document defaults of referenced XDG env vars

so users don't have to google the spec.

AUTHORS

@@ -1,17 +1,101 @@
-Oswald Buddenhagen <ossi@users.sf.net>
-	* Contributor, current maintainer
-
-Theodore Ts'o <tytso@mit.edu>
-	* Contributor, Debian package co-maintainer
-
-Nicolas Boullis <nboullis@debian.org>
-	* Debian package maintainer and minor upstream contributions
-
-Michael Elkins <me@mutt.org>
-	* Original author
+Contact
+=======
 
 Send questions and bug reports to the isync-devel@lists.sourceforge.net
 mailing list.
 
-_DON'T_ report bugs to Michael, not even in a CC: - he is not actively
+Do _NOT_ report bugs to Michael, not even in a CC: - he is not actively
 involved in isync development any more.
+
+Lead Developers
+===============
+
+Oswald Buddenhagen <ossi@users.sf.net>
+- Current maintainer
+
+Michael Elkins <me@mutt.org>
+- Original author
+
+Contributors
+============
+
+(Some of these people also contributed bugfixes and optimizations.)
+(In chronological order.)
+
+Jeremy Katz <katzj@linuxpower.org>
+- UseNamespace & UseSSL* options
+
+Daniel Resare <noa@metamatrix.se>
+- Numerous SSL handling improvements
+
+Eivind Eklund <eivind@FreeBSD.org>
+- MaxMessages option
+
+Theodore Ts'o <tytso@mit.edu>
+- get-cert script
+- Maildir UID mapping improvements
+- Initial version of partial async IMAP support
+
+Marc Hoersken <info@marc-hoersken.de>
+- CopyArrivalDate option
+
+Jack Stone <jwjstone@fastmail.fm>
+Jan Synacek <jsynacek@redhat.com>
+- SASL support
+
+Jesse Weaver <pianohacker@gmail.com>
+- IMAP stream compression support
+
+Anton Khirnov <anton@khirnov.net>
+- ClientKey & ClientCertificate options
+
+Michael J Gruber <github@grubix.eu>
+- Support for the $Forwarded/Passed flag
+
+Patrick Steinhardt <ps@pks.im>
+- UserCmd option
+
+Oliver Runge <oliver.runge@gmail.com>
+- UseKeychain option
+
+Georgy Kibardin <georgy@kibardin.name>
+- Support for UTF-7 IMAP mailbox names
+
+Honorary Contributors
+=====================
+
+(These people contributed patches that were too small or obvious
+ to claim copyright, or were rewritten from scratch.)
+(In alphabetical order.)
+
+Alessandro Ghedini <ghedo@debian.org>
+Andreas Grapentin <andreas@grapentin.org>
+Aurélien Francillon <aurelien.francillon@eurecom.fr>
+Ben Kibbey <bjk@luxsci.net>
+Caspar Schutijser <caspar@schutijser.com>
+Cedric Ware <cedric.ware__bml@normalesup.org>
+Dmitrij D. Czarkoff <czarkoff@gmail.com>
+Dmitry Torokhov <dtor@chromium.org>
+Felipe Contreras <felipe.contreras@gmail.com>
+Felix Janda <felix.janda@posteo.de>
+Gergely Risko <gergely@risko.hu>
+Sung Pae "guns" <self@sungpae.com>
+Helmut Grohne <helmut@subdivi.de>
+Hugo Haas <hugo@larve.net>
+Jaroslav Suchanek <jaroslav.suchanek@gmail.com>
+Jeremie Courreges-Anglas <jca@openbsd.org>
+Klemens Nanni <kn@openbsd.org>
+Lorenzo Martignoni <lorenzo.martignoni@technologist.com>
+Magnus Jonsson <bigfoot@acc.umu.se>
+Marcin Niestroj <macius1990w@gmail.com>
+Martin Stenberg <martin@gnutiken.se>
+Mike Delaney <mdelan@lusars.net>
+Nicolas Boullis <nboullis@debian.org>
+Nihal Jere <nihal@nihaljere.xyz>
+Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+Remko Tronçon <remko@el-tramo.be>
+sbfnk@users.sf.net
+Thomas Roessler <roessler@does-not-exist.org>
+Todd T. Fries <todd@fries.net>
+Vincent Bernat <vincent@bernat.ch>
+Yuri D'Elia <wavexx@thregr.org>

