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authorGlenn L McGrath2002-11-03 14:05:15 +0000
committerGlenn L McGrath2002-11-03 14:05:15 +0000
commit237ae42fc96ede945d28d9054f045b73e419d089 (patch)
tree3fb6a9c10150303aca3c218b47aaf327a186382a
parent2fc54a9258c3aa5dad2ce9807ba85cf29af2668e (diff)
downloadbusybox-237ae42fc96ede945d28d9054f045b73e419d089.zip
busybox-237ae42fc96ede945d28d9054f045b73e419d089.tar.gz
Abstract read and seek in unarchiving code, convert bunzip to file descriptors, support tar -j
-rw-r--r--archival/ar.c20
-rw-r--r--archival/bunzip2.c31
-rw-r--r--archival/config.in1
-rw-r--r--archival/cpio.c12
-rw-r--r--archival/libunarchive/Makefile.in12
-rw-r--r--archival/libunarchive/archive_copy_file.c48
-rw-r--r--archival/libunarchive/archive_xread.c33
-rw-r--r--archival/libunarchive/archive_xread_all.c (renamed from archival/libunarchive/seek_sub_file.c)18
-rw-r--r--archival/libunarchive/archive_xread_all_eof.c32
-rw-r--r--archival/libunarchive/archive_xread_char.c30
-rw-r--r--archival/libunarchive/copy_file_chunk_fd.c33
-rw-r--r--archival/libunarchive/data_align.c33
-rw-r--r--archival/libunarchive/data_extract_all.c22
-rw-r--r--archival/libunarchive/data_extract_to_buffer.c23
-rw-r--r--archival/libunarchive/data_extract_to_stdout.c20
-rw-r--r--archival/libunarchive/data_skip.c2
-rw-r--r--archival/libunarchive/decompress_bunzip2.c247
-rw-r--r--archival/libunarchive/get_header_tar.c9
-rw-r--r--archival/libunarchive/get_header_tar_gz.c5
-rw-r--r--archival/libunarchive/init_handle.c19
-rw-r--r--archival/libunarchive/seek_by_char.c25
-rw-r--r--archival/libunarchive/seek_by_jump.c35
-rw-r--r--archival/libunarchive/unpack_ar_archive.c2
-rw-r--r--archival/tar.c21
-rw-r--r--archival/unzip.c15
-rw-r--r--include/libbb.h1
-rw-r--r--include/unarchive.h32
-rw-r--r--libbb/xfuncs.c13
28 files changed, 464 insertions, 330 deletions
diff --git a/archival/ar.c b/archival/ar.c
index 9979273..71cde4e 100644
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -50,7 +50,7 @@ static void header_verbose_list_ar(const file_header_t *file_header)
printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, (int) file_header->size, &mtime[4], file_header->name);
}
-#if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO
+#if !defined CONFIG_TAR && !defined CONFIG_DPKG_DEB && !defined CONFIG_CPIO
/* This is simpler than data_extract_all */
static void data_extract_regular_file(archive_handle_t *archive_handle)
{
@@ -59,7 +59,7 @@ static void data_extract_regular_file(archive_handle_t *archive_handle)
file_header = archive_handle->file_header;
dst_fd = xopen(file_header->name, O_WRONLY | O_CREAT);
- copy_file_chunk_fd(archive_handle->src_fd, dst_fd, file_header->size);
+ archive_copy_file(archive_handle, dst_fd);
close(dst_fd);
chmod(file_header->name, file_header->mode);
@@ -80,18 +80,10 @@ extern int ar_main(int argc, char **argv)
archive_handle_t *archive_handle;
int opt;
-#ifndef CONFIG_DPKG_DEB
+#if !defined CONFIG_DPKG_DEB && !defined CONFIG_DPKG
char magic[8];
#endif
-#if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO
archive_handle = init_handle();
-#else
- archive_handle = xcalloc(1, sizeof(archive_handle_t));
- archive_handle->filter = filter_accept_all;
- archive_handle->action_data = data_skip;
- archive_handle->action_header = header_skip;
- archive_handle->file_header =xmalloc(sizeof(file_header_t));
-#endif
while ((opt = getopt(argc, argv, "covtpxX")) != -1) {
switch (opt) {
@@ -104,7 +96,7 @@ extern int ar_main(int argc, char **argv)
case 'X':
archive_handle->action_header = header_verbose_list_ar;
case 'x': /* extract */
-#if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO
+#if defined CONFIG_TAR || defined CONFIG_DPKG_DEB || defined CONFIG_CPIO
archive_handle->action_data = data_extract_all;
#else
archive_handle->action_data = data_extract_regular_file;
@@ -136,10 +128,10 @@ extern int ar_main(int argc, char **argv)
optind++;
}
-#if defined CONFIG_DPKG_DEB
+#if defined CONFIG_DPKG_DEB || defined CONFIG_DPKG
unpack_ar_archive(archive_handle);
#else
- xread_all(archive_handle->src_fd, magic, 7);
+ archive_xread_all(archive_handle, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
error_msg_and_die("Invalid ar magic");
}
diff --git a/archival/bunzip2.c b/archival/bunzip2.c
index 9f346f2..d5c06f4 100644
--- a/archival/bunzip2.c
+++ b/archival/bunzip2.c
@@ -17,9 +17,11 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <fcntl.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
#include "busybox.h"
@@ -33,8 +35,8 @@ int bunzip2_main(int argc, char **argv)
int opt = 0;
int status;
- FILE *src_stream;
- FILE *dst_stream;
+ int src_fd;
+ int dst_fd;
char *save_name = NULL;
char *delete_name = NULL;
@@ -59,10 +61,10 @@ int bunzip2_main(int argc, char **argv)
/* Set input filename and number */
if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
flags |= bunzip_to_stdout;
- src_stream = stdin;
+ src_fd = fileno(stdin);
} else {
/* Open input file */
- src_stream = xfopen(argv[optind], "r");
+ src_fd = xopen(argv[optind], O_RDONLY);
