1 /* vi: set sw=4 ts=4: */
3 * Mini tar implementation for busybox
5 * Modifed to use common extraction code used by ar, cpio, dpkg-deb, dpkg
6 * Glenn McGrath <bug1@optushome.com.au>
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
10 * very different now (i.e., cleaner, less global variables, etc.)
12 * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
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.
20 * Based in part on the tar implementation from busybox-0.28
21 * Copyright (C) 1995 Bruce Perens
22 * This is free software under the GNU General Public License.
24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by
26 * the Free Software Foundation; either version 2 of the License, or
27 * (at your option) any later version.
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
32 * General Public License for more details.
34 * You should have received a copy of the GNU General Public License
35 * along with this program; if not, write to the Free Software
36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
51 #include <sys/socket.h>
52 #include "unarchive.h"
55 #ifdef CONFIG_FEATURE_TAR_CREATE
57 /* Tar file constants */
58 # define TAR_MAGIC "ustar" /* ustar and a null */
59 # define TAR_VERSION " " /* Be compatable with GNU tar format */
62 # define MAJOR(dev) (((dev)>>8)&0xff)
63 # define MINOR(dev) ((dev)&0xff)
66 static const int TAR_BLOCK_SIZE = 512;
67 static const int TAR_MAGIC_LEN = 6;
68 static const int TAR_VERSION_LEN = 2;
70 /* POSIX tar Header Block, from POSIX 1003.1-1990 */
71 enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
72 struct TarHeader { /* byte offset */
73 char name[NAME_SIZE]; /* 0-99 */
74 char mode[8]; /* 100-107 */
75 char uid[8]; /* 108-115 */
76 char gid[8]; /* 116-123 */
77 char size[12]; /* 124-135 */
78 char mtime[12]; /* 136-147 */
79 char chksum[8]; /* 148-155 */
80 char typeflag; /* 156-156 */
81 char linkname[NAME_SIZE]; /* 157-256 */
82 char magic[6]; /* 257-262 */
83 char version[2]; /* 263-264 */
84 char uname[32]; /* 265-296 */
85 char gname[32]; /* 297-328 */
86 char devmajor[8]; /* 329-336 */
87 char devminor[8]; /* 337-344 */
88 char prefix[155]; /* 345-499 */
89 char padding[12]; /* 500-512 (pad to exactly the TAR_BLOCK_SIZE) */
91 typedef struct TarHeader TarHeader;
94 ** writeTarFile(), writeFileToTarball(), and writeTarHeader() are
95 ** the only functions that deal with the HardLinkInfo structure.
96 ** Even these functions use the xxxHardLinkInfo() functions.
98 typedef struct HardLinkInfo HardLinkInfo;
100 HardLinkInfo *next; /* Next entry in list */
101 dev_t dev; /* Device number */
102 ino_t ino; /* Inode number */
103 short linkCount; /* (Hard) Link Count */
104 char name[1]; /* Start of filename (must be last) */
107 /* Some info to be carried along when creating a new tarball */
109 char *fileName; /* File name of the tarball */
110 int tarFd; /* Open-for-write file descriptor
112 struct stat statBuf; /* Stat info for the tarball, letting
113 us know the inode and device that the
114 tarball lives, so we can avoid trying
115 to include the tarball into itself */
116 int verboseFlag; /* Whether to print extra stuff or not */
117 const llist_t *excludeList; /* List of files to not include */
118 HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
119 HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
