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[svn] Document that the IP addresses are returned in order.

This commit is contained in:
hniksic 2003-11-12 17:37:46 -08:00
parent ee566b5b33
commit fea4fb28cb
2 changed files with 13 additions and 7 deletions
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5
src/ChangeLog
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@ -1,3 +1,8 @@
2003-11-13 Hrvoje Niksic <hniksic@xemacs.org>
* host.c (lookup_host): Document the fact that the addresses are
returned in order.
2003-11-12 Hrvoje Niksic <hniksic@xemacs.org>
* utils.c: Use limits.h only where available.

15
src/host.c
View File

@ -82,8 +82,8 @@ extern int h_errno;
static struct hash_table *host_name_addresses_map;
/* Lists of addresses. This should eventually be extended to handle
IPv6. */
/* Lists of IP addresses that result from running DNS queries. See
lookup_host for details. */
struct address_list {
int count; /* number of adrresses */
@ -471,13 +471,14 @@ forget_host_lookup (const char *host)
}
}
/* Look up HOST in DNS and return a list of IP addresses.
/* Look up HOST in DNS and return a list of IP addresses. The
addresses in the list are in the same order in which
gethostbyname/getaddrinfo returned them.
This function caches its result so that, if the same host is passed
the second time, the addresses are returned without the DNS lookup.
If you want to force lookup, call forget_host_lookup() prior to
this function, or set opt.dns_cache to 0 to globally disable
caching.
the second time, the addresses are returned without DNS lookup. If
you want to force lookup, call forget_host_lookup() prior to this
function, or set opt.dns_cache to 0 to globally disable caching.
If SILENT is non-zero, progress messages are not printed. */