Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 2 | /* |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 3 | * Mini tar implementation for busybox |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 4 | * |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 5 | * Modifed to use common extraction code used by ar, cpio, dpkg-deb, dpkg |
| 6 | * Glenn McGrath <bug1@optushome.com.au> |
| 7 | * |
Erik Andersen | 61677fe | 2000-04-13 01:18:56 +0000 | [diff] [blame] | 8 | * 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 Andersen | 77d9268 | 2001-05-23 20:32:09 +0000 | [diff] [blame] | 10 | * very different now (i.e., cleaner, less global variables, etc.) |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 11 | * |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 12 | * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen |
Eric Andersen | 1d1d2f9 | 2002-04-13 08:31:59 +0000 | [diff] [blame] | 13 | * Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org> |
Eric Andersen | 96bcfd3 | 1999-11-12 01:30:18 +0000 | [diff] [blame] | 14 | * |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 15 | * 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 Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 21 | * Based in part on the tar implementation from busybox-0.28 |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 22 | * Copyright (C) 1995 Bruce Perens |
| 23 | * This is free software under the GNU General Public License. |
| 24 | * |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 25 | * 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 Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 39 | */ |
| 40 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 41 | #include <fcntl.h> |
Matt Kraai | 43c8c38 | 2000-09-04 16:51:55 +0000 | [diff] [blame] | 42 | #include <getopt.h> |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 43 | #include <search.h> |
| 44 | #include <stdio.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 45 | #include <stdlib.h> |
| 46 | #include <unistd.h> |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 47 | #include <fnmatch.h> |
| 48 | #include <string.h> |
| 49 | #include <errno.h> |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 50 | #include <signal.h> |
| 51 | #include <sys/wait.h> |
| 52 | #include <sys/socket.h> |
Glenn L McGrath | ef0eab5 | 2001-10-25 14:49:48 +0000 | [diff] [blame] | 53 | #include "unarchive.h" |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame] | 54 | #include "busybox.h" |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 55 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 56 | #ifdef CONFIG_FEATURE_TAR_CREATE |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 57 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 58 | /* Tar file constants */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 59 | # define TAR_MAGIC "ustar" /* ustar and a null */ |
| 60 | # define TAR_VERSION " " /* Be compatable with GNU tar format */ |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 61 | |
| 62 | # ifndef MAJOR |
| 63 | # define MAJOR(dev) (((dev)>>8)&0xff) |
| 64 | # define MINOR(dev) ((dev)&0xff) |
| 65 | # endif |
| 66 | |
| 67 | static const int TAR_BLOCK_SIZE = 512; |
| 68 | static const int TAR_MAGIC_LEN = 6; |
| 69 | static const int TAR_VERSION_LEN = 2; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 70 | |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 71 | /* POSIX tar Header Block, from POSIX 1003.1-1990 */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 72 | enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */ |
| 73 | struct 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 Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 91 | }; |
| 92 | typedef struct TarHeader TarHeader; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 93 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 94 | /* |
| 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 | */ |
| 99 | typedef struct HardLinkInfo HardLinkInfo; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 100 | struct 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 Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 106 | }; |
| 107 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 108 | /* Some info to be carried along when creating a new tarball */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 109 | struct 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 McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 118 | const llist_t *excludeList; /* List of files to not include */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 119 | HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */ |
| 120 | HardLinkInfo *hlInfo; /* Hard Link Info for the current file */ |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 121 | }; |
| 122 | typedef struct TarBallInfo TarBallInfo; |
| 123 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 124 | /* A nice enum with all the possible tar file content types */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 125 | enum 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 McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 137 | }; |
| 138 | typedef enum TarFileType TarFileType; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 139 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 140 | /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */ |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 141 | static inline void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr, |
| 142 | struct stat *statbuf, |
| 143 | const char *name) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 144 | { |
