Author: hrs
Date: Wed Dec 21 07:05:34 2016
New Revision: 310352
URL: https://svnweb.freebsd.org/changeset/base/310352
Log:
Simplify type casting of struct sockaddr_in.
Modified:
head/usr.sbin/syslogd/syslogd.c
Modified: head/usr.sbin/syslogd/syslogd.c
==============================================================================
--- head/usr.sbin/syslogd/syslogd.c Wed Dec 21 06:49:21 2016
(r310351)
+++ head/usr.sbin/syslogd/syslogd.c Wed Dec 21 07:05:34 2016
(r310352)
@@ -128,6 +128,7 @@ static const char include_ext[] = ".conf
#define sstosa(ss) ((struct sockaddr *)(ss))
#define satosin6(sa) ((struct sockaddr_in6 *)(void *)(sa))
+#define sstosin(ss) ((struct sockaddr_in *)(ss))
#define satosin(sa) ((struct sockaddr_in *)(void *)(sa))
#define s6_addr32 __u6_addr.__u6_addr32
#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
@@ -2368,7 +2369,7 @@ allowaddr(char *s)
struct servent *se;
int masklen = -1;
struct addrinfo hints, *res;
- struct in_addr *addrp, *maskp;
+ in_addr_t *addrp, *maskp;
#ifdef INET6
int i;
u_int32_t *addr6p, *mask6p;
@@ -2434,28 +2435,27 @@ allowaddr(char *s)
ap->a_mask.ss_family = res->ai_family;
if (res->ai_family == AF_INET) {
ap->a_mask.ss_len = sizeof(struct sockaddr_in);
- maskp = &((struct sockaddr_in *)&ap->a_mask)->sin_addr;
- addrp = &((struct sockaddr_in *)&ap->a_addr)->sin_addr;
+ maskp = &sstosin(&ap->a_mask)->sin_addr.s_addr;
+ addrp = &sstosin(&ap->a_addr)->sin_addr.s_addr;
if (masklen < 0) {
/* use default netmask */
- if (IN_CLASSA(ntohl(addrp->s_addr)))
- maskp->s_addr = htonl(IN_CLASSA_NET);
- else if (IN_CLASSB(ntohl(addrp->s_addr)))
- maskp->s_addr = htonl(IN_CLASSB_NET);
+ if (IN_CLASSA(ntohl(*addrp)))
+ *maskp = htonl(IN_CLASSA_NET);
+ else if (IN_CLASSB(ntohl(*addrp)))
+ *maskp = htonl(IN_CLASSB_NET);
else
- maskp->s_addr = htonl(IN_CLASSC_NET);
+ *maskp = htonl(IN_CLASSC_NET);
+ } else if (masklen == 0) {
+ *maskp = 0;
} else if (masklen <= 32) {
/* convert masklen to netmask */
- if (masklen == 0)
- maskp->s_addr = 0;
- else
- maskp->s_addr = htonl(~((1 << (32 -
masklen)) - 1));
+ *maskp = htonl(~((1 << (32 - masklen)) - 1));
} else {
freeaddrinfo(res);
return (-1);
}
/* Lose any host bits in the network number. */
- addrp->s_addr &= maskp->s_addr;
+ *addrp &= *maskp;
}
#ifdef INET6
else if (res->ai_family == AF_INET6 && masklen <= 128) {
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