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User NULL instead of 0 for pointers.

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getservent(3) returns NULL on EOF or error.

MFC after:	2 weeks.
This commit is contained in:
Marcelo Araujo 2016-04-18 07:14:01 +00:00
parent 1b56693f8b
commit fffa1bd071
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=298191
1 changed files with 1 additions and 1 deletions
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2
usr.bin/talk/get_addrs.c
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@ -59,7 +59,7 @@ get_addrs(const char *my_machine_name __unused, const char *his_machine_name)
err(1, "failed to find my interface address");
/* find the server's port */
sp = getservbyname("ntalk", "udp");
if (sp == 0)
if (sp == NULL)
errx(1, "ntalk/udp: service is not registered");
daemon_port = sp->s_port;
}