blob: 48d6ce22e81741d2e80ea12dbc2e2b54857dfd2e [file] [log] [blame]
Erik Andersene49d5ec2000-02-08 19:58:47 +00001/* vi: set sw=4 ts=4: */
Eric Andersencc8ed391999-10-05 16:24:54 +00002/*
Erik Andersen68a9ea42000-04-04 18:39:50 +00003 * Mini tar implementation for busybox
Erik Andersen6acaa402000-03-26 14:03:20 +00004 *
Glenn L McGrath2e772ed2001-10-05 02:58:48 +00005 * Modifed to use common extraction code used by ar, cpio, dpkg-deb, dpkg
6 * Glenn McGrath <bug1@optushome.com.au>
7 *
Erik Andersen61677fe2000-04-13 01:18:56 +00008 * Note, that as of BusyBox-0.43, tar has been completely rewritten from the
9 * ground up. It still has remnents of the old code lying about, but it is
Eric Andersen77d92682001-05-23 20:32:09 +000010 * very different now (i.e., cleaner, less global variables, etc.)
Eric Andersenc4996011999-10-20 22:08:37 +000011 *
Eric Andersenbdfd0d72001-10-24 05:00:29 +000012 * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
Eric Andersen1d1d2f92002-04-13 08:31:59 +000013 * Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
Eric Andersen96bcfd31999-11-12 01:30:18 +000014 *
Erik Andersen6acaa402000-03-26 14:03:20 +000015 * Based in part in the tar implementation in sash
16 * Copyright (c) 1999 by David I. Bell
17 * Permission is granted to use, distribute, or modify this source,
18 * provided that this copyright notice remains intact.
19 * Permission to distribute sash derived code under the GPL has been granted.
20 *
Erik Andersen68a9ea42000-04-04 18:39:50 +000021 * Based in part on the tar implementation from busybox-0.28
Erik Andersen6acaa402000-03-26 14:03:20 +000022 * Copyright (C) 1995 Bruce Perens
23 * This is free software under the GNU General Public License.
24 *
Eric Andersenc4996011999-10-20 22:08:37 +000025 * This program is free software; you can redistribute it and/or modify
26 * it under the terms of the GNU General Public License as published by
27 * the Free Software Foundation; either version 2 of the License, or
28 * (at your option) any later version.
29 *
30 * This program is distributed in the hope that it will be useful,
31 * but WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
33 * General Public License for more details.
34 *
35 * You should have received a copy of the GNU General Public License
36 * along with this program; if not, write to the Free Software
37 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 *
Eric Andersencc8ed391999-10-05 16:24:54 +000039 */
40
Eric Andersencc8ed391999-10-05 16:24:54 +000041#include <fcntl.h>
Matt Kraai43c8c382000-09-04 16:51:55 +000042#include <getopt.h>
Glenn L McGrath2e772ed2001-10-05 02:58:48 +000043#include <search.h>
44#include <stdio.h>
Eric Andersened3ef502001-01-27 08:24:39 +000045#include <stdlib.h>
46#include <unistd.h>
Glenn L McGrath2e772ed2001-10-05 02:58:48 +000047#include <fnmatch.h>
48#include <string.h>
49#include <errno.h>
Robert Grieblf2f26e72002-07-23 22:05:47 +000050#include <signal.h>
51#include <sys/wait.h>
52#include <sys/socket.h>
Glenn L McGrathef0eab52001-10-25 14:49:48 +000053#include "unarchive.h"
Eric Andersencbe31da2001-02-20 06:14:08 +000054#include "busybox.h"
Eric Andersencc8ed391999-10-05 16:24:54 +000055
Eric Andersenbdfd0d72001-10-24 05:00:29 +000056#ifdef CONFIG_FEATURE_TAR_CREATE
Eric Andersencc8ed391999-10-05 16:24:54 +000057
Glenn L McGrath2e772ed2001-10-05 02:58:48 +000058/* Tar file constants */
Glenn L McGratha0ee8812002-08-22 13:44:08 +000059# define TAR_MAGIC "ustar" /* ustar and a null */
60# define TAR_VERSION " " /* Be compatable with GNU tar format */
Glenn L McGrath2e772ed2001-10-05 02:58:48 +000061
62# ifndef MAJOR
63# define MAJOR(dev) (((dev)>>8)&0xff)
64# define MINOR(dev) ((dev)&0xff)
65# endif
66
67static const int TAR_BLOCK_SIZE = 512;
68static const int TAR_MAGIC_LEN = 6;
69static const int TAR_VERSION_LEN = 2;
Eric Andersencc8ed391999-10-05 16:24:54 +000070
Erik Andersen298854f2000-03-23 01:09:18 +000071/* POSIX tar Header Block, from POSIX 1003.1-1990 */
Glenn L McGratha0ee8812002-08-22 13:44:08 +000072enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
73struct TarHeader { /* byte offset */
74 char name[NAME_SIZE]; /* 0-99 */
75 char mode[8]; /* 100-107 */
76 char uid[8]; /* 108-115 */
77 char gid[8]; /* 116-123 */
78 char size[12]; /* 124-135 */
79 char mtime[12]; /* 136-147 */
80 char chksum[8]; /* 148-155 */
81 char typeflag; /* 156-156 */
82 char linkname[NAME_SIZE]; /* 157-256 */
83 char magic[6]; /* 257-262 */
84 char version[2]; /* 263-264 */
85 char uname[32]; /* 265-296 */
86 char gname[32]; /* 297-328 */
87 char devmajor[8]; /* 329-336 */
88 char devminor[8]; /* 337-344 */
89 char prefix[155]; /* 345-499 */
90 char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */
Erik Andersen298854f2000-03-23 01:09:18 +000091};
92typedef struct TarHeader TarHeader;
Eric Andersencc8ed391999-10-05 16:24:54 +000093
Eric Andersen3d957c82000-12-07 00:34:58 +000094/*
95** writeTarFile(), writeFileToTarball(), and writeTarHeader() are
96** the only functions that deal with the HardLinkInfo structure.
