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authd: initial pass at win32 porting

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This commit is contained in:
William Pitcock 2016-03-20 01:16:41 -05:00
parent b1f7e4098f
commit 76ebf6c489
8 changed files with 1319 additions and 3 deletions
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2
authd/Makefile.am
View file

@ -3,5 +3,5 @@ AM_CFLAGS=$(WARNFLAGS)
AM_CPPFLAGS = -I../include -I../librb/include
authd_SOURCES = authd.c res.c reslib.c dns.c
authd_SOURCES = authd.c res.c reslib.c reslist.c getnameinfo.c getaddrinfo.c dns.c
authd_LDADD = ../librb/src/librb.la

617
authd/getaddrinfo.c Normal file
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@ -0,0 +1,617 @@
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE 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:
* 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 project 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 PROJECT 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 PROJECT 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.
*/
#ifdef _WIN32
#include <ratbox_lib.h>
#include "getaddrinfo.h"
/* $Id$ */
static const char in_addrany[] = { 0, 0, 0, 0 };
static const char in_loopback[] = { 127, 0, 0, 1 };
static const char in6_addrany[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
static const char in6_loopback[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
};
static const struct afd {
int a_af;
int a_addrlen;
int a_socklen;
int a_off;
const char *a_addrany;
const char *a_loopback;
int a_scoped;
} afdl [] = {
#define N_INET6 0
#ifdef IPV6
{PF_INET6, sizeof(struct in6_addr),
sizeof(struct sockaddr_in6),
offsetof(struct sockaddr_in6, sin6_addr),
in6_addrany, in6_loopback, 1},
#endif
#define N_INET 1
{PF_INET, sizeof(struct in_addr),
sizeof(struct sockaddr_in),
offsetof(struct sockaddr_in, sin_addr),
in_addrany, in_loopback, 0},
{0, 0, 0, 0, NULL, NULL, 0},
};
struct explore {
int e_af;
int e_socktype;
int e_protocol;
const char *e_protostr;
int e_wild;
#define WILD_AF(ex) ((ex)->e_wild & 0x01)
#define WILD_SOCKTYPE(ex) ((ex)->e_wild & 0x02)
#define WILD_PROTOCOL(ex) ((ex)->e_wild & 0x04)
};
static const struct explore explore[] = {
#ifdef IPV6
{ PF_INET6, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
{ PF_INET6, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
{ PF_INET6, SOCK_RAW, ANY, NULL, 0x05 },
#endif
{ PF_INET, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
{ PF_INET, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
{ PF_INET, SOCK_RAW, ANY, NULL, 0x05 },
{ PF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
{ PF_UNSPEC, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
{ PF_UNSPEC, SOCK_RAW, ANY, NULL, 0x05 },
{ -1, 0, 0, NULL, 0 },
};
#define PTON_MAX 16
static int str_isnumber(const char *);
static int explore_null(const struct rb_addrinfo *,
const char *, struct rb_addrinfo **);
static int explore_numeric(const struct rb_addrinfo *, const char *,
const char *, struct rb_addrinfo **);
static struct rb_addrinfo *get_ai(const struct rb_addrinfo *,
const struct afd *, const char *);
static int get_portmatch(const struct rb_addrinfo *, const char *);
static int get_port(struct rb_addrinfo *, const char *, int);
static const struct afd *find_afd(int);
#if 0
/* We will need this should we ever want gai_strerror() */
static char *ai_errlist[] = {
"Success",
"Address family for hostname not supported", /* EAI_ADDRFAMILY */
"Temporary failure in name resolution", /* EAI_AGAIN */
