revert last two commits. vfork cannot be used in subroutine,

it trashes stack on return

1 files changed, 5 insertions, 2 deletions

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 8caff3f4d..c12391863 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -1008,9 +1008,12 @@ static int popen2(FILE **in, FILE **out, char *command, char *param)
         xpiped_pair(outfd);
 
         fflush(NULL);
-        pid = xvfork();
+        pid = vfork();
 
-        if (pid == 0) { /* child */
+        switch (pid) {
+        case -1:  /* failure */
+                bb_perror_msg_and_die("vfork");
+        case 0:  /* child */
                 /* NB: close _first_, then move fds! */
                 close(infd.wr);
                 close(outfd.rd);