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File jumbo-p13.patch of Package ixjbdns
diff -U4 -r -N djbdns-1.05/CHANGES djbdns-1.05-p13/CHANGES --- djbdns-1.05/CHANGES Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/CHANGES Wed Oct 3 21:16:44 2001 @@ -373,4 +373,6 @@ 20010211 ui: servers print starting message. internal: some respond() declarations. version: djbdns 1.05. +20010313 + patch: to dump and reload the cache diff -U4 -r -N djbdns-1.05/Makefile djbdns-1.05-p13/Makefile --- djbdns-1.05/Makefile Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/Makefile Sat Oct 6 20:24:30 2001 @@ -3,8 +3,10 @@ SHELL=/bin/sh default: it +include Makefile.sig + alloc.a: \ makelib alloc.o alloc_re.o getln.o getln2.o stralloc_cat.o \ stralloc_catb.o stralloc_cats.o stralloc_copy.o stralloc_eady.o \ stralloc_num.o stralloc_opyb.o stralloc_opys.o stralloc_pend.o @@ -148,15 +150,15 @@ ./compile byte_zero.c cache.o: \ compile cache.c alloc.h byte.h uint32.h exit.h tai.h uint64.h cache.h \ -uint32.h uint64.h +uint32.h uint64.h env.h error.h open.h openreadclose.h ./compile cache.c cachetest: \ -load cachetest.o cache.o libtai.a buffer.a alloc.a unix.a byte.a - ./load cachetest cache.o libtai.a buffer.a alloc.a unix.a \ - byte.a +load cachetest.o cache.o libtai.a buffer.a alloc.a unix.a byte.a env.a + ./load cachetest cache.o libtai.a buffer.a unix.a env.a \ + alloc.a byte.a dns.a cachetest.o: \ compile cachetest.c buffer.h exit.h cache.h uint32.h uint64.h str.h ./compile cachetest.c @@ -227,13 +229,13 @@ dns.a: \ makelib dns_dfd.o dns_domain.o dns_dtda.o dns_ip.o dns_ipq.o dns_mx.o \ dns_name.o dns_nd.o dns_packet.o dns_random.o dns_rcip.o dns_rcrw.o \ -dns_resolve.o dns_sortip.o dns_transmit.o dns_txt.o +dns_resolve.o dns_rotateip.o dns_sortip.o dns_transmit.o dns_txt.o ./makelib dns.a dns_dfd.o dns_domain.o dns_dtda.o dns_ip.o \ dns_ipq.o dns_mx.o dns_name.o dns_nd.o dns_packet.o \ dns_random.o dns_rcip.o dns_rcrw.o dns_resolve.o \ - dns_sortip.o dns_transmit.o dns_txt.o + dns_rotateip.o dns_sortip.o dns_transmit.o dns_txt.o dns_dfd.o: \ compile dns_dfd.c error.h alloc.h byte.h dns.h stralloc.h gen_alloc.h \ iopause.h taia.h tai.h uint64.h taia.h @@ -300,8 +302,12 @@ compile dns_resolve.c iopause.h taia.h tai.h uint64.h taia.h byte.h \ dns.h stralloc.h gen_alloc.h iopause.h taia.h ./compile dns_resolve.c +dns_rotateip.o: \ +compile dns_rotateip.c byte.h dns.h stralloc.h gen_alloc.h + ./compile dns_rotateip.c + dns_sortip.o: \ compile dns_sortip.c byte.h dns.h stralloc.h gen_alloc.h iopause.h \ taia.h tai.h uint64.h taia.h ./compile dns_sortip.c @@ -319,12 +325,12 @@ dnscache: \ load dnscache.o droproot.o okclient.o log.o cache.o query.o \ response.o dd.o roots.o iopause.o prot.o dns.a env.a alloc.a buffer.a \ -libtai.a unix.a byte.a socket.lib +libtai.a unix.a byte.a sig.a socket.lib ./load dnscache droproot.o okclient.o log.o cache.o \ query.o response.o dd.o roots.o iopause.o prot.o dns.a \ - env.a alloc.a buffer.a libtai.a unix.a byte.a `cat \ + env.a alloc.a buffer.a libtai.a unix.a byte.a sig.a `cat \ socket.lib` dnscache-conf: \ load dnscache-conf.o generic-conf.o auto_home.o libtai.a buffer.a \ @@ -625,11 +631,11 @@ iopause.h taia.h tai.h uint64.h taia.h uint16.h parsetype.h ./compile parsetype.c pickdns: \ -load pickdns.o server.o response.o droproot.o qlog.o prot.o dns.a \ +load pickdns.o server.o iopause.o response.o droproot.o qlog.o prot.o dns.a \ env.a libtai.a cdb.a alloc.a buffer.a unix.a byte.a socket.lib - ./load pickdns server.o response.o droproot.o qlog.o \ + ./load pickdns server.o iopause.o response.o droproot.o qlog.o \ prot.o dns.a env.a libtai.a cdb.a alloc.a buffer.a unix.a \ byte.a `cat socket.lib` pickdns-conf: \ @@ -703,11 +709,11 @@ gen_alloc.h iopause.h taia.h tai.h uint64.h taia.h ./compile random-ip.c rbldns: \ -load rbldns.o server.o response.o dd.o droproot.o qlog.o prot.o dns.a \ +load rbldns.o server.o iopause.o response.o dd.o droproot.o qlog.o prot.o dns.a \ env.a libtai.a cdb.a alloc.a buffer.a unix.a byte.a socket.lib - ./load rbldns server.o response.o dd.o droproot.o qlog.o \ + ./load rbldns server.o iopause.o response.o dd.o droproot.o qlog.o \ prot.o dns.a env.a libtai.a cdb.a alloc.a buffer.a unix.a \ byte.a `cat socket.lib` rbldns-conf: \ @@ -773,9 +779,9 @@ server.o: \ compile server.c byte.h case.h env.h buffer.h strerr.h ip4.h uint16.h \ ndelay.h socket.h uint16.h droproot.h qlog.h uint16.h response.h \ uint32.h dns.h stralloc.h gen_alloc.h iopause.h taia.h tai.h uint64.h \ -taia.h +taia.h iopause.h alloc.h ./compile server.c setup: \ it install @@ -978,12 +984,12 @@ timeoutwrite.h ./compile timeoutwrite.c tinydns: \ -load tinydns.o server.o droproot.o tdlookup.o response.o qlog.o \ +load tinydns.o server.o iopause.o droproot.o tdlookup.o response.o qlog.o \ prot.o dns.a libtai.a env.a cdb.a alloc.a buffer.a unix.a byte.a \ socket.lib - ./load tinydns server.o droproot.o tdlookup.o response.o \ + ./load tinydns server.o iopause.o droproot.o tdlookup.o response.o \ qlog.o prot.o dns.a libtai.a env.a cdb.a alloc.a buffer.a \ unix.a byte.a `cat socket.lib` tinydns-conf: \ @@ -1083,12 +1089,12 @@ compile utime.c scan.h exit.h ./compile utime.c walldns: \ -load walldns.o server.o response.o droproot.o qlog.o prot.o dd.o \ +load walldns.o server.o iopause.o response.o droproot.o qlog.o prot.o dd.o \ dns.a env.a cdb.a alloc.a buffer.a unix.a byte.a socket.lib - ./load walldns server.o response.o droproot.o qlog.o \ - prot.o dd.o dns.a env.a cdb.a alloc.a buffer.a unix.a \ + ./load walldns server.o iopause.o response.o droproot.o qlog.o \ + prot.o dd.o dns.a libtai.a env.a cdb.a alloc.a buffer.a unix.a \ byte.a `cat socket.lib` walldns-conf: \ load walldns-conf.o generic-conf.o auto_home.o buffer.a unix.a byte.a diff -U4 -r -N djbdns-1.05/Makefile.sig djbdns-1.05-p13/Makefile.sig --- djbdns-1.05/Makefile.sig Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/Makefile.sig Wed Oct 3 21:16:44 2001 @@ -0,0 +1,27 @@ +sig.o: \ +compile sig.c sig.h + ./compile sig.c + +sig_block.o: \ +compile sig_block.c sig.h hassgprm.h + ./compile sig_block.c + +sig_catch.o: \ +compile sig_catch.c sig.h hassgact.h + ./compile sig_catch.c + +sig_pause.o: \ +compile sig_pause.c sig.h hassgprm.h + ./compile sig_pause.c + +sig.a: \ +makelib sig.o sig_block.o sig_catch.o sig_pause.o + ./makelib sig.a sig.o sig_block.o sig_catch.o sig_pause.o + +hassgact.h: \ +choose compile load trysgact.c hassgact.h1 hassgact.h2 + ./choose cl trysgact hassgact.h1 hassgact.h2 > hassgact.h + +hassgprm.h: \ +choose compile load trysgprm.c hassgprm.h1 hassgprm.h2 + ./choose cl trysgprm hassgprm.h1 hassgprm.h2 > hassgprm.h diff -U4 -r -N djbdns-1.05/README djbdns-1.05-p13/README --- djbdns-1.05/README Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/README Wed Oct 3 21:16:44 2001 @@ -1,4 +1,10 @@ +patchlevel fg1 +20010313 +by Florent Guillaume <florent.guillaume@mail.com> +patch home page: http://mapage.noos.fr/efgeor/djbdns/index.html +Uses parts of Felix von Leitner's djb-0.5.2 package: http://www.fefe.de/djb/ + djbdns 1.05 20010211 Copyright 2001 D. J. Bernstein diff -U4 -r -N djbdns-1.05/SYSDEPS djbdns-1.05-p13/SYSDEPS --- djbdns-1.05/SYSDEPS Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/SYSDEPS Wed Oct 3 21:16:44 2001 @@ -6,5 +6,7 @@ iopause.h direntry.h hasshsgr.h hasdevtcp.h +hassgact.h +hassgprm.h socket.lib diff -U4 -r -N djbdns-1.05/TARGETS djbdns-1.05-p13/TARGETS --- djbdns-1.05/TARGETS Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/TARGETS Wed Oct 3 21:16:44 2001 @@ -213,4 +213,11 @@ instcheck it setup check +sig.o +sig.a +sig_catch.o +sig_block.o +hassgact.h +hassgprm.h +sig_pause.o diff -U4 -r -N djbdns-1.05/VERSION djbdns-1.05-p13/VERSION --- djbdns-1.05/VERSION Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/VERSION Wed Oct 3 21:16:44 2001 @@ -1 +1 @@ -djbdns 1.05 +djbdns 1.05-fg1 diff -U4 -r -N djbdns-1.05/auto_home.c djbdns-1.05-p13/auto_home.c --- djbdns-1.05/auto_home.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/auto_home.c Wed Oct 3 22:15:33 2001 @@ -0,0 +1,3 @@ +const char auto_home[] = "\ +\057\165\163\162\057\154\157\143\141\154\ +"; diff -U4 -r -N djbdns-1.05/axfr-get.c djbdns-1.05-p13/axfr-get.c --- djbdns-1.05/axfr-get.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/axfr-get.c Wed Oct 3 00:58:40 2001 @@ -208,15 +208,43 @@ if (!dns_domain_todot_cat(&line,d1)) return 0; if (!stralloc_cats(&line,".:")) return 0; if (!stralloc_catulong0(&line,dist,0)) return 0; } + else if (byte_equal(data,2,DNS_T_SRV)) { + uint16 dist, weight, port; + if (!stralloc_copys(&line,"S")) return 0; + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,"::")) return 0; + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&dist); + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&weight); + pos = x_copy(buf,len,pos,data,2); + uint16_unpack_big(data,&port); + x_getname(buf,len,pos,&d1); + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,".:")) return 0; + if (!stralloc_catulong0(&line,dist,0)) return 0; + if (!stralloc_cats(&line,":")) return 0; + if (!stralloc_catulong0(&line,weight,0)) return 0; + if (!stralloc_cats(&line,":")) return 0; + if (!stralloc_catulong0(&line,port,0)) return 0; + } else if (byte_equal(data,2,DNS_T_A) && (dlen == 4)) { char ipstr[IP4_FMT]; if (!stralloc_copys(&line,"+")) return 0; if (!dns_domain_todot_cat(&line,d1)) return 0; if (!stralloc_cats(&line,":")) return 0; x_copy(buf,len,pos,data,4); if (!stralloc_catb(&line,ipstr,ip4_fmt(ipstr,data))) return 0; + } + else if (byte_equal(data,2,DNS_T_PTR)) { + if (!stralloc_copys(&line,"^")) return 0; + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,":")) return 0; + x_getname(buf,len,pos,&d1); + if (!dns_domain_todot_cat(&line,d1)) return 0; + if (!stralloc_cats(&line,".")) return 0; } else { unsigned char ch; unsigned char ch2; diff -U4 -r -N djbdns-1.05/cache.c djbdns-1.05-p13/cache.c --- djbdns-1.05/cache.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/cache.c Sat Oct 6 21:27:29 2001 @@ -1,13 +1,24 @@ +#ifdef DUMPCACHE +#include <stdio.h> +#include <unistd.h> +#include "env.h" +#include "error.h" +#include "open.h" +#include "openreadclose.h" +#endif #include "alloc.h" #include "byte.h" #include "uint32.h" #include "exit.h" #include "tai.h" #include "cache.h" +#include "dns.h" +#include "buffer.h" uint64 cache_motion = 0; +static char *rrobin; static char *x = 0; static uint32 size; static uint32 hsize; static uint32 writer; @@ -86,8 +97,14 @@ uint32 nextpos; uint32 u; unsigned int loop; double d; + static int trigger=0; + + if (!trigger) { + rrobin = env_get("ROUNDROBIN"); + trigger++; + } if (!x) return 0; if (keylen > MAXKEYLEN) return 0; @@ -110,9 +127,13 @@ u = get4(pos + 8); if (u > size - pos - 20 - keylen) cache_impossible(); *datalen = u; - + if (byte_equal(key,2,DNS_T_A)) { + if (rrobin) { + dns_rotateip(x + pos + 20 + keylen,u); + } + } return x + pos + 20 + keylen; } } nextpos = prevpos ^ get4(pos); @@ -204,4 +225,98 @@ unused = size; return 1; } + +#ifdef DUMPCACHE +static int fd; + +static int cache_writeline(const char *buf, unsigned int len) +{ + int w; + + while (len) { + w = write(fd,buf,len); + if (w == -1) { + if (errno == error_intr) continue; + close(fd); + return -1; + } + buf += w; + len -= w; + } + return 0; +} + +int cache_dump(void) +{ + static char *fn; + static char *fntmp; + uint32 pos; + unsigned int len; + + fn = env_get("DUMPCACHE"); + if (!fn) return 999; + fntmp = env_get("DUMPCACHETMP"); + if (!fntmp) return 999; + fd = open_trunc(fntmp); + if (fd == -1) return -1; + + pos = oldest; + while (pos < unused) { + len = get4(pos + 4) + get4(pos + 8) + 16; + if (cache_writeline(x + pos + 4, len)) return -1; + pos += 4 + len; + } + pos = hsize; + while (pos < writer) { + len = get4(pos + 4) + get4(pos + 8) + 16; + if (cache_writeline(x + pos + 4, len)) return -1; + pos += 4 + len; + } + + if (fsync(fd) == -1) return -1; + if (close(fd) == -1) return -1; + if (rename(fntmp,fn) == -1) return -1; + return 0; +} + +int cache_slurp(const char *fn) +{ + static stralloc buf = {0}; + char *p; + uint32 pos; + unsigned int len; + uint32 keylen; + uint32 datalen; + struct tai now; + struct tai expire; + int nb; + + if (openreadclose(fn,&buf,16384) != 1) goto DIE; + tai_now(&now); + p = buf.s; + pos = 0; + len = buf.len; + nb = 0; + while (pos + 16 <= len) { + uint32_unpack(p + pos, &keylen); + uint32_unpack(p + pos + 4, &datalen); + tai_unpack(p + pos + 8, &expire); + pos += 16; + if (pos + keylen + datalen > len) break; /* missing data */ + if (!tai_less(&expire,&now)) { + tai_sub(&expire,&expire,&now); + cache_set(p + pos, keylen, p + pos + keylen, datalen, (unsigned int)expire.x); + } + pos += keylen + datalen; + nb++; + } + alloc_free(buf.s); buf.s = 0; + return nb; + + DIE: + alloc_free(buf.s); buf.s = 0; + if (errno == error_noent) return 0; + return -1; +} +#endif diff -U4 -r -N djbdns-1.05/cache.h djbdns-1.05-p13/cache.h --- djbdns-1.05/cache.h Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/cache.h Wed Oct 3 21:16:44 2001 @@ -7,6 +7,10 @@ extern uint64 cache_motion; extern int cache_init(unsigned int); extern void cache_set(const char *,unsigned int,const char *,unsigned int,uint32); extern char *cache_get(const char *,unsigned int,unsigned int *,uint32 *); +#ifdef DUMPCACHE +extern int cache_dump(void); +extern int cache_slurp(const char *); +#endif #endif diff -U4 -r -N djbdns-1.05/chkshsgr.c djbdns-1.05-p13/chkshsgr.c --- djbdns-1.05/chkshsgr.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/chkshsgr.c Wed Oct 3 22:40:52 2001 @@ -1,5 +1,7 @@ #include "exit.h" +#include <grp.h> +#include <unistd.h> int main() { short x[4]; diff -U4 -r -N djbdns-1.05/conf-cc djbdns-1.05-p13/conf-cc --- djbdns-1.05/conf-cc Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/conf-cc Wed Oct 3 21:16:44 2001 @@ -1,3 +1,3 @@ -gcc -O2 -Wimplicit -Wunused -Wcomment -Wchar-subscripts -Wuninitialized -Wshadow -Wcast-qual -Wcast-align -Wwrite-strings +gcc -O2 -Wimplicit -Wunused -Wcomment -Wchar-subscripts -Wuninitialized -Wshadow -Wcast-qual -Wcast-align -Wwrite-strings -DDUMPCACHE This will be used to compile .c files. diff -U4 -r -N djbdns-1.05/dns.h djbdns-1.05-p13/dns.h --- djbdns-1.05/dns.h Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/dns.h Sat Oct 6 20:23:55 2001 @@ -19,8 +19,9 @@ #define DNS_T_RP "\0\21" #define DNS_T_SIG "\0\30" #define DNS_T_KEY "\0\31" #define DNS_T_AAAA "\0\34" +#define DNS_T_SRV "\0\41" #define DNS_T_AXFR "\0\374" #define DNS_T_ANY "\0\377" struct dns_transmit { @@ -42,8 +43,9 @@ extern void dns_random_init(const char *); extern unsigned int dns_random(unsigned int); extern void dns_sortip(char *,unsigned int); +extern void dns_rotateip(char *,unsigned int); extern void dns_domain_free(char **); extern int dns_domain_copy(char **,const char *); extern unsigned int dns_domain_length(const char *); diff -U4 -r -N djbdns-1.05/dns_rotateip.c djbdns-1.05-p13/dns_rotateip.c --- djbdns-1.05/dns_rotateip.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/dns_rotateip.c Sat Oct 6 20:23:55 2001 @@ -0,0 +1,15 @@ +#include "byte.h" + +void dns_rotateip(char *s, unsigned int n) +{ + unsigned int i; + char tmp[4]; + + i = n >> 2; + while (i > 1) { + --i; + byte_copy(tmp,4,s + (i << 2)); + byte_copy(s + (i << 2),4,s); + byte_copy(s,4,tmp); + } +} diff -U4 -r -N djbdns-1.05/dnscache-conf.c djbdns-1.05-p13/dnscache-conf.c --- djbdns-1.05/dnscache-conf.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/dnscache-conf.c Wed Oct 3 21:16:44 2001 @@ -31,8 +31,12 @@ char *dir; char *user; char *loguser; struct passwd *pw; +#ifdef DUMPCACHE +int useruid; +int usergid; +#endif const char *myip; uint32 seed[32]; int seedpos = 0; @@ -80,8 +84,16 @@ if (dir[0] != '/') usage(); myip = argv[4]; if (!myip) myip = "127.0.0.1"; +#ifdef DUMPCACHE + pw = getpwnam(user); + seed_addtime(); + if (!pw) + strerr_die3x(111,FATAL,"unknown account ",user); + useruid = pw->pw_uid; + usergid = pw->pw_gid; +#endif pw = getpwnam(loguser); seed_addtime(); if (!pw) strerr_die3x(111,FATAL,"unknown account ",loguser); @@ -119,8 +131,16 @@ seed_addtime(); start("env/CACHESIZE"); outs("1000000\n"); finish(); seed_addtime(); perm(0644); seed_addtime(); start("env/DATALIMIT"); outs("3000000\n"); finish(); seed_addtime(); perm(0644); +#ifdef DUMPCACHE + seed_addtime(); start("env/SLURPCACHE"); outs("dump/slurpcache\n"); finish(); + seed_addtime(); perm(0644); + seed_addtime(); start("env/DUMPCACHE"); outs("dump/dumpcache\n"); finish(); + seed_addtime(); perm(0644); + seed_addtime(); start("env/DUMPCACHETMP"); outs("dump/dumpcache.tmp\n"); finish(); + seed_addtime(); perm(0644); +#endif seed_addtime(); start("run"); outs("#!