/*
* Returns: number of bytes written or -1 for error (out of bounds).
*/
int ber_encinteger(ODR o, Odr_int val)
{
int a, len;
union { int i; unsigned char c[sizeof(int)]; } tmp;
tmp.i = htonl(val); /* ensure that that we're big-endian */
for (a = 0; a < (int) sizeof(int) - 1; a++) /* skip superfluous octets */
if (!((tmp.c[a] == 0 && !(tmp.c[a+1] & 0X80)) ||
(tmp.c[a] == 0XFF && (tmp.c[a+1] & 0X80))))
break;
len = sizeof(int) - a;
if (ber_enclen(o, len, 1, 1) != 1)
return -1;
if (odr_write(o, (unsigned char*) tmp.c + a, len) < 0)
return -1;
return 0;
}
int ber_bitstring(ODR o, Odr_bitmask *p, int cons)
{
int res, len;
const char *base;
switch (o->direction)
{
case ODR_DECODE:
if ((res = ber_declen(o->op->bp, &len, odr_max(o))) < 0)
{
odr_seterror(o, OPROTO, 4);
return 0;
}
o->op->bp += res;
if (cons) /* fetch component strings */
{
base = o->op->bp;
while (odp_more_chunks(o, base, len))
if (!odr_bitstring(o, &p, 0, 0))
return 0;
return 1;
}
/* primitive bitstring */
if (len < 0)
{
odr_seterror(o, OOTHER, 5);
return 0;
}
if (len == 0)
return 1;
if (len - 1 > ODR_BITMASK_SIZE)
{
odr_seterror(o, OOTHER, 6);
return 0;
}
if (len > odr_max(o))
{
odr_seterror(o, OOTHER, 7);
return 0;
}
o->op->bp++; /* silently ignore the unused-bits field */
len--;
memcpy(p->bits + p->top + 1, o->op->bp, len);
p->top += len;
o->op->bp += len;
return 1;
case ODR_ENCODE:
if ((res = ber_enclen(o, p->top + 2, 5, 0)) < 0)
return 0;
if (odr_putc(o, 0) < 0) /* no unused bits here */
return 0;
if (p->top < 0)
return 1;
if (odr_write(o, p->bits, p->top + 1) < 0)
return 0;
return 1;
case ODR_PRINT:
return 1;
default:
odr_seterror(o, OOTHER, 8);
return 0;
}
}