121 typedef struct TarBallInfo TarBallInfo;
123 /* A nice enum with all the possible tar file content types */
125 REGTYPE = '0', /* regular file */
126 REGTYPE0 = '\0', /* regular file (ancient bug compat) */
127 LNKTYPE = '1', /* hard link */
128 SYMTYPE = '2', /* symbolic link */
129 CHRTYPE = '3', /* character special */
130 BLKTYPE = '4', /* block special */
131 DIRTYPE = '5', /* directory */
132 FIFOTYPE = '6', /* FIFO special */
133 CONTTYPE = '7', /* reserved */
134 GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
135 GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
137 typedef enum TarFileType TarFileType;
139 /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
140 static inline void addHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr,
141 struct stat *statbuf,
144 /* Note: hlInfoHeadPtr can never be NULL! */
145 HardLinkInfo *hlInfo;
147 hlInfo = (HardLinkInfo *) xmalloc(sizeof(HardLinkInfo) + strlen(name));
148 hlInfo->next = *hlInfoHeadPtr;
149 *hlInfoHeadPtr = hlInfo;
150 hlInfo->dev = statbuf->st_dev;
151 hlInfo->ino = statbuf->st_ino;
152 hlInfo->linkCount = statbuf->st_nlink;
153 strcpy(hlInfo->name, name);
156 static void freeHardLinkInfo(HardLinkInfo ** hlInfoHeadPtr)
158 HardLinkInfo *hlInfo = NULL;
159 HardLinkInfo *hlInfoNext = NULL;
162 hlInfo = *hlInfoHeadPtr;
164 hlInfoNext = hlInfo->next;
168 *hlInfoHeadPtr = NULL;
173 /* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
174 static inline HardLinkInfo *findHardLinkInfo(HardLinkInfo * hlInfo, struct stat *statbuf)
177 if ((statbuf->st_ino == hlInfo->ino) && (statbuf->st_dev == hlInfo->dev))
179 hlInfo = hlInfo->next;
184 /* Put an octal string into the specified buffer.
185 * The number is zero and space padded and possibly null padded.
186 * Returns TRUE if successful. */
187 static int putOctal(char *cp, int len, long value)
191 char *tempString = tempBuffer;
193 /* Create a string of the specified length with an initial space,
194 * leading zeroes and the octal number, and a trailing null. */
195 sprintf(tempString, "%0*lo", len - 1, value);
197 /* If the string is too large, suppress the leading space. */
198 tempLength = strlen(tempString) + 1;
199 if (tempLength > len) {
204 /* If the string is still too large, suppress the trailing null. */
205 if (tempLength > len)
208 /* If the string is still too large, fail. */
209 if (tempLength > len)
212 /* Copy the string to the field. */
213 memcpy(cp, tempString, len);
218 /* Write out a tar header for the specified file/directory/whatever */
219 static inline int writeTarHeader(struct TarBallInfo *tbInfo,
220 const char *header_name,
221 const char *real_name, struct stat *statbuf)
224 struct TarHeader header;
225 const unsigned char *cp = (const unsigned char *) &header;
226 ssize_t size = sizeof(struct TarHeader);
228 memset(&header, 0, size);
230 strncpy(header.name, header_name, sizeof(header.name));
232 putOctal(header.mode, sizeof(header.mode), statbuf->st_mode);
233 putOctal(header.uid, sizeof(header.uid), statbuf->st_uid);
234 putOctal(header.gid, sizeof(header.gid), statbuf->st_gid);
235 putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */
236 putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime);
237 strncpy(header.magic, TAR_MAGIC TAR_VERSION,
238 TAR_MAGIC_LEN + TAR_VERSION_LEN);
