makefs - create a file system image from a directory tree.
It doesn't need any special privileges or kernel devices. Only ffs image creation is supported at this time, although makefs has been designed to allow the addition of other file system formats by writing new back-ends. This program was designed & implemented by Luke Mewburn of Wasabi Systems.
This commit is contained in:
lukem
parent
6d536163de
commit
de8b3ad2c7
21
usr.sbin/makefs/Makefile
Normal file
21
usr.sbin/makefs/Makefile
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@ -0,0 +1,21 @@
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# $NetBSD: Makefile,v 1.1.1.1 2001/10/26 06:56:13 lukem Exp $
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#
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PROG= makefs
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SRCS= makefs.c walk.c \
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ffs.c mkfs.c buf.c \
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misc.c spec.c pack_dev.c stat_flags.c \
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ffs_alloc.c ffs_balloc.c ffs_bswap.c ffs_subr.c ffs_tables.c ufs_bmap.c
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LDADD+=-lutil
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LSSRC= ${.CURDIR}/../../bin/ls
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MKNODSRC= ${.CURDIR}/../../sbin/mknod
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MTREESRC= ${.CURDIR}/../../usr.sbin/mtree
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CPPFLAGS+= -I${.CURDIR} -I${LSSRC} -I${MKNODSRC} -I${MTREESRC}
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.PATH: ${.CURDIR}/ffs ${.CURDIR}/../../sys/ufs/ffs \
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${LSSRC} ${MKNODSRC} ${MTREESRC}
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WARNS?= 2
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.include <bsd.prog.mk>
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111
usr.sbin/makefs/README
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111
usr.sbin/makefs/README
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$NetBSD: README,v 1.1.1.1 2001/10/26 06:50:48 lukem Exp $
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makefs - build a file system image from a directory tree
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NOTES:
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* This tool uses modified local copies of source found in other
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parts of the tree. This is intentional.
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* makefs is a work in progress, and subject to change.
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user overview:
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--------------
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makefs creates a file system image from a given directory tree.
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the following file system types can be built:
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ffs BSD fast file system
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Support for the following file systems maybe be added in the future
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ext2fs Linux EXT2 file system
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fat MS-DOS `FAT' file system (FAT12, FAT16, FAT32)
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cd9660 ISO 9660 file system
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Various file system independent parameters and contraints can be
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specified, such as:
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- minimum file system size (in KB)
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- maximum file system size (in KB)
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- free inodes
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- free blocks (in KB)
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- mtree(8) specification file containing permissions and ownership
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to use in image, overridding the settings in the directory tree
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- file containing list of files to specifically exclude or include
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- fnmatch(3) pattern of filenames to exclude or include
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- endianness of target file system
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File system specific parameters can be given as well, with a command
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line option such as "-o fsspeccific-options,comma-separated".
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For example, ffs would allow tuning of:
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- block & fragement size
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- cylinder groups
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- number of blocks per inode
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- minimum free space
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Other file systems might have controls on how to "munge" file names to
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fit within the constraints of the target file system.
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Exit codes:
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0 all ok
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1 fatal error
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2 some files couldn't be added during image creation
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(bad perms, missing file, etc). image will continue
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to be made
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Implementation overview:
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------------------------
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The implementation must allow for easy addition of extra file systems
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with minimal changes to the file system independent sections.
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The main program will:
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- parse the options, including calling fs-specific routines to
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validate fs-specific options
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- walk the tree, building up a data structure which represents
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the tree to stuff into the image. The structure will
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probably be a similar tree to what mtree(8) uses internally;
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a linked list of entries per directory with a child pointer
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to children of directories. ".." won't be stored in the list;
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the fs-specific tree walker should add this if required by the fs.
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this builder have the smarts to handle hard links correctly.
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- (optionally) Change the permissions in the tree according to
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the mtree(8) specfile
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- Call an fs-specific routine to build the image based on the
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data structures.
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Each fs-specific module should have the following external interfaces:
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parse_options parse the string for fs-specific options, feeding
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errors back to the user as appropriate
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make_fs take the data structures representing the
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directory tree and fs parameters,
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validate that the parameters are valid
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(e.g, the requested image will be large enough),
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create the image, and
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populate the image
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ffs implementation
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------------------
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In the ffs case, we can leverage off sbin/newfs/mkfs.c to actually build
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the image. When building and populating the image, the implementation
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can be greatly simplified if some assumptions are made:
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- the total required size (in blocks and inodes) is determined
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as part of the validation phase
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- a "file" (including a directory) has a known size, so
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support for growing a file is not necessary
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Two underlying primitives are provided:
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make_inode create an inode, returning the inode number
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write_file write file (from memory if DIR, file descriptor
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if FILE or SYMLINK), referencing given inode.