"Invalid value for ai_flags", /* EAI_BADFLAGS */
"Non-recoverable failure in name resolution", /* EAI_FAIL */
"ai_family not supported", /* EAI_FAMILY */
"Memory allocation failure", /* EAI_MEMORY */
"No address associated with hostname", /* EAI_NODATA */
"hostname nor servname provided, or not known", /* EAI_NONAME */
"servname not supported for ai_socktype", /* EAI_SERVICE */
"ai_socktype not supported", /* EAI_SOCKTYPE */
"System error returned in errno", /* EAI_SYSTEM */
"Invalid value for hints", /* EAI_BADHINTS */
"Resolved protocol is unknown", /* EAI_PROTOCOL */
"Unknown error", /* EAI_MAX */
};
#endif
/* XXX macros that make external reference is BAD. */
#define GET_AI(ai, afd, addr) \
do { \
/* external reference: pai, error, and label free */ \
(ai) = get_ai(pai, (afd), (addr)); \
if ((ai) == NULL) { \
error = EAI_MEMORY; \
goto free; \
} \
} while (/*CONSTCOND*/0)
#define GET_PORT(ai, serv) \
do { \
/* external reference: error and label free */ \
error = get_port((ai), (serv), 0); \
if (error != 0) \
goto free; \
} while (/*CONSTCOND*/0)
#define ERR(err) \
do { \
/* external reference: error, and label bad */ \
error = (err); \
goto bad; \
/*NOTREACHED*/ \
} while (/*CONSTCOND*/0)
#define MATCH_FAMILY(x, y, w) \
((x) == (y) || (/*CONSTCOND*/(w) && ((x) == PF_UNSPEC || (y) == PF_UNSPEC)))
#define MATCH(x, y, w) \
((x) == (y) || (/*CONSTCOND*/(w) && ((x) == ANY || (y) == ANY)))
#if 0
/* We will need this should we ever want gai_strerror() */
char *
gai_strerror(int ecode)
{
if (ecode < 0 || ecode > EAI_MAX)
ecode = EAI_MAX;
return ai_errlist[ecode];
}
#endif
void
rb_freeaddrinfo(struct rb_addrinfo *ai)
{
struct rb_addrinfo *next;
do {
next = ai->ai_next;
if (ai->ai_canonname)
rb_free(ai->ai_canonname);
/* no need to free(ai->ai_addr) */
rb_free(ai);
ai = next;
} while (ai);
}
static int
str_isnumber(const char *p)
{
char *ep;
if (*p == '\0')
return NO;
ep = NULL;
errno = 0;
(void)strtoul(p, &ep, 10);
if (errno == 0 && ep && *ep == '\0')
return YES;
else
return NO;
}
int
rb_getaddrinfo(const char *hostname, const char *servname,
const struct rb_addrinfo *hints, struct rb_addrinfo **res)
{
struct rb_addrinfo sentinel;
struct rb_addrinfo *cur;
int error = 0;
struct rb_addrinfo ai;
struct rb_addrinfo ai0;
struct rb_addrinfo *pai;
const struct explore *ex;
memset(&sentinel, 0, sizeof(sentinel));
cur = &sentinel;
pai = &ai;
pai->ai_flags = 0;
pai->ai_family = PF_UNSPEC;
pai->ai_socktype = ANY;
pai->ai_protocol = ANY;
pai->ai_addrlen = 0;
pai->ai_canonname = NULL;
pai->ai_addr = NULL;
pai->ai_next = NULL;
if (hostname == NULL && servname == NULL)
return EAI_NONAME;
if (hints) {
/* error check for hints */
if (hints->ai_addrlen || hints->ai_canonname ||
hints->ai_addr || hints->ai_next)
ERR(EAI_BADHINTS); /* xxx */
if (hints->ai_flags & ~AI_MASK)
ERR(EAI_BADFLAGS);
switch (hints->ai_family) {
case PF_UNSPEC:
case PF_INET:
#ifdef IPV6
case PF_INET6:
#endif
break;
default:
ERR(EAI_FAMILY);
}
memcpy(pai, hints, sizeof(*pai));
/*
* if both socktype/protocol are specified, check if they
* are meaningful combination.
*/
if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) {
for (ex = explore; ex->e_af >= 0; ex++) {
if (pai->ai_family != ex->e_af)
continue;
if (ex->e_socktype == ANY)
continue;
if (ex->e_protocol == ANY)
continue;
if (pai->ai_socktype == ex->e_socktype &&
pai->ai_protocol != ex->e_protocol) {
ERR(EAI_BADHINTS);
}
}
}
}
/*
* check for special cases. (1) numeric servname is disallowed if
* socktype/protocol are left unspecified. (2) servname is disallowed
* for raw and other inet{,6} sockets.