97** Even these functions use the xxxHardLinkInfo() functions.
98*/
99typedef struct HardLinkInfo HardLinkInfo;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000100struct HardLinkInfo {
101 HardLinkInfo *next; /* Next entry in list */
102 dev_t dev; /* Device number */
103 ino_t ino; /* Inode number */
104 short linkCount; /* (Hard) Link Count */
105 char name[1]; /* Start of filename (must be last) */
Eric Andersen3d957c82000-12-07 00:34:58 +0000106};
107
Erik Andersen68a9ea42000-04-04 18:39:50 +0000108/* Some info to be carried along when creating a new tarball */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000109struct TarBallInfo {
110 char *fileName; /* File name of the tarball */
111 int tarFd; /* Open-for-write file descriptor
112 for the tarball */
113 struct stat statBuf; /* Stat info for the tarball, letting
114 us know the inode and device that the
115 tarball lives, so we can avoid trying
116 to include the tarball into itself */
117 int verboseFlag; /* Whether to print extra stuff or not */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000118 const llist_t *excludeList; /* List of files to not include */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000119 HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
120 HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
Erik Andersen68a9ea42000-04-04 18:39:50 +0000121};
122typedef struct TarBallInfo TarBallInfo;
123
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000124/* A nice enum with all the possible tar file content types */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000125enum TarFileType {
126 REGTYPE = '0', /* regular file */
127 REGTYPE0 = '\0', /* regular file (ancient bug compat) */
128 LNKTYPE = '1', /* hard link */
129 SYMTYPE = '2', /* symbolic link */
130 CHRTYPE = '3', /* character special */
131 BLKTYPE = '4', /* block special */
132 DIRTYPE = '5', /* directory */
133 FIFOTYPE = '6', /* FIFO special */
134 CONTTYPE = '7', /* reserved */
135 GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
136 GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000137};
138typedef enum TarFileType TarFileType;
Erik Andersen68a9ea42000-04-04 18:39:50 +0000139
Eric Andersen3d957c82000-12-07 00:34:58 +0000140/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000141static inline void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr, dev_t dev,
142 ino_t ino, short linkCount,
143 const char *name)
Eric Andersen3d957c82000-12-07 00:34:58 +0000144{
145 /* Note: hlInfoHeadPtr can never be NULL! */
146 HardLinkInfo *hlInfo;
147
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000148 hlInfo =
149 (HardLinkInfo *) xmalloc(sizeof(HardLinkInfo) + strlen(name) + 1);
Eric Andersen3d957c82000-12-07 00:34:58 +0000150 if (hlInfo) {
151 hlInfo->next = *hlInfoHeadPtr;
152 *hlInfoHeadPtr = hlInfo;
153 hlInfo->dev = dev;
154 hlInfo->ino = ino;
155 hlInfo->linkCount = linkCount;
156 strcpy(hlInfo->name, name);
157 }
158 return;
159}
160
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000161static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr)
Eric Andersen3d957c82000-12-07 00:34:58 +0000162{
163 HardLinkInfo *hlInfo = NULL;
164 HardLinkInfo *hlInfoNext = NULL;
165
166 if (hlInfoHeadPtr) {
167 hlInfo = *hlInfoHeadPtr;
168 while (hlInfo) {
169 hlInfoNext = hlInfo->next;
170 free(hlInfo);
171 hlInfo = hlInfoNext;
172 }
173 *hlInfoHeadPtr = NULL;
174 }
175 return;
176}
177
178/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000179static inline HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, dev_t dev,
180 ino_t ino)
Eric Andersen3d957c82000-12-07 00:34:58 +0000181{
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000182 while (hlInfo) {
Eric Andersen3d957c82000-12-07 00:34:58 +0000183 if ((ino == hlInfo->ino) && (dev == hlInfo->dev))
184 break;
185 hlInfo = hlInfo->next;
186 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000187 return (hlInfo);
Eric Andersen3d957c82000-12-07 00:34:58 +0000188}
189
Erik Andersen6acaa402000-03-26 14:03:20 +0000190/* Put an octal string into the specified buffer.
191 * The number is zero and space padded and possibly null padded.
