summaryrefslogtreecommitdiffstats
path: root/libc/inet
diff options
context:
space:
mode:
Diffstat (limited to 'libc/inet')
-rw-r--r--libc/inet/bindresvport.c72
-rw-r--r--libc/inet/inet_addr.c72
-rw-r--r--libc/inet/inet_aton.c157
-rw-r--r--libc/inet/inet_ntoa.c51
-rw-r--r--libc/inet/inet_ntop.c197
-rw-r--r--libc/inet/inet_pton.c212
6 files changed, 0 insertions, 761 deletions
diff --git a/libc/inet/bindresvport.c b/libc/inet/bindresvport.c
deleted file mode 100644
index 5d9ad2b..0000000
--- a/libc/inet/bindresvport.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <string.h>
-#include <unistd.h>
-
-#define START_PORT 600
-#define END_PORT IPPORT_RESERVED
-#define NUM_PORTS (END_PORT - START_PORT)
-
-int bindresvport(int sd, struct sockaddr_in *sin)
-{
- static short port;
- struct sockaddr_in sin0;
- int nn, ret;
-
- if (sin == NULL) {
- sin = &sin0;
- memset( sin, 0, sizeof *sin );
- sin->sin_family = AF_INET;
- } else if (sin->sin_family != AF_INET) {
- errno = EPFNOSUPPORT;
- return -1;
- }
-
- if (port == 0) {
- port = START_PORT + (getpid() % NUM_PORTS);
- }
-
- for (nn = NUM_PORTS; nn > 0; nn--, port++)
- {
- if (port == END_PORT)
- port = START_PORT;
-
- sin->sin_port = htons(port);
- do {
- ret = bind(sd, (struct sockaddr*)sin, sizeof(*sin));
- } while (ret < 0 && errno == EINTR);
-
- if (!ret)
- break;
- }
- return ret;
-}
diff --git a/libc/inet/inet_addr.c b/libc/inet/inet_addr.c
deleted file mode 100644
index 8e480a4..0000000
--- a/libc/inet/inet_addr.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/* $OpenBSD: inet_addr.c,v 1.9 2005/08/06 20:30:03 espie Exp $ */
-
-/*
- * ++Copyright++ 1983, 1990, 1993
- * -
- * Copyright (c) 1983, 1990, 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. 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.
- * -
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- * -
- * --Copyright--
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <ctype.h>
-
-/*
- * Ascii internet address interpretation routine.
- * The value returned is in network order.
- */
-in_addr_t
-inet_addr(const char *cp)
-{
- struct in_addr val;
-
- if (inet_aton(cp, &val))
- return (val.s_addr);
- return (INADDR_NONE);
-}
diff --git a/libc/inet/inet_aton.c b/libc/inet/inet_aton.c
deleted file mode 100644
index c456d07..0000000
--- a/libc/inet/inet_aton.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* $OpenBSD: inet_addr.c,v 1.9 2005/08/06 20:30:03 espie Exp $ */
-
-/*
- * ++Copyright++ 1983, 1990, 1993
- * -
- * Copyright (c) 1983, 1990, 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. 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.
- * -
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- * -
- * --Copyright--
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <ctype.h>
-
-/*
- * Check whether "cp" is a valid ascii representation
- * of an Internet address and convert to a binary address.
- * Returns 1 if the address is valid, 0 if not.
- * This replaces inet_addr, the return value from which
- * cannot distinguish between failure and a local broadcast address.
- */
-int
-inet_aton(const char *cp, struct in_addr *addr)
-{
- in_addr_t val;
- int base, n;
- char c;
- u_int parts[4];
- u_int *pp = parts;
-
- c = *cp;
- for (;;) {
- /*
- * Collect number up to ``.''.
- * Values are specified as for C:
- * 0x=hex, 0=octal, isdigit=decimal.
