From 7a98e998c5cda484611d19854649ab8535f503d4 Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Tue, 14 Feb 2023 17:09:59 +0100
Subject: add simplet init system

---
 core/for.c     | 45 +++++++++++++++++++++++++++++++++++++++++++++
 core/init      |  5 -----
 core/mount.c   |  2 +-
 core/unmount.c | 12 ++++++++++++
 4 files changed, 58 insertions(+), 6 deletions(-)
 create mode 100644 core/for.c
 delete mode 100755 core/init
 create mode 100644 core/unmount.c

(limited to 'core')

diff --git a/core/for.c b/core/for.c
new file mode 100644
index 0000000..d576bf8
--- /dev/null
+++ b/core/for.c
@@ -0,0 +1,45 @@
+#include "../lib/exec/exec.h"
+#include "../lib/sys/fork.h"
+#include "../lib/sys/wait4.h"
+#include "../lib/io/io.h"
+#include "../lib/sys/types.h"
+#include "../lib/cstr/cstr.h"
+
+char line[BUFSIZ];
+
+
+void replace_args(char **argv, char *rep)
+{
+	for (; *argv; ++argv) {
+		if (cstr_compare(*argv, "%") == 0) {
+			*argv = rep;
+		}
+	}
+}
+
+
+int main(int argc, char **argv)
+{
+	if (argc <= 1) {
+		wff(STDERR_FD, "for command [args...] % [args...]")
+		return -1;
+	}
+
+	i64 size;
+	int pid;
+	
+	while ((size = get_next_line_from_fd(STDIN_FD, line)) >= 0) {
+
+		pid = fork();
+		if (pid == 0) {
+			replace_args(argv + 1, line);
+			exec((const char**)(argv + 1));
+			wff(STDERR_FD, "command not found: %s", argv[1]);
+			return -1;
+		} 
+
+		wait4(pid, 0, 0);
+	}
+
+	return 0;
+}
diff --git a/core/init b/core/init
deleted file mode 100755
index 5802b36..0000000
--- a/core/init
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/system/core/smash
-/system/core/clear
-/system/core/read /system/config/banner | /system/core/mdv 
-/system/core/env -f /system/config/env /system/core/smash
-/system/core/powerctl poweroff
diff --git a/core/mount.c b/core/mount.c
index a7a4527..3bbf52b 100644
--- a/core/mount.c
+++ b/core/mount.c
@@ -12,7 +12,7 @@ int main(int argc, char **argv)
 	int err;
 
 	if ((err = mount(argv[2], argv[3], argv[1], 0, 0))) {
-		wff(STDERR_FD, "error: %s", errstr[-err]);
+		wff(STDERR_FD, "error: %s\n", errstr[-err]);
 		return err;
 	}
 
diff --git a/core/unmount.c b/core/unmount.c
new file mode 100644
index 0000000..81103d9
--- /dev/null
+++ b/core/unmount.c
@@ -0,0 +1,12 @@
+#include "../lib/io/io.h"
+#include "../lib/sys/unmount.h"
+
+int main(int argc, char **argv)
+{
+	if (argc != 2) {
+		wff(STDERR_FD, "unmount <path>\n");
+		return -1;
+	}
+
+	return unmount(argv[1], 9);
+}
-- 
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