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it is smart enough to know if a short symlink
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can be stuffed into the inode, etc.
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When creating a directory, the directory entries in the previously
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built tree data structure is scanned and built in memory so it can
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be written entirely as a single write_file() operation.
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26
usr.sbin/makefs/TODO
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26
usr.sbin/makefs/TODO
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$NetBSD: TODO,v 1.1.1.1 2001/10/26 07:41:07 lukem Exp $
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todo:
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- finish makefs.8
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- testing
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- even more testing
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outstanding bugs:
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- size estimation is still out (need to take into account indirect blocks!)
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- mkfs.c parameter checking when density is rather high or low (dumps core)
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e.g, a large directory with a small number of files dumps core with a
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floating exception i.e, density is too high such as 21886635 or too
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low such as 30
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discuss:
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- consider replacing ffs_balloc() et al with own code that doesn't
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need hacked-up buf.c code
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257
usr.sbin/makefs/makefs.8
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257
usr.sbin/makefs/makefs.8
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.\" $NetBSD: makefs.8,v 1.1.1.1 2001/10/26 07:40:18 lukem Exp $
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.\"
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.\" Copyright 2001 Wasabi Systems, Inc.
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.\" All rights reserved.
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.\"
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.\" Written by Luke Mewburn for Wasabi Systems, Inc.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed for the NetBSD Project by
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.\" Wasabi Systems, Inc.
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.\" 4. The name of Wasabi Systems, Inc. may not be used to endorse
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.\" or promote products derived from this software without specific prior
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.\" written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd October 26, 2001
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.Dt MAKEFS 8
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.Os
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.Sh NAME
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.Nm makefs
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.Nd create a file system image from a directory tree
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.Sh SYNOPSIS
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.Nm ""
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.Bk -words
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.Op Fl t Ar fs-type
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.Ek
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.Bk -words
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.Op Fl o Ar fs-options
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.Ek
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.Bk -words
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.Op Fl d Ar debug-mask
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.Ek
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.Bk -words
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.Op Fl B Ar byte-order
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.Ek
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.Bk -words
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.Op Fl S Ar sector-size
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.Ek
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.Bk -words
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.Op Fl M Ar minimum-size
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.Ek
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.Bk -words
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.Op Fl m Ar maximum-size
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.Ek
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.Bk -words
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.Op Fl s Ar image-size
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.Ek
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.Bk -words
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.Op Fl b Ar free-blocks
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.Ek
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.Bk -words
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.Op Fl f Ar free-files
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.Ek
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.Bk -words
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.Op Fl F Ar specfile
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.Ek
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.Ar image-file
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.Ar directory
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.Sh DESCRIPTION
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The utility
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.Nm
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creates a file system image into
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.Ar image-file
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from the directory tree
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.Ar directory .
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No special devices or privileges are required to perform this task.
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.Pp
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The options are as follows:
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.Bl -tag -width flag
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.It Fl t Ar fs-type
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Create an
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.Ar fs-type
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file system image.
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The following file system types are supported:
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.Bl -tag -width ffs -offset indent
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.It Sy ffs
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BSD fast file system (default).
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.El
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.It Fl o Ar fs-options
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Set file system specific options.
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.Ar fs-options
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is a comma separated list of options.
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Valid file system specific options are detailed below.
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.It Fl d Ar debug-mask
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Enable various levels of debugging, depending upon which bits are set
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in
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.Ar debug-mask .
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XXX: document these
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.It Fl B Ar byte-order
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Set the byte order of the image to
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.Ar byte-order .
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Valid byte orders are
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.Ql big
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or
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.Ql be
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for big endian, and
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.Ql little
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or
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.Ql le
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for little endian.
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Some file systems may have a fixed byte order; in those cases this
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argument will be ignored.
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.It Fl S Ar sector-size
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Set the file system sector size to
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.Ar sector-size .
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Defaults to 512.
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.It Fl M Ar minimum-size
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Set the minimum size of the file system image to
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.Ar minimum-size .
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.It Fl m Ar maximum-size
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Set the maximum size of the file system image to
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.Ar maximum-size .
