diff options
| author | peter <peter@FreeBSD.org> | 1996-11-01 06:25:43 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1996-11-01 06:25:43 +0000 |
| commit | f21a0e44182a336c25b015823557bf2ac004e6b7 (patch) | |
| tree | ae44eb5ec2dfddcf27cbeb1f831e2486912e0765 /lib/libc/net/gethostbydns.c | |
| parent | 75c2ebaa11e619041a6027dd451ffc0f75e66d23 (diff) | |
| download | FreeBSD-src-f21a0e44182a336c25b015823557bf2ac004e6b7.zip FreeBSD-src-f21a0e44182a336c25b015823557bf2ac004e6b7.tar.gz | |
Add an "officially undocumented" tweak for squid so that it can see the
TTL of DNS records that it looks up for it's resolver cache.
Obtained from: Endre Balint Nagy <bne@CareNet.hu>, via squid-1.1.x source.
Diffstat (limited to 'lib/libc/net/gethostbydns.c')
| -rw-r--r-- | lib/libc/net/gethostbydns.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libc/net/gethostbydns.c b/lib/libc/net/gethostbydns.c index 1d48bdc..fb92b3f 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 1.10 1996/08/29 20:07:50 peter Exp $"; +static char rcsid[] = "$Id: gethostbydns.c,v 1.11 1996/10/01 03:45:06 pst Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> @@ -113,6 +113,7 @@ typedef union { } align; extern int h_errno; +int _dns_ttl_; #ifdef DEBUG static void @@ -204,6 +205,7 @@ gethostanswer(answer, anslen, qname, qtype) host.h_addr_list = h_addr_ptrs; haveanswer = 0; had_error = 0; + _dns_ttl_ = -1; while (ancount-- > 0 && cp < eom && !had_error) { n = dn_expand(answer->buf, eom, cp, bp, buflen); if ((n < 0) || !(*name_ok)(bp)) { @@ -214,7 +216,10 @@ gethostanswer(answer, anslen, qname, qtype) type = _getshort(cp); cp += INT16SZ; /* type */ class = _getshort(cp); - cp += INT16SZ + INT32SZ; /* class, TTL */ + cp += INT16SZ; /* class */ + if (qtype == T_A && type == T_A) + _dns_ttl_ = _getlong(cp); + cp += INT32SZ; /* TTL */ n = _getshort(cp); cp += INT16SZ; /* len */ if (class != C_IN) { |
