/*% Uses context ctx to convert the contents of packet pkt to a lwres_gnbarequest_t structure. */
lwres_result_t
lwres_gnbarequest_parse (lwres_context_t * ctx, lwres_buffer_t * b,
lwres_lwpacket_t * pkt, lwres_gnbarequest_t ** structp)
{
int ret;
lwres_gnbarequest_t *gnba;
REQUIRE (ctx != NULL);
REQUIRE (pkt != NULL);
REQUIRE (b != NULL);
REQUIRE (structp != NULL && *structp == NULL);
if ((pkt->pktflags & LWRES_LWPACKETFLAG_RESPONSE) != 0)
return (LWRES_R_FAILURE);
if (!SPACE_REMAINING (b, 4))
return (LWRES_R_UNEXPECTEDEND);
gnba = CTXMALLOC (sizeof (lwres_gnbarequest_t));
if (gnba == NULL)
return (LWRES_R_NOMEMORY);
gnba->flags = lwres_buffer_getuint32 (b);
ret = lwres_addr_parse (b, &gnba->addr);
if (ret != LWRES_R_SUCCESS)
goto out;
if (LWRES_BUFFER_REMAINING (b) != 0)
{
ret = LWRES_R_TRAILINGDATA;
goto out;
}
*structp = gnba;
return (LWRES_R_SUCCESS);
out:
if (gnba != NULL)
lwres_gnbarequest_free (ctx, &gnba);
return (ret);
}
lwres_result_t
lwres_gabnresponse_parse(lwres_context_t *ctx, lwres_buffer_t *b,
lwres_lwpacket_t *pkt, lwres_gabnresponse_t **structp)
{
lwres_result_t ret;
unsigned int x;
lwres_uint32_t flags;
lwres_uint16_t naliases;
lwres_uint16_t naddrs;
lwres_gabnresponse_t *gabn;
lwres_addrlist_t addrlist;
lwres_addr_t *addr;
REQUIRE(ctx != NULL);
REQUIRE(pkt != NULL);
REQUIRE(b != NULL);
REQUIRE(structp != NULL && *structp == NULL);
gabn = NULL;
if ((pkt->pktflags & LWRES_LWPACKETFLAG_RESPONSE) == 0)
return (LWRES_R_FAILURE);
/*
* Pull off the name itself
*/
if (!SPACE_REMAINING(b, 4 + 2 + 2))
return (LWRES_R_UNEXPECTEDEND);
flags = lwres_buffer_getuint32(b);
naliases = lwres_buffer_getuint16(b);
naddrs = lwres_buffer_getuint16(b);
gabn = CTXMALLOC(sizeof(lwres_gabnresponse_t));
if (gabn == NULL)
return (LWRES_R_NOMEMORY);
gabn->aliases = NULL;
gabn->aliaslen = NULL;
LWRES_LIST_INIT(gabn->addrs);
gabn->base = NULL;
gabn->flags = flags;
gabn->naliases = naliases;
gabn->naddrs = naddrs;
LWRES_LIST_INIT(addrlist);
if (naliases > 0) {
gabn->aliases = CTXMALLOC(sizeof(char *) * naliases);
if (gabn->aliases == NULL) {
ret = LWRES_R_NOMEMORY;
goto out;
}
gabn->aliaslen = CTXMALLOC(sizeof(lwres_uint16_t) * naliases);
if (gabn->aliaslen == NULL) {
ret = LWRES_R_NOMEMORY;
goto out;
}
}
for (x = 0; x < naddrs; x++) {
addr = CTXMALLOC(sizeof(lwres_addr_t));
if (addr == NULL) {
ret = LWRES_R_NOMEMORY;
goto out;
}
LWRES_LINK_INIT(addr, link);
LWRES_LIST_APPEND(addrlist, addr, link);
}
/*
* Now, pull off the real name.
*/
ret = lwres_string_parse(b, &gabn->realname, &gabn->realnamelen);
if (ret != LWRES_R_SUCCESS)
goto out;
/*
* Parse off the aliases.
*/
for (x = 0; x < gabn->naliases; x++) {
ret = lwres_string_parse(b, &gabn->aliases[x],
&gabn->aliaslen[x]);
if (ret != LWRES_R_SUCCESS)
goto out;
}
/*
* Pull off the addresses. We already strung the linked list
* up above.
*/
addr = LWRES_LIST_HEAD(addrlist);
for (x = 0; x < gabn->naddrs; x++) {
INSIST(addr != NULL);
ret = lwres_addr_parse(b, addr);
if (ret != LWRES_R_SUCCESS)
goto out;
addr = LWRES_LIST_NEXT(addr, link);
}
if (LWRES_BUFFER_REMAINING(b) != 0) {
ret = LWRES_R_TRAILINGDATA;
goto out;
}
gabn->addrs = addrlist;
*structp = gabn;
return (LWRES_R_SUCCESS);
out:
if (gabn != NULL) {
if (gabn->aliases != NULL)
CTXFREE(gabn->aliases, sizeof(char *) * naliases);
if (gabn->aliaslen != NULL)
CTXFREE(gabn->aliaslen,
sizeof(lwres_uint16_t) * naliases);
addr = LWRES_LIST_HEAD(addrlist);
while (addr != NULL) {
LWRES_LIST_UNLINK(addrlist, addr, link);
CTXFREE(addr, sizeof(lwres_addr_t));
addr = LWRES_LIST_HEAD(addrlist);
}
CTXFREE(gabn, sizeof(lwres_gabnresponse_t));
}
return (ret);
}
