/*
* Copyright © 2006-2007 Pierre Habouzit
+ * Copyright © 2008 Florent Bruneau
*/
#include <getopt.h>
#include "buffer.h"
#include "common.h"
-#include "threads.h"
+#include "epoll.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;
+
+ const char *eoq;
} query_t;
+static query_t *query_new(void)
+{
+ return p_new(query_t, 1);
+}
+
+static void query_delete(query_t **query)
+{
+ if (*query) {
+ p_delete(query);
+ }
+}
+
+static void *query_starter(server_t* server)
+{
+ return query_new();
+}
+
static int postfix_parsejob(query_t *query, char *p)
{
#define PARSE_CHECK(expr, error, ...) \
#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;
+ 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);
+}
- if (postfix_parsejob(&q, buf.data) < 0)
- break;
+static void policy_process(server_t *pcy)
+{
+ policy_answer(pcy, "DUNNO");
+}
- buffer_consume(&buf, eoq + strlen("\n\n") - buf.data);
- if (xwrite(fd, "DUNNO\n\n", strlen("DUNNO\n\n"))) {
- UNIXERR("write");
- break;
- }
+static int policy_run(server_t *pcy, void* config)
+{
+ 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;
+ }
+ if (nb == 0) {
+ if (pcy->ibuf.len)
+ syslog(LOG_ERR, "unexpected end of data");
+ return -1;
}
- buffer_wipe(&buf);
- close(fd);
- return NULL;
+ 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)
{
- struct sigaction sa;
-
openlog("postlicyd", LOG_PID, LOG_MAIL);
signal(SIGPIPE, SIG_IGN);
- sigaction(SIGINT, NULL, &sa);
- sa.sa_handler = &common_sighandler;
- sa.sa_flags &= ~SA_RESTART;
- sigaction(SIGINT, &sa, NULL);
+ signal(SIGINT, &common_sighandler);
signal(SIGTERM, &common_sighandler);
signal(SIGHUP, &common_sighandler);
signal(SIGSEGV, &common_sighandler);
int main(int argc, char *argv[])
{
- struct sockaddr_in addr = {
- .sin_family = AF_INET,
- .sin_addr = { htonl(INADDR_LOOPBACK) },
- };
const char *pidfile = NULL;
bool daemonize = true;
int port = DEFAULT_PORT;
- int sock = -1;
for (int c = 0; (c = getopt(argc, argv, "hf" "l:p:")) >= 0; ) {
switch (c) {
pidfile_refresh();
- addr.sin_port = htons(port);
- sock = tcp_listen((struct sockaddr *)&addr, sizeof(addr));
- if (sock < 0)
+ if (start_listener(port) < 0)
return EXIT_FAILURE;
- while (!sigint) {
- int fd = accept(sock, NULL, 0);
- if (fd < 0) {
- if (errno != EINTR && errno != EAGAIN)
- UNIXERR("accept");
- continue;
- }
- thread_launch(policy_run, fd, NULL);
- threads_join();
- }
+ (void)server_loop(query_starter, (delete_client_t)query_delete,
+ policy_run, NULL);
- close(sock);
syslog(LOG_INFO, "Stopping...");
return EXIT_SUCCESS;
}