/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
+#include <openssl/asn1t.h>
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
- OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM
+ OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM,
+ OPT_ITEM
} OPTION_CHOICE;
-OPTIONS asn1parse_options[] = {
+const OPTIONS asn1parse_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
{"in", OPT_IN, '<', "input file"},
{OPT_MORE_STR, 0, 0, "(-inform will be ignored)"},
{"strictpem", OPT_STRICTPEM, 0,
"do not attempt base64 decode outside PEM markers"},
+ {"item", OPT_ITEM, 's', "item to parse and print"},
{NULL}
};
-static int do_generate(char *genstr, char *genconf, BUF_MEM *buf);
+static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf);
int asn1parse_main(int argc, char **argv)
{
BUF_MEM *buf = NULL;
STACK_OF(OPENSSL_STRING) *osk = NULL;
char *genstr = NULL, *genconf = NULL;
- char *infile = NULL, *str = NULL, *oidfile = NULL, *derfile = NULL;
+ char *infile = NULL, *oidfile = NULL, *derfile = NULL;
+ unsigned char *str = NULL;
char *name = NULL, *header = NULL, *prog;
const unsigned char *ctmpbuf;
int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
unsigned char *tmpbuf;
unsigned int length = 0;
OPTION_CHOICE o;
+ const ASN1_ITEM *it = NULL;
prog = opt_init(argc, argv, asn1parse_options);
strictpem = 1;
informat = FORMAT_PEM;
break;
+ case OPT_ITEM:
+ it = ASN1_ITEM_lookup(opt_arg());
+ if (it == NULL) {
+ size_t tmp;
+
+ BIO_printf(bio_err, "Unknown item name %s\n", opt_arg());
+ BIO_puts(bio_err, "Supported types:\n");
+ for (tmp = 0;; tmp++) {
+ it = ASN1_ITEM_get(tmp);
+ if (it == NULL)
+ break;
+ BIO_printf(bio_err, " %s\n", it->sname);
+ }
+ goto end;
+ }
+ break;
}
}
argc = opt_num_rest();
goto end;
if (strictpem) {
- if (PEM_read_bio(in, &name, &header, (unsigned char **)&str, &num) !=
+ if (PEM_read_bio(in, &name, &header, &str, &num) !=
1) {
BIO_printf(bio_err, "Error reading PEM file\n");
ERR_print_errors(bio_err);
ERR_print_errors(bio_err);
goto end;
}
- }
-
- else {
+ } else {
if (informat == FORMAT_PEM) {
BIO *tmp;
num += i;
}
}
- str = buf->data;
+ str = (unsigned char *)buf->data;
}
/* If any structs to parse go through in sequence */
if (sk_OPENSSL_STRING_num(osk)) {
- tmpbuf = (unsigned char *)str;
+ tmpbuf = str;
tmplen = num;
for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
ASN1_TYPE *atmp;
tmpbuf = at->value.asn1_string->data;
tmplen = at->value.asn1_string->length;
}
- str = (char *)tmpbuf;
+ str = tmpbuf;
num = tmplen;
}
if ((length == 0) || ((long)length > num))
length = (unsigned int)num;
- if (derout) {
+ if (derout != NULL) {
if (BIO_write(derout, str + offset, length) != (int)length) {
BIO_printf(bio_err, "Error writing output\n");
ERR_print_errors(bio_err);
goto end;
}
}
- if (!noout &&
- !ASN1_parse_dump(bio_out, (unsigned char *)&(str[offset]), length,
- indent, dump)) {
- ERR_print_errors(bio_err);
- goto end;
+ if (!noout) {
+ const unsigned char *p = str + offset;
+
+ if (it != NULL) {
+ ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it);
+ if (value == NULL) {
+ BIO_printf(bio_err, "Error parsing item %s\n", it->sname);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ ASN1_item_print(bio_out, value, 0, it, NULL);
+ ASN1_item_free(value, it);
+ } else {
+ if (!ASN1_parse_dump(bio_out, p, length, indent, dump)) {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
}
ret = 0;
end:
return (ret);
}
-static int do_generate(char *genstr, char *genconf, BUF_MEM *buf)
+static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf)
{
CONF *cnf = NULL;
int len;
unsigned char *p;
ASN1_TYPE *atyp = NULL;
- if (genconf) {
+ if (genconf != NULL) {
if ((cnf = app_load_config(genconf)) == NULL)
goto err;
- if (!genstr)
+ if (genstr == NULL)
genstr = NCONF_get_string(cnf, "default", "asn1");
- if (!genstr) {
+ if (genstr == NULL) {
BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf);
goto err;
}
NCONF_free(cnf);
cnf = NULL;
- if (!atyp)
+ if (atyp == NULL)
return -1;
len = i2d_ASN1_TYPE(atyp, NULL);