src/main.c

@@ -89,6 +89,26 @@ PACKAGE " " VERSION " - mailbox synchronizer\n"
 	exit( code );
 }
 
+static int child_pipe[2];
+static notifier_t child_notifier;
+
+static void
+childHandler( int n ATTR_UNUSED )
+{
+	// We can't just reap everything here, as we might steal children
+	// from popen(). Let the main loop handle it synchronously instead.
+	char dummy = 0;
+	write( child_pipe[1], &dummy, 1 );
+}
+
+static void
+childReaper( int events ATTR_UNUSED, void *aux ATTR_UNUSED )
+{
+	char dummy;
+	while (read( child_pipe[0], &dummy, 1 ) == 1) {}
+	while (waitpid( -1, NULL, WNOHANG ) > 0) {}
+}
+
 #ifdef __linux__
 static void ATTR_NORETURN
 crashHandler( int n )
@@ -541,9 +561,31 @@ main( int argc, char **argv )
 	if (load_config( config ))
 		return 1;
 
+	signal( SIGPIPE, SIG_IGN );
+
+	if (pipe( child_pipe )) {
+		perror( "pipe" );
+		return 1;
+	}
+	fcntl( child_pipe[0], F_SETFL, O_NONBLOCK );
+	fcntl( child_pipe[1], F_SETFL, O_NONBLOCK );
+	init_notifier( &child_notifier, child_pipe[0], childReaper, NULL );
+	conf_notifier( &child_notifier, 0, POLLIN );
+	struct sigaction sa = { 0 };
+	sa.sa_handler = childHandler;
+	sa.sa_flags = SA_NOCLDSTOP | SA_RESTART;
+	sigaction( SIGCHLD, &sa, NULL );
+
 	if (mvars->list_stores)
 		list_stores( mvars, argv + oind );
 	else
 		sync_chans( mvars, argv + oind );
 	return mvars->ret;
 }
+
+void
+cleanup_mainloop( void )
+{
+	cleanup_drivers();
+	wipe_notifier( &child_notifier );
+}

src/main_list.c

@@ -126,7 +126,7 @@ do_list_stores( list_vars_t *lvars )
 	  next:
 		advance_store( lvars );
 	}
-	cleanup_drivers();
+	cleanup_mainloop();
 }
 
 static void

src/main_p.h

@@ -21,5 +21,6 @@ typedef struct {
 
 void sync_chans( core_vars_t *cvars, char **argv );
 void list_stores( core_vars_t *cvars, char **argv );
+void cleanup_mainloop( void );
 
 #endif

src/main_sync.c

@@ -43,9 +43,11 @@ print_stats( void )
 static void
 stats_timeout( void *aux ATTR_UNUSED )
 {
+	if (stats_steps != -1) {
 		stats_steps = -1;
-	conf_wakeup( &stats_wakeup, 200 );
 		print_stats();
+	}
+	conf_wakeup( &stats_wakeup, 200 );
 }
 
 void
@@ -55,8 +57,10 @@ stats( void )
 		return;
 
 	// If the main loop appears to be running, skip the sync path.
-	if (stats_steps < 0)
+	if (stats_steps < 0) {
+		stats_steps = -2;
 		return;
+	}
 