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An error will be raised if the target file system needs to be larger
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than this to accomodate the provided directory tree.
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.It Fl s Ar image-size
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Set the size of the file system image to
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.Ar image-size .
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.It Fl b Ar free-blocks
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Ensure that a minimum of
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.Ar free-blocks
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free blocks exist in the image.
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An optional
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.Ql %
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suffix may be provided to indicate that
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.Ar free-blocks
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indicates a percentage of the calculated image size
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.It Fl f Ar free-files
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Ensure that a minimum of
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.Ar free-files
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free files (inodes) exist in the image.
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An optional
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.Ql %
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suffix may be provided to indicate that
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.Ar free-blocks
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indicates a percentage of the calculated image size
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.It Fl F Ar specfile
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Use
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.Ar specfile
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as an
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.Xr mtree 8
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.Sq specfile
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specification.
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.Pp
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If a specfile entry exists in the underlying file system, its permissions and
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modification time will be used unless specifically overridden by the specfile.
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An error will be raised if the type of entry in the specfile conflicts
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with that of an existing entry.
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.Pp
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Otherwise, it is necessary to specify at least the following parameters
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in the specfile:
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.Sy type ,
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.Sy mode ,
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.Sy gname
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or
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.Sy gid ,
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and
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.Sy uname
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or
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.Sy uid ,
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.Sy device
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(in the case of block or character devices), and
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.Sy link
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(in the case of symbolic links).
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If
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.Sy time
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isn't provided, the current time will be used.
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If
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.Sy flags
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isn't provided, the current file flags will be used.
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.El
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.Pp
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An optional suffix may be provided for numeric size arguments,
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which changes the intrepretation of the argument as follows:
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.Bl -tag -width 3n -offset indent -compact
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.It b
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Causes no modification. (Default; optional)
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.It k
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Kilo; multiply the argument by 1024
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.It m
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Mega; multiply the argument by 1048576
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.It g
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Giga; multiply the argument by 1073741824
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.El
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.\"
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.\"
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.Ss FFS-specific options
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.Pp
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.Sy ffs
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images have ffs-specific optional parameters that may be provided.
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Each of the options consists of a keyword, an equals sign
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.Pq Ql = ,
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and a value.
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The following keywords are supported:
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.Pp
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.Bl -tag -width optimization -offset indent -compact
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.It Sy avgfilesize
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Expected average file size
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.It Sy avgfpdir
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Expected number of files per directory
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.It Sy bsize
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Block size
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.It Sy cpg
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Cylinders per group
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.It Sy density
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Bytes per inode
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.It Sy fsize
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Fragment size
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||||
.It Sy maxbpg
|
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Maximum blocks per cylinder group
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.It Sy minfree
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Minimum % free
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.It Sy nsectors
|
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Number of sectors
|
||||
.It Sy ntracks
|
||||
Number of tracks
|
||||
.It Sy optimization
|
||||
Optimization preference; one of
|
||||
.Ql space
|
||||
or
|
||||
.Ql time .
|
||||
.It Sy rotdelay
|
||||
Rotational delay
|
||||
.It Sy rpm
|
||||
Revolutions per minute
|
||||
.It Sy nrpos
|
||||
Number of rotational positions
|
||||
.El
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||||
.Sh SEE ALSO
|
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.Xr mtree 8 ,
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.Xr newfs 8
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.Sh AUTHOR
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Luke Mewburn <lukem@netbsd.org>
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.Sh HISTORY
|
||||
The
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.Nm
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||||
utility appeared in
|
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.Nx 1.6 .
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329
usr.sbin/makefs/makefs.c
Normal file
329
usr.sbin/makefs/makefs.c
Normal file
@ -0,0 +1,329 @@
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/* $NetBSD: makefs.c,v 1.1.1.1 2001/10/26 06:59:02 lukem Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright 2001 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Written by Luke Mewburn for Wasabi Systems, Inc.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed for the NetBSD Project by
|
||||
* Wasabi Systems, Inc.
