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 | /* |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 3 | * Mini tar implementation for busybox |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 4 | * |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 5 | * Modified to use common extraction code used by ar, cpio, dpkg-deb, dpkg |
Glenn L McGrath | c6992fe | 2004-04-25 05:11:19 +0000 | [diff] [blame] | 6 | * Glenn McGrath <bug1@iinet.net.au> |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 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 |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 9 | * ground up. It still has remnants 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 | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 12 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
Eric Andersen | 96bcfd3 | 1999-11-12 01:30:18 +0000 | [diff] [blame] | 13 | * |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 14 | * Based in part in the tar implementation in sash |
| 15 | * Copyright (c) 1999 by David I. Bell |
| 16 | * Permission is granted to use, distribute, or modify this source, |
| 17 | * provided that this copyright notice remains intact. |
| 18 | * Permission to distribute sash derived code under the GPL has been granted. |
| 19 | * |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 20 | * Based in part on the tar implementation from busybox-0.28 |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 21 | * Copyright (C) 1995 Bruce Perens |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 22 | * |
Bernhard Reutner-Fischer | d9cf7ac | 2006-04-12 18:39:58 +0000 | [diff] [blame] | 23 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 24 | */ |
| 25 | |
Rob Landley | 1bfca7b | 2006-09-10 03:20:37 +0000 | [diff] [blame] | 26 | #include <fnmatch.h> |
| 27 | #include <getopt.h> |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 28 | #include "libbb.h" |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 29 | #include "unarchive.h" |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 30 | |
Denis Vlasenko | 74324c8 | 2007-06-04 10:16:52 +0000 | [diff] [blame] | 31 | #define block_buf bb_common_bufsiz1 |
| 32 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 33 | #if ENABLE_FEATURE_TAR_CREATE |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 34 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 35 | /* Tar file constants */ |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 36 | |
Rob Landley | 3ee6c24 | 2005-10-15 03:06:21 +0000 | [diff] [blame] | 37 | #define TAR_BLOCK_SIZE 512 |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 38 | |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 39 | /* POSIX tar Header Block, from POSIX 1003.1-1990 */ |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 40 | #define NAME_SIZE 100 |
| 41 | #define NAME_SIZE_STR "100" |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 42 | typedef struct TarHeader TarHeader; |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 43 | struct TarHeader { /* byte offset */ |
| 44 | char name[NAME_SIZE]; /* 0-99 */ |
| 45 | char mode[8]; /* 100-107 */ |
| 46 | char uid[8]; /* 108-115 */ |
| 47 | char gid[8]; /* 116-123 */ |
| 48 | char size[12]; /* 124-135 */ |
| 49 | char mtime[12]; /* 136-147 */ |
| 50 | char chksum[8]; /* 148-155 */ |
| 51 | char typeflag; /* 156-156 */ |
| 52 | char linkname[NAME_SIZE]; /* 157-256 */ |
| 53 | char magic[6]; /* 257-262 */ |
| 54 | char version[2]; /* 263-264 */ |
| 55 | char uname[32]; /* 265-296 */ |
| 56 | char gname[32]; /* 297-328 */ |
| 57 | char devmajor[8]; /* 329-336 */ |
| 58 | char devminor[8]; /* 337-344 */ |
| 59 | char prefix[155]; /* 345-499 */ |
| 60 | char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */ |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 61 | }; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 62 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 63 | /* |
Denis Vlasenko | 4fbb584 | 2006-11-24 14:55:23 +0000 | [diff] [blame] | 64 | ** writeTarFile(), writeFileToTarball(), and writeTarHeader() are |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 65 | ** the only functions that deal with the HardLinkInfo structure. |
| 66 | ** Even these functions use the xxxHardLinkInfo() functions. |
| 67 | */ |
| 68 | typedef struct HardLinkInfo HardLinkInfo; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 69 | struct HardLinkInfo { |
| 70 | HardLinkInfo *next; /* Next entry in list */ |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 71 | dev_t dev; /* Device number */ |
| 72 | ino_t ino; /* Inode number */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 73 | short linkCount; /* (Hard) Link Count */ |
| 74 | char name[1]; /* Start of filename (must be last) */ |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 75 | }; |
| 76 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 77 | /* Some info to be carried along when creating a new tarball */ |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 78 | typedef struct TarBallInfo TarBallInfo; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 79 | struct TarBallInfo { |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 80 | int tarFd; /* Open-for-write file descriptor |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 81 | for the tarball */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 82 | struct stat statBuf; /* Stat info for the tarball, letting |
| 83 | us know the inode and device that the |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 84 | tarball lives, so we can avoid trying |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 85 | to include the tarball into itself */ |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 86 | int verboseFlag; /* Whether to print extra stuff or not */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 87 | const llist_t *excludeList; /* List of files to not include */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 88 | HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */ |
| 89 | HardLinkInfo *hlInfo; /* Hard Link Info for the current file */ |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 90 | }; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 91 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 92 | /* A nice enum with all the possible tar file content types */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 93 | enum TarFileType { |
| 94 | REGTYPE = '0', /* regular file */ |
| 95 | REGTYPE0 = '\0', /* regular file (ancient bug compat) */ |
| 96 | LNKTYPE = '1', /* hard link */ |
| 97 | SYMTYPE = '2', /* symbolic link */ |
| 98 | CHRTYPE = '3', /* character special */ |
| 99 | BLKTYPE = '4', /* block special */ |
| 100 | DIRTYPE = '5', /* directory */ |
| 101 | FIFOTYPE = '6', /* FIFO special */ |
| 102 | CONTTYPE = '7', /* reserved */ |
| 103 | GNULONGLINK = 'K', /* GNU long (>100 chars) link name */ |
| 104 | GNULONGNAME = 'L', /* GNU long (>100 chars) file name */ |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 105 | }; |
| 106 | typedef enum TarFileType TarFileType; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 107 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 108 | /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */ |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 109 | static void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr, |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 110 | struct stat *statbuf, |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 111 | const char *fileName) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 112 | { |
| 113 | /* Note: hlInfoHeadPtr can never be NULL! */ |
| 114 | HardLinkInfo *hlInfo; |
| 115 | |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 116 | hlInfo = xmalloc(sizeof(HardLinkInfo) + strlen(fileName)); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 117 | hlInfo->next = *hlInfoHeadPtr; |