240 /* Enter the user and group names (default to root if it fails) */
241 if (my_getpwuid(header.uname, statbuf->st_uid) == NULL)
242 strcpy(header.uname, "root");
243 if (my_getgrgid(header.gname, statbuf->st_gid) == NULL)
244 strcpy(header.gname, "root");
246 if (tbInfo->hlInfo) {
247 /* This is a hard link */
248 header.typeflag = LNKTYPE;
249 strncpy(header.linkname, tbInfo->hlInfo->name,
250 sizeof(header.linkname));
251 } else if (S_ISLNK(statbuf->st_mode)) {
252 char *lpath = xreadlink(real_name);
254 if (!lpath) /* Already printed err msg inside xreadlink() */
256 header.typeflag = SYMTYPE;
257 strncpy(header.linkname, lpath, sizeof(header.linkname));
259 } else if (S_ISDIR(statbuf->st_mode)) {
260 header.typeflag = DIRTYPE;
261 strncat(header.name, "/", sizeof(header.name));
262 } else if (S_ISCHR(statbuf->st_mode)) {
263 header.typeflag = CHRTYPE;
264 putOctal(header.devmajor, sizeof(header.devmajor),
265 MAJOR(statbuf->st_rdev));
266 putOctal(header.devminor, sizeof(header.devminor),
267 MINOR(statbuf->st_rdev));
268 } else if (S_ISBLK(statbuf->st_mode)) {
269 header.typeflag = BLKTYPE;
270 putOctal(header.devmajor, sizeof(header.devmajor),
271 MAJOR(statbuf->st_rdev));
272 putOctal(header.devminor, sizeof(header.devminor),
273 MINOR(statbuf->st_rdev));
274 } else if (S_ISFIFO(statbuf->st_mode)) {
275 header.typeflag = FIFOTYPE;
276 } else if (S_ISREG(statbuf->st_mode)) {
277 header.typeflag = REGTYPE;
278 putOctal(header.size, sizeof(header.size), statbuf->st_size);
280 bb_error_msg("%s: Unknown file type", real_name);
284 /* Calculate and store the checksum (i.e., the sum of all of the bytes of
285 * the header). The checksum field must be filled with blanks for the
286 * calculation. The checksum field is formatted differently from the
287 * other fields: it has [6] digits, a null, then a space -- rather than
288 * digits, followed by a null like the other fields... */
289 memset(header.chksum, ' ', sizeof(header.chksum));
290 cp = (const unsigned char *) &header;
293 putOctal(header.chksum, 7, chksum);
295 /* Now write the header out to disk */
297 bb_full_write(tbInfo->tarFd, (char *) &header,
298 sizeof(struct TarHeader))) < 0) {
299 bb_error_msg(bb_msg_io_error, real_name);
302 /* Pad the header up to the tar block size */
303 for (; size < TAR_BLOCK_SIZE; size++) {
304 write(tbInfo->tarFd, "\0", 1);
306 /* Now do the verbose thing (or not) */
308 if (tbInfo->verboseFlag) {
311 if (tbInfo->tarFd == fileno(stdout)) /* If the archive goes to stdout, verbose to stderr */
314 fprintf(vbFd, "%s\n", header.name);
320 # if defined CONFIG_FEATURE_TAR_EXCLUDE
321 static inline int exclude_file(const llist_t *excluded_files, const char *file)
323 if (excluded_files == NULL) {
327 while (excluded_files) {
328 if (excluded_files->data[0] == '/') {
329 if (fnmatch(excluded_files->data, file,
330 FNM_PATHNAME | FNM_LEADING_DIR) == 0)
335 for (p = file; p[0] != '\0'; p++) {
336 if ((p == file || p[-1] == '/') && p[0] != '/' &&
337 fnmatch(excluded_files->data, p,
338 FNM_PATHNAME | FNM_LEADING_DIR) == 0)
342 excluded_files = excluded_files->link;
349 static int writeFileToTarball(const char *fileName, struct stat *statbuf,
352 struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
353 const char *header_name;
356 ** Check to see if we are dealing with a hard link.
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.
