Revision: 2565
http://tmux.svn.sourceforge.net/tmux/?rev=2565&view=rev
Author: nicm
Date: 2011-07-22 10:49:33 +0000 (Fri, 22 Jul 2011)
Log Message:
-----------
Compatibility for b64_ntop, missing from some alternative libc.
Modified Paths:
--------------
trunk/Makefile.am
trunk/compat.h
trunk/configure.ac
Added Paths:
-----------
trunk/compat/b64_ntop.c
Modified: trunk/Makefile.am
===================================================================
--- trunk/Makefile.am 2011-07-19 01:47:26 UTC (rev 2564)
+++ trunk/Makefile.am 2011-07-22 10:49:33 UTC (rev 2565)
@@ -226,6 +226,9 @@
if NO_STRTONUM
nodist_tmux_SOURCES += compat/strtonum.c
endif
+if NO_B64_NTOP
+nodist_tmux_SOURCES += compat/b64_ntop.c
+endif
# Update SF web site.
upload-index.html: update-index.html
Added: trunk/compat/b64_ntop.c
===================================================================
--- trunk/compat/b64_ntop.c (rev 0)
+++ trunk/compat/b64_ntop.c 2011-07-22 10:49:33 UTC (rev 2565)
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 1996, 1998 by Internet Software Consortium.
+ *
+ * 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM 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.
+ */
+
+/*
+ * Portions Copyright (c) 1995 by International Business Machines, Inc.
+ *
+ * International Business Machines, Inc. (hereinafter called IBM) grants
+ * permission under its copyrights to use, copy, modify, and distribute this
+ * Software with or without fee, provided that the above copyright notice and
+ * all paragraphs of this notice appear in all copies, and that the name of IBM
+ * not be used in connection with the marketing of any product incorporating
+ * the Software or modifications thereof, without specific, written prior
+ * permission.
+ *
+ * To the extent it has a right to do so, IBM grants an immunity from suit
+ * under its patents, if any, for the use, sale or manufacture of products to
+ * the extent that such products are used for performing Domain Name System
+ * dynamic updates in TCP/IP networks by means of the Software. No immunity is
+ * granted for any product per se or for any other function of any product.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
+ * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
+ * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define Assert(Cond) if (!(Cond)) abort()
+
+static const char Base64[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static const char Pad64 = '=';
+
+/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
+ The following encoding technique is taken from RFC 1521 by Borenstein
+ and Freed. It is reproduced here in a slightly edited form for
+ convenience.
+
+ A 65-character subset of US-ASCII is used, enabling 6 bits to be
+ represented per printable character. (The extra 65th character, "=",
+ is used to signify a special processing function.)
+
+ The encoding process represents 24-bit groups of input bits as output
+ strings of 4 encoded characters. Proceeding from left to right, a
+ 24-bit input group is formed by concatenating 3 8-bit input groups.
+ These 24 bits are then treated as 4 concatenated 6-bit groups, each
+ of which is translated into a single digit in the base64 alphabet.
+
+ Each 6-bit group is used as an index into an array of 64 printable
+ characters. The character referenced by the index is placed in the
+ output string.
+
+ Table 1: The Base64 Alphabet
+
+ Value Encoding Value Encoding Value Encoding Value Encoding
+ 0 A 17 R 34 i 51 z
+ 1 B 18 S 35 j 52 0
+ 2 C 19 T 36 k 53 1
+ 3 D 20 U 37 l 54 2
+ 4 E 21 V 38 m 55 3
+ 5 F 22 W 39 n 56 4
+ 6 G 23 X 40 o 57 5
+ 7 H 24 Y 41 p 58 6
+ 8 I 25 Z 42 q 59 7
+ 9 J 26 a 43 r 60 8
+ 10 K 27 b 44 s 61 9
+ 11 L 28 c 45 t 62 +
+ 12 M 29 d 46 u 63 /
+ 13 N 30 e 47 v
+ 14 O 31 f 48 w (pad) =
+ 15 P 32 g 49 x
+ 16 Q 33 h 50 y
+
+ Special processing is performed if fewer than 24 bits are available
+ at the end of the data being encoded. A full encoding quantum is
+ always completed at the end of a quantity. When fewer than 24 input
+ bits are available in an input group, zero bits are added (on the
+ right) to form an integral number of 6-bit groups. Padding at the
+ end of the data is performed using the '=' character.
+
+ Since all base64 input is an integral number of octets, only the
+ -------------------------------------------------
+ following cases can arise:
+
+ (1) the final quantum of encoding input is an integral
+ multiple of 24 bits; here, the final unit of encoded
+ output will be an integral multiple of 4 characters
+ with no "=" padding,
+ (2) the final quantum of encoding input is exactly 8 bits;
+ here, the final unit of encoded output will be two
+ characters followed by two "=" padding characters, or
+ (3) the final quantum of encoding input is exactly 16 bits;
+ here, the final unit of encoded output will be three
+ characters followed by one "=" padding character.
