diff options
| author | wollman <wollman@FreeBSD.org> | 1994-12-01 22:25:38 +0000 |
|---|---|---|
| committer | wollman <wollman@FreeBSD.org> | 1994-12-01 22:25:38 +0000 |
| commit | 1504867da7e0ae79c8e140fa173348cd341befef (patch) | |
| tree | c725def6886d45e4c3bae153e0a8f1ca7f0fba1e /lib/libc/net/gethostbydns.c | |
| parent | fc7ab387c24ee0496deacc177ee3a433633fb8e1 (diff) | |
| download | FreeBSD-src-1504867da7e0ae79c8e140fa173348cd341befef.zip FreeBSD-src-1504867da7e0ae79c8e140fa173348cd341befef.tar.gz | |
In _gethostbydnsaddr(), force RES_RECURSE into _res.options. This is
incredibly obnoxious, but also makes inverse mappings work when the local
resolver is in a cache-only configuration. (Maybe this is actually
a bug in BIND?)
Diffstat (limited to 'lib/libc/net/gethostbydns.c')
| -rw-r--r-- | lib/libc/net/gethostbydns.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/net/gethostbydns.c b/lib/libc/net/gethostbydns.c index baeceee..110e417 100644 --- a/lib/libc/net/gethostbydns.c +++ b/lib/libc/net/gethostbydns.c @@ -53,7 +53,7 @@ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$Id: gethostbydns.c,v 1.1 1994/09/25 02:12:05 pst Exp $"; +static char rcsid[] = "$Id: gethostbydns.c,v 1.2 1994/09/25 17:45:37 pst Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/param.h> @@ -431,6 +431,7 @@ _gethostbydnsaddr(addr, len, type) querybuf buf; register struct hostent *hp; char qbuf[MAXDNAME+1]; + int o_res_options = _res.options; if (type != AF_INET) return (NULL); @@ -439,7 +440,9 @@ _gethostbydnsaddr(addr, len, type) ((unsigned)addr[2] & 0xff), ((unsigned)addr[1] & 0xff), ((unsigned)addr[0] & 0xff)); + _res.options |= RES_RECURSE; n = res_query(qbuf, C_IN, T_PTR, (u_char *)buf.buf, sizeof buf.buf); + _res.options = o_res_options; if (n < 0) { if (_res.options & RES_DEBUG) printf("res_query failed\n"); |