/bin/sh\nexec 2>&1\nexec <seed\nexec envdir ./env sh -c '\n exec envuidgid "); outs(user); outs(" softlimit -o250 -d \"$DATALIMIT\" "); outs(auto_home); outs("/bin/dnscache\n'\n"); finish(); @@ -130,8 +150,13 @@ outs(" multilog t ./main\n"); finish(); seed_addtime(); perm(0755); seed_addtime(); makedir("root"); seed_addtime(); perm(02755); +#ifdef DUMPCACHE + seed_addtime(); makedir("root/dump"); + seed_addtime(); owner(useruid,usergid); + seed_addtime(); perm(02755); +#endif seed_addtime(); makedir("root/ip"); seed_addtime(); perm(02755); seed_addtime(); start("root/ip/127.0.0.1"); finish(); seed_addtime(); perm(0600); diff -U4 -r -N djbdns-1.05/dnscache.c djbdns-1.05-p13/dnscache.c --- djbdns-1.05/dnscache.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/dnscache.c Sat Oct 6 17:11:20 2001 @@ -4,8 +4,9 @@ #include "scan.h" #include "strerr.h" #include "error.h" #include "ip4.h" +#include "str.h" #include "uint16.h" #include "uint64.h" #include "socket.h" #include "dns.h" @@ -21,8 +22,9 @@ #include "ndelay.h" #include "log.h" #include "okclient.h" #include "droproot.h" +#include "sig.h" static int packetquery(char *buf,unsigned int len,char **q,char qtype[2],char qclass[2],char id[2]) { unsigned int pos; @@ -46,21 +48,30 @@ } static char myipoutgoing[4]; -static char myipincoming[4]; static char buf[1024]; uint64 numqueries = 0; +struct interf { + char ip[4]; + int udp53; + int tcp53; + iopause_fd *udp53io; + iopause_fd *tcp53io; + + struct interf *next; +} ; -static int udp53; +struct interf *interhead = 0; #define MAXUDP 200 static struct udpclient { struct query q; struct taia start; uint64 active; /* query number, if active; otherwise 0 */ iopause_fd *io; + int fd; char ip[4]; uint16 port; char id[2]; } u[MAXUDP]; @@ -77,14 +88,14 @@ { if (!u[j].active) return; response_id(u[j].id); if (response_len > 512) response_tc(); - socket_send4(udp53,response,response_len,u[j].ip,u[j].port); + socket_send4(u[j].fd,response,response_len,u[j].ip,u[j].port); log_querydone(&u[j].active,response_len); u[j].active = 0; --uactive; } -void u_new(void) +void u_new(int fd) { int j; int i; struct udpclient *x; @@ -107,10 +118,11 @@ } x = u + j; taia_now(&x->start); + x->fd = fd; - len = socket_recv4(udp53,buf,sizeof buf,x->ip,&x->port); + len = socket_recv4(x->fd,buf,sizeof buf,x->ip,&x->port); if (len == -1) return; if (len >= sizeof buf) return; if (x->port < 1024) if (x->port != 53) return; if (!okclient(x->ip)) return; @@ -128,17 +140,16 @@ } } -static int tcp53; - #define MAXTCP 20 struct tcpclient { struct query q; struct taia start; struct taia timeout; uint64 active; /* query number or 1, if active; otherwise 0 */ iopause_fd *io; + int fd; char ip[4]; /* send response to this address */ uint16 port; /* send response to this port */ char id[2]; int tcp; /* open TCP socket, if active */ @@ -265,9 +276,9 @@ t_free(j); x->state = 0; } -void t_new(void) +void t_new(int fd) { int i; int j; struct tcpclient *x; @@ -289,10 +300,11 @@ } x = t + j; taia_now(&x->start); + x->fd = fd; - x->tcp = socket_accept4(tcp53,x->ip,&x->port); + x->tcp = socket_accept4(x->fd,x->ip,&x->port); if (x->tcp == -1) return; if (x->port < 1024) if (x->port != 53) { close(x->tcp); return; } if (!okclient(x->ip)) { close(x->tcp); return; } if (ndelay_on(x->tcp) == -1) { close(x->tcp); return; } /* Linux bug */ @@ -303,35 +315,62 @@ log_tcpopen(x->ip,x->port); } +#ifdef DUMPCACHE +static void do_dump(void) +{ + int r; + r = cache_dump(); + if (r < 0) + r = errno; + log_dump(r); +} +#endif + +#define FATAL "dnscache: fatal: " + +iopause_fd *io = 0; +int numio; + +void hup_me() +{ + if (!roots_init()) + strerr_die2sys(111,FATAL,"unable to read servers: "); + + log_reread(); +} -iopause_fd io[3 + MAXUDP + MAXTCP]; -iopause_fd *udp53io; -iopause_fd *tcp53io; static void doit(void) { int j; struct taia deadline; struct taia stamp; + struct interf *inter; int iolen; int r; + io = (iopause_fd *) alloc((numio + 1 + MAXUDP + MAXTCP) * sizeof(iopause_fd)); + if (!io) + strerr_die2sys(111,FATAL,"unable to alloc io: "); + for (;;) { taia_now(&stamp); taia_uint(&deadline,120); taia_add(&deadline,&deadline,&stamp); iolen = 0; - udp53io = io + iolen++; - udp53io->fd = udp53; - udp53io->events = IOPAUSE_READ; - - tcp53io = io + iolen++; - tcp53io->fd = tcp53; - tcp53io->events = IOPAUSE_READ; + for (inter = interhead; inter != 0; inter = inter->next) { + inter->udp53io = io + iolen++; + inter->udp53io->fd = inter->udp53; + inter->udp53io->events = IOPAUSE_READ; + + inter->tcp53io = io + iolen++; + inter->tcp53io->fd = inter->tcp53; + inter->tcp53io->events = IOPAUSE_READ; + } for (j = 0;j < MAXUDP;++j) if (u[j].active) { u[j].io = io + iolen++; @@ -371,48 +410,85 @@ if (t[j].io->revents || taia_less(&t[j].timeout,&stamp)) t_rw(j); } - if (udp53io) - if (udp53io->revents) - u_new(); - - if (tcp53io) - if (tcp53io->revents) - t_new(); + for (inter = interhead; inter != 0; inter = inter->next) { + if (inter->udp53io) + if (inter->udp53io->revents) + u_new(inter->udp53); + + if (inter->tcp53io) + if (inter->tcp53io->revents) + t_new(inter->tcp53); + } } } -#define FATAL "dnscache: fatal: " - char seed[128]; int