save_name = xstrdup(argv[optind]);
if (strcmp(save_name + strlen(save_name) - 4, ".bz2") != 0)
@@ -71,29 +73,30 @@ int bunzip2_main(int argc, char **argv)
}
/* Check that the input is sane. */
- if (isatty(fileno(src_stream)) && (flags & bunzip_force) == 0)
+ if (isatty(src_fd) && (flags & bunzip_force) == 0) {
error_msg_and_die("compressed data not read from terminal. Use -f to force it.");
+ }
if (flags & bunzip_to_stdout) {
- dst_stream = stdout;
+ dst_fd = fileno(stdout);
} else {
- dst_stream = xfopen(save_name, "w");
+ dst_fd = xopen(save_name, O_WRONLY | O_CREAT);
}
- if (uncompressStream(src_stream, dst_stream)) {
- if (!(flags & bunzip_to_stdout))
+ if (uncompressStream(src_fd, dst_fd)) {
+ if (!(flags & bunzip_to_stdout)) {
delete_name = argv[optind];
+ }
status = EXIT_SUCCESS;
} else {
- if (!(flags & bunzip_to_stdout))
+ if (!(flags & bunzip_to_stdout)) {
delete_name = save_name;
+ }
status = EXIT_FAILURE;
}
- if (delete_name) {
- if (unlink(delete_name) < 0) {
- error_msg_and_die("Couldn't remove %s", delete_name);
- }
+ if ((delete_name) && (unlink(delete_name) < 0)) {
+ error_msg_and_die("Couldn't remove %s", delete_name);
}
return status;
diff --git a/archival/config.in b/archival/config.in
index 689561b..3ec03fd 100644
--- a/archival/config.in
+++ b/archival/config.in
@@ -26,6 +26,7 @@ bool 'rpm2cpio' CONFIG_RPM2CPIO
bool 'tar' CONFIG_TAR
if [ "$CONFIG_TAR" = "y" ] ; then
bool ' Enable archive creation' CONFIG_FEATURE_TAR_CREATE
+ bool ' Enable -j option to handle .tar.bz2 files' CONFIG_FEATURE_TAR_BZIP2
bool ' Enable -X and --exclude options (exclude files)' CONFIG_FEATURE_TAR_EXCLUDE
bool ' Enable -z option' CONFIG_FEATURE_TAR_GZIP
bool ' Enable support for old tar header format' CONFIG_FEATURE_TAR_OLD_FORMAT
diff --git a/archival/cpio.c b/archival/cpio.c
index 7615175..0d06149 100644
--- a/archival/cpio.c
+++ b/archival/cpio.c
@@ -45,6 +45,7 @@ extern int cpio_main(int argc, char **argv)
/* Initialise */
archive_handle = init_handle();
archive_handle->src_fd = fileno(stdin);
+ archive_handle->seek = seek_by_char;
archive_handle->action_header = header_list;
while ((opt = getopt(argc, argv, "idmuvtF:")) != -1) {
@@ -69,6 +70,7 @@ extern int cpio_main(int argc, char **argv)
break;
case 'F':
archive_handle->src_fd = xopen(optarg, O_RDONLY);
+ archive_handle->seek = seek_by_jump;
break;
default:
show_usage();
@@ -117,9 +119,9 @@ extern int cpio_main(int argc, char **argv)
}
/* There can be padding before archive header */
- archive_handle->offset += data_align(archive_handle->src_fd, archive_handle->offset, 4);
+ data_align(archive_handle, 4);
- if (xread_all_eof(archive_handle->src_fd, cpio_header, 110) == 0) {
+ if (archive_xread_all_eof(archive_handle, cpio_header, 110) == 0) {
return(EXIT_FAILURE);
}
archive_handle->offset += 110;
@@ -145,12 +147,12 @@ extern int cpio_main(int argc, char **argv)
dummy, &major, &minor, &namesize, dummy);
file_header->name = (char *) xmalloc(namesize + 1);
- xread(archive_handle->src_fd, file_header->name, namesize); /* Read in filename */
+ archive_xread_all(archive_handle, file_header->name, namesize); /* Read in filename */
file_header->name[namesize] = '\0';
archive_handle->offset += namesize;
/* Update offset amount and skip padding before file contents */
- archive_handle->offset += data_align(archive_handle->src_fd, archive_handle->offset, 4);
+ data_align(archive_handle, 4);
if (strcmp(file_header->name, "TRAILER!!!") == 0) {
printf("%d blocks\n", (int) (archive_handle->offset % 512 ? (archive_handle->offset / 512) + 1 : archive_handle->offset / 512)); /* Always round up */
@@ -173,7 +175,7 @@ extern int cpio_main(int argc, char **argv)
if (S_ISLNK(file_header->mode)) {
file_header->link_name = (char *) xmalloc(file_header->size + 1);
- xread(archive_handle->src_fd, file_header->link_name, file_header->size);
+ archive_xread_all(archive_handle, file_header->link_name, file_header->size);
file_header->link_name[file_header->size] = '\0';
archive_handle->offset += file_header->size;
file_header->size = 0; /* Stop possible seeks in future */
diff --git a/archival/libunarchive/Makefile.in b/archival/libunarchive/Makefile.in
index 4320777..e406f75 100644
--- a/archival/libunarchive/Makefile.in
+++ b/archival/libunarchive/Makefile.in
@@ -41,15 +41,23 @@ LIBUNARCHIVE-y:= \
header_list.o \
header_verbose_list.o \
\
+ archive_xread.o \
+ archive_xread_all.o \
+ archive_xread_all_eof.o \
+ archive_xread_char.o \
+\
+ seek_by_char.o \
+ seek_by_jump.o \
+\
+ archive_copy_file.o \
+\
add_to_list.o \
check_header_gzip.o \
check_trailer_gzip.o \
- copy_file_chunk_fd.o \
data_align.o \
decompress_bunzip2.o \
find_list_entry.o \
init_handle.o \
- seek_sub_file.o \
uncompress.o \
unpack_ar_archive.o \
unzip.o
diff --git a/archival/libunarchive/archive_copy_file.c b/archival/libunarchive/archive_copy_file.c
new file mode 100644
index 0000000..22355cc
--- /dev/null
+++ b/archival/libunarchive/archive_copy_file.c
@@ -0,0 +1,48 @@
+/*
+ * 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.
