static CONF *load_config_file(const char *configfile)
{
CONF *conf = NULL;
long errorline = -1;
if (!configfile) configfile = getenv("OPENSSL_CONF");
if (!configfile) configfile = getenv("SSLEAY_CONF");
if (configfile &&
(!(conf = NCONF_new(NULL)) ||
NCONF_load(conf, configfile, &errorline) <= 0))
{
if (errorline <= 0)
BIO_printf(bio_err, "error loading the config file "
"'%s'\n", configfile);
else
BIO_printf(bio_err, "error on line %ld of config file "
"'%s'\n", errorline, configfile);
}
if (conf != NULL)
{
const char *p;
BIO_printf(bio_err,"Using configuration from %s\n", configfile);
p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
if (p != NULL)
{
BIO *oid_bio = BIO_new_file(p, "r");
if (!oid_bio)
ERR_print_errors(bio_err);
else
{
OBJ_create_objects(oid_bio);
BIO_free_all(oid_bio);
}
}
else
ERR_clear_error();
if(!add_oid_section(bio_err, conf))
ERR_print_errors(bio_err);
}
return conf;
}
static CONF *load_config_file(const char *configfile)
{
CONF *conf = app_load_config(configfile);
if (conf != NULL) {
const char *p;
BIO_printf(bio_err, "Using configuration from %s\n", configfile);
p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
if (p != NULL) {
BIO *oid_bio = BIO_new_file(p, "r");
if (!oid_bio)
ERR_print_errors(bio_err);
else {
OBJ_create_objects(oid_bio);
BIO_free_all(oid_bio);
}
} else
ERR_clear_error();
if (!add_oid_section(conf))
ERR_print_errors(bio_err);
}
return conf;
}
int MAIN(int argc, char **argv)
{
int i,badops=0,offset=0,ret=1,j;
unsigned int length=0;
long num,tmplen;
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;
unsigned char *tmpbuf;
BUF_MEM *buf=NULL;
STACK *osk=NULL;
ASN1_TYPE *at=NULL;
informat=FORMAT_PEM;
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
prog=argv[0];
argc--;
argv++;
if ((osk=sk_new_null()) == NULL)
{
BIO_printf(bio_err,"Memory allocation failure\n");
goto end;
}
while (argc >= 1)
{
if (strcmp(*argv,"-inform") == 0)
{
if (--argc < 1) goto bad;
informat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
derfile= *(++argv);
}
else if (strcmp(*argv,"-i") == 0)
{
indent=1;
}
else if (strcmp(*argv,"-noout") == 0) noout = 1;
else if (strcmp(*argv,"-oid") == 0)
{
if (--argc < 1) goto bad;
oidfile= *(++argv);
}
else if (strcmp(*argv,"-offset") == 0)
{
if (--argc < 1) goto bad;
offset= atoi(*(++argv));
}
else if (strcmp(*argv,"-length") == 0)
{
if (--argc < 1) goto bad;
length= atoi(*(++argv));
if (length == 0) goto bad;
}
else if (strcmp(*argv,"-dump") == 0)
{
dump= -1;
}
else if (strcmp(*argv,"-dlimit") == 0)
{
if (--argc < 1) goto bad;
dump= atoi(*(++argv));
if (dump <= 0) goto bad;
}
else if (strcmp(*argv,"-strparse") == 0)
{
if (--argc < 1) goto bad;
sk_push(osk,*(++argv));
}
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if (badops)
{
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," -in arg input 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," -i indent entries\n");
BIO_printf(bio_err," -dump dump unknown data in hex form\n");
BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
BIO_printf(bio_err," -oid file file of extra oid definitions\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");
goto end;
}
ERR_load_crypto_strings();
in=BIO_new(BIO_s_file());
out=BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
#ifdef VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