*/
if (MATCH_FAMILY(pai->ai_family, PF_INET, 1)
#ifdef IPV6
|| MATCH_FAMILY(pai->ai_family, PF_INET6, 1)
#endif
) {
ai0 = *pai; /* backup *pai */
if (pai->ai_family == PF_UNSPEC) {
#ifdef IPV6
pai->ai_family = PF_INET6;
#else
pai->ai_family = PF_INET;
#endif
}
error = get_portmatch(pai, servname);
if (error)
ERR(error);
*pai = ai0;
}
ai0 = *pai;
/* NULL hostname, or numeric hostname */
for (ex = explore; ex->e_af >= 0; ex++) {
*pai = ai0;
/* PF_UNSPEC entries are prepared for DNS queries only */
if (ex->e_af == PF_UNSPEC)
continue;
if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
continue;
if (!MATCH(pai->ai_socktype, ex->e_socktype, WILD_SOCKTYPE(ex)))
continue;
if (!MATCH(pai->ai_protocol, ex->e_protocol, WILD_PROTOCOL(ex)))
continue;
if (pai->ai_family == PF_UNSPEC)
pai->ai_family = ex->e_af;
if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
pai->ai_socktype = ex->e_socktype;
if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
pai->ai_protocol = ex->e_protocol;
if (hostname == NULL)
error = explore_null(pai, servname, &cur->ai_next);
else
error = explore_numeric(pai, hostname, servname, &cur->ai_next);
if (error)
goto free;
while (cur && cur->ai_next)
cur = cur->ai_next;
}
/*
* XXX
* If numreic representation of AF1 can be interpreted as FQDN
* representation of AF2, we need to think again about the code below.
*/
if (sentinel.ai_next)
goto good;
if (pai->ai_flags & AI_NUMERICHOST)
ERR(EAI_NONAME);
if (hostname == NULL)
ERR(EAI_NODATA);
/* XXX */
if (sentinel.ai_next)
error = 0;
if (error)
goto free;
if (error == 0) {
if (sentinel.ai_next) {
good:
*res = sentinel.ai_next;
return SUCCESS;
} else
error = EAI_FAIL;
}
free:
bad:
if (sentinel.ai_next)
rb_freeaddrinfo(sentinel.ai_next);
*res = NULL;
return error;
}
/*
* hostname == NULL.
* passive socket -> anyaddr (0.0.0.0 or ::)
* non-passive socket -> localhost (127.0.0.1 or ::1)
*/
static int
explore_null(const struct rb_addrinfo *pai, const char *servname, struct rb_addrinfo **res)
{
int s;
const struct afd *afd;
struct rb_addrinfo *cur;
struct rb_addrinfo sentinel;
int error;
*res = NULL;
sentinel.ai_next = NULL;
cur = &sentinel;
/*
* filter out AFs that are not supported by the kernel
* XXX errno?
*/
s = socket(pai->ai_family, SOCK_DGRAM, 0);
if (s < 0) {
#ifdef _WIN32
errno = WSAGetLastError();
#endif
if (errno != EMFILE)
return 0;
} else
#ifdef _WIN32
closesocket(s);
#else
close(s);
#endif
/*
* if the servname does not match socktype/protocol, ignore it.
*/
if (get_portmatch(pai, servname) != 0)
return 0;
afd = find_afd(pai->ai_family);
if (afd == NULL)
return 0;
if (pai->ai_flags & AI_PASSIVE) {
GET_AI(cur->ai_next, afd, afd->a_addrany);
GET_PORT(cur->ai_next, servname);
} else {
GET_AI(cur->ai_next, afd, afd->a_loopback);
GET_PORT(cur->ai_next, servname);
}
cur = cur->ai_next;
*res = sentinel.ai_next;
return 0;
free:
if (sentinel.ai_next)
rb_freeaddrinfo(sentinel.ai_next);
return error;
}
/*
* numeric hostname
*/
static int
explore_numeric(const struct rb_addrinfo *pai, const char *hostname,
const char *servname, struct rb_addrinfo **res)
{
const struct afd *afd;
struct rb_addrinfo *cur;
struct rb_addrinfo sentinel;
int error;
char pton[PTON_MAX];
*res = NULL;
sentinel.ai_next = NULL;
cur = &sentinel;
/*
* if the servname does not match socktype/protocol, ignore it.
