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Check at least one context is specified

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This commit is contained in:
Glenn L McGrath 2003-11-20 09:53:31 +00:00
parent ba49651de9
commit bebc40b406
1 changed files with 3 additions and 0 deletions
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3
archival/tar.c
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@ -662,6 +662,9 @@ int tar_main(int argc, char **argv)
if(opt & 0x80000000UL) if(opt & 0x80000000UL)
bb_show_usage(); bb_show_usage();
ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT); ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT);
if (ctx_flag == 0) {
bb_show_usage();
}
if(ctx_flag & CTX_TEST) { if(ctx_flag & CTX_TEST) {
if ((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)) {