362 tbInfo->hlInfo = NULL;
363 if (statbuf->st_nlink > 1) {
364 tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf);
365 if (tbInfo->hlInfo == NULL)
366 addHardLinkInfo(&tbInfo->hlInfoHead, statbuf, fileName);
369 /* It is against the rules to archive a socket */
370 if (S_ISSOCK(statbuf->st_mode)) {
371 bb_error_msg("%s: socket ignored", fileName);
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
378 if (tbInfo->statBuf.st_dev == statbuf->st_dev &&
379 tbInfo->statBuf.st_ino == statbuf->st_ino) {
380 bb_error_msg("%s: file is the archive; skipping", fileName);
384 header_name = fileName;
385 while (header_name[0] == '/') {
386 static int alreadyWarned = FALSE;
388 if (alreadyWarned == FALSE) {
389 bb_error_msg("Removing leading '/' from member names");
390 alreadyWarned = TRUE;
395 if (strlen(fileName) >= NAME_SIZE) {
396 bb_error_msg(bb_msg_name_longer_than_foo, NAME_SIZE);
400 if (header_name[0] == '\0')
403 # if defined CONFIG_FEATURE_TAR_EXCLUDE
404 if (exclude_file(tbInfo->excludeList, header_name)) {
407 # endif /* CONFIG_FEATURE_TAR_EXCLUDE */
409 if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
413 /* Now, if the file is a regular file, copy it out to the tarball */
414 if ((tbInfo->hlInfo == NULL)
415 && (S_ISREG(statbuf->st_mode))) {
418 ssize_t size = 0, readSize = 0;
420 /* open the file we want to archive, and make sure all is well */
421 if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
422 bb_perror_msg("%s: Cannot open", fileName);
426 /* write the file to the archive */
427 while ((size = bb_full_read(inputFileFd, buffer, sizeof(buffer))) > 0) {
428 if (bb_full_write(tbInfo->tarFd, buffer, size) != size) {
429 /* Output file seems to have a problem */
430 bb_error_msg(bb_msg_io_error, fileName);
436 bb_error_msg(bb_msg_io_error, fileName);
439 /* Pad the file up to the tar block size */
440 for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
441 write(tbInfo->tarFd, "\0", 1);
449 static inline int writeTarFile(const int tar_fd, const int verboseFlag,
450 const llist_t *include, const llist_t *exclude, const int gzip)
452 #ifdef CONFIG_FEATURE_TAR_GZIP
453 int gzipDataPipe[2] = { -1, -1 };
454 int gzipStatusPipe[2] = { -1, -1 };
456 volatile int vfork_exec_errno = 0;
459 int errorFlag = FALSE;
461 struct TarBallInfo tbInfo;
463 tbInfo.hlInfoHead = NULL;
465 fchmod(tar_fd, 0644);
466 tbInfo.tarFd = tar_fd;
467 tbInfo.verboseFlag = verboseFlag;
469 /* Store the stat info for the tarball's file, so
470 * can avoid including the tarball into itself.... */
471 if (fstat(tbInfo.tarFd, &tbInfo.statBuf) < 0)
472 bb_perror_msg_and_die("Couldnt stat tar file");
474 #ifdef CONFIG_FEATURE_TAR_GZIP
476 if (pipe(gzipDataPipe) < 0 || pipe(gzipStatusPipe) < 0) {
477 bb_perror_msg_and_die("Failed to create gzip pipe");
480 signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
483 /* Avoid vfork clobbering */
491 dup2(gzipDataPipe[0], 0);
492 close(gzipDataPipe[1]);
494 if (tbInfo.tarFd != 1);
495 dup2(tbInfo.tarFd, 1);
497 close(gzipStatusPipe[0]);
498 fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */
500 execl("/bin/gzip", "gzip", "-f", 0);
501 vfork_exec_errno = errno;
503 close(gzipStatusPipe[1]);
505 } else if (gzipPid > 0) {
506 close(gzipDataPipe[0]);
507 close(gzipStatusPipe[1]);
512 int n = bb_full_read(gzipStatusPipe[0], &buf, 1);
514 if (n == 0 && vfork_exec_errno != 0) {
515 errno = vfork_exec_errno;
516 bb_perror_msg_and_die("Could not exec gzip process");
517 } else if ((n < 0) && (errno == EAGAIN || errno == EINTR))
518 continue; /* try it again */
521 close(gzipStatusPipe[0]);