*/
if (get_portmatch(pai, servname) != 0)
return 0;
afd = find_afd(pai->ai_family);
if (afd == NULL)
return 0;
switch (afd->a_af) {
#if 0 /*X/Open spec*/
case AF_INET:
if (rb_inet_pton
if (inet_aton(hostname, (struct in_addr *)pton) == 1) {
if (pai->ai_family == afd->a_af ||
pai->ai_family == PF_UNSPEC /*?*/) {
GET_AI(cur->ai_next, afd, pton);
GET_PORT(cur->ai_next, servname);
while (cur && cur->ai_next)
cur = cur->ai_next;
} else
ERR(EAI_FAMILY); /*xxx*/
}
break;
#endif
default:
if (rb_inet_pton(afd->a_af, hostname, pton) == 1) {
if (pai->ai_family == afd->a_af ||
pai->ai_family == PF_UNSPEC /*?*/) {
GET_AI(cur->ai_next, afd, pton);
GET_PORT(cur->ai_next, servname);
while (cur && cur->ai_next)
cur = cur->ai_next;
} else
ERR(EAI_FAMILY); /* XXX */
}
break;
}
*res = sentinel.ai_next;
return 0;
free:
bad:
if (sentinel.ai_next)
rb_freeaddrinfo(sentinel.ai_next);
return error;
}
static struct rb_addrinfo *
get_ai(const struct rb_addrinfo *pai, const struct afd *afd, const char *addr)
{
char *p;
struct rb_addrinfo *ai;
ai = (struct rb_addrinfo *)rb_malloc(sizeof(struct rb_addrinfo)
+ (afd->a_socklen));
if (ai == NULL)
return NULL;
memcpy(ai, pai, sizeof(struct rb_addrinfo));
ai->ai_addr = (struct sockaddr *)(void *)(ai + 1);
memset(ai->ai_addr, 0, (size_t)afd->a_socklen);
ai->ai_addrlen = afd->a_socklen;
ai->ai_addr->sa_family = ai->ai_family = afd->a_af;
p = (char *)(void *)(ai->ai_addr);
memcpy(p + afd->a_off, addr, (size_t)afd->a_addrlen);
return ai;
}
static int
get_portmatch(const struct rb_addrinfo *ai, const char *servname)
{
struct rb_addrinfo xai;
memcpy(&xai, ai, sizeof(struct rb_addrinfo));
return(get_port(&xai, servname, 1));
}
static int
get_port(struct rb_addrinfo *ai, const char *servname, int matchonly)
{
const char *proto;
struct servent *sp;
int port;
int allownumeric;
if (servname == NULL)
return 0;
switch (ai->ai_family) {
case AF_INET:
#ifdef AF_INET6
case AF_INET6:
#endif
break;
default:
return 0;
}
switch (ai->ai_socktype) {
case SOCK_RAW:
return EAI_SERVICE;
case SOCK_DGRAM:
case SOCK_STREAM:
allownumeric = 1;
break;
case ANY:
allownumeric = 0;
break;
default:
return EAI_SOCKTYPE;
}
if (str_isnumber(servname)) {
if (!allownumeric)
return EAI_SERVICE;
port = atoi(servname);
if (port < 0 || port > 65535)
return EAI_SERVICE;
port = htons(port);
} else {
switch (ai->ai_socktype) {
case SOCK_DGRAM:
proto = "udp";
break;
case SOCK_STREAM:
proto = "tcp";
break;
default:
proto = NULL;
break;
}
if ((sp = getservbyname(servname, proto)) == NULL)
return EAI_SERVICE;
port = sp->s_port;
}
if (!matchonly) {
switch (ai->ai_family) {
case AF_INET:
((struct sockaddr_in *)(void *)
ai->ai_addr)->sin_port = port;
break;
#ifdef IPV6
case AF_INET6:
((struct sockaddr_in6 *)(void *)
ai->ai_addr)->sin6_port = port;
break;
#endif
}
}
return 0;
}
static const struct afd *
find_afd(int af)
{
const struct afd *afd;
if (af == PF_UNSPEC)
return(NULL);
for (afd = afdl; afd->a_af; afd++)
{
if (afd->a_af == af)
return(afd);
}
return(NULL);
}
#endif

130
authd/getaddrinfo.h Normal file
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@ -0,0 +1,130 @@
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE 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:
* 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 project 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 PROJECT 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 PROJECT 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.
