- 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(CERT_HDR,(char *)ah->header->data,
- ah->header->length) != 0))
- {
- BIO_printf(bio_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 {
- BIO_printf(bio_err,"bad input format specified for input cert\n");
- goto end;
- }
-end:
- if (x == NULL)
- {
- BIO_printf(bio_err,"unable to load certificate\n");
- ERR_print_errors(bio_err);
- }
- if (ah != NULL) ASN1_HEADER_free(ah);
- if (cert != NULL) BIO_free(cert);
- if (buf != NULL) BUF_MEM_free(buf);
- return(x);