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wine/dlls/ws2_32/unixlib.c
Alex Henrie 6daef74f67 ws2_32: Fix memory leaks on error paths in unix_gethostby* (scan-build). 
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-02 18:43:10 +01:00

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/*
* Unix library functions
*
* Copyright (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
* Copyright (C) 2001 Stefan Leichter
* Copyright (C) 2004 Hans Leidekker
* Copyright (C) 2005 Marcus Meissner
* Copyright (C) 2006-2008 Kai Blin
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include <errno.h>
#include <pthread.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_TCP_H
# include <netinet/tcp.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
# define if_indextoname unix_if_indextoname
# define if_nametoindex unix_if_nametoindex
# include <net/if.h>
# undef if_indextoname
# undef if_nametoindex
#endif
#ifdef HAVE_IFADDRS_H
# include <ifaddrs.h>
#endif
#include <poll.h>
#ifdef HAVE_NETIPX_IPX_H
# include <netipx/ipx.h>
#elif defined(HAVE_LINUX_IPX_H)
# ifdef HAVE_ASM_TYPES_H
# include <asm/types.h>
# endif
# ifdef HAVE_LINUX_TYPES_H
# include <linux/types.h>
# endif
# include <linux/ipx.h>
#endif
#if defined(SOL_IPX) || defined(SO_DEFAULT_HEADERS)
# define HAS_IPX
#endif
#ifdef HAVE_LINUX_IRDA_H
# ifdef HAVE_LINUX_TYPES_H
# include <linux/types.h>
# endif
# include <linux/irda.h>
# define HAS_IRDA
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winerror.h"
#include "winternl.h"
#define USE_WS_PREFIX
#include "winsock2.h"
#include "ws2tcpip.h"
#include "wsipx.h"
#include "af_irda.h"
#include "wine/debug.h"
#include "ws2_32_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(winsock);
#ifndef HAVE_LINUX_GETHOSTBYNAME_R_6
static pthread_mutex_t host_mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
#define MAP(x) {WS_ ## x, x}
static const int addrinfo_flag_map[][2] =
{
MAP( AI_PASSIVE ),
MAP( AI_CANONNAME ),
MAP( AI_NUMERICHOST ),
#ifdef AI_NUMERICSERV
MAP( AI_NUMERICSERV ),
#endif
#ifdef AI_V4MAPPED
MAP( AI_V4MAPPED ),
#endif
MAP( AI_ALL ),
MAP( AI_ADDRCONFIG ),
};
static const int nameinfo_flag_map[][2] =
{
MAP( NI_DGRAM ),
MAP( NI_NAMEREQD ),
MAP( NI_NOFQDN ),
MAP( NI_NUMERICHOST ),
MAP( NI_NUMERICSERV ),
};
static const int family_map[][2] =
{
MAP( AF_UNSPEC ),
MAP( AF_INET ),
MAP( AF_INET6 ),
#ifdef AF_IPX
MAP( AF_IPX ),
#endif
#ifdef AF_IRDA
MAP( AF_IRDA ),
#endif
};
static const int socktype_map[][2] =
{
MAP( SOCK_STREAM ),
MAP( SOCK_DGRAM ),
MAP( SOCK_RAW ),
};
static const int ip_protocol_map[][2] =
{
MAP( IPPROTO_IP ),
MAP( IPPROTO_TCP ),
MAP( IPPROTO_UDP ),
MAP( IPPROTO_IPV6 ),
MAP( IPPROTO_ICMP ),
MAP( IPPROTO_IGMP ),
MAP( IPPROTO_RAW ),
{WS_IPPROTO_IPV4, IPPROTO_IPIP},
};
#undef MAP
static int addrinfo_flags_from_unix( int flags )
{
int ws_flags = 0;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(addrinfo_flag_map); ++i)
{
if (flags & addrinfo_flag_map[i][1])
{
ws_flags |= addrinfo_flag_map[i][0];
flags &= ~addrinfo_flag_map[i][1];
}
}
if (flags)
FIXME( "unhandled flags %#x\n", flags );
return ws_flags;
}
static int addrinfo_flags_to_unix( int flags )
{
int unix_flags = 0;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(addrinfo_flag_map); ++i)
{
if (flags & addrinfo_flag_map[i][0])
{
unix_flags |= addrinfo_flag_map[i][1];
flags &= ~addrinfo_flag_map[i][0];
}
}
if (flags)
FIXME( "unhandled flags %#x\n", flags );
return unix_flags;
}
