[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/archival/tar.c b/ap/app/busybox/src/archival/tar.c
new file mode 100644
index 0000000..f46f7bb
--- /dev/null
+++ b/ap/app/busybox/src/archival/tar.c
@@ -0,0 +1,1120 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini tar implementation for busybox
+ *
+ * Modified to use common extraction code used by ar, cpio, dpkg-deb, dpkg
+ * by Glenn McGrath
+ *
+ * Note, that as of BusyBox-0.43, tar has been completely rewritten from the
+ * ground up. It still has remnants of the old code lying about, but it is
+ * very different now (i.e., cleaner, less global variables, etc.)
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Based in part in the tar implementation in sash
+ * Copyright (c) 1999 by David I. Bell
+ * Permission is granted to use, distribute, or modify this source,
+ * provided that this copyright notice remains intact.
+ * Permission to distribute sash derived code under GPL has been granted.
+ *
+ * Based in part on the tar implementation from busybox-0.28
+ * Copyright (C) 1995 Bruce Perens
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+/* TODO: security with -C DESTDIR option can be enhanced.
+ * Consider tar file created via:
+ * $ tar cvf bug.tar anything.txt
+ * $ ln -s /tmp symlink
+ * $ tar --append -f bug.tar symlink
+ * $ rm symlink
+ * $ mkdir symlink
+ * $ tar --append -f bug.tar symlink/evil.py
+ *
+ * This will result in an archive which contains:
+ * $ tar --list -f bug.tar
+ * anything.txt
+ * symlink
+ * symlink/evil.py
+ *
+ * Untarring it puts evil.py in '/tmp' even if the -C DESTDIR is given.
+ * This doesn't feel right, and IIRC GNU tar doesn't do that.
+ */
+
+#include <fnmatch.h>
+#include "libbb.h"
+#include "bb_archive.h"
+/* FIXME: Stop using this non-standard feature */
+#ifndef FNM_LEADING_DIR
+# define FNM_LEADING_DIR 0
+#endif
+
+
+//#define DBG(fmt, ...) bb_error_msg("%s: " fmt, __func__, ## __VA_ARGS__)
+#define DBG(...) ((void)0)
+
+
+#define block_buf bb_common_bufsiz1
+
+
+#if !ENABLE_FEATURE_SEAMLESS_GZ && !ENABLE_FEATURE_SEAMLESS_BZ2
+/* Do not pass gzip flag to writeTarFile() */
+#define writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude, gzip) \
+ writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude)
+#endif
+
+
+#if ENABLE_FEATURE_TAR_CREATE
+
+/*
+** writeTarFile(), writeFileToTarball(), and writeTarHeader() are
+** the only functions that deal with the HardLinkInfo structure.
+** Even these functions use the xxxHardLinkInfo() functions.
+*/
+typedef struct HardLinkInfo {
+ struct HardLinkInfo *next; /* Next entry in list */
+ dev_t dev; /* Device number */
+ ino_t ino; /* Inode number */
+// short linkCount; /* (Hard) Link Count */
+ char name[1]; /* Start of filename (must be last) */
+} HardLinkInfo;
+
+/* Some info to be carried along when creating a new tarball */
+typedef struct TarBallInfo {
+ int tarFd; /* Open-for-write file descriptor
+ * for the tarball */
+ int verboseFlag; /* Whether to print extra stuff or not */
+ const llist_t *excludeList; /* List of files to not include */
+ HardLinkInfo *hlInfoHead; /* Hard Link Tracking Information */
+ HardLinkInfo *hlInfo; /* Hard Link Info for the current file */
+//TODO: save only st_dev + st_ino
+ struct stat tarFileStatBuf; /* Stat info for the tarball, letting
+ * us know the inode and device that the
+ * tarball lives, so we can avoid trying
+ * to include the tarball into itself */
+} TarBallInfo;
+
+/* A nice enum with all the possible tar file content types */
+enum {
+ REGTYPE = '0', /* regular file */
+ REGTYPE0 = '\0', /* regular file (ancient bug compat) */
+ LNKTYPE = '1', /* hard link */
+ SYMTYPE = '2', /* symbolic link */
+ CHRTYPE = '3', /* character special */
+ BLKTYPE = '4', /* block special */
+ DIRTYPE = '5', /* directory */
+ FIFOTYPE = '6', /* FIFO special */
+ CONTTYPE = '7', /* reserved */
+ GNULONGLINK = 'K', /* GNU long (>100 chars) link name */
+ GNULONGNAME = 'L', /* GNU long (>100 chars) file name */
+};
+
+/* Might be faster (and bigger) if the dev/ino were stored in numeric order;) */
+static void addHardLinkInfo(HardLinkInfo **hlInfoHeadPtr,
+ struct stat *statbuf,
+ const char *fileName)
+{
+ /* Note: hlInfoHeadPtr can never be NULL! */
+ HardLinkInfo *hlInfo;
+
+ hlInfo = xmalloc(sizeof(HardLinkInfo) + strlen(fileName));
+ hlInfo->next = *hlInfoHeadPtr;
+ *hlInfoHeadPtr = hlInfo;
+ hlInfo->dev = statbuf->st_dev;
+ hlInfo->ino = statbuf->st_ino;
+// hlInfo->linkCount = statbuf->st_nlink;
+ strcpy(hlInfo->name, fileName);
+}
+
+static void freeHardLinkInfo(HardLinkInfo **hlInfoHeadPtr)
+{
+ HardLinkInfo *hlInfo;
+ HardLinkInfo *hlInfoNext;
+
+ if (hlInfoHeadPtr) {
+ hlInfo = *hlInfoHeadPtr;
+ while (hlInfo) {
+ hlInfoNext = hlInfo->next;
+ free(hlInfo);
+ hlInfo = hlInfoNext;
+ }
+ *hlInfoHeadPtr = NULL;
+ }
+}
+
+/* Might be faster (and bigger) if the dev/ino were stored in numeric order ;) */
+static HardLinkInfo *findHardLinkInfo(HardLinkInfo *hlInfo, struct stat *statbuf)
+{
+ while (hlInfo) {
+ if (statbuf->st_ino == hlInfo->ino
+ && statbuf->st_dev == hlInfo->dev
+ ) {
+ DBG("found hardlink:'%s'", hlInfo->name);
+ break;
+ }
+ hlInfo = hlInfo->next;
+ }
+ return hlInfo;
+}
+
+/* Put an octal string into the specified buffer.
