4suite: move to shinobi

13 files changed, 167 insertions, 34 deletions

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..4097bc5
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,5 @@
+BasedOnStyle: LLVM
+Language: Cpp
+IndentWidth: 4
+TabWidth: 4
+UseTab: Always
diff --git a/.gitignore b/.gitignore
index 5761abc..d39616b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 *.o
+*.ninja_log
diff --git a/4init/4init.c b/4init/4init.c
index 50807b6..14cfbba 100644
--- a/4init/4init.c
+++ b/4init/4init.c
@@ -8,14 +8,13 @@
 
 #include "config.h"
 
-static void reap(void)
-{
+static void reap(void) {
 	int status;
-	while (waitpid(-1, &status, WNOHANG) > 0) {}
+	while (waitpid(-1, &status, WNOHANG) > 0) {
+	}
 }
 
-int main(void)
-{
+int main(void) {
 	int sigfd = -1;
 	pid_t pid = -1;
 	sigset_t set;
diff --git a/4init/Makefile b/4init/Makefile
deleted file mode 100644
index e56e105..0000000
--- a/4init/Makefile
+++ /dev/null
@@ -1,21 +0,0 @@
-include config.mk
-
-BIN = 4init
-OBJ = 4init.o
-
-all: $(BIN)
-
-$(BIN): $(OBJ)
-	$(CC) $(LDFLAGS) -o $@ $(OBJ)
-
-$(OBJ): config.h
-
-install: all
-	mkdir -pv $(DESTDIR)$(PREFIX)/bin
-	cp -fv $(BIN) $(DESTDIR)$(PREFIX)/bin
-
-uninstall: all
-	rm -f $(DESTDIR)$(PREFIX)/bin/$(BIN)
-
-clean: all
-	rm -f 4init.o 4init
diff --git a/4init/build.ninja b/4init/build.ninja
new file mode 100644
index 0000000..41f1d7d
--- /dev/null
+++ b/4init/build.ninja
@@ -0,0 +1,41 @@
+# this file was generated from a makefile by shinobi
+build __shin_always_build__: phony
+
+build all: phony 4init
+
+rule r1
+  command = musl-gcc -s -static -o 4init 4init.o
+  generator = 1
+
+build 4init: r1 4init.o
+  description = build 4init
+
+rule r2
+  command = musl-gcc -std=c99 -Wextra -Wall -Os -fhardened -c 4init.c
+  generator = 1
+
+build 4init.o: r2 4init.c config.h
+  description = build 4init.o
+
+rule r3
+  command = sh -c 'mkdir -pv /usr/local/bin' && sh -c 'cp -fv 4init /usr/local/bin'
+  generator = 1
+
+build install: r3
+  description = build install
+
+rule r4
+  command = rm -f /usr/local/bin/4init
+  generator = 1
+
+build uninstall: r4
+  description = build uninstall
+
+rule r5
+  command = rm -f 4init.o 4init
+  generator = 1
+
+build clean: r5
+  description = build clean
+
+default all
diff --git a/4init/config.h b/4init/config.h
index 6c36ccf..3798447 100644
--- a/4init/config.h
+++ b/4init/config.h
@@ -3,15 +3,10 @@
 
 static const char *rc_path = "/usr/bin/4rc";
 
-static char *const rc_argv[] = {
-    "4rc",
-    NULL
-};
+static char *const rc_argv[] = {"4rc", NULL};
 
 static char *const rc_envp[] = {
-    "PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/sbin",
-    "TERM=linux",
-    NULL
-};
+	"PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/sbin", "TERM=linux",
+	NULL};
 