static int nameinfo_flags_to_unix( int flags )
{
int unix_flags = 0;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(nameinfo_flag_map); ++i)
{
if (flags & nameinfo_flag_map[i][0])
{
unix_flags |= nameinfo_flag_map[i][1];
flags &= ~nameinfo_flag_map[i][0];
}
}
if (flags)
FIXME( "unhandled flags %#x\n", flags );
return unix_flags;
}
static int family_from_unix( int family )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(family_map); ++i)
{
if (family == family_map[i][1])
return family_map[i][0];
}
FIXME( "unhandled family %u\n", family );
return -1;
}
static int family_to_unix( int family )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(family_map); ++i)
{
if (family == family_map[i][0])
return family_map[i][1];
}
FIXME( "unhandled family %u\n", family );
return -1;
}
static int socktype_from_unix( int type )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(socktype_map); ++i)
{
if (type == socktype_map[i][1])
return socktype_map[i][0];
}
FIXME( "unhandled type %u\n", type );
return -1;
}
static int socktype_to_unix( int type )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(socktype_map); ++i)
{
if (type == socktype_map[i][0])
return socktype_map[i][1];
}
FIXME( "unhandled type %u\n", type );
return -1;
}
static int protocol_from_unix( int protocol )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ip_protocol_map); ++i)
{
if (protocol == ip_protocol_map[i][1])
return ip_protocol_map[i][0];
}
if (protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
return protocol;
FIXME( "unhandled protocol %u\n", protocol );
return -1;
}
static int protocol_to_unix( int protocol )
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ip_protocol_map); ++i)
{
if (protocol == ip_protocol_map[i][0])
return ip_protocol_map[i][1];
}
if (protocol >= WS_NSPROTO_IPX && protocol <= WS_NSPROTO_IPX + 255)
return protocol;
FIXME( "unhandled protocol %u\n", protocol );
return -1;
}
static unsigned int errno_from_unix( int err )
{
switch (err)
{
case EINTR: return WSAEINTR;
case EBADF: return WSAEBADF;
case EPERM:
case EACCES: return WSAEACCES;
case EFAULT: return WSAEFAULT;
case EINVAL: return WSAEINVAL;
case EMFILE: return WSAEMFILE;
case EINPROGRESS:
case EWOULDBLOCK: return WSAEWOULDBLOCK;
case EALREADY: return WSAEALREADY;
case ENOTSOCK: return WSAENOTSOCK;
case EDESTADDRREQ: return WSAEDESTADDRREQ;
case EMSGSIZE: return WSAEMSGSIZE;
case EPROTOTYPE: return WSAEPROTOTYPE;
case ENOPROTOOPT: return WSAENOPROTOOPT;
case EPROTONOSUPPORT: return WSAEPROTONOSUPPORT;
case ESOCKTNOSUPPORT: return WSAESOCKTNOSUPPORT;
case EOPNOTSUPP: return WSAEOPNOTSUPP;
case EPFNOSUPPORT: return WSAEPFNOSUPPORT;
case EAFNOSUPPORT: return WSAEAFNOSUPPORT;
case EADDRINUSE: return WSAEADDRINUSE;
case EADDRNOTAVAIL: return WSAEADDRNOTAVAIL;
case ENETDOWN: return WSAENETDOWN;
case ENETUNREACH: return WSAENETUNREACH;
case ENETRESET: return WSAENETRESET;
case ECONNABORTED: return WSAECONNABORTED;
case EPIPE:
case ECONNRESET: return WSAECONNRESET;
case ENOBUFS: return WSAENOBUFS;
case EISCONN: return WSAEISCONN;
case ENOTCONN: return WSAENOTCONN;
case ESHUTDOWN: return WSAESHUTDOWN;
case ETOOMANYREFS: return WSAETOOMANYREFS;
case ETIMEDOUT: return WSAETIMEDOUT;
case ECONNREFUSED: return WSAECONNREFUSED;
case ELOOP: return WSAELOOP;
case ENAMETOOLONG: return WSAENAMETOOLONG;
case EHOSTDOWN: return WSAEHOSTDOWN;
case EHOSTUNREACH: return WSAEHOSTUNREACH;
case ENOTEMPTY: return WSAENOTEMPTY;
#ifdef EPROCLIM
case EPROCLIM: return WSAEPROCLIM;
#endif