| 145 | /* Note: hlInfoHeadPtr can never be NULL! */ |
| 146 | HardLinkInfo *hlInfo; |
| 147 | |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 148 | hlInfo = (HardLinkInfo *) xmalloc(sizeof(HardLinkInfo) + strlen(name)); |
| 149 | hlInfo->next = *hlInfoHeadPtr; |
| 150 | *hlInfoHeadPtr = hlInfo; |
| 151 | hlInfo->dev = statbuf->st_dev; |
| 152 | hlInfo->ino = statbuf->st_ino; |
| 153 | hlInfo->linkCount = statbuf->st_nlink; |
| 154 | strcpy(hlInfo->name, name); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 155 | } |
| 156 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 157 | static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 158 | { |
| 159 | HardLinkInfo *hlInfo = NULL; |
| 160 | HardLinkInfo *hlInfoNext = NULL; |
| 161 | |
| 162 | if (hlInfoHeadPtr) { |
| 163 | hlInfo = *hlInfoHeadPtr; |
| 164 | while (hlInfo) { |
| 165 | hlInfoNext = hlInfo->next; |
| 166 | free(hlInfo); |
| 167 | hlInfo = hlInfoNext; |
| 168 | } |
| 169 | *hlInfoHeadPtr = NULL; |
| 170 | } |
| 171 | return; |
| 172 | } |
| 173 | |
| 174 | /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */ |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 175 | static inline HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, struct stat *statbuf) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 176 | { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 177 | while (hlInfo) { |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 178 | if ((statbuf->st_ino == hlInfo->ino) && (statbuf->st_dev == hlInfo->dev)) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 179 | break; |
| 180 | hlInfo = hlInfo->next; |
| 181 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 182 | return (hlInfo); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 185 | /* Put an octal string into the specified buffer. |
| 186 | * The number is zero and space padded and possibly null padded. |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 187 | * Returns TRUE if successful. */ |
| 188 | static int putOctal(char *cp, int len, long value) |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 189 | { |
| 190 | int tempLength; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 191 | char tempBuffer[32]; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 192 | char *tempString = tempBuffer; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 193 | |
| 194 | /* Create a string of the specified length with an initial space, |
| 195 | * leading zeroes and the octal number, and a trailing null. */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 196 | sprintf(tempString, "%0*lo", len - 1, value); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 197 | |
| 198 | /* If the string is too large, suppress the leading space. */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 199 | tempLength = strlen(tempString) + 1; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 200 | if (tempLength > len) { |
| 201 | tempLength--; |
| 202 | tempString++; |
| 203 | } |
| 204 | |
| 205 | /* If the string is still too large, suppress the trailing null. */ |
| 206 | if (tempLength > len) |
| 207 | tempLength--; |
| 208 | |
| 209 | /* If the string is still too large, fail. */ |
| 210 | if (tempLength > len) |
| 211 | return FALSE; |
| 212 | |
| 213 | /* Copy the string to the field. */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 214 | memcpy(cp, tempString, len); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 215 | |
| 216 | return TRUE; |
| 217 | } |
| 218 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 219 | /* Write out a tar header for the specified file/directory/whatever */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 220 | static inline int writeTarHeader(struct TarBallInfo *tbInfo, |
| 221 | const char *header_name, |
| 222 | const char *real_name, struct stat *statbuf) |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 223 | { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 224 | long chksum = 0; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 225 | struct TarHeader header; |
| 226 | const unsigned char *cp = (const unsigned char *) &header; |
| 227 | ssize_t size = sizeof(struct TarHeader); |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 228 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 229 | memset(&header, 0, size); |
| 230 | |
| 231 | strncpy(header.name, header_name, sizeof(header.name)); |
Erik Andersen | ecd5124 | 2000-04-08 03:08:21 +0000 | [diff] [blame] | 232 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 233 | putOctal(header.mode, sizeof(header.mode), statbuf->st_mode); |
| 234 | putOctal(header.uid, sizeof(header.uid), statbuf->st_uid); |
| 235 | putOctal(header.gid, sizeof(header.gid), statbuf->st_gid); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 236 | putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */ |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 237 | putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 238 | strncpy(header.magic, TAR_MAGIC TAR_VERSION, |
| 239 | TAR_MAGIC_LEN + TAR_VERSION_LEN); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 240 | |
Erik Andersen | 84e09e4 | 2000-04-08 20:58:35 +0000 | [diff] [blame] | 241 | /* Enter the user and group names (default to root if it fails) */ |
Eric Andersen | 02e6ba9 | 2002-09-30 20:39:56 +0000 | [diff] [blame] | 242 | if (my_getpwuid(header.uname, statbuf->st_uid) == NULL) |
Erik Andersen | 84e09e4 | 2000-04-08 20:58:35 +0000 | [diff] [blame] | 243 | strcpy(header.uname, "root"); |
Eric Andersen | 02e6ba9 | 2002-09-30 20:39:56 +0000 | [diff] [blame] | 244 | if (my_getgrgid(header.gname, statbuf->st_gid) == NULL) |