if (oidfile != NULL)
{
if (BIO_read_filename(in,oidfile) <= 0)
{
BIO_printf(bio_err,"problems opening %s\n",oidfile);
ERR_print_errors(bio_err);
goto end;
}
OBJ_create_objects(in);
}
if (infile == NULL)
BIO_set_fp(in,stdin,BIO_NOCLOSE);
else
{
if (BIO_read_filename(in,infile) <= 0)
{
perror(infile);
goto end;
}
}
if (derfile) {
if(!(derout = BIO_new_file(derfile, "wb"))) {
BIO_printf(bio_err,"problems opening %s\n",derfile);
ERR_print_errors(bio_err);
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)
{
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;
/* If any structs to parse go through in sequence */
if (sk_num(osk))
{
tmpbuf=(unsigned char *)str;
tmplen=num;
for (i=0; i<sk_num(osk); i++)
{
ASN1_TYPE *atmp;
j=atoi(sk_value(osk,i));
if (j == 0)
{
BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
continue;
}
tmpbuf+=j;
tmplen-=j;
atmp = at;
at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
ASN1_TYPE_free(atmp);
if(!at)
{
BIO_printf(bio_err,"Error parsing structure\n");
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;
}
str=(char *)tmpbuf;
num=tmplen;
}
if (length == 0) length=(unsigned int)num;
if(derout) {
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(out,(unsigned char *)&(str[offset]),length,
indent,dump))
{
ERR_print_errors(bio_err);
goto end;
}
ret=0;
end:
BIO_free(derout);
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free_all(out);
if (b64 != NULL) BIO_free(b64);
if (ret != 0)
ERR_print_errors(bio_err);
if (buf != NULL) BUF_MEM_free(buf);
if (at != NULL) ASN1_TYPE_free(at);
if (osk != NULL) sk_free(osk);
OBJ_cleanup();
OPENSSL_EXIT(ret);
}
int MAIN(int argc, char **argv)
{
int i, badops = 0, offset = 0, ret = 1, j;
unsigned int length = 0;
long num, tmplen;
BIO *in = NULL, *out = NULL, *b64 = NULL, *derout = NULL;
int informat, indent = 0, noout = 0, dump = 0, strictpem = 0;
char *infile = NULL, *str = NULL, *prog, *oidfile = NULL, *derfile =
NULL, *name = NULL, *header = NULL;
char *genstr = NULL, *genconf = NULL;
unsigned char *tmpbuf;
const unsigned char *ctmpbuf;
BUF_MEM *buf = NULL;
STACK_OF(OPENSSL_STRING) *osk = NULL;
ASN1_TYPE *at = NULL;
informat = FORMAT_PEM;
apps_startup();
if (bio_err == 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 ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
BIO_printf(bio_err, "Memory allocation failure\n");
goto end;
}
while (argc >= 1) {
if (strcmp(*argv, "-inform") == 0) {
if (--argc < 1)
goto bad;
informat = str2fmt(*(++argv));
} else if (strcmp(*argv, "-in") == 0) {
if (--argc < 1)
goto bad;
infile = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
derfile = *(++argv);
} else if (strcmp(*argv, "-i") == 0) {
indent = 1;
} else if (strcmp(*argv, "-noout") == 0)
noout = 1;
else if (strcmp(*argv, "-oid") == 0) {
if (--argc < 1)
goto bad;
oidfile = *(++argv);
} else if (strcmp(*argv, "-offset") == 0) {
if (--argc < 1)
goto bad;
offset = atoi(*(++argv));
} else if (strcmp(*argv, "-length") == 0) {
if (--argc < 1)
goto bad;
length = atoi(*(++argv));
if (length == 0)
goto bad;
} else if (strcmp(*argv, "-dump") == 0) {
dump = -1;
} else if (strcmp(*argv, "-dlimit") == 0) {
if (--argc < 1)
goto bad;
dump = atoi(*(++argv));
if (dump <= 0)
goto bad;
} else if (strcmp(*argv, "-strparse") == 0) {
if (--argc < 1)
goto bad;
sk_OPENSSL_STRING_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 if (strcmp(*argv, "-strictpem") == 0) {
