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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2020-12-13 16:36:28 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2020-12-13 16:36:28 +0100 |
| commit | 31df5a3eee74862312bbf89449d223aeae13aaf7 (patch) | |
| tree | 199b8a43006378db47ea8412c5207b5e03986473 /shell | |
| parent | 6c5f4296dca1d836695d3ec77e7429bd40ca5ce3 (diff) | |
| download | busybox-31df5a3eee74862312bbf89449d223aeae13aaf7.tar.gz | |
ash: reset SIGHUP earlier: allows HUP traps in .profile, closes 13371
function old new delta
ash_main 1188 1203 +15
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/shell/ash.c b/shell/ash.c index 40695dee0..b271dd031 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -14340,6 +14340,17 @@ procargs(char **argv) shellparam.nparam++; xargv++; } + + /* Interactive bash re-enables SIGHUP which is SIG_IGNed on entry. + * Try: + * trap '' hup; bash; echo RET # type "kill -hup $$", see SIGHUP having effect + * trap '' hup; bash -c 'kill -hup $$; echo ALIVE' # here SIGHUP is SIG_IGNed + * NB: must do it before setting up signals (in optschanged()) + * and reading .profile etc (after we return from here): + */ + if (iflag) + signal(SIGHUP, SIG_DFL); + optschanged(); return login_sh; @@ -14510,14 +14521,6 @@ int ash_main(int argc UNUSED_PARAM, char **argv) } #endif state4: /* XXX ??? - why isn't this before the "if" statement */ - - /* Interactive bash re-enables SIGHUP which is SIG_IGNed on entry. - * Try: - * trap '' hup; bash; echo RET # type "kill -hup $$", see SIGHUP having effect - * trap '' hup; bash -c 'kill -hup $$; echo ALIVE' # here SIGHUP is SIG_IGNed - */ - signal(SIGHUP, SIG_DFL); - cmdloop(1); } #if PROFILE |