diff options
Diffstat (limited to 'lib/libc/net/res_init.c')
| -rw-r--r-- | lib/libc/net/res_init.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/lib/libc/net/res_init.c b/lib/libc/net/res_init.c index 42d3b3ca1e3..5cb597dad80 100644 --- a/lib/libc/net/res_init.c +++ b/lib/libc/net/res_init.c @@ -1,4 +1,4 @@ -/* $OpenBSD: res_init.c,v 1.37 2008/08/15 14:57:20 djm Exp $ */ +/* $OpenBSD: res_init.c,v 1.38 2009/06/04 18:06:35 pyr Exp $ */ /* * ++Copyright++ 1985, 1989, 1993 @@ -165,6 +165,7 @@ _res_init(int usercall) FILE *fp; char *cp, **pp; int n; + int findex; char buf[BUFSIZ]; int nserv = 0; /* number of nameserver records read from file */ int haveenv = 0; @@ -296,6 +297,33 @@ _res_init(int usercall) *cp = '\0'; if (buf[0] == '\0') continue; + /* set family lookup order */ + if (MATCH(buf, "family")) { + cp = buf + sizeof("family") - 1; + cp += strspn(cp, " \t"); + cp[strcspn(cp, "\n")] = '\0'; + findex = 0; + _resp->family[0] = _resp->family[1] = -1; + while (*cp != '\0' && findex < 2) { + if (!strncmp(cp, "inet6", strlen("inet6"))) { + _resp->family[findex] = AF_INET6; + cp += strlen("inet6"); + } else if (!strncmp(cp, "inet4", + strlen("inet4"))) { + _resp->family[findex] = AF_INET; + cp += strlen("inet4"); + } + if (*cp != ' ' && *cp != '\t' && *cp != '\0') { + _resp->family[findex] = -1; + break; + } + findex++; + cp += strspn(cp, " \t"); + } + + if (_resp->family[0] == _resp->family[1]) + _resp->family[1] = -1; + } /* read default domain name */ if (MATCH(buf, "domain")) { if (haveenv) /* skip if have from environ */ |