+ * The number is zero padded and possibly null terminated.
+ * Stores low-order bits only if whole value does not fit. */
+static void putOctal(char *cp, int len, off_t value)
+{
+ char tempBuffer[sizeof(off_t)*3 + 1];
+ char *tempString = tempBuffer;
+ int width;
+
+ width = sprintf(tempBuffer, "%0*"OFF_FMT"o", len, value);
+ tempString += (width - len);
+
+ /* If string has leading zeroes, we can drop one */
+ /* and field will have trailing '\0' */
+ /* (increases chances of compat with other tars) */
+ if (tempString[0] == '0')
+ tempString++;
+
+ /* Copy the string to the field */
+ memcpy(cp, tempString, len);
+}
+#define PUT_OCTAL(a, b) putOctal((a), sizeof(a), (b))
+
+static void chksum_and_xwrite(int fd, struct tar_header_t* hp)
+{
+ /* POSIX says that checksum is done on unsigned bytes
+ * (Sun and HP-UX gets it wrong... more details in
+ * GNU tar source) */
+ const unsigned char *cp;
+ int chksum, size;
+
+ strcpy(hp->magic, "ustar ");
+
+ /* Calculate and store the checksum (i.e., the sum of all of the bytes of
+ * the header). The checksum field must be filled with blanks for the
+ * calculation. The checksum field is formatted differently from the
+ * other fields: it has 6 digits, a null, then a space -- rather than
+ * digits, followed by a null like the other fields... */
+ memset(hp->chksum, ' ', sizeof(hp->chksum));
+ cp = (const unsigned char *) hp;
+ chksum = 0;
+ size = sizeof(*hp);
+ do { chksum += *cp++; } while (--size);
+ putOctal(hp->chksum, sizeof(hp->chksum)-1, chksum);
+
+ /* Now write the header out to disk */
+ xwrite(fd, hp, sizeof(*hp));
+}
+
+#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+static void writeLongname(int fd, int type, const char *name, int dir)
+{
+ static const struct {
+ char mode[8]; /* 100-107 */
+ char uid[8]; /* 108-115 */
+ char gid[8]; /* 116-123 */
+ char size[12]; /* 124-135 */
+ char mtime[12]; /* 136-147 */
+ } prefilled = {
+ "0000000",
+ "0000000",
+ "0000000",
+ "00000000000",
+ "00000000000",
+ };
+ struct tar_header_t header;
+ int size;
+
+ dir = !!dir; /* normalize: 0/1 */
+ size = strlen(name) + 1 + dir; /* GNU tar uses strlen+1 */
+ /* + dir: account for possible '/' */
+
+ memset(&header, 0, sizeof(header));
+ strcpy(header.name, "././@LongLink");
+ memcpy(header.mode, prefilled.mode, sizeof(prefilled));
+ PUT_OCTAL(header.size, size);
+ header.typeflag = type;
+ chksum_and_xwrite(fd, &header);
+
+ /* Write filename[/] and pad the block. */
+ /* dir=0: writes 'name<NUL>', pads */
+ /* dir=1: writes 'name', writes '/<NUL>', pads */
+ dir *= 2;
+ xwrite(fd, name, size - dir);
+ xwrite(fd, "/", dir);
+ size = (-size) & (TAR_BLOCK_SIZE-1);
+ memset(&header, 0, size);
+ xwrite(fd, &header, size);
+}
+#endif
+
+/* Write out a tar header for the specified file/directory/whatever */
+static int writeTarHeader(struct TarBallInfo *tbInfo,
+ const char *header_name, const char *fileName, struct stat *statbuf)
+{
+ struct tar_header_t header;
+
+ memset(&header, 0, sizeof(header));
+
+ strncpy(header.name, header_name, sizeof(header.name));
+
+ /* POSIX says to mask mode with 07777. */
+ PUT_OCTAL(header.mode, statbuf->st_mode & 07777);
+ PUT_OCTAL(header.uid, statbuf->st_uid);
+ PUT_OCTAL(header.gid, statbuf->st_gid);
+ memset(header.size, '0', sizeof(header.size)-1); /* Regular file size is handled later */
+ /* users report that files with negative st_mtime cause trouble, so: */
+ PUT_OCTAL(header.mtime, statbuf->st_mtime >= 0 ? statbuf->st_mtime : 0);
+
+ /* Enter the user and group names */
+ safe_strncpy(header.uname, get_cached_username(statbuf->st_uid), sizeof(header.uname));
+ safe_strncpy(header.gname, get_cached_groupname(statbuf->st_gid), sizeof(header.gname));
+
+ if (tbInfo->hlInfo) {
+ /* This is a hard link */
+ header.typeflag = LNKTYPE;
+ strncpy(header.linkname, tbInfo->hlInfo->name,
+ sizeof(header.linkname));
+#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+ /* Write out long linkname if needed */
+ if (header.linkname[sizeof(header.linkname)-1])
+ writeLongname(tbInfo->tarFd, GNULONGLINK,
+ tbInfo->hlInfo->name, 0);
+#endif
+ } else if (S_ISLNK(statbuf->st_mode)) {
+ char *lpath = xmalloc_readlink_or_warn(fileName);
+ if (!lpath)
+ return FALSE;
+ header.typeflag = SYMTYPE;
+ strncpy(header.linkname, lpath, sizeof(header.linkname));
+#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+ /* Write out long linkname if needed */
+ if (header.linkname[sizeof(header.linkname)-1])
+ writeLongname(tbInfo->tarFd, GNULONGLINK, lpath, 0);
+#else
+ /* If it is larger than 100 bytes, bail out */
+ if (header.linkname[sizeof(header.linkname)-1]) {
+ free(lpath);
+ bb_error_msg("names longer than "NAME_SIZE_STR" chars not supported");
+ return FALSE;
+ }
+#endif
+ free(lpath);
+ } else if (S_ISDIR(statbuf->st_mode)) {
+ header.typeflag = DIRTYPE;
+ /* Append '/' only if there is a space for it */
+ if (!header.name[sizeof(header.name)-1])
+ header.name[strlen(header.name)] = '/';
+ } else if (S_ISCHR(statbuf->st_mode)) {
+ header.typeflag = CHRTYPE;
+ PUT_OCTAL(header.devmajor, major(statbuf->st_rdev));
+ PUT_OCTAL(header.devminor, minor(statbuf->st_rdev));
+ } else if (S_ISBLK(statbuf->st_mode)) {
+ header.typeflag = BLKTYPE;
+ PUT_OCTAL(header.devmajor, major(statbuf->st_rdev));
+ PUT_OCTAL(header.devminor, minor(statbuf->st_rdev));
+ } else if (S_ISFIFO(statbuf->st_mode)) {
+ header.typeflag = FIFOTYPE;
+ } else if (S_ISREG(statbuf->st_mode)) {
+ /* header.size field is 12 bytes long */
+ /* Does octal-encoded size fit? */
+ uoff_t filesize = statbuf->st_size;
+ if (sizeof(filesize) <= 4
+ || filesize <= (uoff_t)0777777777777LL
+ ) {
+ PUT_OCTAL(header.size, filesize);
+ }
+ /* Does base256-encoded size fit?
