We don't use ADNS anymore so get rid of the tree.

1 files changed, 0 insertions, 643 deletions

diff --git a/adns-0.6/src/setup.c b/adns-0.6/src/setup.c
deleted file mode 100644
index ac88c33..0000000
--- a/adns-0.6/src/setup.c
+++ /dev/null
@@ -1,643 +0,0 @@
-/*
- * setup.c
- * - configuration file parsing
- * - management of global state
- */
-/*
- *  This file is
- *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *
- *  It is part of adns, which is
- *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *    Copyright (C) 1999 Tony Finch <dot@dotat.at>
- *  
- *  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>
-#include <limits.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include <netdb.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include "internal.h"
-
-static void readconfig(adns_state ads, const char *filename, int warnmissing);
-
-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,-1,0,"duplicate nameserver %s ignored",inet_ntoa(addr));
-      return;
-    }
-  }
-  
-  if (ads->nservers>=MAXSERVERS) {
-    adns__diag(ads,-1,0,"too many nameservers, ignoring %s",inet_ntoa(addr));
-    return;
-  }
-
-  ss= ads->servers+ads->nservers;
-  ss->addr= addr;
-  ads->nservers++;
-}
-
-static void freesearchlist(adns_state ads) {
-  if (ads->nsearchlist) free(*ads->searchlist);
-  free(ads->searchlist);
-}
-
-static void saveerr(adns_state ads, int en) {
-  if (!ads->configerrno) ads->configerrno= en;
-}
-
-static void configparseerr(adns_state ads, const char *fn, int lno,
-			   const char *fmt, ...) {
-  va_list al;
-
-  saveerr(ads,EINVAL);
-  if (!ads->diagfile || (ads->iflags & adns_if_noerrprint)) return;
-
-  if (lno==-1) fprintf(ads->diagfile,"adns: %s: ",fn);
-  else fprintf(ads->diagfile,"adns: %s:%d: ",fn,lno);
-  va_start(al,fmt);
-  vfprintf(ads->diagfile,fmt,al);
-  va_end(al);
-  fputc('\n',ads->diagfile);
-}
-
-static int nextword(const char **bufp_io, const char **word_r, int *l_r) {
-  const char *p, *q;
-
-  p= *bufp_io;
-  while (ctype_whitespace(*p)) p++;
-  if (!*p) return 0;
-
-  q= p;
-  while (*q && !ctype_whitespace(*q)) q++;
-
-  *l_r= q-p;
-  *word_r= p;
-  *bufp_io= q;
-
-  return 1;
-}
-
-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;
-  }
-  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) {
-  const char *bufp, *word;
-  char *newchars, **newptrs, **pp;
-  int count, tl, l;
-
-  if (!buf) return;
-
-  bufp= buf;
-  count= 0;
-  tl= 0;
-  while (nextword(&bufp,&word,&l)) { count++; tl += l+1; }
-
-  newptrs= malloc(sizeof(char*)*count);  if (!newptrs) { saveerr(ads,errno); return; }
-  newchars= malloc(tl);  if (!newchars) { saveerr(ads,errno); free(newptrs); return; }
-
-  bufp= buf;
-  pp= newptrs;
-  while (nextword(&bufp,&word,&l)) {
-    *pp++= newchars;
-    memcpy(newchars,word,l);
-    newchars += l;
-    *newchars++ = 0;
-  }
-
-  freesearchlist(ads);
-  ads->nsearchlist= count;
-  ads->searchlist= newptrs;
-}
-
-static void ccf_sortlist(adns_state ads, const char *fn, int lno, const char *buf) {
-  const char *word;
-  char tbuf[200], *slash, *ep;
-  struct in_addr base, mask;
-  int l;
-  unsigned long initial, baselocal;
-
-  if (!buf) return;
-  
-  ads->nsortlist= 0;
