new package: libknot

* new subpackage: knot-utils

packages/libknot/build.sh

@@ -0,0 +1,13 @@
+TERMUX_PKG_HOMEPAGE=https://www.knot-dns.cz/
+TERMUX_PKG_DESCRIPTION="Knot DNS libraries"
+TERMUX_PKG_LICENSE="GPL-3.0"
+TERMUX_PKG_MAINTAINER="@termux"
+TERMUX_PKG_VERSION=3.2.4
+TERMUX_PKG_SRCURL=https://secure.nic.cz/files/knot-dns/knot-${TERMUX_PKG_VERSION}.tar.xz
+TERMUX_PKG_SHA256=299e8de918f9fc7ecbe625b41cb085e47cdda542612efbd51cd5ec60deb9dd13
+TERMUX_PKG_DEPENDS="libgnutls, liblmdb"
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
+--disable-daemon
+--disable-modules
+--enable-utilities
+"

packages/libknot/fix-hardcoded-paths.patch

@@ -0,0 +1,11 @@
+--- a/src/utils/common/resolv.c
++++ b/src/utils/common/resolv.c
+@@ -24,7 +24,7 @@
+ #include "libknot/libknot.h"
+ #include "contrib/ucw/lists.h"
+ 
+-#define RESOLV_FILE	"/etc/resolv.conf"
++#define RESOLV_FILE	"@TERMUX_PREFIX@/etc/resolv.conf"
+ 
+ srv_info_t* parse_nameserver(const char *str, const char *def_port)
+ {

packages/libknot/knot-utils.subpackage.sh

@@ -0,0 +1,6 @@
+TERMUX_SUBPKG_DESCRIPTION="Knot DNS utilities"
+TERMUX_SUBPKG_INCLUDE="
+bin/
+share/man/man1/
+"
+TERMUX_SUBPKG_DEPENDS="libedit, libidn2, libnghttp2, resolv-conf"

packages/libknot/pthread_cancel.patch

@@ -0,0 +1,92 @@
+--- a/src/contrib/conn_pool.c
++++ b/src/contrib/conn_pool.c
+@@ -63,10 +63,26 @@
+ 	return fd;
+ }
+ 
++#ifdef __ANDROID__
++static void thread_signal_handler(int signum)
++{
++	pthread_exit(0);
++}
++#endif
++
+ static void *closing_thread(void *_arg)
+ {
+ 	conn_pool_t *pool = _arg;
+ 
++#ifdef __ANDROID__
++	struct sigaction actions;
++	memset(&actions, 0, sizeof(actions));
++	sigemptyset(&actions.sa_mask);
++	actions.sa_flags = 0;
++	actions.sa_handler = thread_signal_handler;
++	sigaction(SIGUSR2, &actions, NULL);
++#endif
++
+ 	while (true) {
+ 		knot_time_t now = knot_time(), next = 0;
+ 		knot_timediff_t timeout = conn_pool_timeout(pool, 0);
+@@ -117,7 +133,11 @@
+ void conn_pool_deinit(conn_pool_t *pool)
+ {
+ 	if (pool != NULL) {
++#ifndef __ANDROID__
+ 		pthread_cancel(pool->closing_thread);
++#else
++		pthread_kill(pool->closing_thread, SIGUSR2);
++#endif
+ 		pthread_join(pool->closing_thread, NULL);
+ 
+ 		int fd;
+--- a/src/knot/common/stats.c
++++ b/src/knot/common/stats.c
+@@ -249,8 +249,24 @@
+ 	free(file_name);
+ }
+ 
++#ifdef __ANDROID__
++static void thread_signal_handler(int signum)
++{
++	pthread_exit(0);
++}
++#endif
++
+ static void *dumper(void *data)
+ {
++#ifdef __ANDROID__
++	struct sigaction actions;
++	memset(&actions, 0, sizeof(actions));
++	sigemptyset(&actions.sa_mask);
++	actions.sa_flags = 0;
++	actions.sa_handler = thread_signal_handler;
++	sigaction(SIGUSR2, &actions, NULL);
++#endif
++
+ 	while (true) {
+ 		assert(stats.timer > 0);
+ 		sleep(stats.timer);
+@@ -291,7 +307,11 @@
+ 		}
+ 	// Stop current dumping.
+ 	} else if (stats.active_dumper) {
++#ifndef __ANDROID__
+ 		pthread_cancel(stats.dumper);
++#else
++		pthread_kill(stats.dumper, SIGUSR2);
++#endif
+ 		pthread_join(stats.dumper, NULL);
+ 		stats.active_dumper = false;
+ 	}
+@@ -300,7 +320,11 @@
+ void stats_deinit(void)
+ {
+ 	if (stats.active_dumper) {
++#ifndef __ANDROID__
+ 		pthread_cancel(stats.dumper);
++#else
++		pthread_kill(stats.dumper, SIGUSR2);
++#endif
+ 		pthread_join(stats.dumper, NULL);
+ 	}
+