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000192 * Returns TRUE if successful. */
193static int putOctal(char *cp, int len, long value)
Erik Andersen6acaa402000-03-26 14:03:20 +0000194{
195 int tempLength;
Erik Andersen6acaa402000-03-26 14:03:20 +0000196 char tempBuffer[32];
Erik Andersen5661fe02000-04-05 01:00:52 +0000197 char *tempString = tempBuffer;
Erik Andersen6acaa402000-03-26 14:03:20 +0000198
199 /* Create a string of the specified length with an initial space,
200 * leading zeroes and the octal number, and a trailing null. */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000201 sprintf(tempString, "%0*lo", len - 1, value);
Erik Andersen6acaa402000-03-26 14:03:20 +0000202
203 /* If the string is too large, suppress the leading space. */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000204 tempLength = strlen(tempString) + 1;
Erik Andersen6acaa402000-03-26 14:03:20 +0000205 if (tempLength > len) {
206 tempLength--;
207 tempString++;
208 }
209
210 /* If the string is still too large, suppress the trailing null. */
211 if (tempLength > len)
212 tempLength--;
213
214 /* If the string is still too large, fail. */
215 if (tempLength > len)
216 return FALSE;
217
218 /* Copy the string to the field. */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000219 memcpy(cp, tempString, len);
Erik Andersen6acaa402000-03-26 14:03:20 +0000220
221 return TRUE;
222}
223
Erik Andersen68a9ea42000-04-04 18:39:50 +0000224/* Write out a tar header for the specified file/directory/whatever */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000225static inline int writeTarHeader(struct TarBallInfo *tbInfo,
226 const char *header_name,
227 const char *real_name, struct stat *statbuf)
Erik Andersen6acaa402000-03-26 14:03:20 +0000228{
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000229 long chksum = 0;
Erik Andersen5661fe02000-04-05 01:00:52 +0000230 struct TarHeader header;
231 const unsigned char *cp = (const unsigned char *) &header;
232 ssize_t size = sizeof(struct TarHeader);
Erik Andersen3364d782000-03-28 00:58:14 +0000233
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000234 memset(&header, 0, size);
235
236 strncpy(header.name, header_name, sizeof(header.name));
Erik Andersenecd51242000-04-08 03:08:21 +0000237
Erik Andersen5661fe02000-04-05 01:00:52 +0000238 putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
239 putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
240 putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000241 putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */
Erik Andersen5661fe02000-04-05 01:00:52 +0000242 putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000243 strncpy(header.magic, TAR_MAGIC TAR_VERSION,
244 TAR_MAGIC_LEN + TAR_VERSION_LEN);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000245
Erik Andersen84e09e42000-04-08 20:58:35 +0000246 /* Enter the user and group names (default to root if it fails) */
Eric Andersen02e6ba92002-09-30 20:39:56 +0000247 if (my_getpwuid(header.uname, statbuf->st_uid) == NULL)
Erik Andersen84e09e42000-04-08 20:58:35 +0000248 strcpy(header.uname, "root");
Eric Andersen02e6ba92002-09-30 20:39:56 +0000249 if (my_getgrgid(header.gname, statbuf->st_gid) == NULL)
250 strcpy(header.gname, "root");
Erik Andersen5661fe02000-04-05 01:00:52 +0000251
Eric Andersen3d957c82000-12-07 00:34:58 +0000252 if (tbInfo->hlInfo) {
253 /* This is a hard link */
254 header.typeflag = LNKTYPE;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000255 strncpy(header.linkname, tbInfo->hlInfo->name,
256 sizeof(header.linkname));
Eric Andersen3d957c82000-12-07 00:34:58 +0000257 } else if (S_ISLNK(statbuf->st_mode)) {
Mark Whitley8a633262001-04-30 18:17:00 +0000258 char *lpath = xreadlink(real_name);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000259
260 if (!lpath) /* Already printed err msg inside xreadlink() */
261 return (FALSE);
262 header.typeflag = SYMTYPE;
263 strncpy(header.linkname, lpath, sizeof(header.linkname));
Mark Whitley8a633262001-04-30 18:17:00 +0000264 free(lpath);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000265 } else if (S_ISDIR(statbuf->st_mode)) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000266 header.typeflag = DIRTYPE;
267 strncat(header.name, "/", sizeof(header.name));
Erik Andersen68a9ea42000-04-04 18:39:50 +0000268 } else if (S_ISCHR(statbuf->st_mode)) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000269 header.typeflag = CHRTYPE;
270 putOctal(header.devmajor, sizeof(header.devmajor),
271 MAJOR(statbuf->st_rdev));
272 putOctal(header.devminor, sizeof(header.devminor),
273 MINOR(statbuf->st_rdev));
Erik Andersen68a9ea42000-04-04 18:39:50 +0000274 } else if (S_ISBLK(statbuf->st_mode)) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000275 header.typeflag = BLKTYPE;
276 putOctal(header.devmajor, sizeof(header.devmajor),
277 MAJOR(statbuf->st_rdev));
278 putOctal(header.devminor, sizeof(header.devminor),
279 MINOR(statbuf->st_rdev));
Erik Andersen68a9ea42000-04-04 18:39:50 +0000280 } else if (S_ISFIFO(statbuf->st_mode)) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000281 header.typeflag = FIFOTYPE;
