bootstrap-initrd

commit: a0078c01ea1e474360c0f33ec4440cd02a6a5f36
parent 2718c9d1ec9bbdc7394b342372c1943162ba1967
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Sun, 23 Jun 2024 21:03:10 +0200

init.c: Create /dev/null

Diffstat:
M
init.c
8
++++++++

1 file changed, 8 insertions(+), 0 deletions(-)
diff --git a/init.c b/init.c
@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: MPL-2.0
 
 #define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700 // mknod
 
 #include "loksh_tcc.h"
 
@@ -75,6 +76,13 @@ main(int argc, char *argv[])
 	if(mount("devtmpfs", "/dev", "devtmpfs", MS_NOSUID | MS_NOEXEC, NULL) < 0)
 		fprintf(stderr, "Failed to mount /proc: %s\n", strerror(errno));
 
+	errno = 0;
+	if(mknod("/dev/null", S_IFCHR | 0666, makedev(0x1, 0x3)) < 0)
+	{
+		if(errno != 0 && errno != EEXIST)
+			fprintf(stderr, "Failed to create /dev/null: %s\n", strerror(errno));
+	}
+
 	// PS1 shouldn't be exported but '\h\$ ' is an *awful* default
 	// and oksh also doesn't sources ksh-specific files by default
 	setenv("PS1", "$? $PWD # ", 1);