int MAIN(int, char **);
+static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);
+
int MAIN(int argc, char **argv)
{
int i,badops=0,offset=0,ret=1,j;
BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
int informat,indent=0, noout = 0, dump = 0;
char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
+ char *genstr=NULL, *genconf=NULL;
unsigned char *tmpbuf;
+ const unsigned char *ctmpbuf;
BUF_MEM *buf=NULL;
STACK *osk=NULL;
ASN1_TYPE *at=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;
+
prog=argv[0];
argc--;
argv++;
if (--argc < 1) goto bad;
sk_push(osk,*(++argv));
}
+ else if (strcmp(*argv,"-genstr") == 0)
+ {
+ if (--argc < 1) goto bad;
+ genstr= *(++argv);
+ }
+ else if (strcmp(*argv,"-genconf") == 0)
+ {
+ if (--argc < 1) goto bad;
+ genconf= *(++argv);
+ }
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
bad:
BIO_printf(bio_err,"%s [options] <infile\n",prog);
BIO_printf(bio_err,"where options are\n");
- BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n");
+ BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
BIO_printf(bio_err," -in arg input file\n");
- BIO_printf(bio_err," -out arg output file\n");
+ BIO_printf(bio_err," -out arg output file (output format is always DER\n");
BIO_printf(bio_err," -noout arg don't produce any output\n");
BIO_printf(bio_err," -offset arg offset into file\n");
BIO_printf(bio_err," -length arg length of section in file\n");
BIO_printf(bio_err," -strparse offset\n");
BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
BIO_printf(bio_err," ASN1 blob wrappings\n");
- BIO_printf(bio_err," -out filename output DER encoding to file\n");
+ BIO_printf(bio_err," -genstr str string to generate ASN1 structure from\n");
+ BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
goto end;
}
if ((buf=BUF_MEM_new()) == NULL) goto end;
if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
- if (informat == FORMAT_PEM)
+ if (genstr || genconf)
{
- BIO *tmp;
-
- if ((b64=BIO_new(BIO_f_base64())) == NULL)
+ num = do_generate(bio_err, genstr, genconf, buf);
+ if (num < 0)
+ {
+ ERR_print_errors(bio_err);
goto end;
- BIO_push(b64,in);
- tmp=in;
- in=b64;
- b64=tmp;
+ }
}
- num=0;
- for (;;)
+ else
{
- if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
- i=BIO_read(in,&(buf->data[num]),BUFSIZ);
- if (i <= 0) break;
- num+=i;
+
+ if (informat == FORMAT_PEM)
+ {
+ BIO *tmp;
+
+ if ((b64=BIO_new(BIO_f_base64())) == NULL)
+ goto end;
+ BIO_push(b64,in);
+ tmp=in;
+ in=b64;
+ b64=tmp;
+ }
+
+ num=0;
+ for (;;)
+ {
+ if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
+ i=BIO_read(in,&(buf->data[num]),BUFSIZ);
+ if (i <= 0) break;
+ num+=i;
+ }
}
str=buf->data;
for (i=0; i<sk_num(osk); i++)
{
ASN1_TYPE *atmp;
+ int typ;
j=atoi(sk_value(osk,i));
if (j == 0)
{
tmpbuf+=j;
tmplen-=j;
atmp = at;
- at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
+ ctmpbuf = tmpbuf;
+ at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
ASN1_TYPE_free(atmp);
if(!at)
{
ERR_print_errors(bio_err);
goto end;
}
+ typ = ASN1_TYPE_get(at);
+ if ((typ == V_ASN1_OBJECT)
+ || (typ == V_ASN1_NULL))
+ {
+ BIO_printf(bio_err, "Can't parse %s type\n",
+ typ == V_ASN1_NULL ? "NULL" : "OBJECT");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
/* hmm... this is a little evil but it works */
tmpbuf=at->value.asn1_string->data;
tmplen=at->value.asn1_string->length;
num=tmplen;
}
- if (length == 0) length=(unsigned int)num;
+ if (offset >= num)
+ {
+ BIO_printf(bio_err, "Error: offset too large\n");
+ goto end;
+ }
+
+ num -= offset;
+
+ if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
if(derout) {
if(BIO_write(derout, str + offset, length) != (int)length) {
BIO_printf(bio_err, "Error writing output\n");
if (at != NULL) ASN1_TYPE_free(at);
if (osk != NULL) sk_free(osk);
OBJ_cleanup();
- EXIT(ret);
+ apps_shutdown();
+ OPENSSL_EXIT(ret);
}
+static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
+ {
+ CONF *cnf = NULL;
+ int len;
+ long errline;
+ unsigned char *p;
+ ASN1_TYPE *atyp = NULL;
+
+ if (genconf)
+ {
+ cnf = NCONF_new(NULL);
+ if (!NCONF_load(cnf, genconf, &errline))
+ goto conferr;
+ if (!genstr)
+ genstr = NCONF_get_string(cnf, "default", "asn1");
+ if (!genstr)
+ {
+ BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
+ goto err;
+ }
+ }
+
+ atyp = ASN1_generate_nconf(genstr, cnf);
+ NCONF_free(cnf);
+
+ if (!atyp)
+ return -1;
+
+ len = i2d_ASN1_TYPE(atyp, NULL);
+
+ if (len <= 0)
+ goto err;
+
+ if (!BUF_MEM_grow(buf,len))
+ goto err;
+
+ p=(unsigned char *)buf->data;
+
+ i2d_ASN1_TYPE(atyp, &p);
+
+ ASN1_TYPE_free(atyp);
+ return len;
+
+ conferr:
+
+ if (errline > 0)
+ BIO_printf(bio, "Error on line %ld of config file '%s'\n",
+ errline, genconf);
+ else
+ BIO_printf(bio, "Error loading config file '%s'\n", genconf);
+
+ err:
+ NCONF_free(cnf);
+ ASN1_TYPE_free(atyp);
+
+ return -1;
+
+ }
projects / openssl.git / blobdiff