- */
- if (!isdigit(c))
- return (0);
- val = 0; base = 10;
- if (c == '0') {
- c = *++cp;
- if (c == 'x' || c == 'X')
- base = 16, c = *++cp;
- else
- base = 8;
- }
- for (;;) {
- if (isascii(c) && isdigit(c)) {
- val = (val * base) + (c - '0');
- c = *++cp;
- } else if (base == 16 && isascii(c) && isxdigit(c)) {
- val = (val << 4) |
- (c + 10 - (islower(c) ? 'a' : 'A'));
- c = *++cp;
- } else
- break;
- }
- if (c == '.') {
- /*
- * Internet format:
- * a.b.c.d
- * a.b.c (with c treated as 16 bits)
- * a.b (with b treated as 24 bits)
- */
- if (pp >= parts + 3)
- return (0);
- *pp++ = val;
- c = *++cp;
- } else
- break;
- }
- /*
- * Check for trailing characters.
- */
- if (c != '\0' && (!isascii(c) || !isspace(c)))
- return (0);
- /*
- * Concoct the address according to
- * the number of parts specified.
- */
- n = pp - parts + 1;
- switch (n) {
-
- case 0:
- return (0); /* initial nondigit */
-
- case 1: /* a -- 32 bits */
- break;
-
- case 2: /* a.b -- 8.24 bits */
- if ((val > 0xffffff) || (parts[0] > 0xff))
- return (0);
- val |= parts[0] << 24;
- break;
-
- case 3: /* a.b.c -- 8.8.16 bits */
- if ((val > 0xffff) || (parts[0] > 0xff) || (parts[1] > 0xff))
- return (0);
- val |= (parts[0] << 24) | (parts[1] << 16);
- break;
-
- case 4: /* a.b.c.d -- 8.8.8.8 bits */
- if ((val > 0xff) || (parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff))
- return (0);
- val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
- break;
- }
- if (addr)
- addr->s_addr = htonl(val);
- return (1);
-}
diff --git a/libc/inet/inet_ntoa.c b/libc/inet/inet_ntoa.c
deleted file mode 100644
index ff5d93d..0000000
--- a/libc/inet/inet_ntoa.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* $OpenBSD: inet_ntoa.c,v 1.6 2005/08/06 20:30:03 espie Exp $ */
-/*
- * 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. 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.
- */
-
-/*
- * Convert network-format internet address
- * to base 256 d.d.d.d representation.
- */
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <stdio.h>
-
-char *
-inet_ntoa(struct in_addr in)
-{
- static char b[18];
- char *p;
-
- p = (char *)&in;
-#define UC(b) (((int)b)&0xff)
- (void)snprintf(b, sizeof(b),
- "%u.%u.%u.%u", UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));
- return (b);
-}
diff --git a/libc/inet/inet_ntop.c b/libc/inet/inet_ntop.c
deleted file mode 100644
index 5748da3..0000000
--- a/libc/inet/inet_ntop.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/* $OpenBSD: inet_ntop.c,v 1.7 2005/08/06 20:30:03 espie Exp $ */
-
-/* Copyright (c) 1996 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 <sys/param.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
-
-/*
- * 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 const char *inet_ntop4(const u_char *src, char *dst, size_t size);
-static const char *inet_ntop6(const u_char *src, char *dst, size_t size);
-
-/* char *
- * inet_ntop(af, src, dst, size)
- * convert a network format address to presentation format.
- * return:
- * pointer to presentation format address (`dst'), or NULL (see errno).
- * author:
- * Paul Vixie, 1996.
- */
-const char *
-inet_ntop(int af, const void *src, char *dst, size_t size)
-{
- switch (af) {
- case AF_INET:
- return (inet_ntop4(src, dst, size));
- case AF_INET6:
- return (inet_ntop6(src, dst, size));
- default:
- errno = EAFNOSUPPORT;
- return (NULL);
- }
- /* NOTREACHED */
-}
-
-/* const char *
- * inet_ntop4(src, dst, size)
- * format an IPv4 address, more or less like inet_ntoa()
- * return:
- * `dst' (as a const)
- * notes:
- * (1) uses no statics
- * (2) takes a u_char* not an in_addr as input
- * author:
- * Paul Vixie, 1996.