Erik Andersen5661fe02000-04-05 01:00:52 +0000282 } else if (S_ISREG(statbuf->st_mode)) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000283 header.typeflag = REGTYPE;
Erik Andersen5661fe02000-04-05 01:00:52 +0000284 putOctal(header.size, sizeof(header.size), statbuf->st_size);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000285 } else {
Matt Kraaidd19c692001-01-31 19:00:21 +0000286 error_msg("%s: Unknown file type", real_name);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000287 return (FALSE);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000288 }
Erik Andersen68a9ea42000-04-04 18:39:50 +0000289
Eric Andersen77d92682001-05-23 20:32:09 +0000290 /* Calculate and store the checksum (i.e., the sum of all of the bytes of
Erik Andersen5661fe02000-04-05 01:00:52 +0000291 * the header). The checksum field must be filled with blanks for the
292 * calculation. The checksum field is formatted differently from the
293 * other fields: it has [6] digits, a null, then a space -- rather than
294 * digits, followed by a null like the other fields... */
295 memset(header.chksum, ' ', sizeof(header.chksum));
296 cp = (const unsigned char *) &header;
297 while (size-- > 0)
298 chksum += *cp++;
299 putOctal(header.chksum, 7, chksum);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000300
Erik Andersen5661fe02000-04-05 01:00:52 +0000301 /* Now write the header out to disk */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000302 if ((size =
303 full_write(tbInfo->tarFd, (char *) &header,
304 sizeof(struct TarHeader))) < 0) {
Eric Andersen71ae64b2002-10-10 04:20:21 +0000305 error_msg(io_error, real_name);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000306 return (FALSE);
Erik Andersen5661fe02000-04-05 01:00:52 +0000307 }
308 /* Pad the header up to the tar block size */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000309 for (; size < TAR_BLOCK_SIZE; size++) {
Erik Andersen5661fe02000-04-05 01:00:52 +0000310 write(tbInfo->tarFd, "\0", 1);
311 }
312 /* Now do the verbose thing (or not) */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000313
Robert Grieblf2f26e72002-07-23 22:05:47 +0000314 if (tbInfo->verboseFlag) {
Eric Andersenfdd51032000-08-02 18:48:26 +0000315 FILE *vbFd = stdout;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000316
317 if (tbInfo->verboseFlag == 2) /* If the archive goes to stdout, verbose to stderr */
Eric Andersenfdd51032000-08-02 18:48:26 +0000318 vbFd = stderr;
319 fprintf(vbFd, "%s\n", header.name);
320 }
Erik Andersen3364d782000-03-28 00:58:14 +0000321
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000322 return (TRUE);
Erik Andersen3364d782000-03-28 00:58:14 +0000323}
324
Eric Andersenc265b172001-10-27 03:20:00 +0000325# if defined CONFIG_FEATURE_TAR_EXCLUDE
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000326static inline int exclude_file(const llist_t *excluded_files, const char *file)
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000327{
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000328 if (excluded_files == NULL) {
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000329 return 0;
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000330 }
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000331
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000332 while (excluded_files) {
333 if (excluded_files->data[0] == '/') {
334 if (fnmatch(excluded_files->data, file,
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000335 FNM_PATHNAME | FNM_LEADING_DIR) == 0)
336 return 1;
337 } else {
338 const char *p;
339
340 for (p = file; p[0] != '\0'; p++) {
341 if ((p == file || p[-1] == '/') && p[0] != '/' &&
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000342 fnmatch(excluded_files->data, p,
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000343 FNM_PATHNAME | FNM_LEADING_DIR) == 0)
344 return 1;
345 }
346 }
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000347 excluded_files = excluded_files->link;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000348 }
349
350 return 0;
351}
Eric Andersenc265b172001-10-27 03:20:00 +0000352#endif
Erik Andersen3364d782000-03-28 00:58:14 +0000353
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000354static int writeFileToTarball(const char *fileName, struct stat *statbuf,
355 void *userData)
Erik Andersen3364d782000-03-28 00:58:14 +0000356{
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000357 struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
Matt Kraaie80a2632000-12-19 20:45:49 +0000358 const char *header_name;
Erik Andersen68a9ea42000-04-04 18:39:50 +0000359
Eric Andersen3d957c82000-12-07 00:34:58 +0000360 /*
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000361 ** Check to see if we are dealing with a hard link.
362 ** If so -
363 ** Treat the first occurance of a given dev/inode as a file while
364 ** treating any additional occurances as hard links. This is done
365 ** by adding the file information to the HardLinkInfo linked list.
