AC_DEFINE(HAVE_SOCKETPAIR, 1, [Define to 1 if you have the "socketpair" function])
fi
+AC_CHECK_FUNCS(getpass, , [AC_LIBOBJ(lib/getpass)])
+
if test x"$with_included_popt" != x"yes"; then
AC_CHECK_LIB(popt, poptGetContext, , [with_included_popt=yes])
fi
--- /dev/null
+/*
+ * An implementation of getpass for systems that lack one.
+ *
+ * Copyright (C) 2013 Roman Donchenko
+ *
+ * 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, visit the http://fsf.org website.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <termios.h>
+
+#include "rsync.h"
+
+char *getpass(const char *prompt)
+{
+ static char password[256];
+
+ BOOL tty_changed = False, read_success;
+ struct termios tty_old, tty_new;
+ FILE *in = stdin, *out = stderr;
+ FILE *tty = fopen("/dev/tty", "w+");
+
+ if (tty)
+ in = out = tty;
+
+ if (tcgetattr(fileno(in), &tty_old) == 0) {
+ tty_new = tty_old;
+ tty_new.c_lflag &= ~(ECHO | ISIG);
+
+ if (tcsetattr(fileno(in), TCSAFLUSH, &tty_new) == 0)
+ tty_changed = True;
+ }
+
+ if (!tty_changed)
+ fputs("(WARNING: will be visible) ", out);
+ fputs(prompt, out);
+ fflush(out);
+
+ read_success = fgets(password, sizeof password, in) != NULL;
+
+ /* Print the newline that hasn't been echoed. */
+ fputc('\n', out);
+
+ if (tty_changed)
+ tcsetattr(fileno(in), TCSAFLUSH, &tty_old);
+
+ if (tty)
+ fclose(tty);
+
+ if (read_success) {
+ /* Remove the trailing newline. */
+ size_t password_len = strlen(password);
+ if (password_len && password[password_len - 1] == '\n')
+ password[password_len - 1] = '\0';
+
+ return password;
+ }
+
+ return NULL;
+}