+ */
+
+#include <unistd.h>
+
+#include "libbb.h"
+#include "unarchive.h"
+
+/* Copy CHUNKSIZE bytes (or untill EOF if chunksize == -1)
+ * from SRC_FILE to DST_FILE. */
+extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd)
+{
+ size_t size;
+ char buffer[BUFSIZ];
+ off_t chunksize = archive_handle->file_header->size;
+
+ while (chunksize != 0) {
+ if (chunksize > BUFSIZ) {
+ size = BUFSIZ;
+ } else {
+ size = chunksize;
+ }
+ archive_xread_all(archive_handle, buffer, size);
+
+ if (write(dst_fd, buffer, size) != size) {
+ error_msg_and_die ("Short write");
+ }
+
+ if (chunksize != -1) {
+ chunksize -= size;
+ }
+ }
+
+ return;
+}
diff --git a/archival/libunarchive/archive_xread.c b/archival/libunarchive/archive_xread.c
new file mode 100644
index 0000000..7fde4c0
--- /dev/null
+++ b/archival/libunarchive/archive_xread.c
@@ -0,0 +1,33 @@
+/*
+ * 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 Library 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "unarchive.h"
+#include "libbb.h"
+
+extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count)
+{
+ ssize_t size;
+
+ size = archive_handle->read(archive_handle->src_fd, buf, count);
+ if (size == -1) {
+ perror_msg_and_die("Read error");
+ }
+
+ return(size);
+}
diff --git a/archival/libunarchive/seek_sub_file.c b/archival/libunarchive/archive_xread_all.c
index 733bb36..ef8cc01 100644
--- a/archival/libunarchive/seek_sub_file.c
+++ b/archival/libunarchive/archive_xread_all.c
@@ -14,19 +14,19 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-#include <sys/types.h>
-#include <errno.h>
-#include <unistd.h>
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include "unarchive.h"
#include "libbb.h"
-extern void seek_sub_file(const int src_fd, const unsigned int amount)
+extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count)
{
- if ((lseek(src_fd, amount, SEEK_CUR) == -1) && (errno == ESPIPE)) {
- unsigned int i;
- for (i = 0; i < amount; i++) {
- xread_char(src_fd);
- }
+ ssize_t size;
+
+ size = archive_xread(archive_handle, buf, count);
+ if (size != count) {
+ error_msg_and_die("Short read");
}
+ return;
}
diff --git a/archival/libunarchive/archive_xread_all_eof.c b/archival/libunarchive/archive_xread_all_eof.c
new file mode 100644
index 0000000..3cfbbd8
--- /dev/null
+++ b/archival/libunarchive/archive_xread_all_eof.c
@@ -0,0 +1,32 @@
+/*
+ * 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 Library 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "unarchive.h"
+#include "libbb.h"
+
+extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count)
+{
+ ssize_t size;
+
+ size = archive_xread(archive_handle, buf, count);
+ if ((size != 0) && (size != count)) {
+ perror_msg_and_die("Short read, read %d of %d", size, count);
+ }
+ return(size);
+}
diff --git a/archival/libunarchive/archive_xread_char.c b/archival/libunarchive/archive_xread_char.c
new file mode 100644
index 0000000..4c665e1
--- /dev/null
+++ b/archival/libunarchive/archive_xread_char.c
@@ -0,0 +1,30 @@
+/*
+ * 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 Library 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "unarchive.h"
+#include "libbb.h"
+
+extern unsigned char archive_xread_char(const archive_handle_t *archive_handle)
+{
+ unsigned char tmp;
+
+ archive_xread(archive_handle, &tmp, 1);
+
+ return(tmp);
+}
diff --git a/archival/libunarchive/copy_file_chunk_fd.c b/archival/libunarchive/copy_file_chunk_fd.c
deleted file mode 100644
index fb513e6..0000000
--- a/archival/libunarchive/copy_file_chunk_fd.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <unistd.h>
-#include <sys/types.h>
-#include "libbb.h"
-
-/* Copy CHUNKSIZE bytes (or untill EOF if chunksize == -1)
- * from SRC_FILE to DST_FILE. */
-extern int copy_file_chunk_fd(int src_fd, int dst_fd, off_t chunksize)
-{
- size_t nread, size;
- char buffer[BUFSIZ];
-
- while (chunksize != 0) {
- if (chunksize > BUFSIZ) {
- size = BUFSIZ;
- } else {
- size = chunksize;
- }
- nread = xread(src_fd, buffer, size);
- if (nread == 0) {
- return 1;
- }
-
- if (write (dst_fd, buffer, nread) != nread) {
- error_msg_and_die ("Short write");
- }
-
- if (chunksize != -1) {
- chunksize -= nread;
- }
- }
-
- return 0;
-}
diff --git a/archival/libunarchive/data_align.c b/archival/libunarchive/data_align.c
index d6243bc..037242f 100644
--- a/archival/libunarchive/data_align.c
+++ b/archival/libunarchive/data_align.c
@@ -1,13 +1,34 @@
-#include <errno.h>
+/*
+ * 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.
