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| author | Glenn L McGrath | 2003-11-18 20:23:04 +0000 |
|---|---|---|
| committer | Glenn L McGrath | 2003-11-18 20:23:04 +0000 |
| commit | 3b9fc8fe2a0fee6f1128f3f73ff408555ff45df8 (patch) | |
| tree | 073b6ac0a1b25a951e6e1fb5cfbc18888d3c001a /archival/tar.c | |
| parent | de3ea9f049167fdd6813f53af23096b6110afe05 (diff) | |
| download | busybox-3b9fc8fe2a0fee6f1128f3f73ff408555ff45df8.zip busybox-3b9fc8fe2a0fee6f1128f3f73ff408555ff45df8.tar.gz | |
Make unlink old files default behaviour and add a new option -k to
prevent overwritting existing files
Diffstat (limited to 'archival/tar.c')
| -rw-r--r-- | archival/tar.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/archival/tar.c b/archival/tar.c index bee24d8..7516b57 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -595,7 +595,7 @@ static llist_t *append_file_list_to_list(llist_t *list) #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 @@ static const char tar_options[]="ctxjT:X:C:f:Opvz"; #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 @@ int tar_main(int argc, char **argv) /* 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 @@ int tar_main(int argc, char **argv) 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 @@ int tar_main(int argc, char **argv) } 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 |