-  while (nextword(&buf,&word,&l)) {
-    if (ads->nsortlist >= MAXSORTLIST) {
-      adns__diag(ads,-1,0,"too many sortlist entries, ignoring %.*s onwards",l,word);
-      return;
-    }
-
-    if (l >= sizeof(tbuf)) {
-      configparseerr(ads,fn,lno,"sortlist entry `%.*s' too long",l,word);
-      continue;
-    }
-    
-    memcpy(tbuf,word,l); tbuf[l]= 0;
-    slash= strchr(tbuf,'/');
-    if (slash) *slash++= 0;
-    
-    if (!inet_aton(tbuf,&base)) {
-      configparseerr(ads,fn,lno,"invalid address `%s' in sortlist",tbuf);
-      continue;
-    }
-
-    if (slash) {
-      if (strchr(slash,'.')) {
-	if (!inet_aton(slash,&mask)) {
-	  configparseerr(ads,fn,lno,"invalid mask `%s' in sortlist",slash);
-	  continue;
-	}
-	if (base.s_addr & ~mask.s_addr) {
-	  configparseerr(ads,fn,lno,
-			 "mask `%s' in sortlist overlaps address `%s'",slash,tbuf);
-	  continue;
-	}
-      } else {
-	initial= strtoul(slash,&ep,10);
-	if (*ep || initial>32) {
-	  configparseerr(ads,fn,lno,"mask length `%s' invalid",slash);
-	  continue;
-	}
-	mask.s_addr= htonl((0x0ffffffffUL) << (32-initial));
-      }
-    } else {
-      baselocal= ntohl(base.s_addr);
-      if (!baselocal & 0x080000000UL) /* class A */
-	mask.s_addr= htonl(0x0ff000000UL);
-      else if ((baselocal & 0x0c0000000UL) == 0x080000000UL)
-	mask.s_addr= htonl(0x0ffff0000UL); /* class B */
-      else if ((baselocal & 0x0f0000000UL) == 0x0e0000000UL)
-	mask.s_addr= htonl(0x0ff000000UL); /* class C */
-      else {
-	configparseerr(ads,fn,lno,
-		       "network address `%s' in sortlist is not in classed ranges,"
-		       " must specify mask explicitly", tbuf);
-	continue;
-      }
-    }
-
-    ads->sortlist[ads->nsortlist].base= base;
-    ads->sortlist[ads->nsortlist].mask= mask;
-    ads->nsortlist++;
-  }
-}
-
-static void ccf_options(adns_state ads, const char *fn, int lno, const char *buf) {
-  const char *word;
-  char *ep;
-  unsigned long v;
-  int l;
-
-  if (!buf) return;
-
-  while (nextword(&buf,&word,&l)) {
-    if (l==5 && !memcmp(word,"debug",5)) {
-      ads->iflags |= adns_if_debug;
-      continue;
-    }
-    if (l>=6 && !memcmp(word,"ndots:",6)) {
-      v= strtoul(word+6,&ep,10);
-      if (l==6 || ep != word+l || v > INT_MAX) {
-	configparseerr(ads,fn,lno,"option `%.*s' malformed or has bad value",l,word);
-	continue;
-      }
-      ads->searchndots= v;
-      continue;
-    }
-    if (l>=12 && !memcmp(word,"adns_checkc:",12)) {
-      if (!strcmp(word+12,"none")) {
-	ads->iflags &= ~adns_if_checkc_freq;
-	ads->iflags |= adns_if_checkc_entex;
-      } else if (!strcmp(word+12,"entex")) {
-	ads->iflags &= ~adns_if_checkc_freq;
-	ads->iflags |= adns_if_checkc_entex;
-      } else if (!strcmp(word+12,"freq")) {
-	ads->iflags |= adns_if_checkc_freq;
-      } else {
-	configparseerr(ads,fn,lno, "option adns_checkc has bad value `%s' "
-		       "(must be none, entex or freq", word+12);
-      }
-      continue;
-    }
-    adns__diag(ads,-1,0,"%s:%d: unknown option `%.*s'", fn,lno, l,word);
-  }
-}
-
-static void ccf_clearnss(adns_state ads, const char *fn, int lno, const char *buf) {
-  ads->nservers= 0;
-}
-
-static void ccf_include(adns_state ads, const char *fn, int lno, const char *buf) {
-  if (!*buf) {
