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#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <assert.h>
#include <errno.h>
#include <poll.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <rpcsvc/yp_prot.h>
#include <nspr.h>
#include <secport.h>
#include <plarenas.h>
#include <dirsrv/slapi-plugin.h>
#include "dispatch.h"
#include "nis.h"
#include "plugin.h"
#include "portmap.h"
#include "schema.h"
#include "stream.h"
/* Handle a datagram client -- read the request and handle it immediately. */
static void
dispatch_dgram(struct plugin_state *state, int fd)
{
struct sockaddr_storage client_addr;
socklen_t client_addrlen;
char dgram[65536];
int reqsize;
/* Read the request. */
client_addrlen = sizeof(client_addr);
reqsize = recvfrom(fd, dgram, sizeof(dgram), 0,
(struct sockaddr *) &client_addr, &client_addrlen);
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"datagram request\n");
/* Handle the request. */
nis_process_request(state, fd,
(struct sockaddr *) &client_addr, client_addrlen,
dgram, reqsize);
}
/* Handle a stream client -- answer the connection and spawn a thread to handle
* its requests. */
static void
dispatch_stream(struct plugin_state *state, int fd)
{
struct sockaddr_storage client_addr;
socklen_t client_addrlen;
int client;
client = accept(fd, (struct sockaddr *) &client_addr, &client_addrlen);
if (client != -1) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"new stream request\n");
stream_client_start(state, client);
}
}
void *
dispatch_thread(void *p)
{
struct plugin_state *state = p;
struct pollfd fds[4];
int i;
for (;;) {
/* Set up for polling. */
memset(&fds, 0, sizeof(fds));
for (i = 0; i < state->n_listeners; i++) {
fds[i].fd = state->listener[i].fd;
fds[i].events = POLLIN;
}
switch (poll(fds, state->n_listeners, -1)) {
case -1:
return NULL;
break;
case 0:
continue;
default:
/* Iterate over listening sockets which have work for
* us to do. */
for (i = 0; i < state->n_listeners; i++) {
if ((fds[i].revents & POLLIN) == 0) {
continue;
}
switch (state->listener[i].type) {
case SOCK_DGRAM:
dispatch_dgram(state, fds[i].fd);
break;
case SOCK_STREAM:
dispatch_stream(state, fds[i].fd);
break;
default:
/* never reached */
assert(0);
break;
}
}
}
}
return state;
}
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