diff options
Diffstat (limited to 'mailutils/mail.c')
| -rw-r--r-- | mailutils/mail.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/mailutils/mail.c b/mailutils/mail.c index a7e43c0..eceb890 100644 --- a/mailutils/mail.c +++ b/mailutils/mail.c @@ -6,23 +6,15 @@ * * Licensed under GPLv2, see file LICENSE in this source tree. */ +#include <sys/prctl.h> #include "libbb.h" #include "mail.h" -static void kill_helper(void) -{ - if (G.helper_pid > 0) { - kill(G.helper_pid, SIGTERM); - G.helper_pid = 0; - } -} - // generic signal handler static void signal_handler(int signo) { #define err signo if (SIGALRM == signo) { - kill_helper(); bb_error_msg_and_die("timed out"); } @@ -66,16 +58,15 @@ void FAST_FUNC launch_helper(const char **argv) // child stdout [1] -> parent stdin [0] if (!G.helper_pid) { - // child: try to execute connection helper + // child + // if parent dies, get SIGTERM + prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0); + // try to execute connection helper // NB: SIGCHLD & SIGALRM revert to SIG_DFL on exec BB_EXECVP_or_die((char**)argv); } - // parent - // check whether child is alive - //redundant:signal_handler(SIGCHLD); - // child seems OK -> parent goes on - atexit(kill_helper); + // parent goes on } char* FAST_FUNC send_mail_command(const char *fmt, const char *param) |