static int mask_cb(const char *elem, int len, void *arg)
{
unsigned long *pmask = arg, tmpmask;
int tag;
if (len == 3 && !strncmp(elem, "DIR", 3))
{
*pmask |= B_ASN1_DIRECTORYSTRING;
return 1;
}
tag = asn1_str2tag(elem, len);
if (!tag || (tag & ASN1_GEN_FLAG))
return 0;
tmpmask = ASN1_tag2bit(tag);
if (!tmpmask)
return 0;
*pmask |= tmpmask;
return 1;
}
static int asn1_cb(const char *elem, int len, void *bitstr)
{
tag_exp_arg *arg = bitstr;
int i;
int utype;
int vlen = 0;
const char *p, *vstart = NULL;
int tmp_tag, tmp_class;
for(i = 0, p = elem; i < len; p++, i++)
{
/* Look for the ':' in name value pairs */
if (*p == ':')
{
vstart = p + 1;
vlen = len - (int)(vstart - elem);
len = (int)(p - elem);
break;
}
}
utype = asn1_str2tag(elem, len);
if (utype == -1)
{
ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_TAG);
ERR_add_error_data(2, "tag=", elem);
return -1;
}
/* If this is not a modifier mark end of string and exit */
if (!(utype & ASN1_GEN_FLAG))
{
arg->utype = utype;
arg->str = vstart;
/* If no value and not end of string, error */
if (!vstart && elem[len])
{
ASN1err(ASN1_F_ASN1_CB, ASN1_R_MISSING_VALUE);
return -1;
}
return 0;
}
switch(utype)
{
case ASN1_GEN_FLAG_IMP:
/* Check for illegal multiple IMPLICIT tagging */
if (arg->imp_tag != -1)
{
ASN1err(ASN1_F_ASN1_CB, ASN1_R_ILLEGAL_NESTED_TAGGING);
return -1;
}
if (!parse_tagging(vstart, vlen, &arg->imp_tag, &arg->imp_class))
return -1;
break;
case ASN1_GEN_FLAG_EXP:
if (!parse_tagging(vstart, vlen, &tmp_tag, &tmp_class))
return -1;
if (!append_exp(arg, tmp_tag, tmp_class, 1, 0, 0))
return -1;
break;
case ASN1_GEN_FLAG_SEQWRAP:
if (!append_exp(arg, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, 1, 0, 1))
return -1;
break;
case ASN1_GEN_FLAG_SETWRAP:
if (!append_exp(arg, V_ASN1_SET, V_ASN1_UNIVERSAL, 1, 0, 1))
return -1;
break;
case ASN1_GEN_FLAG_BITWRAP:
if (!append_exp(arg, V_ASN1_BIT_STRING, V_ASN1_UNIVERSAL, 0, 1, 1))
return -1;
break;
case ASN1_GEN_FLAG_OCTWRAP:
if (!append_exp(arg, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL, 0, 0, 1))
return -1;
break;
case ASN1_GEN_FLAG_FORMAT:
if (!strncmp(vstart, "ASCII", 5))
arg->format = ASN1_GEN_FORMAT_ASCII;
else if (!strncmp(vstart, "UTF8", 4))
arg->format = ASN1_GEN_FORMAT_UTF8;
else if (!strncmp(vstart, "HEX", 3))
arg->format = ASN1_GEN_FORMAT_HEX;
else if (!strncmp(vstart, "BITLIST", 3))
arg->format = ASN1_GEN_FORMAT_BITLIST;
else
{
ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKOWN_FORMAT);
return -1;
}
break;
}
return 1;
}
