mail: launch_helper(): flush stdio before vfork, set G.helper_pid only in parent

function                                             old     new   delta
launch_helper                                        188     193      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/mailutils/mail.c b/mailutils/mail.c
index 7e9efdbfa..61e5053bc 100644
--- a/mailutils/mail.c
+++ b/mailutils/mail.c
@@ -46,7 +46,8 @@ void FAST_FUNC launch_helper(const char **argv)
                 + (1 << SIGALRM)
                 , signal_handler);
 
-        G.helper_pid = pid = xvfork();
+        fflush_all();
+        pid = xvfork();
         if (pid == 0) {
                 // child
                 close(child_in.wr);
@@ -59,6 +60,7 @@ void FAST_FUNC launch_helper(const char **argv)
                 // NB: SIGCHLD & SIGALRM revert to SIG_DFL on exec
                 BB_EXECVP_or_die((char**)argv);
         }
+        G.helper_pid = pid;
         close(child_out.wr);
         close(child_in.rd);
         xmove_fd(child_out.rd, STDIN_FILENO);