| 118 | *hlInfoHeadPtr = hlInfo; |
| 119 | hlInfo->dev = statbuf->st_dev; |
| 120 | hlInfo->ino = statbuf->st_ino; |
| 121 | hlInfo->linkCount = statbuf->st_nlink; |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 122 | strcpy(hlInfo->name, fileName); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 123 | } |
| 124 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 125 | static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 126 | { |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 127 | HardLinkInfo *hlInfo; |
| 128 | HardLinkInfo *hlInfoNext; |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 129 | |
| 130 | if (hlInfoHeadPtr) { |
| 131 | hlInfo = *hlInfoHeadPtr; |
| 132 | while (hlInfo) { |
| 133 | hlInfoNext = hlInfo->next; |
| 134 | free(hlInfo); |
| 135 | hlInfo = hlInfoNext; |
| 136 | } |
| 137 | *hlInfoHeadPtr = NULL; |
| 138 | } |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */ |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 142 | static HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, struct stat *statbuf) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 143 | { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 144 | while (hlInfo) { |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 145 | if ((statbuf->st_ino == hlInfo->ino) && (statbuf->st_dev == hlInfo->dev)) |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 146 | break; |
| 147 | hlInfo = hlInfo->next; |
| 148 | } |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 149 | return hlInfo; |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 150 | } |
| 151 | |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 152 | /* Put an octal string into the specified buffer. |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 153 | * The number is zero padded and possibly null terminated. |
Denis Vlasenko | 87cd4a8 | 2006-11-25 23:47:32 +0000 | [diff] [blame] | 154 | * Stores low-order bits only if whole value does not fit. */ |
| 155 | static void putOctal(char *cp, int len, off_t value) |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 156 | { |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 157 | char tempBuffer[sizeof(off_t)*3+1]; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 158 | char *tempString = tempBuffer; |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 159 | int width; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 160 | |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 161 | width = sprintf(tempBuffer, "%0*"OFF_FMT"o", len, value); |
| 162 | tempString += (width - len); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 163 | |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 164 | /* If string has leading zeroes, we can drop one */ |
| 165 | /* and field will have trailing '\0' */ |
| 166 | /* (increases chances of compat with other tars) */ |
| 167 | if (tempString[0] == '0') |
| 168 | tempString++; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 169 | |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 170 | /* Copy the string to the field */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 171 | memcpy(cp, tempString, len); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 172 | } |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 173 | #define PUT_OCTAL(a, b) putOctal((a), sizeof(a), (b)) |
| 174 | |
| 175 | static void chksum_and_xwrite(int fd, struct TarHeader* hp) |
| 176 | { |
Denis Vlasenko | dcbd51d | 2007-03-03 20:06:59 +0000 | [diff] [blame] | 177 | /* POSIX says that checksum is done on unsigned bytes |
Denis Vlasenko | 940494f | 2007-03-04 18:09:50 +0000 | [diff] [blame] | 178 | * (Sun and HP-UX gets it wrong... more details in |
Denis Vlasenko | dcbd51d | 2007-03-03 20:06:59 +0000 | [diff] [blame] | 179 | * GNU tar source) */ |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 180 | const unsigned char *cp; |
| 181 | int chksum, size; |
| 182 | |
| 183 | strcpy(hp->magic, "ustar "); |
| 184 | |
| 185 | /* Calculate and store the checksum (i.e., the sum of all of the bytes of |
| 186 | * the header). The checksum field must be filled with blanks for the |
| 187 | * calculation. The checksum field is formatted differently from the |
| 188 | * other fields: it has 6 digits, a null, then a space -- rather than |
| 189 | * digits, followed by a null like the other fields... */ |
| 190 | memset(hp->chksum, ' ', sizeof(hp->chksum)); |
| 191 | cp = (const unsigned char *) hp; |
| 192 | chksum = 0; |
| 193 | size = sizeof(*hp); |
| 194 | do { chksum += *cp++; } while (--size); |
| 195 | putOctal(hp->chksum, sizeof(hp->chksum)-1, chksum); |
| 196 | |
| 197 | /* Now write the header out to disk */ |
| 198 | xwrite(fd, hp, sizeof(*hp)); |
| 199 | } |
| 200 | |
| 201 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
| 202 | static void writeLongname(int fd, int type, const char *name, int dir) |
| 203 | { |
| 204 | static const struct { |
| 205 | char mode[8]; /* 100-107 */ |
| 206 | char uid[8]; /* 108-115 */ |
| 207 | char gid[8]; /* 116-123 */ |
| 208 | char size[12]; /* 124-135 */ |
| 209 | char mtime[12]; /* 136-147 */ |
| 210 | } prefilled = { |
| 211 | "0000000", |
| 212 | "0000000", |
| 213 | "0000000", |
| 214 | "00000000000", |
| 215 | "00000000000", |
| 216 | }; |
| 217 | struct TarHeader header; |
| 218 | int size; |
| 219 | |
| 220 | dir = !!dir; /* normalize: 0/1 */ |
| 221 | size = strlen(name) + 1 + dir; /* GNU tar uses strlen+1 */ |
| 222 | /* + dir: account for possible '/' */ |
| 223 | |
Bernhard Reutner-Fischer | 6f0540e | 2006-12-12 11:50:44 +0000 | [diff] [blame] | 224 | memset(&header, 0, sizeof(header)); |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 225 | strcpy(header.name, "././@LongLink"); |
| 226 | memcpy(header.mode, prefilled.mode, sizeof(prefilled)); |
| 227 | PUT_OCTAL(header.size, size); |
| 228 | header.typeflag = type; |
| 229 | chksum_and_xwrite(fd, &header); |
| 230 | |
| 231 | /* Write filename[/] and pad the block. */ |
| 232 | /* dir=0: writes 'name<NUL>', pads */ |
| 233 | /* dir=1: writes 'name', writes '/<NUL>', pads */ |
| 234 | dir *= 2; |
| 235 | xwrite(fd, name, size - dir); |
| 236 | xwrite(fd, "/", dir); |
| 237 | size = (-size) & (TAR_BLOCK_SIZE-1); |
Bernhard Reutner-Fischer | 6f0540e | 2006-12-12 11:50:44 +0000 | [diff] [blame] | 238 | memset(&header, 0, size); |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 239 | xwrite(fd, &header, size); |
| 240 | } |
| 241 | #endif |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 242 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 243 | /* Write out a tar header for the specified file/directory/whatever */ |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 244 | void BUG_tar_header_size(void); |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 245 | static int writeTarHeader(struct TarBallInfo *tbInfo, |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 246 | const char *header_name, const char *fileName, struct stat *statbuf) |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 247 | { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 248 | struct TarHeader header; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 249 | |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 250 | if (sizeof(header) != 512) |
| 251 | BUG_tar_header_size(); |
| 252 | |
Bernhard Reutner-Fischer | 6f0540e | 2006-12-12 11:50:44 +0000 | [diff] [blame] | 253 | memset(&header, 0, sizeof(struct TarHeader)); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 254 | |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 255 | strncpy(header.name, header_name, sizeof(header.name)); |
Erik Andersen | ecd5124 | 2000-04-08 03:08:21 +0000 | [diff] [blame] | 256 | |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 257 | /* POSIX says to mask mode with 07777. */ |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 258 | PUT_OCTAL(header.mode, statbuf->st_mode & 07777); |