-    configparseerr(ads,fn,lno,"`include' directive with no filename");
-    return;
-  }
-  readconfig(ads,buf,1);
-}
-
-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    },
-  { "include",           ccf_include     },
-  {  0                                   }
-};
-
-typedef union {
-  FILE *file;
-  const char *text;
-} getline_ctx;
-
-static int gl_file(adns_state ads, getline_ctx *src_io, const char *filename,
-		   int lno, char *buf, int buflen) {
-  FILE *file= src_io->file;
-  int c, i;
-  char *p;
-
-  p= buf;
-  buflen--;
-  i= 0;
-    
-  for (;;) { /* loop over chars */
-    if (i == buflen) {
-      adns__diag(ads,-1,0,"%s:%d: line too long, ignored",filename,lno);
-      goto x_badline;
-    }
-    c= getc(file);
-    if (!c) {
-      adns__diag(ads,-1,0,"%s:%d: line contains nul, ignored",filename,lno);
-      goto x_badline;
-    } else if (c == '\n') {
-      break;
-    } else if (c == EOF) {
-      if (ferror(file)) {
-	saveerr(ads,errno);
-	adns__diag(ads,-1,0,"%s:%d: read error: %s",filename,lno,strerror(errno));
-	return -1;
-      }
-      if (!i) return -1;
-      break;
-    } else {
-      *p++= c;
-      i++;
-    }
-  }
-
-  *p++= 0;
-  return i;
-
- x_badline:
-  saveerr(ads,EINVAL);
-  while ((c= getc(file)) != EOF && c != '\n');
-  return -2;
-}
-
-static int gl_text(adns_state ads, getline_ctx *src_io, const char *filename,
-		   int lno, char *buf, int buflen) {
-  const char *cp= src_io->text;
-  int l;
-
-  if (!cp || !*cp) return -1;
-
-  if (*cp == ';' || *cp == '\n') cp++;
-  l= strcspn(cp,";\n");
-  src_io->text = cp+l;
-
-  if (l >= buflen) {
-    adns__diag(ads,-1,0,"%s:%d: line too long, ignored",filename,lno);
-    saveerr(ads,EINVAL);
-    return -2;
-  }
-    
-  memcpy(buf,cp,l);
-  buf[l]= 0;
-  return l;
-}
-
-static void readconfiggeneric(adns_state ads, const char *filename,
-			      int (*getline)(adns_state ads, getline_ctx*,
-					     const char *filename, int lno,
-					     char *buf, int buflen),
-			      /* Returns >=0 for success, -1 for EOF or error
-			       * (error will have been reported), or -2 for
-			       * bad line was encountered, try again.
-			       */
-			      getline_ctx gl_ctx) {
-  char linebuf[2000], *p, *q;
-  int lno, l, dirl;
-  const struct configcommandinfo *ccip;
-
-  for (lno=1;
-       (l= getline(ads,&gl_ctx, filename,lno, linebuf,sizeof(linebuf))) != -1;
-       lno++) {
-    if (l == -2) continue;
-    while (l>0 && ctype_whitespace(linebuf[l-1])) l--;
-    linebuf[l]= 0;
-    p= linebuf;
-    while (ctype_whitespace(*p)) p++;
-    if (*p == '#' || !*p) continue;
-    q= p;
-    while (*q && !ctype_whitespace(*q)) q++;
-    dirl= q-p;
-    for (ccip=configcommandinfos;
-	 ccip->name && !(strlen(ccip->name)==dirl && !memcmp(ccip->name,p,q-p));
-	 ccip++);
-    if (!ccip->name) {
-      adns__diag(ads,-1,0,"%s:%d: unknown configuration directive `%.*s'",
-		 filename,lno,q-p,p);
-      continue;
-    }
-    while (ctype_whitespace(*q)) q++;
-    ccip->fn(ads,filename,lno,q);
-  }
-}
-
-static const char *instrum_getenv(adns_state ads, const char *envvar) {
-  const char *value;
-
-  value= getenv(envvar);
-  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;
