packetstorm sync

1 files changed, 119 insertions, 0 deletions

diff --git a/other/openssh-2.1.1p4/readpass.c b/other/openssh-2.1.1p4/readpass.c
new file mode 100644
index 0000000..c38292f
--- /dev/null
+++ b/other/openssh-2.1.1p4/readpass.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 1988, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "includes.h"
+RCSID("$OpenBSD: readpass.c,v 1.11 2000/06/20 01:39:44 markus Exp $");
+
+#include "xmalloc.h"
+#include "ssh.h"
+
+volatile int intr;
+
+void
+intcatch()
+{
+        intr = 1;
+}
+
+/*
+ * Reads a passphrase from /dev/tty with echo turned off.  Returns the
+ * passphrase (allocated with xmalloc), being very careful to ensure that
+ * no other userland buffer is storing the password.
+ */
+char *
+read_passphrase(const char *prompt, int from_stdin)
+{
+        char buf[1024], *p, ch;
+        struct termios tio, saved_tio;
+        sigset_t oset, nset;
+        struct sigaction sa, osa;
+        int input, output, echo = 0;
+
+        if (from_stdin) {
+                input = STDIN_FILENO;
+                output = STDERR_FILENO;
+        } else
+                input = output = open("/dev/tty", O_RDWR);
+
+        if (input == -1)
+                fatal("You have no controlling tty.  Cannot read passphrase.\n");
+
+        /* block signals, get terminal modes and turn off echo */
+        sigemptyset(&nset);
+        sigaddset(&nset, SIGTSTP);
+        (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+        memset(&sa, 0, sizeof(sa));
+        sa.sa_handler = intcatch;
+        (void) sigaction(SIGINT, &sa, &osa);
+
+        intr = 0;
+
+        if (tcgetattr(input, &saved_tio) == 0 && (saved_tio.c_lflag & ECHO)) {
+                echo = 1;
+                tio = saved_tio;
+                tio.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
+                (void) tcsetattr(input, TCSANOW, &tio);
+        }
+
+        fflush(stdout);
+
+        (void)write(output, prompt, strlen(prompt));
+        for (p = buf; read(input, &ch, 1) == 1 && ch != '\n';) {
+                if (intr)
+                        break;
+                if (p < buf + sizeof(buf) - 1)
+                        *p++ = ch;
+        }
+        *p = '\0';
+        if (!intr)
+                (void)write(output, "\n", 1);
+
+        /* restore terminal modes and allow signals */
+        if (echo)
+                tcsetattr(input, TCSANOW, &saved_tio);
+        (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+        (void) sigaction(SIGINT, &osa, NULL);
+
+        if (intr) {
+                kill(getpid(), SIGINT);
+                sigemptyset(&nset);
+                /* XXX tty has not neccessarily drained by now? */
+                sigsuspend(&nset);
+        }
+
+        if (!from_stdin)
+                (void)close(input);
+        p = xstrdup(buf);
+        memset(buf, 0, sizeof(buf));
+        return (p);
+}