*
* Based in part on the tar implementation from busybox-0.28
* Copyright (C) 1995 Bruce Perens
- * This is free software under the GNU General Public License.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <fcntl.h>
/* Tar file constants */
# define TAR_MAGIC "ustar" /* ustar and a null */
-# define TAR_VERSION " " /* Be compatable with GNU tar format */
+# define TAR_VERSION " " /* Be compatible with GNU tar format */
-static const int TAR_BLOCK_SIZE = 512;
-static const int TAR_MAGIC_LEN = 6;
-static const int TAR_VERSION_LEN = 2;
+#define TAR_BLOCK_SIZE 512
+#define TAR_MAGIC_LEN 6
+#define TAR_VERSION_LEN 2
/* POSIX tar Header Block, from POSIX 1003.1-1990 */
-enum { NAME_SIZE = 100 }; /* because gcc won't let me use 'static const int' */
+#define NAME_SIZE 100
struct TarHeader { /* byte offset */
char name[NAME_SIZE]; /* 0-99 */
char mode[8]; /* 100-107 */
/* Some info to be carried along when creating a new tarball */
struct TarBallInfo {
- char *fileName; /* File name of the tarball */
- int tarFd; /* Open-for-write file descriptor
- for the tarball */
+ char *fileName; /* File name of the tarball */
+ int tarFd; /* Open-for-write file descriptor
+ for the tarball */
struct stat statBuf; /* 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 */
- int verboseFlag; /* Whether to print extra stuff or not */
+ 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 */
/* Write out a tar header for the specified file/directory/whatever */
static inline int writeTarHeader(struct TarBallInfo *tbInfo,
- const char *header_name,
- const char *real_name, struct stat *statbuf)
+ const char *header_name, const char *real_name, struct stat *statbuf)
{
long chksum = 0;
struct TarHeader header;
return 0;
}
+# else
+#define exclude_file(excluded_files, file) 0
# endif
static int writeFileToTarball(const char *fileName, struct stat *statbuf,
{
struct TarBallInfo *tbInfo = (struct TarBallInfo *) userData;
const char *header_name;
+ int inputFileFd = -1;
/*
** Check to see if we are dealing with a hard link.
if (header_name[0] == '\0')
return TRUE;
-# ifdef CONFIG_FEATURE_TAR_FROM
- if (exclude_file(tbInfo->excludeList, header_name)) {
+ if (ENABLE_FEATURE_TAR_FROM &&
+ exclude_file(tbInfo->excludeList, header_name)) {
return SKIP;
}
-# endif /* CONFIG_FEATURE_TAR_FROM */
-
- if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
- return (FALSE);
- }
- /* Now, if the file is a regular file, copy it out to the tarball */
- if ((tbInfo->hlInfo == NULL)
- && (S_ISREG(statbuf->st_mode))) {
- int inputFileFd;
- ssize_t readSize = 0;
+ /* 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 */
if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
bb_perror_msg("%s: Cannot open", fileName);
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 ) {
+ ssize_t readSize = 0;
/* write the file to the archive */
readSize = bb_copyfd_eof(inputFileFd, tbInfo->tarFd);
+ close(inputFileFd);
/* Pad the file up to the tar block size */
- for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
+ for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++)
write(tbInfo->tarFd, "\0", 1);
- }
- close(inputFileFd);
}
return (TRUE);
char *zip_exec = (gzip == 1) ? "gzip" : "bzip2";