+ * It always does unless off_t is wider than 64 bits.
+ */
+ else if (ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+#if ULLONG_MAX > 0xffffffffffffffffLL /* 2^64-1 */
+ && (filesize <= 0x3fffffffffffffffffffffffLL)
+#endif
+ ) {
+ /* GNU tar uses "base-256 encoding" for very large numbers.
+ * Encoding is binary, with highest bit always set as a marker
+ * and sign in next-highest bit:
+ * 80 00 .. 00 - zero
+ * bf ff .. ff - largest positive number
+ * ff ff .. ff - minus 1
+ * c0 00 .. 00 - smallest negative number
+ */
+ char *p8 = header.size + sizeof(header.size);
+ do {
+ *--p8 = (uint8_t)filesize;
+ filesize >>= 8;
+ } while (p8 != header.size);
+ *p8 |= 0x80;
+ } else {
+ bb_error_msg_and_die("can't store file '%s' "
+ "of size %"OFF_FMT"u, aborting",
+ fileName, statbuf->st_size);
+ }
+ header.typeflag = REGTYPE;
+ } else {
+ bb_error_msg("%s: unknown file type", fileName);
+ return FALSE;
+ }
+
+#if ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+ /* Write out long name if needed */
+ /* (we, like GNU tar, output long linkname *before* long name) */
+ if (header.name[sizeof(header.name)-1])
+ writeLongname(tbInfo->tarFd, GNULONGNAME,
+ header_name, S_ISDIR(statbuf->st_mode));
+#endif
+
+ /* Now write the header out to disk */
+ chksum_and_xwrite(tbInfo->tarFd, &header);
+
+ /* Now do the verbose thing (or not) */
+ if (tbInfo->verboseFlag) {
+ FILE *vbFd = stdout;
+
+ /* If archive goes to stdout, verbose goes to stderr */
+ if (tbInfo->tarFd == STDOUT_FILENO)
+ vbFd = stderr;
+ /* GNU "tar cvvf" prints "extended" listing a-la "ls -l" */
+ /* We don't have such excesses here: for us "v" == "vv" */
+ /* '/' is probably a GNUism */
+ fprintf(vbFd, "%s%s\n", header_name,
+ S_ISDIR(statbuf->st_mode) ? "/" : "");
+ }
+
+ return TRUE;
+}
+
+#if ENABLE_FEATURE_TAR_FROM
+static int exclude_file(const llist_t *excluded_files, const char *file)
+{
+ while (excluded_files) {
+ if (excluded_files->data[0] == '/') {
+ if (fnmatch(excluded_files->data, file,
+ FNM_PATHNAME | FNM_LEADING_DIR) == 0)
+ return 1;
+ } else {
+ const char *p;
+
+ for (p = file; p[0] != '\0'; p++) {
+ if ((p == file || p[-1] == '/')
+ && p[0] != '/'
+ && fnmatch(excluded_files->data, p,
+ FNM_PATHNAME | FNM_LEADING_DIR) == 0
+ ) {
+ return 1;
+ }
+ }
+ }
+ excluded_files = excluded_files->link;
+ }
+
+ return 0;
+}
+#else
+# define exclude_file(excluded_files, file) 0
+#endif
+
+static int FAST_FUNC writeFileToTarball(const char *fileName, struct stat *statbuf,
+ void *userData, int depth UNUSED_PARAM)
+{
+ struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
+ const char *header_name;
+ int inputFileFd = -1;
+
+ DBG("writeFileToTarball('%s')", fileName);
+
+ /* Strip leading '/' and such (must be before memorizing hardlink's name) */
+ header_name = strip_unsafe_prefix(fileName);
+
+ if (header_name[0] == '\0')
+ return TRUE;
+
+ /* It is against the rules to archive a socket */
+ if (S_ISSOCK(statbuf->st_mode)) {
+ bb_error_msg("%s: socket ignored", fileName);
+ return TRUE;
+ }
+
+ /*
+ * Check to see if we are dealing with a hard link.
+ * If so -
+ * Treat the first occurance of a given dev/inode as a file while
+ * treating any additional occurances as hard links. This is done
+ * by adding the file information to the HardLinkInfo linked list.
