OSDN Git Service

Abstract read and seek in unarchiving code, convert bunzip to file descriptors, suppo...
authorGlenn L McGrath <bug1@ihug.co.nz>
Sun, 3 Nov 2002 14:05:15 +0000 (14:05 -0000)
committerGlenn L McGrath <bug1@ihug.co.nz>
Sun, 3 Nov 2002 14:05:15 +0000 (14:05 -0000)
28 files changed:
archival/ar.c
archival/bunzip2.c
archival/config.in
archival/cpio.c
archival/libunarchive/Makefile.in
archival/libunarchive/archive_copy_file.c [new file with mode: 0644]
archival/libunarchive/archive_xread.c [new file with mode: 0644]
archival/libunarchive/archive_xread_all.c [moved from archival/libunarchive/seek_sub_file.c with 74% similarity]
archival/libunarchive/archive_xread_all_eof.c [new file with mode: 0644]
archival/libunarchive/archive_xread_char.c [new file with mode: 0644]
archival/libunarchive/copy_file_chunk_fd.c [deleted file]
archival/libunarchive/data_align.c
archival/libunarchive/data_extract_all.c
archival/libunarchive/data_extract_to_buffer.c
archival/libunarchive/data_extract_to_stdout.c
archival/libunarchive/data_skip.c
archival/libunarchive/decompress_bunzip2.c
archival/libunarchive/get_header_tar.c
archival/libunarchive/get_header_tar_gz.c
archival/libunarchive/init_handle.c
archival/libunarchive/seek_by_char.c [new file with mode: 0644]
archival/libunarchive/seek_by_jump.c [new file with mode: 0644]
archival/libunarchive/unpack_ar_archive.c
archival/tar.c
archival/unzip.c
include/libbb.h
include/unarchive.h
libbb/xfuncs.c

index 9979273..71cde4e 100644 (file)
@@ -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");
        }
index 9f346f2..d5c06f4 100644 (file)
  *  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;
index 689561b..3ec03fd 100644 (file)
@@ -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
index 7615175..0d06149 100644 (file)
@@ -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 */
index 4320777..e406f75 100644 (file)
@@ -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 (file)
index 0000000..22355cc
--- /dev/null
@@ -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 (file)
index 0000000..7fde4c0
--- /dev/null
@@ -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);
+}
similarity index 74%
rename from archival/libunarchive/seek_sub_file.c
rename to archival/libunarchive/archive_xread_all.c
index 733bb36..ef8cc01 100644 (file)
  *  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 (file)
index 0000000..3cfbbd8
--- /dev/null
@@ -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 (file)
index 0000000..4c665e1
--- /dev/null
@@ -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 (file)
index fb513e6..0000000
+++ /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;
-}
index d6243bc..037242f 100644 (file)
@@ -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;
 }
index f839be3..dda5147 100644 (file)
@@ -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;
index 02ee4b3..3fcab6d 100644 (file)
@@ -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);
+
 }
index 00687b3..8be2fa2 100644 (file)
@@ -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));
 }
index 4e63d43..b82c906 100644 (file)
@@ -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);
 }
index dd15b81..00ae5a4 100644 (file)
 #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*/
 }
+
index e87eb77..b2b9e0b 100644 (file)
@@ -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;
 
index 24d19fb..f0d4b13 100644 (file)
@@ -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");
        }
index 12d9e71..4b01034 100644 (file)
@@ -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 (file)
index 0000000..f33935c
--- /dev/null
@@ -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 (file)
index 0000000..efad97f
--- /dev/null
@@ -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");
+       }
+}
index 923b8a0..afa3672 100644 (file)
@@ -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");
        }
index 48d6ce2..e1e121a 100644 (file)
@@ -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);
 
index 5a22d24..4c1e5ce 100644 (file)
@@ -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;
                }
index bc81123..ec4ff3a 100644 (file)
@@ -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);
 
index 7926dcc..b13388b 100644 (file)
@@ -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
index 2249e26..820a0d7 100644 (file)
@@ -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;