version 0.50

Add fallback for the close_range syscall wrapper. This is needed for
musl libc, which currently does not have a close_range wrapper.

Also set errno on errors.

NEWS.md

@@ -4,6 +4,18 @@ OpenRC NEWS
 This file will contain a list of notable changes for each release. Note
 the information in this file is in reverse order.
 
+## OpenRC 0.50
+
+This is a bug fix release which fixes a significant performance issue on
+musl libc systems.
+
+## OpenRC 0.49
+
+This release adds support for glibc's builtin 
+strlcpy, strlcat etc functions, which will be in posix next.
+Also, it fixes completions.
+
+
 ## OpenRC 0.48
 
 This release is a maintenance release; it has no user-facing changes.

bash-completion/rc-service

@@ -92,13 +92,11 @@ _rc_service()
 			return 0
 		elif [[ ${COMP_CWORD} -eq 2 ]] && [[ ${prev} != -* ]]; then # if second word typed and we didn't type in a function
 			rc-service --exists "$prev" || return
-			shopt -s extglob
 			while read -r _ line; do
 				if [[ $line == +([[:alnum:]_]):* ]]; then
 					opts+="${line%%:*} "
 				fi
 			done < <(rc-service "$prev" describe 2>&1)
-			shopt -u extglob
 			COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
 			return 0
 		fi

meson.build

@@ -1,5 +1,5 @@
 project('OpenRC', 'c',
-  version : '0.48',
+  version : '0.50',
   license: 'BSD-2',
   default_options : [
     'c_std=c99',
@@ -195,12 +195,14 @@ if cc.compiles(malloc_attribute_test, name : 'malloc attribute with arguments')
   add_project_arguments('-DHAVE_MALLOC_EXTENDED_ATTRIBUTE', language: 'c')
 endif
 
-if cc.has_function('closefrom', prefix: '#define _GNU_SOURCE\n#include <unistd.h>')
-  add_project_arguments('-DHAVE_CLOSEFROM', language: 'c')
+if cc.has_function('close_range', prefix: '#define _GNU_SOURCE\n#include <unistd.h>')
+  add_project_arguments('-DHAVE_CLOSE_RANGE', language: 'c')
+elif cc.has_header('linux/close_range.h')
+  add_project_arguments('-DHAVE_LINUX_CLOSE_RANGE_H', language: 'c')
 endif
-if cc.has_function('close_range', prefix: '#define _GNU_SOURCE\n#include <unistd.h>') and \
-    cc.has_header_symbol('unistd.h', 'CLOSE_RANGE_CLOEXEC', prefix: '#define _GNU_SOURCE')
-  add_project_arguments('-DHAVE_CLOSE_RANGE_CLOEXEC', language: 'c')
+
+if cc.has_function('strlcpy', prefix: '#define _GNU_SOURCE\n#include <string.h>')
+  add_project_arguments('-DHAVE_STRLCPY', language: 'c')
 endif
 
 incdir = include_directories('src/shared')

src/libeinfo/libeinfo.c

@@ -146,9 +146,7 @@ static const char *const color_terms[] = {
 };
 #endif
 
-/* strlcat and strlcpy are nice, shame glibc does not define them */
-#ifdef __GLIBC__
-#  if !defined (__UCLIBC__) && !defined (__dietlibc__)
+#ifndef HAVE_STRLCPY
 static size_t
 strlcat(char *dst, const char *src, size_t size)
 {
@@ -176,7 +174,6 @@ strlcat(char *dst, const char *src, size_t size)
 
 	return dst_n + (s - src);
 }
-#  endif
 #endif
 
 static bool

src/openrc/rc.c

@@ -527,7 +527,7 @@ runlevel_config(const char *service, const char *level)
 	char *conf, *dir;
 	bool retval;
 
-	dir = dirname(init);
+	dir = dirname(dirname(init));
 	xasprintf(&conf, "%s/conf.d/%s.%s", dir, service, level);
 	retval = exists(conf);
 	free(conf);

src/shared/helpers.h

@@ -37,10 +37,8 @@
 
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 
-#ifdef __GLIBC__
-#  if !defined (__UCLIBC__) && !defined (__dietlibc__)
+#ifndef HAVE_STRLCPY
 #    define strlcpy(dst, src, size) snprintf(dst, size, "%s", src)
-#  endif
 #endif
 
