void s6dns_message_counts_pack (char *s, s6dns_message_counts_t const *counts)
{
uint16_pack_big(s, counts->qd) ;
uint16_pack_big(s+2, counts->an) ;
uint16_pack_big(s+4, counts->ns) ;
uint16_pack_big(s+6, counts->nr) ;
}
int
socket_send4 (int s, char *buf, int len,
const char ip[4], uint16 port, void *src)
{
char cbuf[256];
struct iovec iov;
struct msghdr msgh;
struct sockaddr_in sa;
struct cmsghdr *cmsg = NULL;
byte_zero (&sa, sizeof (sa));
sa.sin_family = AF_INET;
uint16_pack_big ((char *)&sa.sin_port, port);
byte_copy ((char *)&sa.sin_addr, 4, ip);
memset (cbuf, 0, sizeof (cbuf));
memset (&msgh, 0, sizeof (msgh));
iov.iov_len = len;
iov.iov_base = buf;
msgh.msg_iov = &iov;
msgh.msg_iovlen = 1;
msgh.msg_name = &sa;
msgh.msg_namelen = sizeof (sa);
#ifdef IP_PKTINFO
struct in_pktinfo *p = NULL;
msgh.msg_control = cbuf;
msgh.msg_controllen = CMSG_SPACE (sizeof (*p));
cmsg = CMSG_FIRSTHDR (&msgh);
cmsg->cmsg_type = IP_PKTINFO;
cmsg->cmsg_level = IPPROTO_IP;
cmsg->cmsg_len = CMSG_LEN (sizeof (*p));
p = (struct in_pktinfo *) CMSG_DATA (cmsg);
p->ipi_spec_dst = *(struct in_addr *)src;
#elif defined IP_SENDSRCADDR
struct in_addr *p = NULL;
msgh.msg_control = cbuf;
msgh.msg_controllen = CMSG_SPACE (sizeof (*p));
cmsg = CMSG_FIRSTHDR (&msgh);
cmsg->cmsg_type = IP_SENDSRCADDR;
cmsg->cmsg_level = IPPROTO_IP;
cmsg->cmsg_len = CMSG_LEN (sizeof (*p));
p = (struct in_addr *)CMSG_DATA (cmsg);
p->s_addr = *(struct in_addr *)src;
#endif
msgh.msg_flags = 0;
msgh.msg_controllen = cmsg ? cmsg->cmsg_len : 0;
return sendmsg (s, &msgh, 0);
}
ssize_t socket_send6(int s,const char *buf,size_t len,const char ip[16],uint16 port,uint32 scope_id)
{
#ifdef LIBC_HAS_IP6
struct sockaddr_in6 si;
#else
struct sockaddr_in si;
#endif
byte_zero(&si,sizeof si);
#ifdef LIBC_HAS_IP6
if (noipv6) {
#endif
if (ip6_isv4mapped(ip))
return socket_send4(s,buf,len,ip+12,port);
if (byte_equal(ip,16,V6loopback))
return socket_send4(s,buf,len,ip4loopback,port);
#ifdef LIBC_HAS_IP6
errno=EPROTONOSUPPORT;
return -1;
}
si.sin6_family = AF_INET6;
uint16_pack_big((char *) &si.sin6_port,port);
byte_copy((char *) &si.sin6_addr,16,ip);
#ifdef LIBC_HAS_SCOPE_ID
si.sin6_scope_id=scope_id;
#else
si.sin6_scope_id=0;
#endif
return winsock2errno(sendto(s,buf,len,0,(void*) &si,sizeof si));
#else
errno=EPROTONOSUPPORT;
return -1;
#endif
}
static void trig (uint16 id, char what, char info)
{
char pack[4] ;
unixmessage_t m = { .s = pack, .len = 4, .fds = 0, .nfds = 0 } ;
uint16_pack_big(pack, id) ;
pack[2] = what ; pack[3] = info ;
if (!unixmessage_put(unixmessage_sender_x, &m))
{
cleanup() ;
strerr_diefu1sys(111, "build answer") ;
}
}
static void answer (char c)
{
unixmessage_t m = { .s = &c, .len = 1, .fds = 0, .nfds = 0 } ;
if (!unixmessage_put(unixmessage_sender_1, &m))
{
cleanup() ;
strerr_diefu1sys(111, "unixmessage_put") ;
}
}
static void remove (unsigned int i)
{
ftrigio_deepfree(a + i) ;
a[i] = a[--n] ;
a[i].b.c.x = a[i].buf ;
}
int ftrigr_unsubscribe (ftrigr_ref a, uint16 i, tain_t const *deadline, tain_t *stamp)
{
ftrigr1_t *p ;
if (!i--) return (errno = EINVAL, 0) ;