+ */
+ tbInfo->hlInfo = NULL;
+ if (!S_ISDIR(statbuf->st_mode) && statbuf->st_nlink > 1) {
+ DBG("'%s': st_nlink > 1", header_name);
+ tbInfo->hlInfo = findHardLinkInfo(tbInfo->hlInfoHead, statbuf);
+ if (tbInfo->hlInfo == NULL) {
+ DBG("'%s': addHardLinkInfo", header_name);
+ addHardLinkInfo(&tbInfo->hlInfoHead, statbuf, header_name);
+ }
+ }
+
+ /* It is a bad idea to store the archive we are in the process of creating,
+ * so check the device and inode to be sure that this particular file isn't
+ * the new tarball */
+ if (tbInfo->tarFileStatBuf.st_dev == statbuf->st_dev
+ && tbInfo->tarFileStatBuf.st_ino == statbuf->st_ino
+ ) {
+ bb_error_msg("%s: file is the archive; skipping", fileName);
+ return TRUE;
+ }
+
+ if (exclude_file(tbInfo->excludeList, header_name))
+ return SKIP;
+
+#if !ENABLE_FEATURE_TAR_GNU_EXTENSIONS
+ if (strlen(header_name) >= NAME_SIZE) {
+ bb_error_msg("names longer than "NAME_SIZE_STR" chars not supported");
+ return TRUE;
+ }
+#endif
+
+ /* Is this a regular file? */
+ if (tbInfo->hlInfo == NULL && S_ISREG(statbuf->st_mode)) {
+ /* open the file we want to archive, and make sure all is well */
+ inputFileFd = open_or_warn(fileName, O_RDONLY);
+ if (inputFileFd < 0) {
+ return FALSE;
+ }
+ }
+
+ /* Add an entry to the tarball */
+ if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
+ return FALSE;
+ }
+
+ /* If it was a regular file, write out the body */
+ if (inputFileFd >= 0) {
+ size_t readSize;
+ /* Write the file to the archive. */
+ /* We record size into header first, */
+ /* and then write out file. If file shrinks in between, */
+ /* tar will be corrupted. So we don't allow for that. */
+ /* NB: GNU tar 1.16 warns and pads with zeroes */
+ /* or even seeks back and updates header */
+ bb_copyfd_exact_size(inputFileFd, tbInfo->tarFd, statbuf->st_size);
+ ////off_t readSize;
+ ////readSize = bb_copyfd_size(inputFileFd, tbInfo->tarFd, statbuf->st_size);
+ ////if (readSize != statbuf->st_size && readSize >= 0) {
+ //// bb_error_msg_and_die("short read from %s, aborting", fileName);
+ ////}
+
+ /* Check that file did not grow in between? */
+ /* if (safe_read(inputFileFd, 1) == 1) warn but continue? */
+
+ close(inputFileFd);
+
+ /* Pad the file up to the tar block size */
+ /* (a few tricks here in the name of code size) */
+ readSize = (-(int)statbuf->st_size) & (TAR_BLOCK_SIZE-1);
+ memset(block_buf, 0, readSize);
+ xwrite(tbInfo->tarFd, block_buf, readSize);
+ }
+
+ return TRUE;
+}
+
+#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2
+# if !(ENABLE_FEATURE_SEAMLESS_GZ && ENABLE_FEATURE_SEAMLESS_BZ2)
+# define vfork_compressor(tar_fd, gzip) vfork_compressor(tar_fd)
+# endif
+/* Don't inline: vfork scares gcc and pessimizes code */
+static void NOINLINE vfork_compressor(int tar_fd, int gzip)
+{
+ pid_t gzipPid;
+# if ENABLE_FEATURE_SEAMLESS_GZ && ENABLE_FEATURE_SEAMLESS_BZ2
+ const char *zip_exec = (gzip == 1) ? "gzip" : "bzip2";
+# elif ENABLE_FEATURE_SEAMLESS_GZ
+ const char *zip_exec = "gzip";
+# else /* only ENABLE_FEATURE_SEAMLESS_BZ2 */
+ const char *zip_exec = "bzip2";
+# endif
+ // On Linux, vfork never unpauses parent early, although standard
+ // allows for that. Do we want to waste bytes checking for it?
+# define WAIT_FOR_CHILD 0
+ volatile int vfork_exec_errno = 0;
+ struct fd_pair gzipDataPipe;
+# if WAIT_FOR_CHILD
+ struct fd_pair gzipStatusPipe;
+ xpiped_pair(gzipStatusPipe);
+# endif
+ xpiped_pair(gzipDataPipe);
+
+ signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
+
+# if defined(__GNUC__) && __GNUC__
+ /* Avoid vfork clobbering */
+ (void) &zip_exec;
+# endif
+
+ gzipPid = xvfork();
+
+ if (gzipPid == 0) {
+ /* child */
+ /* NB: close _first_, then move fds! */
+ close(gzipDataPipe.wr);
+# if WAIT_FOR_CHILD
+ close(gzipStatusPipe.rd);
+ /* gzipStatusPipe.wr will close only on exec -
+ * parent waits for this close to happen */
+ fcntl(gzipStatusPipe.wr, F_SETFD, FD_CLOEXEC);
+# endif
+ xmove_fd(gzipDataPipe.rd, 0);
+ xmove_fd(tar_fd, 1);
+ /* exec gzip/bzip2 program/applet */
+ BB_EXECLP(zip_exec, zip_exec, "-f", NULL);
+ vfork_exec_errno = errno;
+ _exit(EXIT_FAILURE);
+ }
+
+ /* parent */
+ xmove_fd(gzipDataPipe.wr, tar_fd);
+ close(gzipDataPipe.rd);
+# if WAIT_FOR_CHILD
+ close(gzipStatusPipe.wr);
+ while (1) {
+ char buf;
+ int n;
+