*
* $Id$
*/
struct rb_addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
size_t ai_addrlen;
char *ai_canonname;
struct sockaddr *ai_addr;
struct rb_addrinfo *ai_next;
};
#ifndef AI_PASSIVE
#define AI_PASSIVE 0x00000001 /* get address to use bind() */
#endif /* AI_PASSIVE */
#ifndef AI_NUMERICHOST
#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */
#endif /* AI_NUMERICHOST */
#ifndef EAI_FAIL
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
#endif /* EAI_FAIL */
#ifndef EAI_FAMILY
#define EAI_FAMILY 5 /* ai_family not supported */
#endif /* EAI_FAMILY */
#ifndef EAI_MEMORY
#define EAI_MEMORY 6 /* memory allocation failure */
#endif /* EAI_MEMORY */
#ifndef EAI_NONAME
#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
#endif /* EAI_NONAME */
#ifndef EAI_SYSTEM
#define EAI_SYSTEM 11 /* system error returned in errno */
#endif /* EAI_SYSTEM */
#ifndef NI_NUMERICHOST
#define NI_NUMERICHOST 0x00000002
#endif /* NI_NUMERICHOST */
#ifndef NI_NAMEREQD
#define NI_NAMEREQD 0x00000004
#endif /* NI_NAMEREQD */
#ifndef NI_NUMERICSERV
#define NI_NUMERICSERV 0x00000008
#endif /* NI_NUMERICSERV */
#ifndef NI_DGRAM
#define NI_DGRAM 0x00000010
#endif /* NI_DGRAM */
#ifndef INADDR_NONE
#define INADDR_NONE ((unsigned int) 0xffffffff)
#endif /* INADDR_NONE */
int rb_getaddrinfo(const char *hostname, const char *servname,
const struct rb_addrinfo *hints, struct rb_addrinfo **res);
void rb_freeaddrinfo(struct rb_addrinfo *ai);
#define SUCCESS 0
#define ANY 0
#define YES 1
#define NO 0
#undef EAI_ADDRFAMILY
#undef EAI_AGAIN
#undef EAI_BADFLAGS
#undef EAI_FAIL
#undef EAI_FAMILY
#undef EAI_MEMORY
#undef EAI_NODATA
#undef EAI_NONAME
#undef EAI_SERVICE
#undef EAI_SOCKTYPE
#undef EAI_SYSTEM
#undef EAI_BADHINTS
#undef EAI_PROTOCOL
#undef EAI_MAX
#undef AI_MASK
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
#define EAI_AGAIN 2 /* temporary failure in name resolution */
#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
#define EAI_FAMILY 5 /* ai_family not supported */
#define EAI_MEMORY 6 /* memory allocation failure */
#define EAI_NODATA 7 /* no address associated with hostname */
#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
#define EAI_SYSTEM 11 /* system error returned in errno */
#define EAI_BADHINTS 12
#define EAI_PROTOCOL 13
#define EAI_MAX 14
#define AI_MASK (AI_PASSIVE | AI_NUMERICHOST)

242
authd/getnameinfo.c Normal file
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@ -0,0 +1,242 @@
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE 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:
* 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 project 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 PROJECT 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 PROJECT 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.
*/
/*
* Issues to be discussed:
* - Thread safe-ness must be checked
* - RFC2553 says that we should raise error on short buffer. X/Open says
* we need to truncate the result. We obey RFC2553 (and X/Open should be
* modified). ipngwg rough consensus seems to follow RFC2553.
* - What is "local" in NI_FQDN?
* - NI_NAMEREQD and NI_NUMERICHOST conflict with each other.
* - (KAME extension) always attach textual scopeid (fe80::1%lo0), if
* sin6_scope_id is filled - standardization status?
* XXX breaks backward compat for code that expects no scopeid.
* beware on merge.
*/
#ifdef _WIN32
#include <ratbox_lib.h>
#include "getaddrinfo.h"
#include "getnameinfo.h"
/* $Id$ */
static const struct afd {
int a_af;
int a_addrlen;
rb_socklen_t a_socklen;
int a_off;
} afdl [] = {
#ifdef IPV6
{PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6),
offsetof(struct sockaddr_in6, sin6_addr)},
#endif
{PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in),
offsetof(struct sockaddr_in, sin_addr)},
{0, 0, 0, 0},
};
struct sockinet
{
unsigned char si_len;
unsigned char si_family;
unsigned short si_port;
};
#ifdef IPV6
static int ip6_parsenumeric(const struct sockaddr *, const char *, char *,
size_t, int);
#endif
int
rb_getnameinfo(const struct sockaddr *sa, rb_socklen_t salen, char *host,
size_t hostlen, char *serv, size_t servlen, int flags)
{
const struct afd *afd;
struct servent *sp;
unsigned short port;
int family, i;
const char *addr;
uint32_t v4a;
char numserv[512];
char numaddr[512];
if (sa == NULL)
return EAI_FAIL;
/* if (sa->sa_len != salen)
return EAI_FAIL;
*/
family = sa->sa_family;
for (i = 0; afdl[i].a_af; i++)
if (afdl[i].a_af == family) {
afd = &afdl[i];
goto found;
}
return EAI_FAMILY;
found:
if (salen != afd->a_socklen)
return EAI_FAIL;
/* network byte order */
port = ((const struct sockinet *)sa)->si_port;
addr = (const char *)sa + afd->a_off;
if (serv == NULL || servlen == 0) {
/*
* do nothing in this case.
* in case you are wondering if "&&" is more correct than
* "||" here: rfc2553bis-03 says that serv == NULL OR
* servlen == 0 means that the caller does not want the result.
*/
} else {
if (flags & NI_NUMERICSERV)
sp = NULL;
else {
sp = getservbyport(port,
(flags & NI_DGRAM) ? "udp" : "tcp");
}
if (sp) {
if (strlen(sp->s_name) + 1 > servlen)
return EAI_MEMORY;
rb_strlcpy(serv, sp->s_name, servlen);
} else {
snprintf(numserv, sizeof(numserv), "%u", ntohs(port));
if (strlen(numserv) + 1 > servlen)
return EAI_MEMORY;
rb_strlcpy(serv, numserv, servlen);
}
}
switch (sa->sa_family) {
case AF_INET:
v4a = (uint32_t)
ntohl(((const struct sockaddr_in *)sa)->sin_addr.s_addr);
if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
flags |= NI_NUMERICHOST;
v4a >>= IN_CLASSA_NSHIFT;
if (v4a == 0)
flags |= NI_NUMERICHOST;
break;
#ifdef IPV6
case AF_INET6:
{
const struct sockaddr_in6 *sin6;
sin6 = (const struct sockaddr_in6 *)sa;
switch (sin6->sin6_addr.s6_addr[0]) {
case 0x00:
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
;
else if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr))
;
else
flags |= NI_NUMERICHOST;
break;
default:
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
flags |= NI_NUMERICHOST;
}
else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
flags |= NI_NUMERICHOST;
break;
}
}
break;
#endif
}
if (host == NULL || hostlen == 0) {
/*
* do nothing in this case.
* in case you are wondering if "&&" is more correct than
* "||" here: rfc2553bis-03 says that host == NULL or
* hostlen == 0 means that the caller does not want the result.
*/
} else if (flags & NI_NUMERICHOST) {
size_t numaddrlen;
/* NUMERICHOST and NAMEREQD conflicts with each other */
if (flags & NI_NAMEREQD)
return EAI_NONAME;
switch(afd->a_af) {
#ifdef IPV6
case AF_INET6:
{
int error;
if ((error = ip6_parsenumeric(sa, addr, host,
hostlen, flags)) != 0)
return(error);
break;
}
#endif
default:
if (rb_inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
== NULL)
return EAI_SYSTEM;
numaddrlen = strlen(numaddr);
if (numaddrlen + 1 > hostlen) /* don't forget terminator */
return EAI_MEMORY;
rb_strlcpy(host, numaddr, hostlen);
break;
}
}
return(0);
}
#ifdef IPV6
static int
ip6_parsenumeric(const struct sockaddr *sa, const char *addr,
char *host, size_t hostlen, int flags)
{
size_t numaddrlen;
char numaddr[512];
if (rb_inet_ntop(AF_INET6, addr, numaddr, sizeof(numaddr)) == NULL)
return(EAI_SYSTEM);
numaddrlen = strlen(numaddr);
if (numaddrlen + 1 > hostlen) /* don't forget terminator */
return(EAI_MEMORY);
if (*numaddr == ':')
{
*host = '0';
rb_strlcpy(host+1, numaddr, hostlen-1);
}
else
rb_strlcpy(host, numaddr, hostlen);
return(0);
}
#endif
#endif

41
authd/getnameinfo.h Normal file
View file

@ -0,0 +1,41 @@
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE 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:
* 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 project 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 PROJECT 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 PROJECT 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.
*
* $Id$
*/
int rb_getnameinfo(const struct sockaddr *sa, rb_socklen_t salen, char *host,
size_t hostlen, char *serv, size_t servlen, int flags);
#ifndef IN_MULTICAST
#define IN_MULTICAST(a) ((((long int) (a)) & 0xf0000000) == 0xe0000000)
#endif
#ifndef IN_EXPERIMENTAL
#define IN_EXPERIMENTAL(a) ((((long int) (a)) & 0xe0000000) == 0xe0000000)
#endif

12
authd/reslib.c
View file

@ -76,6 +76,18 @@
* - Dianora
*/
#ifndef _WIN32
#include <netdb.h>
#else
#include "getaddrinfo.h"
#include "getnameinfo.h"
#define getaddrinfo rb_getaddrinfo
#define getnameinfo rb_getnameinfo
#define freeaddrinfo rb_freeaddrinfo
extern const char * get_windows_nameservers(void);
#endif
#include "stdinc.h"
#include "ircd_defs.h"
#include "common.h"

276
authd/reslist.c Normal file
View file

@ -0,0 +1,276 @@
/*
* reslist.c - get nameservers from windows *
*
* ircd-ratbox related changes are as follows
*
* Copyright (C) 2008 Aaron Sethman <androsyn@ratbox.org>
* Copyright (C) 2008-2012 ircd-ratbox development team
*
* pretty much all of this was yanked from c-ares ares_init.c here is the original
* header from there --
*
* Id: ares_init.c,v 1.72 2008-05-15 00:00:19 yangtse Exp $
* Copyright 1998 by the Massachusetts Institute of Technology.
* Copyright (C) 2007-2008 by Daniel Stenberg
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
*
*/
#ifdef _WIN32
#include <ratbox_lib.h>
#include <windows.h>
#include <iphlpapi.h>
const char *get_windows_nameservers(void);
#define IS_NT() ((int)GetVersion() > 0)
#define WIN_NS_9X "System\\CurrentControlSet\\Services\\VxD\\MSTCP"
#define WIN_NS_NT_KEY "System\\CurrentControlSet\\Services\\Tcpip\\Parameters"
#define NAMESERVER "NameServer"
#define DHCPNAMESERVER "DhcpNameServer"
#define DATABASEPATH "DatabasePath"
#define WIN_PATH_HOSTS "\\hosts"
static int
get_iphlpapi_dns_info(char *ret_buf, size_t ret_size)
{
FIXED_INFO *fi = alloca(sizeof(*fi));
DWORD size = sizeof(*fi);
typedef DWORD(WINAPI * get_net_param_func) (FIXED_INFO *, DWORD *);
get_net_param_func xxGetNetworkParams; /* available only on Win-98/2000+ */
HMODULE handle;
IP_ADDR_STRING *ipAddr;
int i, count = 0;
int debug = 0;
size_t ip_size = sizeof("255.255.255.255,") - 1;
size_t left = ret_size;
char *ret = ret_buf;
HRESULT res;
if(!fi)
return (0);
handle = LoadLibrary("iphlpapi.dll");
if(!handle)
return (0);
xxGetNetworkParams = (get_net_param_func) GetProcAddress(handle, "GetNetworkParams");
if(!xxGetNetworkParams)
goto quit;
res = (*xxGetNetworkParams) (fi, &size);
if((res != ERROR_BUFFER_OVERFLOW) && (res != ERROR_SUCCESS))
goto quit;
fi = alloca(size);
if(!fi || (*xxGetNetworkParams) (fi, &size) != ERROR_SUCCESS)
goto quit;
if(debug)
{
printf("Host Name: %s\n", fi->HostName);
printf("Domain Name: %s\n", fi->DomainName);
printf("DNS Servers:\n" " %s (primary)\n", fi->DnsServerList.IpAddress.String);
}
if(strlen(fi->DnsServerList.IpAddress.String) > 0 &&
inet_addr(fi->DnsServerList.IpAddress.String) != INADDR_NONE && left > ip_size)
{
ret += sprintf(ret, "%s,", fi->DnsServerList.IpAddress.String);
left -= ret - ret_buf;
count++;
}
for(i = 0, ipAddr = fi->DnsServerList.Next; ipAddr && left > ip_size;
ipAddr = ipAddr->Next, i++)
{
if(inet_addr(ipAddr->IpAddress.String) != INADDR_NONE)
{
ret += sprintf(ret, "%s,", ipAddr->IpAddress.String);
left -= ret - ret_buf;
count++;
}
if(debug)
printf(" %s (secondary %d)\n", ipAddr->IpAddress.String, i + 1);
}
quit:
if(handle)
FreeLibrary(handle);
if(debug && left <= ip_size)
printf("Too many nameservers. Truncating to %d addressess", count);
if(ret > ret_buf)
ret[-1] = '\0';
return (count);
}
/*
* Warning: returns a dynamically allocated buffer, the user MUST
* use free() / rb_free() if the function returns 1
*/
static int
get_res_nt(HKEY hKey, const char *subkey, char **obuf)
{
/* Test for the size we need */
DWORD size = 0;
int result;
result = RegQueryValueEx(hKey, subkey, 0, NULL, NULL, &size);
if((result != ERROR_SUCCESS && result != ERROR_MORE_DATA) || !size)
return 0;
*obuf = rb_malloc(size + 1);
if(!*obuf)
return 0;
if(RegQueryValueEx(hKey, subkey, 0, NULL, (LPBYTE) * obuf, &size) != ERROR_SUCCESS)
{
rb_free(*obuf);
return 0;
}
if(size == 1)
{
rb_free(*obuf);
return 0;
}
return 1;
}
static int
get_res_interfaces_nt(HKEY hKey, const char *subkey, char **obuf)
{
char enumbuf[39]; /* GUIDs are 38 chars + 1 for NULL */
DWORD enum_size = 39;
int idx = 0;
HKEY hVal;
while(RegEnumKeyEx(hKey, idx++, enumbuf, &enum_size, 0,
NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS)
{
int rc;
enum_size = 39;
if(RegOpenKeyEx(hKey, enumbuf, 0, KEY_QUERY_VALUE, &hVal) != ERROR_SUCCESS)
continue;
rc = get_res_nt(hVal, subkey, obuf);
RegCloseKey(hVal);
if(rc)
return 1;
}
return 0;
}
const char *
get_windows_nameservers(void)
{
/*
NameServer info via IPHLPAPI (IP helper API):
GetNetworkParams() should be the trusted source for this.
Available in Win-98/2000 and later. If that fail, fall-back to
registry information.
NameServer Registry:
On Windows 9X, the DNS server can be found in:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\NameServer
On Windows NT/2000/XP/2003:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\NameServer
or
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer
or
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
NameServer
or
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
DhcpNameServer
*/
static char namelist[512];
HKEY mykey;
HKEY subkey;
DWORD data_type;
DWORD bytes;
DWORD result;
char *line = NULL;
memset(&namelist, 0, sizeof(namelist));
if(get_iphlpapi_dns_info(namelist, sizeof(namelist)) > 0)
{
return namelist;
}
if(IS_NT())
{
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0,
KEY_READ, &mykey) == ERROR_SUCCESS)
{
RegOpenKeyEx(mykey, "Interfaces", 0,
KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, &subkey);
if(get_res_nt(mykey, NAMESERVER, &line))
{
rb_strlcpy(namelist, line, sizeof(namelist));
return namelist;
}
else if(get_res_nt(mykey, DHCPNAMESERVER, &line))
{
rb_strlcpy(namelist, line, sizeof(namelist));
rb_free(line);
}
/* Try the interfaces */
else if(get_res_interfaces_nt(subkey, NAMESERVER, &line))
{
rb_strlcpy(namelist, line, sizeof(namelist));
rb_free(line);
}
else if(get_res_interfaces_nt(subkey, DHCPNAMESERVER, &line))
{
rb_strlcpy(namelist, line, sizeof(namelist));
rb_free(line);
}
RegCloseKey(subkey);
RegCloseKey(mykey);
}
}
else
{
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_9X, 0,
KEY_READ, &mykey) == ERROR_SUCCESS)
{
if((result = RegQueryValueEx(mykey, NAMESERVER, NULL, &data_type,
NULL, &bytes)) == ERROR_SUCCESS ||
result == ERROR_MORE_DATA)
{
if(bytes)
{
line = (char *)rb_malloc(bytes + 1);
if(RegQueryValueEx(mykey, NAMESERVER, NULL, &data_type,
(unsigned char *)line, &bytes) ==
ERROR_SUCCESS)
{
rb_strlcpy(namelist, line, sizeof(namelist));
}
free(line);
}
}
}
RegCloseKey(mykey);
}
if(strlen(namelist) > 0)
return namelist;
return NULL;
}
#endif

2
include/stdinc.h
View file

@ -92,7 +92,6 @@ typedef bool _Bool;
#include <stdio.h>
#include <time.h>
#include <fcntl.h>
#include <netdb.h>
#include <stdarg.h>
#include <signal.h>
#include <dirent.h>
@ -112,7 +111,6 @@ typedef bool _Bool;
#endif
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/wait.h>