- if (pipe(gzipDataPipe) < 0 || pipe(gzipStatusPipe) < 0) {
- bb_perror_msg_and_die("Failed to create pipe");
- }
+ if (pipe(gzipDataPipe) < 0 || pipe(gzipStatusPipe) < 0)
+ bb_perror_msg_and_die("create pipe");
signal(SIGPIPE, SIG_IGN); /* we only want EPIPE on errors */
/* Avoid vfork clobbering */
(void) &include;
(void) &errorFlag;
+ (void) &zip_exec;
# endif
gzipPid = vfork();
dup2(tbInfo.tarFd, 1);
close(gzipStatusPipe[0]);
- fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows sucess */
+ fcntl(gzipStatusPipe[1], F_SETFD, FD_CLOEXEC); /* close on exec shows success */
- execlp(zip_exec, zip_exec, "-f", 0);
+ execlp(zip_exec, zip_exec, "-f", NULL);
vfork_exec_errno = errno;
close(gzipStatusPipe[1]);
if (n == 0 && vfork_exec_errno != 0) {
errno = vfork_exec_errno;
- bb_perror_msg_and_die("Could not exec %s",zip_exec);
+ bb_perror_msg_and_die("Could not exec %s", zip_exec);
} else if ((n < 0) && (errno == EAGAIN || errno == EINTR))
continue; /* try it again */
break;
close(gzipStatusPipe[0]);
tbInfo.tarFd = gzipDataPipe[1];
- } else {
- bb_perror_msg_and_die("Failed to vfork gzip process");
- }
+ } else bb_perror_msg_and_die("vfork gzip");
}
tbInfo.excludeList = exclude;
/* Read the directory/files and iterate over them one at a time */
while (include) {
- if (!recursive_action(include->data, TRUE, dereferenceFlag, FALSE,
- writeFileToTarball, writeFileToTarball,
- (void *) &tbInfo)) {
+ if (!recursive_action(include->data, TRUE, dereferenceFlag,
+ FALSE, writeFileToTarball, writeFileToTarball, &tbInfo))
+ {
errorFlag = TRUE;
}
include = include->link;
}
/* Write two empty blocks to the end of the archive */
- for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++) {
+ for (size = 0; size < (2 * TAR_BLOCK_SIZE); size++)
write(tbInfo.tarFd, "\0", 1);
- }
/* 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 */
- /* Hang up the tools, close up shop, head home */
+ /* 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");
- freeHardLinkInfo(&tbInfo.hlInfoHead);
-
- if (gzipPid) {
- if (waitpid(gzipPid, NULL, 0) == -1)
- printf("Couldnt wait ?");
- }
+ if (gzipPid && waitpid(gzipPid, NULL, 0)==-1)
+ bb_error_msg("Couldnt wait");
return !errorFlag;
}
-#endif /* tar_create */
+#else
+int writeTarFile(const int tar_fd, const int verboseFlag,
+ const unsigned long dereferenceFlag, const llist_t *include,
+ const llist_t *exclude, const int gzip);
+#endif /* tar_create */
#ifdef CONFIG_FEATURE_TAR_FROM
static llist_t *append_file_list_to_list(llist_t *list)
char *line;
llist_t *newlist = NULL;
- while(cur) {
+ while (cur) {
src_stream = bb_xfopen(cur->data, "r");
tmp = cur;
cur = cur->link;
free(tmp);
- while((line = bb_get_chomped_line_from_file(src_stream)) != NULL) {
- newlist = llist_add_to(newlist, line);
- }
- fclose(src_stream);
+ while ((line = bb_get_chomped_line_from_file(src_stream)) != NULL)
+ newlist = llist_add_to(newlist, line);
+ fclose(src_stream);
}
return newlist;
}
+#else
+#define append_file_list_to_list(x) 0
#endif
#ifdef CONFIG_FEATURE_TAR_COMPRESS
archive_handle->seek = seek_by_char;
/* do the decompression, and cleanup */
- if ((bb_xread_char(archive_handle->src_fd) != 0x1f) || (bb_xread_char(archive_handle->src_fd) != 0x9d)) {
