freebsd-src/lib/libipx/ipx_ntoa.c
2007-01-09 01:02:06 +00:00

100 lines
2.9 KiB
C

/*
* Copyright (c) 1986, 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.
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)ipx_ntoa.c";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <arpa/inet.h>
#include <netipx/ipx.h>
#include <stdio.h>
static char *spectHex(char *);
char *
ipx_ntoa(addr)
struct ipx_addr addr;
{
static char obuf[40];
union { union ipx_net net_e; u_long long_e; } net;
u_short port = htons(addr.x_port);
char *cp;
char *cp2;
u_char *up = addr.x_host.c_host;
u_char *uplim = up + 6;
net.net_e = addr.x_net;
sprintf(obuf, "%lx", (u_long)ntohl(net.long_e));
cp = spectHex(obuf);
cp2 = cp + 1;
while (*up==0 && up < uplim) up++;
if (up == uplim) {
if (port) {
sprintf(cp, ".0");
cp += 2;
}
} else {
sprintf(cp, ".%x", *up++);
while (up < uplim) {
while (*cp) cp++;
sprintf(cp, "%02x", *up++);
}
cp = spectHex(cp2);
}
if (port) {
sprintf(cp, ".%x", port);
spectHex(cp + 1);
}
return (obuf);
}
static char *
spectHex(p0)
char *p0;
{
int ok = 0;
int nonzero = 0;
char *p = p0;
for (; *p; p++) switch (*p) {
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
ok = 1;
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
nonzero = 1;
}
if (nonzero && !ok) { *p++ = 'H'; *p = 0; }
return (p);
}