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openssl/apps/apps.c
Dr. Stephen Henson 094fe66d9f Fix some typose in the i2d/d2i functions that 
call the i2c/c2i (they were not using the
content length for the headers).

Fix ASN1 long form tag encoding. This never
worked but it was never tested since it is
only used for tags > 30.

New options to smime program to allow the
PKCS#7 format to be specified and the content
supplied externally.
2000-07-10 18:33:05 +00:00

656 lines
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/* 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
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
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);
}
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);
}
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