|
||||
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <ctype.h>
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "makefs.h"
|
||||
|
||||
|
||||
/*
|
||||
* list of supported file systems and dispatch functions
|
||||
*/
|
||||
typedef struct {
|
||||
const char *type;
|
||||
int (*parse_options)(const char *, fsinfo_t *);
|
||||
void (*make_fs)(const char *, const char *, fsnode *,
|
||||
fsinfo_t *);
|
||||
} fstype_t;
|
||||
|
||||
static fstype_t fstypes[] = {
|
||||
{ "ffs", ffs_parse_opts, ffs_makefs },
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
int debug;
|
||||
struct timespec start_time;
|
||||
|
||||
|
||||
static fstype_t *get_fstype(const char *);
|
||||
static long long strsuftoll(const char *, const char *, long long, long long);
|
||||
static void usage(void);
|
||||
int main(int, char *[]);
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
struct timeval start;
|
||||
fstype_t *fstype;
|
||||
fsinfo_t fsoptions;
|
||||
fsnode *root;
|
||||
int ch, len;
|
||||
char *specfile;
|
||||
|
||||
debug = 0;
|
||||
if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
|
||||
errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
|
||||
(void)memset(&fsoptions, 0, sizeof(fsoptions));
|
||||
fsoptions.fd = -1;
|
||||
specfile = NULL;
|
||||
if (gettimeofday(&start, NULL) == -1)
|
||||
err(1, "Unable to get system time");
|
||||
TIMEVAL_TO_TIMESPEC(&start, &start_time);
|
||||
|
||||
while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:o:s:S:t:")) != -1) {
|
||||
switch (ch) {
|
||||
|
||||
case 'B':
|
||||
if (strcmp(optarg, "be") == 0 ||
|
||||
strcmp(optarg, "big") == 0) {
|
||||
#if BYTE_ORDER == LITTLE_ENDIAN
|
||||
fsoptions.needswap = 1;
|
||||
#endif
|
||||
} else if (strcmp(optarg, "le") == 0 ||
|
||||
strcmp(optarg, "little") == 0) {
|
||||
#if BYTE_ORDER == BIG_ENDIAN
|
||||
fsoptions.needswap = 1;
|
||||
#endif
|
||||
} else {
|
||||
warnx("Invalid endian `%s'.", optarg);
|
||||
usage();
|
||||
}
|
||||
break;
|
||||
|
||||
case 'b':
|
||||
len = strlen(optarg) - 1;
|
||||
if (optarg[len] == '%') {
|
||||
optarg[len] = '\0';
|
||||
fsoptions.freeblockpc =
|
||||
strsuftoll("free block percentage",
|
||||
optarg, 0, LLONG_MAX);
|
||||
} else {
|
||||
fsoptions.freeblocks = strsuftoll("free blocks",
|
||||
optarg, 0, LLONG_MAX);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'd':
|
||||
debug = (int)strsuftoll("debug mask", optarg,
|
||||
0, LLONG_MAX);
|
||||
break;
|
||||
|
||||
case 'f':
|
||||
len = strlen(optarg) - 1;
|
||||
if (optarg[len] == '%') {
|
||||
optarg[len] = '\0';
|
||||
fsoptions.freefilepc =
|
||||
strsuftoll("free file percentage",
|
||||
optarg, 0, LLONG_MAX);
|
||||
} else {
|
||||
fsoptions.freefiles = strsuftoll("free files",
|
||||
optarg, 0, LLONG_MAX);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'F':
|
||||
specfile = optarg;
|
||||
break;
|
||||
|
||||
case 'M':
|
||||
fsoptions.minsize = strsuftoll("minimum size",
|
||||
optarg, 1LL, LLONG_MAX);
|
||||
break;
|
||||
|
||||
case 'm':
|
||||
fsoptions.maxsize = strsuftoll("maximum size",
|
||||
optarg, 1LL, LLONG_MAX);
|
||||
break;
|
||||
|
||||
case 'o':
|
||||
{
|
||||
char *p;
|
||||
|
||||
while ((p = strsep(&optarg, ",")) != NULL) {
|
||||
if (*p == '\0')
|
||||
errx(1, "Empty option");
|
||||
if (! fstype->parse_options(p, &fsoptions))
|
||||
usage();
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case 's':
|
||||
fsoptions.minsize = fsoptions.maxsize =
|
||||
strsuftoll("size", optarg, 1LL, LLONG_MAX);
|
||||
break;
|
||||
|
||||
case 'S':
|
||||
fsoptions.sectorsize = strsuftoll("sector size",
|
||||
optarg, 1LL, LLONG_MAX);
|
||||
break;
|
||||
|
||||
case 't':
|
||||
