Date: Wed, 01 Jun 2005 21:44:03 +0900 From: Hajimu UMEMOTO <ume@mahoroba.org> To: freebsd-arch@freebsd.org, standards@freebsd.org, current@freebsd.org Cc: nectar@freebsd.org Subject: Re: [CFR] correct type of addrinfo.ai_addrlen and netent.n_net Message-ID: <ygeacmatffw.wl%ume@mahoroba.org> In-Reply-To: <ygepsv7i8d1.wl%ume@mahoroba.org> References: <ygezmub1t1c.wl%ume@mahoroba.org> <20050531.075329.118637972.imp@bsdimp.com> <ygevf4zihhz.wl%ume@mahoroba.org> <20050531.084832.20036038.imp@bsdimp.com> <ygeu0kjigeg.wl%ume@mahoroba.org> <86fyw32yqm.fsf@xps.des.no> <ygesm03ie9a.wl%ume@mahoroba.org> <86k6lfbafu.fsf@xps.des.no> <ygepsv7i8d1.wl%ume@mahoroba.org>
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--Multipart_Wed_Jun__1_21:44:03_2005-1
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Hi,
>>>>> On Wed, 01 Jun 2005 03:00:10 +0900
>>>>> Hajimu UMEMOTO <ume@freebsd.org> said:
ume> In anyway, there is one more issue in my patch. We cannot correct 1st
ume> argument of getnetbyaddr(3) without breaking ABI compatibility.
ume> Fortunately, getnetbyaddr(3) is not refered else where in our
ume> libraries. So, I'll fix getnetbyaddr(3).
I've attached the patch to correct 1st argument of getnetbyaddr(3) in
this mail. It is subset of my previous patch. Since it breaks ABI
compatibility of getnetbyaddr(3), I think it is better to correct
n_net member of struct netent, too. Since there is objection, the
patch leaves struct addrinfo as is. So, it doesn't need to bump any
shlib major. Is it okay?
Sincerely,
--Multipart_Wed_Jun__1_21:44:03_2005-1
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Content-Disposition: attachment; filename="netdb.h-fix-getnetbyadr.diff"
Content-Transfer-Encoding: 7bit
Index: include/netdb.h
diff -u include/netdb.h.orig include/netdb.h
--- include/netdb.h.orig Sat May 28 01:20:40 2005
+++ include/netdb.h Sat May 28 01:31:52 2005
@@ -105,28 +103,11 @@
#define h_addr h_addr_list[0] /* address, for backward compatibility */
};
-/*
- * Note: n_net used to be an unsigned long integer.
- * In XNS5, and subsequently in POSIX-2001 it was changed to an
- * uint32_t.
- * To accomodate for this while preserving binary compatibility with
- * the old interface, we prepend or append 32 bits of padding,
- * depending on the (LP64) architecture's endianness.
- *
- * This should be deleted the next time the libc major number is
- * incremented.
- */
struct netent {
char *n_name; /* official name of net */
char **n_aliases; /* alias list */
int n_addrtype; /* net address type */
-#if __LONG_BIT == 64 && _BYTE_ORDER == _BIG_ENDIAN
- uint32_t __n_pad0; /* ABI compatibility */
-#endif
uint32_t n_net; /* network # */
-#if __LONG_BIT == 64 && _BYTE_ORDER == _LITTLE_ENDIAN
- uint32_t __n_pad0; /* ABI compatibility */
-#endif
};
struct servent {
@@ -262,11 +226,7 @@
struct hostent *gethostent(void);
struct hostent *getipnodebyaddr(const void *, size_t, int, int *);
struct hostent *getipnodebyname(const char *, int, int, int *);
-#if __LONG_BIT == 64
-struct netent *getnetbyaddr(unsigned long, int); /* ABI compatibility */
-#else
struct netent *getnetbyaddr(uint32_t, int);
-#endif
struct netent *getnetbyname(const char *);
struct netent *getnetent(void);
int getnetgrent(char **, char **, char **);
Index: lib/libc/net/getnetbydns.c
diff -u -p lib/libc/net/getnetbydns.c.orig lib/libc/net/getnetbydns.c
--- lib/libc/net/getnetbydns.c.orig Sat May 28 01:24:33 2005
+++ lib/libc/net/getnetbydns.c Sat May 28 01:36:52 2005
@@ -259,9 +259,6 @@ getnetanswer(querybuf *answer, int ansle
break;
}
ne->n_aliases++;
-#if __LONG_BIT == 64
- ne->__n_pad0 = 0; /* ABI compatibility */
-#endif
return 0;
}
h_errno = TRY_AGAIN;
@@ -334,9 +331,6 @@ _dns_getnetbyaddr(void *rval, void *cb_d
while ((net & 0xff) == 0 && net != 0)
net >>= 8;
ne->n_net = net;
-#if __LONG_BIT == 64
- ne->__n_pad0 = 0; /* ABI compatibility */
-#endif
return NS_SUCCESS;
}
return NS_NOTFOUND;
Index: lib/libc/net/getnetbyht.c
diff -u -p lib/libc/net/getnetbyht.c.orig lib/libc/net/getnetbyht.c
--- lib/libc/net/getnetbyht.c.orig Sat May 28 01:24:33 2005
+++ lib/libc/net/getnetbyht.c Sat May 28 01:37:13 2005
@@ -122,9 +122,6 @@ again:
if (p != NULL)
*p++ = '\0';
ne->n_net = inet_network(cp);
-#if __LONG_BIT == 64
- ne->__n_pad0 = 0; /* ABI compatibility */
-#endif
ne->n_addrtype = AF_INET;
q = ne->n_aliases = ned->net_aliases;
if (p != NULL) {
Index: lib/libc/net/getnetbynis.c
diff -u -p lib/libc/net/getnetbynis.c.orig lib/libc/net/getnetbynis.c
--- lib/libc/net/getnetbynis.c.orig Sat May 28 01:24:33 2005
+++ lib/libc/net/getnetbynis.c Sat May 28 01:37:35 2005
@@ -99,9 +99,6 @@ _getnetbynis(const char *name, char *map
cp++;
ne->n_net = inet_network(cp);
-#if __LONG_BIT == 64
- ne->__n_pad0 = 0; /* ABI compatibility */
-#endif
ne->n_addrtype = AF_INET;
q = ne->n_aliases = ned->net_aliases;
Index: lib/libc/net/getnetnamadr.c
diff -u -p lib/libc/net/getnetnamadr.c.orig lib/libc/net/getnetnamadr.c
--- lib/libc/net/getnetnamadr.c.orig Sat May 28 01:35:00 2005
+++ lib/libc/net/getnetnamadr.c Sat May 28 01:35:32 2005
@@ -165,17 +165,13 @@ getnetbyname(const char *name)
}
struct netent *
-#if __LONG_BIT == 64
-getnetbyaddr(u_long addr, int af) /* ABI compatibility */
-#else
getnetbyaddr(uint32_t addr, int af)
-#endif
{
struct netdata *nd;
if ((nd = __netdata_init()) == NULL)
return NULL;
- if (getnetbyaddr_r((uint32_t)addr, af, &nd->net, &nd->data) != 0)
+ if (getnetbyaddr_r(addr, af, &nd->net, &nd->data) != 0)
return NULL;
return &nd->net;
}
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--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
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