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756 lines
21 KiB
C
756 lines
21 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini tar implementation for busybox
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*
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* Modifed to use common extraction code used by ar, cpio, dpkg-deb, dpkg
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* Glenn McGrath <bug1@optushome.com.au>
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*
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* Note, that as of BusyBox-0.43, tar has been completely rewritten from the
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* ground up. It still has remnents of the old code lying about, but it is
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* very different now (i.e., cleaner, less global variables, etc.)
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*
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* Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
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* Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
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*
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* Based in part in the tar implementation in sash
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* Copyright (c) 1999 by David I. Bell
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* Permission is granted to use, distribute, or modify this source,
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* provided that this copyright notice remains intact.
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* Permission to distribute sash derived code under the GPL has been granted.
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*
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* Based in part on the tar implementation from busybox-0.28
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* Copyright (C) 1995 Bruce Perens
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* This is free software under the GNU General Public License.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <fcntl.h>
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#include <getopt.h>
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#include <search.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fnmatch.h>
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <sys/socket.h>
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#include "unarchive.h"
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#include "busybox.h"
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#ifdef CONFIG_FEATURE_TAR_CREATE
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/* Tar file constants */
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# define TAR_MAGIC "ustar" /* ustar and a null */
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# define TAR_VERSION " " /* Be compatable with GNU tar format */
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# ifndef MAJOR
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# define MAJOR(dev) (((dev)>>8)&0xff)
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# define MINOR(dev) ((dev)&0xff)
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# endif
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static const int TAR_BLOCK_SIZE = 512;
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static const int TAR_MAGIC_LEN = 6;
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static const int TAR_VERSION_LEN = 2;
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/* POSIX tar Header Block, from POSIX 1003.1-1990 */
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enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
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struct TarHeader { /* byte offset */
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char name[NAME_SIZE]; /* 0-99 */
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char mode[8]; /* 100-107 */
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char uid[8]; /* 108-115 */
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char gid[8]; /* 116-123 */
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char size[12]; /* 124-135 */
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char mtime[12]; /* 136-147 */
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char chksum[8]; /* 148-155 */
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char typeflag; /* 156-156 */
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char linkname[NAME_SIZE]; /* 157-256 */
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char magic[6]; /* 257-262 */
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char version[2]; /* 263-264 */
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char uname[32]; /* 265-296 */
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char gname[32]; /* 297-328 */
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char devmajor[8]; /* 329-336 */
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char devminor[8]; /* 337-344 */
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char prefix[155]; /* 345-499 */
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char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */
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};
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typedef struct TarHeader TarHeader;
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/*
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** writeTarFile(), writeFileToTarball(), and writeTarHeader() are
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** the only functions that deal with the HardLinkInfo structure.
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** Even these functions use the xxxHardLinkInfo() functions.
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*/
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typedef struct HardLinkInfo HardLinkInfo;
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struct HardLinkInfo {
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HardLinkInfo *next; /* Next entry in list */
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dev_t dev; /* Device number */
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ino_t ino; /* Inode number */
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short linkCount; /* (Hard) Link Count */
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char name[1]; /* Start of filename (must be last) */
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};
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/* Some info to be carried along when creating a new tarball */
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struct TarBallInfo {
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char *fileName; /* File name of the tarball */
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int tarFd; /* Open-for-write file descriptor
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for the tarball */
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struct stat statBuf; /* Stat info for the tarball, letting
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us know the inode and device that the
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tarball lives, so we can avoid trying
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to include the tarball into itself */
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int verboseFlag; /* Whether to print extra stuff or not */
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const llist_t *excludeList; /* List of files to not include */
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HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
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HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
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};
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typedef struct TarBallInfo TarBallInfo;
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/* A nice enum with all the possible tar file content types */
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enum TarFileType {
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REGTYPE = '0', /* regular file */
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REGTYPE0 = '\0', /* regular file (ancient bug compat) */
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LNKTYPE = '1', /* hard link */
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SYMTYPE = '2', /* symbolic link */
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CHRTYPE = '3', /* character special */
