/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ 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
+ 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,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
# endif
#endif
-/****************************************************************************
-display the prompt and wait for input. Call callback() regularly
-****************************************************************************/
-char *smb_readline(char *prompt, void (*callback)(void),
- char **(completion_fn)(char *text, int start, int end))
+#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 */
+
+static bool smb_rl_done;
+
+#if 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)
{
- char *ret;
+ smb_rl_done = true;
#if HAVE_LIBREADLINE
- if (completion_fn) {
- rl_attempted_completion_function = completion_fn;
- }
+ rl_done = 1;
+#endif
+}
- if (callback) rl_event_hook = (Function *)callback;
- ret = readline(prompt);
- if (ret && *ret) add_history(ret);
- return ret;
-#else
+/****************************************************************************
+ 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;
- extern FILE *dbf;
- static pstring line;
+ char *line = NULL;
struct timeval timeout;
- int fd = fileno(stdin);
+ int fd = x_fileno(x_stdin);
+ char *ret;
- fprintf(dbf, "%s", prompt);
- fflush(dbf);
+ /* Prompt might be NULL in non-interactive mode. */
+ if (prompt) {
+ x_fprintf(x_stdout, "%s", prompt);
+ x_fflush(x_stdout);
+ }
- while (1) {
+ line = (char *)SMB_MALLOC(BUFSIZ);
+ if (!line) {
+ return NULL;
+ }
+
+ while (!smb_rl_done) {
timeout.tv_sec = 5;
timeout.tv_usec = 0;
+ if (fd < 0 || fd >= FD_SETSIZE) {
+ errno = EBADF;
+ break;
+ }
+
FD_ZERO(&fds);
FD_SET(fd,&fds);
-
- if (sys_select_intr(fd+1,&fds,&timeout) == 1) {
- ret = fgets(line, sizeof(line), stdin);
+
+ if (sys_select_intr(fd+1,&fds,NULL,NULL,&timeout) == 1) {
+ ret = x_fgets(line, BUFSIZ, x_stdin);
+ if (ret == 0) {
+ SAFE_FREE(line);
+ }
return ret;
}
- if (callback) callback();
+ 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(x_fileno(x_stdin)) || getenv("CLI_FORCE_INTERACTIVE");
+ if (!interactive) {
+ return smb_readline_replacement(NULL, callback, completion_fn);
}
+
+#if HAVE_LIBREADLINE
+
+ /* 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 HAVE_DECL_RL_EVENT_HOOK
+ if (callback)
+ rl_event_hook = (Function *)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
}
/****************************************************************************
history
****************************************************************************/
-void cmd_history(void)
+int cmd_history(void)
{
-#if defined(HAVE_LIBREADLINE)
+#if defined(HAVE_LIBREADLINE) && defined(HAVE_HISTORY_LIST)
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;
}
git.samba.org / samba.git / blobdiff