| 259 | PUT_OCTAL(header.uid, statbuf->st_uid); |
| 260 | PUT_OCTAL(header.gid, statbuf->st_gid); |
Denis Vlasenko | b8a8e60 | 2006-11-24 14:59:45 +0000 | [diff] [blame] | 261 | memset(header.size, '0', sizeof(header.size)-1); /* Regular file size is handled later */ |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 262 | PUT_OCTAL(header.mtime, statbuf->st_mtime); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 263 | |
Denis Vlasenko | c50f370 | 2006-11-24 14:57:31 +0000 | [diff] [blame] | 264 | /* Enter the user and group names */ |
| 265 | safe_strncpy(header.uname, get_cached_username(statbuf->st_uid), sizeof(header.uname)); |
| 266 | safe_strncpy(header.gname, get_cached_groupname(statbuf->st_gid), sizeof(header.gname)); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 267 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 268 | if (tbInfo->hlInfo) { |
| 269 | /* This is a hard link */ |
| 270 | header.typeflag = LNKTYPE; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 271 | strncpy(header.linkname, tbInfo->hlInfo->name, |
| 272 | sizeof(header.linkname)); |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 273 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
| 274 | /* Write out long linkname if needed */ |
| 275 | if (header.linkname[sizeof(header.linkname)-1]) |
| 276 | writeLongname(tbInfo->tarFd, GNULONGLINK, |
| 277 | tbInfo->hlInfo->name, 0); |
| 278 | #endif |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 279 | } else if (S_ISLNK(statbuf->st_mode)) { |
Denis Vlasenko | 6ca0444 | 2007-02-11 16:19:28 +0000 | [diff] [blame] | 280 | char *lpath = xmalloc_readlink_or_warn(fileName); |
| 281 | if (!lpath) |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 282 | return FALSE; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 283 | header.typeflag = SYMTYPE; |
| 284 | strncpy(header.linkname, lpath, sizeof(header.linkname)); |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 285 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
| 286 | /* Write out long linkname if needed */ |
| 287 | if (header.linkname[sizeof(header.linkname)-1]) |
| 288 | writeLongname(tbInfo->tarFd, GNULONGLINK, lpath, 0); |
| 289 | #else |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 290 | /* If it is larger than 100 bytes, bail out */ |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 291 | if (header.linkname[sizeof(header.linkname)-1]) { |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 292 | free(lpath); |
| 293 | bb_error_msg("names longer than "NAME_SIZE_STR" chars not supported"); |
| 294 | return FALSE; |
| 295 | } |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 296 | #endif |
Mark Whitley | 8a63326 | 2001-04-30 18:17:00 +0000 | [diff] [blame] | 297 | free(lpath); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 298 | } else if (S_ISDIR(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 299 | header.typeflag = DIRTYPE; |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 300 | /* Append '/' only if there is a space for it */ |
| 301 | if (!header.name[sizeof(header.name)-1]) |
| 302 | header.name[strlen(header.name)] = '/'; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 303 | } else if (S_ISCHR(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 304 | header.typeflag = CHRTYPE; |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 305 | PUT_OCTAL(header.devmajor, major(statbuf->st_rdev)); |
| 306 | PUT_OCTAL(header.devminor, minor(statbuf->st_rdev)); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 307 | } else if (S_ISBLK(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 308 | header.typeflag = BLKTYPE; |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 309 | PUT_OCTAL(header.devmajor, major(statbuf->st_rdev)); |
| 310 | PUT_OCTAL(header.devminor, minor(statbuf->st_rdev)); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 311 | } else if (S_ISFIFO(statbuf->st_mode)) { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 312 | header.typeflag = FIFOTYPE; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 313 | } else if (S_ISREG(statbuf->st_mode)) { |
Denis Vlasenko | 87cd4a8 | 2006-11-25 23:47:32 +0000 | [diff] [blame] | 314 | if (sizeof(statbuf->st_size) > 4 |
| 315 | && statbuf->st_size > (off_t)0777777777777LL |
Denis Vlasenko | f2408e6 | 2006-11-25 14:48:09 +0000 | [diff] [blame] | 316 | ) { |
| 317 | bb_error_msg_and_die("cannot store file '%s' " |
| 318 | "of size %"OFF_FMT"d, aborting", |
| 319 | fileName, statbuf->st_size); |
| 320 | } |
Denis Vlasenko | 87cd4a8 | 2006-11-25 23:47:32 +0000 | [diff] [blame] | 321 | header.typeflag = REGTYPE; |
| 322 | PUT_OCTAL(header.size, statbuf->st_size); |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 323 | } else { |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 324 | bb_error_msg("%s: unknown file type", fileName); |
| 325 | return FALSE; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 326 | } |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 327 | |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 328 | #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
| 329 | /* Write out long name if needed */ |
| 330 | /* (we, like GNU tar, output long linkname *before* long name) */ |
| 331 | if (header.name[sizeof(header.name)-1]) |
| 332 | writeLongname(tbInfo->tarFd, GNULONGNAME, |
| 333 | header_name, S_ISDIR(statbuf->st_mode)); |
| 334 | #endif |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 335 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 336 | /* Now write the header out to disk */ |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 337 | chksum_and_xwrite(tbInfo->tarFd, &header); |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 338 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 339 | /* Now do the verbose thing (or not) */ |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 340 | if (tbInfo->verboseFlag) { |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 341 | FILE *vbFd = stdout; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 342 | |
Eric Andersen | 70060d2 | 2004-03-27 10:02:48 +0000 | [diff] [blame] | 343 | if (tbInfo->tarFd == STDOUT_FILENO) /* If the archive goes to stdout, verbose to stderr */ |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 344 | vbFd = stderr; |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 345 | /* GNU "tar cvvf" prints "extended" listing a-la "ls -l" */ |
| 346 | /* We don't have such excesses here: for us "v" == "vv" */ |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 347 | /* '/' is probably a GNUism */ |
| 348 | fprintf(vbFd, "%s%s\n", header_name, |
| 349 | S_ISDIR(statbuf->st_mode) ? "/" : ""); |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 350 | } |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 351 | |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 352 | return TRUE; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 353 | } |
| 354 | |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 355 | #if ENABLE_FEATURE_TAR_FROM |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 356 | static int exclude_file(const llist_t *excluded_files, const char *file) |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 357 | { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 358 | while (excluded_files) { |
| 359 | if (excluded_files->data[0] == '/') { |
| 360 | if (fnmatch(excluded_files->data, file, |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 361 | FNM_PATHNAME | FNM_LEADING_DIR) == 0) |
| 362 | return 1; |
| 363 | } else { |
| 364 | const char *p; |
| 365 | |
| 366 | for (p = file; p[0] != '\0'; p++) { |
| 367 | if ((p == file || p[-1] == '/') && p[0] != '/' && |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 368 | fnmatch(excluded_files->data, p, |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 369 | FNM_PATHNAME | FNM_LEADING_DIR) == 0) |
| 370 | return 1; |
| 371 | } |
