Files
rtems/cpukit/libnetworking/libc/inet_network.c
Joel Sherrill bab5c5fac0 2010-03-12 Joel Sherrill <joel.sherrill@oarcorp.com>
* ftpd/ftpd.c, httpd/asp.c, httpd/ejparse.c, httpd/emfdb.c,
	httpd/misc.c, httpd/um.c, httpd/webs.c, httpd/websuemf.c,
	libfs/src/dosfs/msdos_dir.c, libfs/src/dosfs/msdos_format.c,
	libfs/src/dosfs/msdos_misc.c, libfs/src/nfsclient/src/nfs.c,
	libmisc/capture/capture-cli.c, libmisc/monitor/mon-network.c,
	libmisc/shell/hexdump-odsyntax.c, libmisc/shell/main_ifconfig.c,
	libmisc/shell/shell.c, libmisc/shell/shell_makeargs.c,
	libmisc/uuid/parse.c, libnetworking/libc/gethostbydns.c,
	libnetworking/libc/gethostbyht.c, libnetworking/libc/gethostnamadr.c,
	libnetworking/libc/getnetnamadr.c, libnetworking/libc/inet_addr.c,
	libnetworking/libc/inet_network.c, libnetworking/libc/res_debug.c,
	libnetworking/libc/res_init.c, libnetworking/libc/res_query.c,
	libnetworking/rtems/rtems_mii_ioctl.c,
	score/src/objectgetnameasstring.c: Readdress use of ctype methods per
	recommendation from D.J. Delorie on the newlib mailing list. We
	should pass an unsigned char into these methods.
2010-03-12 16:26:16 +00:00

93 lines
2.9 KiB
C

/*
* Copyright (c) 1983, 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.
* 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.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
/*
* Internet network address interpretation routine.
* The library routines call this routine to interpret
* network numbers.
*/
in_addr_t
inet_network(
const char *cp)
{
register u_long val, base, n, i;
register char c;
u_long parts[4], *pp = parts;
again:
val = 0; base = 10;
if (*cp == '0')
base = 8, cp++;
if (*cp == 'x' || *cp == 'X')
base = 16, cp++;
while ((c = *cp) != 0) {
if (isdigit((unsigned char)c)) {
val = (val * base) + (c - '0');
cp++;
continue;
}
if (base == 16 && isxdigit((unsigned char)c)) {
val = (val << 4) + (c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
cp++;
continue;
}
break;
}
if (*cp == '.') {
if (pp >= parts + 3)
return (INADDR_NONE);
*pp++ = val, cp++;
goto again;
}
if (*cp && !isspace((unsigned char)*cp))
return (INADDR_NONE);
*pp++ = val;
n = pp - parts;
for (val = 0, i = 0; i < n; i++) {
val <<= 8;
val |= parts[i] & 0xff;
}
return (val);
}