diff options
Diffstat (limited to 'archival')
| -rw-r--r-- | archival/Makefile.in | 2 | ||||
| -rw-r--r-- | archival/config.in | 4 | ||||
| -rw-r--r-- | archival/gunzip.c | 4 | ||||
| -rw-r--r-- | archival/libunarchive/decompress_uncompress.c | 2 | ||||
| -rw-r--r-- | archival/libunarchive/uncompress.c | 2 | ||||
| -rw-r--r-- | archival/uncompress.c | 133 |
6 files changed, 143 insertions, 4 deletions
diff --git a/archival/Makefile.in b/archival/Makefile.in index c53171e..226cde6 100644 --- a/archival/Makefile.in +++ b/archival/Makefile.in @@ -23,6 +23,7 @@ ARCHIVAL_DIR:=$(TOPDIR)archival/ endif ARCHIVAL-y:= +ARCHIVAL-$(CONFIG_APT_GET) += ARCHIVAL-$(CONFIG_AR) += ar.o ARCHIVAL-$(CONFIG_BUNZIP2) += bunzip2.o ARCHIVAL-$(CONFIG_CPIO) += cpio.o @@ -32,6 +33,7 @@ ARCHIVAL-$(CONFIG_GUNZIP) += gunzip.o ARCHIVAL-$(CONFIG_GZIP) += gzip.o ARCHIVAL-$(CONFIG_RPM2CPIO) += rpm2cpio.o ARCHIVAL-$(CONFIG_TAR) += tar.o +ARCHIVAL-$(CONFIG_UNCOMPRESS) += uncompress.o ARCHIVAL-$(CONFIG_UNZIP) += unzip.o libraries-y+=$(ARCHIVAL_DIR)$(ARCHIVAL_AR) diff --git a/archival/config.in b/archival/config.in index dd97909..689561b 100644 --- a/archival/config.in +++ b/archival/config.in @@ -18,6 +18,9 @@ if [ "$CONFIG_DPKG_DEB" = "y" ] ; then bool ' -x support only' CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY fi bool 'gunzip' CONFIG_GUNZIP +if [ "$CONFIG_GUNZIP" = "y" ]; then + bool ' Uncompress support' CONFIG_FEATURE_GUNZIP_UNCOMPRESS +fi bool 'gzip' CONFIG_GZIP bool 'rpm2cpio' CONFIG_RPM2CPIO bool 'tar' CONFIG_TAR @@ -31,5 +34,6 @@ fi if [ "$CONFIG_CPIO" = "y" -o "$CONFIG_TAR" = "y" ] ; then bool ' Enable tape drive support' CONFIG_FEATURE_UNARCHIVE_TAPE fi +bool 'uncompress' CONFIG_UNCOMPRESS bool 'unzip' CONFIG_UNZIP endmenu diff --git a/archival/gunzip.c b/archival/gunzip.c index b6f3e08..e9963a8 100644 --- a/archival/gunzip.c +++ b/archival/gunzip.c @@ -143,7 +143,7 @@ extern int gunzip_main(int argc, char **argv) new_path = xstrdup(old_path); extension = strrchr(new_path, '.'); -#ifdef CONFIG_FEATURE_UNCOMPRESS +#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS if (extension && (strcmp(extension, ".Z") == 0)) { *extension = '\0'; } else @@ -172,7 +172,7 @@ extern int gunzip_main(int argc, char **argv) unsigned char magic2; magic2 = xread_char(src_fd); -#ifdef CONFIG_FEATURE_UNCOMPRESS +#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS if (magic2 == 0x9d) { status = uncompress(src_fd, dst_fd); } else diff --git a/archival/libunarchive/decompress_uncompress.c b/archival/libunarchive/decompress_uncompress.c index 02835cf..302201f 100644 --- a/archival/libunarchive/decompress_uncompress.c +++ b/archival/libunarchive/decompress_uncompress.c @@ -1,7 +1,7 @@ #include "config.h" #include "libbb.h" -#ifdef CONFIG_FEATURE_UNCOMPRESS +#ifdef CONFIG_UNCOMPRESS || defined CONFIG_FEATURE_GUNZIP_UNCOMPRESS /* uncompress for busybox -- (c) 2002 Robert Griebl * diff --git a/archival/libunarchive/uncompress.c b/archival/libunarchive/uncompress.c index 02835cf..302201f 100644 --- a/archival/libunarchive/uncompress.c +++ b/archival/libunarchive/uncompress.c @@ -1,7 +1,7 @@ #include "config.h" #include "libbb.h" -#ifdef CONFIG_FEATURE_UNCOMPRESS +#ifdef CONFIG_UNCOMPRESS || defined CONFIG_FEATURE_GUNZIP_UNCOMPRESS /* uncompress for busybox -- (c) 2002 Robert Griebl * diff --git a/archival/uncompress.c b/archival/uncompress.c new file mode 100644 index 0000000..877bcc7 --- /dev/null +++ b/archival/uncompress.c @@ -0,0 +1,133 @@ +/* vi: set sw=4 ts=4: */ +/* + * Uncompress applet for busybox (c) 2002 Glenn McGrath + * + * 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 <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "libbb.h" +#include "unarchive.h" + +int uncompress_main(int argc, char **argv) +{ + const char gunzip_to_stdout = 1; + const char gunzip_force = 2; + char status = EXIT_SUCCESS; + char flags = 0; + int opt; + + while ((opt = getopt(argc, argv, "cfh")) != -1) { + switch (opt) { + case 'c': + flags |= gunzip_to_stdout; + break; + case 'f': + flags |= gunzip_force; + break; + default: + show_usage(); /* exit's inside usage */ + } + } + + do { + struct stat stat_buf; + const char *old_path = argv[optind]; + const char *delete_path = NULL; + char *new_path = NULL; + int src_fd; + int dst_fd; + + optind++; + + if (old_path == NULL || strcmp(old_path, "-") == 0) { + src_fd = fileno(stdin); + flags |= gunzip_to_stdout; + } else { + src_fd = xopen(old_path, O_RDONLY); + + /* Get the time stamp on the input file. */ + if (stat(old_path, &stat_buf) < 0) { + error_msg_and_die("Couldn't stat file %s", old_path); + } + } + + /* Check that the input is sane. */ + if (isatty(src_fd) && ((flags & gunzip_force) == 0)) { + error_msg_and_die + ("compressed data not read from terminal. Use -f to force it."); + } + + /* Set output filename and number */ + if (flags & gunzip_to_stdout) { + dst_fd = fileno(stdout); + } else { + char *extension; + + new_path = xstrdup(old_path); + + extension = strrchr(new_path, '.'); + if (!extension || (strcmp(extension, ".Z") != 0)) { + error_msg_and_die("Invalid extension"); + } + *extension = '\0'; + + /* Open output file */ + dst_fd = xopen(new_path, O_WRONLY | O_CREAT); + + /* Set permissions on the file */ + chmod(new_path, stat_buf.st_mode); + + /* If unzip succeeds remove the old file */ + delete_path = old_path; + } + + /* do the decompression, and cleanup */ + if ((xread_char(src_fd) == 0x1f) && (xread_char(src_fd) == 0x9d)) { + status = uncompress(src_fd, dst_fd); + } else { + error_msg_and_die("Invalid magic"); + } + + if ((status != EXIT_SUCCESS) && (new_path)) { + /* Unzip failed, remove new path instead of old path */ + delete_path = new_path; + } + + if (dst_fd != fileno(stdout)) { + close(dst_fd); + } + if (src_fd != fileno(stdin)) { + close(src_fd); + } + + /* delete_path will be NULL if in test mode or from stdin */ + if (delete_path && (unlink(delete_path) == -1)) { + error_msg_and_die("Couldn't remove %s", delete_path); + } + + free(new_path); + + } while (optind < argc); + + return status; +} |