hbase

heirloom base
git clone git://git.2f30.org/hbase.git
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commit a9c833353fb9c4350636b7476269e5dcb437c147
parent 7b91f7051126bfa3648b2b6a2ba3c251f75686b4
Author: sin <sin@2f30.org>
Date:   Wed May 21 12:25:50 +0100

Remove tar

Diffstat:
tar/NOTES | 61-------------------------------------------------------------
tar/mkfile | 9---------
tar/tar.1 | 481-------------------------------------------------------------------------------
tar/tar.c | 3216-------------------------------------------------------------------------------
tar/tar.dfl | 9---------
5 files changed, 0 insertions(+), 3776 deletions(-)
diff --git a/tar/NOTES b/tar/NOTES @@ -1,61 +0,0 @@ -Notes for the tar utility -========================= - -- tar is able to extract many GNU tar format archives; notably, large file - sizes, user and group ids, and long file and link names are supported. - Multivolume archives, sparse files, and incremental backups are not - supported. Thus for extraction for GNU tar archives, this tar behaves - identically to our cpio (and can extract GNU tar format archives written - by cpio). - - tar is also able to update GNU tar format archives so that GNU tar can - read them, but it does not use any of the GNU extensions then; thus file - names are limited to 99 characters. It currently does not allow the - creation of new GNU tar format archives; use cpio if you want to do - that. - -- The multivolume format is identically to that in cpio (both our and SVr4 - derived implementations) and incompatible to that in System V tar. Besides - the obvious advantage of interoperability, the format can be easily read - with standard Unix tools if no special support in tar or cpio is available - on foreign platforms (see the manual page). A disadvantage is that no - volume numbers are stored on the media, the user has to ensure the - correct order of parts himself. - -- Although the archives written by tar are intended to be compatible with - the tar format given in IEEE Std. 1003.1, 1996 (POSIX.1), extraction of - archives is not compliant with this standard since we use the numerical - uid and gid fields instead of the symbolic uname and gname fields when - restoring ownership of files. This is done because use of the symbolic - fields can easily lead to conflicts if the numerical user id of a user - that has no local name stored in the archive is identical to the local - numeric user id of a user whose symbolic name is mapped to a different - uid than that stored in the archive, e. g. - - name on tape uid on tape local name local uid result - foo 100 foo 101 101 - bar 101 (none) (none) 101 - - Use of the numeric fields avoids such clashes, at least if extraction - takes place in an empty directory, and allows mapping of user ids using - the 'find' and 'chown' utilities after extraction. - - In the wording of the standard, this is not 'a privileged, protection- - preserving version of the utility' (10.1.1, p. 235, l. 202-203). - -- Extraction does not conform to the tar(XCU) specification (LEGACY) in - The Single UNIX Specification, Version 2, The Open Group 1997, since - the 'x' key described there demands extraction with the same modes as - on the tape if the files are newly created, which is not done by this - implementation (as well as by any traditional Unix implementation - known to me) unless the 'p' key is also given. The modes of existing - files are also not preserved since such files are always removed before - extraction of the corresponding archived file by this implementation. - - This conflict between standard and implementations actually existed - already with the System V Interface Definition, Third and Fourth - Editions, tar(AU_CMD), which demand the same behavior as SUSv2; it - seems that no System V implementation has ever fulfilled USL's own - specification for tar. - - Gunnar Ritter 9/22/03 diff --git a/tar/mkfile b/tar/mkfile @@ -1,9 +0,0 @@ -BIN = tar -OBJ = tar.o -LOCAL_CFLAGS = -DTARDFL=\"$DFLDIR/tar\" -DSHELL=\"$SHELL\" -DSV3BIN=\"$BINDIR\" -DDEFBIN=\"$BINDIR\" -INSTALL_BIN = tar -INSTALL_MAN1 = tar.1 -INSTALL_DFL = tar.dfl -DEPS = libcommon - -<$mkbuild/mk.default diff --git a/tar/tar.1 b/tar/tar.1 @@ -1,481 +0,0 @@ -.\" -.\" Derived from tar(1), Unix 32V: -.\" Copyright(C) Caldera International Inc. 2001-2002. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" Redistributions of source code and documentation must retain the -.\" above copyright notice, this list of conditions and the following -.\" disclaimer. -.\" 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. -.\" All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed or owned by Caldera -.\" International, Inc. -.\" Neither the name of Caldera International, Inc. nor the names of -.\" other contributors may be used to endorse or promote products -.\" derived from this software without specific prior written permission. -.\" -.\" USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA -.\" INTERNATIONAL, INC. AND CONTRIBUTORS ``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 CALDERA INTERNATIONAL, 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. -.\" -.\" Sccsid @(#)tar.1 1.46 (gritter) 3/1/05 -.TH TAR 1 "3/1/05" "Heirloom Toolchest" "User Commands" -.SH NAME -tar \- tape archiver -.SH SYNOPSIS -\fBtar\fR [\ \fIkey\fR\ ] [\ \fIfiles\fR\ ] -.SH DESCRIPTION -.I Tar -saves and restores files -on magtape or other media. -Its actions are controlled by the -.I key -argument. -The -.I key -is a string of characters containing -at most one function letter and possibly -one or more function modifiers. -Other arguments to the command are file or directory -names specifying which files are to be dumped or restored. -In all cases, appearance of a directory name refers to -the files and (recursively) subdirectories of that directory. -.PP -The function portion of -the key is specified by one of the following letters; -use of the leading hyphen is optional: -.TP 8 -.B \-r -The named files -are written -on the end of the tape. -The -.B \-c -function implies this. -.TP 8 -.B \-x -The named files are extracted from the tape. -If the named file matches a directory whose contents -had been written onto the tape, this directory is (recursively) extracted. -The owner and mode are restored (if possible). -If no file argument is given, the entire content of the -tape is extracted. -Note that if multiple entries specifying the same file -are on the tape, the last one overwrites -all earlier. -Existing target files are removed -before the file in the archive is extracted. -.TP 8 -.B \-t -The names of the specified files are listed each time they occur -on the tape. -If no file argument is given, -all of the names on the tape are listed. -.TP 8 -.B \-u -The named files are added to the tape if either they -are not already there or have -been modified since last put on the tape. -.TP 8 -.B \-c -Create a new tape; writing begins on the beginning -of the tape instead of after the last file. -This command implies -.B \-r. -.PP -The following characters may be used in addition to the letter -which selects the function desired. -.TP 10 -.BI 0 \&...\& 9 -This -modifier selects the drive on which the tape (or other media) is mounted. -Each number selects an `archive\fIN\fR=' entry in -.IR /etc/default/tar , -which is followed by up to four fields: -device name, -blocking factor, -size in kilobytes, -and tape flag (`n' or `N' for no tape). -The entry `archive=' is the default -if neither this modifier nor the -.B f -key is given -and the -.I TAPE -environment variable is not present. -The following example sets up a tape, -a 1.44 MB floppy drive -for use with `0', using a blocking factor of 18, -and a 1.2 MB floppy drive for use with `1', -using a blocking factor of 15: -.sp - archive=/dev/rmt/c0s0 20 0 -.br - archive0=/dev/dsk/f03ht 18 1440 N -.br - archive1=/dev/dsk/f15ht 15 1200 N -.TP 10 -.B v -Normally -.I tar -does its work silently. -The -.B v -(verbose) -option causes it to type the name of each file it treats -preceded by the function letter. -With the -.B t -function, -.B v -gives more information about the -tape entries than just the name. -.TP 10 -.B w -causes -.I tar -to print the action to be taken followed by file name, then -wait for user confirmation. If a word beginning with `y' -is given, the action is performed. Any other input means -don't do it. -.TP 10 -.B f -causes -.I tar -to use the next argument as the name of the archive instead -of the default (see the description for the `0\&...\&9' key above). -If the name of the file is `\-', tar writes to -standard output or reads from standard input, whichever is -appropriate. Thus, -.I tar -can be used as the head or tail of a filter chain. -.I Tar -can also be used to move hierarchies with the command -.sp - cd fromdir; tar cf \- . | (cd todir; tar xfp \-) -.TP 10 -.B b -causes -.I tar -to use the next argument as the blocking factor for tape -records. The default is device dependent. -This option should only be used with raw magnetic tape archives (See -.B f -above). -.TP 10 -.B l -tells -.I tar -to complain if it cannot resolve all of the links -to the files dumped. If this is not specified, no -error messages are printed. -.TP 10 -.B o -causes -.I tar -to set the owner and group of restored files -to those of the invoking user -instead of those specified in the archive. -This is the default -unless the caller is the super-user. -.TP 10 -.B p -causes -.I tar -to set the permission bits of extracted files -exactly to those given in the archive; -normally, the current -.I umask -is applied. -.TP 10 -.B i -tells -.I tar -not to exit when a directory checksum error is encountered. -.TP 10 -.B e -tells -.I tar -to exit at several minor error conditions -that normally cause only a warning. -.TP 10 -.B n -tells -.I tar -that the input file is not a tape. -This causes block sizes to be -reported in kilobytes instead of tape blocks with the `v' modifier. -.TP 10 -.B m -causes -.I tar -not to restore modification times on extracted files; -the modification time is the time when the file was restored. -.TP 10 -.B h -causes -.I tar -to store the target of a symbolic link in the archive -and to follow symbolic links to directories -instead of storing the link itself. -.TP 10 -.B L -Same as -.BR h . -.TP 10 -.B A -causes -.I tar -to strip a leading `/' when storing and restoring pathnames, -i.