+ */
+
#include <sys/types.h>
+
+#include <errno.h>
#include <unistd.h>
-#include "unarchive.h"
+
#include "libbb.h"
+#include "unarchive.h"
-extern const unsigned short data_align(const int src_fd, const unsigned int offset, const unsigned short align_to)
+extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary)
{
- const unsigned short skip_amount = (align_to - (offset % align_to)) % align_to;
- seek_sub_file(src_fd, skip_amount);
+ const unsigned short skip_amount = (boundary - (archive_handle->offset % boundary)) % boundary;
+
+ archive_handle->seek(archive_handle, skip_amount);
+
+ archive_handle->offset += skip_amount;
- return(skip_amount);
+ return;
}
diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
index f839be3..dda5147 100644
--- a/archival/libunarchive/data_extract_all.c
+++ b/archival/libunarchive/data_extract_all.c
@@ -1,4 +1,21 @@
+/*
+ * 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.
+ */
+
#include <sys/types.h>
+
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
@@ -6,6 +23,7 @@
#include <utime.h>
#include <unistd.h>
#include <stdlib.h>
+
#include "libbb.h"
#include "unarchive.h"
@@ -21,7 +39,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
free(name);
}
- /* Create the file */
+ /* Create the filesystem entry */
switch(file_header->mode & S_IFMT) {
case S_IFREG: {
#ifdef CONFIG_CPIO
@@ -36,7 +54,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
{
/* Regular file */
dst_fd = xopen(file_header->name, O_WRONLY | O_CREAT);
- copy_file_chunk_fd(archive_handle->src_fd, dst_fd, file_header->size);
+ archive_copy_file(archive_handle, dst_fd);
close(dst_fd);
}
break;
diff --git a/archival/libunarchive/data_extract_to_buffer.c b/archival/libunarchive/data_extract_to_buffer.c
index 02ee4b3..3fcab6d 100644
--- a/archival/libunarchive/data_extract_to_buffer.c
+++ b/archival/libunarchive/data_extract_to_buffer.c
@@ -1,11 +1,26 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include "unarchive.h"
+/*
+ * 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.
+ */
+
#include "libbb.h"
+#include "unarchive.h"
extern void data_extract_to_buffer(archive_handle_t *archive_handle)
{
archive_handle->buffer = xmalloc(archive_handle->file_header->size + 1);
- xread_all(archive_handle->src_fd, archive_handle->buffer, archive_handle->file_header->size);
+ archive_xread_all(archive_handle, archive_handle->buffer, archive_handle->file_header->size);
+
}
diff --git a/archival/libunarchive/data_extract_to_stdout.c b/archival/libunarchive/data_extract_to_stdout.c
index 00687b3..8be2fa2 100644
--- a/archival/libunarchive/data_extract_to_stdout.c
+++ b/archival/libunarchive/data_extract_to_stdout.c
@@ -1,8 +1,22 @@
-#include <stdlib.h>
-#include <stdio.h>
+/*
+ * 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.
+ */
+
#include "unarchive.h"
extern void data_extract_to_stdout(archive_handle_t *archive_handle)
{
- copy_file_chunk_fd(archive_handle->src_fd, fileno(stdout), archive_handle->file_header->size);
+ archive_copy_file(archive_handle, fileno(stdout));
}
diff --git a/archival/libunarchive/data_skip.c b/archival/libunarchive/data_skip.c
index 4e63d43..b82c906 100644
--- a/archival/libunarchive/data_skip.c
+++ b/archival/libunarchive/data_skip.c
@@ -23,5 +23,5 @@
extern void data_skip(archive_handle_t *archive_handle)
{
- seek_sub_file(archive_handle->src_fd, archive_handle->file_header->size);
+ archive_handle->seek(archive_handle, archive_handle->file_header->size);
}
diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c
index dd15b81..00ae5a4 100644
--- a/archival/libunarchive/decompress_bunzip2.c
+++ b/archival/libunarchive/decompress_bunzip2.c
@@ -57,10 +57,8 @@
#include <string.h>
#include <getopt.h>
#include <unistd.h>
-#include <busybox.h>
-//#define TRUE 1
-//#define FALSE 0
+#include "busybox.h"
#define MTFA_SIZE 4096
#define MTFL_SIZE 16
@@ -142,9 +140,10 @@ typedef struct {
} bz_stream;
+#define BZ_MAX_UNUSED 5000
typedef struct {
bz_stream strm;
- FILE *handle;
+ int fd;
unsigned char initialisedOk;
char buf[BZ_MAX_UNUSED];
int lastErr;
@@ -237,18 +236,11 @@ typedef struct {
int *save_gPerm;
} DState;
-int BZ2_rNums[512];
-char inName[FILE_NAME_LEN];
-char outName[FILE_NAME_LEN];
-int srcMode;
-int opMode;
-unsigned char deleteOutputOnInterrupt;
-FILE *outputHandleJustInCase;
-int numFileNames;
-int numFilesProcessed;
-int exitValue;
+static int BZ2_rNums[512];
+static bzFile *bzf;
+static int bzerr = BZ_OK;
-const unsigned int BZ2_crc32Table[256] = {
+static const unsigned int BZ2_crc32Table[256] = {
/*-- Ugly, innit? --*/
@@ -330,16 +322,6 @@ static void bz_rand_udp_mask(DState *s)