+ if (bb_xread_char(archive_handle->src_fd) != 0x1f ||
+ bb_xread_char(archive_handle->src_fd) != 0x9d)
+ {
bb_error_msg_and_die("Invalid magic");
}
/* Can only do one file at a time */
return(EXIT_FAILURE);
}
+#else
+#define get_header_tar_Z 0
#endif
-#define CTX_TEST (1 << 0)
-#define CTX_EXTRACT (1 << 1)
-#define TAR_OPT_BASEDIR (1 << 2)
-#define TAR_OPT_TARNAME (1 << 3)
-#define TAR_OPT_2STDOUT (1 << 4)
-#define TAR_OPT_P (1 << 5)
-#define TAR_OPT_VERBOSE (1 << 6)
-#define TAR_OPT_KEEP_OLD (1 << 7)
+#define CTX_TEST (1 << 0)
+#define CTX_EXTRACT (1 << 1)
+#define TAR_OPT_BASEDIR (1 << 2)
+#define TAR_OPT_TARNAME (1 << 3)
+#define TAR_OPT_2STDOUT (1 << 4)
+#define TAR_OPT_P (1 << 5)
+#define TAR_OPT_VERBOSE (1 << 6)
+#define TAR_OPT_KEEP_OLD (1 << 7)
+
+#define TAR_OPT_AFTER_START 8
+#define CTX_CREATE (1 << (TAR_OPT_AFTER_START))
+#define TAR_OPT_DEREFERNCE (1 << (TAR_OPT_AFTER_START + 1))
#ifdef CONFIG_FEATURE_TAR_CREATE
-# define CTX_CREATE (1 << 8)
-# define TAR_OPT_DEREFERNCE (1 << 9)
-# define TAR_OPT_STR_CREATE "ch"
-# define TAR_OPT_FLAG_CREATE 2
+# define TAR_OPT_STR_CREATE "ch"
+# define TAR_OPT_AFTER_CREATE TAR_OPT_AFTER_START + 2
#else
-//# define CTX_CREATE 0
-# define TAR_OPT_STR_CREATE ""
-# define TAR_OPT_FLAG_CREATE 0
+# define TAR_OPT_STR_CREATE ""
+# define TAR_OPT_AFTER_CREATE TAR_OPT_AFTER_START
#endif
+#define TAR_OPT_BZIP2 (1 << (TAR_OPT_AFTER_CREATE))
#ifdef CONFIG_FEATURE_TAR_BZIP2
-# define TAR_OPT_BZIP2 (1 << (8 + TAR_OPT_FLAG_CREATE))
-# define TAR_OPT_STR_BZIP2 "j"
-# define TAR_OPT_FLAG_BZIP2 1
+# define TAR_OPT_STR_BZIP2 "j"
+# define TAR_OPT_AFTER_BZIP2 TAR_OPT_AFTER_CREATE + 1
#else
-# define TAR_OPT_STR_BZIP2 ""
-# define TAR_OPT_FLAG_BZIP2 0
+# define TAR_OPT_STR_BZIP2 ""
+# define TAR_OPT_AFTER_BZIP2 TAR_OPT_AFTER_CREATE
#endif
+#define TAR_OPT_LZMA (1 << (TAR_OPT_AFTER_BZIP2))
+#ifdef CONFIG_FEATURE_TAR_LZMA
+# define TAR_OPT_STR_LZMA "a"
+# define TAR_OPT_AFTER_LZMA TAR_OPT_AFTER_BZIP2 + 1
+#else
+# define TAR_OPT_STR_LZMA ""
+# define TAR_OPT_AFTER_LZMA TAR_OPT_AFTER_BZIP2
+#endif
+
+#define TAR_OPT_INCLUDE_FROM (1 << (TAR_OPT_AFTER_LZMA))
+#define TAR_OPT_EXCLUDE_FROM (1 << (TAR_OPT_AFTER_LZMA + 1))
#ifdef CONFIG_FEATURE_TAR_FROM
-# define TAR_OPT_INCLUDE_FROM (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2))
-# define TAR_OPT_EXCLUDE_FROM (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + 1))
-# define TAR_OPT_STR_FROM "T:X:"
-# define TAR_OPT_FLAG_FROM 2
+# define TAR_OPT_STR_FROM "T:X:"
+# define TAR_OPT_AFTER_FROM TAR_OPT_AFTER_LZMA + 2
#else
-# define TAR_OPT_STR_FROM ""
-# define TAR_OPT_FLAG_FROM 0
+# define TAR_OPT_STR_FROM ""
+# define TAR_OPT_AFTER_FROM TAR_OPT_AFTER_LZMA
#endif
+#define TAR_OPT_GZIP (1 << (TAR_OPT_AFTER_FROM))
#ifdef CONFIG_FEATURE_TAR_GZIP
-# define TAR_OPT_GZIP (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + TAR_OPT_FLAG_FROM))
-# define TAR_OPT_STR_GZIP "z"
-# define TAR_OPT_FLAG_GZIP 1
+# define TAR_OPT_STR_GZIP "z"
+# define TAR_OPT_AFTER_GZIP TAR_OPT_AFTER_FROM + 1
#else
-# define TAR_OPT_STR_GZIP ""
-# define TAR_OPT_FLAG_GZIP 0
+# define TAR_OPT_STR_GZIP ""
+# define TAR_OPT_AFTER_GZIP TAR_OPT_AFTER_FROM
