netbsd fsck driver import

. fsck driver parses /etc/fstab and invokes sub-fscks
	. further simplifies fs handling in rc

lib/nbsd_libc/sys-minix/Makefile.inc

@@ -16,7 +16,7 @@ SRCS+= 	accept.c access.c bind.c brk.c sbrk.c m_closefrom.c getsid.c \
 	vectorio.c shutdown.c sigaction.c sigpending.c sigreturn.c sigsuspend.c\
 	sigprocmask.c socket.c socketpair.c stat.c statvfs.c symlink.c \
 	sync.c syscall.c sysuname.c truncate.c umask.c unlink.c write.c \
-	_exit.c _ucontext.c environ.c __getcwd.c vfork.c
+	_exit.c _ucontext.c environ.c __getcwd.c vfork.c sizeup.c
 
 # Minix specific syscalls.
 SRCS+= cprofile.c lseek64.c sprofile.c _mcontext.c

lib/nbsd_libc/sys-minix/sizeup.c

@@ -0,0 +1,52 @@
+#include <sys/cdefs.h>
+#include "namespace.h"
+#include <lib.h>
+#include <minix/u64.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <minix/config.h>
+#include <minix/const.h>
+#include <minix/type.h>
+#include <minix/minlib.h>
+#include <minix/partition.h>
+#include <sys/ioc_disk.h>
+
+#include <unistd.h>
+
+/*================================================================
+ *                    minix_sizeup  -  determine device size
+ *===============================================================*/
+int minix_sizeup(device, bytes)
+char *device;
+u64_t *bytes;
+{
+  int fd;
+  struct partition entry;
+  struct stat st;
+
+  if ((fd = open(device, O_RDONLY)) == -1) {
+        if (errno != ENOENT)
+                perror("sizeup open");
+        return -1;
+  }
+  if (ioctl(fd, DIOCGETP, &entry) == -1) {
+        perror("sizeup ioctl");
+        if(fstat(fd, &st) < 0) {
+                perror("fstat");
+                entry.size = cvu64(0);
+        } else {
+                entry.size = cvu64(st.st_size);
+        }
+  }
+  close(fd);
+  *bytes = entry.size;
+  return 0;
+}