\|e. to store and extract relative names instead of absolute ones. -.TP 10 -.B k -can be used to create and extract multi-volume archives. -The next unevaluated argument is used as the maximum size in kilobytes -for each part. -If the archive does not fit on one medium, -the user is prompted for the next. -The same sizes must be given for creation and extraction -of multi-volume archives. -.TP 10 -.B B -causes -.I tar -to repeat a -.IR read (2) -operation if it gets fewer data than expected. -This is useful when reading from pipes, network transports etc., -and is enabled per default if reading from standard input, -pipes, or sockets. -.TP 10 -.B F -specifies the name of a file with additional pathnames -in the next unevaluated argument. -Each line of this file must contain a pathname -(without any leading or trailing white-space) -that is put into the archive -before further files specified on the command line. -.TP 10 -.B X -specifies the name of a file -that contains pathnames to be excluded, -in the same format as with -.BR F . -This option may be specified multiple times, -causing pathnames contained in any of the files -to be excluded. -.PP -.I Tar -also accepts the following options -intermixed with the file -.IR names : -.TP 10 -\fB\-C\fI dir\fR -Change the working directory to -.I dir -before archiving the file -.I name -immediately following -.IR dir ; -.I name -is interpreted relative to -.IR dir . -.TP 10 -\fB\-I\fI file\fR -Specifies a file with additional pathnames -as described for the -.B F -key above, -inserted at the current position in the archive. -.PP -The archive format written by -.I tar -is expected to be compatible -with the `Extended tar Format' as defined in -IEEE Std. 1003.1, 1996, -although the numerical -.I uid -and -.I gid -fields are always used for extraction, -ignoring the symbolic -.I uname -and -.I gname -fields. -.PP -IEEE Std. 1003.1, 2001 -.I pax -format extended headers are created by -.I tar -under the following circumstances: -A path name exceeds 255 bytes -or does not contain a slash character at an appropriate position, -and does not contain non-UTF-8 characters; -the name of a linked file exceeds 100 bytes; -a file is larger than 8\ GB; -a user or group ID exceeds the number 2097151. -When updating GNU or old format archives, -no extended headers are created -and any path names are limited to 100 bytes. -Most GNU extensions are supported when reading archives, -and Sun extensions also for appending. -.PP -Multi-volume archives are splitted single-volume archives. -For an archive created with -.sp - tar cfk /dev/dsk/f03ht 1440 \fIinput\fR -.sp -it is thus possible to generate a single-volume archive by executing -.sp - dd if=/dev/dsk/f03ht bs=1k count=1440 >>singlevolume -.sp -once for each floppy disk. -.PP -On archives compressed with -.IR bzip2 (1), -.IR compress (1), -.IR gzip (1), -or -.IR xz (1), -the appropriate decompression program is run automatically -with the -.I t -and -.I x -keys. -.PP -The following keys are supported as extensions: -.TP 10 -.B z -causes -.I tar -to pipe its output through -.IR gzip (1) -when creating archives. -When reading archives, -this option is ignored. -.TP 10 -.B j -Similar to -.IR z , -but using -.IR bzip2 (1) -as compression program. -.TP 10 -.B J -Similar to -.IR z , -but using -.IR xz (1) -as compression program. -.TP 10 -.B Z -Similar to -.IR z , -but using -.IR compress (1) -as compression program. -.SH EXAMPLES -List the contents of a software distribution archive: -.in +2 -.sp -tar tvf distribution.tar.gz -.in -2 -.PP -Extract a software distribution archive, -preserving file permissions, -but setting the owner of all extracted files -to the invoking user -(even if invoked by -.IR root ): -.in +2 -.sp -tar xfop distribution.tar.gz -.in -2 -.PP -Write the current directory to the default archive location: -.in +2 -.sp -tar c . -.sp -.in -2 -If the default location is a floppy drive, -the archive is split across multiple volumes if necessary. -.PP -Create a -.IR gzip (1) -compressed archive of the directory -.I project -and its contents: -.in +2 -.sp -tar cf \- project | gzip \-c > project.tar.gz -.in -2 -.SH "ENVIRONMENT VARIABLES" -.TP 10 -.BR LANG ", " LC_ALL -See -.IR locale (7). -.TP 10 -.B LC_TIME -Used for the time string printed with when the keys -.B tv -are given. -.TP 10 -.B SYSV3 -If set, -old tar format archives are created with `c', -and the meaning of the `e' key is changed -such that archiving is aborted -if a file cannot fit on a single volume -of a multi-volume archive. -.TP 10 -.B TAPE -Used as default archive -if neither the `f' nor the `0\&...\&9' keys are present. -.SH FILES -/etc/default/tar -.br -/tmp/tar* -.SH "SEE ALSO" -cpio(1), -ls(1), -pax(1), -umask(2) -.SH DIAGNOSTICS -Complaints about bad key characters and tape read/write errors. -.PP -Complaints if enough memory is not available to hold -the link tables. -.SH NOTES -There is no way to ask for the -.IR n -th -occurrence of a file. -.PP -Tape errors are handled ungracefully. -.PP -The -.B u -option can be slow. -.PP -Use of the -.B r -and -.B u -options with tape devices requires -drives capable of writing between filemarks. diff --git a/tar/tar.c b/tar/tar.c @@ -1,3216 +0,0 @@ -/* - * Changes by Gunnar Ritter, Freiburg i. Br., Germany, March 2003. - */ -/* from Unix 32V /usr/src/cmd/tar.c */ -/* - * Copyright(C) Caldera International Inc. 2001-2002. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * Redistributions of source code and documentation must retain the - * above copyright notice, this list of conditions and the following - * disclaimer. - * 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. - * All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed or owned by Caldera - * International, Inc. - * Neither the name of Caldera International, Inc. nor the names of - * other contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA - * INTERNATIONAL, INC. AND CONTRIBUTORS ``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 CALDERA INTERNATIONAL, 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. - */ - -#if __GNUC__ >= 3 && __GNUC_MINOR__ >= 4 || __GNUC__ >= 4 -#define USED __attribute__ ((used)) -#elif defined __GNUC__ -#define USED __attribute__ ((unused)) -#else -#define USED -#endif -static const char sccsid[] USED = "@(#)tar.sl 1.180 (gritter) 10/9/10"; - -#include <sys/types.h> -#include <sys/stat.h> -#ifdef __linux__ -#include <linux/fd.h> -#if !defined (__UCLIBC__) && !defined (__dietlibc__) -#include <linux/fs.h> -#endif /* !__UCLIBC__, !__dietlibc__ */ -#undef WNOHANG -#undef WUNTRACED -#undef P_ALL -#undef P_PID -#undef P_PGID -#ifdef __dietlibc__ -#undef NR_OPEN -#undef PATH_MAX -#endif /* __dietlibc__ */ -#endif /* __linux__ */ -#include <sys/wait.h> -#include <fcntl.h> -#include <unistd.h> -#include <time.h> -#include <utime.h> -#include <stdio.h> -#include <dirent.h> -#include <signal.h> -#include "sigset.h" -#include <string.h> -#include <stdlib.h> -#include <malloc.h> -#include <libgen.h> -#include <errno.h> -#include <pwd.h> -#include <grp.h> -#include <inttypes.h> -#include <iblok.h> -#include <locale.h> -#include <alloca.h> - -#include <sys/ioctl.h> - -#if defined (__linux__) || defined (__sun) || defined (__FreeBSD__) || \ - defined (__hpux) || defined (_AIX) || defined (__NetBSD__) || \ - defined (__OpenBSD__) || defined (__DragonFly__) || defined (__APPLE__) -#ifndef __G__ -#include <sys/mtio.h> -#endif -#else /* SVR4.2MP */ -#include <sys/scsi.h> -#include <sys/st01.h> -#endif /* SVR4.2MP */ - -#ifdef _AIX -#include <sys/sysmacros.h> -#endif - -#if !defined (major) && !defined (__G__) -#include <sys/mkdev.h> -#endif /* !major */ - -#include <getdir.h> -#include <asciitype.h> -#include <atoll.h> -#include <memalign.h> - -#ifdef __GLIBC__ -#ifdef _IO_getc_unlocked -#undef getc -#define getc(f) _IO_getc_unlocked(f) -#endif -#ifdef _IO_putc_unlocked -#undef putc -#define putc(c, f) _IO_putc_unlocked(c, f) -#endif -#endif - -#if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || \ - defined (__DragonFly__) || defined (__APPLE__) -/* - * For whatever reason, FreeBSD casts the return values of major() and - * minor() to signed values so that normal limit comparisons will fail. - */ -static unsigned long -mymajor(long dev) -{ - return major(dev) & 0xFFFFFFFFUL; -} -#undef major -#define major(a) mymajor(a) -static unsigned long -myminor(long dev) -{ - return minor(dev) & 0xFFFFFFFFUL; -} -#undef minor -#define minor(a) myminor(a) -#endif /* __FreeBSD__, __NetBSD__, __OpenBSD__, __DragonFly__, __APPLE__ */ - -#define TBLOCK 512 -#define MAXBLF (SSIZE_MAX/TBLOCK) -static int NBLOCK = 20; -#define NAMSIZ 100 -#define PFXSIZ 155 -#define MAGSIZ 6 -#define TIMSIZ 12 -static union hblock { - char dummy[TBLOCK]; - struct header { - char name[NAMSIZ]; - char mode[8]; - char uid[8]; - char gid[8]; - char size[12]; - char mtime[TIMSIZ]; - char chksum[8]; - char linkflag; - char linkname[NAMSIZ]; - char magic[MAGSIZ]; - char version[2]; - char uname[32]; - char gname[32]; - char devmajor[8]; - char devminor[8]; - char prefix[PFXSIZ]; - } dbuf; -} dblock, *tbuf; - -static struct internal_header { - char *name; - long namesize; - char *rname; - char *linkname; - char *rlinkname; - long linksize; -} hbuf; - -static struct islot { - struct islot *left; /* left link */ - struct islot *right; /* right link */ - struct islot *nextp; /* ordered list link */ - ino_t inum; /* inode number */ - int count; /* count of links found */ - char *pathname;/* name of first link encountered */ -} *ihead; /* ordered list for report with 'l' */ -static struct islot *inull; /* splay tree null element */ - -struct dslot { - struct dslot *nextp; /* next device */ - struct islot *itree; /* inode slots */ - dev_t devnum; /* real device id */ -}; -static struct dslot *devices;/* devices list */ - -static enum paxrec { - PR_NONE = 0000, - PR_ATIME = 0001, - PR_GID = 0002, - PR_LINKPATH = 0004, - PR_MTIME = 0010, - PR_PATH = 0020, - PR_SIZE = 0040, - PR_UID = 0100, - PR_SUN_DEVMAJOR = 0200, - PR_SUN_DEVMINOR = 0400 -} paxrec, globrec; - -static struct stat globst; - -static int rflag, xflag, vflag, tflag, mt, cflag, mflag, nflag, kflag; -static int oflag, hflag, pflag, iflag, eflag, Aflag, Bflag, Eflag; -enum { - B_UNSPEC = 0, - B_AUTO = 1, - B_DEFN = 2, - B_USER = 3 -} bflag; -static int gnuflag = -1; -static int oldflag = -1; -static long long volsize; -static char *Fflag, *Xflag; -static int term, chksum, wflag, recno, first, linkerrok; -static int freemem = 1; -static int nblock = 1; -static struct stat mtstat; -static int tapeblock = -1; -static int writerror; - -static int workdir; - -static off_t low; -static off_t high; - -static FILE *tfile; - -static const char *usefile; - -struct magtape { - const char *device; - long block; - long long size; - int nflag; -}; - -static struct magtape magtapes[] = { - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 1, 0, 0 }, - { NULL, 0, 0, 0 } -}; - -static int hadtape; - -static int maybezip; - -static enum { - POSTORDER = 0, - PREORDER = 1 -} order; - -static char *progname; -extern int sysv3; - -static dev_t *vis_dev; -static ino_t *vis_ino; -static int vis_max; - -static long files; -static long gotcha; - -static int midfile; - -static uid_t myuid; -static gid_t mygid; - -static long long rdtotal; -static long long wrtotal; - -static int N = 300; - -static void usage(void); -static void ckusefile(void); -static void cktxru(int); -static void dorep(char *[]); -static void doarg(char *); -static int endtape(int); -static void tgetdir(struct stat *); -static void tgetnam(void); -static void tgetgnu(char **, long *); -static void tgetpax(struct stat *, long long *, long long *); -static enum paxrec tgetrec(char **, char **, char **); -static long long tgetval(const char *, int); -static void passtape(struct stat *); -static void putfile(const char *, const char *, int, int); -static void putreg(const char *, const char *, int, struct stat *); -static int putsym(const char *, const char *, char **, size_t); -static void wrhdr(const char *, const char *, struct stat *); -static void wrpax(const char *, const char *, struct stat *); -static void addrec(char **, long *, long *, - const char *, const char *, long long); -static void paxnam(struct header *, const char *); -static void doxtract(char *[]); -static int xtrreg(const char *, struct stat *); -static int xtrlink(const char *, struct stat *, int); -static int xtrdev(const char *, struct stat *, mode_t); -static int xtrdir(const char *, struct stat *); -static void dotable(char *[]); -static void putempty(void); -static void longt(register struct stat *, int); -static void pmode(register struct stat *, int); -static void tselect(int *, struct stat *); -static int checkdir(register char *, struct stat *); -static void onsig(int); -static void tomodes(const char *, register struct stat *); -static int checksum(int); -static int checkw(int, const char *, struct stat *, int); -static int response(void); -static int checkupdate(const char *, struct stat *); -static void done(int); -static int prefix(register const char *, register const char *); -static off_t lookup(const char *); -static off_t bsrch(const char *, int, off_t, off_t); -static int cmp(const char *, const char *, size_t); -static int readtape(char *); -static int writetape(const char *); -static void backtape(int); -static void flushtape(void); -static void *srealloc(void *, size_t); -static void *smalloc(size_t); -static void *scalloc(size_t, size_t); -static void *bfalloc(size_t); -static char *nameof(struct header *, char *); -static int mkname(struct header *, const char *); -static char *linkof(struct header *, char *); -static int mklink(struct header *, const char *, const char *); -static void blocksof(const char *, struct stat *, long long *, long long *); -static void tchown(int (*)(const char *, uid_t, gid_t), - const char *, uid_t, gid_t); -static void edone(int); -static ssize_t mtread(void *, size_t); -static ssize_t mtwrite(const void *, size_t); -static void newvolume(void); -static void goback(int); -static void getpath(const char *, char **, char **, size_t *, size_t *); -static void setpath(const char *, char **, char **, - size_t, size_t *, size_t *); -static void defaults(void); -static void settape(int); -static void suprmsg(void); -static void odirect(void); -static void domtstat(void); -static int checkzip(const char *, int); -static int redirect(const char *, const char *, int); -static const char *getuser(uid_t); -static const char *getgroup(gid_t); -static char *sstrdup(const char *); -static void fromfile(const char *); -static void readexcl(const char *); -static void creatfile(void); -static mode_t cmask(struct stat *, int); -static struct islot *isplay(ino_t, struct islot *); -static struct islot *ifind(ino_t, struct islot **); -static void iput(struct islot *, struct islot **); -static struct dslot *dfind(struct dslot **, dev_t); -static char *sequence(void); -static void docomp(const char *); -static int jflag, Jflag, zflag, Zflag; -static int utf8(const char *); -static void settmp(char *, size_t, const char *); - -int -main(int argc, char *argv[]) -{ - char *cp; - - progname = basename(argv[0]); - setlocale(LC_TIME, ""); - if (getenv("SYSV3") != NULL) - sysv3 = 2; - if (argc < 2) - usage(); - - if ((myuid = getuid()) != 0) - oflag = 1; - mygid = getgid(); - tfile = NULL; - inull = scalloc(1, sizeof *inull); - inull->left = inull->right = inull; - defaults(); - argv[argc] = 0; - argv++; - for (cp = *argv++; *cp; cp++) - switch(*cp) { - case 'f': - usefile = *argv++; - hadtape++; - break; - case 'c': - if (sysv3 > 1 && Eflag == 0) - oldflag = 1; - cflag++; - rflag++; - cktxru('r'); - break; - case 'X': - Xflag = *argv++; - if (Xflag == NULL) { - fprintf(stderr, "%s: exclude file must be " - "specified with 'X' option\n", - progname); - done(1); - } - creatfile(); - readexcl(Xflag); - break; - case 'u': - creatfile(); - /*FALLTHRU*/ - case 'r': - cktxru(*cp); - rflag++; - break; - case 'v': - vflag++; - break; - case 'w': - wflag++; - break; - case 'x': - cktxru(*cp); - xflag++; - break; - case 't': - cktxru(*cp); - tflag++; - break; - case 'm': - mflag++; - break; - case '-': - break; - case '0': - case '1': case '2': case '3': - case '4': case '5': case '6': - case '7': case '8': case '9': - settape(*cp); - hadtape++; - break; - case 'b': - bflag = B_USER; - if (*argv == NULL) - goto invblk; - nblock = atoi(*argv++); - if (nblock <= 0 || (long)nblock > MAXBLF) { - invblk: fprintf(stderr, - "%s: invalid blocksize. (Max %ld)\n", - progname, (long)MAXBLF); - done(1); - } - break; - case 'l': - linkerrok++; - break; - case 'o': - oflag++; - break; - case 'h': case 'L': - hflag++; - break; - case 'p': - pflag++; - break; - case 'i': - iflag++; - break; - case 'e': - eflag++; - break; - case 'A': - Aflag++; - break; - case 'E': - Eflag++; - oldflag = -1; - break; - case 'F': - Fflag = *argv++; - if (Fflag == NULL) { - fprintf(stderr, - "%s: F requires a file name.\n", - progname); - done(1); - } - break; - case 'k': - if (*argv == NULL || (volsize = atoll(*argv)) < 250) { - fprintf(stderr, "%s: sizes below %dk " - "not supported\n", progname, - 250); - done(1); - } - volsize *= 1024; - kflag = 1; - argv++; - /*FALLTHRU*/ - case 'n': - nflag = 2; - break; - case 'B': - Bflag = 1; - break; - case 'z': - zflag = 1; - jflag = 0; - Jflag = 0; - Zflag = 0; - break; - case 'j': - jflag = 1; - Jflag = 0; - zflag = 0; - Zflag = 0; - break; - case 'J': - Jflag = 1; - jflag = 0; - zflag = 0; - Zflag = 0; - break; - case 'Z': - Zflag = 1; - jflag = 0; - Jflag = 0; - zflag = 0; - break; - default: - fprintf(stderr, "%s: %c: unknown option\n", - progname, *cp & 0377); - usage(); - } - - if (hadtape == 0) { - if ((cp = getenv("TAPE")) != NULL) - usefile = sstrdup(cp); - else - settape(0); - } - /*if (Fflag && Xflag) { - fprintf(stderr, "%s: specify only one of X or F.\n", progname); - usage(); - } our implementation doesn't need to enforce this */ - if ((rflag || volsize) && (workdir = open(".", O_RDONLY)) < 0) { - fprintf(stderr, "%s: cannot open working directory\n", - progname); - done(1); - } - fcntl(workdir, F_SETFD, FD_CLOEXEC); - for (files = 0; argv[files]; files++); - if (rflag) { - if (cflag && tfile != NULL && Xflag == 0) { - usage(); - done(1); - } - if (argv[0] == NULL && Fflag == NULL) { - fprintf(stderr, "%s: Missing filenames\n", - progname); - done(1); - } - if (cflag == 0 && (jflag || Jflag || zflag || Zflag)) { - fprintf(stderr, "%s: can only create " - "compressed archives\n", - progname); - done(1); - } - ckusefile(); - if (strcmp(usefile, "-") == 0) { - if (cflag == 0) { - fprintf(stderr, "%s: can only create " - "standard output archives\n", - progname); - done(1); - } - mt = dup(1); - } - else if ((mt = open(usefile, O_RDWR)) < 0) { - if (cflag == 0 || (mt = creat(usefile, 0666)) < 0) { - fprintf(stderr, "%s: cannot open %s.\n", - progname, usefile); - done(1); - } - } - domtstat(); - if (jflag || Jflag || zflag || Zflag) - docomp(Jflag ? "xz" : jflag ? "bzip2" : Zflag ? "compress" : "gzip"); - dorep(argv); - } - else if (xflag) { - ckusefile(); - if (strcmp(usefile, "-") == 0) { - mt = dup(0); - Bflag = 1; - } else if ((mt = open(usefile, O_RDONLY)) < 0) { - fprintf(stderr, "%s: cannot open %s.\n", - progname, usefile); - done(1); - } - maybezip = 1; - domtstat(); - doxtract(argv); - } - else if (tflag) { - ckusefile(); - if (strcmp(usefile, "-") == 0) { - mt = dup(0); - Bflag = 1; - } else if ((mt = open(usefile, O_RDONLY)) < 0) { - fprintf(stderr, "%s: cannot open %s.\n", - progname, usefile); - done(1); - } - maybezip = 1; - domtstat(); - dotable(argv); - } - else - usage(); - done(0); - /*NOTREACHED*/ - return 0; -} - -static void -usage(void) -{ - fprintf(stderr, "Usage: %s -{txruc}[0-9vfbk[FX]hLiBelmnopwA] " - "[tapefile] [blocksize] [tapesize] [argfile] " - "[exclude-file] [-I include-file] files ...\n", - progname); - done(1); -} - -static void -ckusefile(void) -{ - if (usefile == NULL) { - fprintf(stderr, "%s: device argument required\n", progname); - done(1); - } -} - -static void -cktxru(int c) -{ - static int txruflag; - - if (c == 't' || c == 'x' || c == 'r' || c == 'u') { - if (txruflag) { - fprintf(stderr, "%s: specify only one of [txru].\n", - progname); - usage(); - } - txruflag = c; - } -} - -static void -dorep(char *argv[]) -{ - struct stat stbuf; - - if (!cflag || Xflag) { - if (!cflag) { - tgetdir(&stbuf); - do { - passtape(&stbuf); - tgetdir(&stbuf); - } while (!endtape(1)); - } - if (tfile != NULL) { - char tname[PATH_MAX+1]; - int tfd; - pid_t pid; - fflush(tfile); - rewind(tfile); - settmp(tname, sizeof tname, "%s/tarXXXXXX"); - if ((tfd = mkstemp(tname)) < 0) { - fprintf(stderr, "%s: cannot create temporary " - "file (%s)\n", progname, tname); - done(1); - } - unlink(tname); - fcntl(tfd, F_SETFD, FD_CLOEXEC); - switch (pid = fork()) { - case -1: - fprintf(stderr, "%s: cannot fork\n", progname); - done(1); - /*NOTREACHED*/ - case 0: - dup2(fileno(tfile), 0); - dup2(tfd, 1); - execl(SHELL, "sh", "-c", - "PATH=" SV3BIN ":" DEFBIN ":$PATH; " - "LC_ALL=C export LC_ALL; " - /* - * +2 sorts by file name first, for - * binary search. - * +0 sorts by key (X overrides u). - * +1nr sorts by modtime (newer files - * first). - */ - "sort +2 +0 -1 +1nr -2 | uniq -2", - NULL); - fprintf(stderr, "%s: cannot execute %s\n", - progname, SHELL); - _exit(0177); - } - while (waitpid(pid, NULL, 0) != pid); - fclose(tfile); - lseek(tfd, 0, SEEK_SET); - tfile = fdopen(tfd, "r"); - fstat(fileno(tfile), &stbuf); - high = stbuf.st_size; - } - } - - suprmsg(); - if (sigset(SIGHUP, SIG_IGN) != SIG_IGN) - sigset(SIGINT, onsig); - if (sigset(SIGHUP, SIG_IGN) != SIG_IGN) - sigset(SIGHUP, onsig); - if (sigset(SIGQUIT, SIG_IGN) != SIG_IGN) - sigset(SIGQUIT, onsig); -/* - if (sigset(SIGTERM, SIG_IGN) != SIG_IGN) - sigset(SIGTERM, onsig); -*/ - odirect(); - if (Fflag) - fromfile(Fflag); - while (*argv && !term) { - if (argv[0][0] == '-' && argv[0][1] == 'C' && - argv[0][2] == '\0' && argv[1]) { - if (chdir(argv[1]) < 0) - fprintf(stderr, "%s: can't change directories " - "to %s: %s\n", - progname, argv[0], - strerror(errno)); - argv += 2; - if (argv[0] == NULL) - break; - } - if (argv[0][0] == '-' && argv[0][1] == 'I' && - argv[0][2] == '\0') { - if (argv[1]) { - fromfile(argv[1]); - argv += 2; - } else { - fprintf(stderr, "%s: missing file name " - "for -I flag.