| 245 | strcpy(header.gname, "root"); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 246 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 247 | if (tbInfo->hlInfo) { |
| 248 | /* This is a hard link */ |
| 249 | header.typeflag = LNKTYPE; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 250 | strncpy(header.linkname, tbInfo->hlInfo->name, |
| 251 | sizeof(header.linkname)); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 252 | } else if (S_ISLNK(statbuf->st_mode)) { |
Mark Whitley | 8a63326 | 2001-04-30 18:17:00 +0000 | [diff] [blame] | 253 | char *lpath = xreadlink(real_name); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 254 | |
| 255 | if (!lpath) /* Already printed err msg inside xreadlink() */ |
| 256 | return (FALSE); |
| 257 | header.typeflag = SYMTYPE; |
| 258 | strncpy(header.linkname, lpath, sizeof(header.linkname)); |
Mark Whitley | 8a63326 | 2001-04-30 18:17:00 +0000 | [diff] [blame] | 259 | free(lpath); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 260 | } else if (S_ISDIR(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 261 | header.typeflag = DIRTYPE; |
| 262 | strncat(header.name, "/", sizeof(header.name)); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 263 | } else if (S_ISCHR(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 264 | header.typeflag = CHRTYPE; |
| 265 | putOctal(header.devmajor, sizeof(header.devmajor), |
| 266 | MAJOR(statbuf->st_rdev)); |
| 267 | putOctal(header.devminor, sizeof(header.devminor), |
| 268 | MINOR(statbuf->st_rdev)); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 269 | } else if (S_ISBLK(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 270 | header.typeflag = BLKTYPE; |
| 271 | putOctal(header.devmajor, sizeof(header.devmajor), |
| 272 | MAJOR(statbuf->st_rdev)); |
| 273 | putOctal(header.devminor, sizeof(header.devminor), |
| 274 | MINOR(statbuf->st_rdev)); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 275 | } else if (S_ISFIFO(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 276 | header.typeflag = FIFOTYPE; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 277 | } else if (S_ISREG(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 278 | header.typeflag = REGTYPE; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 279 | putOctal(header.size, sizeof(header.size), statbuf->st_size); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 280 | } else { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 281 | bb_error_msg("%s: Unknown file type", real_name); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 282 | return (FALSE); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 283 | } |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 284 | |
Eric Andersen | 77d9268 | 2001-05-23 20:32:09 +0000 | [diff] [blame] | 285 | /* Calculate and store the checksum (i.e., the sum of all of the bytes of |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 286 | * the header). The checksum field must be filled with blanks for the |
| 287 | * calculation. The checksum field is formatted differently from the |
| 288 | * other fields: it has [6] digits, a null, then a space -- rather than |
| 289 | * digits, followed by a null like the other fields... */ |
| 290 | memset(header.chksum, ' ', sizeof(header.chksum)); |
| 291 | cp = (const unsigned char *) &header; |
| 292 | while (size-- > 0) |
| 293 | chksum += *cp++; |
| 294 | putOctal(header.chksum, 7, chksum); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 295 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 296 | /* Now write the header out to disk */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 297 | if ((size = |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 298 | bb_full_write(tbInfo->tarFd, (char *) &header, |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 299 | sizeof(struct TarHeader))) < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 300 | bb_error_msg(bb_msg_io_error, real_name); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 301 | return (FALSE); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 302 | } |
| 303 | /* Pad the header up to the tar block size */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 304 | for (; size < TAR_BLOCK_SIZE; size++) { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 305 | write(tbInfo->tarFd, "\0", 1); |
| 306 | } |
| 307 | /* Now do the verbose thing (or not) */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 308 | |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 309 | if (tbInfo->verboseFlag) { |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 310 | FILE *vbFd = stdout; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 311 | |
| 312 | if (tbInfo->verboseFlag == 2) /* If the archive goes to stdout, verbose to stderr */ |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 313 | vbFd = stderr; |
| 314 | fprintf(vbFd, "%s\n", header.name); |
| 315 | } |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 316 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 317 | return (TRUE); |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 318 | } |
| 319 | |
Eric Andersen | c265b17 | 2001-10-27 03:20:00 +0000 | [diff] [blame] | 320 | # if defined CONFIG_FEATURE_TAR_EXCLUDE |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 321 | static inline int exclude_file(const llist_t *excluded_files, const char *file) |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 322 | { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 323 | if (excluded_files == NULL) { |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 324 | return 0; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 325 | } |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 326 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 327 | while (excluded_files) { |