if ((fstype = get_fstype(optarg)) == NULL)
|
||||
errx(1, "Unknown fs type `%s'.", optarg);
|
||||
break;
|
||||
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
/* NOTREACHED */
|
||||
|
||||
}
|
||||
}
|
||||
if (debug) {
|
||||
printf("debug mask: 0x%08x\n", debug);
|
||||
printf("start time: %ld.%ld, %s",
|
||||
start_time.tv_sec, start_time.tv_nsec,
|
||||
ctime(&start_time.tv_sec));
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (argc != 2)
|
||||
usage();
|
||||
|
||||
/* walk the tree */
|
||||
TIMER_START(start);
|
||||
root = walk_dir(argv[1], NULL);
|
||||
TIMER_RESULTS(start, "walk_dir");
|
||||
|
||||
if (specfile) { /* apply a specfile */
|
||||
TIMER_START(start);
|
||||
apply_specfile(specfile, argv[1], root);
|
||||
TIMER_RESULTS(start, "apply_specfile");
|
||||
}
|
||||
|
||||
if (debug & DEBUG_DUMP_FSNODES) {
|
||||
putchar('\n');
|
||||
dump_fsnodes(argv[1], root);
|
||||
putchar('\n');
|
||||
}
|
||||
|
||||
/* build the file system */
|
||||
TIMER_START(start);
|
||||
fstype->make_fs(argv[0], argv[1], root, &fsoptions);
|
||||
TIMER_RESULTS(start, "make_fs");
|
||||
|
||||
exit(0);
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
set_option(option_t *options, const char *var, const char *val)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; options[i].name != NULL; i++) {
|
||||
if (strcmp(options[i].name, var) != 0)
|
||||
continue;
|
||||
*options[i].value = (int)strsuftoll(options[i].desc, val,
|
||||
options[i].minimum, options[i].maximum);
|
||||
return (1);
|
||||
}
|
||||
warnx("Unknown option `%s'", var);
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
static fstype_t *
|
||||
get_fstype(const char *type)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; fstypes[i].type != NULL; i++)
|
||||
if (strcmp(fstypes[i].type, type) == 0)
|
||||
return (&fstypes[i]);
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
|
||||
static long long
|
||||
strsuftoll(const char *desc, const char *arg, long long min, long long max)
|
||||
{
|
||||
long long result;
|
||||
char *ep;
|
||||
|
||||
assert(desc != NULL);
|
||||
assert(arg != NULL);
|
||||
|
||||
errno = 0;
|
||||
result = strtoll(arg, &ep, 0);
|
||||
if ((result == LLONG_MIN || result == LLONG_MAX) && errno == ERANGE) {
|
||||
warn("%s `%s'", desc, arg);
|
||||
usage();
|
||||
}
|
||||
if (ep[0] != '\0' && ep[1] != '\0') {
|
||||
warnx("`%s' is not a valid number for %s.", optarg, desc);
|
||||
usage();
|
||||
}
|
||||
switch (tolower((unsigned char)ep[0])) {
|
||||
case '\0':
|
||||
case 'b':
|
||||
break;
|
||||
case 'k':
|
||||
result <<= 10;
|
||||
break;
|
||||
case 'm':
|
||||
result <<= 20;
|
||||
break;
|
||||
case 'g':
|
||||
result <<= 30;
|
||||
break;
|
||||
default:
|
||||
warnx("`%s' is not a valid suffix for %s.", ep, desc);
|
||||
usage();
|
||||
}
|
||||
|
||||
if (result < min) {
|
||||
warnx("%s `%s' (%lld) is less than %lld.",
|
||||
desc, optarg, result, min);
|
||||
usage();
|
||||
}
|
||||
if (result > max) {
|
||||
warnx("%s `%s' (%lld) is greater than %lld.",
|
||||
desc, optarg, result, max);
|
||||
usage();
|
||||
}
|
||||
if (debug & DEBUG_STRSUFTOLL)
|
||||
printf("strsuftoll: got %lld for %s %s\n",
|
||||
result, desc, arg);
|
||||
return (result);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
usage(void)
|
||||
{
|
||||
const char *prog;
|
||||
|
||||
prog = getprogname();
|
||||
fprintf(stderr,
|
||||
"Usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
|
||||
"\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
|
||||
"\t[-b free-blocks] [-f free-files] [-F mtree-specfile]\n"
|
||||
"\timage-file directory\n",
|
||||
prog);
|
||||
exit(1);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user