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BLKTYPE = '4', /* block special */
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DIRTYPE = '5', /* directory */
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FIFOTYPE = '6', /* FIFO special */
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CONTTYPE = '7', /* reserved */
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GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
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GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
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};
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typedef enum TarFileType TarFileType;
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/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
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static inline void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr, dev_t dev,
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ino_t ino, short linkCount,
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const char *name)
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{
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/* Note: hlInfoHeadPtr can never be NULL! */
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HardLinkInfo *hlInfo;
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hlInfo =
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(HardLinkInfo *) xmalloc(sizeof(HardLinkInfo) + strlen(name) + 1);
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if (hlInfo) {
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hlInfo->next = *hlInfoHeadPtr;
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*hlInfoHeadPtr = hlInfo;
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hlInfo->dev = dev;
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hlInfo->ino = ino;
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hlInfo->linkCount = linkCount;
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strcpy(hlInfo->name, name);
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}
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return;
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}
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static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr)
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{
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HardLinkInfo *hlInfo = NULL;
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HardLinkInfo *hlInfoNext = NULL;
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if (hlInfoHeadPtr) {
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hlInfo = *hlInfoHeadPtr;
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while (hlInfo) {
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hlInfoNext = hlInfo->next;
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free(hlInfo);
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hlInfo = hlInfoNext;
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}
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*hlInfoHeadPtr = NULL;
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}
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return;
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}
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/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
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static inline HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, dev_t dev,
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ino_t ino)
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{
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while (hlInfo) {
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if ((ino == hlInfo->ino) && (dev == hlInfo->dev))
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break;
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hlInfo = hlInfo->next;
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}
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return (hlInfo);
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}
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/* Put an octal string into the specified buffer.
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* The number is zero and space padded and possibly null padded.
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* Returns TRUE if successful. */
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static int putOctal(char *cp, int len, long value)
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{
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int tempLength;
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char tempBuffer[32];
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char *tempString = tempBuffer;
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/* Create a string of the specified length with an initial space,
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* leading zeroes and the octal number, and a trailing null. */
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sprintf(tempString, "%0*lo", len - 1, value);
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/* If the string is too large, suppress the leading space. */
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tempLength = strlen(tempString) + 1;
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if (tempLength > len) {
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tempLength--;
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tempString++;
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}
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/* If the string is still too large, suppress the trailing null. */
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if (tempLength > len)
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tempLength--;
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/* If the string is still too large, fail. */
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if (tempLength > len)
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return FALSE;
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/* Copy the string to the field. */
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memcpy(cp, tempString, len);
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return TRUE;
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}
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/* Write out a tar header for the specified file/directory/whatever */
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static inline int writeTarHeader(struct TarBallInfo *tbInfo,
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const char *header_name,
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const char *real_name, struct stat *statbuf)
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{
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long chksum = 0;
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struct TarHeader header;
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const unsigned char *cp = (const unsigned char *) &header;
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ssize_t size = sizeof(struct TarHeader);
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memset(&header, 0, size);
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strncpy(header.name, header_name, sizeof(header.name));
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putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
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putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
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putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
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putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */
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putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
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strncpy(header.magic, TAR_MAGIC TAR_VERSION,
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TAR_MAGIC_LEN + TAR_VERSION_LEN);
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/* Enter the user and group names (default to root if it fails) */
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my_getpwuid(header.uname, statbuf->st_uid);
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if (!*header.uname)
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strcpy(header.uname, "root");
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my_getgrgid(header.gname, statbuf->st_gid);
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if (!*header.uname)
