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Add 64-bit integer support to ASN.1 compiler

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ASN.1 INTEGERs will now compile to C int64_t or uint64_t, depending
    on whether the constraint ranges include numbers that cannot be
    represented in 32-bit ints and whether they include negative
    numbers.

    Template backend support included.  check-template is now built with
    --template, so we know we're testing it.

    Tests included.
This commit is contained in:
Nicolas Williams
2011-06-22 17:11:40 -05:00
committed by Nicolas Williams
parent 0e7437ba2e
commit 19d378f44d
20 changed files with 426 additions and 48 deletions
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45
lib/asn1/der_get.c
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@@ -48,9 +48,28 @@ der_get_unsigned (const unsigned char *p, size_t len,
unsigned val = 0;
size_t oldlen = len;
if (len == sizeof(unsigned) + 1 && p[0] == 0)
if (len == sizeof(val) + 1 && p[0] == 0)
;
else if (len > sizeof(unsigned))
else if (len > sizeof(val))
return ASN1_OVERRUN;
while (len--)
val = val * 256 + *p++;
*ret = val;
if(size) *size = oldlen;
return 0;
}
int
der_get_unsigned64 (const unsigned char *p, size_t len,
uint64_t *ret, size_t *size)
{
uint64_t val = 0;
size_t oldlen = len;
if (len == sizeof(val) + 1 && p[0] == 0)
;
else if (len > sizeof(val))
return ASN1_OVERRUN;
while (len--)
@@ -67,7 +86,27 @@ der_get_integer (const unsigned char *p, size_t len,
int val = 0;
size_t oldlen = len;
if (len > sizeof(int))
if (len > sizeof(val))
return ASN1_OVERRUN;
if (len > 0) {
val = (signed char)*p++;
while (--len)
val = val * 256 + *p++;
}
*ret = val;
if(size) *size = oldlen;
return 0;
}
int
der_get_integer64 (const unsigned char *p, size_t len,
int64_t *ret, size_t *size)
{
int64_t val = 0;
size_t oldlen = len;
if (len > sizeof(val))
return ASN1_OVERRUN;
if (len > 0) {