + 4);
	if(!tmp) {
	BIO_printf(err, "Can't read environment variable %s\n", arg + 4);
	return NULL;
	}
	return BUF_strdup(tmp);
	}
	if(!keepbio \|\| !pwdbio) {
	if(!strncmp(arg, "file:", 5)) {
	pwdbio = BIO_new_file(arg + 5, "r");
	if(!pwdbio) {
	BIO_printf(err, "Can't open file %s\n", arg + 5);
	return NULL;
	}
	} else if(!strncmp(arg, "fd:", 3)) {
	BIO *btmp;
	i = atoi(arg + 3);
	if(i >= 0) pwdbio = BIO_new_fd(i, BIO_NOCLOSE);
	if((i < 0) \|\| !pwdbio) {
	BIO_printf(err, "Can't access file descriptor %s\n", arg + 3);
	return NULL;
	}
	/* Can't do BIO_gets on an fd BIO so add a buffering BIO */
	btmp = BIO_new(BIO_f_buffer());
	pwdbio = BIO_push(btmp, pwdbio);
	} else if(!strcmp(arg, "stdin")) {
	pwdbio = BIO_new_fp(stdin, BIO_NOCLOSE);
	if(!pwdbio) {
	BIO_printf(err, "Can't open BIO for stdin\n");
	return NULL;
	}
	} else {
	BIO_printf(err, "Invalid password argument \"%s\"\n", arg);
	return NULL;
	}
	}
	i = BIO_gets(pwdbio, tpass, APP_PASS_LEN);
	if(keepbio != 1) {
	BIO_free_all(pwdbio);
	pwdbio = NULL;
	}
	if(i <= 0) {
	BIO_printf(err, "Error reading password from BIO\n");
	return NULL;
	}
	tmp = strchr(tpass, '\n');
	if(tmp) *tmp = 0;
	return BUF_strdup(tpass);
	}

	int add_oid_section(BIO err, LHASH conf)
	{
	char *p;
	STACK_OF(CONF_VALUE) *sktmp;
	CONF_VALUE *cnf;
	int i;
	if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
	if(!(sktmp = CONF_get_section(conf, p))) {
	BIO_printf(err, "problem loading oid section %s\n", p);
	return 0;
	}
	for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
	cnf = sk_CONF_VALUE_value(sktmp, i);
	if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
	BIO_printf(err, "problem creating object %s=%s\n",
	cnf->name, cnf->value);
	return 0;
	}
	}
	return 1;
	}

	X509 load_cert(BIO err, char *file, int format)
	{
	ASN1_HEADER *ah=NULL;
	BUF_MEM *buf=NULL;
	X509 *x=NULL;
	BIO *cert;

	if ((cert=BIO_new(BIO_s_file())) == NULL)
	{
	ERR_print_errors(err);
	goto end;
	}

	if (file == NULL)
	BIO_set_fp(cert,stdin,BIO_NOCLOSE);
	else
	{
	if (BIO_read_filename(cert,file) <= 0)
	{
	perror(file);
	goto end;
	}
	}

	if (format == FORMAT_ASN1)
	x=d2i_X509_bio(cert,NULL);
	else if (format == FORMAT_NETSCAPE)
	{
	unsigned char p,op;
	int size=0,i;

	/* We sort of have to do it this way because it is sort of nice
	* to read the header first and check it, then
	* try to read the certificate */
	buf=BUF_MEM_new();
	for (;;)
	{
	if ((buf == NULL) \|\| (!BUF_MEM_grow(buf,size+1024*10)))
	goto end;
	i=BIO_read(cert,&(buf->data[size]),1024*10);
	size+=i;
	if (i == 0) break;
	if (i < 0)
	{
	perror("reading certificate");
	goto end;
	}
	}
	p=(unsigned char *)buf->data;
	op=p;

	/* First load the header */
	if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
	goto end;
	if ((ah->header == NULL) \|\| (ah->header->data == NULL) \|\|
	(strncmp(NETSCAPE_CERT_HDR,(char *)ah->header->data,
	ah->header->length) != 0))
	{
	BIO_printf(err,"Error reading header on certificate\n");
	goto end;
	}
	/* header is ok, so now read the object */
	p=op;
	ah->meth=X509_asn1_meth();
	if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
	goto end;
	x=(X509 *)ah->data;
	ah->data=NULL;
	}
	else if (format == FORMAT_PEM)
	x=PEM_read_bio_X509_AUX(cert,NULL,NULL,NULL);
	else if (format == FORMAT_PKCS12)
	{
	PKCS12 *p12 = d2i_PKCS12_bio(cert, NULL);

	PKCS12_parse(p12, NULL, NULL, &x, NULL);
	PKCS12_free(p12);
	p12 = NULL;
	}
	else {
	BIO_printf(err,"bad input format specified for input cert\n");
	goto end;
	}
	end:
	if (x == NULL)
	{
	BIO_printf(err,"unable to load certificate\n");
	ERR_print_errors(err);
	}
	if (ah != NULL) ASN1_HEADER_free(ah);
	if (cert != NULL) BIO_free(cert);
	if (buf != NULL) BUF_MEM_free(buf);
	return(x);
	}