+ /* Wait until child execs (or fails to) */
+ n = full_read(gzipStatusPipe.rd, &buf, 1);
+ if (n < 0 /* && errno == EAGAIN */)
+ continue; /* try it again */
+ }
+ close(gzipStatusPipe.rd);
+# endif
+ if (vfork_exec_errno) {
+ errno = vfork_exec_errno;
+ bb_perror_msg_and_die("can't execute '%s'", zip_exec);
+ }
+}
+#endif /* ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2 */
+
+
+/* gcc 4.2.1 inlines it, making code bigger */
+static NOINLINE int writeTarFile(int tar_fd, int verboseFlag,
+ int recurseFlags, const llist_t *include,
+ const llist_t *exclude, int gzip)
+{
+ int errorFlag = FALSE;
+ struct TarBallInfo tbInfo;
+
+ tbInfo.hlInfoHead = NULL;
+ tbInfo.tarFd = tar_fd;
+ tbInfo.verboseFlag = verboseFlag;
+
+ /* Store the stat info for the tarball's file, so
+ * can avoid including the tarball into itself.... */
+ xfstat(tbInfo.tarFd, &tbInfo.tarFileStatBuf, "can't stat tar file");
+
+#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2
+ if (gzip)
+ vfork_compressor(tbInfo.tarFd, gzip);
+#endif
+
+ tbInfo.excludeList = exclude;
+
+ /* Read the directory/files and iterate over them one at a time */
+ while (include) {
+ if (!recursive_action(include->data, recurseFlags,
+ writeFileToTarball, writeFileToTarball, &tbInfo, 0)
+ ) {
+ errorFlag = TRUE;
+ }
+ include = include->link;
+ }
+ /* Write two empty blocks to the end of the archive */
+ memset(block_buf, 0, 2*TAR_BLOCK_SIZE);
+ xwrite(tbInfo.tarFd, block_buf, 2*TAR_BLOCK_SIZE);
+
+ /* To be pedantically correct, we would check if the tarball
+ * is smaller than 20 tar blocks, and pad it if it was smaller,
+ * but that isn't necessary for GNU tar interoperability, and
+ * so is considered a waste of space */
+
+ /* Close so the child process (if any) will exit */
+ close(tbInfo.tarFd);
+
+ /* Hang up the tools, close up shop, head home */
+ if (ENABLE_FEATURE_CLEAN_UP)
+ freeHardLinkInfo(&tbInfo.hlInfoHead);
+
+ if (errorFlag)
+ bb_error_msg("error exit delayed from previous errors");
+
+#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2
+ if (gzip) {
+ int status;
+ if (safe_waitpid(-1, &status, 0) == -1)
+ bb_perror_msg("waitpid");
+ else if (!WIFEXITED(status) || WEXITSTATUS(status))
+ /* gzip was killed or has exited with nonzero! */
+ errorFlag = TRUE;
+ }
+#endif
+ return errorFlag;
+}
+#else
+int writeTarFile(int tar_fd, int verboseFlag,
+ int recurseFlags, const llist_t *include,
+ const llist_t *exclude, int gzip);
+#endif /* FEATURE_TAR_CREATE */
+
+#if ENABLE_FEATURE_TAR_FROM
+static llist_t *append_file_list_to_list(llist_t *list)
+{
+ FILE *src_stream;
+ char *line;
+ llist_t *newlist = NULL;
+
+ while (list) {
+ src_stream = xfopen_stdin(llist_pop(&list));
+ while ((line = xmalloc_fgetline(src_stream)) != NULL) {
+ /* kill trailing '/' unless the string is just "/" */
+ char *cp = last_char_is(line, '/');
+ if (cp > line)
+ *cp = '\0';
+ llist_add_to(&newlist, line);
+ }
+ fclose(src_stream);
+ }
+ return newlist;
+}
+#else
+# define append_file_list_to_list(x) 0
+#endif
+
+//usage:#define tar_trivial_usage
+//usage: "-[" IF_FEATURE_TAR_CREATE("c") "xt"
+//usage: IF_FEATURE_SEAMLESS_Z("Z")
+//usage: IF_FEATURE_SEAMLESS_GZ("z")
+//usage: IF_FEATURE_SEAMLESS_XZ("J")
+//usage: IF_FEATURE_SEAMLESS_BZ2("j")
+//usage: IF_FEATURE_SEAMLESS_LZMA("a")
+//usage: IF_FEATURE_TAR_CREATE("h")
+//usage: IF_FEATURE_TAR_NOPRESERVE_TIME("m")
+//usage: "vO] "
+//usage: IF_FEATURE_TAR_FROM("[-X FILE] [-T FILE] ")
+//usage: "[-f TARFILE] [-C DIR] [FILE]..."
+//usage:#define tar_full_usage "\n\n"
+//usage: IF_FEATURE_TAR_CREATE("Create, extract, ")
+//usage: IF_NOT_FEATURE_TAR_CREATE("Extract ")
+//usage: "or list files from a tar file\n"
+//usage: "\nOperation:"
+//usage: IF_FEATURE_TAR_CREATE(
+//usage: "\n c Create"
+//usage: )
+//usage: "\n x Extract"
+//usage: "\n t List"
+//usage: "\n f Name of TARFILE ('-' for stdin/out)"
+//usage: "\n C Change to DIR before operation"
+//usage: "\n v Verbose"
+//usage: IF_FEATURE_SEAMLESS_Z(
+//usage: "\n Z (De)compress using compress"
+//usage: )
+//usage: IF_FEATURE_SEAMLESS_GZ(
+//usage: "\n z (De)compress using gzip"
+//usage: )
+//usage: IF_FEATURE_SEAMLESS_XZ(
+//usage: "\n J (De)compress using xz"
+//usage: )
+//usage: IF_FEATURE_SEAMLESS_BZ2(
+//usage: "\n j (De)compress using bzip2"
+//usage: )
+//usage: IF_FEATURE_SEAMLESS_LZMA(