| 372 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 373 | excluded_files = excluded_files->link; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | return 0; |
| 377 | } |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 378 | #else |
"Vladimir N. Oleynik" | a62b0e7 | 2005-12-06 12:20:57 +0000 | [diff] [blame] | 379 | #define exclude_file(excluded_files, file) 0 |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 380 | #endif |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 381 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 382 | static int writeFileToTarball(const char *fileName, struct stat *statbuf, |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 383 | void *userData, int depth ATTRIBUTE_UNUSED) |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 384 | { |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 385 | struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData; |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 386 | const char *header_name; |
Rob Landley | e569553 | 2006-01-09 03:07:44 +0000 | [diff] [blame] | 387 | int inputFileFd = -1; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 388 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 389 | /* |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 390 | * Check to see if we are dealing with a hard link. |
| 391 | * If so - |
| 392 | * Treat the first occurance of a given dev/inode as a file while |
| 393 | * treating any additional occurances as hard links. This is done |
| 394 | * by adding the file information to the HardLinkInfo linked list. |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 395 | */ |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 396 | tbInfo->hlInfo = NULL; |
| 397 | if (statbuf->st_nlink > 1) { |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 398 | tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 399 | if (tbInfo->hlInfo == NULL) |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 400 | addHardLinkInfo(&tbInfo->hlInfoHead, statbuf, fileName); |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 401 | } |
| 402 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 403 | /* It is against the rules to archive a socket */ |
| 404 | if (S_ISSOCK(statbuf->st_mode)) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 405 | bb_error_msg("%s: socket ignored", fileName); |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 406 | return TRUE; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 407 | } |
| 408 | |
| 409 | /* It is a bad idea to store the archive we are in the process of creating, |
| 410 | * so check the device and inode to be sure that this particular file isn't |
| 411 | * the new tarball */ |
| 412 | if (tbInfo->statBuf.st_dev == statbuf->st_dev && |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 413 | tbInfo->statBuf.st_ino == statbuf->st_ino) { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 414 | bb_error_msg("%s: file is the archive; skipping", fileName); |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 415 | return TRUE; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 416 | } |
| 417 | |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 418 | header_name = fileName; |
| 419 | while (header_name[0] == '/') { |
Denis Vlasenko | 931de89 | 2007-06-21 12:43:45 +0000 | [diff] [blame] | 420 | static smallint warned; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 421 | |
Denis Vlasenko | 931de89 | 2007-06-21 12:43:45 +0000 | [diff] [blame] | 422 | if (!warned) { |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 423 | bb_error_msg("removing leading '/' from member names"); |
Denis Vlasenko | 931de89 | 2007-06-21 12:43:45 +0000 | [diff] [blame] | 424 | warned = 1; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 425 | } |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 426 | header_name++; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 427 | } |
| 428 | |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 429 | #if !ENABLE_FEATURE_TAR_GNU_EXTENSIONS |
Eric Andersen | 1b1cfde | 2000-09-24 00:54:37 +0000 | [diff] [blame] | 430 | if (strlen(fileName) >= NAME_SIZE) { |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 431 | bb_error_msg("names longer than "NAME_SIZE_STR" chars not supported"); |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 432 | return TRUE; |
Eric Andersen | 1b1cfde | 2000-09-24 00:54:37 +0000 | [diff] [blame] | 433 | } |
Denis Vlasenko | 7725d0f | 2006-11-25 23:56:50 +0000 | [diff] [blame] | 434 | #endif |
Eric Andersen | 1b1cfde | 2000-09-24 00:54:37 +0000 | [diff] [blame] | 435 | |
Matt Kraai | e80a263 | 2000-12-19 20:45:49 +0000 | [diff] [blame] | 436 | if (header_name[0] == '\0') |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 437 | return TRUE; |
| 438 | |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 439 | if (exclude_file(tbInfo->excludeList, header_name)) |
Matt Kraai | be7499c | 2001-01-03 17:22:10 +0000 | [diff] [blame] | 440 | return SKIP; |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 441 | |
Rob Landley | e569553 | 2006-01-09 03:07:44 +0000 | [diff] [blame] | 442 | /* Is this a regular file? */ |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 443 | if (tbInfo->hlInfo == NULL && S_ISREG(statbuf->st_mode)) { |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 444 | /* open the file we want to archive, and make sure all is well */ |
Denis Vlasenko | 50f7f44 | 2007-04-11 23:20:53 +0000 | [diff] [blame] | 445 | inputFileFd = open_or_warn(fileName, O_RDONLY); |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 446 | if (inputFileFd < 0) { |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 447 | return FALSE; |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 448 | } |
Rob Landley | e569553 | 2006-01-09 03:07:44 +0000 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | /* Add an entry to the tarball */ |
| 452 | if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) { |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 453 | return FALSE; |
Rob Landley | e569553 | 2006-01-09 03:07:44 +0000 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | /* If it was a regular file, write out the body */ |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 457 | if (inputFileFd >= 0) { |
Denis Vlasenko | 714701c | 2006-12-22 00:21:07 +0000 | [diff] [blame] | 458 | size_t readSize; |
Denis Vlasenko | 50f7f44 | 2007-04-11 23:20:53 +0000 | [diff] [blame] | 459 | /* Write the file to the archive. */ |
Denis Vlasenko | 714701c | 2006-12-22 00:21:07 +0000 | [diff] [blame] | 460 | /* We record size into header first, */ |
| 461 | /* and then write out file. If file shrinks in between, */ |
| 462 | /* tar will be corrupted. So we don't allow for that. */ |
| 463 | /* NB: GNU tar 1.16 warns and pads with zeroes */ |
| 464 | /* or even seeks back and updates header */ |
| 465 | bb_copyfd_exact_size(inputFileFd, tbInfo->tarFd, statbuf->st_size); |
| 466 | ////off_t readSize; |
| 467 | ////readSize = bb_copyfd_size(inputFileFd, tbInfo->tarFd, statbuf->st_size); |
| 468 | ////if (readSize != statbuf->st_size && readSize >= 0) { |
| 469 | //// bb_error_msg_and_die("short read from %s, aborting", fileName); |
| 470 | ////} |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 471 | |
Denis Vlasenko | 4fbb584 | 2006-11-24 14:55:23 +0000 | [diff] [blame] | 472 | /* Check that file did not grow in between? */ |
Denis Vlasenko | 714701c | 2006-12-22 00:21:07 +0000 | [diff] [blame] | 473 | /* if (safe_read(inputFileFd, 1) == 1) warn but continue? */ |
| 474 | |
Rob Landley | e569553 | 2006-01-09 03:07:44 +0000 | [diff] [blame] | 475 | close(inputFileFd); |
Glenn L McGrath | 7ffe133 | 2003-11-21 22:24:57 +0000 | [diff] [blame] | 476 | |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 477 | /* Pad the file up to the tar block size */ |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 478 | /* (a few tricks here in the name of code size) */ |