#endif
+#define TAR_OPT_UNCOMPRESS (1 << (TAR_OPT_AFTER_GZIP))
#ifdef CONFIG_FEATURE_TAR_COMPRESS
-# define TAR_OPT_UNCOMPRESS (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + TAR_OPT_FLAG_FROM + TAR_OPT_FLAG_GZIP))
-# define TAR_OPT_STR_COMPRESS "Z"
+# define TAR_OPT_STR_COMPRESS "Z"
+# define TAR_OPT_AFTER_COMPRESS TAR_OPT_AFTER_GZIP + 1
#else
-# define TAR_OPT_STR_COMPRESS ""
+# define TAR_OPT_STR_COMPRESS ""
+# define TAR_OPT_AFTER_COMPRESS TAR_OPT_AFTER_GZIP
#endif
+#define TAR_OPT_NOPRESERVE_OWN (1 << (TAR_OPT_AFTER_COMPRESS))
+#define TAR_OPT_NOPRESERVE_PERM (1 << (TAR_OPT_AFTER_COMPRESS + 1))
+#define TAR_OPT_STR_NOPRESERVE "\203\213"
+#define TAR_OPT_AFTER_NOPRESERVE TAR_OPT_AFTER_COMPRESS + 2
+
static const char tar_options[]="txC:f:Opvk" \
TAR_OPT_STR_CREATE \
TAR_OPT_STR_BZIP2 \
+ TAR_OPT_STR_LZMA \
TAR_OPT_STR_FROM \
TAR_OPT_STR_GZIP \
- TAR_OPT_STR_COMPRESS;
+ TAR_OPT_STR_COMPRESS \
+ TAR_OPT_STR_NOPRESERVE;
#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
static const struct option tar_long_options[] = {
- { "list", 0, NULL, 't' },
- { "extract", 0, NULL, 'x' },
- { "directory", 1, NULL, 'C' },
- { "file", 1, NULL, 'f' },
- { "to-stdout", 0, NULL, 'O' },
+ { "list", 0, NULL, 't' },
+ { "extract", 0, NULL, 'x' },
+ { "directory", 1, NULL, 'C' },
+ { "file", 1, NULL, 'f' },
+ { "to-stdout", 0, NULL, 'O' },
{ "same-permissions", 0, NULL, 'p' },
- { "verbose", 0, NULL, 'v' },
- { "keep-old", 0, NULL, 'k' },
+ { "verbose", 0, NULL, 'v' },
+ { "keep-old", 0, NULL, 'k' },
+ { "no-same-owner", 0, NULL, '\203' },
+ { "no-same-permissions",0, NULL, '\213' },
# ifdef CONFIG_FEATURE_TAR_CREATE
- { "create", 0, NULL, 'c' },
- { "dereference", 0, NULL, 'h' },
+ { "create", 0, NULL, 'c' },
+ { "dereference", 0, NULL, 'h' },
# endif
# ifdef CONFIG_FEATURE_TAR_BZIP2
- { "bzip2", 0, NULL, 'j' },
+ { "bzip2", 0, NULL, 'j' },
+# endif
+# ifdef CONFIG_FEATURE_TAR_LZMA
+ { "lzma", 0, NULL, 'a' },
# endif
# ifdef CONFIG_FEATURE_TAR_FROM
- { "files-from", 1, NULL, 'T' },
- { "exclude-from", 1, NULL, 'X' },
+ { "files-from", 1, NULL, 'T' },
+ { "exclude-from", 1, NULL, 'X' },
+ { "exclude", 1, NULL, '\n' },
# endif
# ifdef CONFIG_FEATURE_TAR_GZIP
- { "gzip", 0, NULL, 'z' },
+ { "gzip", 0, NULL, 'z' },
# endif
# ifdef CONFIG_FEATURE_TAR_COMPRESS
- { "compress", 0, NULL, 'Z' },
+ { "compress", 0, NULL, 'Z' },
# endif
- { 0, 0, 0, 0 }
+ { 0, 0, 0, 0 }
};
+#else
+#define tar_long_options 0
#endif
int tar_main(int argc, char **argv)
char *base_dir = NULL;
const char *tar_filename = "-";
unsigned long opt;
- unsigned long ctx_flag = 0;
-
- if (argc < 2) {
- bb_show_usage();
- }
-
- /* Prepend '-' to the first argument if required */
- if (argv[1][0] != '-')
- argv[1] = bb_xasprintf("-%s", argv[1]);
+ llist_t *excludes = NULL;
/* Initialise default values */
tar_handle = init_handle();
tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE | ARCHIVE_EXTRACT_UNCONDITIONAL;
- bb_opt_complementally = "?c~tx:t~cx:x~ct:X*:T*";
-#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
- bb_applet_long_options = tar_long_options;
-#endif
-
+ /* Prepend '-' to the first argument if required */
+ bb_opt_complementally = ENABLE_FEATURE_TAR_CREATE ?