 	// Rate-limit the (somewhat) expensive timer queries.
 	if (++stats_steps < 10)
@@ -492,7 +496,7 @@ do_sync_chans( main_vars_t *mvars )
 	  next:
 		advance_chan( mvars );
 	}
-	cleanup_drivers();
+	cleanup_mainloop();
 	if (!mvars->cvars->list && (DFlags & PROGRESS))
 		wipe_wakeup( &stats_wakeup );
 }
@@ -668,7 +672,7 @@ static void
 do_sync_boxes( main_vars_t *mvars )
 {
 	mvars->box_cben = 0;
-	for (;;) {
+	while (mvars->state[F] == ST_OPEN && mvars->state[N] == ST_OPEN) {
 		if (mvars->chanptr->boxlist) {
 			box_ent_t *mbox = mvars->boxptr;
 			if (!mbox)
@@ -730,13 +734,11 @@ done_sync( int sts, void *aux )
 	stats();
 	if (sts) {
 		mvars->cvars->ret = 1;
-		if (sts & (SYNC_BAD(F) | SYNC_BAD(N))) {
 		if (sts & SYNC_BAD(F))
 			mvars->state[F] = ST_CLOSED;
 		if (sts & SYNC_BAD(N))
 			mvars->state[N] = ST_CLOSED;
 	}
-	}
 	mvars->box_done = 1;
 	if (mvars->box_cben)
 		do_sync_boxes( mvars );

src/mbsync.1

@@ -36,6 +36,7 @@ Multiple replicas of each mailbox can be maintained.
 Read configuration from \fIfile\fR.
 By default, the configuration is read from $XDG_CONFIG_HOME/isyncrc, and
 if that does not exist, ~/.mbsyncrc is tried in turn.
+$XDG_CONFIG_HOME defaults to ~/.config if not set.
 .TP
 \fB-a\fR, \fB--all\fR
 Select all configured Channels. Any Channel/Group specifications on the
@@ -80,8 +81,10 @@ operations are determined, but no modifications are actually made
 to either the mailboxes or the state files.
 .TP
 \fB-e\fR, \fB--ext-exit\fR
-Return an extended exit code: Add 32 resp. 64 to the code if any
-modifications were made on the far resp. near side.
+Return an extended exit code: Add 32 or 64 to the code if any
+modifications were made on the far or near side, respectively; these
+are not mutually exclusive, so the code may be 96 if changes were both
+pushed and pulled.
 An error may be reported at the same time, so the code may be for example
 65 if some changes were successfully pulled, while others failed.
 .TP
@@ -730,7 +733,8 @@ the appended string is made up according to the pattern
 (see also \fBFieldDelimiter\fR below).
 .br
 (Global default: \fI$XDG_STATE_HOME/isync/\fR, with a fallback to
-\fI~/.mbsync/\fR if only that exists)
+\fI~/.mbsync/\fR if only that exists.
+$XDG_STATE_HOME defaults to ~/.local/state if not set.)
 .
 .SS Groups
 .TP
@@ -856,11 +860,11 @@ There is no risk as long as the IMAP mailbox is accessed by only one client
 .
 .SH FILES
 .TP
-.B $XDG_CONFIG_HOME/isyncrc
+\fB$XDG_CONFIG_HOME/isyncrc\fR (usually \fB~/.config/isyncrc\fR)
 Default configuration file.
 See also the example file in the documentation directory.
 .TP
-.B $XDG_STATE_HOME/isync/
+\fB$XDG_STATE_HOME/isync/\fR (usually \fB~/.local/state/isync/\fR)
 Directory containing synchronization state files.
 .TP
 .B ~/.mbsyncrc

src/socket.c

@@ -28,6 +28,7 @@
 #endif
 
 enum {
+	SCK_RESOLVING,
 	SCK_CONNECTING,
 #ifdef HAVE_LIBSSL
 	SCK_STARTTLS,
@@ -415,6 +416,7 @@ static void socket_fd_cb( int, void * );
 static void socket_fake_cb( void * );
 static void socket_timeout_cb( void * );
 