Denis Vlasenko | 714701c | 2006-12-22 00:21:07 +0000 | [diff] [blame] | 479 | readSize = (-(int)statbuf->st_size) & (TAR_BLOCK_SIZE-1); |
Denis Vlasenko | 74324c8 | 2007-06-04 10:16:52 +0000 | [diff] [blame] | 480 | memset(block_buf, 0, readSize); |
| 481 | xwrite(tbInfo->tarFd, block_buf, readSize); |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 482 | } |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 483 | |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 484 | return TRUE; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 485 | } |
| 486 | |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 487 | static int writeTarFile(const int tar_fd, const int verboseFlag, |
Glenn L McGrath | 303e989 | 2004-01-25 05:48:28 +0000 | [diff] [blame] | 488 | const unsigned long dereferenceFlag, const llist_t *include, |
| 489 | const llist_t *exclude, const int gzip) |
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 | pid_t gzipPid = 0; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 492 | int errorFlag = FALSE; |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 493 | struct TarBallInfo tbInfo; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 494 | |
Eric Andersen | 3d957c8 | 2000-12-07 00:34:58 +0000 | [diff] [blame] | 495 | tbInfo.hlInfoHead = NULL; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 496 | |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 497 | fchmod(tar_fd, 0644); |
| 498 | tbInfo.tarFd = tar_fd; |
| 499 | tbInfo.verboseFlag = verboseFlag; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 500 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 501 | /* Store the stat info for the tarball's file, so |
| 502 | * can avoid including the tarball into itself.... */ |
| 503 | if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0) |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 504 | bb_perror_msg_and_die("cannot stat tar file"); |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 505 | |
Rob Landley | cc8885f | 2005-08-30 03:40:03 +0000 | [diff] [blame] | 506 | if ((ENABLE_FEATURE_TAR_GZIP || ENABLE_FEATURE_TAR_BZIP2) && gzip) { |
| 507 | int gzipDataPipe[2] = { -1, -1 }; |
| 508 | int gzipStatusPipe[2] = { -1, -1 }; |
| 509 | volatile int vfork_exec_errno = 0; |
Denis Vlasenko | a41fdf3 | 2007-01-29 22:51:00 +0000 | [diff] [blame] | 510 | const char *zip_exec = (gzip == 1) ? "gzip" : "bzip2"; |
Rob Landley | cc8885f | 2005-08-30 03:40:03 +0000 | [diff] [blame] | 511 | |
Denis Vlasenko | 5a6aedd | 2007-05-26 16:44:20 +0000 | [diff] [blame] | 512 | xpipe(gzipDataPipe); |
| 513 | xpipe(gzipStatusPipe); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 514 | |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 515 | signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */ |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 516 | |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 517 | #if defined(__GNUC__) && __GNUC__ |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 518 | /* Avoid vfork clobbering */ |
| 519 | (void) &include; |
| 520 | (void) &errorFlag; |
| 521 | (void) &zip_exec; |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 522 | #endif |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 523 | |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 524 | gzipPid = vfork(); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 525 | |
| 526 | if (gzipPid == 0) { |
| 527 | dup2(gzipDataPipe[0], 0); |
| 528 | close(gzipDataPipe[1]); |
| 529 | |
Denis Vlasenko | b8a8e60 | 2006-11-24 14:59:45 +0000 | [diff] [blame] | 530 | dup2(tbInfo.tarFd, 1); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 531 | |
| 532 | close(gzipStatusPipe[0]); |
Bernhard Reutner-Fischer | 126da9e | 2005-12-12 11:20:39 +0000 | [diff] [blame] | 533 | fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows success */ |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 534 | |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame] | 535 | BB_EXECLP(zip_exec, zip_exec, "-f", NULL); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 536 | vfork_exec_errno = errno; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 537 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 538 | close(gzipStatusPipe[1]); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 539 | exit(-1); |
| 540 | } else if (gzipPid > 0) { |
| 541 | close(gzipDataPipe[0]); |
| 542 | close(gzipStatusPipe[1]); |
| 543 | |
| 544 | while (1) { |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 545 | char buf; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 546 | |
Rob Landley | 5343747 | 2006-07-16 08:14:35 +0000 | [diff] [blame] | 547 | int n = full_read(gzipStatusPipe[0], &buf, 1); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 548 | |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 549 | if (n == 0 && vfork_exec_errno != 0) { |
| 550 | errno = vfork_exec_errno; |
Denis Vlasenko | ea62077 | 2006-10-14 02:23:43 +0000 | [diff] [blame] | 551 | bb_perror_msg_and_die("cannot exec %s", zip_exec); |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 552 | } else if ((n < 0) && (errno == EAGAIN || errno == EINTR)) |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 553 | continue; /* try it again */ |
| 554 | break; |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 555 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 556 | close(gzipStatusPipe[0]); |
| 557 | |
| 558 | tbInfo.tarFd = gzipDataPipe[1]; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 559 | } else bb_perror_msg_and_die("vfork gzip"); |
Robert Griebl | f2f26e7 | 2002-07-23 22:05:47 +0000 | [diff] [blame] | 560 | } |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 561 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 562 | tbInfo.excludeList = exclude; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 563 | |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 564 | /* 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] | 565 | while (include) { |
Denis Vlasenko | bbd695d | 2007-04-08 10:52:28 +0000 | [diff] [blame] | 566 | if (!recursive_action(include->data, ACTION_RECURSE | |
| 567 | (dereferenceFlag ? ACTION_FOLLOWLINKS : 0), |
Bernhard Reutner-Fischer | 3e816c1 | 2007-03-29 10:30:50 +0000 | [diff] [blame] | 568 | writeFileToTarball, writeFileToTarball, &tbInfo, 0)) |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 569 | { |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 570 | errorFlag = TRUE; |
Erik Andersen | 3364d78 | 2000-03-28 00:58:14 +0000 | [diff] [blame] | 571 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 572 | include = include->link; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 573 | } |
Erik Andersen | 5661fe0 | 2000-04-05 01:00:52 +0000 | [diff] [blame] | 574 | /* Write two empty blocks to the end of the archive */ |
Denis Vlasenko | 74324c8 | 2007-06-04 10:16:52 +0000 | [diff] [blame] | 575 | memset(block_buf, 0, 2*TAR_BLOCK_SIZE); |
| 576 | xwrite(tbInfo.tarFd, block_buf, 2*TAR_BLOCK_SIZE); |
Erik Andersen | 0817d13 | 2000-04-09 15:17:40 +0000 | [diff] [blame] | 577 | |
| 578 | /* To be pedantically correct, we would check if the tarball |
Eric Andersen | 3c5ee9a | 2000-11-14 22:15:48 +0000 | [diff] [blame] | 579 | * 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] | 580 | * but that isn't necessary for GNU tar interoperability, and |
| 581 | * so is considered a waste of space */ |
| 582 | |
Rob Landley | 1a78103 | 2005-12-16 21:33:10 +0000 | [diff] [blame] | 583 | /* Close so the child process (if any) will exit */ |
| 584 | close(tbInfo.tarFd); |
| 585 | |
Erik Andersen | 68a9ea4 | 2000-04-04 18:39:50 +0000 | [diff] [blame] | 586 | /* Hang up the tools, close up shop, head home */ |
Rob Landley | 1a78103 | 2005-12-16 21:33:10 +0000 | [diff] [blame] | 587 | if (ENABLE_FEATURE_CLEAN_UP) |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 588 | freeHardLinkInfo(&tbInfo.hlInfoHead); |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 589 | |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 590 | if (errorFlag) |