s->rNToGo--;
}
-static unsigned char myfeof(FILE *f)
-{
- int c = fgetc(f);
- if (c == EOF) {
- return(TRUE);
- }
- ungetc(c, f);
- return(FALSE);
-}
-
static void BZ2_hbCreateDecodeTables(int *limit, int *base, int *perm, unsigned char *length, int minLen, int maxLen, int alphaSize )
{
int pp, i, j, vec;
@@ -1292,43 +1274,8 @@ save_state_and_return:
return retVal;
}
-//int BZ2_bzDecompressInit(bz_stream* strm, int verbosity_level, int small)
-static inline int BZ2_bzDecompressInit(bz_stream* strm)
-{
- DState* s;
-
-// if (verbosity_level < 0 || verbosity_level > 4) {
-// return BZ_PARAM_ERROR;
-// }
- s = xmalloc(sizeof(DState));
- s->strm = strm;
- strm->state = s;
- s->state = BZ_X_MAGIC_1;
- s->bsLive = 0;
- s->bsBuff = 0;
- s->calculatedCombinedCRC = 0;
- s->tt = NULL;
- s->currBlockNo = 0;
-
- return BZ_OK;
-}
-
-static void bz_seterr(int eee, int *bzerror, bzFile **bzf)
+static void BZ2_bzReadClose(void)
{
- if (bzerror != NULL) {
- *bzerror = eee;
- }
- if (*bzf != NULL) {
- (*bzf)->lastErr = eee;
- }
-}
-
-static void BZ2_bzReadClose(int *bzerror, void *b)
-{
- bzFile* bzf = (bzFile*)b;
-
- bz_seterr(BZ_OK, bzerror, &bzf);
-
if (bzf->initialisedOk) {
bz_stream *strm = &(bzf->strm);
DState *s;
@@ -1588,31 +1535,22 @@ int BZ2_bzDecompress(bz_stream *strm)
return(0); /*NOTREACHED*/
}
-static inline int BZ2_bzRead(int *bzerror, void *b, void *buf, int len)
+extern ssize_t read_bz2(int fd, void *buf, size_t count)
{
int n, ret;
- bzFile *bzf = (bzFile*)b;
-
- bz_seterr(BZ_OK, bzerror, &bzf);
- if (len == 0) {
- bz_seterr(BZ_OK, bzerror, &bzf);
- return 0;
+ bzerr = BZ_OK;
+ if (count == 0) {
+ return(0);
}
-
- bzf->strm.avail_out = len;
+ bzf->strm.avail_out = count;
bzf->strm.next_out = buf;
while (1) {
- if (ferror(bzf->handle)) {
- bz_seterr(BZ_IO_ERROR, bzerror, &bzf);
- return 0;
- }
- if ((bzf->strm.avail_in == 0) && !myfeof(bzf->handle)) {
- n = fread(bzf->buf, sizeof(unsigned char), BZ_MAX_UNUSED, bzf->handle);
- if (ferror(bzf->handle)) {
- bz_seterr(BZ_IO_ERROR, bzerror, &bzf);
- return 0;
+ if (bzf->strm.avail_in == 0) {
+ n = xread(bzf->fd, bzf->buf, BZ_MAX_UNUSED);
+ if (n == 0) {
+ break;
}
bzf->bufN = n;
bzf->strm.avail_in = bzf->bufN;
@@ -1622,48 +1560,43 @@ static inline int BZ2_bzRead(int *bzerror, void *b, void *buf, int len)
ret = BZ2_bzDecompress(&(bzf->strm));
if ((ret != BZ_OK) && (ret != BZ_STREAM_END)) {
- bz_seterr(ret, bzerror, &bzf);
- return 0;
- }
-
- if ((ret == BZ_OK) && myfeof(bzf->handle) &&
- (bzf->strm.avail_in == 0) && (bzf->strm.avail_out > 0)) {
- bz_seterr(BZ_UNEXPECTED_EOF, bzerror, &bzf);
- return(0);
+ error_msg_and_die("Error decompressing");
}
if (ret == BZ_STREAM_END) {
- bz_seterr(BZ_STREAM_END, bzerror, &bzf);
- return(len - bzf->strm.avail_out);
+ bzerr = BZ_STREAM_END;
+ return(count - bzf->strm.avail_out);
}
if (bzf->strm.avail_out == 0) {
- bz_seterr(BZ_OK, bzerror, &bzf);
- return(len);
+ bzerr = BZ_OK;
+ return(count);
}
}
- return(0); /*not reached*/
+ return(0);
}
-static inline void *BZ2_bzReadOpen(int *bzerror, FILE *f, void *unused, int nUnused)
+extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused)
{
- bzFile *bzf = xmalloc(sizeof(bzFile));
- int ret;
-
- bz_seterr(BZ_OK, bzerror, &bzf);
+ DState *s;
+ bzf = xmalloc(sizeof(bzFile));
bzf->initialisedOk = FALSE;
- bzf->handle = f;
- bzf->bufN = 0;
-
- ret = BZ2_bzDecompressInit(&(bzf->strm));
- if (ret != BZ_OK) {
- bz_seterr(ret, bzerror, &bzf);
- free(bzf);
- return NULL;
- }
+ bzf->fd = fd;
+ bzf->bufN = 0;
+
+ s = xmalloc(sizeof(DState));
+ s->strm = &bzf->strm;
+ s->state = BZ_X_MAGIC_1;
+ s->bsLive = 0;
+ s->bsBuff = 0;
+ s->calculatedCombinedCRC = 0;
+ s->tt = NULL;
+ s->currBlockNo = 0;
+ bzf->strm.state = s;
while (nUnused > 0) {
- bzf->buf[bzf->bufN] = *((unsigned char *)(unused)); bzf->bufN++;
+ bzf->buf[bzf->bufN] = *((unsigned char *)(unused));
+ bzf->bufN++;
unused = ((void *)( 1 + ((unsigned char *)(unused)) ));
nUnused--;
}
@@ -1671,119 +1604,55 @@ static inline void *BZ2_bzReadOpen(int *bzerror, FILE *f, void *unused, int nUnu
bzf->strm.next_in = bzf->buf;
bzf->initialisedOk = TRUE;
- return bzf;
+
+ return;
}
-extern unsigned char uncompressStream(FILE *zStream, FILE *stream)
+extern unsigned char uncompressStream(int src_fd, int dst_fd)
{
unsigned char unused[BZ_MAX_UNUSED];
unsigned char *unusedTmp;
unsigned char obuf[5000];
- bzFile *bzf = NULL;
- int bzerr_dummy;
- int bzerr;
int nread;
int nUnused;
int streamNo;
- int ret;
int i;
nUnused = 0;
streamNo = 0;
- if (ferror(stream)) {
- goto errhandler_io;
- }
- if (ferror(zStream)) {
- goto errhandler_io;
- }
-
while(1) {