+static void socket_resolve( conn_t * );
 static void socket_connect_one( conn_t * );
 static void socket_connect_next( conn_t * );
 static void socket_connect_failed( conn_t * );
@@ -422,15 +424,21 @@ static void socket_connected( conn_t * );
 static void socket_connect_bail( conn_t * );
 
 static void
-socket_open_internal( conn_t *sock, int fd )
+socket_register_internal( conn_t *sock, int fd )
 {
 	sock->fd = fd;
-	fcntl( fd, F_SETFL, O_NONBLOCK );
 	init_notifier( &sock->notify, fd, socket_fd_cb, sock );
 	init_wakeup( &sock->fd_fake, socket_fake_cb, sock );
 	init_wakeup( &sock->fd_timeout, socket_timeout_cb, sock );
 }
 
+static void
+socket_open_internal( conn_t *sock, int fd )
+{
+	fcntl( fd, F_SETFL, O_NONBLOCK );
+	socket_register_internal( sock, fd );
+}
+
 static void
 socket_close_internal( conn_t *sock )
 {
@@ -441,32 +449,6 @@ socket_close_internal( conn_t *sock )
 	sock->fd = -1;
 }
 
-#ifndef HAVE_IPV6
-struct addr_info {
-	struct addr_info *ai_next;
-	struct sockaddr_in ai_addr[1];
-};
-
-#define freeaddrinfo(ai) free( ai )
-
-static struct addr_info *
-init_addrinfo( struct hostent *he )
-{
-	uint naddr = 0;
-	for (char **addr = he->h_addr_list; *addr; addr++)
-		naddr++;
-	struct addr_info *caddr = nfzalloc( naddr * sizeof(struct addrinfo) );
-	struct addr_info *ret, **caddrp = &ret;
-	for (char **addr = he->h_addr_list; *addr; addr++, caddr++) {
-		caddr->ai_addr->sin_family = AF_INET;
-		memcpy( &caddr->ai_addr->sin_addr.s_addr, *addr, sizeof(struct in_addr) );
-		*caddrp = caddr;
-		caddrp = &caddr->ai_next;
-	}
-	return ret;
-}
-#endif
-
 void
 socket_connect( conn_t *sock, void (*cb)( int ok, void *aux ) )
 {
@@ -501,77 +483,202 @@ socket_connect( conn_t *sock, void (*cb)( int ok, void *aux ) )
 		info( "\vok\n" );
 		socket_connected( sock );
 	} else {
-#ifdef HAVE_IPV6
-		int gaierr;
-		struct addrinfo hints;
+		socket_resolve( sock );
+	}
+}
 
