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Replacing gethostbyname, gethostbyname2 and their _r variants with getaddrinfo to increase portability.

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This commit is contained in:
Tobias Brunner
2009-08-14 16:14:32 +02:00
parent 26965b4ef3
commit f1777dff59
6 changed files with 128 additions and 130 deletions
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src/libfreeswan/atoaddr.3
+4 -6
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@@ -54,7 +54,7 @@ on a big-endian host and
.B 4.3.2.1
on a little-endian host),
a DNS name to be looked up via
.IR gethostbyname (3),
.IR getaddrinfo (3),
or an old-style network name to be looked up via
.IR getnetbyname (3).
.PP
@@ -91,10 +91,8 @@ DNS names may be complete (optionally terminated with a ``.'')
or incomplete, and are looked up as specified by local system configuration
(see
.IR resolver (5)).
The
.I h_addr
value returned by
.IR gethostbyname (3)
The first value returned by
.IR getaddrinfo (3)
is used,
so with current DNS implementations,
the result when the name corresponds to more than one address is
@@ -102,7 +100,7 @@ difficult to predict.
Name lookup resorts to
.IR getnetbyname (3)
only if
.IR gethostbyname (3)
.IR getaddrinfo (3)
fails.
.PP
A subnet specification is of the form \fInetwork\fB/\fImask\fR.