| 328 | if (excluded_files->data[0] == '/') { |
| 329 | if (fnmatch(excluded_files->data, file, |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 330 | FNM_PATHNAME | FNM_LEADING_DIR) == 0) |
| 331 | return 1; |
| 332 | } else { |
| 333 | const char *p; |
| 334 | |
| 335 | for (p = file; p[0] != '\0'; p++) { |
| 336 | if ((p == file || p[-1] == '/') && p[0] != '/' && |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 337 | fnmatch(excluded_files->data, p, |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 338 | FNM_PATHNAME | FNM_LEADING_DIR) == 0) |
| 339 | return 1; |
| 340 | } |
| 341 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 342 | excluded_files = excluded_files->link; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | return 0; |
| 346 | } |
Eric Andersen | c265b17 | 2001-10-27 03:20:00 +0000 | [diff] [blame] | 347 | #endif |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 348 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 349 | static int writeFileToTarball(const char *fileName, struct stat *statbuf, |
| 350 | void *userData) |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 351 | { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 352 | struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData; |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 353 | const char *header_name; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 354 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 355 | /* |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 356 | ** Check to see if we are dealing with a hard link. |
| 357 | ** If so - |
| 358 | ** Treat the first occurance of a given dev/inode as a file while |
| 359 | ** treating any additional occurances as hard links. This is done |
| 360 | ** by adding the file information to the HardLinkInfo linked list. |
| 361 | */ |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 362 | tbInfo->hlInfo = NULL; |
| 363 | if (statbuf->st_nlink > 1) { |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 364 | tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 365 | if (tbInfo->hlInfo == NULL) |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 366 | addHardLinkInfo(&tbInfo->hlInfoHead, statbuf, fileName); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 367 | } |
| 368 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 369 | /* It is against the rules to archive a socket */ |
| 370 | if (S_ISSOCK(statbuf->st_mode)) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 371 | bb_error_msg("%s: socket ignored", fileName); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 372 | return (TRUE); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | /* It is a bad idea to store the archive we are in the process of creating, |
| 376 | * so check the device and inode to be sure that this particular file isn't |
| 377 | * the new tarball */ |
| 378 | if (tbInfo->statBuf.st_dev == statbuf->st_dev && |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 379 | tbInfo->statBuf.st_ino == statbuf->st_ino) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 380 | bb_error_msg("%s: file is the archive; skipping", fileName); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 381 | return (TRUE); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 382 | } |
| 383 | |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 384 | header_name = fileName; |
| 385 | while (header_name[0] == '/') { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 386 | static int alreadyWarned = FALSE; |
| 387 | |
| 388 | if (alreadyWarned == FALSE) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 389 | bb_error_msg("Removing leading '/' from member names"); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 390 | alreadyWarned = TRUE; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 391 | } |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 392 | header_name++; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 393 | } |
| 394 | |
Eric Andersen | 1b1cfde | 2000-09-24 00:54:37 +0000 | [diff] [blame] | 395 | if (strlen(fileName) >= NAME_SIZE) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 396 | bb_error_msg(bb_msg_name_longer_than_foo, NAME_SIZE); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 397 | return (TRUE); |
Eric Andersen | 1b1cfde | 2000-09-24 00:54:37 +0000 | [diff] [blame] | 398 | } |
| 399 | |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 400 | if (header_name[0] == '\0') |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 401 | return TRUE; |
| 402 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 403 | # if defined CONFIG_FEATURE_TAR_EXCLUDE |
Matt Kraai | be7499c | 2001-01-03 17:22:10 +0000 | [diff] [blame] | 404 | if (exclude_file(tbInfo->excludeList, header_name)) { |
| 405 | return SKIP; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 406 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 407 | # endif /* CONFIG_FEATURE_TAR_EXCLUDE */ |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 408 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 409 | if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) { |
| 410 | return (FALSE); |
| 411 | } |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 412 | |
| 413 | /* Now, if the file is a regular file, copy it out to the tarball */ |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 414 | if ((tbInfo->hlInfo == NULL) |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 415 | && (S_ISREG(statbuf->st_mode))) { |