-		memset( &hints, 0, sizeof(hints) );
+static void
+pipe_write( int fd, void *buf, int len )
+{
+	do {
+		int wrote = write( fd, buf, len );
+		if (wrote < 0) {
+			perror( "write" );
+			_exit( 1 );
+		}
+		buf = ((char *)buf) + wrote;
+		len -= wrote;
+	} while (len);
+}
+
+static void
+socket_resolve( conn_t *sock )
+{
+	info( "Resolving %s...\n", sock->conf->host );
+
+	int pfd[2];
+	if (pipe( pfd )) {
+		perror( "pipe" );
+		exit( 1 );
+	}
+	switch (fork()) {
+	case -1:
+		perror( "fork" );
+		exit( 1 );
+	case 0:
+		break;
+	default:
+		close( pfd[1] );
+		socket_register_internal( sock, pfd[0] );
+		sock->state = SCK_RESOLVING;
+		conf_notifier( &sock->notify, 0, POLLIN );
+		socket_expect_activity( sock, 1 );
+		return;
+	}
+
+#ifdef HAVE_IPV6
+	struct addrinfo *res, hints = { 0 };
 	hints.ai_family = AF_UNSPEC;
 	hints.ai_socktype = SOCK_STREAM;
 	hints.ai_flags = AI_ADDRCONFIG;
-		infon( "Resolving %s... ", conf->host );
-		if ((gaierr = getaddrinfo( conf->host, NULL, &hints, &sock->addrs ))) {
-			error( "Error: Cannot resolve server '%s': %s\n", conf->host, gai_strerror( gaierr ) );
-			socket_connect_bail( sock );
-			return;
+	int gaierr = getaddrinfo( sock->conf->host, NULL, &hints, &res );
+	pipe_write( pfd[1], &gaierr, sizeof(gaierr) );
+	if (gaierr)
+		_exit( 1 );
+	static_assert( sizeof(((struct addrinfo){ 0 }).ai_family) == sizeof(int), "unexpected size of ai_family" );
+	static_assert( sizeof(struct in_addr) % sizeof(int) == 0, "unexpected size of struct in_addr" );
+	static_assert( sizeof(struct in6_addr) % sizeof(int) == 0, "unexpected size of struct in6_addr" );
+	int nbytes = 0;
+	for (struct addrinfo *cres = res; cres; cres = cres->ai_next) {
+		if (cres->ai_family == AF_INET) {
+			nbytes += sizeof(int) + sizeof(struct in_addr);
+		} else {
+			assert( cres->ai_family == AF_INET6 );
+			nbytes += sizeof(int) + sizeof(struct in6_addr);
+		}
+	}
+	pipe_write( pfd[1], &nbytes, sizeof(nbytes) );
+	for (struct addrinfo *cres = res; cres; cres = cres->ai_next) {
+		pipe_write( pfd[1], &cres->ai_family, sizeof(int) );
+		if (cres->ai_family == AF_INET)
+			pipe_write( pfd[1], &((struct sockaddr_in *)cres->ai_addr)->sin_addr, sizeof(struct in_addr) );
+		else
+			pipe_write( pfd[1], &((struct sockaddr_in6 *)cres->ai_addr)->sin6_addr, sizeof(struct in6_addr) );
 	}
-		info( "\vok\n" );
 #else
-		struct hostent *he;
+	struct hostent *he = gethostbyname( sock->conf->host );
+	int herrno = he ? 0 : h_errno;
+	pipe_write( pfd[1], &herrno, sizeof(herrno) );
+	if (!he)
+		_exit( 1 );
+	static_assert( sizeof(struct in_addr) % sizeof(int) == 0, "unexpected size of struct in_addr" );
+	int nbytes = 0;
+	for (char **addr = he->h_addr_list; *addr; addr++)
+		nbytes += sizeof(struct in_addr);
+	pipe_write( pfd[1], &nbytes, sizeof(nbytes) );
+	for (char **addr = he->h_addr_list; *addr; addr++)
+		pipe_write( pfd[1], *addr, sizeof(struct in_addr) );
+#endif
+	_exit( 0 );
+}
 
-		infon( "Resolving %s... ", conf->host );
-		he = gethostbyname( conf->host );
-		if (!he) {
-			error( "Error: Cannot resolve server '%s': %s\n", conf->host, hstrerror( h_errno ) );
+static void
+pipe_read( int fd, void *buf, int len )
+{
+	do {
+		int didrd = read( fd, buf, len );
+		if (didrd < 0) {
+			sys_error( "read" );
+			exit( 1 );
+		}
+		if (!didrd) {
+			error( "read: unexpected EOF\n" );
+			exit( 1 );
+		}
+		buf = ((char *)buf) + didrd;
+		len -= didrd;
+	} while (len);
+}
+
+static void
+socket_resolve_finalize( conn_t *sock )
+{
+	int errcode;
+	pipe_read( sock->fd, &errcode, sizeof(errcode) );
+	if (errcode) {
+#ifdef HAVE_IPV6
+		const char *err = gai_strerror( errcode );
+#else
+		const char *err = hstrerror( errcode );
+#endif
+		error( "Error: Cannot resolve server '%s': %s\n", sock->conf->host, err );
+		socket_close_internal( sock );
 		socket_connect_bail( sock );
 		return;
 	}
-		info( "\vok\n" );
 