366 */
Eric Andersen3d957c82000-12-07 00:34:58 +0000367 tbInfo->hlInfo = NULL;
368 if (statbuf->st_nlink > 1) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000369 tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf->st_dev,
370 statbuf->st_ino);
Eric Andersen3d957c82000-12-07 00:34:58 +0000371 if (tbInfo->hlInfo == NULL)
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000372 addHardLinkInfo(&tbInfo->hlInfoHead, statbuf->st_dev,
373 statbuf->st_ino, statbuf->st_nlink, fileName);
Eric Andersen3d957c82000-12-07 00:34:58 +0000374 }
375
Erik Andersen68a9ea42000-04-04 18:39:50 +0000376 /* It is against the rules to archive a socket */
377 if (S_ISSOCK(statbuf->st_mode)) {
Matt Kraaidd19c692001-01-31 19:00:21 +0000378 error_msg("%s: socket ignored", fileName);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000379 return (TRUE);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000380 }
381
382 /* It is a bad idea to store the archive we are in the process of creating,
383 * so check the device and inode to be sure that this particular file isn't
384 * the new tarball */
385 if (tbInfo->statBuf.st_dev == statbuf->st_dev &&
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000386 tbInfo->statBuf.st_ino == statbuf->st_ino) {
Matt Kraaidd19c692001-01-31 19:00:21 +0000387 error_msg("%s: file is the archive; skipping", fileName);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000388 return (TRUE);
Erik Andersen68a9ea42000-04-04 18:39:50 +0000389 }
390
Matt Kraaie80a2632000-12-19 20:45:49 +0000391 header_name = fileName;
392 while (header_name[0] == '/') {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000393 static int alreadyWarned = FALSE;
394
395 if (alreadyWarned == FALSE) {
Matt Kraaidd19c692001-01-31 19:00:21 +0000396 error_msg("Removing leading '/' from member names");
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000397 alreadyWarned = TRUE;
Matt Kraaia1f97752000-12-19 06:24:08 +0000398 }
Matt Kraaie80a2632000-12-19 20:45:49 +0000399 header_name++;
Matt Kraaia1f97752000-12-19 06:24:08 +0000400 }
401
Eric Andersen1b1cfde2000-09-24 00:54:37 +0000402 if (strlen(fileName) >= NAME_SIZE) {
Mark Whitleyf57c9442000-12-07 19:56:48 +0000403 error_msg(name_longer_than_foo, NAME_SIZE);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000404 return (TRUE);
Eric Andersen1b1cfde2000-09-24 00:54:37 +0000405 }
406
Matt Kraaie80a2632000-12-19 20:45:49 +0000407 if (header_name[0] == '\0')
Matt Kraaia1f97752000-12-19 06:24:08 +0000408 return TRUE;
409
Eric Andersenbdfd0d72001-10-24 05:00:29 +0000410# if defined CONFIG_FEATURE_TAR_EXCLUDE
Matt Kraaibe7499c2001-01-03 17:22:10 +0000411 if (exclude_file(tbInfo->excludeList, header_name)) {
412 return SKIP;
Matt Kraaia1f97752000-12-19 06:24:08 +0000413 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000414# endif /* CONFIG_FEATURE_TAR_EXCLUDE */
Matt Kraaia1f97752000-12-19 06:24:08 +0000415
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000416 if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
417 return (FALSE);
418 }
Erik Andersen5661fe02000-04-05 01:00:52 +0000419
420 /* Now, if the file is a regular file, copy it out to the tarball */
Eric Andersen3d957c82000-12-07 00:34:58 +0000421 if ((tbInfo->hlInfo == NULL)
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000422 && (S_ISREG(statbuf->st_mode))) {
423 int inputFileFd;
Erik Andersen5661fe02000-04-05 01:00:52 +0000424 char buffer[BUFSIZ];
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000425 ssize_t size = 0, readSize = 0;
Erik Andersen5661fe02000-04-05 01:00:52 +0000426
427 /* open the file we want to archive, and make sure all is well */
428 if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
Eric Andersen71ae64b2002-10-10 04:20:21 +0000429 perror_msg("%s: Cannot open", fileName);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000430 return (FALSE);
Erik Andersen5661fe02000-04-05 01:00:52 +0000431 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000432
Erik Andersen5661fe02000-04-05 01:00:52 +0000433 /* write the file to the archive */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000434 while ((size = full_read(inputFileFd, buffer, sizeof(buffer))) > 0) {
435 if (full_write(tbInfo->tarFd, buffer, size) != size) {
Erik Andersen5661fe02000-04-05 01:00:52 +0000436 /* Output file seems to have a problem */
Eric Andersen71ae64b2002-10-10 04:20:21 +0000437 error_msg(io_error, fileName);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000438 return (FALSE);
Erik Andersen5661fe02000-04-05 01:00:52 +0000439 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000440 readSize += size;
Erik Andersen5661fe02000-04-05 01:00:52 +0000441 }
442 if (size == -1) {
Eric Andersen71ae64b2002-10-10 04:20:21 +0000443 error_msg(io_error, fileName);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000444 return (FALSE);
Erik Andersen5661fe02000-04-05 01:00:52 +0000445 }
446 /* Pad the file up to the tar block size */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000447 for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
Erik Andersen5661fe02000-04-05 01:00:52 +0000448 write(tbInfo->tarFd, "\0", 1);
449 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000450 close(inputFileFd);
Erik Andersen5661fe02000-04-05 01:00:52 +0000451 }
Erik Andersen68a9ea42000-04-04 18:39:50 +0000452
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000453 return (TRUE);
Erik Andersen6acaa402000-03-26 14:03:20 +0000454}
455
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000456static inline int writeTarFile(const char *tarName, const int verboseFlag,
457 const llist_t *include, const llist_t *exclude, const int gzip)
Erik Andersen6acaa402000-03-26 14:03:20 +0000458{
Robert Grieblf2f26e72002-07-23 22:05:47 +0000459#ifdef CONFIG_FEATURE_TAR_GZIP
