diff options
| -rw-r--r-- | shell/hush.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/shell/hush.c b/shell/hush.c index 9b87e28..80a3992 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -1831,7 +1831,10 @@ static void restore_G_args(save_arg_t *sv, char **argv) * SIGHUP (interactive): * send SIGCONT to stopped jobs, send SIGHUP to all jobs and exit //HUP: we don't need to do this, kernel does this for us -//HUP: ("orphaned process group" handling according to POSIX) +//HUP: ("orphaned process group" handling according to POSIX). +//HUP: We still have a SIGHUP handler, just to have tty pgrp restored +//HUP: (otherwise e.g. Midnight Commander backgrounds when hush +//HUP: started from it gets killed by SIGHUP). * SIGTTIN, SIGTTOU, SIGTSTP (if job control is on): ignore * Note that ^Z is handled not by trapping SIGTSTP, but by seeing * that all pipe members are stopped. Try this in bash: @@ -1933,7 +1936,7 @@ enum { SPECIAL_INTERACTIVE_SIGS = 0 | (1 << SIGTERM) | (1 << SIGINT) -//HUP | (1 << SIGHUP) + | (1 << SIGHUP) , SPECIAL_JOBSTOP_SIGS = 0 #if ENABLE_HUSH_JOB @@ -2179,7 +2182,7 @@ static int check_and_run_traps(void) last_sig = sig; break; #if ENABLE_HUSH_JOB -//HUP case SIGHUP: { + case SIGHUP: { //HUP//TODO: why are we doing this? ash and dash don't do this, //HUP//they have no handler for SIGHUP at all, //HUP//they rely on kernel to send SIGHUP+SIGCONT to orphaned process groups @@ -2194,8 +2197,8 @@ static int check_and_run_traps(void) //HUP if (kill(- job->pgrp, SIGHUP) == 0) //HUP kill(- job->pgrp, SIGCONT); //HUP } -//HUP sigexit(SIGHUP); -//HUP } + sigexit(SIGHUP); + } #endif #if ENABLE_HUSH_FAST case SIGCHLD: |