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strcpy(header.uname, "root");
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if (tbInfo->hlInfo) {
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/* This is a hard link */
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header.typeflag = LNKTYPE;
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strncpy(header.linkname, tbInfo->hlInfo->name,
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sizeof(header.linkname));
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} else if (S_ISLNK(statbuf->st_mode)) {
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char *lpath = xreadlink(real_name);
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if (!lpath) /* Already printed err msg inside xreadlink() */
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return (FALSE);
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header.typeflag = SYMTYPE;
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strncpy(header.linkname, lpath, sizeof(header.linkname));
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free(lpath);
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} else if (S_ISDIR(statbuf->st_mode)) {
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header.typeflag = DIRTYPE;
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strncat(header.name, "/", sizeof(header.name));
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} else if (S_ISCHR(statbuf->st_mode)) {
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header.typeflag = CHRTYPE;
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putOctal(header.devmajor, sizeof(header.devmajor),
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MAJOR(statbuf->st_rdev));
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putOctal(header.devminor, sizeof(header.devminor),
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MINOR(statbuf->st_rdev));
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} else if (S_ISBLK(statbuf->st_mode)) {
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header.typeflag = BLKTYPE;
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putOctal(header.devmajor, sizeof(header.devmajor),
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MAJOR(statbuf->st_rdev));
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putOctal(header.devminor, sizeof(header.devminor),
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MINOR(statbuf->st_rdev));
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} else if (S_ISFIFO(statbuf->st_mode)) {
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header.typeflag = FIFOTYPE;
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} else if (S_ISREG(statbuf->st_mode)) {
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header.typeflag = REGTYPE;
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putOctal(header.size, sizeof(header.size), statbuf->st_size);
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} else {
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error_msg("%s: Unknown file type", real_name);
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return (FALSE);
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}
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/* Calculate and store the checksum (i.e., the sum of all of the bytes of
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* the header). The checksum field must be filled with blanks for the
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* calculation. The checksum field is formatted differently from the
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* other fields: it has [6] digits, a null, then a space -- rather than
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* digits, followed by a null like the other fields... */
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memset(header.chksum, ' ', sizeof(header.chksum));
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cp = (const unsigned char *) &header;
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while (size-- > 0)
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chksum += *cp++;
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putOctal(header.chksum, 7, chksum);
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/* Now write the header out to disk */
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if ((size =
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full_write(tbInfo->tarFd, (char *) &header,
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sizeof(struct TarHeader))) < 0) {
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error_msg(io_error, real_name, strerror(errno));
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return (FALSE);
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}
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/* Pad the header up to the tar block size */
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for (; size < TAR_BLOCK_SIZE; size++) {
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write(tbInfo->tarFd, "\0", 1);
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}
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/* Now do the verbose thing (or not) */
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if (tbInfo->verboseFlag) {
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FILE *vbFd = stdout;
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if (tbInfo->verboseFlag == 2) /* If the archive goes to stdout, verbose to stderr */
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vbFd = stderr;
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fprintf(vbFd, "%s\n", header.name);
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}
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return (TRUE);
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}
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# if defined CONFIG_FEATURE_TAR_EXCLUDE
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static inline int exclude_file(const llist_t *excluded_files, const char *file)
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{
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if (excluded_files == NULL) {
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return 0;
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}
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while (excluded_files) {
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if (excluded_files->data[0] == '/') {
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if (fnmatch(excluded_files->data, file,
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FNM_PATHNAME | FNM_LEADING_DIR) == 0)
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return 1;
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} else {
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const char *p;
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for (p = file; p[0] != '\0'; p++) {
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if ((p == file || p[-1] == '/') && p[0] != '/' &&
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fnmatch(excluded_files->data, p,
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FNM_PATHNAME | FNM_LEADING_DIR) == 0)
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return 1;
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}
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}
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excluded_files = excluded_files->link;
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}
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return 0;
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}
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#endif
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static int writeFileToTarball(const char *fileName, struct stat *statbuf,
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void *userData)
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{
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struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
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const char *header_name;
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/*
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** Check to see if we are dealing with a hard link.
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** If so -
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** Treat the first occurance of a given dev/inode as a file while
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** treating any additional occurances as hard links. This is done
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** by adding the file information to the HardLinkInfo linked list.
