diff --git a/loginutils/login.c b/loginutils/login.c index 569053c12..cac4349b2 100644 --- a/loginutils/login.c +++ b/loginutils/login.c @@ -608,7 +608,9 @@ int login_main(int argc UNUSED_PARAM, char **argv) * But without this, bash 3.0 will not enable ctrl-c either. * Maybe bash is buggy? * Need to find out what standards say about /bin/login - - * should we leave SIGINT etc enabled or disabled? */ + * should we leave SIGINT etc enabled or disabled? + * Also note: sulogin does not do it! Why? + */ signal(SIGINT, SIG_DFL); /* Exec login shell with no additional parameters */ diff --git a/loginutils/sulogin.c b/loginutils/sulogin.c index 5f1c1178f..2f87c77c0 100644 --- a/loginutils/sulogin.c +++ b/loginutils/sulogin.c @@ -111,6 +111,11 @@ int sulogin_main(int argc UNUSED_PARAM, char **argv) } } + /* + * Note: login does this (should we do it too?): + */ + /*signal(SIGINT, SIG_DFL);*/ + /* Exec login shell with no additional parameters. Never returns. */ exec_login_shell(shell); } diff --git a/shell/ash.c b/shell/ash.c index 4c5dd1298..12b2db3a9 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -10784,18 +10784,24 @@ preadfd(void) line_input_state->path_lookup = pathval(); # endif reinit_unicode_for_ash(); + again: nr = read_line_input(line_input_state, cmdedit_prompt, buf, IBUFSIZ); if (nr == 0) { /* ^C pressed, "convert" to SIGINT */ write(STDOUT_FILENO, "^C", 2); raise(SIGINT); + /* raise(SIGINT) did not work! (e.g. if SIGINT + * is SIG_INGed on startup, it stays SIG_IGNed) + */ if (trap[SIGINT]) { buf[0] = '\n'; buf[1] = '\0'; return 1; } exitstatus = 128 + SIGINT; - return -1; + /* bash behavior on ^C + ignored SIGINT: */ + write(STDOUT_FILENO, "\n", 1); + goto again; } if (nr < 0) { if (errno == 0) {