X-Git-Url: https://git.distorted.org.uk/~mdw/adns/blobdiff_plain/9ae68b5e4c38b8822dc10b78ff9b26472d83427d..8a53cf7f63a4decacd4b293b32167a23cdeea412:/src/setup.c diff --git a/src/setup.c b/src/setup.c index 38be621..61f4f67 100644 --- a/src/setup.c +++ b/src/setup.c @@ -4,12 +4,11 @@ * - management of global state */ /* - * This file is - * Copyright (C) 1997-1999 Ian Jackson - * - * It is part of adns, which is - * Copyright (C) 1997-2000 Ian Jackson - * Copyright (C) 1999-2000 Tony Finch + * This file is part of adns, which is + * Copyright (C) 1997-2000,2003,2006 Ian Jackson + * Copyright (C) 1999-2000,2003,2006 Tony Finch + * Copyright (C) 1991 Massachusetts Institute of Technology + * (See the file INSTALL for full details.) * * 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 @@ -77,14 +76,14 @@ static void configparseerr(adns_state ads, const char *fn, int lno, va_list al; saveerr(ads,EINVAL); - if (!ads->diagfile || (ads->iflags & adns_if_noerrprint)) return; + if (!ads->logfn || (ads->iflags & adns_if_noerrprint)) return; - if (lno==-1) fprintf(ads->diagfile,"adns: %s: ",fn); - else fprintf(ads->diagfile,"adns: %s:%d: ",fn,lno); + if (lno==-1) adns__lprintf(ads,"adns: %s: ",fn); + else adns__lprintf(ads,"adns: %s:%d: ",fn,lno); va_start(al,fmt); - vfprintf(ads->diagfile,fmt,al); + adns__vlprintf(ads,fmt,al); va_end(al); - fputc('\n',ads->diagfile); + adns__lprintf(ads,"\n"); } static int nextword(const char **bufp_io, const char **word_r, int *l_r) { @@ -153,9 +152,11 @@ 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; + const char *maskwhat; + struct sortlist *sl; int l; - unsigned long initial, baselocal; + const afinfo *ai; + int initial = -1; if (!buf) return; @@ -175,49 +176,59 @@ static void ccf_sortlist(adns_state ads, const char *fn, memcpy(tbuf,word,l); tbuf[l]= 0; slash= strchr(tbuf,'/'); if (slash) *slash++= 0; + + sl= &ads->sortlist[ads->nsortlist]; + + if (strchr(tbuf, ':')) + ai= &adns__inet6_afinfo; + else + ai= &adns__inet_afinfo; - if (!inet_aton(tbuf,&base)) { + if (!inet_pton(ai->af, tbuf, &sl->base)) { configparseerr(ads,fn,lno,"invalid address `%s' in sortlist",tbuf); continue; } if (slash) { - if (strchr(slash,'.')) { - if (!inet_aton(slash,&mask)) { + if (strchr(slash,ai->delim)) { + maskwhat = "mask"; + if (!inet_pton(ai->af,slash,&sl->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 { + maskwhat = "prefix length"; initial= strtoul(slash,&ep,10); - if (*ep || initial>32) { + if (*ep || initial>ai->width) { configparseerr(ads,fn,lno,"mask length `%s' invalid",slash); continue; } - mask.s_addr= htonl((0x0ffffffffUL) << (32-initial)); + ai->prefix_mask(initial, &sl->mask); } } 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 { + maskwhat = "implied prefix length"; + initial = ai->guess_len(&sl->base); + if (initial < 0) { configparseerr(ads,fn,lno, "network address `%s'" " in sortlist is not in classed ranges," " must specify mask explicitly", tbuf); continue; } + ai->prefix_mask(initial, &sl->mask); + } + + if (!ai->matchp(&sl->base, &sl->base, &sl->mask)) { + if (initial >= 0) { + configparseerr(ads,fn,lno, "%s %d in sortlist" + " overlaps address `%s'",maskwhat,initial,tbuf); + } else { + configparseerr(ads,fn,lno, "%s `%s' in sortlist" + " overlaps address `%s'",maskwhat,slash,tbuf); + } + continue; } - ads->sortlist[ads->nsortlist].base= base; - ads->sortlist[ads->nsortlist].mask= mask; + sl->ai = ai; ads->nsortlist++; } } @@ -426,7 +437,7 @@ static void readconfiggeneric(adns_state ads, const char *filename, ccip++); if (!ccip->name) { adns__diag(ads,-1,0,"%s:%d: unknown configuration directive `%.