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*/
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tbInfo->hlInfo = NULL;
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if (statbuf->st_nlink > 1) {
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tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf->st_dev,
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statbuf->st_ino);
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if (tbInfo->hlInfo == NULL)
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addHardLinkInfo(&tbInfo->hlInfoHead, statbuf->st_dev,
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statbuf->st_ino, statbuf->st_nlink, fileName);
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}
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/* It is against the rules to archive a socket */
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if (S_ISSOCK(statbuf->st_mode)) {
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error_msg("%s: socket ignored", fileName);
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return (TRUE);
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}
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/* It is a bad idea to store the archive we are in the process of creating,
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* so check the device and inode to be sure that this particular file isn't
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* the new tarball */
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if (tbInfo->statBuf.st_dev == statbuf->st_dev &&
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tbInfo->statBuf.st_ino == statbuf->st_ino) {
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error_msg("%s: file is the archive; skipping", fileName);
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return (TRUE);
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}
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header_name = fileName;
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while (header_name[0] == '/') {
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static int alreadyWarned = FALSE;
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if (alreadyWarned == FALSE) {
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error_msg("Removing leading '/' from member names");
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alreadyWarned = TRUE;
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}
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header_name++;
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}
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if (strlen(fileName) >= NAME_SIZE) {
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error_msg(name_longer_than_foo, NAME_SIZE);
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return (TRUE);
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}
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if (header_name[0] == '\0')
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return TRUE;
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# if defined CONFIG_FEATURE_TAR_EXCLUDE
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if (exclude_file(tbInfo->excludeList, header_name)) {
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return SKIP;
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}
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# endif /* CONFIG_FEATURE_TAR_EXCLUDE */
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if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
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return (FALSE);
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}
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/* Now, if the file is a regular file, copy it out to the tarball */
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if ((tbInfo->hlInfo == NULL)
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&& (S_ISREG(statbuf->st_mode))) {
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int inputFileFd;
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char buffer[BUFSIZ];
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ssize_t size = 0, readSize = 0;
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/* open the file we want to archive, and make sure all is well */
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if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
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error_msg("%s: Cannot open: %s", fileName, strerror(errno));
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return (FALSE);
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}
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/* write the file to the archive */
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while ((size = full_read(inputFileFd, buffer, sizeof(buffer))) > 0) {
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if (full_write(tbInfo->tarFd, buffer, size) != size) {
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/* Output file seems to have a problem */
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error_msg(io_error, fileName, strerror(errno));