#ifdef EUSERS
case EUSERS: return WSAEUSERS;
#endif
#ifdef EDQUOT
case EDQUOT: return WSAEDQUOT;
#endif
#ifdef ESTALE
case ESTALE: return WSAESTALE;
#endif
#ifdef EREMOTE
case EREMOTE: return WSAEREMOTE;
#endif
default:
FIXME( "unknown error: %s\n", strerror( err ) );
return WSAEFAULT;
}
}
static UINT host_errno_from_unix( int err )
{
WARN( "%d\n", err );
switch (err)
{
case HOST_NOT_FOUND: return WSAHOST_NOT_FOUND;
case TRY_AGAIN: return WSATRY_AGAIN;
case NO_RECOVERY: return WSANO_RECOVERY;
case NO_DATA: return WSANO_DATA;
case ENOBUFS: return WSAENOBUFS;
case 0: return 0;
default:
WARN( "Unknown h_errno %d!\n", err );
return WSAEOPNOTSUPP;
}
}
static int addrinfo_err_from_unix( int err )
{
switch (err)
{
case 0: return 0;
case EAI_AGAIN: return WS_EAI_AGAIN;
case EAI_BADFLAGS: return WS_EAI_BADFLAGS;
case EAI_FAIL: return WS_EAI_FAIL;
case EAI_FAMILY: return WS_EAI_FAMILY;
case EAI_MEMORY: return WS_EAI_MEMORY;
/* EAI_NODATA is deprecated, but still used by Windows and Linux. We map
* the newer EAI_NONAME to EAI_NODATA for now until Windows changes too. */
#ifdef EAI_NODATA
case EAI_NODATA: return WS_EAI_NODATA;
#endif
#ifdef EAI_NONAME
case EAI_NONAME: return WS_EAI_NODATA;
#endif
case EAI_SERVICE: return WS_EAI_SERVICE;
case EAI_SOCKTYPE: return WS_EAI_SOCKTYPE;
case EAI_SYSTEM:
/* some broken versions of glibc return EAI_SYSTEM and set errno to
* 0 instead of returning EAI_NONAME */
return errno ? errno_from_unix( errno ) : WS_EAI_NONAME;
default:
FIXME( "unhandled error %d\n", err );
return err;
}
}
union unix_sockaddr
{
struct sockaddr addr;
struct sockaddr_in in;
struct sockaddr_in6 in6;
#ifdef HAS_IPX
struct sockaddr_ipx ipx;
#endif
#ifdef HAS_IRDA
struct sockaddr_irda irda;
#endif
};
/* different from the version in ntdll and server; it does not return failure if
* given a short buffer */
static int sockaddr_from_unix( const union unix_sockaddr *uaddr, struct WS_sockaddr *wsaddr, socklen_t wsaddrlen )
{
memset( wsaddr, 0, wsaddrlen );
switch (uaddr->addr.sa_family)
{
case AF_INET:
{
struct WS_sockaddr_in win = {0};
if (wsaddrlen >= sizeof(win))
{
win.sin_family = WS_AF_INET;
win.sin_port = uaddr->in.sin_port;
memcpy( &win.sin_addr, &uaddr->in.sin_addr, sizeof(win.sin_addr) );
memcpy( wsaddr, &win, sizeof(win) );
}
return sizeof(win);
}
case AF_INET6:
{
struct WS_sockaddr_in6 win = {0};
if (wsaddrlen >= sizeof(win))
{
win.sin6_family = WS_AF_INET6;
win.sin6_port = uaddr->in6.sin6_port;
win.sin6_flowinfo = uaddr->in6.sin6_flowinfo;
memcpy( &win.sin6_addr, &uaddr->in6.sin6_addr, sizeof(win.sin6_addr) );
#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
win.sin6_scope_id = uaddr->in6.sin6_scope_id;
#endif
memcpy( wsaddr, &win, sizeof(win) );
}
return sizeof(win);
}
#ifdef HAS_IPX
case AF_IPX:
{
struct WS_sockaddr_ipx win = {0};
if (wsaddrlen >= sizeof(win))
{
win.sa_family = WS_AF_IPX;
memcpy( win.sa_netnum, &uaddr->ipx.sipx_network, sizeof(win.sa_netnum) );
memcpy( win.sa_nodenum, &uaddr->ipx.sipx_node, sizeof(win.sa_nodenum) );
win.sa_socket = uaddr->ipx.sipx_port;
memcpy( wsaddr, &win, sizeof(win) );
}
return sizeof(win);
}
#endif
#ifdef HAS_IRDA
case AF_IRDA:
{
SOCKADDR_IRDA win;
if (wsaddrlen >= sizeof(win))
{
win.irdaAddressFamily = WS_AF_IRDA;
memcpy( win.irdaDeviceID, &uaddr->irda.sir_addr, sizeof(win.irdaDeviceID) );
if (uaddr->irda.sir_lsap_sel != LSAP_ANY)
snprintf( win.irdaServiceName, sizeof(win.irdaServiceName), "LSAP-SEL%u", uaddr->irda.sir_lsap_sel );
else
memcpy( win.irdaServiceName, uaddr->irda.sir_name, sizeof(win.irdaServiceName) );
memcpy( wsaddr, &win, sizeof(win) );
}
return sizeof(win);
}
#endif
case AF_UNSPEC:
return 0;
default:
FIXME( "unknown address family %d\n", uaddr->addr.sa_family );
return 0;
}
}
static socklen_t sockaddr_to_unix( const struct WS_sockaddr *wsaddr, int wsaddrlen, union unix_sockaddr *uaddr )
{
memset( uaddr, 0, sizeof(*uaddr) );
switch (wsaddr->sa_family)
{
case WS_AF_INET:
{
struct WS_sockaddr_in win = {0};
if (wsaddrlen < sizeof(win)) return 0;
memcpy( &win, wsaddr, sizeof(win) );
uaddr->in.sin_family = AF_INET;
uaddr->in.sin_port = win.sin_port;
memcpy( &uaddr->in.sin_addr, &win.sin_addr, sizeof(win.sin_addr) );
return sizeof(uaddr->in);
}
case WS_AF_INET6:
{
struct WS_sockaddr_in6 win = {0};
if (wsaddrlen < sizeof(win)) return 0;
memcpy( &win, wsaddr, sizeof(win) );
uaddr->in6.sin6_family = AF_INET6;
uaddr->in6.sin6_port = win.sin6_port;
uaddr->in6.sin6_flowinfo = win.sin6_flowinfo;
memcpy( &uaddr->in6.sin6_addr, &win.sin6_addr, sizeof(win.sin6_addr) );
#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
uaddr->in6.sin6_scope_id = win.sin6_scope_id;
#endif
return sizeof(uaddr->in6);
}
#ifdef HAS_IPX
case WS_AF_IPX:
{
struct WS_sockaddr_ipx win = {0};
if (wsaddrlen < sizeof(win)) return 0;
memcpy( &win, wsaddr, sizeof(win) );
uaddr->ipx.sipx_family = AF_IPX;
memcpy( &uaddr->ipx.sipx_network, win.sa_netnum, sizeof(win.sa_netnum) );
memcpy( &uaddr->ipx.sipx_node, win.sa_nodenum, sizeof(win.sa_nodenum) );
uaddr->ipx.sipx_port = win.sa_socket;
return sizeof(uaddr->ipx);
}
#endif
#ifdef HAS_IRDA
case WS_AF_IRDA:
{
SOCKADDR_IRDA win = {0};
unsigned int lsap_sel;
if (wsaddrlen < sizeof(win)) return 0;
memcpy( &win, wsaddr, sizeof(win) );
uaddr->irda.sir_family = AF_IRDA;
if (sscanf( win.irdaServiceName, "LSAP-SEL%u", &lsap_sel ) == 1)
uaddr->irda.sir_lsap_sel = lsap_sel;
else
{
uaddr->irda.sir_lsap_sel = LSAP_ANY;
memcpy( uaddr->irda.sir_name, win.irdaServiceName, sizeof(win.irdaServiceName) );
}
memcpy( &uaddr->irda.sir_addr, win.irdaDeviceID, sizeof(win.irdaDeviceID) );
return sizeof(uaddr->irda);
}
#endif
case WS_AF_UNSPEC:
switch (wsaddrlen)
{
default: /* likely an ipv4 address */
case sizeof(struct WS_sockaddr_in):
return sizeof(uaddr->in);
#ifdef HAS_IPX
case sizeof(struct WS_sockaddr_ipx):
return sizeof(uaddr->ipx);
#endif
#ifdef HAS_IRDA
case sizeof(SOCKADDR_IRDA):
return sizeof(uaddr->irda);
#endif
case sizeof(struct WS_sockaddr_in6):
return sizeof(uaddr->in6);
}
default:
FIXME( "unknown address family %u\n", wsaddr->sa_family );
return 0;
}
}
static BOOL addrinfo_in_list( const struct WS_addrinfo *list, const struct WS_addrinfo *ai )
{
const struct WS_addrinfo *cursor = list;
while (cursor)
{
if (ai->ai_flags == cursor->ai_flags &&
ai->ai_family == cursor->ai_family &&
ai->ai_socktype == cursor->ai_socktype &&
ai->ai_protocol == cursor->ai_protocol &&
ai->ai_addrlen == cursor->ai_addrlen &&
!memcmp( ai->ai_addr, cursor->ai_addr, ai->ai_addrlen ) &&
((ai->ai_canonname && cursor->ai_canonname && !strcmp( ai->ai_canonname, cursor->ai_canonname ))
|| (!ai->ai_canonname && !cursor->ai_canonname)))
{
return TRUE;
}
cursor = cursor->ai_next;
}
return FALSE;
}
static NTSTATUS unix_getaddrinfo( void *args )
{
#ifdef HAVE_GETADDRINFO
struct getaddrinfo_params *params = args;
const char *service = params->service;
const struct WS_addrinfo *hints = params->hints;
struct addrinfo unix_hints = {0};
struct addrinfo *unix_info, *src;
struct WS_addrinfo *dst, *prev = NULL;
unsigned int needed_size = 0;
int ret;
/* servname tweak required by OSX and BSD kernels */
if (service && !service[0]) service = "0";
if (hints)
{
unix_hints.ai_flags = addrinfo_flags_to_unix( hints->ai_flags );
if (hints->ai_family)
unix_hints.ai_family = family_to_unix( hints->ai_family );
if (hints->ai_socktype)
{
if ((unix_hints.ai_socktype = socktype_to_unix( hints->ai_socktype )) < 0)
return WSAESOCKTNOSUPPORT;
}
if (hints->ai_protocol)
unix_hints.ai_protocol = max( protocol_to_unix( hints->ai_protocol ), 0 );
/* Windows allows some invalid combinations */
if (unix_hints.ai_protocol == IPPROTO_TCP
&& unix_hints.ai_socktype != SOCK_STREAM
&& unix_hints.ai_socktype != SOCK_SEQPACKET)
{
WARN( "ignoring invalid type %u for TCP\n", unix_hints.ai_socktype );
unix_hints.ai_socktype = 0;
}
else if (unix_hints.ai_protocol == IPPROTO_UDP && unix_hints.ai_socktype != SOCK_DGRAM)
{
WARN( "ignoring invalid type %u for UDP\n", unix_hints.ai_socktype );
unix_hints.ai_socktype = 0;
}
else if (unix_hints.ai_protocol >= WS_NSPROTO_IPX && unix_hints.ai_protocol <= WS_NSPROTO_IPX + 255
&& unix_hints.ai_socktype != SOCK_DGRAM)
{
WARN( "ignoring invalid type %u for IPX\n", unix_hints.ai_socktype );
unix_hints.ai_socktype = 0;
}
else if (unix_hints.ai_protocol == IPPROTO_IPV6)
{
WARN( "ignoring protocol IPv6\n" );
unix_hints.ai_protocol = 0;
}
}
ret = getaddrinfo( params->node, service, hints ? &unix_hints : NULL, &unix_info );
if (ret)
return addrinfo_err_from_unix( ret );
for (src = unix_info; src != NULL; src = src->ai_next)
{
needed_size += sizeof(struct WS_addrinfo);
if (src->ai_canonname)
needed_size += strlen( src->ai_canonname ) + 1;
needed_size += sockaddr_from_unix( (const union unix_sockaddr *)src->ai_addr, NULL, 0 );
}
if (*params->size < needed_size)
{
*params->size = needed_size;
freeaddrinfo( unix_info );
return ERROR_INSUFFICIENT_BUFFER;
}
dst = params->info;
memset( params->info, 0, needed_size );
for (src = unix_info; src != NULL; src = src->ai_next)
{
void *next = dst + 1;
dst->ai_flags = addrinfo_flags_from_unix( src->ai_flags );
dst->ai_family = family_from_unix( src->ai_family );
if (hints)
{
dst->ai_socktype = hints->ai_socktype;
dst->ai_protocol = hints->ai_protocol;
}
else
{
dst->ai_socktype = socktype_from_unix( src->ai_socktype );
dst->ai_protocol = protocol_from_unix( src->ai_protocol );
}
if (src->ai_canonname)
{
size_t len = strlen( src->ai_canonname ) + 1;
dst->ai_canonname = next;
memcpy( dst->ai_canonname, src->ai_canonname, len );
next = dst->ai_canonname + len;
}
dst->ai_addrlen = sockaddr_from_unix( (const union unix_sockaddr *)src->ai_addr, NULL, 0 );
dst->ai_addr = next;
sockaddr_from_unix( (const union unix_sockaddr *)src->ai_addr, dst->ai_addr, dst->ai_addrlen );
dst->ai_next = NULL;
next = (char *)dst->ai_addr + dst->ai_addrlen;
if (dst == params->info || !addrinfo_in_list( params->info, dst ))
{
if (prev)
prev->ai_next = dst;
prev = dst;
dst = next;
}
}
freeaddrinfo( unix_info );
return 0;
#else
FIXME( "getaddrinfo() not found during build time\n" );
return WS_EAI_FAIL;
#endif
}
static int hostent_from_unix( const struct hostent *unix_host, struct WS_hostent *host, unsigned int *const size )
{
unsigned int needed_size = sizeof( struct WS_hostent ), alias_count = 0, addr_count = 0, i;
char *p;
needed_size += strlen( unix_host->h_name ) + 1;
for (alias_count = 0; unix_host->h_aliases[alias_count] != NULL; ++alias_count)
needed_size += sizeof(char *) + strlen( unix_host->h_aliases[alias_count] ) + 1;
needed_size += sizeof(char *); /* null terminator */
for (addr_count = 0; unix_host->h_addr_list[addr_count] != NULL; ++addr_count)
needed_size += sizeof(char *) + unix_host->h_length;
needed_size += sizeof(char *); /* null terminator */
if (*size < needed_size)
{
*size = needed_size;
return ERROR_INSUFFICIENT_BUFFER;
}
memset( host, 0, needed_size );
/* arrange the memory in the same order as windows >= XP */
host->h_addrtype = family_from_unix( unix_host->h_addrtype );
host->h_length = unix_host->h_length;
p = (char *)(host + 1);
host->h_aliases = (char **)p;
p += (alias_count + 1) * sizeof(char *);
host->h_addr_list = (char **)p;
p += (addr_count + 1) * sizeof(char *);
for (i = 0; i < addr_count; ++i)
{
host->h_addr_list[i] = p;
memcpy( host->h_addr_list[i], unix_host->h_addr_list[i], unix_host->h_length );
p += unix_host->h_length;
}
for (i = 0; i < alias_count; ++i)
{
size_t len = strlen( unix_host->h_aliases[i] ) + 1;
host->h_aliases[i] = p;
memcpy( host->h_aliases[i], unix_host->h_aliases[i], len );
p += len;
}
host->h_name = p;
strcpy( host->h_name, unix_host->h_name );
return 0;
}
static NTSTATUS unix_gethostbyaddr( void *args )
{
struct gethostbyaddr_params *params = args;
const void *addr = params->addr;
const struct in_addr loopback = { htonl( INADDR_LOOPBACK ) };
int unix_family = family_to_unix( params->family );
struct hostent *unix_host;
int ret;
if (params->family == WS_AF_INET && params->len == 4 && !memcmp( addr, magic_loopback_addr, 4 ))
addr = &loopback;
#ifdef HAVE_LINUX_GETHOSTBYNAME_R_6
{
char *unix_buffer, *new_buffer;
struct hostent stack_host;
int unix_size = 1024;
int locerr;
if (!(unix_buffer = malloc( unix_size )))
return WSAENOBUFS;
while (gethostbyaddr_r( addr, params->len, unix_family, &stack_host, unix_buffer,
unix_size, &unix_host, &locerr ) == ERANGE)
{
unix_size *= 2;
if (!(new_buffer = realloc( unix_buffer, unix_size )))
{
free( unix_buffer );
return WSAENOBUFS;
}
unix_buffer = new_buffer;
}
if (!unix_host)
ret = (locerr < 0 ? errno_from_unix( errno ) : host_errno_from_unix( locerr ));
else
ret = hostent_from_unix( unix_host, params->host, params->size );
free( unix_buffer );
return ret;
}
#else
pthread_mutex_lock( &host_mutex );
if (!(unix_host = gethostbyaddr( addr, params->len, unix_family )))
{
ret = (h_errno < 0 ? errno_from_unix( errno ) : host_errno_from_unix( h_errno ));
pthread_mutex_unlock( &host_mutex );
return ret;
}
ret = hostent_from_unix( unix_host, params->host, params->size );
pthread_mutex_unlock( &host_mutex );
return ret;
#endif
}
#ifdef HAVE_LINUX_GETHOSTBYNAME_R_6
static NTSTATUS unix_gethostbyname( void *args )
{
struct gethostbyname_params *params = args;
struct hostent stack_host, *unix_host;
char *unix_buffer, *new_buffer;
int unix_size = 1024;
int locerr;
int ret;
if (!(unix_buffer = malloc( unix_size )))
return WSAENOBUFS;
while (gethostbyname_r( params->name, &stack_host, unix_buffer, unix_size, &unix_host, &locerr ) == ERANGE)
{
unix_size *= 2;
if (!(new_buffer = realloc( unix_buffer, unix_size )))
{
free( unix_buffer );
return WSAENOBUFS;
}
unix_buffer = new_buffer;
}
if (!unix_host)
ret = (locerr < 0 ? errno_from_unix( errno ) : host_errno_from_unix( locerr ));
else
ret = hostent_from_unix( unix_host, params->host, params->size );
free( unix_buffer );
return ret;
}
#else
static NTSTATUS unix_gethostbyname( void *args )
{
struct gethostbyname_params *params = args;
struct hostent *unix_host;
int ret;
pthread_mutex_lock( &host_mutex );
if (!(unix_host = gethostbyname( params->name )))
{
ret = (h_errno < 0 ? errno_from_unix( errno ) : host_errno_from_unix( h_errno ));
pthread_mutex_unlock( &host_mutex );
return ret;
}
ret = hostent_from_unix( unix_host, params->host, params->size );
pthread_mutex_unlock( &host_mutex );
return ret;
}
#endif
static NTSTATUS unix_gethostname( void *args )
{
struct gethostname_params *params = args;
if (!gethostname( params->name, params->size ))
return 0;
return errno_from_unix( errno );
}
static NTSTATUS unix_getnameinfo( void *args )
{
struct getnameinfo_params *params = args;
union unix_sockaddr unix_addr;
socklen_t unix_addr_len;
unix_addr_len = sockaddr_to_unix( params->addr, params->addr_len, &unix_addr );
return addrinfo_err_from_unix( getnameinfo( &unix_addr.addr, unix_addr_len, params->host, params->host_len,
params->serv, params->serv_len,
nameinfo_flags_to_unix( params->flags ) ) );
}
const unixlib_entry_t __wine_unix_call_funcs[] =
{
unix_getaddrinfo,
unix_gethostbyaddr,
unix_gethostbyname,
unix_gethostname,
unix_getnameinfo,
};
#ifdef _WIN64
typedef ULONG PTR32;
struct WS_addrinfo32
{
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
PTR32 ai_addrlen;
PTR32 ai_canonname;
PTR32 ai_addr;
PTR32 ai_next;
};
struct WS_hostent32
{
PTR32 h_name;
PTR32 h_aliases;
short h_addrtype;
short h_length;
PTR32 h_addr_list;
};
static NTSTATUS put_addrinfo32( const struct WS_addrinfo *info, struct WS_addrinfo32 *info32,
unsigned int *size )
{
struct WS_addrinfo32 *dst = info32, *prev = NULL;
const struct WS_addrinfo *src;
unsigned int needed_size = 0;
for (src = info; src != NULL; src = src->ai_next)
{
needed_size += sizeof(struct WS_addrinfo32);
if (src->ai_canonname) needed_size += strlen( src->ai_canonname ) + 1;
needed_size += src->ai_addrlen;
}
if (*size < needed_size)
{
*size = needed_size;
return ERROR_INSUFFICIENT_BUFFER;
}
memset( info32, 0, needed_size );
for (src = info; src != NULL; src = src->ai_next)
{
char *next = (char *)(dst + 1);
dst->ai_flags = src->ai_flags;
dst->ai_family = src->ai_family;
dst->ai_socktype = src->ai_socktype;
dst->ai_protocol = src->ai_protocol;
if (src->ai_canonname)
{
dst->ai_canonname = PtrToUlong( next );
strcpy( next, src->ai_canonname );
next += strlen(next) + 1;
}
dst->ai_addrlen = src->ai_addrlen;
dst->ai_addr = PtrToUlong(next);
memcpy( next, src->ai_addr, dst->ai_addrlen );
next += dst->ai_addrlen;
if (prev) prev->ai_next = PtrToUlong(dst);
prev = dst;
dst = (struct WS_addrinfo32 *)next;
}
return STATUS_SUCCESS;
}
static NTSTATUS put_hostent32( const struct WS_hostent *host, struct WS_hostent32 *host32,
unsigned int *size )
{
unsigned int needed_size = sizeof( struct WS_hostent32 ), alias_count = 0, addr_count = 0, i;
char *p;
ULONG *aliases, *addr_list;
needed_size += strlen( host->h_name ) + 1;
for (alias_count = 0; host->h_aliases[alias_count] != NULL; ++alias_count)
needed_size += sizeof(ULONG) + strlen( host->h_aliases[alias_count] ) + 1;
needed_size += sizeof(ULONG); /* null terminator */
for (addr_count = 0; host->h_addr_list[addr_count] != NULL; ++addr_count)
needed_size += sizeof(ULONG) + host->h_length;
needed_size += sizeof(ULONG); /* null terminator */
if (*size < needed_size)
{
*size = needed_size;
return ERROR_INSUFFICIENT_BUFFER;
}
memset( host32, 0, needed_size );
/* arrange the memory in the same order as windows >= XP */
host32->h_addrtype = host->h_addrtype;
host32->h_length = host->h_length;
