diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/hush.c | 115 |
1 files changed, 57 insertions, 58 deletions
diff --git a/shell/hush.c b/shell/hush.c index 78a8f5c..a5f0599 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -7803,6 +7803,8 @@ static int run_list(struct pipe *pi) /* Go through list of pipes, (maybe) executing them. */ for (; pi; pi = IF_HUSH_LOOPS(rword == RES_DONE ? loop_top : ) pi->next) { + int r; + if (G.flag_SIGINT) break; if (G_flag_return_in_progress == 1) @@ -7953,74 +7955,71 @@ static int run_list(struct pipe *pi) * after run_pipe to collect any background children, * even if list execution is to be stopped. */ debug_printf_exec(": run_pipe with %d members\n", pi->num_cmds); - { - int r; -#if ENABLE_HUSH_LOOPS - G.flag_break_continue = 0; -#endif - rcode = r = run_pipe(pi); /* NB: rcode is a smallint */ - if (r != -1) { - /* We ran a builtin, function, or group. - * rcode is already known - * and we don't need to wait for anything. */ - debug_printf_exec(": builtin/func exitcode %d\n", rcode); - G.last_exitcode = rcode; - check_and_run_traps(); #if ENABLE_HUSH_LOOPS - /* Was it "break" or "continue"? */ - if (G.flag_break_continue) { - smallint fbc = G.flag_break_continue; - /* We might fall into outer *loop*, - * don't want to break it too */ - if (loop_top) { - G.depth_break_continue--; - if (G.depth_break_continue == 0) - G.flag_break_continue = 0; - /* else: e.g. "continue 2" should *break* once, *then* continue */ - } /* else: "while... do... { we are here (innermost list is not a loop!) };...done" */ - if (G.depth_break_continue != 0 || fbc == BC_BREAK) { - checkjobs(NULL, 0 /*(no pid to wait for)*/); - break; - } - /* "continue": simulate end of loop */ - rword = RES_DONE; - continue; - } + G.flag_break_continue = 0; #endif - if (G_flag_return_in_progress == 1) { + rcode = r = run_pipe(pi); /* NB: rcode is a smalluint, r is int */ + if (r != -1) { + /* We ran a builtin, function, or group. + * rcode is already known + * and we don't need to wait for anything. */ + debug_printf_exec(": builtin/func exitcode %d\n", rcode); + G.last_exitcode = rcode; + check_and_run_traps(); +#if ENABLE_HUSH_LOOPS + /* Was it "break" or "continue"? */ + if (G.flag_break_continue) { + smallint fbc = G.flag_break_continue; + /* We might fall into outer *loop*, + * don't want to break it too */ + if (loop_top) { + G.depth_break_continue--; + if (G.depth_break_continue == 0) + G.flag_break_continue = 0; + /* else: e.g. "continue 2" should *break* once, *then* continue */ + } /* else: "while... do... { we are here (innermost list is not a loop!) };...done" */ + if (G.depth_break_continue != 0 || fbc == BC_BREAK) { checkjobs(NULL, 0 /*(no pid to wait for)*/); break; } - } else if (pi->followup == PIPE_BG) { - /* What does bash do with attempts to background builtins? */ - /* even bash 3.2 doesn't do that well with nested bg: - * try "{ { sleep 10; echo DEEP; } & echo HERE; } &". - * I'm NOT treating inner &'s as jobs */ + /* "continue": simulate end of loop */ + rword = RES_DONE; + continue; + } +#endif + if (G_flag_return_in_progress == 1) { + checkjobs(NULL, 0 /*(no pid to wait for)*/); + break; + } + } else if (pi->followup == PIPE_BG) { + /* What does bash do with attempts to background builtins? */ + /* even bash 3.2 doesn't do that well with nested bg: + * try "{ { sleep 10; echo DEEP; } & echo HERE; } &". + * I'm NOT treating inner &'s as jobs */ #if ENABLE_HUSH_JOB - if (G.run_list_level == 1) - insert_bg_job(pi); + if (G.run_list_level == 1) + insert_bg_job(pi); #endif - /* Last command's pid goes to $! */ - G.last_bg_pid = pi->cmds[pi->num_cmds - 1].pid; - debug_printf_exec(": cmd&: exitcode EXIT_SUCCESS\n"); + /* Last command's pid goes to $! */ + G.last_bg_pid = pi->cmds[pi->num_cmds - 1].pid; + debug_printf_exec(": cmd&: exitcode EXIT_SUCCESS\n"); /* Check pi->pi_inverted? "! sleep 1 & echo $?": bash says 1. dash and ash says 0 */ - G.last_exitcode = rcode = EXIT_SUCCESS; - check_and_run_traps(); - } else { + G.last_exitcode = rcode = EXIT_SUCCESS; + check_and_run_traps(); + } else { #if ENABLE_HUSH_JOB - if (G.run_list_level == 1 && G_interactive_fd) { - /* Waits for completion, then fg's main shell */ - rcode = checkjobs_and_fg_shell(pi); - debug_printf_exec(": checkjobs_and_fg_shell exitcode %d\n", rcode); - } else -#endif - { /* This one just waits for completion */ - rcode = checkjobs(pi, 0 /*(no pid to wait for)*/); - debug_printf_exec(": checkjobs exitcode %d\n", rcode); - } - G.last_exitcode = rcode; - check_and_run_traps(); + if (G.run_list_level == 1 && G_interactive_fd) { + /* Waits for completion, then fg's main shell */ + rcode = checkjobs_and_fg_shell(pi); + debug_printf_exec(": checkjobs_and_fg_shell exitcode %d\n", rcode); + } else +#endif + { /* This one just waits for completion */ + rcode = checkjobs(pi, 0 /*(no pid to wait for)*/); + debug_printf_exec(": checkjobs exitcode %d\n", rcode); } + G.last_exitcode = rcode; + check_and_run_traps(); } /* Analyze how result affects subsequent commands */ |