diff options
Diffstat (limited to 'mailutils')
| -rw-r--r-- | mailutils/mail.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/mailutils/mail.c b/mailutils/mail.c index 71f46c8..68883ff 100644 --- a/mailutils/mail.c +++ b/mailutils/mail.c @@ -48,6 +48,12 @@ void FAST_FUNC launch_helper(const char **argv) xpipe(pipes); xpipe(pipes + 2); + // NB: handler must be installed before vfork + bb_signals(0 + + (1 << SIGCHLD) + + (1 << SIGALRM) + , signal_handler); + G.helper_pid = vfork(); if (G.helper_pid < 0) bb_perror_msg_and_die("vfork"); @@ -60,15 +66,12 @@ void FAST_FUNC launch_helper(const char **argv) if (!G.helper_pid) { // child: try to execute connection helper + // NB: SIGCHLD & SIGALRM revert to SIG_DFL on exec BB_EXECVP(*argv, (char **)argv); _exit(127); } // parent - bb_signals(0 - + (1 << SIGCHLD) - + (1 << SIGALRM) - , signal_handler); // check whether child is alive //redundant:signal_handler(SIGCHLD); // child seems OK -> parent goes on |