strictpem = 1;
informat = FORMAT_PEM;
} else {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badops = 1;
break;
}
argc--;
argv++;
}
if (badops) {
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 PEM\n");
BIO_printf(bio_err, " -in arg input 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, " -i indent entries\n");
BIO_printf(bio_err, " -dump dump unknown data in hex form\n");
BIO_printf(bio_err,
" -dlimit arg dump the first arg bytes of unknown data in hex form\n");
BIO_printf(bio_err, " -oid file file of extra oid definitions\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,
" -genstr str string to generate ASN1 structure from\n");
BIO_printf(bio_err,
" -genconf file file to generate ASN1 structure from\n");
BIO_printf(bio_err,
" -strictpem do not attempt base64 decode outside PEM markers (-inform \n");
BIO_printf(bio_err, " will be ignored)\n");
goto end;
}
ERR_load_crypto_strings();
in = BIO_new(BIO_s_file());
out = BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
if (oidfile != NULL) {
if (BIO_read_filename(in, oidfile) <= 0) {
BIO_printf(bio_err, "problems opening %s\n", oidfile);
ERR_print_errors(bio_err);
goto end;
}
OBJ_create_objects(in);
}
if (infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename(in, infile) <= 0) {
perror(infile);
goto end;
}
}
if (derfile) {
if (!(derout = BIO_new_file(derfile, "wb"))) {
BIO_printf(bio_err, "problems opening %s\n", derfile);
ERR_print_errors(bio_err);
goto end;
}
}
if (strictpem) {
if (PEM_read_bio(in, &name, &header, (unsigned char **)&str, &num) !=
1) {
BIO_printf(bio_err, "Error reading PEM file\n");
ERR_print_errors(bio_err);
goto end;
}
} else {
if ((buf = BUF_MEM_new()) == NULL)
goto end;
if (!BUF_MEM_grow(buf, BUFSIZ * 8))
goto end; /* Pre-allocate :-) */
if (genstr || genconf) {
num = do_generate(bio_err, genstr, genconf, buf);
if (num < 0) {
ERR_print_errors(bio_err);
goto end;
}
}
else {
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;
}
/* If any structs to parse go through in sequence */
if (sk_OPENSSL_STRING_num(osk)) {
tmpbuf = (unsigned char *)str;
tmplen = num;
for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
ASN1_TYPE *atmp;
int typ;
j = atoi(sk_OPENSSL_STRING_value(osk, i));
if (j == 0) {
BIO_printf(bio_err, "'%s' is an invalid number\n",
sk_OPENSSL_STRING_value(osk, i));
continue;
}
tmpbuf += j;
tmplen -= j;
atmp = at;
ctmpbuf = tmpbuf;
at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
ASN1_TYPE_free(atmp);
if (!at) {
BIO_printf(bio_err, "Error parsing structure\n");
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;
}
str = (char *)tmpbuf;
num = tmplen;
}
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");
ERR_print_errors(bio_err);
goto end;
}
}
if (!noout &&
!ASN1_parse_dump(out, (unsigned char *)&(str[offset]), length,
indent, dump)) {
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
end:
BIO_free(derout);
BIO_free(in);
BIO_free_all(out);
BIO_free(b64);
if (ret != 0)
ERR_print_errors(bio_err);
if (buf != NULL)
BUF_MEM_free(buf);
if (name != NULL)
OPENSSL_free(name);
if (header != NULL)
OPENSSL_free(header);
if (strictpem && str != NULL)
OPENSSL_free(str);
if (at != NULL)
ASN1_TYPE_free(at);
if (osk != NULL)
sk_OPENSSL_STRING_free(osk);
OBJ_cleanup();
apps_shutdown();
OPENSSL_EXIT(ret);