	EVP_PKEY load_key(BIO err, char file, int format, char pass)
	{
	BIO *key=NULL;
	EVP_PKEY *pkey=NULL;

	if (file == NULL)
	{
	BIO_printf(err,"no keyfile specified\n");
	goto end;
	}
	key=BIO_new(BIO_s_file());
	if (key == NULL)
	{
	ERR_print_errors(err);
	goto end;
	}
	if (BIO_read_filename(key,file) <= 0)
	{
	perror(file);
	goto end;
	}
	if (format == FORMAT_ASN1)
	{
	pkey=d2i_PrivateKey_bio(key, NULL);
	}
	else if (format == FORMAT_PEM)
	{
	pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,pass);
	}
	else if (format == FORMAT_PKCS12)
	{
	PKCS12 *p12 = d2i_PKCS12_bio(key, NULL);

	PKCS12_parse(p12, pass, &pkey, NULL, NULL);
	PKCS12_free(p12);
	p12 = NULL;
	}
	else
	{
	BIO_printf(err,"bad input format specified for key\n");
	goto end;
	}
	end:
	if (key != NULL) BIO_free(key);
	if (pkey == NULL)
	BIO_printf(err,"unable to load Private Key\n");
	return(pkey);
	}

	EVP_PKEY load_pubkey(BIO err, char *file, int format)
	{
	BIO *key=NULL;
	EVP_PKEY *pkey=NULL;

	if (file == NULL)
	{
	BIO_printf(err,"no keyfile specified\n");
	goto end;
	}
	key=BIO_new(BIO_s_file());
	if (key == NULL)
	{
	ERR_print_errors(err);
	goto end;
	}
	if (BIO_read_filename(key,file) <= 0)
	{
	perror(file);
	goto end;
	}
	if (format == FORMAT_ASN1)
	{
	pkey=d2i_PUBKEY_bio(key, NULL);
	}
	else if (format == FORMAT_PEM)
	{
	pkey=PEM_read_bio_PUBKEY(key,NULL,NULL,NULL);
	}
	else
	{
	BIO_printf(err,"bad input format specified for key\n");
	goto end;
	}
	end:
	if (key != NULL) BIO_free(key);
	if (pkey == NULL)
	BIO_printf(err,"unable to load Public Key\n");
	return(pkey);
	}

	STACK_OF(X509) load_certs(BIO err, char *file, int format)
	{
	BIO *certs;
	int i;
	STACK_OF(X509) *othercerts = NULL;
	STACK_OF(X509_INFO) *allcerts = NULL;
	X509_INFO *xi;

	if((certs = BIO_new(BIO_s_file())) == NULL)
	{
	ERR_print_errors(err);
	goto end;
	}

	if (file == NULL)
	BIO_set_fp(certs,stdin,BIO_NOCLOSE);
	else
	{
	if (BIO_read_filename(certs,file) <= 0)
	{
	perror(file);
	goto end;
	}
	}

	if (format == FORMAT_PEM)
	{
	othercerts = sk_X509_new_null();
	if(!othercerts)
	{
	sk_X509_free(othercerts);
	othercerts = NULL;
	goto end;
	}
	allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
	for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
	{
	xi = sk_X509_INFO_value (allcerts, i);
	if (xi->x509)
	{
	sk_X509_push(othercerts, xi->x509);
	xi->x509 = NULL;
	}
	}
	goto end;
	}
	else {
	BIO_printf(err,"bad input format specified for input cert\n");
	goto end;
	}
	end:
	if (othercerts == NULL)
	{
	BIO_printf(err,"unable to load certificates\n");
	ERR_print_errors(err);
	}
	if (allcerts) sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
	if (certs != NULL) BIO_free(certs);
	return(othercerts);
	}


	#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
	/* Return error for unknown extensions */
	#define X509V3_EXT_DEFAULT 0
	/* Print error for unknown extensions */
	#define X509V3_EXT_ERROR_UNKNOWN (1L << 16)
	/* ASN1 parse unknown extensions */
	#define X509V3_EXT_PARSE_UNKNOWN (2L << 16)
	/* BIO_dump unknown extensions */
	#define X509V3_EXT_DUMP_UNKNOWN (3L << 16)