+//usage: "\n a (De)compress using lzma"
+//usage: )
+//usage: "\n O Extract to stdout"
+//usage: IF_FEATURE_TAR_CREATE(
+//usage: "\n h Follow symlinks"
+//usage: )
+//usage: IF_FEATURE_TAR_NOPRESERVE_TIME(
+//usage: "\n m Don't restore mtime"
+//usage: )
+//usage: IF_FEATURE_TAR_FROM(
+//usage: IF_FEATURE_TAR_LONG_OPTIONS(
+//usage: "\n exclude File to exclude"
+//usage: )
+//usage: "\n X File with names to exclude"
+//usage: "\n T File with names to include"
+//usage: )
+//usage:
+//usage:#define tar_example_usage
+//usage: "$ zcat /tmp/tarball.tar.gz | tar -xf -\n"
+//usage: "$ tar -cf /tmp/tarball.tar /usr/local\n"
+
+// Supported but aren't in --help:
+// o no-same-owner
+// p same-permissions
+// k keep-old
+// no-recursion
+// numeric-owner
+// no-same-permissions
+// overwrite
+//IF_FEATURE_TAR_TO_COMMAND(
+// to-command
+//)
+
+enum {
+ OPTBIT_KEEP_OLD = 8,
+ IF_FEATURE_TAR_CREATE( OPTBIT_CREATE ,)
+ IF_FEATURE_TAR_CREATE( OPTBIT_DEREFERENCE ,)
+ IF_FEATURE_SEAMLESS_BZ2( OPTBIT_BZIP2 ,)
+ IF_FEATURE_SEAMLESS_LZMA(OPTBIT_LZMA ,)
+ IF_FEATURE_TAR_FROM( OPTBIT_INCLUDE_FROM,)
+ IF_FEATURE_TAR_FROM( OPTBIT_EXCLUDE_FROM,)
+ IF_FEATURE_SEAMLESS_GZ( OPTBIT_GZIP ,)
+ IF_FEATURE_SEAMLESS_XZ( OPTBIT_XZ ,) // 16th bit
+ IF_FEATURE_SEAMLESS_Z( OPTBIT_COMPRESS ,)
+ IF_FEATURE_TAR_NOPRESERVE_TIME(OPTBIT_NOPRESERVE_TIME,)
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS
+ OPTBIT_NORECURSION,
+ IF_FEATURE_TAR_TO_COMMAND(OPTBIT_2COMMAND ,)
+ OPTBIT_NUMERIC_OWNER,
+ OPTBIT_NOPRESERVE_PERM,
+ OPTBIT_OVERWRITE,
+#endif
+ OPT_TEST = 1 << 0, // t
+ OPT_EXTRACT = 1 << 1, // x
+ OPT_BASEDIR = 1 << 2, // C
+ OPT_TARNAME = 1 << 3, // f
+ OPT_2STDOUT = 1 << 4, // O
+ OPT_NOPRESERVE_OWNER = 1 << 5, // o == no-same-owner
+ OPT_P = 1 << 6, // p
+ OPT_VERBOSE = 1 << 7, // v
+ OPT_KEEP_OLD = 1 << 8, // k
+ OPT_CREATE = IF_FEATURE_TAR_CREATE( (1 << OPTBIT_CREATE )) + 0, // c
+ OPT_DEREFERENCE = IF_FEATURE_TAR_CREATE( (1 << OPTBIT_DEREFERENCE )) + 0, // h
+ OPT_BZIP2 = IF_FEATURE_SEAMLESS_BZ2( (1 << OPTBIT_BZIP2 )) + 0, // j
+ OPT_LZMA = IF_FEATURE_SEAMLESS_LZMA((1 << OPTBIT_LZMA )) + 0, // a
+ OPT_INCLUDE_FROM = IF_FEATURE_TAR_FROM( (1 << OPTBIT_INCLUDE_FROM)) + 0, // T
+ OPT_EXCLUDE_FROM = IF_FEATURE_TAR_FROM( (1 << OPTBIT_EXCLUDE_FROM)) + 0, // X
+ OPT_GZIP = IF_FEATURE_SEAMLESS_GZ( (1 << OPTBIT_GZIP )) + 0, // z
+ OPT_XZ = IF_FEATURE_SEAMLESS_XZ( (1 << OPTBIT_XZ )) + 0, // J
+ OPT_COMPRESS = IF_FEATURE_SEAMLESS_Z( (1 << OPTBIT_COMPRESS )) + 0, // Z
+ OPT_NOPRESERVE_TIME = IF_FEATURE_TAR_NOPRESERVE_TIME((1 << OPTBIT_NOPRESERVE_TIME)) + 0, // m
+ OPT_NORECURSION = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NORECURSION )) + 0, // no-recursion
+ OPT_2COMMAND = IF_FEATURE_TAR_TO_COMMAND( (1 << OPTBIT_2COMMAND )) + 0, // to-command
+ OPT_NUMERIC_OWNER = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NUMERIC_OWNER )) + 0, // numeric-owner
+ OPT_NOPRESERVE_PERM = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NOPRESERVE_PERM)) + 0, // no-same-permissions
+ OPT_OVERWRITE = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_OVERWRITE )) + 0, // overwrite
+
+ OPT_ANY_COMPRESS = (OPT_BZIP2 | OPT_LZMA | OPT_GZIP | OPT_XZ | OPT_COMPRESS),
+};
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS
+static const char tar_longopts[] ALIGN1 =
+ "list\0" No_argument "t"
+ "extract\0" No_argument "x"
+ "directory\0" Required_argument "C"
+ "file\0" Required_argument "f"
+ "to-stdout\0" No_argument "O"
+ /* do not restore owner */
+ /* Note: GNU tar handles 'o' as no-same-owner only on extract,
+ * on create, 'o' is --old-archive. We do not support --old-archive. */
+ "no-same-owner\0" No_argument "o"
+ "same-permissions\0" No_argument "p"
+ "verbose\0" No_argument "v"
+ "keep-old\0" No_argument "k"
+# if ENABLE_FEATURE_TAR_CREATE
+ "create\0" No_argument "c"
+ "dereference\0" No_argument "h"
+# endif
+# if ENABLE_FEATURE_SEAMLESS_BZ2
+ "bzip2\0" No_argument "j"
+# endif
+# if ENABLE_FEATURE_SEAMLESS_LZMA
+ "lzma\0" No_argument "a"
+# endif
+# if ENABLE_FEATURE_TAR_FROM
+ "files-from\0" Required_argument "T"
+ "exclude-from\0" Required_argument "X"
+# endif
+# if ENABLE_FEATURE_SEAMLESS_GZ
+ "gzip\0" No_argument "z"
+# endif
+# if ENABLE_FEATURE_SEAMLESS_XZ
+ "xz\0" No_argument "J"
+# endif
+# if ENABLE_FEATURE_SEAMLESS_Z
+ "compress\0" No_argument "Z"