}
int asn1parse_main(int argc, char **argv)
{
ASN1_TYPE *at = NULL;
BIO *in = NULL, *b64 = NULL, *derout = NULL;
BUF_MEM *buf = NULL;
STACK_OF(OPENSSL_STRING) *osk = NULL;
char *genstr = NULL, *genconf = 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;
int offset = 0, ret = 1, i, j;
long num, tmplen;
unsigned char *tmpbuf;
unsigned int length = 0;
OPTION_CHOICE o;
prog = opt_init(argc, argv, asn1parse_options);
if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
goto end;
}
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(asn1parse_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
derfile = opt_arg();
break;
case OPT_INDENT:
indent = 1;
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_OID:
oidfile = opt_arg();
break;
case OPT_OFFSET:
offset = strtol(opt_arg(), NULL, 0);
break;
case OPT_LENGTH:
length = atoi(opt_arg());
break;
case OPT_DUMP:
dump = -1;
break;
case OPT_DLIMIT:
dump = atoi(opt_arg());
break;
case OPT_STRPARSE:
sk_OPENSSL_STRING_push(osk, opt_arg());
break;
case OPT_GENSTR:
genstr = opt_arg();
break;
case OPT_GENCONF:
genconf = opt_arg();
break;
case OPT_STRICTPEM:
strictpem = 1;
informat = FORMAT_PEM;
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
if (oidfile != NULL) {
in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
if (in == NULL)
goto end;
OBJ_create_objects(in);
BIO_free(in);
}
if ((in = bio_open_default(infile, 'r', informat)) == NULL)
goto end;
if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL)
goto end;
if (strictpem) {
if (PEM_read_bio(in, &name, &header, &str, &num) !=
1) {
BIO_printf(bio_err, "Error reading PEM file\n");
ERR_print_errors(bio_err);
goto end;
}
} else {
if ((buf = BUF_MEM_new()) == NULL)
goto end;
if (!BUF_MEM_grow(buf, BUFSIZ * 8))
goto end; /* Pre-allocate :-) */
if (genstr || genconf) {
num = do_generate(genstr, genconf, buf);
if (num < 0) {
ERR_print_errors(bio_err);
goto end;
}
}
else {
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 = (unsigned char *)buf->data;
}
/* If any structs to parse go through in sequence */
if (sk_OPENSSL_STRING_num(osk)) {
tmpbuf = str;
tmplen = num;
for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
ASN1_TYPE *atmp;
int typ;
j = atoi(sk_OPENSSL_STRING_value(osk, i));
if (j == 0) {
BIO_printf(bio_err, "'%s' is an invalid number\n",
sk_OPENSSL_STRING_value(osk, i));
continue;
}
tmpbuf += j;
tmplen -= j;
atmp = at;
ctmpbuf = tmpbuf;
at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
ASN1_TYPE_free(atmp);
if (!at) {
BIO_printf(bio_err, "Error parsing structure\n");
ERR_print_errors(bio_err);
goto end;
}
typ = ASN1_TYPE_get(at);
if ((typ == V_ASN1_OBJECT)
|| (typ == V_ASN1_BOOLEAN)
|| (typ == V_ASN1_NULL)) {
BIO_printf(bio_err, "Can't parse %s type\n", ASN1_tag2str(typ));
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;
}
str = tmpbuf;
num = tmplen;
}
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");
ERR_print_errors(bio_err);
goto end;
}
}
if (!noout &&
!ASN1_parse_dump(bio_out, &(str[offset]), length,
indent, dump)) {
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
end:
BIO_free(derout);
BIO_free(in);
BIO_free(b64);
if (ret != 0)
ERR_print_errors(bio_err);
BUF_MEM_free(buf);
OPENSSL_free(name);
OPENSSL_free(header);
if (strictpem)
OPENSSL_free(str);
ASN1_TYPE_free(at);
sk_OPENSSL_STRING_free(osk);
return (ret);
}