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Don't assume ai0->ai_canonname will always be filled in. Print the

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user-supplied host name if we can't get a canonical name.

Obtained from:	contrib/tcp_wrappers/socket.c rev. 1.4 (in spirit)
This commit is contained in:
Garrett Wollman 2000-09-24 01:54:49 +00:00
parent fd2802cfe0
commit 2804330f1a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=66315
1 changed files with 6 additions and 1 deletions
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7
usr.bin/finger/net.c
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@ -96,7 +96,12 @@ netfinger(name)
}
multi = (ai0->ai_next) != 0;
printf("[%s]\n", ai0->ai_canonname);
/* ai_canonname may not be filled in if the user specified an IP. */
if (ai0->ai_canonname == 0)
printf("[%s]\n", host);
else
printf("[%s]\n", ai0->ai_canonname);
for (ai = ai0; ai != 0; ai = ai->ai_next) {
if (multi)