main() { char *x; + char nxdip[4]; + int len; + int pos; + int oldpos; + char iptmp[4]; + char iperr[IP4_FMT]; + struct interf *inter; + struct interf *itmp; unsigned long cachesize; x = env_get("IP"); if (!x) strerr_die2x(111,FATAL,"$IP not set"); - if (!ip4_scan(x,myipincoming)) - strerr_die3x(111,FATAL,"unable to parse IP address ",x); - udp53 = socket_udp(); - if (udp53 == -1) - strerr_die2sys(111,FATAL,"unable to create UDP socket: "); - if (socket_bind4_reuse(udp53,myipincoming,53) == -1) - strerr_die2sys(111,FATAL,"unable to bind UDP socket: "); - - tcp53 = socket_tcp(); - if (tcp53 == -1) - strerr_die2sys(111,FATAL,"unable to create TCP socket: "); - if (socket_bind4_reuse(tcp53,myipincoming,53) == -1) - strerr_die2sys(111,FATAL,"unable to bind TCP socket: "); + len = str_len(x); + numio = pos = oldpos = 0; + + while (pos < len) { + if (pos) oldpos = pos + 1; + pos = oldpos + str_chr(x + oldpos,'/'); + x[pos] = 0; + if (!str_len(x + oldpos)) continue; + + if (!ip4_scan(x + oldpos,iptmp)) + strerr_die3x(111,FATAL,"unable to parse IP address ",x + oldpos); + + inter = (struct interf *) alloc(sizeof(struct interf)); + + if (interhead == 0) interhead = inter; + else if (interhead->next == 0) interhead->next = inter; + else { + for (itmp = interhead; itmp->next != 0; itmp = itmp->next); + itmp->next = inter; + } + + inter->next = 0; + + inter->udp53 = socket_udp(); + if (inter->udp53 == -1) + strerr_die4sys(111,FATAL,"unable to create UDP socket for IP address ",x + oldpos,": "); + if (socket_bind4_reuse(inter->udp53,iptmp,53) == -1) + strerr_die4sys(111,FATAL,"unable to bind UDP socket for IP address ",x + oldpos,": "); + + inter->tcp53 = socket_tcp(); + if (inter->tcp53 == -1) + strerr_die4sys(111,FATAL,"unable to create TCP socket for IP address ",x + oldpos,": "); + if (socket_bind4_reuse(inter->tcp53,iptmp,53) == -1) + strerr_die4sys(111,FATAL,"unable to bind TCP socket for IP address ",x + oldpos,": "); + + numio++; + log_listen(iptmp); + } + + if (interhead == 0) + strerr_die2x(111,FATAL,"no interfaces to listen on"); droproot(FATAL); - socket_tryreservein(udp53,131072); + for (inter = interhead; inter != 0; inter = inter->next) + socket_tryreservein(inter->udp53,131072); byte_zero(seed,sizeof seed); read(0,seed,sizeof seed); dns_random_init(seed); @@ -429,19 +505,44 @@ strerr_die2x(111,FATAL,"$CACHESIZE not set"); scan_ulong(x,&cachesize); if (!cache_init(cachesize)) strerr_die3x(111,FATAL,"not enough memory for cache of size ",x); +#ifdef DUMPCACHE + x = env_get("SLURPCACHE"); + if (x) { + int nb = cache_slurp(x); + if (nb < 0) + strerr_die4sys(111,FATAL,"unable to slurp cache ",x," : "); + else + log_slurp(nb); + } +#endif if (env_get("HIDETTL")) response_hidettl(); if (env_get("FORWARDONLY")) query_forwardonly(); + x = env_get("NXDSPECIAL"); + if (x) { + if (!ip4_scan(x,nxdip)) + strerr_die3x(111,FATAL,"unable to parse NXDSPECIAL IP address ",x); + query_nxdspecial(nxdip); + } + if (!roots_init()) strerr_die2sys(111,FATAL,"unable to read servers: "); - if (socket_listen(tcp53,20) == -1) - strerr_die2sys(111,FATAL,"unable to listen on TCP socket: "); + for (inter = interhead; inter != 0; inter = inter->next) + if (socket_listen(inter->tcp53,20) == -1) { + iperr[ip4_fmt(iperr,inter->ip)] = 0; + strerr_die4sys(111,FATAL,"unable to listen on TCP socket for IP ",iperr,": "); + } + +#ifdef DUMPCACHE + sig_catch(sig_alarm,do_dump); +#endif + sig_catch(sig_hangup, hup_me); log_startup(); doit(); } diff -U4 -r -N djbdns-1.05/dnsfilter.c djbdns-1.05-p13/dnsfilter.c --- djbdns-1.05/dnsfilter.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/dnsfilter.c Wed Oct 3 23:20:20 2001 @@ -40,8 +40,9 @@ int inbuflen = 0; iopause_fd *inio; int flag0 = 1; +int opt_replace = 0; iopause_fd *io; int iolen; char servers[64]; @@ -50,14 +51,18 @@ void errout(int i) { int j; - - if (!stralloc_copys(&x[i].middle,":")) nomem(); - if (!stralloc_cats(&x[i].middle,error_str(errno))) nomem(); - for (j = 0;j < x[i].middle.len;++j) - if (x[i].middle.s[j] == ' ') - x[i].middle.s[j] = '-'; + + if (opt_replace) + x[i].middle.len=0; + else { + if (!stralloc_copys(&x[i].middle,":")) nomem(); + if (!stralloc_cats(&x[i].middle,error_str(errno))) nomem(); + for (j = 0;j < x[i].middle.len;++j) + if (x[i].middle.s[j] == ' ') + x[i].middle.s[j] = '-'; + } } int main(int argc,char **argv) { @@ -68,9 +73,9 @@ int i; int j; int r; - while ((opt = getopt(argc,argv,"c:l:")) != opteof) + while ((opt = getopt(argc,argv,"c:l:r")) != opteof) switch(opt) { case 'c': scan_ulong(optarg,&u); if (u < 1) u = 1; @@ -82,10 +87,13 @@ if (u < 1) u = 1; if (u > 1000000) u = 1000000; xmax = u; break; + case 'r': + opt_replace = 1; + break; default: - strerr_die1x(111,"dnsfilter: usage: dnsfilter [ -c concurrency ] [ -l lines ]"); + strerr_die1x(111,"dnsfilter: usage: dnsfilter [ -c concurrency ] [ -l lines ] [-r]"); } x = (struct line *) alloc(xmax * sizeof(struct line)); if (!x) nomem(); @@ -139,10 +147,15 @@ } else if (r == 1) { if (dns_name_packet(&x[i].middle,x[i].dt.packet,x[i].dt.packetlen) == -1) errout(i); - if (x[i].middle.len) - if (!stralloc_cats(&x[i].left,"=")) nomem(); + if (x[i].middle.len) { + if (opt_replace) { + if (!stralloc_copys(&x[i].left, "")) nomem(); + } else { + if (!stralloc_cats(&x[i].left, "=")) nomem(); + } + } x[i].flagactive = 0; --numactive; } } diff -U4 -r -N djbdns-1.05/hassgact.h1 djbdns-1.05-p13/hassgact.h1 --- djbdns-1.05/hassgact.h1 Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/hassgact.h1 