\n", - progname); - done(1); - } - } else { - doarg(*argv++); - goback(workdir); - } - } - putempty(); - putempty(); - flushtape(); - if (linkerrok == 1) - for (; ihead != NULL; ihead = ihead->nextp) - if (ihead->count != 0) - fprintf(stderr, "Missing links to %s\n", - ihead->pathname); -} - -static void -doarg(char *arg) -{ - register char *cp, *cp2; - - cp2 = arg; - for (cp = arg; *cp; cp++) - if (*cp == '/') - cp2 = cp; - if (cp2 != arg) { - *cp2 = '\0'; - chdir(arg); - *cp2 = '/'; - cp2++; - } - putfile(arg, cp2, workdir, 0); -} - -static int -endtape(int rew) -{ - if (hbuf.name[0] == '\0') { - if (rew) - backtape(rew); - return(1); - } - else - return(0); -} - -static void -tgetdir(register struct stat *sp) -{ - long long lval1, lval2; - - readtape( (char *) &dblock); - if (dblock.dbuf.name[0] && gnuflag < 0) - if ((gnuflag=memcmp(dblock.dbuf.magic, "ustar \0", 8)==0)!=0) - Eflag = 0; - if (dblock.dbuf.name[0] && oldflag < 0) - if ((oldflag=memcmp(dblock.dbuf.magic, "ustar", 5)!=0)!=0) - Eflag = 0; - if (hbuf.name) - hbuf.name[0] = '\0'; - if (hbuf.linkname) - hbuf.linkname[0] = '\0'; - paxrec = globrec; - *sp = globst; - while (gnuflag==0 && oldflag==0 && (dblock.dbuf.linkflag == 'x' || - dblock.dbuf.linkflag == 'g' || - dblock.dbuf.linkflag == 'X' /* sun */)) - tgetpax(sp, &lval1, &lval2); - tgetnam(); - if (hbuf.name[0] == '\0') - return; - sp->st_mode = tgetval(dblock.dbuf.mode, sizeof dblock.dbuf.mode)&07777; - if ((paxrec & PR_UID) == 0) - sp->st_uid = tgetval(dblock.dbuf.uid, sizeof dblock.dbuf.uid); - if ((paxrec & PR_GID) == 0) - sp->st_gid = tgetval(dblock.dbuf.gid, sizeof dblock.dbuf.gid); - if ((paxrec & PR_SIZE) == 0) - sp->st_size = - tgetval(dblock.dbuf.size, sizeof dblock.dbuf.size); - if ((paxrec & PR_MTIME) == 0) - sp->st_mtime = - tgetval(dblock.dbuf.mtime, sizeof dblock.dbuf.mtime); - sscanf(dblock.dbuf.chksum, "%o", &chksum); - if (chksum != checksum(0) && chksum != checksum(1)) { - fprintf(stderr, "%s: directory checksum error\n", progname); - if (iflag == 0) - done(2); - } - if ((paxrec & PR_SUN_DEVMAJOR) == 0) - sscanf(dblock.dbuf.devmajor, "%llo", &lval1); - if ((paxrec & PR_SUN_DEVMINOR) == 0) - sscanf(dblock.dbuf.devminor, "%llo", &lval2); - sp->st_rdev = makedev(lval1, lval2); - if (tfile != NULL) { - if (strchr(hbuf.name, '\n') == NULL) { - int s; - s = 3 * fprintf(tfile, "u %0*lo %s\n", TIMSIZ, - (long)sp->st_mtime, hbuf.name); - if (s > N) - N = s; - } else - fprintf(stderr, "%s: warning: file name '%s' in " - "archive contains a newline character " - "and will always be added to archive\n", - progname, hbuf.name); - } -} - -static void -tgetnam(void) -{ -again: if (dblock.dbuf.linkflag == 'L' && (gnuflag>0 || - strcmp(dblock.dbuf.name, "././@LongLink") == 0)) { - tgetgnu(&hbuf.name, &hbuf.namesize); - goto again; - } - if (dblock.dbuf.linkflag == 'K' && (gnuflag>0 || - strcmp(dblock.dbuf.name, "././@LongLink") == 0)) { - tgetgnu(&hbuf.linkname, &hbuf.linksize); - goto again; - } - if ((hbuf.name == NULL || hbuf.namesize < NAMSIZ+PFXSIZ+2) && - (paxrec & PR_PATH) == 0) { - hbuf.namesize = NAMSIZ+PFXSIZ+2; - hbuf.name = srealloc(hbuf.name, hbuf.namesize); - hbuf.name[0] = '\0'; - } - if ((hbuf.linkname == NULL || hbuf.linksize < NAMSIZ+1) && - (paxrec & PR_LINKPATH) == 0) { - hbuf.linksize = NAMSIZ+1; - hbuf.linkname = srealloc(hbuf.linkname, hbuf.linksize); - hbuf.linkname[0] = '\0'; - } - if (hbuf.name[0] == '\0' && (paxrec & PR_PATH) == 0) - nameof(&dblock.dbuf, hbuf.name); - if (hbuf.linkname[0] == '\0' && (paxrec & PR_LINKPATH) == 0) - linkof(&dblock.dbuf, hbuf.linkname); - hbuf.rname = hbuf.name; - if (Aflag) { - while (hbuf.rname[0] == '/') - hbuf.rname++; - if (hbuf.name[0] && hbuf.rname[0] == '\0') - hbuf.rname = "."; - } - hbuf.rlinkname = hbuf.linkname; - if (Aflag) { - while (hbuf.rlinkname[0] == '/') - hbuf.rlinkname++; - if (hbuf.linkname[0] && hbuf.rlinkname[0] == '\0') - hbuf.rlinkname = "."; - } -} - -static void -tgetgnu(char **np, long *sp) -{ - char buf[TBLOCK]; - long long blocks; - long n, bytes; - - n = tgetval(dblock.dbuf.size, sizeof dblock.dbuf.size); - if (*sp <= n) - *np = srealloc(*np, *sp = n+1); - blocks = n; - blocks += TBLOCK-1; - blocks /= TBLOCK; - bytes = n; - while (blocks-- > 0) { - readtape(buf); - memcpy(&(*np)[n-bytes], buf, bytes>TBLOCK?TBLOCK:bytes); - bytes -= TBLOCK; - } - (*np)[n] = '\0'; - readtape((char *)&dblock); -} - -static void -tgetpax(struct stat *sp, long long *devmajor, long long *devminor) -{ - char *keyword, *value; - char buf[TBLOCK]; - char *block, *bp; - long long n, blocks, bytes; - enum paxrec pr; - - n = tgetval(dblock.dbuf.size, sizeof dblock.dbuf.size); - bp = block = smalloc(n+1); - blocks = n; - blocks += TBLOCK-1; - blocks /= TBLOCK; - bytes = n; - while (blocks-- > 0) { - readtape(buf); - memcpy(&block[n-bytes], buf, bytes>TBLOCK?TBLOCK:bytes); - bytes -= TBLOCK; - } - block[n] = '\0'; - while (bp < &block[n]) { - int c; - pr = tgetrec(&bp, &keyword, &value); - switch (pr) { - case PR_ATIME: - sp->st_atime = strtoll(value, NULL, 10); - break; - case PR_GID: - sp->st_gid = strtoll(value, NULL, 10); - break; - case PR_LINKPATH: - c = strlen(value); - if (hbuf.linkname == NULL || hbuf.linksize < c+1) { - hbuf.linksize = c+1; - hbuf.linkname = srealloc(hbuf.linkname, c+1); - } - strcpy(hbuf.linkname, value); - break; - case PR_MTIME: - sp->st_mtime = strtoll(value, NULL, 10); - break; - case PR_PATH: - c = strlen(value); - if (hbuf.name == NULL || hbuf.namesize < c+1) { - hbuf.namesize = c+1; - hbuf.name = srealloc(hbuf.name, c+1); - } - strcpy(hbuf.name, value); - break; - case PR_SIZE: - sp->st_size = strtoll(value, NULL, 10); - break; - case PR_UID: - sp->st_uid = strtoll(value, NULL, 10); - break; - case PR_SUN_DEVMAJOR: - *devmajor = strtoll(value, NULL, 10); - break; - case PR_SUN_DEVMINOR: - *devminor = strtoll(value, NULL, 10); - break; - } - paxrec |= pr; - } - if (dblock.dbuf.linkflag == 'g') { - globrec = paxrec & ~(PR_LINKPATH|PR_PATH|PR_SIZE); - globst = *sp; - } else if (dblock.dbuf.linkflag == 'X') - Eflag = 1; - readtape((char *)&dblock); - free(block); -} - -static enum paxrec -tgetrec(char **bp, char **keyword, char **value) -{ - char *x; - long n = 0; - enum paxrec pr; - - *keyword = ""; - *value = ""; - while (**bp && (n = strtol(*bp, &x, 10)) <= 0 && (*x!=' ' || *x!='\t')) - do - (*bp)++; - while (**bp && **bp != '\n'); - if (*x == '\0' || **bp == '\0') { - (*bp)++; - return PR_NONE; - } - while (x < &(*bp)[n] && (*x == ' ' || *x == '\t')) - x++; - if (x == &(*bp)[n] || *x == '=') - goto out; - *keyword = x; - while (x < &(*bp)[n] && *x != '=') - x++; - if (x == &(*bp)[n]) - goto out; - *x = '\0'; - if (&x[1] < &(*bp)[n]) - *value = &x[1]; - (*bp)[n-1] = '\0'; -out: *bp = &(*bp)[n]; - if (strcmp(*keyword, "atime") == 0) - pr = PR_ATIME; - else if (strcmp(*keyword, "gid") == 0) - pr = PR_GID; - else if (strcmp(*keyword, "linkpath") == 0) - pr = PR_LINKPATH; - else if (strcmp(*keyword, "mtime") == 0) - pr = PR_MTIME; - else if (strcmp(*keyword, "path") == 0) - pr = PR_PATH; - else if (strcmp(*keyword, "size") == 0) - pr = PR_SIZE; - else if (strcmp(*keyword, "uid") == 0) - pr = PR_UID; - else if (strcmp(*keyword, "SUN.devmajor") == 0) - pr = PR_SUN_DEVMAJOR; - else if (strcmp(*keyword, "SUN.devminor") == 0) - pr = PR_SUN_DEVMINOR; - else - pr = PR_NONE; - return pr; -} - -static long long -tgetval(const char *s, int k) -{ - long long n = 0; - int i, h = 0; - - if (gnuflag>0 && s[0] & 0200) { - for (i = k-1; i > 0; i--) { - n += (s[i]&0377) << h; - h += 8; - } - n += (s[0]&0177) << h; - } else { - i = 0; - while (spacechar(s[i]&0377)) - i++; - while (i < k && s[i] && !spacechar(s[i]&0377)) { - n *= 8; - n += s[i++]-'0'; - } - } - return n; -} - -static void -passtape(register struct stat *sp) -{ - long long blocks; - char buf[TBLOCK]; - - switch (dblock.dbuf.linkflag) { - case '2': - case '3': - case '4': - case '5': - case '6': - break; - case '1': - if (oldflag > 0 || gnuflag > 0) - break; - /*FALLTHRU*/ - default: - blocks = sp->st_size; - blocks += TBLOCK-1; - blocks /= TBLOCK; - - while (blocks-- > 0) { - if (((mtstat.st_mode&S_IFMT) == S_IFBLK || - (mtstat.st_mode&S_IFMT) == S_IFREG) && - recno >= nblock && blocks >= nblock) { - long long lpos; - lpos = (blocks/nblock)*nblock*TBLOCK; - if ((volsize == 0 || rdtotal+lpos < volsize) && - lseek(mt, lpos, SEEK_CUR) - != (off_t)-1) { - blocks %= nblock; - rdtotal += lpos; - } - } - readtape(buf); - } - } -} - -static void -putfile(const char *longname, const char *shortname, int olddir, int vis_cnt) -{ - struct stat stbuf; - int infile = -1; - char *copy = NULL, *cend; - size_t sz, slen, ss; - struct direc *dp; - struct getdb *db; - int i, j; - int skip = 0; - char *symblink = 0; - - paxrec = globrec; - if ((hflag ? stat : lstat)(shortname, &stbuf) < 0) { - fprintf(stderr, "%s: could not stat %s\n", progname, longname); - edone(1); - return; - } - if ((stbuf.st_mode&S_IFMT) == S_IFREG && - stbuf.st_dev == mtstat.st_dev && - stbuf.st_ino == mtstat.st_ino) { - fprintf(stderr, "%s: %s same as archive file\n", - progname, longname); - return; - } - if ((stbuf.st_mode&S_IFMT) == S_IFREG && - stbuf.st_size > 077777777777LL) { - if (gnuflag > 0 || oldflag > 0) { - fprintf(stderr, "%s: %s too large (limit 8 GB)\n", - progname, longname); - return; - } - paxrec |= PR_SIZE; - } - if (sysv3 && eflag && (stbuf.st_mode&S_IFMT) == S_IFREG && - stbuf.st_size > volsize - wrtotal - 512) { - fprintf(stderr, "%s: Single file cannot fit on volume\n", - progname); - done(3); - } - if ((stbuf.st_mode&S_IFMT) == S_IFREG || - (stbuf.st_mode&S_IFMT) == S_IFDIR) { - infile = open(shortname, O_RDONLY); - if (infile < 0) { - fprintf(stderr, "%s: %s: cannot open file\n", - progname, longname); - edone(1); - return; - } - } - - if (tfile != NULL && (i = checkupdate(longname, &stbuf)) != '\0') { - if (infile >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR && - i != 'X') - skip = 1; - else { - if (i == 'X' && vflag) - fprintf(stderr, "a %s%s excluded\n", longname, - (stbuf.st_mode&S_IFMT) == S_IFDIR ? - "/" : ""); - goto ret; - } - } - if (!skip && checkw('r', shortname, &stbuf, -1) == 0) - goto ret; - - if ((stbuf.st_mode & S_IFMT) == S_IFDIR && infile >= 0) { - if (order == PREORDER) - goto out; - cont: if (hflag) { - for (i = 0; i < vis_cnt; i++) - if (stbuf.st_dev == vis_dev[i] && - stbuf.st_ino == vis_ino[i]) - goto