- */
-static const char *
-inet_ntop4(const u_char *src, char *dst, size_t size)
-{
- static const char fmt[] = "%u.%u.%u.%u";
- char tmp[sizeof "255.255.255.255"];
- int l;
-
- l = snprintf(tmp, size, fmt, src[0], src[1], src[2], src[3]);
- if (l <= 0 || (size_t)l >= size) {
- errno = ENOSPC;
- return (NULL);
- }
- strlcpy(dst, tmp, size);
- return (dst);
-}
-
-/* const char *
- * inet_ntop6(src, dst, size)
- * convert IPv6 binary address into presentation (printable) format
- * author:
- * Paul Vixie, 1996.
- */
-static const char *
-inet_ntop6(const u_char *src, char *dst, size_t size)
-{
- /*
- * Note that int32_t and int16_t need only be "at least" large enough
- * to contain a value of the specified size. On some systems, like
- * Crays, there is no such thing as an integer variable with 16 bits.
- * Keep this in mind if you think this function should have been coded
- * to use pointer overlays. All the world's not a VAX.
- */
- char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
- char *tp, *ep;
- struct { int base, len; } best, cur;
- u_int words[IN6ADDRSZ / INT16SZ];
- int i;
- int advance;
-
- /*
- * Preprocess:
- * Copy the input (bytewise) array into a wordwise array.
- * Find the longest run of 0x00's in src[] for :: shorthanding.
- */
- memset(words, '\0', sizeof words);
- for (i = 0; i < IN6ADDRSZ; i++)
- words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
- best.base = -1;
- best.len = 0;
- cur.base = -1;
- cur.len = 0;
- for (i = 0; i < (IN6ADDRSZ / INT16SZ); i++) {
- if (words[i] == 0) {
- if (cur.base == -1)
- cur.base = i, cur.len = 1;
- else
- cur.len++;
- } else {
- if (cur.base != -1) {
- if (best.base == -1 || cur.len > best.len)
- best = cur;
- cur.base = -1;
- }
- }
- }
- if (cur.base != -1) {
- if (best.base == -1 || cur.len > best.len)
- best = cur;
- }
- if (best.base != -1 && best.len < 2)
- best.base = -1;
-
- /*
- * Format the result.
- */
- tp = tmp;
- ep = tmp + sizeof(tmp);
- for (i = 0; i < (IN6ADDRSZ / INT16SZ) && tp < ep; i++) {
- /* Are we inside the best run of 0x00's? */
- if (best.base != -1 && i >= best.base &&
- i < (best.base + best.len)) {
- if (i == best.base) {
- if (tp + 1 >= ep)
- return (NULL);
- *tp++ = ':';
- }
- continue;
- }
- /* Are we following an initial run of 0x00s or any real hex? */
- if (i != 0) {
- if (tp + 1 >= ep)
- return (NULL);
- *tp++ = ':';
- }
- /* Is this address an encapsulated IPv4? */
- if (i == 6 && best.base == 0 &&
- (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) {
- if (!inet_ntop4(src+12, tp, (size_t)(ep - tp)))
- return (NULL);
- tp += strlen(tp);
- break;
- }
- advance = snprintf(tp, ep - tp, "%x", words[i]);
- if (advance <= 0 || advance >= ep - tp)
- return (NULL);
- tp += advance;
- }
- /* Was it a trailing run of 0x00's? */
- if (best.base != -1 && (best.base + best.len) == (IN6ADDRSZ / INT16SZ)) {
- if (tp + 1 >= ep)
- return (NULL);
- *tp++ = ':';
- }
- if (tp + 1 >= ep)
- return (NULL);
- *tp++ = '\0';
-
- /*
- * Check for overflow, copy, and we're done.
