X-Git-Url: https://git.distorted.org.uk/~mdw/adns/blobdiff_plain/d05cc33061a2dc90fe499e72fb50b766588891f3..11c8bf9bc50213e3774f8367ce3d5b17b2f95c49:/src/setup.c

diff --git a/src/setup.c b/src/setup.c
index 463779d..3852603 100644
--- a/src/setup.c
+++ b/src/setup.c
@@ -1,4 +1,25 @@
-/**/
+/*
+ * setup.c
+ * - configuration file parsing
+ * - management of global state
+ */
+/*
+ *  This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson
+ *  
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software Foundation,
+ *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 
+ */
 
 #include <stdlib.h>
 #include <errno.h>
@@ -11,93 +32,19 @@
 
 #include "internal.h"
 
-void adns__vdiag(adns_state ads, const char *pfx, adns_initflags prevent,
-		 int serv, const char *fmt, va_list al) {
-  if (!(ads->iflags & adns_if_debug) && (!prevent || (ads->iflags & prevent))) return;
-  if (serv>=0) {
-    fprintf(stderr,"adns%s: nameserver %s: ",pfx,inet_ntoa(ads->servers[serv].addr));
-  } else {
-    fprintf(stderr,"adns%s: ",pfx);
-  }
-  vfprintf(stderr,fmt,al);
-  fputc('\n',stderr);
-}
-
-void adns__debug(adns_state ads, int serv, const char *fmt, ...) {
-  va_list al;
-
-  va_start(al,fmt);
-  adns__vdiag(ads," debug",0,serv,fmt,al);
-  va_end(al);
-}
-
-void adns__warn(adns_state ads, int serv, const char *fmt, ...) {
-  va_list al;
-
-  va_start(al,fmt);
-  adns__vdiag(ads," warning",adns_if_noerrprint|adns_if_noserverwarn,serv,fmt,al);
-  va_end(al);
-}
-
-void adns__diag(adns_state ads, int serv, const char *fmt, ...) {
-  va_list al;
-
-  va_start(al,fmt);
-  adns__vdiag(ads,"",adns_if_noerrprint,serv,fmt,al);
-  va_end(al);
-}
-
-  
-void adns__vbuf_init(vbuf *vb) {
-  vb->used= vb->avail= 0; vb->buf= 0;
-}
-
-int adns__vbuf_ensure(vbuf *vb, int want) {
-  void *nb;
-  
-  if (vb->avail >= want) return 1;
-  nb= realloc(vb->buf,want); if (!nb) return 0;
-  vb->buf= nb;
-  vb->avail= want;
-  return 1;
-}
-  
-void adns__vbuf_appendq(vbuf *vb, const byte *data, int len) {
-  memcpy(vb->buf+vb->used,data,len);
-  vb->used+= len;
-}
-
-int adns__vbuf_append(vbuf *vb, const byte *data, int len) {
-  int newlen;
-  void *nb;
-
-  newlen= vb->used+len;
-  if (vb->avail < newlen) {
-    newlen <<= 1;
-    nb= realloc(vb->buf,newlen);
-    if (!nb) { newlen >>= 1; nb= realloc(vb->buf,newlen); }
-    if (!nb) return 0;
-    vb->buf= nb;
-    vb->avail= newlen;
-  }
-  adns__vbuf_appendq(vb,data,len);
-  return 1;
-}
-
-
 static void addserver(adns_state ads, struct in_addr addr) {
   int i;
   struct server *ss;
   
   for (i=0; i<ads->nservers; i++) {
     if (ads->servers[i].addr.s_addr == addr.s_addr) {
-      adns__debug(ads,-1,"duplicate nameserver %s ignored",inet_ntoa(addr));
+      adns__debug(ads,-1,0,"duplicate nameserver %s ignored",inet_ntoa(addr));
       return;
     }
   }
   
   if (ads->nservers>=MAXSERVERS) {
-    adns__diag(ads,-1,"too many nameservers, ignoring %s",inet_ntoa(addr));
+    adns__diag(ads,-1,0,"too many nameservers, ignoring %s",inet_ntoa(addr));
     return;
   }
 