523 tbInfo.tarFd = gzipDataPipe[1];
525 bb_perror_msg_and_die("Failed to vfork gzip process");
530 tbInfo.excludeList = exclude;
532 /* Read the directory/files and iterate over them one at a time */
534 if (!recursive_action(include->data, TRUE, FALSE, FALSE,
535 writeFileToTarball, writeFileToTarball,
539 include = include->link;
541 /* Write two empty blocks to the end of the archive */
542 for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) {
543 write(tbInfo.tarFd, "\0", 1);
546 /* To be pedantically correct, we would check if the tarball
547 * is smaller than 20 tar blocks, and pad it if it was smaller,
548 * but that isn't necessary for GNU tar interoperability, and
549 * so is considered a waste of space */
551 /* Hang up the tools, close up shop, head home */
554 bb_error_msg("Error exit delayed from previous errors");
556 freeHardLinkInfo(&tbInfo.hlInfoHead);
558 #ifdef CONFIG_FEATURE_TAR_GZIP
559 if (gzip && gzipPid) {
560 if (waitpid(gzipPid, NULL, 0) == -1)
561 printf("Couldnt wait ?");
567 #endif /* tar_create */
569 #ifdef CONFIG_FEATURE_TAR_EXCLUDE
570 static llist_t *append_file_list_to_list(llist_t *list)
576 llist_t *newlist = NULL;
579 src_stream = bb_xfopen(cur->data, "r");
583 while((line = bb_get_chomped_line_from_file(src_stream)) != NULL) {
584 newlist = llist_add_to(newlist, line);
592 #ifdef CONFIG_FEATURE_TAR_COMPRESS
593 static char get_header_tar_Z(archive_handle_t *archive_handle)
595 /* Cant lseek over pipe's */
596 archive_handle->seek = seek_by_char;
598 /* do the decompression, and cleanup */
599 if ((bb_xread_char(archive_handle->src_fd) != 0x1f) || (bb_xread_char(archive_handle->src_fd) != 0x9d)) {
600 bb_error_msg_and_die("Invalid magic");
603 archive_handle->src_fd = open_transformer(archive_handle->src_fd, uncompress);
604 archive_handle->offset = 0;
605 while (get_header_tar(archive_handle) == EXIT_SUCCESS);
607 /* Can only do one file at a time */
608 return(EXIT_FAILURE);
612 static const char tar_options[]="ctxjT:X:C:f:OpvzkZ";
616 #define CTX_EXTRACT 4
617 #define TAR_OPT_BZIP2 8
618 #define TAR_OPT_INCLUDE 16
619 #define TAR_OPT_EXCLUDE 32
620 #define TAR_OPT_BASEDIR 64
621 #define TAR_OPT_ARNAME 128
622 #define TAR_OPT_2STDOUT 256
623 #define TAR_OPT_P 512
624 #define TAR_OPT_VERBOSE 1024
625 #define TAR_OPT_GZIP 2048
626 #define TAR_OPT_KEEP_OLD 4096
627 #define TAR_OPT_UNCOMPRESS 8192
629 int tar_main(int argc, char **argv)
631 char (*get_header_ptr)(archive_handle_t *) = get_header_tar;
632 archive_handle_t *tar_handle;
634 char *base_dir = NULL;
635 const char *tar_filename = "-";
636 unsigned char ctx_flag = 0;
642 /* Prepend '-' to the first argument if required */
643 if (argv[1][0] != '-') {
646 bb_xasprintf(&tmp, "-%s", argv[1]);
650 /* Initialise default values */
651 tar_handle = init_handle();
652 tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE | ARCHIVE_EXTRACT_UNCONDITIONAL;
654 bb_opt_complementaly = "c~tx:t~cx:x~ct:X*";
655 opt = bb_getopt_ulflags(argc, argv, tar_options,
656 NULL, /* T: arg is ignored by default
657 a list is an include list */
658 &(tar_handle->reject),
659 &base_dir, /* Change to dir <optarg> */
660 &tar_filename); /* archive filename */
661 /* Check one and only one context option was given */
662 if(opt & 0x80000000UL)
664 ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT);
668 if(ctx_flag & CTX_TEST) {
669 if ((tar_handle->action_header == header_list) ||
670 (tar_handle->action_header == header_verbose_list)) {
671 tar_handle->action_header = header_verbose_list;
673 tar_handle->action_header = header_list;
676 if(ctx_flag & CTX_EXTRACT) {