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000460 int gzipDataPipe[2] = { -1, -1 };
461 int gzipStatusPipe[2] = { -1, -1 };
Robert Grieblf2f26e72002-07-23 22:05:47 +0000462 pid_t gzipPid = 0;
463#endif
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000464
465 int errorFlag = FALSE;
Erik Andersen5661fe02000-04-05 01:00:52 +0000466 ssize_t size;
Erik Andersen68a9ea42000-04-04 18:39:50 +0000467 struct TarBallInfo tbInfo;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000468
Eric Andersen3d957c82000-12-07 00:34:58 +0000469 tbInfo.hlInfoHead = NULL;
Erik Andersen3364d782000-03-28 00:58:14 +0000470
471 /* Make sure there is at least one file to tar up. */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000472 if (include == NULL) {
Matt Kraaidd19c692001-01-31 19:00:21 +0000473 error_msg_and_die("Cowardly refusing to create an empty archive");
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000474 }
Erik Andersen6acaa402000-03-26 14:03:20 +0000475
476 /* Open the tar file for writing. */
Eric Andersen18921bd2002-10-26 10:05:37 +0000477 if (tarName == NULL || (tarName[0] == '-' && tarName[1] == '\0')) {
Erik Andersen68a9ea42000-04-04 18:39:50 +0000478 tbInfo.tarFd = fileno(stdout);
Robert Grieblf2f26e72002-07-23 22:05:47 +0000479 tbInfo.verboseFlag = verboseFlag ? 2 : 0;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000480 } else {
481 tbInfo.tarFd = open(tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
Robert Grieblf2f26e72002-07-23 22:05:47 +0000482 tbInfo.verboseFlag = verboseFlag ? 1 : 0;
483 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000484
Erik Andersen68a9ea42000-04-04 18:39:50 +0000485 if (tbInfo.tarFd < 0) {
Eric Andersen71ae64b2002-10-10 04:20:21 +0000486 perror_msg("%s: Cannot open", tarName);
Eric Andersen3d957c82000-12-07 00:34:58 +0000487 freeHardLinkInfo(&tbInfo.hlInfoHead);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000488 return (FALSE);
Erik Andersen6acaa402000-03-26 14:03:20 +0000489 }
Robert Grieblf2f26e72002-07-23 22:05:47 +0000490
Erik Andersen68a9ea42000-04-04 18:39:50 +0000491 /* Store the stat info for the tarball's file, so
492 * can avoid including the tarball into itself.... */
493 if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0)
Eric Andersen71ae64b2002-10-10 04:20:21 +0000494 error_msg_and_die(io_error, tarName);
Erik Andersen6acaa402000-03-26 14:03:20 +0000495
Robert Grieblf2f26e72002-07-23 22:05:47 +0000496#ifdef CONFIG_FEATURE_TAR_GZIP
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000497 if (gzip) {
498 if (socketpair(AF_UNIX, SOCK_STREAM, 0, gzipDataPipe) < 0
499 || pipe(gzipStatusPipe) < 0)
500 perror_msg_and_die("Failed to create gzip pipe");
Robert Grieblf2f26e72002-07-23 22:05:47 +0000501
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000502 signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
Robert Grieblf2f26e72002-07-23 22:05:47 +0000503
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000504 gzipPid = fork();
505
506 if (gzipPid == 0) {
507 dup2(gzipDataPipe[0], 0);
508 close(gzipDataPipe[1]);
509
510 if (tbInfo.tarFd != 1);
511 dup2(tbInfo.tarFd, 1);
512
513 close(gzipStatusPipe[0]);
514 fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */
515
516 execl("/bin/gzip", "gzip", "-f", 0);
517
518 write(gzipStatusPipe[1], "", 1);
519 close(gzipStatusPipe[1]);
520
521 exit(-1);
522 } else if (gzipPid > 0) {
523 close(gzipDataPipe[0]);
524 close(gzipStatusPipe[1]);
525
526 while (1) {
Robert Grieblf2f26e72002-07-23 22:05:47 +0000527 char buf;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000528
529 int n = read(gzipStatusPipe[0], &buf, 1);
530
531 if (n == 1)
532 error_msg_and_die("Could not exec gzip process"); /* socket was not closed => error */
533 else if ((n < 0) && (errno == EAGAIN || errno == EINTR))
534 continue; /* try it again */
535 break;
Robert Grieblf2f26e72002-07-23 22:05:47 +0000536 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000537 close(gzipStatusPipe[0]);
538
539 tbInfo.tarFd = gzipDataPipe[1];
540 } else {
541 perror_msg_and_die("Failed to fork gzip process");
Robert Grieblf2f26e72002-07-23 22:05:47 +0000542 }
543 }
544#endif
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000545
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000546 tbInfo.excludeList = exclude;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000547
Erik Andersen6acaa402000-03-26 14:03:20 +0000548 /* Read the directory/files and iterate over them one at a time */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000549 while (include) {
550 if (!recursive_action(include->data, TRUE, FALSE, FALSE,
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000551 writeFileToTarball, writeFileToTarball,
552 (void *) &tbInfo)) {
Erik Andersen68a9ea42000-04-04 18:39:50 +0000553 errorFlag = TRUE;
Erik Andersen3364d782000-03-28 00:58:14 +0000554 }
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000555 include = include->link;
Erik Andersen6acaa402000-03-26 14:03:20 +0000556 }
Erik Andersen5661fe02000-04-05 01:00:52 +0000557 /* Write two empty blocks to the end of the archive */
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000558 for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) {
Erik Andersen5661fe02000-04-05 01:00:52 +0000559 write(tbInfo.tarFd, "\0", 1);
560 }
Erik Andersen0817d132000-04-09 15:17:40 +0000561
562 /* To be pedantically correct, we would check if the tarball
Eric Andersen3c5ee9a2000-11-14 22:15:48 +0000563 * is smaller than 20 tar blocks, and pad it if it was smaller,
Erik Andersen0817d132000-04-09 15:17:40 +0000564 * but that isn't necessary for GNU tar interoperability, and
565 * so is considered a waste of space */
566
Erik Andersen68a9ea42000-04-04 18:39:50 +0000567 /* Hang up the tools, close up shop, head home */
Robert Grieblf2f26e72002-07-23 22:05:47 +0000568 close(tbInfo.tarFd);