| 416 | int inputFileFd; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 417 | char buffer[BUFSIZ]; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 418 | ssize_t size = 0, readSize = 0; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 419 | |
| 420 | /* open the file we want to archive, and make sure all is well */ |
| 421 | if ((inputFileFd = open(fileName, O_RDONLY)) < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 422 | bb_perror_msg("%s: Cannot open", fileName); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 423 | return (FALSE); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 424 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 425 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 426 | /* write the file to the archive */ |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 427 | while ((size = bb_full_read(inputFileFd, buffer, sizeof(buffer))) > 0) { |
| 428 | if (bb_full_write(tbInfo->tarFd, buffer, size) != size) { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 429 | /* Output file seems to have a problem */ |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 430 | bb_error_msg(bb_msg_io_error, fileName); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 431 | return (FALSE); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 432 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 433 | readSize += size; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 434 | } |
| 435 | if (size == -1) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 436 | bb_error_msg(bb_msg_io_error, fileName); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 437 | return (FALSE); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 438 | } |
| 439 | /* Pad the file up to the tar block size */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 440 | for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 441 | write(tbInfo->tarFd, "\0", 1); |
| 442 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 443 | close(inputFileFd); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 444 | } |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 445 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 446 | return (TRUE); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 447 | } |
| 448 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 449 | static inline int writeTarFile(const char *tarName, const int verboseFlag, |
| 450 | const llist_t *include, const llist_t *exclude, const int gzip) |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 451 | { |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 452 | #ifdef CONFIG_FEATURE_TAR_GZIP |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 453 | int gzipDataPipe[2] = { -1, -1 }; |
| 454 | int gzipStatusPipe[2] = { -1, -1 }; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 455 | pid_t gzipPid = 0; |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 456 | volatile int vfork_exec_errno = 0; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 457 | #endif |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 458 | |
| 459 | int errorFlag = FALSE; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 460 | ssize_t size; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 461 | struct TarBallInfo tbInfo; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 462 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 463 | tbInfo.hlInfoHead = NULL; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 464 | |
| 465 | /* Make sure there is at least one file to tar up. */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 466 | if (include == NULL) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 467 | bb_error_msg_and_die("Cowardly refusing to create an empty archive"); |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 468 | } |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 469 | |
| 470 | /* Open the tar file for writing. */ |
Eric Andersen | 18921bd | 2002-10-26 10:05:37 +0000 | [diff] [blame] | 471 | if (tarName == NULL || (tarName[0] == '-' && tarName[1] == '\0')) { |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 472 | tbInfo.tarFd = fileno(stdout); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 473 | tbInfo.verboseFlag = verboseFlag ? 2 : 0; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 474 | } else { |
Glenn L McGrath | 35a5b08 | 2003-04-21 10:07:48 +0000 | [diff] [blame] | 475 | unlink(tarName); |
| 476 | tbInfo.tarFd = open(tarName, O_WRONLY | O_CREAT | O_EXCL, 0644); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 477 | tbInfo.verboseFlag = verboseFlag ? 1 : 0; |
| 478 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 479 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 480 | if (tbInfo.tarFd < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 481 | bb_perror_msg("%s: Cannot open", tarName); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 482 | freeHardLinkInfo(&tbInfo.hlInfoHead); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 483 | return (FALSE); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 484 | } |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 485 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 486 | /* Store the stat info for the tarball's file, so |
| 487 | * can avoid including the tarball into itself.... */ |