*s'", - filename,lno,q-p,p); + filename,lno,(int)(q-p),p); continue; } while (ctype_whitespace(*q)) q++; @@ -507,13 +518,15 @@ int adns__setnonblock(adns_state ads, int fd) { } static int init_begin(adns_state *ads_r, adns_initflags flags, - FILE *diagfile) { + adns_logcallbackfn *logfn, void *logfndata) { adns_state ads; + pid_t pid; ads= malloc(sizeof(*ads)); if (!ads) return errno; ads->iflags= flags; - ads->diagfile= diagfile; + ads->logfn= logfn; + ads->logfndata= logfndata; ads->configerrno= 0; LIST_INIT(ads->udpw); LIST_INIT(ads->tcpw); @@ -531,6 +544,11 @@ static int init_begin(adns_state *ads_r, adns_initflags flags, timerclear(&ads->tcptimeout); ads->searchlist= 0; + pid= getpid(); + ads->rand48xsubi[0]= pid; + ads->rand48xsubi[1]= (unsigned long)pid >> 16; + ads->rand48xsubi[2]= pid ^ ((unsigned long)pid >> 16); + *ads_r= ads; return 0; } @@ -541,8 +559,8 @@ static int init_finish(adns_state ads) { int r; if (!ads->nservers) { - if (ads->diagfile && ads->iflags & adns_if_debug) - fprintf(ads->diagfile,"adns: no nameservers, using localhost\n"); + if (ads->logfn && ads->iflags & adns_if_debug) + adns__lprintf(ads,"adns: no nameservers, using localhost\n"); ia.s_addr= htonl(INADDR_LOOPBACK); addserver(ads,ia); } @@ -571,12 +589,18 @@ static void init_abort(adns_state ads) { free(ads); } -int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) { +static void logfn_file(adns_state ads, void *logfndata, + const char *fmt, va_list al) { + vfprintf(logfndata,fmt,al); +} + +static int init_files(adns_state *ads_r, adns_initflags flags, + adns_logcallbackfn *logfn, void *logfndata) { adns_state ads; const char *res_options, *adns_res_options; int r; - r= init_begin(&ads, flags, diagfile ? diagfile : stderr); + r= init_begin(&ads, flags, logfn, logfndata); if (r) return r; res_options= instrum_getenv(ads,"RES_OPTIONS"); @@ -612,12 +636,18 @@ int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) { return 0; } -int adns_init_strcfg(adns_state *ads_r, adns_initflags flags, - FILE *diagfile, const char *configtext) { +int adns_init(adns_state *ads_r, adns_initflags flags, FILE *diagfile) { + return init_files(ads_r, flags, logfn_file, diagfile ? diagfile : stderr); +} + +static int init_strcfg(adns_state *ads_r, adns_initflags flags, + adns_logcallbackfn *logfn, void *logfndata, + const char *configtext) { adns_state ads; int r; - r= init_begin(&ads, flags, diagfile); if (r) return r; + r= init_begin(&ads, flags, logfn, logfndata); + if (r) return r; readconfigtext(ads,configtext,""); if (ads->configerrno) { @@ -632,6 +662,24 @@ int adns_init_strcfg(adns_state *ads_r, adns_initflags flags, return 0; } +int adns_init_strcfg(adns_state *ads_r, adns_initflags flags, + FILE *diagfile, const char *configtext) { + return init_strcfg(ads_r, flags, + diagfile ? logfn_file : 0, diagfile, + configtext); +} + +int adns_init_logfn(adns_state *newstate_r, adns_initflags flags, + const char *configtext /*0=>use default config files*/, + adns_logcallbackfn *logfn /*0=>logfndata is a FILE* */, + void *logfndata /*0 with logfn==0 => discard*/) { + if (!logfn && logfndata) + logfn= logfn_file; + if (configtext) + return init_strcfg(newstate_r, flags, logfn, logfndata, configtext); + else + return init_files(newstate_r, flags, logfn, logfndata); +} void adns_finish(adns_state ads) { adns__consistency(ads,0,cc_entex);