fini; - if (vis_cnt >= vis_max) { - vis_max += 20; - vis_dev = srealloc(vis_dev, sizeof *vis_dev * - vis_max); - vis_ino = srealloc(vis_ino, sizeof *vis_ino * - vis_max); - } - vis_dev[vis_cnt] = stbuf.st_dev; - vis_ino[vis_cnt] = stbuf.st_ino; - vis_cnt++; - } - getpath(longname, &copy, &cend, &sz, &slen); - if (fchdir(infile) < 0) { - fprintf(stderr, "can't change directories to %s\n", - shortname); - goto fini; - } - db = getdb_alloc(shortname, infile); - while ((dp = getdir(db, &j)) != NULL && !term) { - if (dp->d_ino == 0) - continue; - if (strcmp(".", dp->d_name) == 0 || - strcmp("..", dp->d_name) == 0) - continue; - setpath(dp->d_name, &copy, &cend, slen, &sz, &ss); - putfile(copy, dp->d_name, infile, vis_cnt); - i++; - } - getdb_free(db); - if (fchdir(olddir) < 0) { - fprintf(stderr, "cannot change back?: %s\n", - strerror(errno)); - done(1); - } - fini: free(copy); - if (order == PREORDER) - goto ret; - } -out: - tomodes(longname, &stbuf); - - if (skip || mkname(&dblock.dbuf, longname) < 0) - goto ret; - - if (stbuf.st_nlink > 1 && (stbuf.st_mode&S_IFMT) != S_IFDIR) { - struct dslot *dp; - struct islot *ip; - - dp = dfind(&devices, stbuf.st_dev); - if ((ip = ifind(stbuf.st_ino, &dp->itree)) != NULL) { - ip->count--; - sprintf(dblock.dbuf.size, "%11.11o", 0); - if (mklink(&dblock.dbuf, ip->pathname, longname) < 0) - goto ret; - dblock.dbuf.linkflag = '1'; - sprintf(dblock.dbuf.chksum, "%7.7o", checksum(0)); - if (paxrec != PR_NONE && oldflag <= 0 && gnuflag <= 0) - wrpax(longname, ip->pathname, &stbuf); - writetape( (char *) &dblock); - if (vflag) - fprintf(stderr, "a %s link to %s\n", - longname, ip->pathname); - goto ret; - } - else { - int namelen = strlen(longname); - ip = calloc(1, sizeof *ip); - if (ip == 0 || (ip->pathname=malloc(namelen+1)) == 0) { - if (freemem) { - write(2, "Out of memory. " - "Link information lost\n", 37); - freemem = 0; - edone(1); - } - } else { - ip->nextp = ihead; - ihead = ip; - ip->inum = stbuf.st_ino; - ip->count = stbuf.st_nlink - 1; - strcpy(ip->pathname, longname); - iput(ip, &dp->itree); - } - } - } - - switch (stbuf.st_mode & S_IFMT) { - default: - def: fprintf(stderr, "%s: %s is not a file. Not dumped\n", - progname, longname); - edone(1); - goto ret; - case S_IFREG: - dblock.dbuf.linkflag = '0'; - wrhdr(longname, NULL, &stbuf); - putreg(longname, shortname, infile, &stbuf); - goto ret; - case S_IFLNK: - if (putsym(longname, shortname, &symblink, stbuf.st_size) < 0) - goto ret; - dblock.dbuf.linkflag = '2'; - break; - case S_IFCHR: - if (oldflag > 0) - goto def; - dblock.dbuf.linkflag = '3'; - break; - case S_IFBLK: - if (oldflag > 0) - goto def; - dblock.dbuf.linkflag = '4'; - break; - case S_IFDIR: - if (oldflag > 0) - goto nop; - dblock.dbuf.linkflag = '5'; - break; - case S_IFIFO: - if (oldflag > 0) - goto def; - dblock.dbuf.linkflag = '6'; - break; - } - wrhdr(longname, symblink, &stbuf); - free(symblink); -nop: if (order == PREORDER && infile >= 0 && (stbuf.st_mode&S_IFMT)==S_IFDIR) - goto cont; -ret: if (infile >= 0) - close(infile); -} - -static void -putreg(const char *longname, const char *shortname, int infile, struct stat *sp) -{ - long long blocks; - char buf[TBLOCK]; - int i; - - blocks = (sp->st_size + (TBLOCK-1)) / TBLOCK; - midfile = 1; - while ((i = read(infile, buf, TBLOCK)) > 0 && blocks > 0) { - if (i < TBLOCK) - memset(&buf[i], 0, TBLOCK - i); - writetape(buf); - blocks--; - } - close(infile); - midfile = 0; - if (blocks != 0 || i != 0) { - fprintf(stderr, "%s: file changed size\n", longname); - edone(1); - } - while (blocks-- > 0) - putempty(); -} - -static int -putsym(const char *longname, const char *shortname, - char **symblink, size_t size) -{ - size_t n; - ssize_t len; - - n = size ? size : PATH_MAX; - *symblink = smalloc(n+1); - if ((len = readlink(shortname, *symblink, n)) < 0) { - fprintf(stderr, "can't read symbolic link %s\n", longname); - edone(1); - return -1; - } - (*symblink)[len] = '\0'; - if (len >= 100) { - if (oldflag <= 0 && gnuflag <= 0 && utf8(*symblink)) { - paxrec |= PR_LINKPATH; - strcpy(dblock.dbuf.linkname, sequence()); - return 0; - } - fprintf(stderr, "%s: %s: symbolic link too long\n", - progname, longname); - edone(1); - return -1; - } - memcpy(dblock.dbuf.linkname, *symblink, len); - if (len < NAMSIZ) - dblock.dbuf.linkname[len] = '\0'; - return 0; -} - -static void -wrhdr(const char *longname, const char *symblink, struct stat *sp) -{ - long long blocks; - - blocks = (sp->st_mode&S_IFMT) == S_IFREG ? - (sp->st_size + (TBLOCK-1)) / TBLOCK : 0; - if (vflag) { - if (nflag) - fprintf(stderr, "seek = %lldK\t", - (wrtotal+recno*2+1023)/1024); - fprintf(stderr, "a %s%s ", longname, - (sp->st_mode&S_IFMT) == S_IFDIR ? "/" : ""); - if (symblink) - fprintf(stderr, "symbolic link to %s\n", symblink); - else if (nflag) - fprintf(stderr, "%lldK\n", - blocks&01?blocks|02:blocks>>1); - else - fprintf(stderr, "%lld tape blocks\n", blocks); - } - sprintf(dblock.dbuf.chksum, "%7.7o", checksum(0)); - if (paxrec != PR_NONE && oldflag <= 0 && gnuflag <= 0) - wrpax(longname, symblink, sp); - writetape( (char *) &dblock); -} - -static void -wrpax(const char *longname, const char *linkname, struct stat *sp) -{ - char oblock[TBLOCK]; - char *pdata = NULL; - long psize = 0, pcur = 0; - long long blocks, i; - - memcpy(oblock, (char *)&dblock, TBLOCK); - memset((char *)&dblock, 0, TBLOCK); - if (paxrec & PR_ATIME) - addrec(&pdata, &psize, &pcur, "atime", NULL, sp->st_atime); - if (paxrec & PR_GID) - addrec(&pdata, &psize, &pcur, "gid", NULL, sp->st_gid); - if (paxrec & PR_LINKPATH) - addrec(&pdata, &psize, &pcur, "linkpath", linkname, 0); - if (paxrec & PR_MTIME) - addrec(&pdata, &psize, &pcur, "mtime", NULL, sp->st_mtime); - if (paxrec & PR_PATH) - addrec(&pdata, &psize, &pcur, "path", longname, 0); - if (paxrec & PR_SIZE) - addrec(&pdata, &psize, &pcur, "size", NULL, sp->st_size); - if (paxrec & PR_UID) - addrec(&pdata, &psize, &pcur, "uid", NULL, sp->st_uid); - if (paxrec & PR_SUN_DEVMAJOR) - addrec(&pdata, &psize, &pcur, "SUN.devmajor", NULL, - major(sp->st_rdev)); - if (paxrec & PR_SUN_DEVMINOR) - addrec(&pdata, &psize, &pcur, "SUN.devminor", NULL, - minor(sp->st_rdev)); - paxnam(&dblock.dbuf, longname); - sprintf(dblock.dbuf.mode, "%7.7o", 0444); - sprintf(dblock.dbuf.uid, "%7.7o", 0); - sprintf(dblock.dbuf.gid, "%7.7o", 0); - sprintf(dblock.dbuf.size, "%11.11lo", pcur); - sprintf(dblock.dbuf.mtime, "%11.11o", 0); - strcpy(dblock.dbuf.magic, "ustar"); - dblock.dbuf.version[0] = dblock.dbuf.version[1] = '0'; - strcpy(dblock.dbuf.uname, "root"); - strcpy(dblock.dbuf.gname, "root"); - dblock.dbuf.linkflag = Eflag ? 'X' : 'x'; - sprintf(dblock.dbuf.chksum, "%7.7o", checksum(0)); - writetape( (char *) &dblock); - memset(&pdata[pcur], 0, psize - pcur); - blocks = (pcur + (TBLOCK-1)) / TBLOCK; - for (i = 0; i < blocks; i++) - writetape(&pdata[i*TBLOCK]); - memcpy((char *)&dblock, oblock, TBLOCK); - free(pdata); -} - -static void -addrec(char **pdata, long *psize, long *pcur, - const char *keyword, const char *sval, long long lval) -{ - char dval[25], xval[25]; - long od, d, r; - - if (sval == 0) { - sprintf(xval, "%lld", lval); - sval = xval; - } - r = strlen(keyword) + strlen(sval) + 3; - d = 0; - do { - od = d; - sprintf(dval, "%ld", od + r); - d = strlen(dval); - } while (d != od); - *psize += d + r + 1 + 512; - *pdata = srealloc(*pdata, *psize); - sprintf(&(*pdata)[*pcur], "%s %s=%s\n", dval, keyword, sval); - *pcur += d + r; -} - -static void -paxnam(struct header *hp, const char *name) -{ - char buf[257], *bp; - const char *cp, *np; - int bl = 0; - static int pid; - - if (pid == 0) - pid = getpid(); - for (np = name; *np; np++); - while (np > name && *np != '/') { - np--; - bl++; - } - if ((np > name || *name == '/') && np-name <= 120) - for (bp = buf, cp = name; cp < np; bp++, cp++) - *bp = *cp; - else { - *buf = '.'; - bp = &buf[1]; - } - snprintf(bp, sizeof buf - (bp - buf), "/PaxHeaders.%d/%s", - pid, bl < 100 ? np>name?&np[1]:name : sequence()); - mkname(hp, buf); -} - -static void -doxtract(char *argv[]) -{ - struct stat stbuf; - char *name; - char **cp; - int try; - - suprmsg(); - for (;;) { - try = 0; - tgetdir(&stbuf); - if (endtape(0)) - break; - - name = hbuf.rname; - if (*argv == 0) - goto gotit; - - for (cp = argv; *cp; cp++) - if (prefix(*cp, name)) { - try = 1; - goto gotit; - } - passtape(&stbuf); - continue; - -gotit: - if (checkw('x', name, &stbuf, dblock.dbuf.linkflag) == 0) { - passtape(&stbuf); - continue; - } - - if (checkdir(name, &stbuf) == '/') - goto dir; - - switch (dblock.dbuf.linkflag) { - default: - case '0': - case '\0': - if (xtrreg(name, &stbuf) < 0) - continue; - break; - case '1': - if (xtrlink(name, &stbuf, 0) == 0) - passtape(&stbuf); - else if (stbuf.st_size > 0) - xtrreg(name, &stbuf); - continue; - case '2': - xtrlink(name, &stbuf, 1); - continue; - case '3': - if (xtrdev(name, &stbuf, S_IFCHR) < 0) - continue; - break; - case '4': - if (xtrdev(name, &stbuf, S_IFBLK) < 0) - continue; - break; - case '5': - dir: if (xtrdir(name, &stbuf) < 0) - continue; - break; - case '6': - if (xtrdev(name, &stbuf, S_IFIFO) < 0) - continue; - break; - } - if (pflag) - chmod(name, stbuf.st_mode & cmask(&stbuf, 0)); - if (mflag == 0) { - struct utimbuf timep; - - if (paxrec & PR_ATIME) - timep.actime = stbuf.st_atime; - else - timep.actime = time(NULL); - timep.modtime = stbuf.st_mtime; - if (utime(name, &timep) < 0) - fprintf(stderr, "can't set time on %s\n", name); - } - gotcha += try; - } - if (gotcha < files) - fprintf(stderr, "%s: %ld file(s) not extracted\n", - progname, files - gotcha); -} - -static int -xtrreg(const char *name, struct stat *sp) -{ - long long blocks, bytes; - char buf[TBLOCK]; - int ofile; - - remove(name); - if ((ofile = creat(name, sp->st_mode & cmask(sp, 1))) < 0) { - fprintf(stderr, "%s: %s - cannot create\n", progname, name); - edone(1); - passtape(sp); - return -1; - } - tchown(chown, name, sp->st_uid, sp->st_gid); - blocksof(name, sp, &blocks, &bytes); - while (blocks-- > 0) { - readtape(buf); - if (bytes > TBLOCK) { - if (write(ofile, buf, TBLOCK) < 0) { - fprintf(stderr, - "%s: %s: HELP - extract write error\n", - progname, name); - done(2); - } - } else - if (write(ofile, buf, (int) bytes) < 0) { - fprintf(stderr, - "%s: %s: HELP - extract write error\n", - progname, name); - done(2); - } - bytes -= TBLOCK; - } - close(ofile); - return 0; -} - -static int -xtrlink(const char *name, struct stat *sp, int symbolic) -{ - struct stat nst, ost; - - if (lstat(name, &nst) == 0) { - if ((nst.st_mode & S_IFMT) == S_IFDIR) - rmdir(name); - else if (!symbolic && lstat(hbuf.rlinkname, &ost) == 0 && - nst.st_dev == ost.st_dev && - nst.st_ino == ost.st_ino) - /* An attempt to hardlink "name" to itself. This - * happens if a file with more than link has been - * stored in the archive more than once under the - * same name. This is odd but the best we can do - * is nothing at all in such a case. */ - goto good; - else - unlink(name); - } - if ((symbolic?symlink:link)(symbolic?hbuf.linkname:hbuf.rlinkname, - name) < 0) { - if (symbolic) - fprintf(stderr, "%s: symbolic link failed\n", name); - else - fprintf(stderr, "%s: %s: cannot link\n", - progname, name); - edone(1); - return -1; - } -good: if (vflag) - fprintf(stderr, "%s %s %s\n", name, - symbolic ? "symbolic link to" : "linked to", - hbuf.linkname); - if (symbolic) - tchown(lchown, name, sp->st_uid, sp->st_gid); - return 0; -} - -static int -xtrdev(const char *name, struct stat *sp, mode_t type) -{ - remove(name); - if (mknod(name, sp->st_mode&cmask(sp, 1) | type, sp->st_rdev) < 0) { - fprintf(stderr, "Can't create special %s\n", name); - edone(1); - return -1; - } - tchown(chown, name, sp->st_uid, sp->st_gid); - return 0; -} - -static int -xtrdir(const char *name, struct stat *sp) -{ - remove(name); - if (mkdir(name, sp->st_mode&cmask(sp, 1)|0700) < 0 && errno != EEXIST) { - fprintf(stderr, "%s: %s: %s\n", progname, name, - strerror(errno)); - edone(1); - return -1; - } - tchown(chown, name, sp->st_uid, sp->st_gid); - return 0; -} - -static void -blocksof(const char *name, struct stat *sp, long long *blocks, long long *bytes) -{ - *blocks = ((*bytes = sp->st_size) + TBLOCK-1)/TBLOCK; - if (vflag) - fprintf(stderr, "x %s, %lld bytes, ""%lld%s\n", - name, *bytes, - nflag ? (*blocks&01?