diff options
Diffstat (limited to 'sysdeps/mach/hurd/xmknod.c')
| -rw-r--r-- | sysdeps/mach/hurd/xmknod.c | 86 |
1 files changed, 81 insertions, 5 deletions
diff --git a/sysdeps/mach/hurd/xmknod.c b/sysdeps/mach/hurd/xmknod.c index 5f40188fb6..2989215d9c 100644 --- a/sysdeps/mach/hurd/xmknod.c +++ b/sysdeps/mach/hurd/xmknod.c @@ -1,5 +1,4 @@ -/* Copyright (C) 1991,1992,1993,1994,1995,1996,1999,2002,2005,2006 - Free Software Foundation, Inc. +/* Copyright (C) 1991,92,93,94,95,96,99,2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -18,10 +17,13 @@ 02111-1307 USA. */ #include <errno.h> +#include <sys/stat.h> +#include <hurd.h> +#include <hurd/paths.h> #include <fcntl.h> -#include <stddef.h> +#include "stdio-common/_itoa.h" +#include <string.h> #include <sys/types.h> -#include <sys/stat.h> /* Create a device file named FILE_NAME, with permission and special bits MODE @@ -30,6 +32,80 @@ int __xmknod (int vers, const char *file_name, mode_t mode, dev_t *dev) { - return __xmknodat (vers, AT_FDCWD, file_name, mode, dev); + error_t err; + file_t dir, node; + char *name; + char buf[100], *bp; + const char *translator; + size_t len; + + if (vers != _MKNOD_VER) + return __hurd_fail (EINVAL); + + if (S_ISCHR (mode)) + { + translator = _HURD_CHRDEV; + len = sizeof (_HURD_CHRDEV); + } + else if (S_ISBLK (mode)) + { + translator = _HURD_BLKDEV; + len = sizeof (_HURD_BLKDEV); + } + else if (S_ISFIFO (mode)) + { + translator = _HURD_FIFO; + len = sizeof (_HURD_FIFO); + } + else + { + errno = EINVAL; + return -1; + } + + if (! S_ISFIFO (mode)) + { + /* We set the translator to "ifmt\0major\0minor\0", where IFMT + depends on the S_IFMT bits of our MODE argument, and MAJOR and + MINOR are ASCII decimal (octal or hex would do as well) + representations of our arguments. Thus the convention is that + CHRDEV and BLKDEV translators are invoked with two non-switch + arguments, giving the major and minor device numbers in %i format. */ + + bp = buf + sizeof (buf); + *--bp = '\0'; + bp = _itoa (minor (*dev), bp, 10, 0); + *--bp = '\0'; + bp = _itoa (major (*dev), bp, 10, 0); + memcpy (bp - len, translator, len); + translator = bp - len; + len = buf + sizeof (buf) - translator; + } + + dir = __file_name_split (file_name, &name); + if (dir == MACH_PORT_NULL) + return -1; + + /* Create a new, unlinked node in the target directory. */ + err = __dir_mkfile (dir, O_WRITE, (mode & ~S_IFMT) & ~_hurd_umask, &node); + + if (! err) + /* Set the node's translator to make it a device. */ + err = __file_set_translator (node, + FS_TRANS_EXCL | FS_TRANS_SET, + FS_TRANS_EXCL | FS_TRANS_SET, 0, + translator, len, + MACH_PORT_NULL, MACH_MSG_TYPE_COPY_SEND); + + if (! err) + /* Link the node, now a valid device, into the target directory. */ + err = __dir_link (dir, node, name, 1); + + __mach_port_deallocate (__mach_task_self (), dir); + __mach_port_deallocate (__mach_task_self (), node); + + if (err) + return __hurd_fail (err); + return 0; } libc_hidden_def (__xmknod) |