 #ifndef timespecsub

src/shared/misc.c

@@ -15,10 +15,18 @@
  *    except according to the terms contained in the LICENSE file.
  */
 
+#ifdef HAVE_CLOSE_RANGE
+/* For close_range() */
+# define _GNU_SOURCE
+#endif
+
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#ifdef HAVE_LINUX_CLOSE_RANGE_H
+#  include <linux/close_range.h>
+#endif
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -26,6 +34,7 @@
 #include <sys/file.h>
 #include <sys/time.h>
 #ifdef __linux__
+#  include <sys/syscall.h> /* for close_range */
 #  include <sys/sysinfo.h>
 #endif
 #include <sys/types.h>
@@ -500,3 +509,30 @@ pid_t get_pid(const char *applet,const char *pidfile)
 
 	return pid;
 }
+
+#ifndef HAVE_CLOSE_RANGE
+static inline int close_range(int first RC_UNUSED,
+			      int last RC_UNUSED,
+			      unsigned int flags RC_UNUSED)
+{
+#ifdef SYS_close_range
+	return syscall(SYS_close_range, first, last, flags);
+#else
+	errno = ENOSYS;
+	return -1;
+#endif
+}
+#endif
+#ifndef CLOSE_RANGE_CLOEXEC
+# define CLOSE_RANGE_CLOEXEC	(1U << 2)
+#endif
+
+void
+cloexec_fds_from(int first)
+{
+	int i;
+	if (close_range(first, UINT_MAX, CLOSE_RANGE_CLOEXEC) < 0) {
+		for (i = getdtablesize() - 1; i >= first; --i)
+			fcntl(i, F_SETFD, FD_CLOEXEC);
+	}
+}

src/shared/misc.h

@@ -73,4 +73,6 @@ void from_time_t(char *time_string, time_t tv);
 time_t to_time_t(char *timestring);
 pid_t get_pid(const char *applet, const char *pidfile);
 
+void cloexec_fds_from(int);
+
 #endif

src/start-stop-daemon/start-stop-daemon.c

@@ -1098,12 +1098,7 @@ int main(int argc, char **argv)
 				|| rc_yesno(getenv("EINFO_QUIET")))
 			dup2(stderr_fd, STDERR_FILENO);
 
-#ifdef HAVE_CLOSEFROM
-		closefrom(3);
-#else
-		for (i = getdtablesize() - 1; i >= 3; --i)
-			close(i);
-#endif
+		cloexec_fds_from(3);
 
 		if (scheduler != NULL) {
 			int scheduler_index;

src/supervise-daemon/supervise-daemon.c

@@ -22,11 +22,6 @@
 #define ONE_SECOND    1000000000
 #define ONE_MS           1000000
 
-#ifdef HAVE_CLOSE_RANGE_CLOEXEC
-/* For close_range() */
-# define _GNU_SOURCE
-#endif
-
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
@@ -570,11 +565,8 @@ RC_NORETURN static void child_process(char *exec, char **argv)
 	if (redirect_stderr || rc_yesno(getenv("EINFO_QUIET")))
 		dup2(stderr_fd, STDERR_FILENO);
 
-#ifdef HAVE_CLOSE_RANGE_CLOEXEC
-	if (close_range(3, UINT_MAX, CLOSE_RANGE_CLOEXEC) < 0)
-#endif
-		for (i = getdtablesize() - 1; i >= 3; --i)
-			fcntl(i, F_SETFD, FD_CLOEXEC);
+	cloexec_fds_from(3);
+
 	cmdline = make_cmdline(argv);
 	syslog(LOG_INFO, "Child command line: %s", cmdline);
 	free(cmdline);

tools/meson_final.sh

@@ -11,7 +11,6 @@ sysvinit="$4"
 if [ "${os}" != Linux ]; then
 	install -d "${DESTDIR}/${rc_libexecdir}"/init.d
 fi
-install -d "${DESTDIR}/${rc_libexecdir}"/tmp
 install -m 644 "${MESON_BUILD_ROOT}/src/shared/version" "${DESTDIR}/${rc_libexecdir}"
 if [ "${os}" = Linux ] && [ "${sysvinit}" = yes ]; then
 	ln -s openrc-init "${DESTDIR}/${sbindir}"/init