[BusyBox-cvs] busybox/archival tar.c,1.179,1.180
Glenn McGrath
bug1 at busybox.net
Tue Nov 18 20:23:08 UTC 2003
Update of /var/cvs/busybox/archival
In directory winder:/tmp/cvs-serv16102/archival
Modified Files:
tar.c
Log Message:
Make unlink old files default behaviour and add a new option -k to
prevent overwritting existing files
Index: tar.c
===================================================================
RCS file: /var/cvs/busybox/archival/tar.c,v
retrieving revision 1.179
retrieving revision 1.180
diff -u -d -r1.179 -r1.180
--- tar.c 14 Nov 2003 12:53:42 -0000 1.179
+++ tar.c 18 Nov 2003 20:23:04 -0000 1.180
@@ -595,7 +595,7 @@
#endif
-static const char tar_options[]="ctxjT:X:C:f:Opvz";
+static const char tar_options[]="ctxjT:X:C:f:Opvzk";
#define CTX_CREATE 1
#define CTX_TEST 2
@@ -609,6 +609,7 @@
#define TAR_OPT_P 512
#define TAR_OPT_VERBOSE 1024
#define TAR_OPT_GZIP 2048
+#define TAR_OPT_KEEP_OLD 4096
int tar_main(int argc, char **argv)
{
@@ -633,7 +634,7 @@
/* Initialise default values */
tar_handle = init_handle();
- tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE;
+ tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE | ARCHIVE_EXTRACT_UNCONDITIONAL;
bb_opt_complementaly = "c~tx:t~cx:x~ct:X*";
opt = bb_getopt_ulflags(argc, argv, tar_options,
@@ -647,29 +648,32 @@
bb_show_usage();
ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT);
if(ctx_flag & CTX_TEST) {
- if ((tar_handle->action_header == header_list) ||
- (tar_handle->action_header == header_verbose_list)) {
- tar_handle->action_header = header_verbose_list;
- } else {
- tar_handle->action_header = header_list;
- }
+ if ((tar_handle->action_header == header_list) ||
+ (tar_handle->action_header == header_verbose_list)) {
+ tar_handle->action_header = header_verbose_list;
+ } else {
+ tar_handle->action_header = header_list;
+ }
}
if(ctx_flag & CTX_EXTRACT) {
if (tar_handle->action_data != data_extract_to_stdout)
- tar_handle->action_data = data_extract_all;
- }
+ tar_handle->action_data = data_extract_all;
+ }
if(opt & TAR_OPT_2STDOUT) {
/* To stdout */
- tar_handle->action_data = data_extract_to_stdout;
+ tar_handle->action_data = data_extract_to_stdout;
}
if(opt & TAR_OPT_VERBOSE) {
- if ((tar_handle->action_header == header_list) ||
- (tar_handle->action_header == header_verbose_list))
- {
- tar_handle->action_header = header_verbose_list;
- } else {
- tar_handle->action_header = header_list;
- }
+ if ((tar_handle->action_header == header_list) ||
+ (tar_handle->action_header == header_verbose_list))
+ {
+ tar_handle->action_header = header_verbose_list;
+ } else {
+ tar_handle->action_header = header_list;
+ }
+ }
+ if (opt & TAR_OPT_KEEP_OLD) {
+ tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL;
}
if(opt & TAR_OPT_GZIP) {
@@ -681,7 +685,7 @@
}
if(opt & TAR_OPT_BZIP2) {
#ifdef CONFIG_FEATURE_TAR_BZIP2
- get_header_ptr = get_header_tar_bz2;
+ get_header_ptr = get_header_tar_bz2;
#else
bb_show_usage();
#endif
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