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return (FALSE);
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}
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readSize += size;
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}
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if (size == -1) {
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error_msg(io_error, fileName, strerror(errno));
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return (FALSE);
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}
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/* Pad the file up to the tar block size */
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for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
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write(tbInfo->tarFd, "\0", 1);
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}
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close(inputFileFd);
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}
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return (TRUE);
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}
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static inline int writeTarFile(const char *tarName, const int verboseFlag,
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const llist_t *include, const llist_t *exclude, const int gzip)
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{
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#ifdef CONFIG_FEATURE_TAR_GZIP
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int gzipDataPipe[2] = { -1, -1 };
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int gzipStatusPipe[2] = { -1, -1 };
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pid_t gzipPid = 0;
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#endif
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int errorFlag = FALSE;
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ssize_t size;
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struct TarBallInfo tbInfo;
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tbInfo.hlInfoHead = NULL;
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/* Make sure there is at least one file to tar up. */
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if (include == NULL) {
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error_msg_and_die("Cowardly refusing to create an empty archive");
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}
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/* Open the tar file for writing. */
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if (tarName == NULL) {
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tbInfo.tarFd = fileno(stdout);
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tbInfo.verboseFlag = verboseFlag ? 2 : 0;
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} else {
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tbInfo.tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
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tbInfo.verboseFlag = verboseFlag ? 1 : 0;
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}
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|
|
|
if (tbInfo.tarFd < 0) {
|
|
perror_msg("Error opening '%s'", tarName);
|
|
freeHardLinkInfo(&tbInfo.hlInfoHead);
|
|
return (FALSE);
|
|
}
|
|
|
|
/* Store the stat info for the tarball's file, so
|
|
* can avoid including the tarball into itself.... */
|
|
if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0)
|
|
error_msg_and_die(io_error, tarName, strerror(errno));
|
|
|
|
#ifdef CONFIG_FEATURE_TAR_GZIP
|
|
if (gzip) {
|
|
if (socketpair(AF_UNIX, SOCK_STREAM, 0, gzipDataPipe) < 0
|
|
|| pipe(gzipStatusPipe) < 0)
|
|
perror_msg_and_die("Failed to create gzip pipe");
|
|
|
|
signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
|
|
|
|
gzipPid = fork();
|
|
|
|
if (gzipPid == 0) {
|
|
dup2(gzipDataPipe[0], 0);
|
|
close(gzipDataPipe[1]);
|
|
|
|
if (tbInfo.tarFd != 1);
|
|
dup2(tbInfo.tarFd, 1);
|
|
|
|
close(gzipStatusPipe[0]);
|
|
fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */
|
|
|
|
execl("/bin/gzip", "gzip", "-f", 0);
|
|
|
|
write(gzipStatusPipe[1], "", 1);
|
|
close(gzipStatusPipe[1]);
|
|
|
|
exit(-1);
|
|
} else if (gzipPid > 0) {
|
|
close(gzipDataPipe[0]);
|
|
close(gzipStatusPipe[1]);
|
|
|
|
while (1) {
|
|
char buf;
|
|
|
|
int n = read(gzipStatusPipe[0], &buf, 1);
|
|
|
|
if (n == 1)
|
|
error_msg_and_die("Could not exec gzip process"); /* socket was not closed => error */
|
|
else if ((n < 0) && (errno == EAGAIN || errno == EINTR))
|
|
continue; /* try it again */
|
|
break;
|
|
}
|
|
close(gzipStatusPipe[0]);
|
|
|
|
tbInfo.tarFd = gzipDataPipe[1];
|
|
} else {
|
|
perror_msg_and_die("Failed to fork gzip process");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
tbInfo.excludeList = exclude;
|
|
|
|
/* Read the directory/files and iterate over them one at a time */
|
|
while (include) {
|
|
if (!recursive_action(include->data, TRUE, FALSE, FALSE,
|
|
writeFileToTarball, writeFileToTarball,
|
|
(void *) &tbInfo)) {
|
|
errorFlag = TRUE;
|
|
}
|
|
include = include->link;
|
|
}
|
|
/* Write two empty blocks to the end of the archive */