Wed Oct 3 21:16:44 2001 @@ -0,0 +1 @@ +/* sysdep: -sigaction */ diff -U4 -r -N djbdns-1.05/hassgact.h2 djbdns-1.05-p13/hassgact.h2 --- djbdns-1.05/hassgact.h2 Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/hassgact.h2 Wed Oct 3 21:16:44 2001 @@ -0,0 +1,2 @@ +/* sysdep: +sigaction */ +#define HASSIGACTION 1 diff -U4 -r -N djbdns-1.05/hassgprm.h1 djbdns-1.05-p13/hassgprm.h1 --- djbdns-1.05/hassgprm.h1 Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/hassgprm.h1 Wed Oct 3 21:16:44 2001 @@ -0,0 +1 @@ +/* sysdep: -sigprocmask */ diff -U4 -r -N djbdns-1.05/hassgprm.h2 djbdns-1.05-p13/hassgprm.h2 --- djbdns-1.05/hassgprm.h2 Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/hassgprm.h2 Wed Oct 3 21:16:44 2001 @@ -0,0 +1,2 @@ +/* sysdep: +sigprocmask */ +#define HASSIGPROCMASK 1 diff -U4 -r -N djbdns-1.05/log.c djbdns-1.05-p13/log.c --- djbdns-1.05/log.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/log.c Fri Oct 5 15:39:38 2001 @@ -87,13 +87,40 @@ string("."); } } +void log_reread(void) +{ + string("rereading servers configuration"); + line(); +} + void log_startup(void) { string("starting"); line(); } + +void log_listen(const char addr[4]) +{ + string("listening on "); + ip(addr); + line(); +} + +#ifdef DUMPCACHE +void log_slurp(int nb) +{ + string("slurp "); number(nb); + line(); +} + +void log_dump(int err) +{ + string("dump err "); number(err); + line(); +} +#endif void log_query(uint64 *qnum,const char client[4],unsigned int port,const char id[2],const char *q,const char qtype[2]) { string("query "); number(*qnum); space(); diff -U4 -r -N djbdns-1.05/log.h djbdns-1.05-p13/log.h --- djbdns-1.05/log.h Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/log.h Fri Oct 5 15:44:08 2001 @@ -3,8 +3,14 @@ #include "uint64.h" extern void log_startup(void); +extern void log_listen(const char *); +#ifdef DUMPCACHE +extern void log_slurp(int); +extern void log_dump(int); +#endif +extern void log_reread(void); extern void log_query(uint64 *,const char *,unsigned int,const char *,const char *,const char *); extern void log_querydrop(uint64 *); extern void log_querydone(uint64 *,unsigned int); diff -U4 -r -N djbdns-1.05/okclient.c djbdns-1.05-p13/okclient.c --- djbdns-1.05/okclient.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/okclient.c Wed Oct 3 02:20:12 2001 @@ -1,6 +1,7 @@ #include <sys/types.h> #include <sys/stat.h> +#include "env.h" #include "str.h" #include "ip4.h" #include "okclient.h" @@ -9,8 +10,16 @@ int okclient(char ip[4]) { struct stat st; int i; + static int init_done=0; + if (!init_done) { + if (env_get("OKCLIENT")) { + init_done=1; + } else + init_done=2; + } + if (init_done==1) return 1; fn[0] = 'i'; fn[1] = 'p'; fn[2] = '/'; diff -U4 -r -N djbdns-1.05/prot.c djbdns-1.05-p13/prot.c --- djbdns-1.05/prot.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/prot.c Wed Oct 3 22:49:25 2001 @@ -1,6 +1,8 @@ #include "hasshsgr.h" #include "prot.h" +#include <grp.h> +#include <unistd.h> int prot_gid(int gid) { #ifdef HASSHORTSETGROUPS diff -U4 -r -N djbdns-1.05/query.c djbdns-1.05-p13/query.c --- djbdns-1.05/query.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/query.c Sat Oct 6 17:10:34 2001 @@ -19,8 +19,17 @@ { flagforwardonly = 1; } +static int flagnxdspecial = 0; +static char nxdip[4]; + +void query_nxdspecial(const char ip[4]) +{ + byte_copy(nxdip,4,ip); + flagnxdspecial = 1; +} + static void cachegeneric(const char type[2],const char *d,const char *data,unsigned int datalen,uint32 ttl) { unsigned int len; char key[257]; @@ -245,8 +254,9 @@ byte_copy(key + 2,dlen,d); case_lowerb(key + 2,dlen); cached = cache_get(key,dlen + 2,&cachedlen,&ttl); if (cached) { + soattl = rcode = 0; log_cachednxdomain(d); goto NXDOMAIN; } @@ -694,9 +704,14 @@ NXDOMAIN: if (z->level) goto LOWERLEVEL; if (!rqa(z)) goto DIE; - response_nxdomain(); + if (flagnxdspecial && typematch(DNS_T_A,dtype)) { + if (!response_rstart(d,DNS_T_A,rcode == 3 ? soattl : ttl)) goto DIE; + if (!response_addbytes(nxdip,4)) goto DIE; + response_rfinish(RESPONSE_ANSWER); + } else + response_nxdomain(); cleanup(z); return 1; } diff -U4 -r -N djbdns-1.05/query.h djbdns-1.05-p13/query.h --- djbdns-1.05/query.h Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/query.h Sat Oct 6 17:10:48 2001 @@ -27,6 +27,7 @@ extern void query_io(struct query *,iopause_fd *,struct taia *); extern int query_get(struct query *,iopause_fd *,struct taia *); extern void query_forwardonly(void); +extern void query_nxdspecial(const char *); #endif diff -U4 -r -N djbdns-1.05/seek_set.c djbdns-1.05-p13/seek_set.c --- djbdns-1.05/seek_set.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/seek_set.c Wed Oct 3 22:15:22 2001 @@ -1,5 +1,6 @@ #include <sys/types.h> +#include <unistd.h> #include "seek.h" #define SET 0 /* sigh */ diff -U4 -r -N djbdns-1.05/server.c djbdns-1.05-p13/server.c --- djbdns-1.05/server.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/server.c Sat Oct 6 20:03:22 2001 @@ -10,8 +10,10 @@ #include "droproot.h" #include "qlog.h" #include "response.h" #include "dns.h" +#include "alloc.h" +#include "iopause.h" extern char *fatal; extern char *starting; extern int respond(char *,char *,char *); @@ -24,8 +26,46 @@ static int len; static char *q; + +static void hex(unsigned char c) +{ + buffer_put(buffer_2,"0123456789abcdef" + (c >> 4),1); + buffer_put(buffer_2,"0123456789abcdef" + (c & 15),1); +} + +static void put_ip(const char i[4]) +{ + hex(i[0]); + hex(i[1]); + hex(i[2]); + hex(i[3]); +} + +static void string(const char *s) +{ + buffer_puts(buffer_2,s); +} + +static void line(void) +{ + string("\n"); + buffer_flush(buffer_2); +} + +void log_listen(const char addr[4]) +{ + string("listening on "); + put_ip(addr); + line(); +} + +void nomem() +{ + strerr_die2x(111,fatal,"out of memory"); +} + static int doit(void) { unsigned int pos; char header[12]; @@ -50,17 +90,29 @@ if (byte_diff(qclass,2,DNS_C_ANY)) goto WEIRDCLASS; response[3] &= ~128; if (!