-}
-
-static void readconfig(adns_state ads, const char *filename, int warnmissing) {
-  getline_ctx gl_ctx;
-  
-  gl_ctx.file= fopen(filename,"r");
-  if (!gl_ctx.file) {
-    if (errno == ENOENT) {
-      if (warnmissing)
-	adns__debug(ads,-1,0,"configuration file `%s' does not exist",filename);
-      return;
-    }
-    saveerr(ads,errno);
-    adns__diag(ads,-1,0,"cannot open configuration file `%s': %s",
-	       filename,strerror(errno));
-    return;
-  }
-
-  readconfiggeneric(ads,filename,gl_file,gl_ctx);
-  
-  fclose(gl_ctx.file);
-}
-
-static void readconfigtext(adns_state ads, const char *text, const char *showname) {
-  getline_ctx gl_ctx;
-  
-  gl_ctx.text= text;
-  readconfiggeneric(ads,showname,gl_text,gl_ctx);
-}
-  
-static void readconfigenv(adns_state ads, const char *envvar) {
-  const char *filename;
-
-  if (ads->iflags & adns_if_noenv) {
-    adns__debug(ads,-1,0,"not checking environment variable `%s'",envvar);
-    return;
-  }
-  filename= instrum_getenv(ads,envvar);
-  if (filename) readconfig(ads,filename,1);
-}
-
-static void readconfigenvtext(adns_state ads, const char *envvar) {
-  const char *textdata;
-
-  if (ads->iflags & adns_if_noenv) {
-    adns__debug(ads,-1,0,"not checking environment variable `%s'",envvar);
-    return;
-  }
-  textdata= instrum_getenv(ads,envvar);
-  if (textdata) readconfigtext(ads,textdata,envvar);
-}
-
-
-int adns__setnonblock(adns_state ads, int fd) {
-  int r;
-  
-  r= fcntl(fd,F_GETFL,0); if (r<0) return errno;
-  r |= O_NONBLOCK;
-  r= fcntl(fd,F_SETFL,r); if (r<0) return errno;
-  return 0;
-}
-
-static int init_begin(adns_state *ads_r, adns_initflags flags, FILE *diagfile) {
-  adns_state ads;
-  
-  ads= malloc(sizeof(*ads)); if (!ads) return errno;
-
-  ads->iflags= flags;
-  ads->diagfile= diagfile;
-  ads->configerrno= 0;
-  LIST_INIT(ads->udpw);
-  LIST_INIT(ads->tcpw);
-  LIST_INIT(ads->childw);
-  LIST_INIT(ads->output);
-  ads->forallnext= 0;
-  ads->nextid= 0x311f;
-  ads->udpsocket= ads->tcpsocket= -1;
-  adns__vbuf_init(&ads->tcpsend);
-  adns__vbuf_init(&ads->tcprecv);
-  ads->tcprecv_skip= 0;
-  ads->nservers= ads->nsortlist= ads->nsearchlist= ads->tcpserver= 0;
-  ads->searchndots= 1;
-  ads->tcpstate= server_disconnected;
-  timerclear(&ads->tcptimeout);
-  ads->searchlist= 0;
-
-  *ads_r= ads;
-  return 0;
-}
-
-static int init_finish(adns_state ads) {
-  struct in_addr ia;
-  struct protoent *proto;
-  int r;
-  
-  if (!ads->nservers) {
-    if (ads->diagfile && ads->iflags & adns_if_debug)
-      fprintf(ads->diagfile,"adns: no nameservers, using localhost\n");
-    ia.s_addr= htonl(INADDR_LOOPBACK);
-    addserver(ads,ia);
-  }
-
-  proto= getprotobyname("udp"); if (!proto) { r= ENOPROTOOPT; goto x_free; }
-  ads->udpsocket= socket(AF_INET,SOCK_DGRAM,proto->p_proto);
-  if (ads->udpsocket<0) { r= errno; goto x_free; }
-
-  r= adns__setnonblock(ads,ads->udpsocket);
-  if (r) { r= errno; goto x_closeudp; }
-  
-  return 0;
-
- x_closeudp:
-  close(ads->udpsocket);
- x_free:
-  free(ads);
-  return r;
-}
-
-static void init_abort(adns_state ads) {
-  if (ads->nsearchlist) {
-    free(ads->searchlist[0]);
-    free(ads->searchlist);
-  }
-  free(ads);
-}
-
