X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=gui.c;h=6e44b09d37cc574846f1de0a4d325e586c69dad0;hp=65b2ac05d748ab1bb7d24e3b752d906d2ffca5c5;hb=e90c6c0a;hpb=742f9cee2e64f2360e6adecc99426c69a34c147d

diff --git a/gui.c b/gui.c
index 65b2ac05..6e44b09d 100644
--- a/gui.c
+++ b/gui.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1998-2012 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1998-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -50,7 +50,7 @@ static struct ringbuffer *bot_win_rb;
 
 static unsigned scroll_position;
 
-static int cmd_died, curses_active;
+static int curses_active;
 static pid_t cmd_pid;
 
 static int command_fds[2];
@@ -287,14 +287,20 @@ static char *configfile_exists(void)
 	return file_exists(tmp)? tmp: NULL;
 }
 
-/*
- * print num spaces to curses window
- */
+/* Print given number of spaces to curses window. */
 static void add_spaces(WINDOW* win, unsigned int num)
 {
-	while (num > 0) {
-		num--;
-		waddstr(win, " ");
+	char space[] = "                                ";
+	unsigned sz = sizeof(space);
+
+	while (num >= sz)  {
+		waddstr(win, space);
+		num -= sz;
+	}
+	if (num > 0) {
+		assert(num < sz);
+		space[num] = '\0';
+		waddstr(win, space);
 	}
 }
 
@@ -533,7 +539,8 @@ static void setup_signal_handling(void)
 	para_sigaction(SIGHUP, SIG_IGN);
 }
 
-__noreturn static void do_exit(int ret)
+/* kill every process in the process group and exit */
+__noreturn static void kill_pg_and_die(int ret)
 {
 	para_sigaction(SIGTERM, SIG_IGN);
 	kill(0, SIGTERM);
@@ -552,7 +559,7 @@ static void shutdown_curses(void)
 __noreturn static void finish(int ret)
 {
 	shutdown_curses();
-	do_exit(ret);
+	kill_pg_and_die(ret);
 }
 
 /*
@@ -567,7 +574,7 @@ __noreturn __printf_2_3 static void msg_n_exit(int ret, const char* fmt, ...)
 	va_start(argp, fmt);
 	vfprintf(outfd, fmt, argp);
 	va_end(argp);
-	do_exit(ret);
+	kill_pg_and_die(ret);
 }
 
 static void print_welcome(void)
@@ -834,10 +841,8 @@ reap_next_child:
 	ret = para_reap_child(&pid);
 	if (ret <= 0)
 		return;
-	if (pid == cmd_pid) {
+	if (pid == cmd_pid)
 		cmd_pid = 0;
-		cmd_died = 1;
-	}
 	goto reap_next_child;
 }
 
@@ -951,7 +956,7 @@ static int open_stat_pipe(void)
 	return ret;
 }
 
-#define COMMAND_BUF_SIZE 4096
+#define COMMAND_BUF_SIZE 32768
 
 /*
  * This is the core select loop. Besides the (internal) signal
@@ -993,6 +998,8 @@ repeat:
 		if (command_fds[1] >= 0)
 			para_fd_set(command_fds[1], &rfds, &max_fileno);
 	}
+	if (mode == GETCH_MODE || mode == COMMAND_MODE)
+		para_fd_set(STDIN_FILENO, &rfds, &max_fileno);
 	ret = para_select(max_fileno + 1, &rfds, NULL, &tv);
 	if (ret <= 0)
 		goto check_return; /* skip fd checks */
@@ -1023,6 +1030,10 @@ repeat:
 				if (command_fds[!i] < 0) /* both fds closed */
 					return 0;
 			}
+			if (cbo[i] == COMMAND_BUF_SIZE - 1) {
+				PARA_NOTICE_LOG("discarding overlong line");
+				cbo[i] = 0;
+			}
 		}
 	}
 	ret = read_stat_pipe(&rfds);
@@ -1060,10 +1071,8 @@ check_return:
 			return ret;
 		break;
 	case EXTERNAL_MODE:
-		if (cmd_died) {
-			cmd_died = 0;
+		if (cmd_pid == 0)
 			return 0;
-		}
 	}
 	goto repeat;
 }
@@ -1137,7 +1146,6 @@ static void external_cmd(char *cmd)
 	shutdown_curses();
 	if (para_exec_cmdline_pid(&cmd_pid, cmd, fds) < 0)
 		return;
-	cmd_died = 0;
 	do_select(EXTERNAL_MODE);
 	init_curses();
 }
@@ -1486,8 +1494,7 @@ int main(int argc, char *argv[])
 	_argc = argc;
 	_argv = argv;
 
-	if (gui_cmdline_parser(argc, argv, &conf) != 0)
-		exit(EXIT_FAILURE);
+	gui_cmdline_parser(argc, argv, &conf); /* exits on errors */
 	HANDLE_VERSION_FLAG("gui", conf);
 	cf = configfile_exists();
 	if (!cf && conf.config_file_given) {