+ "--:X::T::\n::c:t:x:?:c--tx:t--cx:x--ct" :
+ "--:X::T::\n::t:x:?:t--x:x--t";
+ if (ENABLE_FEATURE_TAR_LONG_OPTIONS)
+ bb_applet_long_options = tar_long_options;
opt = bb_getopt_ulflags(argc, argv, tar_options,
&base_dir, /* Change to dir <optarg> */
&tar_filename /* archive filename */
#ifdef CONFIG_FEATURE_TAR_FROM
, &(tar_handle->accept),
- &(tar_handle->reject)
+ &(tar_handle->reject),
+ &excludes
#endif
);
-#ifdef CONFIG_FEATURE_TAR_CREATE
- ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT);
-#else
- ctx_flag = opt & (CTX_TEST | CTX_EXTRACT);
-#endif
- if (ctx_flag == 0) {
- bb_show_usage();
- }
- if(ctx_flag & CTX_TEST) {
+ if (opt & CTX_TEST) {
if ((tar_handle->action_header == header_list) ||
- (tar_handle->action_header == header_verbose_list)) {
- tar_handle->action_header = header_verbose_list;
- } else {
- tar_handle->action_header = header_list;
- }
+ (tar_handle->action_header == header_verbose_list))
+ {
+ tar_handle->action_header = header_verbose_list;
+ } else tar_handle->action_header = header_list;
}
- if(ctx_flag & CTX_EXTRACT) {
- if (tar_handle->action_data != data_extract_to_stdout)
- tar_handle->action_data = data_extract_all;
- }
- if(opt & TAR_OPT_2STDOUT) {
- /* To stdout */
+ if((opt & CTX_EXTRACT) && tar_handle->action_data != data_extract_to_stdout)
+ tar_handle->action_data = data_extract_all;
+
+ if (opt & TAR_OPT_2STDOUT)
tar_handle->action_data = data_extract_to_stdout;
- }
- if(opt & TAR_OPT_VERBOSE) {
+
+ if (opt & TAR_OPT_VERBOSE) {
if ((tar_handle->action_header == header_list) ||
(tar_handle->action_header == header_verbose_list))
{
- tar_handle->action_header = header_verbose_list;
- } else {
+ tar_handle->action_header = header_verbose_list;
+ } else
tar_handle->action_header = header_list;
- }
}
- if (opt & TAR_OPT_KEEP_OLD) {
+ if (opt & TAR_OPT_KEEP_OLD)
tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL;
- }
-#ifdef CONFIG_FEATURE_TAR_GZIP
- if(opt & TAR_OPT_GZIP) {
+ if (opt & TAR_OPT_NOPRESERVE_OWN)
+ tar_handle->flags |= ARCHIVE_NOPRESERVE_OWN;
+
+ if (opt & TAR_OPT_NOPRESERVE_PERM)
+ tar_handle->flags |= ARCHIVE_NOPRESERVE_PERM;
+
+ if (ENABLE_FEATURE_TAR_GZIP && (opt & TAR_OPT_GZIP))
get_header_ptr = get_header_tar_gz;
- }
-#endif
-#ifdef CONFIG_FEATURE_TAR_BZIP2
- if(opt & TAR_OPT_BZIP2) {
+
+ if (ENABLE_FEATURE_TAR_BZIP2 && (opt & TAR_OPT_BZIP2))
get_header_ptr = get_header_tar_bz2;
- }
-#endif
-#ifdef CONFIG_FEATURE_TAR_COMPRESS
- if(opt & TAR_OPT_UNCOMPRESS) {
+
+ if (ENABLE_FEATURE_TAR_LZMA && (opt & TAR_OPT_LZMA))
+ get_header_ptr = get_header_tar_lzma;
+
+ if (ENABLE_FEATURE_TAR_COMPRESS && (opt & TAR_OPT_UNCOMPRESS))
get_header_ptr = get_header_tar_Z;
- }
-#endif
-#ifdef CONFIG_FEATURE_TAR_FROM
- if(opt & TAR_OPT_EXCLUDE_FROM) {
+
+ if (ENABLE_FEATURE_TAR_FROM) {
tar_handle->reject = append_file_list_to_list(tar_handle->reject);
- }
- if(opt & TAR_OPT_INCLUDE_FROM) {
+ /* Append excludes to reject */
+ while (excludes) {
+ llist_t *temp = excludes->link;
+ excludes->link = tar_handle->reject;
+ tar_handle->reject = excludes;
+ excludes = temp;
+ }
