tar: implement --version for buildroot
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/tar.c b/archival/tar.c
index 566ba34..23ac00e 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -992,6 +992,15 @@
applet_long_options = tar_longopts;
#endif
#if ENABLE_DESKTOP
+ /* Lie to buildroot when it starts asking stupid questions. */
+ if (argv[1] && strcmp(argv[1], "--version") == 0) {
+ // Output of 'tar --version' examples:
+ // tar (GNU tar) 1.15.1
+ // tar (GNU tar) 1.25
+ // bsdtar 2.8.3 - libarchive 2.8.3
+ puts("tar (busybox) " BB_VER);
+ return 0;
+ }
if (argv[1] && argv[1][0] != '-') {
/* Compat:
* 1st argument without dash handles options with parameters