	int set_cert_ex(unsigned long flags, const char arg)
	{
	static const NAME_EX_TBL cert_tbl[] = {
	{ "compatible", X509_FLAG_COMPAT, 0xffffffffl},
	{ "no_header", X509_FLAG_NO_HEADER, 0},
	{ "no_version", X509_FLAG_NO_VERSION, 0},
	{ "no_serial", X509_FLAG_NO_SERIAL, 0},
	{ "no_signame", X509_FLAG_NO_SIGNAME, 0},
	{ "no_validity", X509_FLAG_NO_VALIDITY, 0},
	{ "no_subject", X509_FLAG_NO_SUBJECT, 0},
	{ "no_pubkey", X509_FLAG_NO_PUBKEY, 0},
	{ "no_extensions", X509_FLAG_NO_EXTENSIONS, 0},
	{ "no_sigdump", X509_FLAG_NO_SIGDUMP, 0},
	{ "no_aux", X509_FLAG_NO_AUX, 0},
	{ "ext_default", X509V3_EXT_DEFAULT, X509V3_EXT_UNKNOWN_MASK},
	{ "ext_error", X509V3_EXT_ERROR_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
	{ "ext_parse", X509V3_EXT_PARSE_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
	{ "ext_dump", X509V3_EXT_DUMP_UNKNOWN, X509V3_EXT_UNKNOWN_MASK},
	{ NULL, 0, 0}
	};
	return set_table_opts(flags, arg, cert_tbl);
	}

	int set_name_ex(unsigned long flags, const char arg)
	{
	static const NAME_EX_TBL ex_tbl[] = {
	{ "esc_2253", ASN1_STRFLGS_ESC_2253, 0},
	{ "esc_ctrl", ASN1_STRFLGS_ESC_CTRL, 0},
	{ "esc_msb", ASN1_STRFLGS_ESC_MSB, 0},
	{ "use_quote", ASN1_STRFLGS_ESC_QUOTE, 0},
	{ "utf8", ASN1_STRFLGS_UTF8_CONVERT, 0},
	{ "ignore_type", ASN1_STRFLGS_IGNORE_TYPE, 0},
	{ "show_type", ASN1_STRFLGS_SHOW_TYPE, 0},
	{ "dump_all", ASN1_STRFLGS_DUMP_ALL, 0},
	{ "dump_nostr", ASN1_STRFLGS_DUMP_UNKNOWN, 0},
	{ "dump_der", ASN1_STRFLGS_DUMP_DER, 0},
	{ "compat", XN_FLAG_COMPAT, 0xffffffffL},
	{ "sep_comma_plus", XN_FLAG_SEP_COMMA_PLUS, XN_FLAG_SEP_MASK},
	{ "sep_comma_plus_space", XN_FLAG_SEP_CPLUS_SPC, XN_FLAG_SEP_MASK},
	{ "sep_semi_plus_space", XN_FLAG_SEP_SPLUS_SPC, XN_FLAG_SEP_MASK},
	{ "sep_multiline", XN_FLAG_SEP_MULTILINE, XN_FLAG_SEP_MASK},
	{ "dn_rev", XN_FLAG_DN_REV, 0},
	{ "nofname", XN_FLAG_FN_NONE, XN_FLAG_FN_MASK},
	{ "sname", XN_FLAG_FN_SN, XN_FLAG_FN_MASK},
	{ "lname", XN_FLAG_FN_LN, XN_FLAG_FN_MASK},
	{ "oid", XN_FLAG_FN_OID, XN_FLAG_FN_MASK},
	{ "space_eq", XN_FLAG_SPC_EQ, 0},
	{ "dump_unknown", XN_FLAG_DUMP_UNKNOWN_FIELDS, 0},
	{ "RFC2253", XN_FLAG_RFC2253, 0xffffffffL},
	{ "oneline", XN_FLAG_ONELINE, 0xffffffffL},
	{ "multiline", XN_FLAG_MULTILINE, 0xffffffffL},
	{ NULL, 0, 0}
	};
	return set_table_opts(flags, arg, ex_tbl);
	}

	static int set_table_opts(unsigned long flags, const char arg, const NAME_EX_TBL *in_tbl)
	{
	char c;
	const NAME_EX_TBL *ptbl;
	c = arg[0];

	if(c == '-') {
	c = 0;
	arg++;
	} else if (c == '+') {
	c = 1;
	arg++;
	} else c = 1;

	for(ptbl = in_tbl; ptbl->name; ptbl++) {
	if(!strcmp(arg, ptbl->name)) {
	*flags &= ~ptbl->mask;
	if(c) *flags \|= ptbl->flag;
	else *flags &= ~ptbl->flag;
	return 1;
	}
	}
	return 0;
	}

	void print_name(BIO out, char title, X509_NAME *nm, unsigned long lflags)
	{
	char buf[256];
	char mline = 0;
	int indent = 0;
	if(title) BIO_puts(out, title);
	if((lflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
	mline = 1;
	indent = 4;
	}
	if(lflags == XN_FLAG_COMPAT) {
	X509_NAME_oneline(nm,buf,256);
	BIO_puts(out,buf);
	BIO_puts(out, "\n");
	} else {
	if(mline) BIO_puts(out, "\n");
	X509_NAME_print_ex(out, nm, indent, lflags);
	BIO_puts(out, "\n");
	}
	}