| 488 | if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 489 | bb_error_msg_and_die(bb_msg_io_error, tarName); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 490 | |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 491 | #ifdef CONFIG_FEATURE_TAR_GZIP |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 492 | if (gzip) { |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 493 | if (pipe(gzipDataPipe) < 0 || pipe(gzipStatusPipe) < 0) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 494 | bb_perror_msg_and_die("Failed to create gzip pipe"); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 495 | } |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 496 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 497 | signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */ |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 498 | |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 499 | # if __GNUC__ |
| 500 | /* Avoid vfork clobbering */ |
| 501 | (void) &include; |
| 502 | (void) &errorFlag; |
| 503 | # endif |
| 504 | |
| 505 | gzipPid = vfork(); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 506 | |
| 507 | if (gzipPid == 0) { |
| 508 | dup2(gzipDataPipe[0], 0); |
| 509 | close(gzipDataPipe[1]); |
| 510 | |
| 511 | if (tbInfo.tarFd != 1); |
| 512 | dup2(tbInfo.tarFd, 1); |
| 513 | |
| 514 | close(gzipStatusPipe[0]); |
| 515 | fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */ |
| 516 | |
| 517 | execl("/bin/gzip", "gzip", "-f", 0); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 518 | vfork_exec_errno = errno; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 519 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 520 | close(gzipStatusPipe[1]); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 521 | exit(-1); |
| 522 | } else if (gzipPid > 0) { |
| 523 | close(gzipDataPipe[0]); |
| 524 | close(gzipStatusPipe[1]); |
| 525 | |
| 526 | while (1) { |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 527 | char buf; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 528 | |
| 529 | int n = read(gzipStatusPipe[0], &buf, 1); |
| 530 | |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 531 | if (n == 0 && vfork_exec_errno != 0) { |
| 532 | errno = vfork_exec_errno; |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 533 | bb_perror_msg_and_die("Could not exec gzip process"); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 534 | } else if ((n < 0) && (errno == EAGAIN || errno == EINTR)) |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 535 | continue; /* try it again */ |
| 536 | break; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 537 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 538 | close(gzipStatusPipe[0]); |
| 539 | |
| 540 | tbInfo.tarFd = gzipDataPipe[1]; |
| 541 | } else { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 542 | bb_perror_msg_and_die("Failed to vfork gzip process"); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 543 | } |
| 544 | } |
| 545 | #endif |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 546 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 547 | tbInfo.excludeList = exclude; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 548 | |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 549 | /* Read the directory/files and iterate over them one at a time */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 550 | while (include) { |
| 551 | if (!recursive_action(include->data, TRUE, FALSE, FALSE, |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 552 | writeFileToTarball, writeFileToTarball, |
| 553 | (void *) &tbInfo)) { |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 554 | errorFlag = TRUE; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 555 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 556 | include = include->link; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 557 | } |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 558 | /* Write two empty blocks to the end of the archive */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 559 | for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 560 | write(tbInfo.tarFd, "\0", 1); |
| 561 | } |
Erik Andersen | 0817d13 | 2000-04-09 15:17:40 +0000 | [diff] [blame] | 562 | |
| 563 | /* To be pedantically correct, we would check if the tarball |
Eric Andersen | 3c5ee9a | 2000-11-14 22:15:48 +0000 | [diff] [blame] | 564 | * is smaller than 20 tar blocks, and pad it if it was smaller, |
Erik Andersen | 0817d13 | 2000-04-09 15:17:40 +0000 | [diff] [blame] | 565 | * but that isn't necessary for GNU tar interoperability, and |
| 566 | * so is considered a waste of space */ |
| 567 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 568 | /* Hang up the tools, close up shop, head home */ |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 569 | close(tbInfo.tarFd); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 570 | if (errorFlag) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 571 | bb_error_msg("Error exit delayed from previous errors"); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 572 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 573 | freeHardLinkInfo(&tbInfo.hlInfoHead); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 574 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 575 | #ifdef CONFIG_FEATURE_TAR_GZIP |
| 576 | if (gzip && gzipPid) { |
| 577 | if (waitpid(gzipPid, NULL, 0) == -1) |
| 578 | printf("Couldnt wait ?"); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 579 | } |
| 580 | #endif |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 581 | |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 582 | return !errorFlag; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 583 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 584 | #endif /* tar_create */ |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 585 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 586 | #ifdef CONFIG_FEATURE_TAR_EXCLUDE |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 587 | static llist_t *append_file_list_to_list(llist_t *list) |