|
|
for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) {
|
|
write(tbInfo.tarFd, "\0", 1);
|
|
}
|
|
|
|
/* To be pedantically correct, we would check if the tarball
|
|
* is smaller than 20 tar blocks, and pad it if it was smaller,
|
|
* but that isn't necessary for GNU tar interoperability, and
|
|
* so is considered a waste of space */
|
|
|
|
/* Hang up the tools, close up shop, head home */
|
|
close(tbInfo.tarFd);
|
|
if (errorFlag)
|
|
error_msg("Error exit delayed from previous errors");
|
|
|
|
freeHardLinkInfo(&tbInfo.hlInfoHead);
|
|
|
|
#ifdef CONFIG_FEATURE_TAR_GZIP
|
|
if (gzip && gzipPid) {
|
|
if (waitpid(gzipPid, NULL, 0) == -1)
|
|
printf("Couldnt wait ?");
|
|
}
|
|
#endif
|
|
|
|
return !errorFlag;
|
|
}
|
|
#endif /* tar_create */
|
|
|
|
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
|
|
static const llist_t *append_file_list_to_list(const char *filename, const llist_t *list)
|
|
{
|
|
FILE *src_stream = xfopen(filename, "r");
|
|
while(1) {
|
|
char *line = get_line_from_file(src_stream);
|
|
if (line == NULL) {
|
|
break;
|
|
}
|
|
chomp(line);
|
|
list = add_to_list(list, line);
|
|
free(line);
|
|
}
|
|
fclose(src_stream);
|
|
|
|
return (list);
|
|
}
|
|
#endif
|
|
|
|
int tar_main(int argc, char **argv)
|
|
{
|
|
#ifdef CONFIG_FEATURE_TAR_GZIP
|
|
char (*get_header_ptr)(archive_handle_t *) = get_header_tar;
|
|
#endif
|
|
archive_handle_t *tar_handle;
|
|
int opt;
|
|
char *base_dir = NULL;
|
|
|
|
#ifdef CONFIG_FEATURE_TAR_CREATE
|
|
char *src_filename = NULL;
|
|
unsigned char tar_create = FALSE;
|
|
#endif
|
|
|
|
if (argc < 2) {
|
|
show_usage();
|
|
}
|
|
|
|
/* Initialise default values */
|
|
tar_handle = init_handle();
|
|
tar_handle->src_fd = fileno(stdin);
|
|
tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS;
|
|
|
|
while ((opt = getopt(argc, argv, "ctxT:X:C:f:Opvz")) != -1) {
|
|
switch (opt) {
|
|
/* One and only one of these is required */
|
|
#ifdef CONFIG_FEATURE_TAR_CREATE
|
|
case 'c':
|
|
tar_create = TRUE;
|
|
break;
|
|
#endif
|
|
case 't':
|
|
if ((tar_handle->action_header == header_list) ||
|
|
(tar_handle->action_header == header_verbose_list)) {
|
|
tar_handle->action_header = header_verbose_list;
|
|
} else {
|
|
tar_handle->action_header = header_list;
|
|
}
|
|
break;
|
|
case 'x':
|
|
tar_handle->action_data = data_extract_all;
|
|
break;
|
|
|
|
/* These are optional */
|
|
/* Exclude or Include files listed in <filename> */
|
|
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
|
|
case 'X':
|
|
tar_handle->reject =
|
|
append_file_list_to_list(optarg, tar_handle->reject);
|
|
break;
|
|
#endif
|
|
case 'T':
|
|
/* by default a list is an include list */
|
|
break;
|
|
case 'C': /* Change to dir <optarg> */
|
|
base_dir = optarg;
|
|
break;
|
|
case 'f': /* archive filename */
|
|
#ifdef CONFIG_FEATURE_TAR_CREATE
|
|
src_filename = optarg;
|
|
#endif
|
|
tar_handle->src_fd = xopen(optarg, O_RDONLY);
|
|
break;
|
|
case 'O': /* To stdout */
|
|
tar_handle->action_data = data_extract_to_stdout;
|
|
break;
|
|
case 'p':
|
|
tar_handle->flags |= ARCHIVE_PRESERVE_DATE;
|
|
break;
|
|
case 'v':
|
|
if ((tar_handle->action_header == header_list) ||
|
|
(tar_handle->action_header == header_verbose_list)) {
|
|
tar_handle->action_header = header_verbose_list;
|
|
} else {
|
|
tar_handle->action_header = header_list;
|
|
}
|
|
break;
|
|
#ifdef CONFIG_FEATURE_TAR_GZIP
|
|
case 'z':
|
|
get_header_ptr = get_header_tar_gz;
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_FEATURE_TAR_BZIP2
|
|
/* Not enabled yet */
|
|
case 'j':
|
|
archive_handle->archive_action = bunzip2;
|
|
break;
|
|
#endif
|
|
default:
|
|
show_usage();
|
|
}
|
|
}
|
|
|
|
if (*argv[optind] == '-') {
|
|
optind++;
|
|
}
|
|
|
|
/* Setup an array of filenames to work with */
|
|
/* TODO: This is the same as in ar, seperate function ? */
|
|
while (optind < argc) {
|
|
char absolute_path[PATH_MAX];
|
|
|
|
realpath(argv[optind], absolute_path);
|
|
tar_handle->accept = add_to_list(tar_handle->accept, absolute_path);
|
|
optind++;
|
|
#ifdef CONFIG_FEATURE_TAR_EXCLUDE
|
|
if (tar_handle->reject) {
|
|
tar_handle->filter = filter_accept_reject_list;
|
|
} else
|
|
#endif
|
|
tar_handle->filter = filter_accept_list;
|
|
}
|
|
|
|
if ((base_dir) && (chdir(base_dir))) {
|
|
perror_msg_and_die("Couldnt chdir");
|
|
}
|
|
|
|
#ifdef CONFIG_FEATURE_TAR_CREATE
|
|
/* create an archive */
|
|
if (tar_create == TRUE) {
|
|
int verboseFlag = FALSE;
|
|
int gzipFlag = FALSE;
|
|
|
|
# ifdef CONFIG_FEATURE_TAR_GZIP
|
|
if (get_header_ptr == get_header_tar_gz) {
|
|
gzipFlag = TRUE;
|
|
}
|
|
# endif
|
|
if (tar_handle->action_header == header_verbose_list) {
|
|
verboseFlag = TRUE;
|
|
}
|
|
writeTarFile(src_filename, verboseFlag, tar_handle->accept,
|
|
tar_handle->reject, gzipFlag);
|
|
} else
|
|
#endif
|
|
#ifdef CONFIG_FEATURE_TAR_GZIP
|
|
if (get_header_ptr == get_header_tar_gz) {
|
|
get_header_tar_gz(tar_handle);
|
|
} else
|
|
#endif
|
|
while (get_header_tar(tar_handle) == EXIT_SUCCESS);
|
|
|
|
#ifdef CONFIG_FEATURE_CLEAN_UP
|
|
if (tar_handle->src_fd != fileno(stdin)) {
|
|
close(tar_handle->src_fd);
|
|
}
|
|
#endif
|
|
|
|
return(EXIT_SUCCESS);
|
|
}
|