*blocks|02:*blocks)>>1 : *blocks, - nflag ? "K" : " tape blocks"); -} - -static void -tchown(int (*chfn)(const char *, uid_t, gid_t), - const char *name, uid_t uid, gid_t gid) -{ - if (oflag == 0) { - if (chfn(name, uid, -1) < 0) - fprintf(stderr, "%s: %s: owner not changed\n", - progname, name); - if (chfn(name, -1, gid) < 0) - fprintf(stderr, "%s: %s: group not changed\n", - progname, name); - } -} - -static void -dotable(char *argv[]) -{ - struct stat stbuf; - char **cp; - char *name; - - for (;;) { - tgetdir(&stbuf); - if (endtape(0)) - break; - name = hbuf.name; - if (*argv == 0) - goto yes; - for (cp = argv; *cp; cp++) - if (prefix(*cp, name)) { - gotcha++; - goto yes; - } - goto no; - yes: if (vflag) - longt(&stbuf, dblock.dbuf.linkflag); - printf("%s", name); - if (dblock.dbuf.linkflag == '1') - printf(" linked to %s", hbuf.linkname); - else if (dblock.dbuf.linkflag == '2') - printf(" symbolic link to %s", hbuf.linkname); - printf("\n"); - no: passtape(&stbuf); - } - if (gotcha < files) - fprintf(stderr, "%s: %ld file(s) not found\n", - progname, files - gotcha); -} - -static void -putempty(void) -{ - char buf[TBLOCK]; - - memset(buf, 0, sizeof buf); - writetape(buf); -} - -static void -longt(register struct stat *st, int linkflag) -{ - struct tm *tp; - char buf[20]; - - pmode(st, linkflag); - printf("%3ld/%-3ld", (long)st->st_uid, (long)st->st_gid); - printf(" %6lld", (long long)st->st_size); - tp = localtime(&st->st_mtime); - strftime(buf, sizeof buf, "%b %e %H:%M %Y", tp); - printf(" %17.17s ", buf); -} - -#define SUID 04000 -#define SGID 02010 -#define NFMT 02000 -#define ROWN 0400 -#define WOWN 0200 -#define XOWN 0100 -#define RGRP 040 -#define WGRP 020 -#define XGRP 010 -#define ROTH 04 -#define WOTH 02 -#define XOTH 01 -#define STXT 01000 -static int m1[] = { 1, ROWN, 'r', '-' }; -static int m2[] = { 1, WOWN, 'w', '-' }; -static int m3[] = { 2, SUID, 's', XOWN, 'x', '-' }; -static int m4[] = { 1, RGRP, 'r', '-' }; -static int m5[] = { 1, WGRP, 'w', '-' }; -static int m6[] = { 3, SGID, 's', NFMT, 'l', XGRP, 'x', '-' }; -static int m7[] = { 1, ROTH, 'r', '-' }; -static int m8[] = { 1, WOTH, 'w', '-' }; -static int m9[] = { 2, STXT, 't', XOTH, 'x', '-' }; - -static int *m[] = { m1, m2, m3, m4, m5, m6, m7, m8, m9}; - -static void -pmode(register struct stat *st, int linkflag) -{ - register int **mp; - int c; - - switch (linkflag) { - case -1: - switch (st->st_mode & S_IFMT) { - case S_IFLNK: c = 'l'; break; - case S_IFCHR: c = 'c'; break; - case S_IFBLK: c = 'b'; break; - case S_IFDIR: c = 'd'; break; - case S_IFIFO: c = 'p'; break; - default: c = '-'; - } break; - case '2': c = 'l'; break; - case '3': c = 'c'; break; - case '4': c = 'b'; break; - case '5': c = 'd'; break; - case '6': c = 'p'; break; - default: c = '-'; - } - printf("%c", c); - for (mp = &m[0]; mp < &m[9];) - tselect(*mp++, st); -} - -static void -tselect(int *pairp, struct stat *st) -{ - register int n, *ap; - - ap = pairp; - n = *ap++; - while (--n>=0 && (ap++, (st->st_mode&ap[-1])!=ap[-1])) - ap++; - printf("%c", *ap); -} - -static int -checkdir(register char *name, struct stat *sp) -{ - register char *cp; - - for (cp = name; *cp; cp++) { - if (*cp == '/' && cp > name) { - *cp = '\0'; - if (access(name, X_OK) < 0) { - if (mkdir(name, 0777) < 0 && errno != EEXIST) { - fprintf(stderr, "%s: %s: %s\n", - progname, name, - strerror(errno)); - edone(1); - } - tchown(chown, name, sp->st_uid, sp->st_gid); - } - *cp = '/'; - } - } - return cp > name ? cp[-1] : cp[0]; -} - -/*ARGUSED*/ -static void -onsig(int signo) -{ - sigset(signo, SIG_IGN); - if (midfile) { - fprintf(stderr, "%s: Interrupted in the middle of a file\n", - progname); - done(signo | 0200); - } - term = 1; -} - -static void -tomodes(const char *name, register struct stat *sp) -{ - const char *cp; - int mode; - - memset(&dblock, 0, sizeof dblock); - mode = gnuflag<=0&&!Eflag?sp->st_mode&07777:sp->st_mode&(07777|S_IFMT); - sprintf(dblock.dbuf.mode, "%7.7o", mode); - sprintf(dblock.dbuf.uid, "%7.7lo", (long)(sp->st_uid <= 07777777 ? - sp->st_uid : (paxrec |= PR_UID, 60001))); - sprintf(dblock.dbuf.gid, "%7.7lo", (long)(sp->st_gid <= 07777777 ? - sp->st_gid : (paxrec |= PR_GID, 60001))); - sprintf(dblock.dbuf.size, "%11.11llo", (sp->st_mode&S_IFMT)==S_IFREG ? - (long long)sp->st_size&077777777777LL : 0LL); - sprintf(dblock.dbuf.mtime, "%11.11lo", (long)sp->st_mtime); - if (oldflag <= 0) { - strcpy(dblock.dbuf.magic, gnuflag>0 ? "ustar " : "ustar"); - if (gnuflag <= 0) - dblock.dbuf.version[0] = dblock.dbuf.version[1] = '0'; - if ((cp = getuser(sp->st_uid)) != NULL) - sprintf(dblock.dbuf.uname, "%.31s", cp); - else - fprintf(stderr, - "%s: could not get passwd information for %s\n", - progname, name); - if ((cp = getgroup(sp->st_gid)) != NULL) - sprintf(dblock.dbuf.gname, "%.31s", cp); - else - fprintf(stderr, - "%s: could not get group information for %s\n", - progname, name); - if (Eflag && major(sp->st_rdev) > 07777777 && - ((sp->st_mode&S_IFMT) == S_IFBLK || - (sp->st_mode&S_IFMT) == S_IFCHR)) - paxrec |= PR_SUN_DEVMAJOR; - sprintf(dblock.dbuf.devmajor, "%7.7o", - (int)major(sp->st_rdev)&07777777); - if (Eflag && minor(sp->st_rdev) > 07777777 && - ((sp->st_mode&S_IFMT) == S_IFBLK || - (sp->st_mode&S_IFMT) == S_IFCHR)) - paxrec |= PR_SUN_DEVMINOR; - sprintf(dblock.dbuf.devminor, "%7.7o", - (int)minor(sp->st_rdev)&07777777); - } -} - -static int -checksum(int invert) -{ - register uint32_t i; - register char *cp; - - for (cp = dblock.dbuf.chksum; - cp < &dblock.dbuf.chksum[sizeof(dblock.dbuf.chksum)]; - cp++) - *cp = ' '; - i = 0; - for (cp = dblock.dummy; cp < &dblock.dummy[TBLOCK]; cp++) - i += oldflag>0^invert ? *(signed char *)cp : *cp & 0377; - return(i); -} - -static int -checkw(int c, const char *name, struct stat *sp, int linkflag) -{ - if (wflag) { - printf("%c ", c); - if (vflag) - longt(sp, linkflag); - printf("%s: ", name); - fflush(stdout); - if (response() == 'y'){ - return(1); - } - return(0); - } - return(1); -} - -static int -response(void) -{ - char c, c2; - - if (read(0, &c, 1) == 1 && c != '\n') - while (read(0, &c2, 1) == 1 && c2 != '\n'); - else c = 'n'; - return(c); -} - -static int -checkupdate(const char *arg, struct stat *sp) -{ - long mtime; /* cf. LONG_MAX in readexcl() */ - off_t seekp; - char c; - - rewind(tfile); - for (;;) { - if ((seekp = lookup(arg)) < 0) - return(0); - fseeko(tfile, seekp+1, SEEK_SET); - fscanf(tfile, "%c %lo", &c, &mtime); - if (c == 'u' && sp->st_mtime > mtime) - return(0); - else - return(c); - } -} - -static void -done(int n) -{ - if (rflag && mt >= 0 && close(mt) < 0 && writerror == 0) { - fprintf(stderr, "%s: tape write error\n", progname); - if (n == 0) - n = 2; - } - exit(n); -} - -static int -prefix(register const char *s1, register const char *s2) -{ - while (*s1) - if (*s1++ != *s2++) - return(0); - if (*s2) - return(*s2 == '/'); - return(1); -} - -static int njab; -static off_t -lookup(const char *s) -{ - return bsrch(s, strlen(s), low, high); -} - -static off_t -bsrch(const char *s, int n, off_t l, off_t h) -{ - register int i, j; - char *b; - off_t m, m1; - - b = alloca(N); - njab = 0; - -loop: - if(l >= h) - return(-1L); - m = l + (h-l)/2 - N/2; - if(m < l) - m = l; - fseeko(tfile, m, SEEK_SET); - fread(b, 1, N, tfile); - njab++; - for(i=0; i<N; i++) { - if(b[i] == '\n') - break; - m++; - } - if(m >= h) - return(-1L); - m1 = m; - j = i; - for(i++; i<N; i++) { - m1++; - if(b[i] == '\n') - break; - } - i = cmp(b+j, s, n); - if(i < 0) { - h = m; - goto loop; - } - if(i > 0) { - l = m1; - goto loop; - } - return(m); -} - -static int -cmp(const char *b, const char *s, size_t n) -{ - register int i; - - if(b[0] != '\n') - abort(); - for(i=0; i<n; i++) { - if((b[i+1+TIMSIZ+1+2]&0377) > (s[i]&0377)) - return(-1); - if((b[i+1+TIMSIZ+1+2]&0377) < (s[i]&0377)) - return(1); - } - return(b[i+1+TIMSIZ+1+2] == '\n'? 0 : -1); -} - -static int -readtape(char *buffer) -{ - static int rd; - int i = -1, j; - -again: if (recno >= nblock || first == 0) { - if (first == 0 && nblock == 1 && bflag == 0) - j = NBLOCK; - else - j = nblock; - if (volsize % TBLOCK*j) { - fprintf(stderr, "%s: Volume size not a multiple " - "of block size.