tar_handle->accept = append_file_list_to_list(tar_handle->accept);
}
-#endif
/* Check if we are reading from stdin */
- if ((argv[optind]) && (*argv[optind] == '-')) {
+ if (argv[optind] && *argv[optind] == '-') {
/* Default is to read from stdin, so just skip to next arg */
optind++;
}
/* TODO: This is the same as in ar, separate function ? */
while (optind < argc) {
char *filename_ptr = last_char_is(argv[optind], '/');
- if (filename_ptr > argv[optind]) {
+ if (filename_ptr > argv[optind])
*filename_ptr = '\0';
- }
+
tar_handle->accept = llist_add_to(tar_handle->accept, argv[optind]);
optind++;
}
- if ((tar_handle->accept) || (tar_handle->reject)) {
+ if ((tar_handle->accept) || (tar_handle->reject))
tar_handle->filter = filter_accept_reject_list;
- }
/* Open the tar file */
{
FILE *tar_stream;
int flags;
-#ifdef CONFIG_FEATURE_TAR_CREATE
- if (opt & CTX_CREATE) {
+ if (ENABLE_FEATURE_TAR_CREATE && (opt & CTX_CREATE)) {
/* Make sure there is at least one file to tar up. */
- if (tar_handle->accept == NULL) {
- bb_error_msg_and_die("Cowardly refusing to create an empty archive");
- }
+ if (tar_handle->accept == NULL)
+ bb_error_msg_and_die("empty archive");
+
tar_stream = stdout;
flags = O_WRONLY | O_CREAT | O_EXCL;
unlink(tar_filename);
- } else
-#endif
- {
+ } else {
tar_stream = stdin;
flags = O_RDONLY;
}
}
}
- if ((base_dir) && (chdir(base_dir))) {
- bb_perror_msg_and_die("Couldnt chdir to %s", base_dir);
- }
+ if (base_dir)
+ bb_xchdir(base_dir);
-#ifdef CONFIG_FEATURE_TAR_CREATE
/* create an archive */
- if (opt & CTX_CREATE) {
+ if (ENABLE_FEATURE_TAR_CREATE && (opt & CTX_CREATE)) {
int verboseFlag = FALSE;
int zipMode = 0;
-# ifdef CONFIG_FEATURE_TAR_GZIP
- if (get_header_ptr == get_header_tar_gz) {
+ if (ENABLE_FEATURE_TAR_GZIP && get_header_ptr == get_header_tar_gz)
zipMode = 1;
- }
-# endif /* CONFIG_FEATURE_TAR_GZIP */
-# ifdef CONFIG_FEATURE_TAR_BZIP2
- if (get_header_ptr == get_header_tar_bz2) {
+ if (ENABLE_FEATURE_TAR_BZIP2 && get_header_ptr == get_header_tar_bz2)
zipMode = 2;
- }
-# endif /* CONFIG_FEATURE_TAR_BZIP2 */
if ((tar_handle->action_header == header_list) ||
- (tar_handle->action_header == header_verbose_list)) {
+ (tar_handle->action_header == header_verbose_list))
+ {
verboseFlag = TRUE;
}
writeTarFile(tar_handle->src_fd, verboseFlag, opt & TAR_OPT_DEREFERNCE, tar_handle->accept,
tar_handle->reject, zipMode);
- } else
-#endif /* CONFIG_FEATURE_TAR_CREATE */
- {
+ } else {
while (get_header_ptr(tar_handle) == EXIT_SUCCESS);
- /* Ckeck that every file that should have been extracted was */
+ /* 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) == NULL) {
- if (find_list_entry(tar_handle->passed, tar_handle->accept->data) == NULL) {
- bb_error_msg_and_die("%s: Not found in archive\n", tar_handle->accept->data);
- }
+ 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;
}
}
-#ifdef CONFIG_FEATURE_CLEAN_UP
- if (tar_handle->src_fd != STDIN_FILENO) {
+ if (ENABLE_FEATURE_CLEAN_UP && tar_handle->src_fd != STDIN_FILENO)
close(tar_handle->src_fd);
- }
-#endif /* CONFIG_FEATURE_CLEAN_UP */
return(EXIT_SUCCESS);
}
projects / oweals / busybox.git / blobdiff