677 if (tar_handle->action_data != data_extract_to_stdout)
678 tar_handle->action_data = data_extract_all;
680 if(opt & TAR_OPT_2STDOUT) {
682 tar_handle->action_data = data_extract_to_stdout;
684 if(opt & TAR_OPT_VERBOSE) {
685 if ((tar_handle->action_header == header_list) ||
686 (tar_handle->action_header == header_verbose_list))
688 tar_handle->action_header = header_verbose_list;
690 tar_handle->action_header = header_list;
693 if (opt & TAR_OPT_KEEP_OLD) {
694 tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL;
697 if(opt & TAR_OPT_GZIP) {
698 #ifdef CONFIG_FEATURE_TAR_GZIP
699 get_header_ptr = get_header_tar_gz;
704 if(opt & TAR_OPT_BZIP2) {
705 #ifdef CONFIG_FEATURE_TAR_BZIP2
706 get_header_ptr = get_header_tar_bz2;
711 if(opt & TAR_OPT_UNCOMPRESS) {
712 #ifdef CONFIG_FEATURE_TAR_COMPRESS
713 get_header_ptr = get_header_tar_Z;
718 if(opt & TAR_OPT_EXCLUDE) {
719 #ifdef CONFIG_FEATURE_TAR_EXCLUDE
720 tar_handle->reject = append_file_list_to_list(tar_handle->reject);
725 /* Check if we are reading from stdin */
726 if ((argv[optind]) && (*argv[optind] == '-')) {
727 /* Default is to read from stdin, so just skip to next arg */
731 /* Setup an array of filenames to work with */
732 /* TODO: This is the same as in ar, seperate function ? */
733 while (optind < argc) {
735 filename_ptr = last_char_is(argv[optind], '/');
737 *filename_ptr = '\0';
739 tar_handle->accept = llist_add_to(tar_handle->accept, argv[optind]);
743 if ((tar_handle->accept) || (tar_handle->reject)) {
744 tar_handle->filter = filter_accept_reject_list;
747 /* Open the tar file */
752 #ifdef CONFIG_FEATURE_TAR_CREATE
753 if (ctx_flag == CTX_CREATE) {
754 /* Make sure there is at least one file to tar up. */
755 if (tar_handle->accept == NULL) {
756 bb_error_msg_and_die("Cowardly refusing to create an empty archive");
759 flags = O_WRONLY | O_CREAT | O_EXCL;
760 unlink(tar_filename);
768 if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) {
769 tar_handle->src_fd = fileno(tar_stream);
770 tar_handle->seek = seek_by_char;
772 tar_handle->src_fd = bb_xopen(tar_filename, flags);
776 if ((base_dir) && (chdir(base_dir))) {
777 bb_perror_msg_and_die("Couldnt chdir to %s", base_dir);
780 #ifdef CONFIG_FEATURE_TAR_CREATE
781 /* create an archive */
782 if (ctx_flag == CTX_CREATE) {
783 int verboseFlag = FALSE;
784 int gzipFlag = FALSE;
786 # ifdef CONFIG_FEATURE_TAR_GZIP
787 if (get_header_ptr == get_header_tar_gz) {
790 # endif /* CONFIG_FEATURE_TAR_GZIP */
791 # ifdef CONFIG_FEATURE_TAR_BZIP2
792 if (get_header_ptr == get_header_tar_bz2) {
793 bb_error_msg_and_die("Creating bzip2 compressed archives is not currently supported.");
795 # endif /* CONFIG_FEATURE_TAR_BZIP2 */
797 if ((tar_handle->action_header == header_list) ||
798 (tar_handle->action_header == header_verbose_list)) {
801 writeTarFile(tar_handle->src_fd, verboseFlag, tar_handle->accept,
802 tar_handle->reject, gzipFlag);
804 #endif /* CONFIG_FEATURE_TAR_CREATE */
806 while (get_header_ptr(tar_handle) == EXIT_SUCCESS);
808 /* Ckeck that every file that should have been extracted was */
809 while (tar_handle->accept) {
810 if (find_list_entry(tar_handle->reject, tar_handle->accept->data) == NULL) {
811 if (find_list_entry(tar_handle->passed, tar_handle->accept->data) == NULL) {
812 bb_error_msg_and_die("%s: Not found in archive\n", tar_handle->accept->data);
815 tar_handle->accept = tar_handle->accept->link;
819 #ifdef CONFIG_FEATURE_CLEAN_UP
820 if (tar_handle->src_fd != fileno(stdin)) {
821 close(tar_handle->src_fd);
823 #endif /* CONFIG_FEATURE_CLEAN_UP */
825 return(EXIT_SUCCESS);