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Fix gethostbyaddr() prototype to conform to IEEE Std 1003.1:

Browse Source 
http://www.opengroup.org/onlinepubs/009695399/functions/gethostbyaddr.html

gethostbyaddr_r() is changed as well.
It breaks ABI backward compatibility on 64 bit arch.  So, we fix it
on 32 bit arch only for now.

Reported by:	Rostislav Krasny <rosti.bsd@gmail.com>
This commit is contained in:
Hajimu UMEMOTO 2006-05-12 15:37:23 +00:00
parent b484e04bf9
commit 3da59cd007
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=158477
7 changed files with 45 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
include/netdb.h
View File

@ -63,6 +63,7 @@
#include <sys/cdefs.h>
#include <sys/_types.h>
#include <machine/_limits.h>
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
@ -220,9 +221,15 @@ void endnetgrent(void);
void endprotoent(void);
void endservent(void);
void freehostent(struct hostent *);
struct hostent *gethostbyaddr(const char *, int, int);
int gethostbyaddr_r(const char *, int, int, struct hostent *,
#if __LONG_BIT == 64
struct hostent *gethostbyaddr(const void *, int, int);
int gethostbyaddr_r(const void *, int, int, struct hostent *,
char *, size_t, struct hostent **, int *);
#else
struct hostent *gethostbyaddr(const void *, socklen_t, int);
int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *,
char *, size_t, struct hostent **, int *);
#endif
struct hostent *gethostbyname(const char *);
int gethostbyname_r(const char *, struct hostent *, char *, size_t,
struct hostent **, int *);

11
lib/libc/net/gethostbydns.c
View File

@ -550,11 +550,13 @@ _dns_gethostbyname(void *rval, void *cb_data, va_list ap)
int
_dns_gethostbyaddr(void *rval, void *cb_data, va_list ap)
{
const u_char *uaddr;
int len, af;
const void *addr;
socklen_t len;
int af;
char *buffer;
size_t buflen;
int *errnop, *h_errnop;
const u_char *uaddr;
struct hostent *hptr, he;
struct hostent_data *hed;
int n;
@ -570,14 +572,15 @@ _dns_gethostbyaddr(void *rval, void *cb_data, va_list ap)
int ret_h_error;
#endif /*SUNSECURITY*/
uaddr = va_arg(ap, const u_char *);
len = va_arg(ap, int);
addr = va_arg(ap, const void *);
len = va_arg(ap, socklen_t);
af = va_arg(ap, int);
hptr = va_arg(ap, struct hostent *);
buffer = va_arg(ap, char *);
buflen = va_arg(ap, size_t);
errnop = va_arg(ap, int *);
h_errnop = va_arg(ap, int *);
uaddr = (const u_char *)addr;
*((struct hostent **)rval) = NULL;

9
lib/libc/net/gethostbyht.c
View File

@ -282,8 +282,9 @@ _ht_gethostbyname(void *rval, void *cb_data, va_list ap)
int
_ht_gethostbyaddr(void *rval, void *cb_data, va_list ap)
{
const char *addr;
int len, af;
const void *addr;
socklen_t len;
int af;
char *buffer;
size_t buflen;
int *errnop, *h_errnop;
@ -292,8 +293,8 @@ _ht_gethostbyaddr(void *rval, void *cb_data, va_list ap)
res_state statp;
int error;
addr = va_arg(ap, const char *);
len = va_arg(ap, int);
addr = va_arg(ap, const void *);
len = va_arg(ap, socklen_t);
af = va_arg(ap, int);
hptr = va_arg(ap, struct hostent *);
buffer = va_arg(ap, char *);