(header[2] & 1)) response[2] &= ~1; + if ((header[2] & 126) == 0x24) /* NOTIFY + AA */ + if (byte_equal(qtype,2,DNS_T_SOA)) { + response[2] |= 0x20; /* NOTIFY */ + qlog(ip,port,header,q,qtype," N "); + return 1; + } + if (header[2] & 126) goto NOTIMP; if (byte_equal(qtype,2,DNS_T_AXFR)) goto NOTIMP; case_lowerb(q,dns_domain_length(q)); if (!respond(q,qtype,ip)) { qlog(ip,port,header,q,qtype," - "); return 0; } - qlog(ip,port,header,q,qtype," + "); + + if ((response[2] & 4) && (response[3] & 3)) + qlog(ip,port,header,q,qtype," X "); + else + qlog(ip,port,header,q,qtype," + "); + return 1; NOTIMP: response[3] &= ~15; @@ -81,36 +133,76 @@ int main() { char *x; - int udp53; + int *udp53; + unsigned int off; + unsigned int cnt; + iopause_fd *iop; x = env_get("IP"); if (!x) strerr_die2x(111,fatal,"$IP not set"); - if (!ip4_scan(x,ip)) - strerr_die3x(111,fatal,"unable to parse IP address ",x); - - udp53 = socket_udp(); - if (udp53 == -1) - strerr_die2sys(111,fatal,"unable to create UDP socket: "); - if (socket_bind4_reuse(udp53,ip,53) == -1) - strerr_die2sys(111,fatal,"unable to bind UDP socket: "); + off=0; + cnt=0; + while (x[off]) { + unsigned int l; + char dummy[4]; + l=ip4_scan(x+off,dummy); + if (!l) + strerr_die3x(111,fatal,"unable to parse IP address ",x+off); + cnt++; + if (!x[off+l]) break; + if (x[off+l]!='/') + strerr_die3x(111,fatal,"unable to parse IP address ",x+off); + off+=l+1; + } + udp53=(int *) alloc(sizeof(int) *cnt); + if (!udp53) nomem(); + iop=(iopause_fd *) alloc(sizeof(*iop) * cnt); + if (!iop) nomem(); + + off=0; + cnt=0; + while (x[off]) { + unsigned int l; + l=ip4_scan(x+off,ip); + udp53[cnt] = socket_udp(); + if (udp53[cnt] == -1) + strerr_die2sys(111,fatal,"unable to create UDP socket: "); + if (socket_bind4_reuse(udp53[cnt],ip,53) == -1) + strerr_die2sys(111,fatal,"unable to bind UDP socket: "); + ndelay_off(udp53[cnt]); + socket_tryreservein(udp53[cnt],65536); + iop[cnt].fd=udp53[cnt]; + iop[cnt].events=IOPAUSE_READ; + log_listen(ip); + cnt++; + if (!x[off+l]) break; + off+=l+1; + } droproot(fatal); initialize(); - - ndelay_off(udp53); - socket_tryreservein(udp53,65536); buffer_putsflush(buffer_2,starting); - + for (;;) { - len = socket_recv4(udp53,buf,sizeof buf,ip,&port); - if (len < 0) continue; - if (!doit()) continue; - if (response_len > 512) response_tc(); - socket_send4(udp53,response,response_len,ip,port); - /* may block for buffer space; if it fails, too bad */ + struct taia stamp; + struct taia deadline; + unsigned int i; + taia_now(&stamp); + taia_uint(&deadline,300); + taia_add(&deadline,&deadline,&stamp); + iopause(iop,cnt,&deadline,&stamp); + for (i=0;i<cnt;i++) + if (iop[i].revents) { + len = socket_recv4(udp53[i],buf,sizeof buf,ip,&port); + if (len < 0) continue; + if (!doit()) continue; + if (response_len > 512) response_tc(); + socket_send4(udp53[i],response,response_len,ip,port); + /* may block for buffer space; if it fails, too bad */ + } } } diff -U4 -r -N djbdns-1.05/sig.c djbdns-1.05-p13/sig.c --- djbdns-1.05/sig.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/sig.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,12 @@ +#include <signal.h> +#include "sig.h" + +int sig_alarm = SIGALRM; +int sig_child = SIGCHLD; +int sig_cont = SIGCONT; +int sig_hangup = SIGHUP; +int sig_pipe = SIGPIPE; +int sig_term = SIGTERM; + +void (*sig_defaulthandler)() = SIG_DFL; +void (*sig_ignorehandler)() = SIG_IGN; diff -U4 -r -N djbdns-1.05/sig.h djbdns-1.05-p13/sig.h --- djbdns-1.05/sig.h Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/sig.h Wed Oct 3 21:16:44 2001 @@ -0,0 +1,25 @@ +#ifndef SIG_H +#define SIG_H + +extern int sig_alarm; +extern int sig_child; +extern int sig_cont; +extern int sig_hangup; +extern int sig_pipe; +extern int sig_term; + +extern void (*sig_defaulthandler)(); +extern void (*sig_ignorehandler)(); + +extern void sig_catch(int,void (*)()); +#define sig_ignore(s) (sig_catch((s),sig_ignorehandler)) +#define sig_uncatch(s) (sig_catch((s),sig_defaulthandler)) + +extern void sig_block(int); +extern void sig_unblock(int); +extern void sig_blocknone(void); +extern void sig_pause(void); + +extern void sig_dfl(int); + +#endif diff -U4 -r -N djbdns-1.05/sig_block.c djbdns-1.05-p13/sig_block.c --- djbdns-1.05/sig_block.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/sig_block.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,38 @@ +#include <signal.h> +#include "sig.h" +#include "hassgprm.h" + +void sig_block(int sig) +{ +#ifdef HASSIGPROCMASK + sigset_t ss; + sigemptyset(&ss); + sigaddset(&ss,sig); + sigprocmask(SIG_BLOCK,&ss,(sigset_t *) 0); +#else + sigblock(1 << (sig - 1)); +#endif +} + +void sig_unblock(int sig) +{ +#ifdef HASSIGPROCMASK + sigset_t ss; + sigemptyset(&ss); + sigaddset(&ss,sig); + sigprocmask(SIG_UNBLOCK,&ss,(sigset_t *) 0); +#else + sigsetmask(sigsetmask(~0) & ~(1 << (sig - 1))); +#endif +} + +void sig_blocknone(void) +{ +#ifdef HASSIGPROCMASK + sigset_t ss; + sigemptyset(&ss); + sigprocmask(SIG_SETMASK,&ss,(sigset_t *) 0); +#else + sigsetmask(0); +#endif +} diff -U4 -r -N djbdns-1.05/sig_catch.c djbdns-1.05-p13/sig_catch.c --- djbdns-1.05/sig_catch.