aliases = (ULONG *)(host32 + 1);
addr_list = aliases + alias_count + 1;
p = (char *)(addr_list + addr_count + 1);
host32->h_aliases = PtrToUlong( aliases );
host32->h_addr_list = PtrToUlong( addr_list );
for (i = 0; i < addr_count; ++i)
{
addr_list[i] = PtrToUlong( p );
memcpy( p, host->h_addr_list[i], host->h_length );
p += host->h_length;
}
for (i = 0; i < alias_count; ++i)
{
size_t len = strlen( host->h_aliases[i] ) + 1;
aliases[i] = PtrToUlong( p );
memcpy( p, host->h_aliases[i], len );
p += len;
}
host32->h_name = PtrToUlong( p );
strcpy( p, host->h_name );
return STATUS_SUCCESS;
}
static NTSTATUS wow64_unix_getaddrinfo( void *args )
{
struct
{
PTR32 node;
PTR32 service;
PTR32 hints;
PTR32 info;
PTR32 size;
} const *params32 = args;
NTSTATUS status;
struct WS_addrinfo hints;
struct getaddrinfo_params params =
{
ULongToPtr( params32->node ),
ULongToPtr( params32->service ),
NULL,
NULL,
ULongToPtr(params32->size)
};
if (params32->hints)
{
const struct WS_addrinfo32 *hints32 = ULongToPtr(params32->hints);
hints.ai_flags = hints32->ai_flags;
hints.ai_family = hints32->ai_family;
hints.ai_socktype = hints32->ai_socktype;
hints.ai_protocol = hints32->ai_protocol;
params.hints = &hints;
}
if (!(params.info = malloc( *params.size ))) return WSAENOBUFS;
status = unix_getaddrinfo( &params );
if (!status) put_addrinfo32( params.info, ULongToPtr(params32->info), ULongToPtr(params32->size) );
free( params.info );
return status;
}
static NTSTATUS wow64_unix_gethostbyaddr( void *args )
{
struct
{
PTR32 addr;
int len;
int family;
PTR32 host;
PTR32 size;
} const *params32 = args;
NTSTATUS status;
struct gethostbyaddr_params params =
{
ULongToPtr( params32->addr ),
params32->len,
params32->family,
NULL,
ULongToPtr(params32->size)
};
if (!(params.host = malloc( *params.size ))) return WSAENOBUFS;
status = unix_gethostbyaddr( &params );
if (!status)
status = put_hostent32( params.host, ULongToPtr(params32->host), ULongToPtr(params32->size) );
free( params.host );
return status;
}
static NTSTATUS wow64_unix_gethostbyname( void *args )
{
struct
{
PTR32 name;
PTR32 host;
PTR32 size;
} const *params32 = args;
NTSTATUS status;
struct gethostbyname_params params =
{
ULongToPtr( params32->name ),
NULL,
ULongToPtr(params32->size)
};
if (!(params.host = malloc( *params.size ))) return WSAENOBUFS;
status = unix_gethostbyname( &params );
if (!status)
status = put_hostent32( params.host, ULongToPtr(params32->host), ULongToPtr(params32->size) );
free( params.host );
return status;
}
static NTSTATUS wow64_unix_gethostname( void *args )
{
struct
{
PTR32 name;
unsigned int size;
} const *params32 = args;
struct gethostname_params params = { ULongToPtr(params32->name), params32->size };
if (!unix_gethostname( &params )) return 0;
return errno_from_unix( errno );
}
static NTSTATUS wow64_unix_getnameinfo( void *args )
{
struct
{
PTR32 addr;
int addr_len;
PTR32 host;
DWORD host_len;
PTR32 serv;
DWORD serv_len;
unsigned int flags;
} const *params32 = args;
struct getnameinfo_params params =
{
ULongToPtr( params32->addr ),
params32->addr_len,
ULongToPtr( params32->host ),
params32->host_len,
ULongToPtr( params32->serv ),
params32->serv_len,
params32->flags
};
return unix_getnameinfo( &params );
}
const unixlib_entry_t __wine_unix_call_wow64_funcs[] =
{
wow64_unix_getaddrinfo,
wow64_unix_gethostbyaddr,
wow64_unix_gethostbyname,
wow64_unix_gethostname,
wow64_unix_getnameinfo,
};
#endif /* _WIN64 */
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