- bzf = BZ2_bzReadOpen(&bzerr, zStream, unused, nUnused);
- if (bzf == NULL || bzerr != BZ_OK) {
- goto errhandler;
- }
+ BZ2_bzReadOpen(src_fd, unused, nUnused);
streamNo++;
while (bzerr == BZ_OK) {
- nread = BZ2_bzRead(&bzerr, bzf, obuf, 5000);
+ nread = read_bz2(src_fd, obuf, 5000);
if (bzerr == BZ_DATA_ERROR_MAGIC) {
- goto errhandler;
- }
- if ((bzerr == BZ_OK || bzerr == BZ_STREAM_END) && nread > 0) {
- fwrite(obuf, sizeof(unsigned char), nread, stream);
+ error_msg_and_die("invalid magic");
}
- if (ferror(stream)) {
- goto errhandler_io;
+ if (((bzerr == BZ_OK) || (bzerr == BZ_STREAM_END)) && (nread > 0)) {
+ if (write(dst_fd, obuf, nread) != nread) {
+ BZ2_bzReadClose();
+ perror_msg_and_die("Couldnt write to file");
+ }
}
}
- if (bzerr != BZ_STREAM_END) {
- goto errhandler;
- }
nUnused = bzf->strm.avail_in;
unusedTmp = bzf->strm.next_in;
- bz_seterr(BZ_OK, &bzerr, &bzf);
+
for (i = 0; i < nUnused; i++) {
unused[i] = unusedTmp[i];
}
- BZ2_bzReadClose(&bzerr, bzf);
- if ((nUnused == 0) && myfeof(zStream)) {
+ BZ2_bzReadClose();
+ if (nUnused == 0) {
break;
}
}
- if (ferror(zStream)) {
- goto errhandler_io;
- }
- ret = fclose(zStream);
- if (ret == EOF) {
- goto errhandler_io;
- }
- if (ferror(stream)) {
- goto errhandler_io;
- }
- ret = fflush(stream);
- if (ret != 0) {
- goto errhandler_io;
- }
- if (stream != stdout) {
- ret = fclose(stream);
- if (ret == EOF) {
- goto errhandler_io;
- }
+ close(src_fd);
+ if (dst_fd != fileno(stdout)) {
+ close(dst_fd);
}
return TRUE;
-
-errhandler:
- BZ2_bzReadClose ( &bzerr_dummy, bzf );
- switch (bzerr) {
- case BZ_IO_ERROR:
-errhandler_io:
- error_msg("\n%s: I/O or other error, bailing out. "
- "Possible reason follows.\n", applet_name);
- perror(applet_name);
- exit(1);
- case BZ_DATA_ERROR:
- error_msg("\n%s: Data integrity error when decompressing.\n", applet_name);
- exit(2);
- case BZ_UNEXPECTED_EOF:
- error_msg("\n%s: Compressed file ends unexpectedly;\n\t"
- "perhaps it is corrupted? *Possible* reason follows.\n", applet_name);
- perror(applet_name);
- exit(2);
- case BZ_DATA_ERROR_MAGIC:
- if (zStream != stdin) {
- fclose(zStream);
- }
- if (stream != stdout) {
- fclose(stream);
- }
- if (streamNo == 1) {
- return FALSE;
- } else {
- return TRUE;
- }
- }
-
- return(TRUE); /*notreached*/
}
+
diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c
index e87eb77..b2b9e0b 100644
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -50,9 +50,9 @@ extern char get_header_tar(archive_handle_t *archive_handle)
char *tmp;
/* Align header */
- archive_handle->offset += data_align(archive_handle->src_fd, archive_handle->offset, 512);
+ data_align(archive_handle, 512);
- if (xread_all_eof(archive_handle->src_fd, tar.raw, 512) == 0) {
+ if (archive_xread_all_eof(archive_handle, tar.raw, 512) == 0) {
/* End of file */
return(EXIT_FAILURE);
}
@@ -72,7 +72,6 @@ extern char get_header_tar(archive_handle_t *archive_handle)
#endif
error_msg_and_die("Invalid tar magic");
}
-
/* Do checksum on headers */
for (i = 0; i < 148 ; i++) {
sum += tar.raw[i];
@@ -138,7 +137,7 @@ extern char get_header_tar(archive_handle_t *archive_handle)
char *longname;
longname = xmalloc(file_header->size + 1);
- xread_all(archive_handle->src_fd, longname, file_header->size);
+ archive_xread_all(archive_handle, longname, file_header->size);
longname[file_header->size] = '\0';
archive_handle->offset += file_header->size;
@@ -150,7 +149,7 @@ extern char get_header_tar(archive_handle_t *archive_handle)
char *linkname;
linkname = xmalloc(file_header->size + 1);
- xread_all(archive_handle->src_fd, linkname, file_header->size);
+ archive_xread_all(archive_handle, linkname, file_header->size);
linkname[file_header->size] = '\0';
archive_handle->offset += file_header->size;
diff --git a/archival/libunarchive/get_header_tar_gz.c b/archival/libunarchive/get_header_tar_gz.c
index 24d19fb..f0d4b13 100644
--- a/archival/libunarchive/get_header_tar_gz.c
+++ b/archival/libunarchive/get_header_tar_gz.c
@@ -29,7 +29,10 @@ extern char get_header_tar_gz(archive_handle_t *archive_handle)
int pid;
unsigned char magic[2];
- xread_all(archive_handle->src_fd, &magic, 2);
+ /* Cant lseek over pipe's */
+ archive_handle->seek = seek_by_char;
+
+ archive_xread_all(archive_handle, &magic, 2);
if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
error_msg_and_die("Invalid gzip magic");
}
diff --git a/archival/libunarchive/init_handle.c b/archival/libunarchive/init_handle.c
index 12d9e71..4b01034 100644
--- a/archival/libunarchive/init_handle.c
+++ b/archival/libunarchive/init_handle.c
@@ -1,3 +1,20 @@
+/*
+ * 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.
