From 51369c989cc490d96f6db7c3c3741f9793da1ae4 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sun, 12 Oct 2025 13:45:59 -0400
Subject: cmd: Add reboot command

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/cmd/Makefile        |  3 +++
 src/cmd/reboot/Makefile | 18 ++++++++++++++++++
 src/cmd/reboot/reboot.c | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+)
 create mode 100644 src/cmd/reboot/Makefile
 create mode 100644 src/cmd/reboot/reboot.c

diff --git a/src/cmd/Makefile b/src/cmd/Makefile
index 7c05606..d7906a9 100644
--- a/src/cmd/Makefile
+++ b/src/cmd/Makefile
@@ -10,8 +10,11 @@ all:
 		LIBC_DIR=$(shell pwd)/../$(LIBC_DIR)
 	cd hush/; make LDSCRIPT=$(LDSCRIPT) CC=$(CC) AS=$(AS) LD=$(LD) SYSROOT=$(SYSROOT) \
 		LIBC_DIR=$(shell pwd)/../$(LIBC_DIR)
+	cd reboot/; make LDSCRIPT=$(LDSCRIPT) CC=$(CC) AS=$(AS) LD=$(LD) SYSROOT=$(SYSROOT) \
+		LIBC_DIR=$(shell pwd)/../$(LIBC_DIR)
 
 .PHONY: clean
 clean:
 	cd init/; make clean
 	cd hush/; make clean
+	cd reboot/; make clean
diff --git a/src/cmd/reboot/Makefile b/src/cmd/reboot/Makefile
new file mode 100644
index 0000000..be5c21f
--- /dev/null
+++ b/src/cmd/reboot/Makefile
@@ -0,0 +1,18 @@
+include ../../data/build/user.mk
+
+CFILES = $(shell find . -name "*.c")
+CFILES = $(shell find . -name "*.c")
+CFLAGS = -L$(LIBC_DIR) -lc $(INTERNAL_CFLAGS) \
+		 -L../../lib/libwidget -lwidget -L../../lib/libc/ -lc \
+		 -I../../lib/libwidget/include/
+OBJECTS = $(CFILES:%.c=%.o)
+
+$(SYSROOT)/usr/bin/reboot: $(OBJECTS)
+	$(LD) $(OBJECTS) -o $@ $(CFLAGS)
+
+%.o: %.c
+	$(CC) $(INTERNAL_CFLAGS) -c $(CFLAGS) $< -o $@
+
+.PHONY: clean
+clean:
+	rm -f *.o *.d
diff --git a/src/cmd/reboot/reboot.c b/src/cmd/reboot/reboot.c
new file mode 100644
index 0000000..12584b0
--- /dev/null
+++ b/src/cmd/reboot/reboot.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025 Ian Marco Moffett and L5 engineers
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/reboot.h>
+#include <stdio.h>
+
+int
+main(void)
+{
+    reboot(RB_RESET);
+    return 0;   /* UNREACHABLE */
+}
-- 
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