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User NULL instead of 0 for pointers.

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gethostbyname(3) will return NULL in case of an error.

MFC after:	2 weeks.
This commit is contained in:
Marcelo Araujo 2016-04-18 14:12:42 +00:00
parent edf6b683e8
commit ff129d6f87
1 changed files with 2 additions and 2 deletions
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4
sbin/ifconfig/af_inet.c
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@ -133,10 +133,10 @@ in_getaddr(const char *s, int which)
if (inet_aton(s, &sin->sin_addr))
return;
if ((hp = gethostbyname(s)) != 0)
if ((hp = gethostbyname(s)) != NULL)
bcopy(hp->h_addr, (char *)&sin->sin_addr,
MIN((size_t)hp->h_length, sizeof(sin->sin_addr)));
else if ((np = getnetbyname(s)) != 0)
else if ((np = getnetbyname(s)) != NULL)
sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
else
errx(1, "%s: bad value", s);