Glenn L McGrath | d642a67 | 2001-10-13 06:54:45 +0000 | [diff] [blame] | 588 | { |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 589 | FILE *src_stream; |
| 590 | llist_t *cur = list; |
| 591 | llist_t *tmp; |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 592 | char *line; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 593 | llist_t *newlist = NULL; |
| 594 | |
| 595 | while(cur) { |
| 596 | src_stream = bb_xfopen(cur->data, "r"); |
| 597 | tmp = cur; |
| 598 | cur = cur->link; |
| 599 | free(tmp); |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 600 | while((line = bb_get_chomped_line_from_file(src_stream)) != NULL) { |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 601 | newlist = llist_add_to(newlist, line); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 602 | } |
| 603 | fclose(src_stream); |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 604 | } |
| 605 | return newlist; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 606 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 607 | #endif |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 608 | |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 609 | |
| 610 | static const char tar_options[]="ctxjT:X:C:f:Opvz"; |
Glenn L McGrath | ec87d37 | 2002-11-27 07:52:22 +0000 | [diff] [blame] | 611 | #define CTX_CREATE 1 |
| 612 | #define CTX_TEST 2 |
| 613 | #define CTX_EXTRACT 4 |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 614 | #define TAR_OPT_BZIP2 8 |
| 615 | #define TAR_OPT_INCLUDE 16 |
| 616 | #define TAR_OPT_EXCLUDE 32 |
| 617 | #define TAR_OPT_BASEDIR 64 |
| 618 | #define TAR_OPT_ARNAME 128 |
| 619 | #define TAR_OPT_2STDOUT 256 |
| 620 | #define TAR_OPT_P 512 |
| 621 | #define TAR_OPT_VERBOSE 1024 |
| 622 | #define TAR_OPT_GZIP 2048 |
Glenn L McGrath | ec87d37 | 2002-11-27 07:52:22 +0000 | [diff] [blame] | 623 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 624 | int tar_main(int argc, char **argv) |
| 625 | { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 626 | char (*get_header_ptr)(archive_handle_t *) = get_header_tar; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 627 | archive_handle_t *tar_handle; |
| 628 | int opt; |
| 629 | char *base_dir = NULL; |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 630 | const char *tar_filename = "-"; |
Glenn L McGrath | ec87d37 | 2002-11-27 07:52:22 +0000 | [diff] [blame] | 631 | unsigned char ctx_flag = 0; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 632 | |
Glenn L McGrath | f6bf7a0 | 2002-11-08 07:09:42 +0000 | [diff] [blame] | 633 | if (argc < 2) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 634 | bb_show_usage(); |
Glenn L McGrath | f6bf7a0 | 2002-11-08 07:09:42 +0000 | [diff] [blame] | 635 | } |
| 636 | |
Glenn L McGrath | 934805a | 2002-10-18 23:59:40 +0000 | [diff] [blame] | 637 | /* Prepend '-' to the first argument if required */ |
| 638 | if (argv[1][0] != '-') { |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 639 | char *tmp; |
| 640 | |
| 641 | bb_xasprintf(&tmp, "-%s", argv[1]); |
Glenn L McGrath | 934805a | 2002-10-18 23:59:40 +0000 | [diff] [blame] | 642 | argv[1] = tmp; |
| 643 | } |
| 644 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 645 | /* Initialise default values */ |
| 646 | tar_handle = init_handle(); |
Glenn L McGrath | e2aed7f | 2003-04-26 13:16:44 +0000 | [diff] [blame] | 647 | tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 648 | |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 649 | bb_opt_complementaly = "c~tx:t~cx:x~ct:X*"; |
| 650 | opt = bb_getopt_ulflags(argc, argv, tar_options, |
| 651 | NULL, /* T: arg is ignored by default |
| 652 | a list is an include list */ |
| 653 | &(tar_handle->reject), |
| 654 | &base_dir, /* Change to dir <optarg> */ |
| 655 | &tar_filename); /* archive filename */ |
| 656 | /* Check one and only one context option was given */ |
| 657 | if(opt & 0x80000000UL) |
| 658 | bb_show_usage(); |
| 659 | ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT); |
| 660 | if(ctx_flag & CTX_TEST) { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 661 | if ((tar_handle->action_header == header_list) || |
| 662 | (tar_handle->action_header == header_verbose_list)) { |
| 663 | tar_handle->action_header = header_verbose_list; |
| 664 | } else { |
| 665 | tar_handle->action_header = header_list; |
| 666 | } |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 667 | } |
| 668 | if(ctx_flag & CTX_EXTRACT) { |
| 669 | if (tar_handle->action_data != data_extract_to_stdout) |
Matt Kraai | 0861e82 | 2003-05-18 21:12:36 +0000 | [diff] [blame] | 670 | tar_handle->action_data = data_extract_all; |
| 671 | } |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 672 | if(opt & TAR_OPT_2STDOUT) { |
| 673 | /* To stdout */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 674 | tar_handle->action_data = data_extract_to_stdout; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 675 | } |
| 676 | if(opt & TAR_OPT_VERBOSE) { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 677 | if ((tar_handle->action_header == header_list) || |
| 678 | (tar_handle->action_header == header_verbose_list)) { |
| 679 | tar_handle->action_header = header_verbose_list; |
| 680 | } else { |
| 681 | tar_handle->action_header = header_list; |
| 682 | } |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 683 | } |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 684 | #ifdef CONFIG_FEATURE_TAR_GZIP |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 685 | if(opt & TAR_OPT_GZIP) { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 686 | get_header_ptr = get_header_tar_gz; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 687 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 688 | #endif |