-		sock->addrs = init_addrinfo( he );
-#endif
-		sock->curr_addr = sock->addrs;
+	int nbytes;
+	pipe_read( sock->fd, &nbytes, sizeof(nbytes) );
+	char *addrs = nfmalloc( nbytes );
+	pipe_read( sock->fd, addrs, nbytes );
+	sock->curr_addr = sock->addrs = addrs;
+	sock->addrs_end = addrs + nbytes;
+	socket_close_internal( sock );  // Get rid of the pipe
 	socket_connect_one( sock );
-	}
+}
+
+static void
+socket_resolve_timeout( conn_t *sock )
+{
+	error( "Error: Cannot resolve server '%s': timeout.\n", sock->conf->host );
+	socket_close_internal( sock );
+	socket_connect_bail( sock );
 }
 
 static void
 socket_connect_one( conn_t *sock )
 {
-	int s;
-#ifdef HAVE_IPV6
-	struct addrinfo *ai;
-#else
-	struct addr_info *ai;
-#endif
-
-	if (!(ai = sock->curr_addr)) {
+	char *ai = sock->curr_addr;
+	if (ai == sock->addrs_end) {
 		error( "No working address found for %s\n", sock->conf->host );
 		socket_connect_bail( sock );
 		return;
 	}
 
+	union {
+		struct sockaddr any;
+		struct sockaddr_in ip4;
 #ifdef HAVE_IPV6
-	if (ai->ai_family == AF_INET6) {
-		struct sockaddr_in6 *in6 = ((struct sockaddr_in6 *)ai->ai_addr);
+		struct sockaddr_in6 ip6;
+#endif
+	} addr;
+
+#ifdef HAVE_IPV6
+	int fam = *(int *)ai;
+	ai += sizeof(int);
+	int addr_len;
+	if (fam == AF_INET6) {
+		addr_len = sizeof(addr.ip6);
+		addr.ip6.sin6_addr = *(struct in6_addr *)ai;
+		addr.ip6.sin6_flowinfo = 0;
+		addr.ip6.sin6_scope_id = 0;
+		ai += sizeof(struct in6_addr);
+	} else {
+		addr_len = sizeof(addr.ip4);
+#else
+	const int fam = AF_INET;
+	const int addr_len = sizeof(addr.ip4);
+	{
+#endif
+		addr.ip4.sin_addr = *(struct in_addr *)ai;
+		ai += sizeof(struct in_addr);
+	}
+	sock->curr_addr = ai;
+
+#ifdef HAVE_IPV6
+	if (fam == AF_INET6) {
 		char sockname[64];
-		in6->sin6_port = htons( sock->conf->port );
+		inet_ntop( fam, &addr.ip6.sin6_addr, sockname, sizeof(sockname) );
 		nfasprintf( &sock->name, "%s ([%s]:%hu)",
-		            sock->conf->host, inet_ntop( AF_INET6, &in6->sin6_addr, sockname, sizeof(sockname) ), sock->conf->port );
+		            sock->conf->host, sockname, sock->conf->port );
 	} else
 #endif
 	{
-		struct sockaddr_in *in = ((struct sockaddr_in *)ai->ai_addr);
-		in->sin_port = htons( sock->conf->port );
 		nfasprintf( &sock->name, "%s (%s:%hu)",
-		            sock->conf->host, inet_ntoa( in->sin_addr ), sock->conf->port );
+		            sock->conf->host, inet_ntoa( addr.ip4.sin_addr ), sock->conf->port );
 	}
 
