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Code Issues Releases Wiki Activity

implement and use isc_buffer_putuint{16,32}()

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This commit is contained in:
Michael Graff
1999-01-27 06:18:45 +00:00
parent f0a5bb8f86
commit 22f735acbc
3 changed files with 67 additions and 20 deletions
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25
lib/dns/rdataset.c
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@@ -263,9 +263,6 @@ dns_rdataset_towire(dns_rdataset_t *rdataset,
{
dns_rdata_t rdata;
isc_region_t r;
dns_rdataclass_t rclass;
dns_rdatatype_t rtype;
dns_ttl_t rttl;
dns_result_t result;
/*
@@ -290,27 +287,15 @@ dns_rdataset_towire(dns_rdataset_t *rdataset,
+ sizeof(dns_ttl_t)
+ 2)) /* XXX 2? it's for the rdata length */
return (DNS_R_NOSPACE);
rtype = rdataset->type;
r.base[0] = (rtype & 0xff00) >> 8;
r.base[1] = (rtype & 0xff);
rclass = rdataset->class;
r.base[2] = (rclass & 0xff00) >> 8;
r.base[3] = (rclass & 0x00ff);
rttl = rdataset->ttl;
r.base[4] = (rttl & 0xff000000) >> 24;
r.base[5] = (rttl & 0x00ff0000) >> 16;
r.base[6] = (rttl & 0x0000ff00) >> 8;
r.base[7] = (rttl & 0x000000ff);
isc_buffer_add(target, (sizeof(dns_rdataclass_t)
+ sizeof(dns_rdatatype_t)
+ sizeof(dns_ttl_t)
+ 2)); /* XXX see XXX above */
isc_buffer_putuint16(target, rdataset->type);
isc_buffer_putuint16(target, rdataset->class);
isc_buffer_putuint32(target, rdataset->ttl);
/*
* copy out the rdata length
*/
dns_rdataset_current(rdataset, &rdata);
r.base[8] = (rdata.length & 0xff00) >> 8;
r.base[9] = (rdata.length & 0x00ff);
isc_buffer_putuint16(target, rdata.length);
/*
* copy out the rdata

32
lib/isc/buffer.c
View File

@@ -294,6 +294,21 @@ isc_buffer_getuint16(isc_buffer_t *b) {
return (result);
}
void
isc_buffer_putuint16(isc_buffer_t *b, isc_uint16_t val)
{
unsigned char *cp;
REQUIRE(VALID_BUFFER(b));
REQUIRE(b->used + 2 <= b->length);
cp = b->base;
cp += b->used;
b->used += 2;
cp[0] = (val & 0xff00) >> 8;
cp[1] = (val & 0x00ff);
}
isc_uint32_t
isc_buffer_getuint32(isc_buffer_t *b) {
unsigned char *cp;
@@ -317,3 +332,20 @@ isc_buffer_getuint32(isc_buffer_t *b) {
return (result);
}
void
isc_buffer_putuint32(isc_buffer_t *b, isc_uint32_t val)
{
unsigned char *cp;
REQUIRE(VALID_BUFFER(b));
REQUIRE(b->used + 4 <= b->length);
cp = b->base;
cp += b->used;
b->used += 4;
cp[0] = (val & 0xff000000) >> 24;
cp[1] = (val & 0x00ff0000) >> 16;
cp[2] = (val & 0x0000ff00) >> 8;
cp[3] = (val & 0x000000ff);
}

30
lib/isc/include/isc/buffer.h
View File

@@ -366,6 +366,21 @@ isc_buffer_getuint16(isc_buffer_t *b);
* A 16-bit unsigned integer.
*/
void
isc_buffer_putuint16(isc_buffer_t *b, isc_uint16_t val);
/*
* Store an unsigned 16-bit integer in host byte order from 'val'
* into 'b' in network byte order.
*
* Requires:
* 'b' is a valid buffer.
*
* The length of the unused region of 'b' is at least 2.
*
* Ensures:
* The used pointer in 'b' is advanced by 2.
*/
isc_uint32_t
isc_buffer_getuint32(isc_buffer_t *b);
/*
@@ -387,4 +402,19 @@ isc_buffer_getuint32(isc_buffer_t *b);
* A 32-bit unsigned integer.
*/
void
isc_buffer_putuint32(isc_buffer_t *b, isc_uint32_t val);
/*
* Store an unsigned 32-bit integer in host byte order from 'val'
* into 'b' in network byte order.
*
* Requires:
* 'b' is a valid buffer.
*
* The length of the unused region of 'b' is at least 4.
*
* Ensures:
* The used pointer in 'b' is advanced by 4.
*/
#endif /* ISC_BUFFER_H */