+ diag(ads,"too many nameservers, ignoring %s",inet_ntoa(addr));
+ return;
+ }
+
+ ads->servers[ads->nservers].addr= addr;
+ ads->servers[ads->nservers].tcpsocket= -1;
+ ads->nservers++;
+}
+
+static void configparseerr(adns_state ads, const char *fn, int lno,
+ const char *fmt, ...) {
+ va_list al;
+
+ if (ads->iflags & adns_if_noerrprint) return;
+ if (lno==-1) fprintf(stderr,"adns: %s: ",fn);
+ else fprintf(stderr,"adns: %s:%d: ",fn,lno);
+ va_start(al,fmt);
+ vfprintf(stderr,fmt,al);
+ va_end(al);
+ fputc('\n',stderr);
+}
+
+static void ccf_nameserver(adns_state ads, const char *fn, int lno, const char *buf) {
+ struct in_addr ia;
+
+ if (!inet_aton(buf,&ia)) {
+ configparseerr(ads,fn,lno,"invalid nameserver address `%s'",buf);
+ return;
+ }
+ debug(ads,"using nameserver %s",inet_ntoa(ia));
+ addserver(ads,ia);
+}
+
+static void ccf_search(adns_state ads, const char *fn, int lno, const char *buf) {
+ if (!buf) return;
+ diag(ads,"warning - `search' ignored FIXME");
+}
+
+static void ccf_sortlist(adns_state ads, const char *fn, int lno, const char *buf) {
+ diag(ads,"warning - `sortlist' ignored FIXME");
+}
+
+static void ccf_options(adns_state ads, const char *fn, int lno, const char *buf) {
+ if (!buf) return;
+ diag(ads,"warning - `options' ignored FIXME");
+}
+
+static void ccf_clearnss(adns_state ads, const char *fn, int lno, const char *buf) {
+ ads->nservers= 0;
+}
+
+static const struct configcommandinfo {
+ const char *name;
+ void (*fn)(adns_state ads, const char *fn, int lno, const char *buf);
+} configcommandinfos[]= {
+ { "nameserver", ccf_nameserver },
+ { "domain", ccf_search },
+ { "search", ccf_search },
+ { "sortlist", ccf_sortlist },
+ { "options", ccf_options },
+ { "clearnameservers", ccf_clearnss },
+ { 0 }
+};
+
+static int whitespace(int c) {
+ return c==' ' || c=='\n' || c=='\t';
+}
+
+static void readconfig(adns_state ads, const char *filename) {
+ char linebuf[2000], *p, *q;
+ FILE *file;
+ int lno, l, c;
+ const struct configcommandinfo *ccip;
+
+ file= fopen(filename,"r");
+ if (!file) {
+ if (errno == ENOENT) {
+ debug(ads,"configuration file `%s' does not exist",filename);
+ return;
+ }
+ diag(ads,"cannot open configuration file `%s': %s",filename,strerror(errno));
+ return;