*: introduce and use xfork() and xvfork()

function                                             old     new   delta
launch_helper                                        170     169      -1
setup_heredoc                                        312     302     -10
handle_dir_common                                    367     354     -13
expand_vars_to_list                                 2456    2443     -13
open_transformer                                      89      74     -15
data_extract_to_command                              439     423     -16
do_ipaddr                                           1406    1389     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85)             Total: -85 bytes

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/archival/tar.c b/archival/tar.c
index f49fb129e..9dd74536e 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -514,9 +514,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip)
         (void) &zip_exec;
 # endif
 
-        gzipPid = vfork();
-        if (gzipPid < 0)
-                bb_perror_msg_and_die("vfork");
+        gzipPid = xvfork();
 
         if (gzipPid == 0) {
                 /* child */