-#ifdef HAVE_IPV6
-	s = socket( ai->ai_family, SOCK_STREAM, 0 );
-#else
-	s = socket( PF_INET, SOCK_STREAM, 0 );
-#endif
+	int s = socket( fam, SOCK_STREAM, 0 );
 	if (s < 0) {
 		socket_connect_next( sock );
 		return;
@@ -579,11 +686,9 @@ socket_connect_one( conn_t *sock )
 	socket_open_internal( sock, s );
 
 	infon( "Connecting to %s... ", sock->name );
-#ifdef HAVE_IPV6
-	if (connect( s, ai->ai_addr, ai->ai_addrlen )) {
-#else
-	if (connect( s, ai->ai_addr, sizeof(*ai->ai_addr) )) {
-#endif
+	addr.any.sa_family = fam;
+	addr.ip4.sin_port = htons( sock->conf->port );  // Aliased for ip6
+	if (connect( s, &addr.any, addr_len )) {
 		if (errno != EINPROGRESS) {
 			socket_connect_failed( sock );
 			return;
@@ -604,7 +709,6 @@ socket_connect_next( conn_t *conn )
 	sys_error( "Cannot connect to %s", conn->name );
 	free( conn->name );
 	conn->name = NULL;
-	conn->curr_addr = conn->curr_addr->ai_next;
 	socket_connect_one( conn );
 }
 
@@ -618,10 +722,8 @@ socket_connect_failed( conn_t *conn )
 static void
 socket_connected( conn_t *conn )
 {
-	if (conn->addrs) {
-		freeaddrinfo( conn->addrs );
+	free( conn->addrs );
 	conn->addrs = NULL;
-	}
 	conf_notifier( &conn->notify, 0, POLLIN );
 	socket_expect_activity( conn, 0 );
 	conn->state = SCK_READY;
@@ -631,10 +733,8 @@ socket_connected( conn_t *conn )
 static void
 socket_cleanup_names( conn_t *conn )
 {
-	if (conn->addrs) {
-		freeaddrinfo( conn->addrs );
+	free( conn->addrs );
 	conn->addrs = NULL;
-	}
 	free( conn->name );
 	conn->name = NULL;
 }
@@ -1106,6 +1206,11 @@ socket_fd_cb( int events, void *aux )
 {
 	conn_t *conn = (conn_t *)aux;
 
+	if (conn->state == SCK_RESOLVING) {
+		socket_resolve_finalize( conn );
+		return;
+	}
+
 	if ((events & POLLERR) || conn->state == SCK_CONNECTING) {
 		int soerr;
 		socklen_t selen = sizeof(soerr);
@@ -1168,7 +1273,9 @@ socket_timeout_cb( void *aux )
 {
 	conn_t *conn = (conn_t *)aux;
 
-	if (conn->state == SCK_CONNECTING) {
+	if (conn->state == SCK_RESOLVING) {
+		socket_resolve_timeout( conn );
+	} else if (conn->state == SCK_CONNECTING) {
 		errno = ETIMEDOUT;
 		socket_connect_failed( conn );
 	} else {

src/socket.h

@@ -57,11 +57,7 @@ typedef struct {
 	int fd;
 	int state;
 	const server_conf_t *conf; /* needed during connect */
-#ifdef HAVE_IPV6
-	struct addrinfo *addrs, *curr_addr; /* needed during connect */
-#else
-	struct addr_info *addrs, *curr_addr; /* needed during connect */
-#endif
+	char *addrs, *addrs_end, *curr_addr;  // needed during connect; assumed to be int-aligned
 	char *name;
 #ifdef HAVE_LIBSSL
 	SSL *ssl;

src/util.c

@@ -1110,6 +1110,8 @@ event_wait( void )
 	case 0:
 		return;
 	case -1:
+		if (errno == EINTR)
+			return;
 		perror( "poll() failed in event loop" );
 		abort();
 	default:
@@ -1162,6 +1164,8 @@ event_wait( void )
 	case 0:
 		return;
 	case -1:
+		if (errno == EINTR)
+			return;
 		perror( "select() failed in event loop" );
 		abort();
 	default: