diff options
Diffstat (limited to 'gl/inet_pton.c')
| -rw-r--r-- | gl/inet_pton.c | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/gl/inet_pton.c b/gl/inet_pton.c deleted file mode 100644 index d8a2dee0ff..0000000000 --- a/gl/inet_pton.c +++ /dev/null @@ -1,253 +0,0 @@ -/* inet_pton.c -- convert IPv4 and IPv6 addresses from text to binary form - - Copyright (C) 2006, 2008, 2009, 2010 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -/* - * Copyright (c) 1996,1999 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. - */ - -#include <config.h> - -/* Specification. */ -#include <arpa/inet.h> - -#include <c-ctype.h> -#include <string.h> -#include <errno.h> - -#define NS_INADDRSZ 4 -#define NS_IN6ADDRSZ 16 -#define NS_INT16SZ 2 - -/* - * WARNING: Don't even consider trying to compile this on a system where - * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. - */ - -static int inet_pton4 (const char *src, unsigned char *dst); -#if HAVE_IPV6 -static int inet_pton6 (const char *src, unsigned char *dst); -#endif - -/* int - * inet_pton(af, src, dst) - * convert from presentation format (which usually means ASCII printable) - * to network format (which is usually some kind of binary format). - * return: - * 1 if the address was valid for the specified address family - * 0 if the address wasn't valid (`dst' is untouched in this case) - * -1 if some other error occurred (`dst' is untouched in this case, too) - * author: - * Paul Vixie, 1996. - */ -int -inet_pton (int af, const char *restrict src, void *restrict dst) -{ - switch (af) - { - case AF_INET: - return (inet_pton4 (src, dst)); - -#if HAVE_IPV6 - case AF_INET6: - return (inet_pton6 (src, dst)); -#endif - - default: - errno = EAFNOSUPPORT; - return (-1); - } - /* NOTREACHED */ -} - -/* int - * inet_pton4(src, dst) - * like inet_aton() but without all the hexadecimal, octal (with the - * exception of 0) and shorthand. - * return: - * 1 if `src' is a valid dotted quad, else 0. - * notice: - * does not touch `dst' unless it's returning 1. - * author: - * Paul Vixie, 1996. - */ -static int -inet_pton4 (const char *restrict src, unsigned char *restrict dst) -{ - int saw_digit, octets, ch; - unsigned char tmp[NS_INADDRSZ], *tp; - - saw_digit = 0; - octets = 0; - *(tp = tmp) = 0; - while ((ch = *src++) != '\0') - { - - if (ch >= '0' && ch <= '9') - { - unsigned new = *tp * 10 + (ch - '0'); - - if (saw_digit && *tp == 0) - return (0); - if (new > 255) - return (0); - *tp = new; - if (!saw_digit) - { - if (++octets > 4) - return (0); - saw_digit = 1; - } - } - else if (ch == '.' && saw_digit) - { - if (octets == 4) - return (0); - *++tp = 0; - saw_digit = 0; - } - else - return (0); - } - if (octets < 4) - return (0); - memcpy (dst, tmp, NS_INADDRSZ); - return (1); -} - -#if HAVE_IPV6 - -/* int - * inet_pton6(src, dst) - * convert presentation level address to network order binary form. - * return: - * 1 if `src' is a valid [RFC1884 2.2] address, else 0. - * notice: - * (1) does not touch `dst' unless it's returning 1. - * (2) :: in a full address is silently ignored. - * credit: - * inspired by Mark Andrews. - * author: - * Paul Vixie, 1996. - */ -static int -inet_pton6 (const char *restrict src, unsigned char *restrict dst) -{ - static const char xdigits[] = "0123456789abcdef"; - unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp; - const char *curtok; - int ch, saw_xdigit; - unsigned val; - - tp = memset (tmp, '\0', NS_IN6ADDRSZ); - endp = tp + NS_IN6ADDRSZ; - colonp = NULL; - /* Leading :: requires some special handling. */ - if (*src == ':') - if (*++src != ':') - return (0); - curtok = src; - saw_xdigit = 0; - val = 0; - while ((ch = c_tolower (*src++)) != '\0') - { - const char *pch; - - pch = strchr (xdigits, ch); - if (pch != NULL) - { - val <<= 4; - val |= (pch - xdigits); - if (val > 0xffff) - return (0); - saw_xdigit = 1; - continue; - } - if (ch == ':') - { - curtok = src; - if (!saw_xdigit) - { - if (colonp) - return (0); - colonp = tp; - continue; - } - else if (*src == '\0') - { - return (0); - } - if (tp + NS_INT16SZ > endp) - return (0); - *tp++ = (u_char) (val >> 8) & 0xff; - *tp++ = (u_char) val & 0xff; - saw_xdigit = 0; - val = 0; - continue; - } - if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) && - inet_pton4 (curtok, tp) > 0) - { - tp += NS_INADDRSZ; - saw_xdigit = 0; - break; /* '\0' was seen by inet_pton4(). */ - } - return (0); - } - if (saw_xdigit) - { - if (tp + NS_INT16SZ > endp) - return (0); - *tp++ = (u_char) (val >> 8) & 0xff; - *tp++ = (u_char) val & 0xff; - } - if (colonp != NULL) - { - /* - * Since some memmove()'s erroneously fail to handle - * overlapping regions, we'll do the shift by hand. - */ - const int n = tp - colonp; - int i; - - if (tp == endp) - return (0); - for (i = 1; i <= n; i++) - { - endp[-i] = colonp[n - i]; - colonp[n - i] = 0; - } - tp = endp; - } - if (tp != endp) - return (0); - memcpy (dst, tmp, NS_IN6ADDRSZ); - return (1); -} -#endif |