\n", progname); - done(1); - } - if ((rd = i = mtread(tbuf, TBLOCK*j)) < 0) { - fprintf(stderr, "%s: tape read error\n", progname); - done(3); - } - if (maybezip && checkzip(tbuf[0].dummy, i) == 1) - goto again; - if (first == 0 || i == 0) { - if ((i % TBLOCK) != 0 || i == 0) { - tbe: fprintf(stderr, "%s: tape blocksize error\n", - progname); - done(3); - } - i /= TBLOCK; - if (i != nblock) { - if ((mtstat.st_mode&S_IFMT) == S_IFCHR && - (i != 1 || bflag >= B_DEFN)) - fprintf(stderr, "%s: blocksize = %d\n", - progname, i); - nblock = i; - } - if (tapeblock == 0) - tapeblock = i; - } - recno = 0; - } - first = 1; - if ((rd -= TBLOCK) < 0) - goto tbe; - memcpy(buffer, &tbuf[recno++], TBLOCK); - return(TBLOCK); -} - -static int -writetape(const char *buffer) -{ - first = 1; - if (recno >= nblock) { - if (mtwrite(tbuf, TBLOCK*nblock) < 0) { - fprintf(stderr, "%s: tape write error\n", progname); - writerror++; - done(2); - } - recno = 0; - } - memcpy(&tbuf[recno++], buffer, TBLOCK); - if (recno >= nblock) { - if (mtwrite(tbuf, TBLOCK*nblock) < 0) { - fprintf(stderr, "%s: tape write error\n", progname); - writerror++; - done(2); - } - recno = 0; - } - return(TBLOCK); -} - -static void -tseek(int n, int rew) -{ - int fault; -#ifndef __G__ - if (tapeblock > 0 && rew) { -#if defined (__linux__) || defined (__sun) || defined (__FreeBSD__) || \ - defined (__hpux) || defined (_AIX) || defined (__NetBSD__) || \ - defined (__OpenBSD__) || defined (__DragonFly__) || defined (__APPLE__) - struct mtop mo; - mo.mt_op = n > 0 ? MTFSR : MTBSR; - mo.mt_count = (n > 0 ? n : -n) / tapeblock; - fault = ioctl(mt, MTIOCTOP, &mo) < 0; -#else /* SVR4.2MP */ - int t, a; - t = n > 0 ? T_SBF : T_SBB; - a = (n > 0 ? n : -n) / tapeblock; - fault = ioctl(mt, t, a) < 0; -#endif /* SVR4.2MP */ - } else -#endif - fault = lseek(mt, TBLOCK*n, SEEK_CUR) == (off_t)-1; - if (fault && rew) { - fprintf(stderr, "%s: device seek error\n", progname); - done(4); - } -} - -static void -backtape(int rew) -{ - tseek(-nblock, rew); - if (recno >= nblock) { - recno = nblock - 1; - if (mtread(tbuf, TBLOCK*nblock) < 0) { - fprintf(stderr, "%s: tape read error after seek\n", - progname); - done(4); - } - tseek(-nblock, rew); - } else if (rew) - recno--; -} - -static void -flushtape(void) -{ - if (mtwrite(tbuf, TBLOCK*nblock) < 0) { - fprintf(stderr, "%s: tape write error\n", progname); - writerror++; - done(2); - } -} - -static void * -srealloc(void *op, size_t size) -{ - void *np; - - if ((np = realloc(op, size)) == NULL) { - write(2, "no memory\n", 10); - _exit(077); - } - return np; -} - -static void * -smalloc(size_t size) -{ - return srealloc(NULL, size); -} - -static void * -scalloc(size_t count, size_t nelem) -{ - void *np; - - if ((np = calloc(count, nelem)) == NULL) { - write(2, "no memory\n", 10); - _exit(077); - } - return np; -} - -static void * -bfalloc(size_t n) -{ - static long pagesize; - void *vp; - - if (pagesize == 0) - if ((pagesize = sysconf(_SC_PAGESIZE)) < 0) - pagesize = 4096; - if ((vp = memalign(pagesize, n)) == NULL) { - fprintf(stderr, "%s: cannot allocate physio buffer\n", - progname); - done(1); - } - return vp; -} - -static char * -nameof(struct header *hp, char *buf) -{ - const char *cp; - register char *bp = buf; - - if (gnuflag <= 0 && hp->prefix[0] != '\0') { - cp = hp->prefix; - while (cp < &hp->prefix[PFXSIZ] && *cp) - *bp++ = *cp++; - if (bp > buf) - *bp++ = '/'; - } - cp = hp->name; - while (cp < &hp->name[NAMSIZ] && *cp) - *bp++ = *cp++; - *bp = '\0'; - return buf; -} - -static int -mkname(struct header *hp, const char *fn) -{ - const char *cp, *cs = NULL; - - if (Aflag) - while (*fn == '/') - fn++; - for (cp = fn; *cp; cp++) { - if (*cp == '/' && cp[1] != '\0' && cp > fn && - cp - fn <= PFXSIZ && - gnuflag <= 0 && oldflag <= 0) - cs = cp; - } - if (cp - (cs ? &cs[1] : fn) > NAMSIZ) { - if (oldflag <= 0 && gnuflag <= 0 && utf8(fn)) { - paxrec |= PR_PATH; - strcpy(hp->name, sequence()); - return 0; - } - fprintf(stderr, "%s: file name too long\n", fn); - edone(1); - return -1; - } - if (cs && cp - fn > NAMSIZ) { - memcpy(hp->prefix, fn, cs - fn); - if (cs - fn < PFXSIZ) - hp->prefix[cs - fn] = '\0'; - memcpy(hp->name, &cs[1], cp - &cs[1]); - if (cp - &cs[1] < NAMSIZ) - hp->name[cp - &cs[1]] = '\0'; - } else { - memcpy(hp->name, fn, cp - fn); - if (cp - fn < NAMSIZ) - hp->name[cp - fn] = '\0'; - } - return 0; -} - -static char * -linkof(struct header *hp, char *buf) -{ - const char *cp; - register char *bp = buf; - - - cp = hp->linkname; - while (cp < &hp->linkname[NAMSIZ] && *cp) - *bp++ = *cp++; - *bp = '\0'; - return buf; -} - -static int -mklink(struct header *hp, const char *fn, const char *refname) -{ - const char *cp; - - if (Aflag) - while (*fn == '/') - fn++; - for (cp = fn; *cp; cp++); - if (cp - fn > NAMSIZ) { - if (oldflag <= 0 && gnuflag <= 0 && utf8(fn)) { - paxrec |= PR_LINKPATH; - strcpy(hp->linkname, sequence()); - return 0; - } - fprintf(stderr, "%s: %s: linked to %s\n", - progname, refname, fn); - fprintf(stderr, "%s: %s: linked name too long\n", - progname, fn); - edone(1); - return -1; - } - memcpy(hp->linkname, fn, cp - fn); - if (cp - fn < NAMSIZ) - hp->linkname[cp - fn] = '\0'; - return 0; -} - -static void -edone(int i) -{ - if (eflag && sysv3 == 0) - done(i); -} - -static ssize_t -mtwrite(const void *vdata, size_t sz) -{ - register ssize_t wo, wt = 0; - const char *data = vdata; - - if (volsize && wrtotal >= volsize) { - newvolume(); - wrtotal = 0; - } - do { - if ((wo = write(mt, data + wt, sz - wt)) < 0) { - if (errno == EINTR) - continue; - else if (wt > 0) { - wt += wo; - break; - } else - return wo; - } - wt += wo; - } while (wt < sz); - wrtotal += sz; - return wt; -} - -static ssize_t -mtread(void *vdata, size_t sz) -{ - register ssize_t ro, rt = 0; - char *data = vdata; - - if (volsize && rdtotal >= volsize) { - newvolume(); - rdtotal = 0; - } - do { - if ((ro = read(mt, data + rt, sz - rt)) <= 0) { - if (ro < 0) { - if (errno == EINTR) - continue; - } - if (rt > 0) { - rt += ro; - break; - } - return ro; - } - rt += ro; - } while (Bflag != 0 && rt < sz); - rdtotal += sz; - return rt; -} - -static void -newvolume(void) -{ - static int ttyfd = -1; - int curfd; - char c; - - if (close(mt) < 0) { - fprintf(stderr, "%s: close error on archive: %s\n", progname, - strerror(errno)); - done(1); - } - if ((curfd = open(".", O_RDONLY)) < 0) { - fprintf(stderr, "cannot open current directory: %s\n", - strerror(errno)); - done(1); - } - goback(workdir); - fprintf(stderr, "%s: please insert new volume, then press RETURN.\a", - progname); - if (ttyfd < 0 && isatty(0) || ttyfd == 0) - ttyfd = 0; - else - ttyfd = open("/dev/tty", O_RDONLY); - do - if (read(ttyfd, &c, 1) != 1) - done(0); - while (c != '\n'); - if (ttyfd > 0) - close(ttyfd); - if ((mt = open(usefile, rflag ? O_RDWR : O_RDONLY)) < 0) { - fprintf(stderr, "%s: cannot open %s\n", progname, usefile); - done(1); - } - domtstat(); - if (rflag) - odirect(); - goback(curfd); - close(curfd); -} - -static void -goback(int fd) -{ - if (fchdir(fd) < 0) { - fprintf(stderr, "cannot change back?: %s\n", strerror(errno)); - done(1); - } -} - -static void -getpath(const char *path, char **file, char **filend, size_t *sz, size_t *slen) -{ - *sz = 14 + strlen(path) + 2; - *file = smalloc(*sz); - *filend = *file; - if (path[0] == '/' && path[1] == '\0') - *(*filend)++ = '/'; - else { - const char *cp = path; - while ((*(*filend)++ = *cp++) != '\0'); - (*filend)[-1] = '/'; - } - *slen = *filend - *file; -} - -static void -setpath(const char *base, char **file, char **filend, - size_t slen, size_t *sz, size_t *ss) -{ - if (slen + (*ss = strlen(base)) >= *sz) { - *sz += slen + *ss + 15; - *file = srealloc(*file, *sz); - *filend = &(*file)[slen]; - } - strcpy(*filend, base); -} - -static void -defaults(void) -{ - struct iblok *ip; - char *line = NULL, *x, *y, *cp; - size_t size = 0; - struct magtape *mp; - - if ((ip = ib_open(TARDFL, 0)) == NULL) - return; - while (ib_getlin(ip, &line, &size, srealloc) != 0) { - if (strncmp(line, "archive", 7) == 0) { - if (line[8] == '=' && line[7] >= '0' && line[7] <= '9'){ - mp = &magtapes[line[7] - '0']; - x = &line[9]; - } else if (line[7] == '=') { - x = &line[8]; - mp = &magtapes[10]; - } else - continue; - for (y = x; *y && *y != ' ' && *y != '\t'; y++); - mp->device = cp = smalloc(y - x + 1); - while (x < y) - *cp++ = *x++; - *cp = '\0'; - mp->block = 1; - mp->size = 0; - mp->nflag = 0; - if (*x) { - mp->block = strtol(x, &y, 10); - if (y > x && *(x=y)) { - mp->size = strtoll(x, &y, 10) * 1024; - if (y > x && *(x=y)) { - while (*x && (*x == ' ' || - *x == '\t' || - *x == '\n')) - x++; - if (*x == 'n' || *x == 'N') - mp->nflag = 1; - else - mp->nflag = 0; - } - } - } - } else if (strncmp(line, "order=", 6) == 0) { - if (strcmp(&line[6], "post\n") == 0) - order = POSTORDER; - else if (strcmp(&line[6], "pre\n") == 0) - order = PREORDER; - } - } - ib_close(ip); - if (line) - free(line); -} - -static void -settape(int c) -{ - struct magtape *mp; - - if (c >= '0' && c <= '9') - mp = &magtapes[c - '0']; - else { - if (magtapes[10].device) - mp = &magtapes[10]; - else - mp = &magtapes[0]; - c = '0'; - } - if (mp->device == NULL) { - fprintf(stderr, "%s: missing or invalid 'archive%c=' entry " - "in %s.\n", progname, c, TARDFL); - return; - } - usefile = mp->device; - if (bflag == 0 && mp->block > 0) { - nblock = mp->block; - bflag = B_DEFN; - } - if (kflag == 0) - volsize = mp->size; - if (nflag < 2) - nflag = mp->nflag; -} - -static void -suprmsg(void) -{ - if (Aflag && vflag) - fprintf(stderr, "Suppressing absolute pathnames\n"); -} - -static void -odirect(void) -{ -#if defined (__linux__) && defined (O_DIRECT) - /* - * If we are operating on a floppy disk block device and know - * its track size, use direct i/o. This has the advantage that - * signals can be delivered after each write(); otherwise, the - * kernel will buffer the entire data, close() will put us in - * a non-interruptible blocking state and the user has to wait - * ~40 seconds for return after he presses the interrupt key. - * - * This has no negative speed impact as long as the blocking - * factor is set to a multiple of the track size of the floppy. - * The only values still useful today (2003) seem to be 18 for - * 3.5 inch high densitiy disks at 1440 kB and 15 for 5.25 inch - * high density disks at 1200 kB, so we specify these in the - * default file; consult fd(4) for other values, or give no - * values at all and autodetect them in the code above. - * - * Addendum: Use direct i/o for all block devices if a block - * size was specified or detected since the symptoms are - * generally the same as for floppy disks (e. g. with USB - * memory sticks). But don't use it when reading since it - * just slows down operation then. - */ - if ((mtstat.st_mode&S_IFMT) == S_IFBLK && bflag) { - int flags; - if ((flags = fcntl(mt, F_GETFL)) != -1) - fcntl(mt, F_SETFL, flags | O_DIRECT); - } -#endif /* __linux__ && O_DIRECT */ -} - -static void -domtstat(void) -{ - static int twice; - - if (fstat(mt, &mtstat) < 0) { - fprintf(stderr, "%s: cannot stat archive\n", progname); - done(1); - } - if ((mtstat.st_mode&S_IFMT) == S_IFIFO || - (mtstat.st_mode&S_IFMT) == S_IFSOCK) - Bflag = 1; -#if defined (__linux__) - if ((mtstat.st_mode&S_IFMT) == S_IFBLK) { - struct floppy_struct fs; - int blkbsz; - if (ioctl(mt, FDGETPRM, &fs) == 0) { - if (kflag == 0 && volsize == 0) - volsize = fs.size * FD_SECTSIZE(&fs); - if (bflag == 0 && nblock == 1 && twice == 0) { - if ((nblock=fs.sect*FD_SECTSIZE(&fs)/512)==0 || - nblock > NBLOCK) - nblock = 1; - else - bflag = B_AUTO; - } -#ifdef O_DIRECT - if (bflag && (tflag || xflag)) { - int flags; - if ((flags = fcntl(mt, F_GETFL)) != -1) - fcntl(mt, F_SETFL, flags | O_DIRECT); - } -#endif /* O_DIRECT */ -#ifdef BLKBSZGET - } else if (ioctl(mt, BLKBSZGET, &blkbsz) == 0) { - if (bflag == 0 && nblock == 1 && twice == 0 && - (blkbsz&0777) == 0) { - nblock = blkbsz >> 9; - bflag = B_AUTO; - } -#endif /* BLKBSZGET */ - } -#ifndef __G__ - } else if ((mtstat.st_mode&S_IFMT) == S_IFCHR) { - struct mtget mg; - if (ioctl(mt, MTIOCGET, &mg) == 0) - tapeblock = ((mg.mt_dsreg&MT_ST_BLKSIZE_MASK) - >> MT_ST_BLKSIZE_SHIFT); -#endif - } -#elif defined (__sun) - if ((mtstat.st_mode&S_IFMT) == S_IFCHR) { - struct mtdrivetype_request mr; - static struct mtdrivetype md; - mr.size = sizeof md; - mr.mtdtp = &md; - if (ioctl(mt, MTIOCGETDRIVETYPE, &mr) == 0) - tapeblock = md.bsize; - } -#elif defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) \ - || defined (__DragonFly__) || defined (__APPLE__) - if ((mtstat.st_mode&S_IFMT) == S_IFCHR) { - struct mtget mg; - if (ioctl(mt, MTIOCGET, &mg) == 0) - tapeblock = mg.mt_blksiz; - } -#elif defined (__hpux) || defined (_AIX) -#else /* SVR4.2MP */ - if ((mtstat.st_mode&S_IFMT) == S_IFCHR) { - struct blklen bl; - if (ioctl(mt, T_RDBLKLEN, &bl) == 0) - /* - * This ioctl is (apparently) not useful. It just - * returns 1 as minimum and 16M-1 as maximum size - * on DAT/DDS tape drives. - */ - tapeblock = 0; - } -#endif /* SVR4.2MP */ - if (tapeblock > 0) { - if (tapeblock % TBLOCK != 0) { - fprintf(stderr, "%s: tape blocksize error\n", - progname); - done(3); - } - tapeblock /= TBLOCK; - if (tapeblock > NBLOCK) - NBLOCK = tapeblock; -#if defined (__linux__) || defined (__sun) || defined (__FreeBSD__) || \ - defined (__NetBSD__) || defined (__OpenBSD__) || \ - defined (__DragonFly__) || defined (__APPLE__) - if (bflag == 0 && cflag && twice == 0) { - if (nblock == 1) { - if ((nblock = tapeblock) > NBLOCK) - nblock = 1; - else - bflag = B_AUTO; - } - } -#endif /* __linux__ || __sun || __FreeBSD__ || __NetBSD__ || __OpenBSD__ || - __DragonFly__ || __APPLE__ */ - } - if (twice == 0 && bflag == 0 && tapeblock < 0) { - if ((nblock = mtstat.st_blksize >> 9) > NBLOCK) - nblock = NBLOCK; - else if (nblock <= 0) - nblock = 1; - else if ((mtstat.st_mode&S_IFMT) != S_IFCHR) - bflag = B_AUTO; - } - twice = 1; - if (nblock > NBLOCK) - NBLOCK = nblock; - tbuf = bfalloc(sizeof *tbuf * NBLOCK); -} - -static int -checkzip(const char *bp, int rd) -{ - if (rd <= TBLOCK || (memcmp(&bp[257], "ustar", 5) && - memcmp(&bp[257], "\0\0\0\0\0", 5))) { - if (bp[0] == 'B' && bp[1] == 'Z' && bp[2] == 'h') - return redirect("bzip2", "-cd", rd); - else if (bp[0] == 0xFD && bp[1] == '7' && bp[2] == 'z' - && bp[3] == 'X' && bp[4] == 'Z' && bp[5] == 0x00) - return redirect("xz", "-cd", rd); - else if (bp[0] == '\37' && bp[1] == '\235') - return redirect("zcat", NULL, rd); - else if (bp[0] == '\37' && bp[1] == '\213') - return redirect("gzip", "-cd", rd); - } - maybezip = 0; - return -1; -} - -static int -redirect(const char *arg0, const char *arg1, int rd) -{ - int pd[2]; - - if (pipe(pd) < 0) - return -1; - switch (fork()) { - case 0: - if (tapeblock >= 0 || lseek(mt, -rd, SEEK_CUR) == (off_t)-1) { - int xpd[2]; - if (pipe(xpd) == 0 && fork() == 0) { - int wo, wt; - close(xpd[0]); - do { - wo = wt = 0; - do { - if ((wo = write(xpd[1], - tbuf + wt, - rd - wt)) - <= 0) { - if (errno == EINTR) - continue; - _exit(0); - } - wt += wo; - } while (wt < rd); - } while ((rd=mtread(tbuf, TBLOCK*nblock)) >= 0); - if (rd < 0) - fprintf(stderr, "%s: tape read error\n", - progname); - _exit(0); - } else { - close(xpd[1]); - dup2(xpd[0], 0); - close(xpd[0]); - } - } else - dup2(mt, 0); - close(mt); - dup2(pd[1], 1); - close(pd[0]); - close(pd[1]); - execlp(arg0, arg0, arg1, NULL); - fprintf(stderr, "%s: could not exec %s: %s\n", - progname, arg0, strerror(errno)); - _exit(0177); - /*NOTREACHED*/ - default: - Bflag = 1; - tapeblock = -1; - dup2(pd[0], mt); - close(pd[0]); - close(pd[1]); - domtstat(); - break; - case -1: - return -1; - } - return 1; -} - -#define CACHESIZE 16 - -static const char * -getuser(uid_t uid) -{ - static struct { - char *name; - uid_t uid; - } cache[CACHESIZE]; - static int last; - int i; - struct passwd *pwd; - const char *name; - - for (i = 0; i < CACHESIZE && cache[i].name; i++) - if (cache[i].uid == uid) - goto found; - if ((pwd = getpwuid(uid)) != NULL) - name = pwd->pw_name; - else - name = ""; - if (i >= CACHESIZE) { - if (last >= CACHESIZE) - last = 0; - i = last++; - } - if (cache[i].name) - free(cache[i].name); - cache[i].name = sstrdup(name); - cache[i].uid = uid; -found: return cache[i].name[0] ? cache[i].name : NULL; -} - -static const char * -getgroup(gid_t gid) -{ - static struct { - char *name; - gid_t gid; - } cache[CACHESIZE]; - static int last; - int i; - struct group *grp; - const char *name; - - for (i = 0; i < CACHESIZE && cache[i].name; i++) - if (cache[i].gid == gid) - goto found; - if ((grp = getgrgid(gid)) != NULL) - name = grp->gr_name; - else - name = ""; - if (i >= CACHESIZE) { - if (last >= CACHESIZE) - last = 0; - i = last++; - } - if (cache[i].name) - free(cache[i].name); - cache[i].name = sstrdup(name); - cache[i].gid = gid; -found: return cache[i].name[0] ? cache[i].name : NULL; -} - -static char * -sstrdup(const char *op) -{ - char *np; - - np = smalloc(strlen(op) + 1); - strcpy(np, op); - return np; -} - -static void -fromfile(const char *fn) -{ - struct iblok *ip; - char *line = NULL; - size_t size = 0, len; - - if ((ip = ib_open(fn, 0)) == NULL) { - fprintf(stderr, "%s: %s: %s\n", progname, fn, strerror(errno)); - goback(workdir); - } else { - while ((len = ib_getlin(ip, &line, &size, srealloc)) != 0) { - if (line[len-1] == '\n') - line[--len] = '\0'; - doarg(line); - goback(workdir); - } - ib_close(ip); - if (line) - free(line); - } -} - -static void -readexcl(const char *fn) -{ - FILE *fp; - int c, slash, s; - - if ((fp = fopen(fn, "r")) == NULL) { - fprintf(stderr, "%s: could not open %s: %s\n", progname, fn, - strerror(errno)); - done(1); - } - do { - if ((c = getc(fp)) != EOF && c != '\n') { - slash = 0; - s = fprintf(tfile, "X %0*lo %c", TIMSIZ, LONG_MAX, c); - while ((c = getc(fp)) != EOF && c != '\n') { - if (c == '/') { - slash = 1; - continue; - } else if (slash == 1) { - putc('/', tfile); - s++; - slash = 0; - } - putc(c, tfile); - s++; - } - putc('\n', tfile); - s++; - s *= 3; - if (s > N) - N = s; - } - } while (c != EOF); - fclose(fp); -} - -static void -creatfile(void) -{ - char tname[PATH_MAX+1]; - - if (tfile != NULL) - return; - settmp(tname, sizeof tname, "%s/tarXXXXXX"); - if ((tfile = fdopen(mkstemp(tname), "w")) == NULL) { - fprintf(stderr, "%s: cannot create temporary file (%s)\n", - progname, tname); - done(1); - } - unlink(tname); - fcntl(fileno(tfile), F_SETFD, FD_CLOEXEC); - fprintf(tfile, "\177 %0*lo !!!!!/!/!/!/!/!/!/!\n", TIMSIZ, 0L); -} - -static mode_t -cmask(struct stat *sp, int creation) -{ - mode_t mask = 07777; - - if (myuid != 0 || oflag || creation) { - if (sp->st_uid != myuid || sp->st_gid != mygid) { - mask &= ~(mode_t)S_ISUID; - if ((sp->st_mode&S_IFMT)!=S_IFDIR && sp->st_mode&0010) - mask &= ~(mode_t)S_ISGID; - if ((sp->st_mode&S_IFMT)==S_IFDIR && sp->st_gid!=mygid) - mask &= ~(mode_t)S_ISGID; - } - } - return mask; -} - -/* - * Top-down splay function for inode tree. - */ -static struct islot * -isplay(ino_t ino, struct islot *x) -{ - struct islot hdr; - struct islot *leftmax, *rightmin; - struct islot *y; - - hdr.left = hdr.right = inull; - leftmax = rightmin = &hdr; - inull->inum = ino; - while (ino != x->inum) { - if (ino < x->inum) { - if (ino < x->left->inum) { - y = x->left; - x->left = y->right; - y->right = x; - x = y; - } - if (x->left == inull) - break; - rightmin->left = x; - rightmin = x; - x = x->left; - } else { - if (ino > x->right->inum) { - y = x->right; - x->right = y->left; - y->left = x; - x = y; - } - if (x->right == inull) - break; - leftmax->right = x; - leftmax = x; - x = x->right; - } - } - leftmax->right = x->left; - rightmin->left = x->right; - x->left = hdr.right; - x->right = hdr.left; - inull->inum = !ino; - return x; -} - -/* - * Find the inode number ino. - */ -static struct islot * -ifind(ino_t ino, struct islot **it) -{ - if (*it == NULL) - return NULL; - *it = isplay(ino, *it); - return (*it)->inum == ino ? *it : NULL; -} - -/* - * Put ik into the tree. - */ -static void -iput(struct islot *ik, struct islot **it) -{ - if ((*it) == NULL) { - ik->left = ik->right = inull; - (*it) = ik; - } else { - /* ifind() is always called before */ - /*(*it) = isplay(ik->inum, (*it));*/ - if (ik->inum < (*it)->inum) { - ik->left = (*it)->left; - ik->right = (*it); - (*it)->left = inull; - (*it) = ik; - } else if ((*it)->inum < ik->inum) { - ik->right = (*it)->right; - ik->left = (*it); - (*it)->right = inull; - (*it) = ik; - } - } -} - -/* - * Find the device dev or add it to the device/inode forest if not - * already present. - */ -static struct dslot * -dfind(struct dslot **root, dev_t dev) -{ - struct dslot *ds, *dp; - - for (ds = *root, dp = NULL; ds; dp = ds, ds = ds->nextp) - if (ds->devnum == dev) - break; - if (ds == NULL) { - ds = scalloc(1, sizeof *ds); - ds->devnum = dev; - if (*root == NULL) - *root = ds; - else - dp->nextp = ds; - } - return ds; -} - -static char * -sequence(void) -{ - static char buf[25]; - static long long d; - - sprintf(buf, "%10.10lld", ++d); - return buf; -} - -static void -docomp(const char *name) -{ - int pd[2]; - struct stat ost; - - if (tapeblock >= 0) { - fprintf(stderr, "%s: Refusing to write compressed data " - "to tapes.\n", progname); - done(1); - } - if (pipe(pd) < 0) { - fprintf(stderr, "%s: pipe() failed\n", progname); - done(1); - } - switch (fork()) { - case 0: - dup2(mt, 1); - close(mt); - ftruncate(1, 0); - dup2(pd[0], 0); - close(pd[0]); - close(pd[1]); - execlp(name, name, "-c", NULL); - fprintf(stderr, "%s: could not exec %s\n", progname, name); - _exit(0177); - /*NOTREACHED*/ - case -1: - fprintf(stderr, "%s: could not fork(), try again later\n", - progname); - done(1); - /*NOTREACHED*/ - default: - dup2(pd[1], mt); - close(pd[0]); - close(pd[1]); - } - ost = mtstat; - domtstat(); - mtstat.st_dev = ost.st_dev; - mtstat.st_ino = ost.st_ino; -} - -static int -utf8(const char *cp) -{ - int c, n; - - while (*cp) if ((c = *cp++ & 0377) & 0200) { - if (c == (c & 037 | 0300)) - n = 1; - else if (c == (c & 017 | 0340)) - n = 2; - else if (c == (c & 07 | 0360)) - n = 3; - else if (c == (c & 03 | 0370)) - n = 4; - else if (c == (c & 01 | 0374)) - n = 5; - else - return 0; - while (n--) { - c = *cp++ & 0377; - if (c != (c & 077 | 0200)) - return 0; - } - } - return 1; -} - -static void -settmp(char *tbuf, size_t len, const char *template) -{ - char *tmpdir; - - if ((tmpdir = getenv("TMPDIR")) == NULL) - tmpdir = "/tmp"; - if (snprintf(tbuf, len, template, tmpdir) >= len) - snprintf(tbuf, len, template, "/tmp"); -} diff --git a/tar/tar.dfl b/tar/tar.dfl @@ -1,9 +0,0 @@ -# -# Sccsid @(#)tar.dfl 1.4 (gritter) 2/4/04 - -archive=/dev/rmt/c0s0 20 0 - -archive0=/dev/dsk/f0t 18 1440 -archive1=/dev/dsk/f1t 15 1200 -archive2=/dev/cdrom/c1t0d0 20 0 -archive3=/dev/cdrom/c1t0d1 20 0