4
lib/libc/net/gethostbyname.3
View File

@ -55,7 +55,7 @@
.Ft struct hostent *
.Fn gethostbyname2 "const char *name" "int af"
.Ft struct hostent *
.Fn gethostbyaddr "const char *addr" "int len" "int type"
.Fn gethostbyaddr "const void *addr" "socklen_t len" "int type"
.Ft struct hostent *
.Fn gethostent void
.Ft void
@ -246,7 +246,7 @@ struct hostent *hp;
if (!inet_aton(ipstr, &ip))
errx(1, "can't parse IP address %s", ipstr);
if ((hp = gethostbyaddr((const char *)&ip,
if ((hp = gethostbyaddr((const void *)&ip,
sizeof ip, AF_INET)) == NULL)
errx(1, "no name associated with %s", ipstr);

14
lib/libc/net/gethostbynis.c
View File

@ -178,8 +178,8 @@ _gethostbynisname_r(const char *name, int af, struct hostent *he,
}
static int
_gethostbynisaddr_r(const char *addr, int len, int af, struct hostent *he,
struct hostent_data *hed)
_gethostbynisaddr_r(const void *addr, socklen_t len, int af,
struct hostent *he, struct hostent_data *hed)
{
char *map;
char numaddr[46];
@ -227,7 +227,7 @@ _gethostbynisname(const char *name, int af)
}
struct hostent *
_gethostbynisaddr(const char *addr, int len, int af)
_gethostbynisaddr(const void *addr, socklen_t len, int af)
{
#ifdef YP
struct hostent *he;
@ -303,8 +303,8 @@ int
_nis_gethostbyaddr(void *rval, void *cb_data, va_list ap)
{
#ifdef YP
const char *addr;
int len;
const void *addr;
socklen_t len;
int af;
char *buffer;
size_t buflen;
@ -313,8 +313,8 @@ _nis_gethostbyaddr(void *rval, void *cb_data, va_list ap)
struct hostent_data *hed;
res_state statp;
addr = va_arg(ap, const char *);
len = va_arg(ap, int);
addr = va_arg(ap, const void *);
len = va_arg(ap, socklen_t);
af = va_arg(ap, int);
hptr = va_arg(ap, struct hostent *);
buffer = va_arg(ap, char *);

18
lib/libc/net/gethostnamadr.c
View File

@ -573,8 +573,14 @@ gethostbyname_internal(const char *name, int af, struct hostent *hp, char *buf,
}
int
gethostbyaddr_r(const char *addr, int len, int af, struct hostent *hp,
char *buf, size_t buflen, struct hostent **result, int *h_errnop)
gethostbyaddr_r(const void *addr,
#if __LONG_BIT == 64
int len,
#else
socklen_t len,
#endif
int af, struct hostent *hp, char *buf, size_t buflen,
struct hostent **result, int *h_errnop)
{
const u_char *uaddr = (const u_char *)addr;
const struct in6_addr *addr6;
@ -606,7 +612,7 @@ gethostbyaddr_r(const char *addr, int len, int af, struct hostent *hp,
}
if (af == AF_INET6 && len == NS_IN6ADDRSZ) {
addr6 = (const struct in6_addr *)(const void *)uaddr;
addr6 = (const struct in6_addr *)addr;
if (IN6_IS_ADDR_LINKLOCAL(addr6)) {
RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);
*h_errnop = statp->res_h_errno;
@ -678,7 +684,11 @@ gethostbyname2(const char *name, int af)
}
struct hostent *
gethostbyaddr(const char *addr, int len, int af)
#if __LONG_BIT == 64
gethostbyaddr(const void *addr, int len, int af)
#else
gethostbyaddr(const void *addr, socklen_t len, int af)
#endif
{
struct hostdata *hd;
struct hostent *rval;

2
lib/libc/net/netdb_private.h
View File

@ -133,7 +133,7 @@ void _endhostdnsent(void);
void _endhosthtent(struct hostent_data *);
void _endnetdnsent(void);
void _endnethtent(struct netent_data *);
struct hostent *_gethostbynisaddr(const char *, int, int);
struct hostent *_gethostbynisaddr(const void *, socklen_t, int);
struct hostent *_gethostbynisname(const char *, int);
void _map_v4v6_address(const char *, char *);
void _map_v4v6_hostent(struct hostent *, char **, char *);