- */
- if ((size_t)(tp - tmp) > size) {
- errno = ENOSPC;
- return (NULL);
- }
- strlcpy(dst, tmp, size);
- return (dst);
-}
diff --git a/libc/inet/inet_pton.c b/libc/inet/inet_pton.c
deleted file mode 100644
index 4caf981..0000000
--- a/libc/inet/inet_pton.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/* $OpenBSD: inet_pton.c,v 1.7 2006/12/30 23:37:37 itojun Exp $ */
-
-/* Copyright (c) 1996 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 <sys/param.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <string.h>
-#include <errno.h>
-
-/*
- * 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, u_char *dst);
-static int inet_pton6(const char *src, u_char *dst);
-
-/* 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 *src, void *dst)
-{
- switch (af) {
- case AF_INET:
- return (inet_pton4(src, dst));
- case AF_INET6:
- return (inet_pton6(src, dst));
- default:
- errno = EAFNOSUPPORT;
- return (-1);
- }
- /* NOTREACHED */
-}
-
-/* int
- * inet_pton4(src, dst)
- * like inet_aton() but without all the hexadecimal 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 *src, u_char *dst)
-{
- static const char digits[] = "0123456789";
- int saw_digit, octets, ch;
- u_char tmp[INADDRSZ], *tp;
-
- saw_digit = 0;
- octets = 0;
- *(tp = tmp) = 0;
- while ((ch = *src++) != '\0') {
- const char *pch;
-
- if ((pch = strchr(digits, ch)) != NULL) {
- u_int new = *tp * 10 + (pch - digits);
-
- if (new > 255)
- return (0);
- if (! saw_digit) {
- if (++octets > 4)
- return (0);
- saw_digit = 1;
- }
- *tp = new;
- } 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, INADDRSZ);
- return (1);
-}
-
-/* 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 *src, u_char *dst)
-{
- static const char xdigits_l[] = "0123456789abcdef",
- xdigits_u[] = "0123456789ABCDEF";
- u_char tmp[IN6ADDRSZ], *tp, *endp, *colonp;
- const char *xdigits, *curtok;
- int ch, saw_xdigit, count_xdigit;
- u_int val;
-
- memset((tp = tmp), '\0', IN6ADDRSZ);
- endp = tp + IN6ADDRSZ;
- colonp = NULL;
- /* Leading :: requires some special handling. */
- if (*src == ':')
- if (*++src != ':')
- return (0);
- curtok = src;
- saw_xdigit = count_xdigit = 0;
- val = 0;
- while ((ch = *src++) != '\0') {
- const char *pch;
-
- if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
- pch = strchr((xdigits = xdigits_u), ch);
- if (pch != NULL) {
- if (count_xdigit >= 4)
- return (0);
- val <<= 4;
- val |= (pch - xdigits);
- if (val > 0xffff)
- return (0);
- saw_xdigit = 1;
- count_xdigit++;
- continue;
- }
- if (ch == ':') {
- curtok = src;
- if (!saw_xdigit) {
- if (colonp)
- return (0);
- colonp = tp;
- continue;
- } else if (*src == '\0') {
- return (0);
- }
- if (tp + INT16SZ > endp)
- return (0);
- *tp++ = (u_char) (val >> 8) & 0xff;
- *tp++ = (u_char) val & 0xff;
- saw_xdigit = 0;
- count_xdigit = 0;
- val = 0;
- continue;
- }
- if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
- inet_pton4(curtok, tp) > 0) {
- tp += INADDRSZ;
- saw_xdigit = 0;
- count_xdigit = 0;
- break; /* '\0' was seen by inet_pton4(). */
- }
- return (0);
- }
- if (saw_xdigit) {
- if (tp + 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;
-
- 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, IN6ADDRSZ);
- return (1);
-}
generated by cgit v1.1 at 2025-11-27 11:30:04 +0000