+ */
+
+#include <unistd.h>
#include <string.h>
#include "libbb.h"
#include "unarchive.h"
@@ -13,6 +30,8 @@ archive_handle_t *init_handle(void)
archive_handle->action_header = header_skip;
archive_handle->action_data = data_skip;
archive_handle->filter = filter_accept_all;
+ archive_handle->read = read;
+ archive_handle->seek = seek_by_jump;
return(archive_handle);
}
diff --git a/archival/libunarchive/seek_by_char.c b/archival/libunarchive/seek_by_char.c
new file mode 100644
index 0000000..f33935c
--- /dev/null
+++ b/archival/libunarchive/seek_by_char.c
@@ -0,0 +1,25 @@
+/*
+ * 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 Library 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.
+ */
+
+#include "unarchive.h"
+
+extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount)
+{
+ unsigned int i;
+ for (i = 0; i < amount; i++) {
+ archive_xread_char(archive_handle);
+ }
+}
diff --git a/archival/libunarchive/seek_by_jump.c b/archival/libunarchive/seek_by_jump.c
new file mode 100644
index 0000000..efad97f
--- /dev/null
+++ b/archival/libunarchive/seek_by_jump.c
@@ -0,0 +1,35 @@
+/*
+ * 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 Library 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.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "libbb.h"
+#include "unarchive.h"
+
+extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount)
+{
+ if (lseek(archive_handle->src_fd, (off_t) amount, SEEK_CUR) == (off_t) -1) {
+#if CONFIG_FEATURE_UNARCHIVE_TAPE
+ if (errno == ESPIPE) {
+ seek_by_char(archive_handle, amount);
+ } else
+#endif
+ perror_msg_and_die("Seek failure");
+ }
+}
diff --git a/archival/libunarchive/unpack_ar_archive.c b/archival/libunarchive/unpack_ar_archive.c
index 923b8a0..afa3672 100644
--- a/archival/libunarchive/unpack_ar_archive.c
+++ b/archival/libunarchive/unpack_ar_archive.c
@@ -24,7 +24,7 @@ extern void unpack_ar_archive(archive_handle_t *ar_archive)
{
char magic[7];
- xread_all(ar_archive->src_fd, magic, 7);
+ archive_xread_all(ar_archive, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
error_msg_and_die("Invalid ar magic");
}
diff --git a/archival/tar.c b/archival/tar.c
index 48d6ce2..e1e121a 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -627,7 +627,7 @@ int tar_main(int argc, char **argv)
tar_handle = init_handle();
tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS;
- while ((opt = getopt(argc, argv, "ctxT:X:C:f:Opvz")) != -1) {
+ while ((opt = getopt(argc, argv, "cjtxT:X:C:f:Opvz")) != -1) {
switch (opt) {
/* One and only one of these is required */
#ifdef CONFIG_FEATURE_TAR_CREATE
@@ -684,9 +684,8 @@ int tar_main(int argc, char **argv)
break;
#endif
#ifdef CONFIG_FEATURE_TAR_BZIP2
- /* Not enabled yet */
case 'j':
- archive_handle->archive_action = bunzip2;
+ tar_handle->read = read_bz2;
break;
#endif
default:
@@ -703,14 +702,8 @@ int tar_main(int argc, char **argv)
/* Setup an array of filenames to work with */
/* TODO: This is the same as in ar, seperate function ? */
while (optind < argc) {
-#if 0
- char absolute_path[PATH_MAX];
- realpath(argv[optind], absolute_path);
- tar_handle->accept = add_to_list(tar_handle->accept, absolute_path);
-#endif
tar_handle->accept = add_to_list(tar_handle->accept, argv[optind]);
optind++;
-
}
if ((tar_handle->accept) || (tar_handle->reject)) {
@@ -744,13 +737,21 @@ int tar_main(int argc, char **argv)
if ((tar_filename[0] == '-') && (tar_filename[1] == '\0')) {
tar_handle->src_fd = fileno(stdin);
} else {
+ tar_handle->seek = seek_by_jump;
tar_handle->src_fd = xopen(tar_filename, O_RDONLY);
}
#ifdef CONFIG_FEATURE_TAR_GZIP
if (get_header_ptr == get_header_tar_gz) {
+ tar_handle->seek = seek_by_char;
get_header_tar_gz(tar_handle);
} else
-#endif /* CONFIG_FEATURE_TAR_CREATE */
+#endif /* CONFIG_FEATURE_TAR_GZIP */
+#ifdef CONFIG_FEATURE_TAR_BZIP2
+ if (tar_handle->read == read_bz2) {
+ BZ2_bzReadOpen(tar_handle->src_fd, NULL, 0);
+ while (get_header_tar(tar_handle) == EXIT_SUCCESS);
+ } else
+#endif /* CONFIG_FEATURE_TAR_BZIP2 */
while (get_header_tar(tar_handle) == EXIT_SUCCESS);
diff --git a/archival/unzip.c b/archival/unzip.c
index 5a22d24..4c1e5ce 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -136,13 +136,14 @@ extern int unzip_main(int argc, char **argv)
if (*argv[optind] == '-') {
archive_handle->src_fd = fileno(stdin);
- } else {
+ archive_handle->seek = seek_by_char;
+ } else {
archive_handle->src_fd = xopen(argv[optind++], O_RDONLY);
- }
+ }
if ((base_dir) && (chdir(base_dir))) {
perror_msg_and_die("Couldnt chdir");
- }
+ }
while (optind < argc) {
archive_handle->filter = filter_accept_list;
@@ -155,7 +156,7 @@ extern int unzip_main(int argc, char **argv)
int dst_fd;
/* TODO Endian issues */
- xread_all(archive_handle->src_fd, &magic, 4);