+# endif
+# if ENABLE_FEATURE_TAR_NOPRESERVE_TIME
+ "touch\0" No_argument "m"
+# endif
+ "no-recursion\0" No_argument "\xfa"
+# if ENABLE_FEATURE_TAR_TO_COMMAND
+ "to-command\0" Required_argument "\xfb"
+# endif
+ /* use numeric uid/gid from tar header, not textual */
+ "numeric-owner\0" No_argument "\xfc"
+ /* do not restore mode */
+ "no-same-permissions\0" No_argument "\xfd"
+ /* on unpack, open with O_TRUNC and !O_EXCL */
+ "overwrite\0" No_argument "\xfe"
+ /* --exclude takes next bit position in option mask, */
+ /* therefore we have to put it _after_ --no-same-permissions */
+# if ENABLE_FEATURE_TAR_FROM
+ "exclude\0" Required_argument "\xff"
+# endif
+ ;
+#endif
+
+int tar_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int tar_main(int argc UNUSED_PARAM, char **argv)
+{
+ archive_handle_t *tar_handle;
+ char *base_dir = NULL;
+ const char *tar_filename = "-";
+ unsigned opt;
+ int verboseFlag = 0;
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM
+ llist_t *excludes = NULL;
+#endif
+
+ /* Initialise default values */
+ tar_handle = init_handle();
+ tar_handle->ah_flags = ARCHIVE_CREATE_LEADING_DIRS
+ | ARCHIVE_RESTORE_DATE
+ | ARCHIVE_UNLINK_OLD;
+
+ /* Apparently only root's tar preserves perms (see bug 3844) */
+ if (getuid() != 0)
+ tar_handle->ah_flags |= ARCHIVE_DONT_RESTORE_PERM;
+
+ /* Prepend '-' to the first argument if required */
+ opt_complementary = "--:" // first arg is options
+ "tt:vv:" // count -t,-v
+ IF_FEATURE_TAR_FROM("X::T::") // cumulative lists
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM
+ "\xff::" // cumulative lists for --exclude
+#endif
+ IF_FEATURE_TAR_CREATE("c:") "t:x:" // at least one of these is reqd
+ IF_FEATURE_TAR_CREATE("c--tx:t--cx:x--ct") // mutually exclusive
+ IF_NOT_FEATURE_TAR_CREATE("t--x:x--t"); // mutually exclusive
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS
+ applet_long_options = tar_longopts;
+#endif
+#if ENABLE_DESKTOP
+ if (argv[1] && argv[1][0] != '-') {
+ /* Compat:
+ * 1st argument without dash handles options with parameters
+ * differently from dashed one: it takes *next argv[i]*
+ * as paramenter even if there are more chars in 1st argument:
+ * "tar fx TARFILE" - "x" is not taken as f's param
+ * but is interpreted as -x option
+ * "tar -xf TARFILE" - dashed equivalent of the above
+ * "tar -fx ..." - "x" is taken as f's param
+ * getopt32 wouldn't handle 1st command correctly.
+ * Unfortunately, people do use such commands.
+ * We massage argv[1] to work around it by moving 'f'
+ * to the end of the string.
+ * More contrived "tar fCx TARFILE DIR" still fails,
+ * but such commands are much less likely to be used.
+ */
+ char *f = strchr(argv[1], 'f');
+ if (f) {
+ while (f[1] != '\0') {
+ *f = f[1];
+ f++;
+ }
+ *f = 'f';
+ }
+ }
+#endif
+ opt = getopt32(argv,
+ "txC:f:Oopvk"
+ IF_FEATURE_TAR_CREATE( "ch" )
+ IF_FEATURE_SEAMLESS_BZ2( "j" )
+ IF_FEATURE_SEAMLESS_LZMA("a" )
+ IF_FEATURE_TAR_FROM( "T:X:")
+ IF_FEATURE_SEAMLESS_GZ( "z" )
+ IF_FEATURE_SEAMLESS_XZ( "J" )
+ IF_FEATURE_SEAMLESS_Z( "Z" )
+ IF_FEATURE_TAR_NOPRESERVE_TIME("m")
+ , &base_dir // -C dir
+ , &tar_filename // -f filename
+ IF_FEATURE_TAR_FROM(, &(tar_handle->accept)) // T
+ IF_FEATURE_TAR_FROM(, &(tar_handle->reject)) // X
+ IF_FEATURE_TAR_TO_COMMAND(, &(tar_handle->tar__to_command)) // --to-command
+#if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM
+ , &excludes // --exclude
+#endif
+ , &verboseFlag // combined count for -t and -v
+ , &verboseFlag // combined count for -t and -v
+ );
+ //bb_error_msg("opt:%08x", opt);
+ argv += optind;
+
+ if (verboseFlag) tar_handle->action_header = header_verbose_list;
+ if (verboseFlag == 1) tar_handle->action_header = header_list;
+
+ if (opt & OPT_EXTRACT)
+ tar_handle->action_data = data_extract_all;
+
+ if (opt & OPT_2STDOUT)
+ tar_handle->action_data = data_extract_to_stdout;
+
+ if (opt & OPT_2COMMAND) {
+ putenv((char*)"TAR_FILETYPE=f");
+ signal(SIGPIPE, SIG_IGN);
+ tar_handle->action_data = data_extract_to_command;
+ IF_FEATURE_TAR_TO_COMMAND(tar_handle->tar__to_command_shell = xstrdup(get_shell_name());)
+ }
+
+ if (opt & OPT_KEEP_OLD)
+ tar_handle->ah_flags &= ~ARCHIVE_UNLINK_OLD;
+
+ if (opt & OPT_NUMERIC_OWNER)
+ tar_handle->ah_flags |= ARCHIVE_NUMERIC_OWNER;
+
+ if (opt & OPT_NOPRESERVE_OWNER)
