diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/shell/hush.c b/shell/hush.c index 01690d9..21fa954 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -462,6 +462,7 @@ struct globals { struct pipe *toplevel_list; //// smallint ctrl_z_flag; #endif + smallint flag_SIGINT; #if ENABLE_HUSH_LOOPS smallint flag_break_continue; #endif @@ -881,15 +882,16 @@ static void check_and_run_traps(void) continue; } /* not a trap: special action */ -#if 0 //TODO switch (sig) { - case SIGHUP: ... - break; - case SIGINT: ... + case SIGINT: + G.flag_SIGINT = 1; break; +//TODO +// case SIGHUP: ... +// break; default: /* SIGTERM, SIGQUIT, SIGTTIN, SIGTTOU, SIGTSTP */ + break; } -#endif } } @@ -1195,18 +1197,27 @@ static void get_user_input(struct in_str *i) /* Enable command line editing only while a command line * is actually being read */ do { + G.flag_SIGINT = 0; + /* buglet: SIGINT will not make new prompt to appear _at once_, + * only after <Enter>. (^C will work) */ r = read_line_input(prompt_str, G.user_input_buf, BUFSIZ-1, G.line_input_state); - } while (r == 0); /* repeat if Ctrl-C */ + /* catch *SIGINT* etc (^C is handled by read_line_input) */ + check_and_run_traps(); + } while (r == 0 || G.flag_SIGINT); /* repeat if ^C or SIGINT */ i->eof_flag = (r < 0); if (i->eof_flag) { /* EOF/error detected */ G.user_input_buf[0] = EOF; /* yes, it will be truncated, it's ok */ G.user_input_buf[1] = '\0'; } #else - fputs(prompt_str, stdout); - fflush(stdout); - G.user_input_buf[0] = r = fgetc(i->file); - /*G.user_input_buf[1] = '\0'; - already is and never changed */ + do { + G.flag_SIGINT = 0; + fputs(prompt_str, stdout); + fflush(stdout); + G.user_input_buf[0] = r = fgetc(i->file); + /*G.user_input_buf[1] = '\0'; - already is and never changed */ +//do we need check_and_run_traps()? (maybe only if stdin) + } while (G.flag_SIGINT); i->eof_flag = (r == EOF); #endif i->p = G.user_input_buf; @@ -2845,6 +2856,9 @@ static int run_list(struct pipe *pi) /* Go through list of pipes, (maybe) executing them. */ for (; pi; pi = USE_HUSH_LOOPS(rword == RES_DONE ? loop_top : ) pi->next) { + if (G.flag_SIGINT) + break; + IF_HAS_KEYWORDS(rword = pi->res_word;) IF_HAS_NO_KEYWORDS(rword = RES_NONE;) debug_printf_exec(": rword=%d cond_code=%d skip_more=%d\n", |