+ */
+
+int
+b64_ntop(uint8_t const *src, size_t srclength, char *target, size_t targsize) {
+ size_t datalength = 0;
+ uint8_t input[3];
+ uint8_t output[4];
+ size_t i;
+
+ while (2 < srclength) {
+ input[0] = *src++;
+ input[1] = *src++;
+ input[2] = *src++;
+ srclength -= 3;
+
+ output[0] = input[0] >> 2;
+ output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+ output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+ output[3] = input[2] & 0x3f;
+ Assert(output[0] < 64);
+ Assert(output[1] < 64);
+ Assert(output[2] < 64);
+ Assert(output[3] < 64);
+
+ if (datalength + 4 > targsize)
+ return (-1);
+ target[datalength++] = Base64[output[0]];
+ target[datalength++] = Base64[output[1]];
+ target[datalength++] = Base64[output[2]];
+ target[datalength++] = Base64[output[3]];
+ }
+
+ /* Now we worry about padding. */
+ if (0 != srclength) {
+ /* Get what's left. */
+ input[0] = input[1] = input[2] = '\0';
+ for (i = 0; i < srclength; i++)
+ input[i] = *src++;
+
+ output[0] = input[0] >> 2;
+ output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
+ output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
+ Assert(output[0] < 64);
+ Assert(output[1] < 64);
+ Assert(output[2] < 64);
+
+ if (datalength + 4 > targsize)
+ return (-1);
+ target[datalength++] = Base64[output[0]];
+ target[datalength++] = Base64[output[1]];
+ if (srclength == 1)
+ target[datalength++] = Pad64;
+ else
+ target[datalength++] = Base64[output[2]];
+ target[datalength++] = Pad64;
+ }
+ if (datalength >= targsize)
+ return (-1);
+ target[datalength] = '\0'; /* Returned value doesn't count \0. */
+ return (datalength);
+}
Property changes on: trunk/compat/b64_ntop.c
___________________________________________________________________
Added: svn:keywords
+ Id
Modified: trunk/compat.h
===================================================================
--- trunk/compat.h 2011-07-19 01:47:26 UTC (rev 2564)
+++ trunk/compat.h 2011-07-22 10:49:33 UTC (rev 2565)
@@ -196,6 +196,11 @@
int daemon(int, int);
#endif
+#ifndef HAVE_B64NTOP
+/* b64_ntop.c */
+int b64_ntop(const char *, size_t, char *, size_t);
+#endif
+
#ifndef HAVE_FORKPTY
/* forkpty.c */
#include <sys/ioctl.h>
Modified: trunk/configure.ac
===================================================================
--- trunk/configure.ac 2011-07-19 01:47:26 UTC (rev 2564)
+++ trunk/configure.ac 2011-07-22 10:49:33 UTC (rev 2565)
@@ -105,9 +105,14 @@
AC_SEARCH_LIBS(clock_gettime, rt)
# Look for libevent.
-AC_SEARCH_LIBS(event_init, [event event-1.4 event2], found_libevent=yes,
found_libevent=no)
+AC_SEARCH_LIBS(
+ event_init,
+ [event event-1.4 event2],
+ found_libevent=yes,
+ found_libevent=no
+)
if test "x$found_libevent" = xno; then
- AC_MSG_ERROR("libevent not found")
+ AC_MSG_ERROR("libevent not found")
fi
# Look for curses.
@@ -122,8 +127,14 @@
fi
# Look for networking libraries.
-AC_SEARCH_LIBS(b64_ntop, resolv)
-AC_SEARCH_LIBS(__b64_ntop, resolv)
+AC_SEARCH_LIBS(b64_ntop, resolv, found_b64_ntop=yes, found_b64_ntop=no)
+AC_SEARCH_LIBS(__b64_ntop, resolv, found___b64_ntop=yes, found___b64_ntop=no)
+if test "x$found_b64_ntop" = xyes -o "x$found___b64_ntop" = xyes; then
+ AC_DEFINE(HAVE_B64_NTOP)
+fi
+AM_CONDITIONAL(
+ NO_B64_NTOP,
+ [test "x$found_b64_ntop" = xno -a "x$found___b64_ntop" = xno])
AC_SEARCH_LIBS(inet_ntoa, nsl)
AC_SEARCH_LIBS(socket, socket)
AC_CHECK_LIB(xnet, socket)
This was sent by the SourceForge.net collaborative development platform, the
world's largest Open Source development site.
------------------------------------------------------------------------------
10 Tips for Better Web Security
Learn 10 ways to better secure your business today. Topics covered include:
Web security, SSL, hacker attacks & Denial of Service (DoS), private keys,
security Microsoft Exchange, secure Instant Messaging, and much more.
http://www.accelacomm.com/jaw/sfnl/114/51426210/
_______________________________________________
tmux-cvs mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/tmux-cvs