Denis Vlasenko | e1a0d48 | 2006-10-20 13:28:22 +0000 | [diff] [blame] | 591 | bb_error_msg("error exit delayed from previous errors"); |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 592 | |
Denis Vlasenko | c888946 | 2006-12-17 19:08:20 +0000 | [diff] [blame] | 593 | if (gzipPid) { |
| 594 | int status; |
| 595 | if (waitpid(gzipPid, &status, 0) == -1) |
| 596 | bb_perror_msg("waitpid"); |
| 597 | else if (!WIFEXITED(status) || WEXITSTATUS(status)) |
| 598 | /* gzip was killed or has exited with nonzero! */ |
| 599 | errorFlag = TRUE; |
| 600 | } |
| 601 | return errorFlag; |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 602 | } |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 603 | #else |
| 604 | int writeTarFile(const int tar_fd, const int verboseFlag, |
| 605 | const unsigned long dereferenceFlag, const llist_t *include, |
| 606 | const llist_t *exclude, const int gzip); |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 607 | #endif /* FEATURE_TAR_CREATE */ |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 608 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 609 | #if ENABLE_FEATURE_TAR_FROM |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 610 | static llist_t *append_file_list_to_list(llist_t *list) |
Glenn L McGrath | d642a67 | 2001-10-13 06:54:45 +0000 | [diff] [blame] | 611 | { |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 612 | FILE *src_stream; |
| 613 | llist_t *cur = list; |
| 614 | llist_t *tmp; |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 615 | char *line; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 616 | llist_t *newlist = NULL; |
| 617 | |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 618 | while (cur) { |
Rob Landley | 86b4d64 | 2006-08-03 17:58:17 +0000 | [diff] [blame] | 619 | src_stream = xfopen(cur->data, "r"); |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 620 | tmp = cur; |
| 621 | cur = cur->link; |
| 622 | free(tmp); |
Denis Vlasenko | 2d5ca60 | 2006-10-12 22:43:20 +0000 | [diff] [blame] | 623 | while ((line = xmalloc_getline(src_stream)) != NULL) { |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 624 | /* kill trailing '/' unless the string is just "/" */ |
| 625 | char *cp = last_char_is(line, '/'); |
| 626 | if (cp > line) |
| 627 | *cp = '\0'; |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 628 | llist_add_to(&newlist, line); |
Denis Vlasenko | 314908d | 2006-09-03 14:04:33 +0000 | [diff] [blame] | 629 | } |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 630 | fclose(src_stream); |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 631 | } |
| 632 | return newlist; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 633 | } |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 634 | #else |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 635 | #define append_file_list_to_list(x) 0 |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 636 | #endif |
Erik Andersen | 6acaa40 | 2000-03-26 14:03:20 +0000 | [diff] [blame] | 637 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 638 | #if ENABLE_FEATURE_TAR_COMPRESS |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 639 | static char get_header_tar_Z(archive_handle_t *archive_handle) |
| 640 | { |
Denis Vlasenko | e1a0d48 | 2006-10-20 13:28:22 +0000 | [diff] [blame] | 641 | /* Can't lseek over pipes */ |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 642 | archive_handle->seek = seek_by_read; |
Eric Andersen | 27cb684 | 2003-06-26 09:07:59 +0000 | [diff] [blame] | 643 | |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 644 | /* do the decompression, and cleanup */ |
Denis Vlasenko | cf30cc8 | 2006-11-24 14:53:18 +0000 | [diff] [blame] | 645 | if (xread_char(archive_handle->src_fd) != 0x1f |
| 646 | || xread_char(archive_handle->src_fd) != 0x9d |
| 647 | ) { |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 648 | bb_error_msg_and_die("invalid magic"); |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | archive_handle->src_fd = open_transformer(archive_handle->src_fd, uncompress); |
| 652 | archive_handle->offset = 0; |
Denis Vlasenko | 0c45bb23 | 2006-09-09 12:49:03 +0000 | [diff] [blame] | 653 | while (get_header_tar(archive_handle) == EXIT_SUCCESS) |
| 654 | /* nothing */; |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 655 | |
| 656 | /* Can only do one file at a time */ |
Denis Vlasenko | e1a0d48 | 2006-10-20 13:28:22 +0000 | [diff] [blame] | 657 | return EXIT_FAILURE; |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 658 | } |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 659 | #else |
Denis Vlasenko | 218f2f4 | 2007-01-24 22:02:01 +0000 | [diff] [blame] | 660 | #define get_header_tar_Z NULL |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 661 | #endif |
| 662 | |
Denis Vlasenko | c888946 | 2006-12-17 19:08:20 +0000 | [diff] [blame] | 663 | #ifdef CHECK_FOR_CHILD_EXITCODE |
| 664 | /* Looks like it isn't needed - tar detects malformed (truncated) |
| 665 | * archive if e.g. bunzip2 fails */ |
| 666 | static int child_error; |
| 667 | |
| 668 | static void handle_SIGCHLD(int status) |
| 669 | { |
| 670 | /* Actually, 'status' is a signo. We reuse it for other needs */ |
| 671 | |
| 672 | /* Wait for any child without blocking */ |
| 673 | if (waitpid(-1, &status, WNOHANG) < 0) |
| 674 | /* wait failed?! I'm confused... */ |
| 675 | return; |
| 676 | |
| 677 | if (WIFEXITED(status) && WEXITSTATUS(status)==0) |
| 678 | /* child exited with 0 */ |
| 679 | return; |
Denis Vlasenko | f7996f3 | 2007-01-11 17:20:00 +0000 | [diff] [blame] | 680 | /* Cannot happen? |
Denis Vlasenko | 51742f4 | 2007-04-12 00:32:05 +0000 | [diff] [blame] | 681 | if (!WIFSIGNALED(status) && !WIFEXITED(status)) return; */ |
Denis Vlasenko | c888946 | 2006-12-17 19:08:20 +0000 | [diff] [blame] | 682 | child_error = 1; |
| 683 | } |
| 684 | #endif |
| 685 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 686 | enum { |
| 687 | OPTBIT_KEEP_OLD = 7, |
| 688 | USE_FEATURE_TAR_CREATE( OPTBIT_CREATE ,) |
| 689 | USE_FEATURE_TAR_CREATE( OPTBIT_DEREFERENCE ,) |
| 690 | USE_FEATURE_TAR_BZIP2( OPTBIT_BZIP2 ,) |
| 691 | USE_FEATURE_TAR_LZMA( OPTBIT_LZMA ,) |
| 692 | USE_FEATURE_TAR_FROM( OPTBIT_INCLUDE_FROM,) |
| 693 | USE_FEATURE_TAR_FROM( OPTBIT_EXCLUDE_FROM,) |
| 694 | USE_FEATURE_TAR_GZIP( OPTBIT_GZIP ,) |
| 695 | USE_FEATURE_TAR_COMPRESS(OPTBIT_COMPRESS ,) |
| 696 | OPTBIT_NOPRESERVE_OWN, |
| 697 | OPTBIT_NOPRESERVE_PERM, |
| 698 | OPT_TEST = 1 << 0, // t |
| 699 | OPT_EXTRACT = 1 << 1, // x |
| 700 | OPT_BASEDIR = 1 << 2, // C |
| 701 | OPT_TARNAME = 1 << 3, // f |
| 702 | OPT_2STDOUT = 1 << 4, // O |
| 703 | OPT_P = 1 << 5, // p |
| 704 | OPT_VERBOSE = 1 << 6, // v |
| 705 | OPT_KEEP_OLD = 1 << 7, // k |
| 706 | OPT_CREATE = USE_FEATURE_TAR_CREATE( (1<<OPTBIT_CREATE )) + 0, // c |
| 707 | OPT_DEREFERENCE = USE_FEATURE_TAR_CREATE( (1<<OPTBIT_DEREFERENCE )) + 0, // h |
| 708 | OPT_BZIP2 = USE_FEATURE_TAR_BZIP2( (1<<OPTBIT_BZIP2 )) + 0, // j |
| 709 | OPT_LZMA = USE_FEATURE_TAR_LZMA( (1<<OPTBIT_LZMA )) + 0, // a |
| 710 | OPT_INCLUDE_FROM = USE_FEATURE_TAR_FROM( (1<<OPTBIT_INCLUDE_FROM)) + 0, // T |
| 711 | OPT_EXCLUDE_FROM = USE_FEATURE_TAR_FROM( (1<<OPTBIT_EXCLUDE_FROM)) + 0, // X |
| 712 | OPT_GZIP = USE_FEATURE_TAR_GZIP( (1<<OPTBIT_GZIP )) + 0, // z |
| 713 | OPT_COMPRESS = USE_FEATURE_TAR_COMPRESS((1<<OPTBIT_COMPRESS )) + 0, // Z |
| 714 | OPT_NOPRESERVE_OWN = 1 << OPTBIT_NOPRESERVE_OWN , // no-same-owner |
| 715 | OPT_NOPRESERVE_PERM = 1 << OPTBIT_NOPRESERVE_PERM, // no-same-permissions |
| 716 | }; |
| 717 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 718 | static const char tar_longopts[] = |
| 719 | "list\0" No_argument "t" |
| 720 | "extract\0" No_argument "x" |
| 721 | "directory\0" Required_argument "C" |
| 722 | "file\0" Required_argument "f" |
| 723 | "to-stdout\0" No_argument "O" |
