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Check range on SEQ OF and OCTET STRING.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21395 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2007-07-02 10:19:08 +00:00
parent 1a41ee6302
commit c714e5d7ed
1 changed files with 30 additions and 0 deletions
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30
lib/asn1/gen_decode.c
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@@ -202,6 +202,32 @@ find_tag (const Type *t,
}
}
static void
range_check(const char *name,
const char *length,
const char *forwstr,
struct range *r)
{
if (r->min == r->max + 2 || r->min < r->max)
fprintf (codefile,
"if ((%s)->%s > %d) {\n"
"e = ASN1_MAX_CONSTRAINT; %s;\n"
"}\n",
name, length, r->max, forwstr);
if (r->min - 1 == r->max || r->min < r->max)
fprintf (codefile,
"if ((%s)->%s < %d) {\n"
"e = ASN1_MIN_CONSTRAINT; %s;\n"
"}\n",
name, length, r->min, forwstr);
if (r->max == r->min)
fprintf (codefile,
"if ((%s)->%s != %d) {\n"
"e = ASN1_EXACT_CONSTRAINT; %s;\n"
"}\n",
name, length, r->min, forwstr);
}
static int
decode_type (const char *name, const Type *t, int optional,
const char *forwstr, const char *tmpstr)
@@ -262,6 +288,8 @@ decode_type (const char *name, const Type *t, int optional,
break;
case TOctetString:
decode_primitive ("octet_string", name, forwstr);
if (t->range)
range_check(name, "length", forwstr, t->range);
break;
case TBitString: {
Member *m;
@@ -437,6 +465,8 @@ decode_type (const char *name, const Type *t, int optional,
"}\n",
name,
tmpstr, tmpstr);
if (t->range)
range_check(name, "len", forwstr, t->range);
free (n);
free (sname);
break;