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000569 if (errorFlag)
Matt Kraaidd19c692001-01-31 19:00:21 +0000570 error_msg("Error exit delayed from previous errors");
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000571
Eric Andersen3d957c82000-12-07 00:34:58 +0000572 freeHardLinkInfo(&tbInfo.hlInfoHead);
Robert Grieblf2f26e72002-07-23 22:05:47 +0000573
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000574#ifdef CONFIG_FEATURE_TAR_GZIP
575 if (gzip && gzipPid) {
576 if (waitpid(gzipPid, NULL, 0) == -1)
577 printf("Couldnt wait ?");
Robert Grieblf2f26e72002-07-23 22:05:47 +0000578 }
579#endif
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000580
Robert Grieblf2f26e72002-07-23 22:05:47 +0000581 return !errorFlag;
Erik Andersen6acaa402000-03-26 14:03:20 +0000582}
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000583#endif /* tar_create */
Erik Andersen6acaa402000-03-26 14:03:20 +0000584
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000585#ifdef CONFIG_FEATURE_TAR_EXCLUDE
586static const llist_t *append_file_list_to_list(const char *filename, const llist_t *list)
Glenn L McGrathd642a672001-10-13 06:54:45 +0000587{
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000588 FILE *src_stream = xfopen(filename, "r");
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000589 char *line;
590 while((line = get_line_from_file(src_stream)) != NULL) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000591 chomp(line);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000592 list = add_to_list(list, line);
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000593 }
594 fclose(src_stream);
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000595
596 return (list);
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000597}
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000598#endif
Erik Andersen6acaa402000-03-26 14:03:20 +0000599
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000600int tar_main(int argc, char **argv)
601{
Matt Kraai9fb38f62001-11-12 16:45:23 +0000602#ifdef CONFIG_FEATURE_TAR_GZIP
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000603 char (*get_header_ptr)(archive_handle_t *) = get_header_tar;
604#endif
605 archive_handle_t *tar_handle;
606 int opt;
607 char *base_dir = NULL;
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000608 char *tar_filename = "-";
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000609
610#ifdef CONFIG_FEATURE_TAR_CREATE
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000611 unsigned char tar_create = FALSE;
Matt Kraai9fb38f62001-11-12 16:45:23 +0000612#endif
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000613
Glenn L McGrath934805a2002-10-18 23:59:40 +0000614 /* Prepend '-' to the first argument if required */
615 if (argv[1][0] != '-') {
616 char *tmp = xmalloc(strlen(argv[1]) + 2);
617 tmp[0] = '-';
618 strcpy(tmp + 1, argv[1]);
619 argv[1] = tmp;
620 }
621
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000622 if (argc < 2) {
623 show_usage();
624 }
625
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000626 /* Initialise default values */
627 tar_handle = init_handle();
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000628 tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS;
629
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000630 while ((opt = getopt(argc, argv, "ctxT:X:C:f:Opvz")) != -1) {
631 switch (opt) {
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000632 /* One and only one of these is required */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000633#ifdef CONFIG_FEATURE_TAR_CREATE
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000634 case 'c':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000635 tar_create = TRUE;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000636 break;
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000637#endif
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000638 case 't':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000639 if ((tar_handle->action_header == header_list) ||
640 (tar_handle->action_header == header_verbose_list)) {
641 tar_handle->action_header = header_verbose_list;
642 } else {
643 tar_handle->action_header = header_list;
644 }
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000645 break;
646 case 'x':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000647 tar_handle->action_data = data_extract_all;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000648 break;
649
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000650 /* These are optional */
651 /* Exclude or Include files listed in <filename> */
Eric Andersenbdfd0d72001-10-24 05:00:29 +0000652#ifdef CONFIG_FEATURE_TAR_EXCLUDE
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000653 case 'X':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000654 tar_handle->reject =
655 append_file_list_to_list(optarg, tar_handle->reject);
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000656 break;
657#endif
658 case 'T':
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000659 /* by default a list is an include list */
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000660 break;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000661 case 'C': /* Change to dir <optarg> */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000662 base_dir = optarg;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000663 break;
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000664 case 'f': /* archive filename */
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000665 tar_filename = optarg;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000666 break;
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000667 case 'O': /* To stdout */
668 tar_handle->action_data = data_extract_to_stdout;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000669 break;