| 724 | "same-permissions\0" No_argument "p" |
| 725 | "verbose\0" No_argument "v" |
| 726 | "keep-old\0" No_argument "k" |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 727 | # if ENABLE_FEATURE_TAR_CREATE |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 728 | "create\0" No_argument "c" |
| 729 | "dereference\0" No_argument "h" |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 730 | # endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 731 | # if ENABLE_FEATURE_TAR_BZIP2 |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 732 | "bzip2\0" No_argument "j" |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 733 | # endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 734 | # if ENABLE_FEATURE_TAR_LZMA |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 735 | "lzma\0" No_argument "a" |
Rob Landley | c1d6990 | 2006-01-20 18:28:50 +0000 | [diff] [blame] | 736 | # endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 737 | # if ENABLE_FEATURE_TAR_FROM |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 738 | "files-from\0" Required_argument "T" |
| 739 | "exclude-from\0" Required_argument "X" |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 740 | # endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 741 | # if ENABLE_FEATURE_TAR_GZIP |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 742 | "gzip\0" No_argument "z" |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 743 | # endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 744 | # if ENABLE_FEATURE_TAR_COMPRESS |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 745 | "compress\0" No_argument "Z" |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 746 | # endif |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 747 | "no-same-owner\0" No_argument "\xfd" |
| 748 | "no-same-permissions\0" No_argument "\xfe" |
Denis Vlasenko | 30d7a34 | 2006-11-27 20:24:40 +0000 | [diff] [blame] | 749 | /* --exclude takes next bit position in option mask, */ |
| 750 | /* therefore we have to either put it _after_ --no-same-perm */ |
| 751 | /* or add OPT[BIT]_EXCLUDE before OPT[BIT]_NOPRESERVE_OWN */ |
| 752 | # if ENABLE_FEATURE_TAR_FROM |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 753 | "exclude\0" Required_argument "\xff" |
Denis Vlasenko | 30d7a34 | 2006-11-27 20:24:40 +0000 | [diff] [blame] | 754 | # endif |
Denis Vlasenko | 990d0f6 | 2007-07-24 15:54:42 +0000 | [diff] [blame^] | 755 | ; |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 756 | #endif |
Glenn L McGrath | ec87d37 | 2002-11-27 07:52:22 +0000 | [diff] [blame] | 757 | |
Denis Vlasenko | 06af216 | 2007-02-03 17:28:39 +0000 | [diff] [blame] | 758 | int tar_main(int argc, char **argv); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 759 | int tar_main(int argc, char **argv) |
| 760 | { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 761 | char (*get_header_ptr)(archive_handle_t *) = get_header_tar; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 762 | archive_handle_t *tar_handle; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 763 | char *base_dir = NULL; |
Glenn L McGrath | f66de64 | 2002-11-25 23:57:27 +0000 | [diff] [blame] | 764 | const char *tar_filename = "-"; |
Denis Vlasenko | 67b23e6 | 2006-10-03 21:00:06 +0000 | [diff] [blame] | 765 | unsigned opt; |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 766 | int verboseFlag = 0; |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 767 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM |
"Vladimir N. Oleynik" | 84e7511 | 2005-10-15 06:32:38 +0000 | [diff] [blame] | 768 | llist_t *excludes = NULL; |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 769 | #endif |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 770 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 771 | /* Initialise default values */ |
| 772 | tar_handle = init_handle(); |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 773 | tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS |
| 774 | | ARCHIVE_PRESERVE_DATE |
| 775 | | ARCHIVE_EXTRACT_UNCONDITIONAL; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 776 | |
"Vladimir N. Oleynik" | f704b27 | 2005-10-14 09:56:52 +0000 | [diff] [blame] | 777 | /* Prepend '-' to the first argument if required */ |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 778 | opt_complementary = "--:" // first arg is options |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 779 | "tt:vv:" // count -t,-v |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 780 | "?:" // bail out with usage instead of error return |
| 781 | "X::T::" // cumulative lists |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 782 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM |
Denis Vlasenko | 30d7a34 | 2006-11-27 20:24:40 +0000 | [diff] [blame] | 783 | "\xff::" // cumulative lists for --exclude |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 784 | #endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 785 | USE_FEATURE_TAR_CREATE("c:") "t:x:" // at least one of these is reqd |
| 786 | USE_FEATURE_TAR_CREATE("c--tx:t--cx:x--ct") // mutually exclusive |
| 787 | SKIP_FEATURE_TAR_CREATE("t--x:x--t"); // mutually exclusive |
Denis Vlasenko | c61852a | 2006-11-29 11:09:43 +0000 | [diff] [blame] | 788 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS |
Denis Vlasenko | bdc88fd | 2007-07-23 17:14:14 +0000 | [diff] [blame] | 789 | applet_long_options = tar_longopts; |
Denis Vlasenko | c61852a | 2006-11-29 11:09:43 +0000 | [diff] [blame] | 790 | #endif |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 791 | opt = getopt32(argc, argv, |
| 792 | "txC:f:Opvk" |
| 793 | USE_FEATURE_TAR_CREATE( "ch" ) |
| 794 | USE_FEATURE_TAR_BZIP2( "j" ) |
| 795 | USE_FEATURE_TAR_LZMA( "a" ) |
| 796 | USE_FEATURE_TAR_FROM( "T:X:") |
| 797 | USE_FEATURE_TAR_GZIP( "z" ) |
| 798 | USE_FEATURE_TAR_COMPRESS("Z" ) |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 799 | , &base_dir // -C dir |
| 800 | , &tar_filename // -f filename |
| 801 | USE_FEATURE_TAR_FROM(, &(tar_handle->accept)) // T |
| 802 | USE_FEATURE_TAR_FROM(, &(tar_handle->reject)) // X |
| 803 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM |
| 804 | , &excludes // --exclude |
| 805 | #endif |
| 806 | , &verboseFlag // combined count for -t and -v |
| 807 | , &verboseFlag // combined count for -t and -v |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 808 | ); |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 809 | |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 810 | if (verboseFlag) tar_handle->action_header = header_verbose_list; |
| 811 | if (verboseFlag == 1) tar_handle->action_header = header_list; |
| 812 | |
Denis Vlasenko | b596335 | 2006-11-26 01:46:59 +0000 | [diff] [blame] | 813 | if (opt & OPT_EXTRACT) |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 814 | tar_handle->action_data = data_extract_all; |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 815 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 816 | if (opt & OPT_2STDOUT) |
Glenn L McGrath | 3b9fc8f | 2003-11-18 20:23:04 +0000 | [diff] [blame] | 817 | tar_handle->action_data = data_extract_to_stdout; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 818 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 819 | if (opt & OPT_KEEP_OLD) |
Glenn L McGrath | 3b9fc8f | 2003-11-18 20:23:04 +0000 | [diff] [blame] | 820 | tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL; |
Glenn L McGrath | eba86e2 | 2003-11-14 12:53:42 +0000 | [diff] [blame] | 821 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 822 | if (opt & OPT_NOPRESERVE_OWN) |
Rob Landley | f3d6c94 | 2005-10-27 22:49:08 +0000 | [diff] [blame] | 823 | tar_handle->flags |= ARCHIVE_NOPRESERVE_OWN; |
| 824 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 825 | if (opt & OPT_NOPRESERVE_PERM) |
