#include "buffer.h"
#include "common.h"
#include "epoll.h"
-#include "threads.h"
#include "tokens.h"
+#include "server.h"
#define DAEMON_NAME "postlicyd"
#define DEFAULT_PORT 10000
const char *encryption_cipher;
const char *encryption_keysize;
const char *etrn_domain;
-} query_t;
-
-typedef struct plicyd_t {
- unsigned listener : 1;
- unsigned watchwr : 1;
- int fd;
- buffer_t ibuf;
- buffer_t obuf;
-} plicyd_t;
+ const char *eoq;
+} query_t;
-static plicyd_t *plicyd_new(void)
+static void* query_new()
{
- plicyd_t *plicyd = p_new(plicyd_t, 1);
- plicyd->fd = -1;
- return plicyd;
+ return p_new(query_t, 1);
}
-#if 0
-static void plicyd_delete(plicyd_t **plicyd)
+static void query_delete(void *arg)
{
- if (*plicyd) {
- if ((*plicyd)->fd >= 0)
- close((*plicyd)->fd);
- buffer_wipe(&(*plicyd)->ibuf);
- buffer_wipe(&(*plicyd)->obuf);
- p_delete(plicyd);
+ query_t **query = arg;
+ if (*query) {
+ p_delete(query);
}
}
-#endif
static int postfix_parsejob(query_t *query, char *p)
{
#undef PARSE_CHECK
}
-static void *policy_run(int fd, void *data)
+__attribute__((format(printf,2,0)))
+static void policy_answer(server_t *pcy, const char *fmt, ...)
{
- buffer_t buf;
-
- buffer_init(&buf);
- for (;;) {
- ssize_t search_offs = MAX(0, buf.len - 1);
- int nb = buffer_read(&buf, fd, -1);
- const char *eoq;
- query_t q;
-
- if (nb < 0) {
- if (errno == EAGAIN || errno == EINTR)
- continue;
- UNIXERR("read");
- break;
- }
- if (nb == 0) {
- if (buf.len)
- syslog(LOG_ERR, "unexpected end of data");
- break;
- }
-
- eoq = strstr(buf.data + search_offs, "\n\n");
- if (!eoq)
- continue;
-
- if (postfix_parsejob(&q, buf.data) < 0)
- break;
-
- buffer_consume(&buf, eoq + strlen("\n\n") - buf.data);
- if (xwrite(fd, "DUNNO\n\n", strlen("DUNNO\n\n"))) {
- UNIXERR("write");
- break;
- }
- }
- buffer_wipe(&buf);
+ va_list args;
+ va_start(args, fmt);
+ buffer_addvf(&pcy->obuf, fmt, args);
+ va_end(args);
+ buffer_addstr(&pcy->obuf, "\n\n");
+ buffer_consume(&pcy->ibuf, ((query_t*)(pcy->data))->eoq - pcy->ibuf.data);
+ epoll_modify(pcy->fd, EPOLLIN | EPOLLOUT, pcy);
+}
- close(fd);
- return NULL;
+static void policy_process(server_t *pcy)
+{
+ policy_answer(pcy, "DUNNO");
}
-int start_listener(int port)
+static int policy_run(server_t *pcy, void* config)
{
- struct sockaddr_in addr = {
- .sin_family = AF_INET,
- .sin_addr = { htonl(INADDR_LOOPBACK) },
- };
- struct epoll_event evt = { .events = EPOLLIN };
- plicyd_t *tmp;
- int sock;
-
- addr.sin_port = htons(port);
- sock = tcp_listen_nonblock((const struct sockaddr *)&addr, sizeof(addr));
- if (sock < 0) {
+ ssize_t search_offs = MAX(0, pcy->ibuf.len - 1);
+ int nb = buffer_read(&pcy->ibuf, pcy->fd, -1);
+ const char *eoq;
+
+ if (nb < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ return 0;
+ UNIXERR("read");
return -1;
}
-
- evt.data.ptr = tmp = plicyd_new();
- tmp->fd = sock;
- tmp->listener = true;
- if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock, &evt) < 0) {
- UNIXERR("epoll_ctl");
+ if (nb == 0) {
+ if (pcy->ibuf.len)
+ syslog(LOG_ERR, "unexpected end of data");
return -1;
}
+
+ if (!(eoq = strstr(pcy->ibuf.data + search_offs, "\n\n")))
+ return 0;
+
+ if (postfix_parsejob(pcy->data, pcy->ibuf.data) < 0)
+ return -1;
+ ((query_t*)pcy->data)->eoq = eoq + strlen("\n\n");
+ epoll_modify(pcy->fd, 0, pcy);
+ policy_process(pcy);
return 0;
}
+
+int start_listener(int port)
+{
+ return start_server(port, NULL, NULL);
+}
+
/* administrivia {{{ */
static int main_initialize(void)
if (start_listener(port) < 0)
return EXIT_FAILURE;
- while (!sigint) {
- struct epoll_event evts[1024];
- int n;
-
- n = epoll_wait(epollfd, evts, countof(evts), -1);
- if (n < 0) {
- if (errno != EAGAIN && errno != EINTR) {
- UNIXERR("epoll_wait");
- return EXIT_FAILURE;
- }
- continue;
- }
-
- while (--n >= 0) {
- plicyd_t *d = evts[n].data.ptr;
-
- if (d->listener) {
- int fd = accept(d->fd, NULL, 0);
- if (fd < 0) {
- if (errno != EINTR && errno != EAGAIN) {
- UNIXERR("accept");
- return EXIT_FAILURE;
- }
- continue;
- }
- thread_launch(policy_run, fd, NULL);
- }
- }
- threads_join();
- }
+ (void)server_loop(query_new, query_delete, policy_run, NULL);
syslog(LOG_INFO, "Stopping...");
return EXIT_SUCCESS;