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/sig_catch.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,16 @@ +#include <signal.h> +#include "sig.h" +#include "hassgact.h" + +void sig_catch(int sig,void (*f)()) +{ +#ifdef HASSIGACTION + struct sigaction sa; + sa.sa_handler = f; + sa.sa_flags = 0; + sigemptyset(&sa.sa_mask); + sigaction(sig,&sa,(struct sigaction *) 0); +#else + signal(sig,f); /* won't work under System V, even nowadays---dorks */ +#endif +} diff -U4 -r -N djbdns-1.05/sig_pause.c djbdns-1.05-p13/sig_pause.c --- djbdns-1.05/sig_pause.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/sig_pause.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,14 @@ +#include <signal.h> +#include "sig.h" +#include "hassgprm.h" + +void sig_pause(void) +{ +#ifdef HASSIGPROCMASK + sigset_t ss; + sigemptyset(&ss); + sigsuspend(&ss); +#else + sigpause(0); +#endif +} diff -U4 -r -N djbdns-1.05/tinydns-data.c djbdns-1.05-p13/tinydns-data.c --- djbdns-1.05/tinydns-data.c Sun Feb 11 23:11:45 2001 +++ djbdns-1.05-p13/tinydns-data.c Wed Oct 3 02:09:01 2001 @@ -158,20 +158,18 @@ if (cdb_make_add(&cdb,key.s,key.len,result.s,result.len) == -1) die_datatmp(); } -buffer b; -char bspace[1024]; - static stralloc line; -int match = 1; unsigned long linenum = 0; #define NUMFIELDS 15 static stralloc f[NUMFIELDS]; static char *d1; static char *d2; +static char *contact; + char dptr[DNS_NAME4_DOMAIN]; char strnum[FMT_ULONG]; @@ -180,9 +178,9 @@ strnum[fmt_ulong(strnum,linenum)] = 0; strerr_die4x(111,FATAL,"unable to parse data line ",strnum,why); } -int main() +int load(const char *fname) { int fddata; int i; int j; @@ -195,22 +193,21 @@ char ip[4]; char type[2]; char soa[20]; char buf[4]; + char srv[6]; + int match; + buffer b; + char bspace[1024]; - umask(022); - - fddata = open_read("data"); + fddata = open_read(fname); if (fddata == -1) - strerr_die2sys(111,FATAL,"unable to open data: "); + strerr_die4sys(111,FATAL,"unable to open ",fname,": "); defaultsoa_init(fddata); buffer_init(&b,buffer_unixread,fddata,bspace,sizeof bspace); - fdcdb = open_trunc("data.tmp"); - if (fdcdb == -1) die_datatmp(); - if (cdb_make_start(&cdb,fdcdb) == -1) die_datatmp(); - + match = 1; while (match) { ++linenum; if (getln(&b,&line,&match,'\n') == -1) strerr_die2sys(111,FATAL,"unable to read line: "); @@ -246,8 +243,13 @@ if (cdb_make_add(&cdb,key.s,key.len,loc,2) == -1) die_datatmp(); break; + case 'D': + if (!dns_domain_fromdot(&contact,f[0].s,f[0].len)) nomem(); + if (f[0].len == 0) contact = NULL; + break; + case 'Z': if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem(); if (!stralloc_0(&f[3])) nomem(); @@ -297,10 +299,15 @@ if (line.s[0] == '.') { rr_start(DNS_T_SOA,ttl ? TTL_NEGATIVE : 0,ttd,loc); rr_addname(d2); - rr_add("\12hostmaster",11); - rr_addname(d1); + if (!contact) { + rr_add("\12hostmaster",11); + rr_addname(d1); + } else { + rr_addname(contact); + } + rr_add(defaultsoa,20); rr_finish(d1); } @@ -368,8 +375,45 @@ rr_add(ip,4); rr_finish(d2); } break; + + case 'S': + if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem(); + if (!stralloc_0(&f[6])) nomem(); + if (!scan_ulong(f[6].s,&ttl)) ttl = TTL_POSITIVE; + ttdparse(&f[7],ttd); + locparse(&f[8],loc); + + if (!stralloc_0(&f[1])) nomem(); + + if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) { + if (!stralloc_cats(&f[2],".srv.")) nomem(); + if (!stralloc_catb(&f[2],f[0].s,f[0].len)) nomem(); + } + if (!dns_domain_fromdot(&d2,f[2].s,f[2].len)) nomem(); + + if (!stralloc_0(&f[4])) nomem(); + if (!scan_ulong(f[4].s,&u)) u = 0; + uint16_pack_big(srv,u); + if (!stralloc_0(&f[5])) nomem(); + if (!scan_ulong(f[5].s,&u)) u = 0; + uint16_pack_big(srv + 2,u); + if (!stralloc_0(&f[3])) nomem(); + if (!scan_ulong(f[3].s,&u)) nomem(); + uint16_pack_big(srv + 4,u); + + rr_start(DNS_T_SRV,ttl,ttd,loc); + rr_add(srv,6); + rr_addname(d2); + rr_finish(d1); + + if (ip4_scan(f[1].s,ip)) { + rr_start(DNS_T_A,ttl,ttd,loc); + rr_add(ip,4); + rr_finish(d2); + } + break; case '^': case 'C': if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem(); if (!dns_domain_fromdot(&d2,f[1].s,f[1].len)) nomem(); @@ -443,8 +487,23 @@ default: syntaxerror(": unrecognized leading character"); } + } + close(fddata); +} + +int main(int argc, char **argv) +{ + umask(022); + fdcdb = open_trunc("data.tmp"); + if (fdcdb == -1) die_datatmp(); + if (cdb_make_start(&cdb,fdcdb) == -1) die_datatmp(); + + if (argc == 1) + load("data"); + while(--argc) { + load(argv[argc]); } if (cdb_make_finish(&cdb) == -1) die_datatmp(); if (fsync(fdcdb) == -1) die_datatmp(); diff -U4 -r -N djbdns-1.05/trysgact.c djbdns-1.05-p13/trysgact.c --- djbdns-1.05/trysgact.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/trysgact.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,10 @@ +#include <signal.h> + +main() +{ + struct sigaction sa; + sa.sa_handler = 0; + sa.sa_flags = 0; + sigemptyset(&sa.sa_mask); + sigaction(0,&sa,(struct sigaction *) 0); +} diff -U4 -r -N djbdns-1.05/trysgprm.c djbdns-1.05-p13/trysgprm.c --- djbdns-1.05/trysgprm.c Thu Jan 1 02:00:00 1970 +++ djbdns-1.05-p13/trysgprm.c Wed Oct 3 21:16:44 2001 @@ -0,0 +1,10 @@ +#include <signal.h> + +main() +{ + sigset_t ss; + + sigemptyset(&ss); + sigaddset(&ss,SIGCHLD); + sigprocmask(SIG_SETMASK,&ss,(sigset_t *) 0); +}