+ archive_xread_all(archive_handle, &magic, 4);
archive_handle->offset += 4;
if (magic == ZIP_CDS_MAGIC) {
@@ -166,7 +167,7 @@ extern int unzip_main(int argc, char **argv)
}
/* Read the file header */
- xread_all(archive_handle->src_fd, zip_header.raw, 26);
+ archive_xread_all(archive_handle, zip_header.raw, 26);
archive_handle->offset += 26;
archive_handle->file_header->mode = S_IFREG | 0777;
@@ -176,7 +177,7 @@ extern int unzip_main(int argc, char **argv)
/* Read filename */
archive_handle->file_header->name = xmalloc(zip_header.formated.filename_len + 1);
- xread_all(archive_handle->src_fd, archive_handle->file_header->name, zip_header.formated.filename_len);
+ archive_xread_all(archive_handle, archive_handle->file_header->name, zip_header.formated.filename_len);
archive_handle->offset += zip_header.formated.filename_len;
archive_handle->file_header->name[zip_header.formated.filename_len] = '\0';
@@ -228,7 +229,7 @@ extern int unzip_main(int argc, char **argv)
/* skip over duplicate crc, compressed size and uncompressed size */
unsigned short i;
for (i = 0; i != 12; i++) {
- xread_char(archive_handle->src_fd);
+ archive_xread_char(archive_handle);
}
archive_handle->offset += 12;
}
diff --git a/include/libbb.h b/include/libbb.h
index bc81123..ec4ff3a 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -333,7 +333,6 @@ extern int obscure(const char *old, const char *newval, const struct passwd *pwd
extern int xopen(const char *pathname, int flags);
extern ssize_t xread(int fd, void *buf, size_t count);
-extern ssize_t xread_all_eof(int fd, void *buf, size_t count);
extern void xread_all(int fd, void *buf, size_t count);
extern unsigned char xread_char(int fd);
diff --git a/include/unarchive.h b/include/unarchive.h
index 7926dcc..b13388b 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -7,14 +7,8 @@
#define ARCHIVE_EXTRACT_QUIET 8
#include <sys/types.h>
-#include <stdio.h>
-typedef struct gunzip_s {
- unsigned short buffer_count;
- unsigned char *buffer;
- unsigned int crc;
- unsigned int count;
-} gunzip_t;
+#include <stdio.h>
typedef struct file_headers_s {
char *name;
@@ -58,6 +52,12 @@ typedef struct archive_handle_s {
/* Count the number of bytes processed */
off_t offset;
+ /* Function that reads data: read or read_bz */
+ ssize_t (*read)(int fd, void *buf, size_t count);
+
+ /* Function that skips data: read_by_char or read_by_skip */
+ void (*seek)(const struct archive_handle_s *archive_handle, const unsigned int amount);
+
/* Temperary storage */
char *buffer;
@@ -90,11 +90,21 @@ extern char get_header_ar(archive_handle_t *archive_handle);
extern char get_header_tar(archive_handle_t *archive_handle);
extern char get_header_tar_gz(archive_handle_t *archive_handle);
-extern unsigned char uncompressStream(FILE *zStream, FILE *stream);
+extern void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount);
+extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int amount);
-extern void seek_sub_file(int src_fd, unsigned int amount);
-extern const unsigned short data_align(const int src_fd, const unsigned int offset, const unsigned short align_to);
+extern unsigned char archive_xread_char(const archive_handle_t *archive_handle);
+extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count);
+extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf, const size_t count);
+extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned char *buf, size_t count);
+
+extern void data_align(archive_handle_t *archive_handle, const unsigned short boundary);
extern const llist_t *add_to_list(const llist_t *old_head, const char *new_item);
-extern int copy_file_chunk_fd(int src_fd, int dst_fd, unsigned long long chunksize);
+extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd);
extern const llist_t *find_list_entry(const llist_t *list, const char *filename);
+
+extern ssize_t read_bz2(int fd, void *buf, size_t count);
+extern void BZ2_bzReadOpen(int fd, void *unused, int nUnused);
+extern unsigned char uncompressStream(int src_fd, int dst_fd);
+
#endif
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 2249e26..820a0d7 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -92,7 +92,7 @@ extern int xopen(const char *pathname, int flags)
{
int ret;
- ret = open(pathname, flags);
+ ret = open(pathname, flags, 0777);
if (ret == -1) {
perror_msg_and_die("%s", pathname);
}
@@ -121,17 +121,6 @@ extern void xread_all(int fd, void *buf, size_t count)
return;
}
-extern ssize_t xread_all_eof(int fd, void *buf, size_t count)
-{
- ssize_t size;
-
- size = xread(fd, buf, count);
- if ((size != 0) && (size != count)) {
- error_msg_and_die("Short read");
- }
- return(size);
-}
-
extern unsigned char xread_char(int fd)
{
char tmp;