Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/libcli/smbreadline/smbreadline.c b/libcli/smbreadline/smbreadline.c
new file mode 100644
index 0000000..0a95c63
--- /dev/null
+++ b/libcli/smbreadline/smbreadline.c
@@ -0,0 +1,184 @@
+/*
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "../lib/util/select.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "system/readline.h"
+#include "libcli/smbreadline/smbreadline.h"
+
+#undef malloc
+
+#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
+
+static bool smb_rl_done;
+
+#ifdef HAVE_LIBREADLINE
+/*
+ * MacOS/X does not have rl_done in readline.h, but
+ * readline.so has it
+ */
+extern int rl_done;
+#endif
+
+void smb_readline_done(void)
+{
+	smb_rl_done = true;
+#ifdef HAVE_LIBREADLINE
+	rl_done = 1;
+#endif
+}
+
+/****************************************************************************
+ 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))
+{
+	char *line = NULL;
+	int fd = fileno(stdin);
+	char *ret;
+
+	/* Prompt might be NULL in non-interactive mode. */
+	if (prompt) {
+		printf("%s", prompt);
+		fflush(stdout);
+	}
+
+	line = (char *)malloc(BUFSIZ);
+	if (!line) {
+		return NULL;
+	}
+
+	while (!smb_rl_done) {
+		struct pollfd pfd;
+
+		ZERO_STRUCT(pfd);
+		pfd.fd = fd;
+		pfd.events = POLLIN|POLLHUP;
+
+		if (sys_poll_intr(&pfd, 1, 5000) == 1) {
+			ret = fgets(line, BUFSIZ, stdin);
+			if (ret == 0) {
+				SAFE_FREE(line);
+			}
+			return ret;
+		}
+		if (callback) {
+			callback();
+		}
+	}
+	SAFE_FREE(line);
+	return NULL;
+}
+
+/****************************************************************************
+ 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))
+{
+	char *ret;
+	bool interactive;
+
+	interactive = isatty(fileno(stdin)) || getenv("CLI_FORCE_INTERACTIVE");
+	if (!interactive) {
+		return smb_readline_replacement(NULL, callback, completion_fn);
+	}
+
+#ifdef HAVE_LIBREADLINE
+
+	/* Aargh!  Readline does bizarre 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;
+
+		/*
+		 * We only want sensible characters as the word-break chars
+		 * for the most part. This allows us to tab through a path.
+		 */
+		rl_basic_word_break_characters = " \t\n";
+	}
+
+#ifdef HAVE_DECL_RL_EVENT_HOOK
+	if (callback)
+		rl_event_hook = (rl_hook_func_t *)callback;
+#endif
+	ret = readline(prompt);
+	if (ret && *ret)
+		add_history(ret);
+
+#else
+	ret = smb_readline_replacement(prompt, callback, completion_fn);
+#endif
+
+	return ret;
+}
+
+/****************************************************************************
+ * 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
+}