@@ -126,22 +73,22 @@ static void ccf_nameserver(adns_state ads, const char *fn, int lno, const char *
     configparseerr(ads,fn,lno,"invalid nameserver address `%s'",buf);
     return;
   }
-  adns__debug(ads,-1,"using nameserver %s",inet_ntoa(ia));
+  adns__debug(ads,-1,0,"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;
-  adns__diag(ads,-1,"warning - `search' ignored FIXME");
+  adns__diag(ads,-1,0,"warning - `search' ignored fixme");
 }
 
 static void ccf_sortlist(adns_state ads, const char *fn, int lno, const char *buf) {
-  adns__diag(ads,-1,"warning - `sortlist' ignored FIXME");
+  adns__diag(ads,-1,0,"warning - `sortlist' ignored fixme");
 }
 
 static void ccf_options(adns_state ads, const char *fn, int lno, const char *buf) {
   if (!buf) return;
-  adns__diag(ads,-1,"warning - `options' ignored FIXME");
+  adns__diag(ads,-1,0,"warning - `options' ignored fixme");
 }
 
 static void ccf_clearnss(adns_state ads, const char *fn, int lno, const char *buf) {
@@ -170,10 +117,10 @@ static void readconfig(adns_state ads, const char *filename) {
   file= fopen(filename,"r");
   if (!file) {
     if (errno == ENOENT) {
-      adns__debug(ads,-1,"configuration file `%s' does not exist",filename);
+      adns__debug(ads,-1,0,"configuration file `%s' does not exist",filename);
       return;
     }
-    adns__diag(ads,-1,"cannot open configuration file `%s': %s",
+    adns__diag(ads,-1,0,"cannot open configuration file `%s': %s",
 	       filename,strerror(errno));
     return;
   }
@@ -182,7 +129,7 @@ static void readconfig(adns_state ads, const char *filename) {
     l= strlen(linebuf);
     if (!l) continue;
     if (linebuf[l-1] != '\n' && !feof(file)) {
-      adns__diag(ads,-1,"%s:%d: line too long",filename,lno);
+      adns__diag(ads,-1,0,"%s:%d: line too long",filename,lno);
       while ((c= getc(file)) != EOF && c != '\n') { }
       if (c == EOF) break;
       continue;
@@ -198,7 +145,7 @@ static void readconfig(adns_state ads, const char *filename) {
 	 ccip->name && strncmp(ccip->name,p,q-p);
 	 ccip++);
     if (!ccip->name) {
-      adns__diag(ads,-1,"%s:%d: unknown configuration directive `%.*s'",
+      adns__diag(ads,-1,0,"%s:%d: unknown configuration directive `%.*s'",
 		 filename,lno,q-p,p);
       continue;
     }
@@ -206,7 +153,7 @@ static void readconfig(adns_state ads, const char *filename) {
     ccip->fn(ads,filename,lno,q);
   }
   if (ferror(file)) {
-    adns__diag(ads,-1,"%s:%d: read error: %s",filename,lno,strerror(errno));
+    adns__diag(ads,-1,0,"%s:%d: read error: %s",filename,lno,strerror(errno));
   }
   fclose(file);
 }
@@ -215,8 +162,8 @@ static const char *instrum_getenv(adns_state ads, const char *envvar) {
   const char *value;
 
   value= getenv(envvar);
-  if (!value) adns__debug(ads,-1,"environment variable %s not set",envvar);
-  else adns__debug(ads,-1,"environment variable %s set to `%s'",envvar,value);
+  if (!value) adns__debug(ads,-1,0,"environment variable %s not set",envvar);
+  else adns__debug(ads,-1,0,"environment variable %s set to `%s'",envvar,value);
   return value;
 }
 
@@ -224,7 +171,7 @@ static void readconfigenv(adns_state ads, const char *envvar) {
   const char *filename;
 
   if (ads->iflags & adns_if_noenv) {
-    adns__debug(ads,-1,"not checking environment variable `%s'",envvar);
+    adns__debug(ads,-1,0,"not checking environment variable `%s'",envvar);
     return;
   }
   filename= instrum_getenv(ads,envvar);
@@ -255,7 +202,6 @@ int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) {
   LIST_INIT(ads->output);
   ads->nextid= 0x311f;
   ads->udpsocket= ads->tcpsocket= -1;
-  adns__vbuf_init(&ads->rqbuf);
   adns__vbuf_init(&ads->tcpsend);
   adns__vbuf_init(&ads->tcprecv);
   ads->nservers= ads->tcpserver= 0;
@@ -289,16 +235,19 @@ int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) {
   ads->udpsocket= socket(AF_INET,SOCK_DGRAM,proto->p_proto);
   if (ads->udpsocket<0) { r= errno; goto x_free; }
 
-  /*fixme: nonblock */
+  r= adns__setnonblock(ads,ads->udpsocket);
+  if (r) { r= errno; goto x_closeudp; }
   
   *ads_r= ads;
   return 0;
 
+ x_closeudp:
+  close(ads->udpsocket);
  x_free:
   free(ads);
   return r;
 }
 
 int adns_finish(adns_state ads) {
-  abort(); /* FIXME */
+  abort(); /* fixme */
 }