Rob Landley | f3d6c94 | 2005-10-27 22:49:08 +0000 | [diff] [blame] | 826 | tar_handle->flags |= ARCHIVE_NOPRESERVE_PERM; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 827 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 828 | if (opt & OPT_GZIP) |
Glenn L McGrath | eba86e2 | 2003-11-14 12:53:42 +0000 | [diff] [blame] | 829 | get_header_ptr = get_header_tar_gz; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 830 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 831 | if (opt & OPT_BZIP2) |
Glenn L McGrath | 3b9fc8f | 2003-11-18 20:23:04 +0000 | [diff] [blame] | 832 | get_header_ptr = get_header_tar_bz2; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 833 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 834 | if (opt & OPT_LZMA) |
Rob Landley | c1d6990 | 2006-01-20 18:28:50 +0000 | [diff] [blame] | 835 | get_header_ptr = get_header_tar_lzma; |
| 836 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 837 | if (opt & OPT_COMPRESS) |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 838 | get_header_ptr = get_header_tar_Z; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 839 | |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 840 | #if ENABLE_FEATURE_TAR_FROM |
| 841 | tar_handle->reject = append_file_list_to_list(tar_handle->reject); |
| 842 | #if ENABLE_FEATURE_TAR_LONG_OPTIONS |
| 843 | /* Append excludes to reject */ |
| 844 | while (excludes) { |
| 845 | llist_t *next = excludes->link; |
| 846 | excludes->link = tar_handle->reject; |
| 847 | tar_handle->reject = excludes; |
| 848 | excludes = next; |
Glenn L McGrath | 56f16b4 | 2003-11-18 21:37:52 +0000 | [diff] [blame] | 849 | } |
Denis Vlasenko | 8c0164c | 2007-02-04 21:30:35 +0000 | [diff] [blame] | 850 | #endif |
| 851 | tar_handle->accept = append_file_list_to_list(tar_handle->accept); |
| 852 | #endif |
Glenn L McGrath | ce91c8a | 2003-12-26 14:01:37 +0000 | [diff] [blame] | 853 | |
Glenn L McGrath | 2983330 | 2002-10-06 23:25:23 +0000 | [diff] [blame] | 854 | /* Check if we are reading from stdin */ |
"Vladimir N. Oleynik" | 84e7511 | 2005-10-15 06:32:38 +0000 | [diff] [blame] | 855 | if (argv[optind] && *argv[optind] == '-') { |
Glenn L McGrath | 2983330 | 2002-10-06 23:25:23 +0000 | [diff] [blame] | 856 | /* 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] | 857 | optind++; |
| 858 | } |
| 859 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 860 | /* Setup an array of filenames to work with */ |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 861 | /* TODO: This is the same as in ar, separate function ? */ |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 862 | while (optind < argc) { |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 863 | /* kill trailing '/' unless the string is just "/" */ |
| 864 | char *cp = last_char_is(argv[optind], '/'); |
| 865 | if (cp > argv[optind]) |
| 866 | *cp = '\0'; |
Denis Vlasenko | 8d9f495 | 2007-04-08 15:08:42 +0000 | [diff] [blame] | 867 | llist_add_to_end(&tar_handle->accept, argv[optind]); |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 868 | optind++; |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 869 | } |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 870 | |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 871 | if (tar_handle->accept || tar_handle->reject) |
Glenn L McGrath | c5c1a8a | 2002-10-19 06:19:22 +0000 | [diff] [blame] | 872 | tar_handle->filter = filter_accept_reject_list; |
Glenn L McGrath | a0ee881 | 2002-08-22 13:44:08 +0000 | [diff] [blame] | 873 | |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 874 | /* Open the tar file */ |
| 875 | { |
| 876 | FILE *tar_stream; |
| 877 | int flags; |
| 878 | |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 879 | if (opt & OPT_CREATE) { |
Glenn L McGrath | ba49651 | 2003-11-20 09:06:10 +0000 | [diff] [blame] | 880 | /* Make sure there is at least one file to tar up. */ |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 881 | if (tar_handle->accept == NULL) |
| 882 | bb_error_msg_and_die("empty archive"); |
| 883 | |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 884 | tar_stream = stdout; |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 885 | /* Mimicking GNU tar 1.15.1: */ |
| 886 | flags = O_WRONLY|O_CREAT|O_TRUNC; |
| 887 | /* was doing unlink; open(O_WRONLY|O_CREAT|O_EXCL); why? */ |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 888 | } else { |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 889 | tar_stream = stdin; |
| 890 | flags = O_RDONLY; |
| 891 | } |
| 892 | |
Denis Vlasenko | 9f73944 | 2006-12-16 23:49:13 +0000 | [diff] [blame] | 893 | if (LONE_DASH(tar_filename)) { |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 894 | tar_handle->src_fd = fileno(tar_stream); |
Denis Vlasenko | 1385899 | 2006-10-08 12:49:22 +0000 | [diff] [blame] | 895 | tar_handle->seek = seek_by_read; |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 896 | } else { |
Denis Vlasenko | cf749bc | 2006-11-26 15:45:17 +0000 | [diff] [blame] | 897 | tar_handle->src_fd = xopen(tar_filename, flags); |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 898 | } |
| 899 | } |
| 900 | |
Bernhard Reutner-Fischer | d9cf7ac | 2006-04-12 18:39:58 +0000 | [diff] [blame] | 901 | if (base_dir) |
Rob Landley | 86b4d64 | 2006-08-03 17:58:17 +0000 | [diff] [blame] | 902 | xchdir(base_dir); |
Glenn L McGrath | 91b3d46 | 2003-10-02 14:33:23 +0000 | [diff] [blame] | 903 | |
Denis Vlasenko | c888946 | 2006-12-17 19:08:20 +0000 | [diff] [blame] | 904 | #ifdef CHECK_FOR_CHILD_EXITCODE |
| 905 | /* We need to know whether child (gzip/bzip/etc) exits abnormally */ |
| 906 | signal(SIGCHLD, handle_SIGCHLD); |
| 907 | #endif |
| 908 | |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 909 | /* create an archive */ |
Denis Vlasenko | d031ffa | 2006-11-24 21:54:44 +0000 | [diff] [blame] | 910 | if (opt & OPT_CREATE) { |
Rob Landley | cc8885f | 2005-08-30 03:40:03 +0000 | [diff] [blame] | 911 | int zipMode = 0; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 912 | if (ENABLE_FEATURE_TAR_GZIP && get_header_ptr == get_header_tar_gz) |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 913 | zipMode = 1; |
Rob Landley | 60fe7bf | 2005-10-16 03:54:49 +0000 | [diff] [blame] | 914 | if (ENABLE_FEATURE_TAR_BZIP2 && get_header_ptr == get_header_tar_bz2) |
Tim Riker | c1ef7bd | 2006-01-25 00:08:53 +0000 | [diff] [blame] | 915 | zipMode = 2; |
Denis Vlasenko | c888946 | 2006-12-17 19:08:20 +0000 | [diff] [blame] | 916 | /* NB: writeTarFile() closes tar_handle->src_fd */ |
| 917 | return writeTarFile(tar_handle->src_fd, verboseFlag, opt & OPT_DEREFERENCE, |
Bernhard Reutner-Fischer | 18260d5 | 2006-04-18 14:17:49 +0000 | [diff] [blame] | 918 | tar_handle->accept, |
Denis Vlasenko | 3feb2fc | 2006-11-24 21:55:55 +0000 | [diff] [blame] | 919 | tar_handle->reject, zipMode); |
Glenn L McGrath | 98f824a | 2002-10-19 00:46:35 +0000 | [diff] [blame] | 920 | } |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 921 | |
Denis Vlasenko | b8a8e60 | 2006-11-24 14:59:45 +0000 | [diff] [blame] | 922 | while (get_header_ptr(tar_handle) == EXIT_SUCCESS) |
| 923 | /* nothing */; |
| 924 | |
| 925 | /* Check that every file that should have been extracted was */ |
| 926 | while (tar_handle->accept) { |
| 927 | if (!find_list_entry(tar_handle->reject, tar_handle->accept->data) |
| 928 | && !find_list_entry(tar_handle->passed, tar_handle->accept->data) |
| 929 | ) { |
| 930 | bb_error_msg_and_die("%s: not found in archive", |
| 931 | tar_handle->accept->data); |
| 932 | } |
| 933 | tar_handle->accept = tar_handle->accept->link; |
| 934 | } |
| 935 | if (ENABLE_FEATURE_CLEAN_UP /* && tar_handle->src_fd != STDIN_FILENO */) |
Glenn L McGrath | 8132e93 | 2002-09-28 02:06:39 +0000 | [diff] [blame] | 936 | close(tar_handle->src_fd); |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 937 | |
Denis Vlasenko | 376ce1e | 2006-11-24 14:51:01 +0000 | [diff] [blame] | 938 | return EXIT_SUCCESS; |
Glenn L McGrath | 2e772ed | 2001-10-05 02:58:48 +0000 | [diff] [blame] | 939 | } |