 #endif // CONFIG_H
diff --git a/4rc/4rc b/4rc/4rc
new file mode 100755
index 0000000..1df6d60
--- /dev/null
+++ b/4rc/4rc
diff --git a/4rc/4rc.c b/4rc/4rc.c
new file mode 100644
index 0000000..68a5d9f
--- /dev/null
+++ b/4rc/4rc.c
@@ -0,0 +1,56 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <stdio.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+void create_vfs(void) {
+	mkdir("/proc", 0755);
+	mkdir("/sys", 0755);
+	mkdir("/dev", 0755);
+	mkdir("/run", 0755);
+}
+
+void mount_vfs(void) {
+	if (mount("proc", "/proc", "proc",
+			  MS_NOSUID | MS_NODEV | MS_NOEXEC | MS_RELATIME, NULL) != 0) {
+		perror("mount /proc");
+	}
+
+	if (mount("sys", "/sys", "sysfs",
+			  MS_NOSUID | MS_NODEV | MS_NOEXEC | MS_RELATIME, NULL) != 0) {
+		perror("mount /sys");
+	}
+
+	if (mount("dev", "/dev", "devtmpfs", MS_NOSUID | MS_RELATIME, "mode=755") !=
+		0) {
+		perror("mount /dev");
+	}
+
+	if (mount("run", "/run", "tmpfs", MS_NOSUID | MS_NODEV | MS_RELATIME,
+			  "mode=755") != 0) {
+		perror("mount /run");
+	}
+
+	mkdir("/dev/pts", 0755);
+	mkdir("/dev/shm", 1777);
+
+	if (mount("devpts", "/dev/pts", "devpts",
+			  MS_NOSUID | MS_NOEXEC | MS_RELATIME, "gid=5,mode=620") != 0) {
+		perror("mount /dev/pts");
+	}
+
+	if (mount("shm", "/dev/shm", "tmpfs", MS_NOSUID | MS_NODEV | MS_RELATIME,
+			  "mode=1777") != 0) {
+		perror("mount /dev/shm");
+	}
+}
+
+int main(void) {
+	create_vfs();
+	mount_vfs();
+
+	return 0;
+}
diff --git a/4rc/README.md b/4rc/README.md
new file mode 100644
index 0000000..44fbde5
--- /dev/null
+++ b/4rc/README.md
@@ -0,0 +1,5 @@
+# 4init: minimal but functional init
+
+It's only purpose is to manage processes, it by defaults calls 4rc, but you can change that in `config.h`, it's started as PID 1, and if it crashes, the kernel will panic, read the article in Wikipedia if you want to know more.
+
+Inspired by [rofl0r](https://gist.github.com/rofl0r/6168719)'s minimal init.
\ No newline at end of file
diff --git a/4rc/build.ninja b/4rc/build.ninja
new file mode 100644
index 0000000..cce3f53
--- /dev/null
+++ b/4rc/build.ninja
@@ -0,0 +1,41 @@
+# this file was generated from a makefile by shinobi
+build __shin_always_build__: phony
+
+build all: phony 4rc
+
+rule r1
+  command = musl-gcc -s -static -o 4rc 4rc.o
+  generator = 1
+
+build 4rc: r1 4rc.o
+  description = build 4rc
+
+rule r2
+  command = musl-gcc  -std=c99 -Wextra -Wall -Os -fhardened -c -o 4rc.o 4rc.c
+  generator = 1
+
+build 4rc.o: r2 4rc.c config.h
+  description = build 4rc.o
+
+rule r3
+  command = sh -c 'mkdir -pv /usr/local/bin' && sh -c 'cp -fv 4rc /usr/local/bin'
+  generator = 1
+
+build install: r3
+  description = build install
+
+rule r4
+  command = rm -f /usr/local/bin/4rc
+  generator = 1
+
+build uninstall: r4
+  description = build uninstall
+
+rule r5
+  command = rm -f 4rc.o 4rc
+  generator = 1
+
+build clean: r5
+  description = build clean
+
+default all
diff --git a/4rc/config.h b/4rc/config.h
new file mode 100644
index 0000000..6b3aeb1
--- /dev/null
+++ b/4rc/config.h
@@ -0,0 +1,4 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#endif // CONFIG_H
diff --git a/4rc/config.mk b/4rc/config.mk
new file mode 100644
index 0000000..ab7e752
--- /dev/null
+++ b/4rc/config.mk
@@ -0,0 +1,5 @@
+PREFIX = /usr/local
+
+CC = musl-gcc
+CFLAGS = -std=c99 -Wextra -Wall -Os -fhardened
+LDFLAGS = -s -static
diff --git a/format.sh b/format.sh
new file mode 100755
index 0000000..44c1f0c
--- /dev/null
+++ b/format.sh
@@ -0,0 +1,2 @@
+#/bin/sh
+clang-format **/*.c **/*.h -i