NetBSD/external/bsd/tcpdump/dist/missing/strlcpy.c
christos 784088dff9 Tuesday October 25, 2016 mcr@sandelman.ca
Summary for 4.8.1 tcpdump release
	Fix "-x" for Apple PKTAP and PPI packets
        Use PRIx64 to print a 64-bit number in hex.
        Printer for HNCP (RFCs 7787 and 7788).
        dagid is always an IPv6 address, not an opaque 128-bit string, and other fixes to RPL printer.
        RSVP: Add bounds and length checks
        OSPF: Do more bounds checking
        Handle OpenSSL 1.1.x.
        Initial support for the REdis Serialization Protocol known as RESP.
        Add printing function for Generic Protocol Extension for VXLAN
            draft-ietf-nvo3-vxlan-gpe-01
        Network Service Header: draft-ietf-sfc-nsh-01
        Don't recompile the filter if the new file has the same DLT.
        Pass an adjusted struct pcap_pkthdr to the sub-printer.
        Add three test cases for already fixed CVEs
           CVE-2014-8767: OLSR
           CVE-2014-8768: Geonet
           CVE-2014-8769: AODV
        Don't do the DDP-over-UDP heuristic first: GitHub issue #499.
        Use the new debugging routines in libpcap.
        Harmonize TCP source or destination ports tests with UDP ones
        Introduce data types to use for integral values in packet structures.
        RSVP: Fix an infinite loop
        Support of Type 3 and Type 4 LISP packets.
        Don't require IPv6 library support in order to support IPv6 addresses.
        Many many changes to support libnetdissect usage.
        Add a test that makes unaligned accesses: GitHub issue #478.
        add a DNSSEC test case: GH #445 and GH #467.
        BGP: add decoding of ADD-PATH capability
        fixes to LLC header printing, and RFC948-style IP packets

Friday April 10, 2015 guy@alum.mit.edu
  Summary for 4.7.4 tcpdump release
	RPKI to Router Protocol: Fix Segmentation Faults and other problems
	RPKI to Router Protocol: print strings with fn_printn()
	wb: fix some bounds checks
2017-01-24 21:33:37 +00:00

71 lines
2.4 KiB
C

/* NetBSD: strlcpy.c,v 1.5 1999/09/20 04:39:47 lukem Exp */
/* from OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp */
/*
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <netdissect-stdinc.h>
#include <string.h>
#include "netdissect.h"
/*
* Copy src to string dst of size siz. At most siz-1 characters
* will be copied. Always NUL terminates (unless siz == 0).
* Returns strlen(src); if retval >= siz, truncation occurred.
*/
size_t
strlcpy(char *dst, const char *src, size_t siz)
{
register char *d = dst;
register const char *s = src;
register size_t n = siz;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}