-int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) {
-  adns_state ads;
-  const char *res_options, *adns_res_options;
-  int r;
-  
-  r= init_begin(&ads, flags, diagfile ? diagfile : stderr);
-  if (r) return r;
-  
-  res_options= instrum_getenv(ads,"RES_OPTIONS");
-  adns_res_options= instrum_getenv(ads,"ADNS_RES_OPTIONS");
-  ccf_options(ads,"RES_OPTIONS",-1,res_options);
-  ccf_options(ads,"ADNS_RES_OPTIONS",-1,adns_res_options);
-
-  readconfig(ads,"/etc/resolv.conf",1);
-  readconfig(ads,"/etc/resolv-adns.conf",0);
-  readconfigenv(ads,"RES_CONF");
-  readconfigenv(ads,"ADNS_RES_CONF");
-
-  readconfigenvtext(ads,"RES_CONF_TEXT");
-  readconfigenvtext(ads,"ADNS_RES_CONF_TEXT");
-
-  ccf_options(ads,"RES_OPTIONS",-1,res_options);
-  ccf_options(ads,"ADNS_RES_OPTIONS",-1,adns_res_options);
-
-  ccf_search(ads,"LOCALDOMAIN",-1,instrum_getenv(ads,"LOCALDOMAIN"));
-  ccf_search(ads,"ADNS_LOCALDOMAIN",-1,instrum_getenv(ads,"ADNS_LOCALDOMAIN"));
-
-  if (ads->configerrno && ads->configerrno != EINVAL) {
-    r= ads->configerrno;
-    init_abort(ads);
-    return r;
-  }
-
-  r= init_finish(ads);
-  if (r) return r;
-
-  adns__consistency(ads,0,cc_entex);
-  *ads_r= ads;
-  return 0;
-}
-
-int adns_init_strcfg(adns_state *ads_r, adns_initflags flags,
-		     FILE *diagfile, const char *configtext) {
-  adns_state ads;
-  int r;
-
-  r= init_begin(&ads, flags, diagfile);  if (r) return r;
-
-  readconfigtext(ads,configtext,"<supplied configuration text>");
-  if (ads->configerrno) {
-    r= ads->configerrno;
-    init_abort(ads);
-    return r;
-  }
-
-  r= init_finish(ads);  if (r) return r;
-  adns__consistency(ads,0,cc_entex);
-  *ads_r= ads;
-  return 0;
-}
-
-
-void adns_finish(adns_state ads) {
-  adns__consistency(ads,0,cc_entex);
-  for (;;) {
-    if (ads->udpw.head) adns_cancel(ads->udpw.head);
-    else if (ads->tcpw.head) adns_cancel(ads->tcpw.head);
-    else if (ads->childw.head) adns_cancel(ads->childw.head);
-    else if (ads->output.head) adns_cancel(ads->output.head);
-    else break;
-  }
-  close(ads->udpsocket);
-  if (ads->tcpsocket >= 0) close(ads->tcpsocket);
-  adns__vbuf_free(&ads->tcpsend);
-  adns__vbuf_free(&ads->tcprecv);
-  freesearchlist(ads);
-  free(ads);
-}
-
-void adns_forallqueries_begin(adns_state ads) {
-  adns__consistency(ads,0,cc_entex);
-  ads->forallnext=
-    ads->udpw.head ? ads->udpw.head :
-    ads->tcpw.head ? ads->tcpw.head :
-    ads->childw.head ? ads->childw.head :
-    ads->output.head;
-}
-  
-adns_query adns_forallqueries_next(adns_state ads, void **context_r) {
-  adns_query qu, nqu;
-
-  adns__consistency(ads,0,cc_entex);
-  nqu= ads->forallnext;
-  for (;;) {
-    qu= nqu;
-    if (!qu) return 0;
-    if (qu->next) {
-      nqu= qu->next;
-    } else if (qu == ads->udpw.tail) {
-      nqu=
-	ads->tcpw.head ? ads->tcpw.head :
-	ads->childw.head ? ads->childw.head :
-	ads->output.head;
-    } else if (qu == ads->tcpw.tail) {
-      nqu=
-	ads->childw.head ? ads->childw.head :
-	ads->output.head;
-    } else if (qu == ads->childw.tail) {
-      nqu= ads->output.head;
-    } else {
-      nqu= 0;
-    }
-    if (!qu->parent) break;
-  }
-  ads->forallnext= nqu;
-  if (context_r) *context_r= qu->ctx.ext;
-  return qu;
-}