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added struct sockaddr_ll to union sockaddr_union to avoid "strict aliasing"

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This commit is contained in:
Gerhard Rieger 2010-01-04 12:59:56 +01:00
parent 30a3ec3baa
commit a8a8626c2f
5 changed files with 15 additions and 8 deletions
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4
CHANGES
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@ -1,4 +1,8 @@
corrections:
added struct sockaddr_ll to union sockaddr_union to avoid "strict
aliasing" warnings (problem reported by Paul Wouters)
####################### V 1.7.1.1: ####################### V 1.7.1.1:
corrections: corrections:

2
VERSION
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@ -1 +1 @@
"1.7.1.1" "1.7.1.1+sockaddrll"

5
sysutils.h
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@ -1,5 +1,5 @@
/* source: sysutils.h */ /* source: sysutils.h */
/* Copyright Gerhard Rieger 2001-2008 */ /* Copyright Gerhard Rieger 2001-2010 */
/* Published under the GNU General Public License V.2, see file COPYING */ /* Published under the GNU General Public License V.2, see file COPYING */
#ifndef __sysutils_h_included #ifndef __sysutils_h_included
@ -27,6 +27,9 @@ union sockaddr_union {
#if WITH_IP6 #if WITH_IP6
struct sockaddr_in6 ip6; struct sockaddr_in6 ip6;
#endif /* WITH_IP6 */ #endif /* WITH_IP6 */
#if WITH_INTERFACE
struct sockaddr_ll ll;
#endif
} ; } ;
#endif /* _WITH_SOCKET */ #endif /* _WITH_SOCKET */

8
xio-interface.c
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@ -1,5 +1,5 @@
/* source: xio-interface.c */ /* source: xio-interface.c */
/* Copyright Gerhard Rieger 2008 */ /* Copyright Gerhard Rieger 2010 */
/* Published under the GNU General Public License V.2, see file COPYING */ /* Published under the GNU General Public License V.2, see file COPYING */
/* this file contains the source for opening addresses of raw socket type */ /* this file contains the source for opening addresses of raw socket type */
@ -60,9 +60,9 @@ int _xioopen_interface(const char *ifname,
needbind = true; needbind = true;
} }
/*!!! parse by ':' */ /*!!! parse by ':' */
((struct sockaddr_ll *)&us)->sll_family = pf; us.ll.sll_family = pf;
((struct sockaddr_ll *)&us)->sll_protocol = htons(ETH_P_ALL); us.ll.sll_protocol = htons(ETH_P_ALL);
((struct sockaddr_ll *)&us)->sll_ifindex = ifidx; us.ll.sll_ifindex = ifidx;
uslen = sizeof(sall); uslen = sizeof(sall);
needbind = true; needbind = true;
xfd->peersa = (union sockaddr_union)us; xfd->peersa = (union sockaddr_union)us;

4
xioread.c
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@ -1,5 +1,5 @@
/* source: xioread.c */ /* source: xioread.c */
/* Copyright Gerhard Rieger 2001-2009 */ /* Copyright Gerhard Rieger 2001-2010 */
/* Published under the GNU General Public License V.2, see file COPYING */ /* Published under the GNU General Public License V.2, see file COPYING */
/* this is the source of the extended read function */ /* this is the source of the extended read function */
@ -148,7 +148,7 @@ ssize_t xioread(xiofile_t *file, void *buff, size_t bufsiz) {
*/ */
#if defined(PF_PACKET) && defined(PACKET_OUTGOING) #if defined(PF_PACKET) && defined(PACKET_OUTGOING)
if (from.soa.sa_family == PF_PACKET) { if (from.soa.sa_family == PF_PACKET) {
if ((((struct sockaddr_ll *)&from.soa)->sll_pkttype & PACKET_OUTGOING) if ((from.ll.sll_pkttype & PACKET_OUTGOING)
== 0) { == 0) {
errno = EAGAIN; return -1; errno = EAGAIN; return -1;
} }