+ tar_handle->ah_flags |= ARCHIVE_DONT_RESTORE_OWNER;
+
+ if (opt & OPT_NOPRESERVE_PERM)
+ tar_handle->ah_flags |= ARCHIVE_DONT_RESTORE_PERM;
+
+ if (opt & OPT_OVERWRITE) {
+ tar_handle->ah_flags &= ~ARCHIVE_UNLINK_OLD;
+ tar_handle->ah_flags |= ARCHIVE_O_TRUNC;
+ }
+
+ if (opt & OPT_NOPRESERVE_TIME)
+ tar_handle->ah_flags &= ~ARCHIVE_RESTORE_DATE;
+
+#if ENABLE_FEATURE_TAR_FROM
+ tar_handle->reject = append_file_list_to_list(tar_handle->reject);
+# if ENABLE_FEATURE_TAR_LONG_OPTIONS
+ /* Append excludes to reject */
+ while (excludes) {
+ llist_t *next = excludes->link;
+ excludes->link = tar_handle->reject;
+ tar_handle->reject = excludes;
+ excludes = next;
+ }
+# endif
+ tar_handle->accept = append_file_list_to_list(tar_handle->accept);
+#endif
+
+ /* Setup an array of filenames to work with */
+ /* TODO: This is the same as in ar, make a separate function? */
+ while (*argv) {
+ /* kill trailing '/' unless the string is just "/" */
+ char *cp = last_char_is(*argv, '/');
+ if (cp > *argv)
+ *cp = '\0';
+ llist_add_to_end(&tar_handle->accept, *argv);
+ argv++;
+ }
+
+ if (tar_handle->accept || tar_handle->reject)
+ tar_handle->filter = filter_accept_reject_list;
+
+ /* Open the tar file */
+ {
+ int tar_fd = STDIN_FILENO;
+ int flags = O_RDONLY;
+
+ if (opt & OPT_CREATE) {
+ /* Make sure there is at least one file to tar up */
+ if (tar_handle->accept == NULL)
+ bb_error_msg_and_die("empty archive");
+
+ tar_fd = STDOUT_FILENO;
+ /* Mimicking GNU tar 1.15.1: */
+ flags = O_WRONLY | O_CREAT | O_TRUNC;
+ }
+
+ if (LONE_DASH(tar_filename)) {
+ tar_handle->src_fd = tar_fd;
+ tar_handle->seek = seek_by_read;
+ } else {
+ if (ENABLE_FEATURE_TAR_AUTODETECT
+ && flags == O_RDONLY
+ && !(opt & OPT_ANY_COMPRESS)
+ ) {
+ tar_handle->src_fd = open_zipped(tar_filename);
+ if (tar_handle->src_fd < 0)
+ bb_perror_msg_and_die("can't open '%s'", tar_filename);
+ } else {
+ tar_handle->src_fd = xopen(tar_filename, flags);
+ }
+ }
+ }
+
+ if (base_dir)
+ xchdir(base_dir);
+
+ //if (SEAMLESS_COMPRESSION || OPT_COMPRESS)
+ // /* We need to know whether child (gzip/bzip/etc) exits abnormally */
+ // signal(SIGCHLD, check_errors_in_children);
+
+ /* Create an archive */
+ if (opt & OPT_CREATE) {
+#if ENABLE_FEATURE_SEAMLESS_GZ || ENABLE_FEATURE_SEAMLESS_BZ2
+ int zipMode = 0;
+ if (ENABLE_FEATURE_SEAMLESS_GZ && (opt & OPT_GZIP))
+ zipMode = 1;
+ if (ENABLE_FEATURE_SEAMLESS_BZ2 && (opt & OPT_BZIP2))
+ zipMode = 2;
+#endif
+ /* NB: writeTarFile() closes tar_handle->src_fd */
+ return writeTarFile(tar_handle->src_fd, verboseFlag,
+ (opt & OPT_DEREFERENCE ? ACTION_FOLLOWLINKS : 0)
+ | (opt & OPT_NORECURSION ? 0 : ACTION_RECURSE),
+ tar_handle->accept,
+ tar_handle->reject, zipMode);
+ }
+
+ if (opt & OPT_ANY_COMPRESS) {
+ USE_FOR_MMU(IF_DESKTOP(long long) int FAST_FUNC (*xformer)(transformer_aux_data_t *aux, int src_fd, int dst_fd);)
+ USE_FOR_NOMMU(const char *xformer_prog;)
+
+ if (opt & OPT_COMPRESS)
+ USE_FOR_MMU(xformer = unpack_Z_stream;)
+ USE_FOR_NOMMU(xformer_prog = "uncompress";)
+ if (opt & OPT_GZIP)
+ USE_FOR_MMU(xformer = unpack_gz_stream;)
+ USE_FOR_NOMMU(xformer_prog = "gunzip";)
+ if (opt & OPT_BZIP2)
+ USE_FOR_MMU(xformer = unpack_bz2_stream;)
+ USE_FOR_NOMMU(xformer_prog = "bunzip2";)
+ if (opt & OPT_LZMA)
+ USE_FOR_MMU(xformer = unpack_lzma_stream;)
+ USE_FOR_NOMMU(xformer_prog = "unlzma";)
+ if (opt & OPT_XZ)
+ USE_FOR_MMU(xformer = unpack_xz_stream;)
+ USE_FOR_NOMMU(xformer_prog = "unxz";)
+
+ open_transformer_with_sig(tar_handle->src_fd, xformer, xformer_prog);
+ /* Can't lseek over pipes */
+ tar_handle->seek = seek_by_read;
+ /*tar_handle->offset = 0; - already is */
+ }
+
+ while (get_header_tar(tar_handle) == EXIT_SUCCESS)
+ continue;
+
+ /* Check that every file that should have been extracted was */
+ while (tar_handle->accept) {
+ if (!find_list_entry(tar_handle->reject, tar_handle->accept->data)
+ && !find_list_entry(tar_handle->passed, tar_handle->accept->data)
+ ) {
+ bb_error_msg_and_die("%s: not found in archive",
+ tar_handle->accept->data);
+ }
+ tar_handle->accept = tar_handle->accept->link;
+ }
+ if (ENABLE_FEATURE_CLEAN_UP /* && tar_handle->src_fd != STDIN_FILENO */)
+ close(tar_handle->src_fd);
+
+ if (SEAMLESS_COMPRESSION || OPT_COMPRESS) {
+ check_errors_in_children(0);
+ return bb_got_signal;
+ }
+ return EXIT_SUCCESS;
+}