* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
- *
- * Copyright © 2006 Pierre Habouzit
+ */
+/*
+ * Copyright © 2007 Pierre Habouzit
*/
+#include <netdb.h>
+#include <pthread.h>
#include <sys/epoll.h>
#include <sys/socket.h>
#ifndef EPOLLRDHUP
#include "evtloop.h"
#include "mutt.h"
#include "mutt_ssl.li"
+#ifdef HAVE_LIBIDN
+#include <idna.h>
+#endif
+
+DO_ARRAY_TYPE(job_t, job);
static int epollfd = -1;
+static job_array jobs;
+static pthread_mutex_t el_mx;
+static pthread_cond_t el_cond;
+static pthread_t el_thread;
static int el_job_setemode(job_t *w, el_mode emode)
{
gnutls_deinit(w->session);
}
+static void job_arrau_dtor(job_t **j)
+{
+ if (*j)
+ IGNORE(el_job_release(*j, EL_KILLED));
+}
+
+DO_ARRAY_FUNCS(job_t, job, job_arrau_dtor);
+
+static void job_array_remove(job_array *arr, job_t *j)
+{
+ for (int i = 0; i < arr->len; i++) {
+ if (arr->arr[i] == j) {
+ job_array_take(arr, i);
+ break;
+ }
+ }
+}
+
+job_t *el_job_start(const machine_t *m, void *cfg)
+{
+ job_t *w = job_new();
+ w->m = m;
+ job_array_append(&jobs, w);
+ return m->setup(w, cfg) < 0 ? NULL : w;
+}
+
int el_job_release(job_t *w, el_status reason)
{
+ if (w->cond) {
+ pthread_cond_signal(&el_cond);
+ w->cond = false;
+ }
w->state = EL_LLP_FINI;
if (w->m && w->m->finalize) {
w->m->finalize(w, reason);
gnutls_bye(w->session, GNUTLS_SHUT_RDWR);
close(w->fd);
}
+ job_array_remove(&jobs, w);
job_delete(&w);
return -1;
}
-static int el_job_connecting_ssl(job_t *w)
+static int el_job_tlsing(job_t *w, int starttls)
{
int err = gnutls_handshake(w->session);
-
if (err < 0 && !gnutls_error_is_fatal(err)) {
int wr = gnutls_record_get_direction(w->session);
return el_job_setemode(w, wr ? EL_WRITING : EL_READING);
/* NB: gnutls_cipher_get_key_size() returns key length in bytes */
w->ssf = gnutls_cipher_get_key_size(gnutls_cipher_get(w->session)) * 8;
w->state = EL_LLP_READY;
+ if (starttls)
+ return el_job_setemode(w, w->mode);
return w->m->on_event(w, EL_EVT_RUNNING);
}
+static int el_job_starttlsing(job_t *w)
+{
+ return el_job_tlsing(w, true);
+}
+
+static int el_job_connecting_ssl(job_t *w)
+{
+ return el_job_tlsing(w, false);
+}
+
static int el_job_connecting(job_t *w)
{
int err = 0;
return w->m->on_event(w, EL_EVT_RUNNING);
}
-static int tls_negociate(job_t *w)
+static int tls_negotiate(job_t *w)
{
static int protocol_priority[] = { GNUTLS_TLS1, GNUTLS_SSL3, 0 };
goto error;
if (fcntl(sock, F_SETFL, res | O_NONBLOCK) < 0)
goto error;
+ if (fcntl(sock, F_SETFD, FD_CLOEXEC) < 0)
+ goto error;
if (connect(sock, addr, len) < 0)
goto error;
w->fd = sock;
- if (ssl && tls_negociate(w) < 0)
+ if (ssl && tls_negotiate(w) < 0)
goto error;
w->llp = &el_job_connecting;
return el_job_release(w, EL_ERROR);
}
+int el_job_connect2(job_t *w, const ACCOUNT *act)
+{
+ int rc;
+ char *host = NULL;
+ struct addrinfo *res;
+ struct addrinfo hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ };
+
+# ifdef HAVE_LIBIDN
+ if (idna_to_ascii_lz(act->host, &host, 1) != IDNA_SUCCESS) {
+ mutt_error(_("Bad IDN \"%s\"."), act->host);
+ return -1;
+ }
+# else
+ host = act->host;
+# endif
+ mutt_message(_("Looking up %s..."), act->host);
+ rc = getaddrinfo(host, NULL, &hints, &res);
+# ifdef HAVE_LIBIDN
+ p_delete(&host);
+# endif
+
+ if (rc) {
+ mutt_error(_("Could not find the host \"%s\""), act->host);
+ mutt_sleep(2);
+ return -1;
+ }
+ mutt_message(_("Connecting to %s..."), act->host);
+ rc = el_job_connect(w, res->ai_addr, res->ai_addrlen, res->ai_socktype,
+ res->ai_protocol, act->has_ssl);
+ freeaddrinfo (res);
+ if (rc) {
+ mutt_error(_("Could not connect to %s (%m)."), act->host);
+ mutt_sleep(2);
+ return -1;
+ }
+ return 0;
+}
+
+int el_job_starttls(job_t *w)
+{
+ if (tls_negotiate(w) < 0)
+ return el_job_release(w, EL_RDHUP);
+ w->state = EL_LLP_INIT;
+ w->llp = &el_job_starttlsing;
+ return w->llp(w);
+}
+
ssize_t el_job_read(job_t *w, buffer_t *buf)
{
ssize_t nr;
return nr;
}
+void el_lock(void)
+{
+ pthread_mutex_lock(&el_mx);
+}
+
+void el_unlock(void)
+{
+ pthread_mutex_unlock(&el_mx);
+}
+
int el_dispatch(int timeout)
{
struct epoll_event events[FD_SETSIZE];
mutt_exit(EXIT_FAILURE);
}
+ el_lock();
while (--count >= 0) {
job_t *w = events[count].data.ptr;
int event = events[count].events;
int evt = 0;
+ if (w->cond) {
+ pthread_cond_signal(&el_cond);
+ w->cond = false;
+ }
+ gettimeofday(&w->mru, NULL);
switch (w->state) {
case EL_LLP_INIT:
w->llp(w);
break;
}
}
+ el_unlock();
return 0;
}
+
+void el_wait(volatile job_t *w)
+{
+ w->cond = true;
+ pthread_cond_wait(&el_cond, &el_mx);
+}
+
+static void *el_loop(void *data)
+{
+ time_t sec = time(NULL);
+
+ for (;;) {
+ struct timeval now;
+
+ el_dispatch(100);
+ pthread_testcancel();
+
+ gettimeofday(&now, NULL);
+ if (sec >= now.tv_sec)
+ continue;
+ sec = now.tv_sec;
+ now.tv_sec -= 10;
+
+ el_lock();
+ for (int i = jobs.len - 1; i >= 0; --i) {
+ job_t *w = jobs.arr[i];
+ if (timercmp(&now, &w->mru, >)) {
+ if (w->cond) {
+ pthread_cond_signal(&el_cond);
+ w->cond = false;
+ }
+ IGNORE(w->m->on_event(w, EL_EVT_WAKEUP));
+ }
+ }
+ el_unlock();
+ }
+}
+
+void el_initialize(void)
+{
+ pthread_mutexattr_t attr;
+
+ pthread_mutexattr_init(&attr);
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
+ pthread_mutex_init(&el_mx, &attr);
+ pthread_mutexattr_destroy(&attr);
+
+ gnutls_global_init();
+ epollfd = epoll_create(1024);
+ if (epollfd < 0) {
+ mutt_error("epoll_create");
+ mutt_exit(EXIT_FAILURE);
+ }
+ job_array_init(&jobs);
+ pthread_create(&el_thread, NULL, &el_loop, NULL);
+}
+
+void el_shutdown(void)
+{
+ pthread_cancel(el_thread);
+ pthread_join(el_thread, NULL);
+ job_array_wipe(&jobs);
+ close(epollfd);
+ gnutls_global_deinit();
+ pthread_mutex_destroy(&el_mx);
+}
projects / apps / madmutt.git / blobdiff