Vendor import of OpenSSH-portable 3.6.1p1.

1 files changed, 282 insertions, 0 deletions

diff --git a/crypto/openssh/progressmeter.c b/crypto/openssh/progressmeter.c
new file mode 100644
index 0000000..90eb97f
--- /dev/null
+++ b/crypto/openssh/progressmeter.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 1999 Theo de Raadt.  All rights reserved.
+ * Copyright (c) 1999 Aaron Campbell.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/*
+ * Parts from:
+ *
+ * Copyright (c) 1983, 1990, 1992, 1993, 1995
+ *	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: progressmeter.c,v 1.3 2003/03/17 10:38:38 markus Exp $");
+
+#ifdef HAVE_LIBGEN_H
+#include <libgen.h>
+#endif
+
+#include "atomicio.h"
+#include "progressmeter.h"
+
+/* Number of seconds before xfer considered "stalled". */
+#define STALLTIME	5
+/* alarm() interval for updating progress meter. */
+#define PROGRESSTIME	1
+
+/* Signal handler used for updating the progress meter. */
+static void update_progress_meter(int);
+
+/* Returns non-zero if we are the foreground process. */
+static int foregroundproc(void);
+
+/* Returns width of the terminal (for progress meter calculations). */
+static int get_tty_width(void);
+
+/* Visual statistics about files as they are transferred. */
+static void draw_progress_meter(void);
+
+/* Time a transfer started. */
+static struct timeval start;
+
+/* Number of bytes of current file transferred so far. */
+static volatile off_t *statbytes;
+
+/* Total size of current file. */
+static off_t totalbytes;
+
+/* Name of current file being transferred. */
+static char *curfile;
+
+/* Time of last update. */
+static struct timeval lastupdate;
+
+/* Size at the time of the last update. */
+static off_t lastsize;
+
+void
+start_progress_meter(char *file, off_t filesize, off_t *counter)
+{
+	if ((curfile = basename(file)) == NULL)
+		curfile = file;
+
+	totalbytes = filesize;
+	statbytes = counter;
+	(void) gettimeofday(&start, (struct timezone *) 0);
+	lastupdate = start;
+	lastsize = 0;
+
+	draw_progress_meter();
+	signal(SIGALRM, update_progress_meter);
+	alarm(PROGRESSTIME);
+}
+
+void
+stop_progress_meter()
+{
+	alarm(0);
+	draw_progress_meter();
+	if (foregroundproc() != 0)
+		atomicio(write, fileno(stdout), "\n", 1);
+}
+
+static void
+update_progress_meter(int ignore)
+{
+	int save_errno = errno;
+
+	draw_progress_meter();
+	signal(SIGALRM, update_progress_meter);
+	alarm(PROGRESSTIME);
+	errno = save_errno;
+}
+
+static int
+foregroundproc(void)
+{
+	static pid_t pgrp = -1;
+	int ctty_pgrp;
+
+	if (pgrp == -1)
+		pgrp = getpgrp();
+
+#ifdef HAVE_TCGETPGRP
+        return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
+	                ctty_pgrp == pgrp);
+#else
+	return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
+		 ctty_pgrp == pgrp));
+#endif
+}
+
+static void
+draw_progress_meter()
+{
+	static const char spaces[] = "                          "
+	    "                                                   "
+	    "                                                   "
+	    "                                                   "
+	    "                                                   "
+	    "                                                   ";
+	static const char prefixes[] = " KMGTP";
+	struct timeval now, td, wait;
+	off_t cursize, abbrevsize, bytespersec;
+	double elapsed;
+	int ratio, remaining, i, ai, bi, nspaces;
+	char buf[512];
+
+	if (foregroundproc() == 0)
+		return;
+
+	(void) gettimeofday(&now, (struct timezone *) 0);
+	cursize = *statbytes;
+	if (totalbytes != 0) {
+		ratio = 100.0 * cursize / totalbytes;
+		ratio = MAX(ratio, 0);
+		ratio = MIN(ratio, 100);
+	} else
+		ratio = 100;
+
+	abbrevsize = cursize;
+	for (ai = 0; abbrevsize >= 10000 && ai < sizeof(prefixes); ai++)
+		abbrevsize >>= 10;
+
+	timersub(&now, &lastupdate, &wait);
+	if (cursize > lastsize) {
+		lastupdate = now;
+		lastsize = cursize;
+		wait.tv_sec = 0;
+	}
+	timersub(&now, &start, &td);
+	elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
+
+	bytespersec = 0;
+	if (cursize > 0) {
+		bytespersec = cursize;
+		if (elapsed > 0.0)
+			bytespersec /= elapsed;
+	}
+	for (bi = 1; bytespersec >= 1024000 && bi < sizeof(prefixes); bi++)
+		bytespersec >>= 10;
+
+    	nspaces = MIN(get_tty_width() - 79, sizeof(spaces) - 1);
+
+#ifdef HAVE_LONG_LONG_INT
+	snprintf(buf, sizeof(buf),
+	    "\r%-45.45s%.*s%3d%% %4lld%c%c %3lld.%01d%cB/s",
+	    curfile,
+	    nspaces,
+	    spaces,
+	    ratio,
+	    (long long)abbrevsize,
+	    prefixes[ai],
+	    ai == 0 ? ' ' : 'B',
+	    (long long)(bytespersec / 1024),
+	    (int)((bytespersec % 1024) * 10 / 1024),
+	    prefixes[bi]
+	);
+#else
+		/* XXX: Handle integer overflow? */
+	snprintf(buf, sizeof(buf),
+	    "\r%-45.45s%.*s%3d%% %4lu%c%c %3lu.%01d%cB/s",
+	    curfile,
+	    nspaces,
+	    spaces,
+	    ratio,
+	    (u_long)abbrevsize,
+	    prefixes[ai],
+	    ai == 0 ? ' ' : 'B',
+	    (u_long)(bytespersec / 1024),
+	    (int)((bytespersec % 1024) * 10 / 1024),
+	    prefixes[bi]
+	);
+#endif
+
+	if (cursize <= 0 || elapsed <= 0.0 || cursize > totalbytes) {
+		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+		    "   --:-- ETA");
+	} else if (wait.tv_sec >= STALLTIME) {
+		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+		    " - stalled -");
+	} else {
+		if (cursize != totalbytes)
+			remaining = (int)(totalbytes / (cursize / elapsed) -
+			    elapsed);
+		else
+			remaining = elapsed;
+
+		i = remaining / 3600;
+		if (i)
+			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+			    "%2d:", i);
+		else
+			snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+			    "   ");
+		i = remaining % 3600;
+		snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+		    "%02d:%02d%s", i / 60, i % 60,
+		    (cursize != totalbytes) ? " ETA" : "    ");
+	}
+	atomicio(write, fileno(stdout), buf, strlen(buf));
+}
+
+static int
+get_tty_width(void)
+{
+	struct winsize winsize;
+
+	if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
+		return (winsize.ws_col ? winsize.ws_col : 80);
+	else
+		return (80);
+}