much better readline support from Simo Sorce, with some mods from me

to make it a bit simpler

1 files changed, 126 insertions, 0 deletions

diff --git a/source/lib/readline.c b/source/lib/readline.c
new file mode 100644
index 00000000000..d031fa2fb49
--- /dev/null
+++ b/source/lib/readline.c
@@ -0,0 +1,126 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 3.0
+   Samba readline wrapper implementation
+   Copyright (C) Simo Sorce 2001, 
+   Copyright (C) Andrew Tridgell 2001
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/* user input through readline callback */
+static char *command_line;
+static int *readline_event;
+
+/****************************************************************************
+samba readline callback function
+****************************************************************************/
+static int smb_rl_callback_handler(char *line_read)
+{
+	if (!command_line) return RL_ERROR;
+
+	if (line_read)
+	{
+		pstrcpy(command_line, line_read);
+#if defined(HAVE_LIBREADLINE)
+#if    defined(HAVE_READLINE_HISTORY_H) || defined(HAVE_HISTORY_H)
+		if (strlen(line_read)) add_history(line_read);
+		free(line_read);
+#endif
+#endif
+		*readline_event = RL_GOT_LINE;
+	} else {
+		*readline_event = RL_GOT_EOF;
+	}
+	return 0;
+}
+
+void smb_rl_read_char (void)
+{
+#ifdef HAVE_LIBREADLINE
+	*readline_event = RL_NO_EVENTS;
+	rl_callback_read_char ();
+#else
+	pstring line;
+	fgets(line, sizeof(line), stdin);
+	smb_rl_callback_handler(line);
+#endif
+}
+
+/****************************************************************************
+init samba readline
+****************************************************************************/
+void init_smb_readline(char *prg_name, char *cline_ptr, int *event_ptr)
+{
+	command_line = cline_ptr;
+	readline_event = event_ptr;
+
+#ifdef HAVE_LIBREADLINE
+	rl_readline_name = prg_name;
+	rl_already_prompted = 1;
+	rl_callback_handler_install(NULL, (VFunction *)&smb_rl_callback_handler);
+#endif
+}
+
+/****************************************************************************
+display the prompt
+****************************************************************************/
+void smb_readline_prompt(char *prompt)
+{
+	extern FILE *dbf;
+	
+	fprintf(dbf, "%s", prompt);
+	fflush(dbf);
+
+#ifdef HAVE_LIBREADLINE
+	rl_callback_handler_remove();
+	rl_callback_handler_install(prompt, (VFunction *)&smb_rl_callback_handler);
+#endif
+}
+
+/****************************************************************************
+removes readline callback handler
+****************************************************************************/
+void smb_readline_remove_handler(void)
+{
+#ifdef HAVE_LIBREADLINE
+	rl_callback_handler_remove ();
+#endif
+
+	readline_event = NULL;
+	command_line = NULL;
+}
+
+/****************************************************************************
+history
+****************************************************************************/
+void cmd_history(void)
+{
+#if defined(HAVE_LIBREADLINE) && (defined(HAVE_READLINE_HISTORY_H) || defined(HAVE_HISTORY_H))
+	HIST_ENTRY **hlist;
+	int i;
+
+	hlist = history_list ();
+	
+	for (i = 0; hlist && hlist[i]; i++) {
+		DEBUG(0, ("%d: %s\n", i, hlist[i]->line));
+	}
+#else
+	DEBUG(0,("no history without readline support\n"));
+#endif
+}
+