first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 159 insertions, 0 deletions

diff --git a/source4/lib/cmdline/readline.c b/source4/lib/cmdline/readline.c
new file mode 100644
index 0000000000..c5da88b3e0
--- /dev/null
+++ b/source4/lib/cmdline/readline.c
@@ -0,0 +1,159 @@
+/* 
+   Unix SMB/CIFS implementation.
+   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"
+
+#ifdef HAVE_LIBREADLINE
+#  ifdef HAVE_READLINE_READLINE_H
+#    include <readline/readline.h>
+#    ifdef HAVE_READLINE_HISTORY_H
+#      include <readline/history.h>
+#    endif
+#  else
+#    ifdef HAVE_READLINE_H
+#      include <readline.h>
+#      ifdef HAVE_HISTORY_H
+#        include <history.h>
+#      endif
+#    else
+#      undef HAVE_LIBREADLINE
+#    endif
+#  endif
+#endif
+
+#ifdef HAVE_NEW_LIBREADLINE
+#  define RL_COMPLETION_CAST (rl_completion_func_t *)
+#else
+/* This type is missing from libreadline<4.0  (approximately) */
+#  define RL_COMPLETION_CAST
+#endif /* HAVE_NEW_LIBREADLINE */
+
+/****************************************************************************
+ Display the prompt and wait for input. Call callback() regularly
+****************************************************************************/
+
+static char *smb_readline_replacement(const char *prompt, void (*callback)(void), 
+				char **(completion_fn)(const char *text, int start, int end))
+{
+	fd_set fds;
+	static pstring line;
+	struct timeval timeout;
+	int fd = x_fileno(x_stdin);
+	char *ret;
+
+	do_debug("%s", prompt);
+
+	while (1) {
+		timeout.tv_sec = 5;
+		timeout.tv_usec = 0;
+
+		FD_ZERO(&fds);
+		FD_SET(fd,&fds);
+	
+		if (sys_select_intr(fd+1,&fds,NULL,NULL,&timeout) == 1) {
+			ret = x_fgets(line, sizeof(line), x_stdin);
+			return ret;
+		}
+		if (callback)
+			callback();
+	}
+}
+
+/****************************************************************************
+ Display the prompt and wait for input. Call callback() regularly.
+****************************************************************************/
+
+char *smb_readline(const char *prompt, void (*callback)(void), 
+		   char **(completion_fn)(const char *text, int start, int end))
+{
+#if HAVE_LIBREADLINE
+	if (isatty(x_fileno(x_stdin))) {
+		char *ret;
+
+		/* Aargh!  Readline does bizzare things with the terminal width
+		that mucks up expect(1).  Set CLI_NO_READLINE in the environment
+		to force readline not to be used. */
+
+		if (getenv("CLI_NO_READLINE"))
+			return smb_readline_replacement(prompt, callback, completion_fn);
+
+		if (completion_fn) {
+			/* The callback prototype has changed slightly between
+			different versions of Readline, so the same function
+			works in all of them to date, but we get compiler
+			warnings in some.  */
+			rl_attempted_completion_function = RL_COMPLETION_CAST completion_fn;
+		}
+
+		if (callback)
+			rl_event_hook = (Function *)callback;
+		ret = readline(prompt);
+		if (ret && *ret)
+			add_history(ret);
+		return ret;
+	} else
+#endif
+	return smb_readline_replacement(prompt, callback, completion_fn);
+}
+
+/****************************************************************************
+ * return line buffer text
+ ****************************************************************************/
+const char *smb_readline_get_line_buffer(void)
+{
+#if defined(HAVE_LIBREADLINE)
+	return rl_line_buffer;
+#else
+	return NULL;
+#endif
+}
+
+/****************************************************************************
+ * set completion append character
+ ***************************************************************************/
+void smb_readline_ca_char(char c)
+{
+#if defined(HAVE_LIBREADLINE)
+	rl_completion_append_character = c;
+#endif
+}
+
+
+/****************************************************************************
+history
+****************************************************************************/
+int cmd_history(void)
+{
+#if defined(HAVE_LIBREADLINE)
+	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
+
+	return 0;
+}