diff options
Diffstat (limited to 'libbb/vfork_daemon_rexec.c')
| -rw-r--r-- | libbb/vfork_daemon_rexec.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c index 1567d89be..2c4c930b2 100644 --- a/libbb/vfork_daemon_rexec.c +++ b/libbb/vfork_daemon_rexec.c @@ -146,6 +146,15 @@ int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char ** memcpy(tmp_argv, argv, (argc+1) * sizeof(tmp_argv[0])); /* Finally we can call NOFORK applet's main() */ rc = applet_main[applet_no](argc, tmp_argv); + + /* The whole reason behind nofork_save_area is that <applet>_main + * may exit non-locally! For example, in hush Ctrl-Z tries to + * (modulo bugs) to dynamically create child (backgrounded task) + * if it detects that Ctrl-Z was pressed when a NOFORK was running! + * Testcase: interactive "rm -i". + * Don't fool yourself into thinking "and <applet>_main() returns + * quickly here" and removing "useless" nofork_save_area code. */ + } else { /* xfunc died in NOFORK applet */ /* in case they meant to return 0... */ if (rc == -2222) @@ -154,7 +163,7 @@ int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char ** /* Restoring globals */ restore_nofork_data(old); - return rc; + return rc & 0xff; /* don't confuse people with "exitcodes" >255 */ } int run_nofork_applet(int applet_no, char **argv) |