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ip/rip: use new parseipandmask() function

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This commit is contained in:
cinap_lenrek 2019-02-11 23:36:29 +01:00
parent 595fbddb1c
commit 168dabc142
1 changed files with 16 additions and 17 deletions
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33
sys/src/cmd/ip/rip.c
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@ -143,17 +143,6 @@ fatal(int syserr, char *fmt, ...)
exits(buf);
}
ulong
v4parseipmask(uchar *ip, char *p)
{
ulong x;
uchar v6ip[IPaddrlen];
x = parseipmask(v6ip, p);
memmove(ip, v6ip+IPv4off, 4);
return x;
}
uchar*
v4defmask(uchar *ip)
{
@ -179,6 +168,18 @@ v6tov4mask(uchar *v4, uchar *v6)
memmove(v4, v6+IPv4off, 4);
}
int
v4parseipandmask(uchar *ip, uchar *mask, char *p, char *m)
{
uchar v6ip[IPaddrlen], v6mask[IPaddrlen];
if(parseipandmask(v6ip, v6mask, p, m) == -1)
return -1;
v6tov4mask(mask, v6mask);
return v6tov4(ip, v6ip);
}
#define equivip(a, b) (memcmp((a), (b), Pasize) == 0)
void
@ -355,8 +356,7 @@ readifcs(void)
i = 0;
for(ifc = ifcs; ifc != nil; ifc = ifc->next){
for(lifc = ifc->lifc; lifc != nil && i < Nifc; lifc = lifc->next){
// ignore any interfaces that aren't v4
if(memcmp(lifc->ip, v4prefix, IPaddrlen-IPv4addrlen) != 0)
if(!isv4(lifc->ip))
continue;
ip = &ialloc.ifc[i++];
v6tov4(ip->addr, lifc->ip);
@ -403,12 +403,11 @@ readroutes(void)
n = getfields(p, f, 6, 1, " \t");
if(n < 5)
continue;
v4parseip(route.dest, f[0]);
v4parseipmask(route.mask, f[1]);
if(v4parseipandmask(route.dest, route.mask, f[0], f[1]) == -1)
continue;
v4parseip(route.gate, f[2]);
route.metric = Infinity;
if(equivip(route.dest, ralloc.def.dest)
&& equivip(route.mask, ralloc.def.mask))
if(equivip(route.dest, ralloc.def.dest) && equivip(route.mask, ralloc.def.mask))
memmove(ralloc.def.gate, route.gate, Pasize);
else if(!equivip(route.dest, route.gate) && strchr(f[3], 'i') == 0)
considerroute(&route);