Lines Matching refs:tcpmsg
18 /* $Id: tcpmsg.c,v 1.31 2007/06/19 23:47:16 tbox Exp $ */
30 #include <dns/tcpmsg.h>
50 dns_tcpmsg_t *tcpmsg = ev_in->ev_arg;
54 INSIST(VALID_TCPMSG(tcpmsg));
56 dev = &tcpmsg->event;
57 tcpmsg->address = ev->address;
60 tcpmsg->result = ev->result;
67 tcpmsg->size = ntohs(tcpmsg->size);
68 if (tcpmsg->size == 0) {
69 tcpmsg->result = ISC_R_UNEXPECTEDEND;
72 if (tcpmsg->size > tcpmsg->maxsize) {
73 tcpmsg->result = ISC_R_RANGE;
77 region.base = isc_mem_get(tcpmsg->mctx, tcpmsg->size);
78 region.length = tcpmsg->size;
80 tcpmsg->result = ISC_R_NOMEMORY;
83 XDEBUG(("Allocated %d bytes\n", tcpmsg->size));
85 isc_buffer_init(&tcpmsg->buffer, region.base, region.length);
86 result = isc_socket_recv(tcpmsg->sock, ®ion, 0,
87 task, recv_message, tcpmsg);
89 tcpmsg->result = result;
97 isc_task_send(tcpmsg->task, &dev);
98 tcpmsg->task = NULL;
107 dns_tcpmsg_t *tcpmsg = ev_in->ev_arg;
111 INSIST(VALID_TCPMSG(tcpmsg));
113 dev = &tcpmsg->event;
114 tcpmsg->address = ev->address;
117 tcpmsg->result = ev->result;
121 tcpmsg->result = ISC_R_SUCCESS;
122 isc_buffer_add(&tcpmsg->buffer, ev->n);
124 XDEBUG(("Received %d bytes (of %d)\n", ev->n, tcpmsg->size));
127 isc_task_send(tcpmsg->task, &dev);
128 tcpmsg->task = NULL;
133 dns_tcpmsg_init(isc_mem_t *mctx, isc_socket_t *sock, dns_tcpmsg_t *tcpmsg) {
136 REQUIRE(tcpmsg != NULL);
138 tcpmsg->magic = TCPMSG_MAGIC;
139 tcpmsg->size = 0;
140 tcpmsg->buffer.base = NULL;
141 tcpmsg->buffer.length = 0;
142 tcpmsg->maxsize = 65535; /* Largest message possible. */
143 tcpmsg->mctx = mctx;
144 tcpmsg->sock = sock;
145 tcpmsg->task = NULL; /* None yet. */
146 tcpmsg->result = ISC_R_UNEXPECTED; /* None yet. */
154 dns_tcpmsg_setmaxsize(dns_tcpmsg_t *tcpmsg, unsigned int maxsize) {
155 REQUIRE(VALID_TCPMSG(tcpmsg));
158 tcpmsg->maxsize = maxsize;
163 dns_tcpmsg_readmessage(dns_tcpmsg_t *tcpmsg,
169 REQUIRE(VALID_TCPMSG(tcpmsg));
171 REQUIRE(tcpmsg->task == NULL); /* not currently in use */
173 if (tcpmsg->buffer.base != NULL) {
174 isc_mem_put(tcpmsg->mctx, tcpmsg->buffer.base,
175 tcpmsg->buffer.length);
176 tcpmsg->buffer.base = NULL;
177 tcpmsg->buffer.length = 0;
180 tcpmsg->task = task;
181 tcpmsg->action = action;
182 tcpmsg->arg = arg;
183 tcpmsg->result = ISC_R_UNEXPECTED; /* unknown right now */
185 ISC_EVENT_INIT(&tcpmsg->event, sizeof(isc_event_t), 0, 0,
186 DNS_EVENT_TCPMSG, action, arg, tcpmsg,
189 region.base = (unsigned char *)&tcpmsg->size;
191 result = isc_socket_recv(tcpmsg->sock, ®ion, 0,
192 tcpmsg->task, recv_length, tcpmsg);
195 tcpmsg->task = NULL;
201 dns_tcpmsg_cancelread(dns_tcpmsg_t *tcpmsg) {
202 REQUIRE(VALID_TCPMSG(tcpmsg));
204 isc_socket_cancel(tcpmsg->sock, NULL, ISC_SOCKCANCEL_RECV);
208 dns_tcpmsg_keepbuffer(dns_tcpmsg_t *tcpmsg, isc_buffer_t *buffer) {
209 REQUIRE(VALID_TCPMSG(tcpmsg));
212 *buffer = tcpmsg->buffer;
213 tcpmsg->buffer.base = NULL;
214 tcpmsg->buffer.length = 0;
219 dns_tcpmsg_freebuffer(dns_tcpmsg_t *tcpmsg) {
220 REQUIRE(VALID_TCPMSG(tcpmsg));
222 if (tcpmsg->buffer.base == NULL)
225 isc_mem_put(tcpmsg->mctx, tcpmsg->buffer.base, tcpmsg->buffer.length);
226 tcpmsg->buffer.base = NULL;
227 tcpmsg->buffer.length = 0;
232 dns_tcpmsg_invalidate(dns_tcpmsg_t *tcpmsg) {
233 REQUIRE(VALID_TCPMSG(tcpmsg));
235 tcpmsg->magic = 0;
237 if (tcpmsg->buffer.base != NULL) {
238 isc_mem_put(tcpmsg->mctx, tcpmsg->buffer.base,
239 tcpmsg->buffer.length);
240 tcpmsg->buffer.base = NULL;
241 tcpmsg->buffer.length = 0;