Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/crypto/external/bsd/openssh/dist/sshbuf-misc.c,v
rcsdiff: /ftp/cvs/cvsroot/src/crypto/external/bsd/openssh/dist/sshbuf-misc.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.8.12.1
retrieving revision 1.8.12.2
diff -u -p -r1.8.12.1 -r1.8.12.2
--- src/crypto/external/bsd/openssh/dist/sshbuf-misc.c	2017/04/18 18:41:46	1.8.12.1
+++ src/crypto/external/bsd/openssh/dist/sshbuf-misc.c	2017/08/15 05:27:53	1.8.12.2
@@ -0,0 +1,159 @@
+/*	$OpenBSD: sshbuf-misc.c,v 1.6 2016/05/02 08:49:03 djm Exp $	*/
+/*
+ * Copyright (c) 2011 Damien Miller
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "includes.h"
+__RCSID("$NetBSD: sshbuf-misc.c,v 1.8.12.2 2017/08/15 05:27:53 snj Exp $");
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <limits.h>
+#include <string.h>
+#include <resolv.h>
+#include <ctype.h>
+
+#include "ssherr.h"
+#define SSHBUF_INTERNAL
+#include "sshbuf.h"
+
+void
+sshbuf_dump_data(const void *s, size_t len, FILE *f)
+{
+	size_t i, j;
+	const u_char *p = (const u_char *)s;
+
+	for (i = 0; i < len; i += 16) {
+		fprintf(f, "%.4zu: ", i);
+		for (j = i; j < i + 16; j++) {
+			if (j < len)
+				fprintf(f, "%02x ", p[j]);
+			else
+				fprintf(f, "   ");
+		}
+		fprintf(f, " ");
+		for (j = i; j < i + 16; j++) {
+			if (j < len) {
+				if  (isascii(p[j]) && isprint(p[j]))
+					fprintf(f, "%c", p[j]);
+				else
+					fprintf(f, ".");
+			}
+		}
+		fprintf(f, "\n");
+	}
+}
+
+void
+sshbuf_dump(struct sshbuf *buf, FILE *f)
+{
+	fprintf(f, "buffer %p len = %zu\n", buf, sshbuf_len(buf));
+	sshbuf_dump_data(sshbuf_ptr(buf), sshbuf_len(buf), f);
+}
+
+char *
+sshbuf_dtob16(struct sshbuf *buf)
+{
+	size_t i, j, len = sshbuf_len(buf);
+	const u_char *p = sshbuf_ptr(buf);
+	char *ret;
+	const char hex[] = "0123456789abcdef";
+
+	if (len == 0)
+		return strdup("");
+	if (SIZE_MAX / 2 <= len || (ret = malloc(len * 2 + 1)) == NULL)
+		return NULL;
+	for (i = j = 0; i < len; i++) {
+		ret[j++] = hex[(p[i] >> 4) & 0xf];
+		ret[j++] = hex[p[i] & 0xf];
+	}
+	ret[j] = '\0';
+	return ret;
+}
+
+char *
+sshbuf_dtob64(struct sshbuf *buf)
+{
+	size_t len = sshbuf_len(buf), plen;
+	const u_char *p = sshbuf_ptr(buf);
+	char *ret;
+	int r;
+
+	if (len == 0)
+		return strdup("");
+	plen = ((len + 2) / 3) * 4 + 1;
+	if (SIZE_MAX / 2 <= len || (ret = malloc(plen)) == NULL)
+		return NULL;
+	if ((r = b64_ntop(p, len, ret, plen)) == -1) {
+		explicit_bzero(ret, plen);
+		free(ret);
+		return NULL;
+	}
+	return ret;
+}
+
+int
+sshbuf_b64tod(struct sshbuf *buf, const char *b64)
+{
+	size_t plen = strlen(b64);
+	int nlen, r;
+	u_char *p;
+
+	if (plen == 0)
+		return 0;
+	if ((p = malloc(plen)) == NULL)
+		return SSH_ERR_ALLOC_FAIL;
+	if ((nlen = b64_pton(b64, p, plen)) < 0) {
+		explicit_bzero(p, plen);
+		free(p);
+		return SSH_ERR_INVALID_FORMAT;
+	}
+	if ((r = sshbuf_put(buf, p, nlen)) < 0) {
+		explicit_bzero(p, plen);
+		free(p);
+		return r;
+	}
+	explicit_bzero(p, plen);
+	free(p);
+	return 0;
+}
+
+char *
+sshbuf_dup_string(struct sshbuf *buf)
+{
+	const u_char *p = NULL, *s = sshbuf_ptr(buf);
+	size_t l = sshbuf_len(buf);
+	char *r;
+
+	if (s == NULL || l > SIZE_MAX)
+		return NULL;
+	/* accept a nul only as the last character in the buffer */
+	if (l > 0 && (p = memchr(s, '\0', l)) != NULL) {
+		if (p != s + l - 1)
+			return NULL;
+		l--; /* the nul is put back below */
+	}
+	if ((r = malloc(l + 1)) == NULL)
+		return NULL;
+	if (l > 0)
+		memcpy(r, s, l);
+	r[l] = '\0';
+	return r;
+}
+