| 689 | #ifdef CONFIG_FEATURE_TAR_BZIP2 |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 690 | if(opt & TAR_OPT_GZIP) { |
Glenn L McGrath | e356883 | 2002-11-13 00:24:20 +0000 | [diff] [blame] | 691 | get_header_ptr = get_header_tar_bz2; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 692 | } |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 693 | #endif |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 694 | #ifdef CONFIG_FEATURE_TAR_EXCLUDE |
| 695 | if(opt & TAR_OPT_EXCLUDE) { |
| 696 | tar_handle->reject = append_file_list_to_list(tar_handle->reject); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 697 | } |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 698 | #endif |
Glenn L McGrath | 2983330 | 2002-10-06 23:25:23 +0000 | [diff] [blame] | 699 | /* Check if we are reading from stdin */ |
| 700 | if ((argv[optind]) && (*argv[optind] == '-')) { |
| 701 | /* Default is to read from stdin, so just skip to next arg */ |
Glenn L McGrath | 8132e93 | 2002-09-28 02:06:39 +0000 | [diff] [blame] | 702 | optind++; |
| 703 | } |
| 704 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 705 | /* Setup an array of filenames to work with */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 706 | /* TODO: This is the same as in ar, seperate function ? */ |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 707 | while (optind < argc) { |
Glenn L McGrath | 66125c8 | 2002-12-08 00:54:33 +0000 | [diff] [blame] | 708 | tar_handle->accept = llist_add_to(tar_handle->accept, argv[optind]); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 709 | optind++; |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 710 | } |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 711 | |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 712 | if ((tar_handle->accept) || (tar_handle->reject)) { |
| 713 | tar_handle->filter = filter_accept_reject_list; |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 714 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 715 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 716 | #ifdef CONFIG_FEATURE_TAR_CREATE |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 717 | /* create an archive */ |
Glenn L McGrath | ec87d37 | 2002-11-27 07:52:22 +0000 | [diff] [blame] | 718 | if (ctx_flag == CTX_CREATE) { |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 719 | int verboseFlag = FALSE; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 720 | int gzipFlag = FALSE; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 721 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 722 | # ifdef CONFIG_FEATURE_TAR_GZIP |
| 723 | if (get_header_ptr == get_header_tar_gz) { |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 724 | gzipFlag = TRUE; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 725 | } |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 726 | # endif /* CONFIG_FEATURE_TAR_GZIP */ |
| 727 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 728 | if (tar_handle->action_header == header_verbose_list) { |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 729 | verboseFlag = TRUE; |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 730 | } |
| 731 | writeTarFile(tar_filename, verboseFlag, tar_handle->accept, |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 732 | tar_handle->reject, gzipFlag); |
| 733 | } else |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 734 | #endif /* CONFIG_FEATURE_TAR_CREATE */ |
| 735 | { |
| 736 | if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) { |
| 737 | tar_handle->src_fd = fileno(stdin); |
Glenn L McGrath | f6bf7a0 | 2002-11-08 07:09:42 +0000 | [diff] [blame] | 738 | tar_handle->seek = seek_by_char; |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 739 | } else { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 740 | tar_handle->src_fd = bb_xopen(tar_filename, O_RDONLY); |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 741 | } |
Glenn L McGrath | 2666679 | 2002-11-15 08:48:47 +0000 | [diff] [blame] | 742 | |
| 743 | if ((base_dir) && (chdir(base_dir))) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 744 | bb_perror_msg_and_die("Couldnt chdir"); |
Glenn L McGrath | 2666679 | 2002-11-15 08:48:47 +0000 | [diff] [blame] | 745 | } |
| 746 | |
Glenn L McGrath | e356883 | 2002-11-13 00:24:20 +0000 | [diff] [blame] | 747 | while (get_header_ptr(tar_handle) == EXIT_SUCCESS); |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 748 | |
| 749 | /* Ckeck that every file that should have been extracted was */ |
| 750 | while (tar_handle->accept) { |
| 751 | if (find_list_entry(tar_handle->reject, tar_handle->accept->data) == NULL) { |
| 752 | if (find_list_entry(tar_handle->passed, tar_handle->accept->data) == NULL) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 753 | bb_error_msg_and_die("%s: Not found in archive\n", tar_handle->accept->data); |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 754 | } |
| 755 | } |
| 756 | tar_handle->accept = tar_handle->accept->link; |
| 757 | } |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 758 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 759 | |
| 760 | #ifdef CONFIG_FEATURE_CLEAN_UP |
Glenn L McGrath | 8132e93 | 2002-09-28 02:06:39 +0000 | [diff] [blame] | 761 | if (tar_handle->src_fd != fileno(stdin)) { |
| 762 | close(tar_handle->src_fd); |
| 763 | } |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 764 | #endif /* CONFIG_FEATURE_CLEAN_UP */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 765 | |
| 766 | return(EXIT_SUCCESS); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 767 | } |