linux-qubasis

commit 42d398c118c36fdad8a0bd53169df095c78bce4b
parent 13788e858a0e13b4463e011bdcf3f952d175d46e
Author: Jul <jul@9o.is>
Date:   Tue, 16 Sep 2025 19:45:42 +0800

add sinit

Diffstat:
M
.gitmodules
 | 
3
+++
M
gen.sh
 | 
1
+
A
pkg/sinit/config.h
 | 
5
+++++
A
pkg/sinit/gen.sh
 | 
17
+++++++++++++++++
A
pkg/sinit/repo
 | 
1
+
A
pkg/sinit/shutdown.c
 | 
87
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

6 files changed, 114 insertions(+), 0 deletions(-)
diff --git a/.gitmodules b/.gitmodules
@@ -86,3 +86,6 @@
 	path = pkg/ubase/repo
 	url = git://git.suckless.org/ubase
 	ignore = all
+[submodule "sinit"]
+	path = pkg/sinit/repo
+	url = git://git.suckless.org/sinit
diff --git a/gen.sh b/gen.sh
@@ -33,6 +33,7 @@ subgen pkg/perp
 subgen pkg/probe
 subgen pkg/rc
 subgen pkg/sbase
+subgen pkg/sinit
 subgen pkg/ubase
 subgen pkg/util-linux
 subgen pkg/xz-embedded
diff --git a/pkg/sinit/config.h b/pkg/sinit/config.h
@@ -0,0 +1,5 @@
+/* See LICENSE file for copyright and license details. */
+
+static char *const rcinitcmd[]     = { PREFIX "/etc/rc.init", NULL };
+static char *const rcrebootcmd[]   = { PREFIX "/etc/rc.shutdown", "reboot", NULL };
+static char *const rcpoweroffcmd[] = { PREFIX "/etc/rc.shutdown", "poweroff", NULL };
diff --git a/pkg/sinit/gen.sh b/pkg/sinit/gen.sh
@@ -0,0 +1,17 @@
+fetch git
+
+cflags "
+    -std=c99
+    -D _POSIX_C_SOURCE=200809L
+    -D PREFIX='"\"'/$PREFIX'\""'
+    -I $dir
+    -Wno-unused-parameter
+"
+
+exe sinit sinit.c
+exe shutdown $dir/shutdown.c
+
+bin sinit
+sym sinit /bin/init
+man sinit.8
+bin shutdown
diff --git a/pkg/sinit/repo b/pkg/sinit/repo
@@ -0,0 +1 @@
+Subproject commit 28c44b6b94a870f2942c37f9cfbae8b770595712
diff --git a/pkg/sinit/shutdown.c b/pkg/sinit/shutdown.c
@@ -0,0 +1,87 @@
+/* See LICENSE file for copyright and license details. */
+#define _XOPEN_SOURCE 700
+#include <errno.h>
+#include <mntent.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdnoreturn.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/reboot.h>
+#include <unistd.h>
+
+static noreturn void
+usage(void)
+{
+	fprintf(stderr, "usage: shutdown [-hpr]\n");
+	exit(2);
+}
+
+int
+main(int argc, char *argv[])
+{
+	FILE *fp;
+	char **dirs = NULL;
+	size_t n = 0;
+	struct mntent *mnt;
+	int cmd = RB_POWER_OFF;
+
+	while (*++argv && (*argv)[0] == '-' && (*argv)[1]) {
+		switch ((*argv)[1]) {
+		case 'h':
+			cmd = RB_HALT_SYSTEM;
+			break;
+		case 'p':
+			cmd = RB_POWER_OFF;
+			break;
+		case 'r':
+			cmd = RB_AUTOBOOT;
+			break;
+		default:
+			usage();
+		}
+	}
+	if (*argv)
+		usage();
+
+	if (getsid(0) != getpid()) {
+		fprintf(stderr, "must be session leader\n");
+		return 1;
+	}
+
+	sync();
+	kill(-1, SIGTERM);
+	sleep(2);
+	kill(-1, SIGKILL);
+
+	sync();
+	fp = setmntent("/proc/mounts", "r");
+	if (!fp) {
+		perror("setmntent");
+		goto reboot;
+	}
+	while ((mnt = getmntent(fp))) {
+		if (!(dirs = realloc(dirs, ++n * sizeof(*dirs)))) {
+			perror("realloc");
+			break;
+		}
+		if (!(dirs[n - 1] = strdup(mnt->mnt_dir))) {
+			perror("strdup");
+			break;
+		}
+	}
+	endmntent(fp);
+	while (n) {
+		if (umount(dirs[--n]) < 0)
+			fprintf(stderr, "umount %s: %s\n", dirs[n], strerror(errno));
+		free(dirs[n]);
+	}
+	free(dirs);
+
+reboot:
+	if (reboot(cmd) < 0) {
+		perror("reboot");
+		return 1;
+	}
+}