670 case 'p':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000671 tar_handle->flags |= ARCHIVE_PRESERVE_DATE;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000672 break;
673 case 'v':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000674 if ((tar_handle->action_header == header_list) ||
675 (tar_handle->action_header == header_verbose_list)) {
676 tar_handle->action_header = header_verbose_list;
677 } else {
678 tar_handle->action_header = header_list;
679 }
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000680 break;
Eric Andersenbdfd0d72001-10-24 05:00:29 +0000681#ifdef CONFIG_FEATURE_TAR_GZIP
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000682 case 'z':
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000683 get_header_ptr = get_header_tar_gz;
684 break;
685#endif
686#ifdef CONFIG_FEATURE_TAR_BZIP2
687 /* Not enabled yet */
688 case 'j':
689 archive_handle->archive_action = bunzip2;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000690 break;
691#endif
692 default:
693 show_usage();
694 }
695 }
696
Glenn L McGrath29833302002-10-06 23:25:23 +0000697 /* Check if we are reading from stdin */
698 if ((argv[optind]) && (*argv[optind] == '-')) {
699 /* Default is to read from stdin, so just skip to next arg */
Glenn L McGrath8132e932002-09-28 02:06:39 +0000700 optind++;
701 }
702
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000703 /* Setup an array of filenames to work with */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000704 /* TODO: This is the same as in ar, seperate function ? */
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000705 while (optind < argc) {
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000706#if 0
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000707 char absolute_path[PATH_MAX];
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000708 realpath(argv[optind], absolute_path);
709 tar_handle->accept = add_to_list(tar_handle->accept, absolute_path);
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000710#endif
711 tar_handle->accept = add_to_list(tar_handle->accept, argv[optind]);
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000712 optind++;
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000713
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000714 }
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000715
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000716 if ((tar_handle->accept) || (tar_handle->reject)) {
717 tar_handle->filter = filter_accept_reject_list;
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000718 }
Glenn L McGratha0ee8812002-08-22 13:44:08 +0000719
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000720 if ((base_dir) && (chdir(base_dir))) {
721 perror_msg_and_die("Couldnt chdir");
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000722 }
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000723
Eric Andersenbdfd0d72001-10-24 05:00:29 +0000724#ifdef CONFIG_FEATURE_TAR_CREATE
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000725 /* create an archive */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000726 if (tar_create == TRUE) {
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000727 int verboseFlag = FALSE;
Robert Grieblf2f26e72002-07-23 22:05:47 +0000728 int gzipFlag = FALSE;
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000729
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000730# ifdef CONFIG_FEATURE_TAR_GZIP
731 if (get_header_ptr == get_header_tar_gz) {
Robert Grieblf2f26e72002-07-23 22:05:47 +0000732 gzipFlag = TRUE;
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000733 }
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000734# endif /* CONFIG_FEATURE_TAR_GZIP */
735
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000736 if (tar_handle->action_header == header_verbose_list) {
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000737 verboseFlag = TRUE;
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000738 }
739 writeTarFile(tar_filename, verboseFlag, tar_handle->accept,
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000740 tar_handle->reject, gzipFlag);
741 } else
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000742#endif /* CONFIG_FEATURE_TAR_CREATE */
743 {
744 if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) {
745 tar_handle->src_fd = fileno(stdin);
746 } else {
747 tar_handle->src_fd = xopen(tar_filename, O_RDONLY);
748 }
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000749#ifdef CONFIG_FEATURE_TAR_GZIP
750 if (get_header_ptr == get_header_tar_gz) {
751 get_header_tar_gz(tar_handle);
752 } else
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000753#endif /* CONFIG_FEATURE_TAR_CREATE */
754
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000755 while (get_header_tar(tar_handle) == EXIT_SUCCESS);
Glenn L McGrathc5c1a8a2002-10-19 06:19:22 +0000756
757 /* Ckeck that every file that should have been extracted was */
758 while (tar_handle->accept) {
759 if (find_list_entry(tar_handle->reject, tar_handle->accept->data) == NULL) {
760 if (find_list_entry(tar_handle->passed, tar_handle->accept->data) == NULL) {
761 error_msg_and_die("%s: Not found in archive\n", tar_handle->accept->data);
762 }
763 }
764 tar_handle->accept = tar_handle->accept->link;
765 }
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000766 }
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000767
768#ifdef CONFIG_FEATURE_CLEAN_UP
Glenn L McGrath8132e932002-09-28 02:06:39 +0000769 if (tar_handle->src_fd != fileno(stdin)) {
770 close(tar_handle->src_fd);
771 }
Glenn L McGrath98f824a2002-10-19 00:46:35 +0000772#endif /* CONFIG_FEATURE_CLEAN_UP */
Glenn L McGrath7ca04f32002-09-25 02:47:48 +0000773
774 return(EXIT_SUCCESS);
Glenn L McGrath2e772ed2001-10-05 02:58:48 +0000775}