p = GENSETDYN_P(ftrigr1_t, &a->data, i) ;
if (!p) return (errno = EINVAL, 0) ;
switch (p->state)
{
case FR1STATE_WAITACK :
case FR1STATE_WAITACKDATA :
{
char dummy ;
ftrigr_check(a, i+1, &dummy) ;
return 1 ;
}
default : break ;
}
{
char err ;
char pack[3] = "--U" ;
uint16_pack_big(pack, i) ;
if (!skaclient_send(&a->connection, pack, 3, &skaclient_default_cb, &err, deadline, stamp)) return 0 ;
if (err) return (errno = err, 0) ;
}
*p = ftrigr1_zero ;
return gensetdyn_delete(&a->data, i) ;
}
int socket_send6(int s,const char *buf,unsigned int len,const char ip[16],uint16 port,uint32 scope_id)
{
#ifdef LIBC_HAS_IP6
struct sockaddr_in6 sa;
#else
struct sockaddr_in sa;
#endif
byte_zero(&sa,sizeof sa);
#ifdef LIBC_HAS_IP6
if (noipv6) {
#endif
if (ip6_isv4mapped(ip))
return socket_send4(s,buf,len,ip+12,port);
if (byte_equal(ip,16,V6loopback))
return socket_send4(s,buf,len,ip4loopback,port);
#ifdef LIBC_HAS_IP6
errno=error_proto;
return -1;
}
sa.sin6_family = AF_INET6;
uint16_pack_big((char *) &sa.sin6_port,port);
byte_copy((char *) &sa.sin6_addr,16,ip);
return sendto(s,buf,len,0,(struct sockaddr *) &sa,sizeof sa);
#else
errno=error_proto;
return -1;
#endif
}
int response_addname(char *d)
{
unsigned int dlen;
unsigned int i;
char buf[2];
dlen = dns_domain_length(d);
while (*d) {
for (i = 0;i < name_num;++i)
if (dns_domain_equal(d,name[i])) {
uint16_pack_big(buf,49152 + name_ptr[i]);
return response_addbytes(buf,2);
}
if (dlen <= 128)
if (name_num < NAMES) {
byte_copy(name[name_num],dlen,d);
name_ptr[name_num] = response_len;
++name_num;
}
i = (unsigned char) *d;
++i;
if (!response_addbytes(d,i)) return 0;
d += i;
dlen -= i;
}
return response_addbytes(d,1);
}
void
response_rfinish (int x)
{
uint16_pack_big (response + dpos - 2, response_len - dpos);
if (!++response[x + 1])
++response[x];
}
unsigned int ip6_scan (char const *s, char *ip6)
{
static const unsigned char class[256] = "2222222222222222222222222222222222222222222222220000000000122222200000022222222222222222222222222000000222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222" ;
static const unsigned char table[5][3] = { "\024#\005", "\024\"\005", "\024\005\006", "\005\002\005", "\024\t\016" } ;
uint16 tmp[8] = { 0, 0, 0, 0, 0, 0, 0, 0 } ;
unsigned int pos = 8, j = 0, state = 0, i = 0 ;
while (state < 5)
{
register unsigned char c = table[state][class[(unsigned char)s[i]] - '0'] ;
state = c & 7 ;
if (c & 0x20) { if (pos < 8) state = 5 ; else pos = j ; }
if (c & 0x10)
{
if (tmp[j] & 0xf000) state = 5 ;
else tmp[j] = (tmp[j] << 4) + fmtscan_num(s[i], 16) ;
}
if (c & 0x08) if ((++j > 7) && (state < 5)) state = 5 ;
i++ ;
}
if (((pos < 8) && (j > 6)) || ((pos == 8) && (j < 8))) state = 5 ;
if (state == 5) return (errno = EINVAL, 0) ;
for (state = j ; state > pos ; state--) tmp[state - j + 7] = tmp[state - 1] ;
for (; state < pos + 8 - j ; state++) tmp[state] = 0 ;
for (j = 0 ; j < 8 ; j++) uint16_pack_big(ip6 + (j<<1), tmp[j]) ;
return i - 1 ;
}
int dns_transmit_start(struct dns_transmit *d,const char servers[64],int flagrecursive,const char *q,const char qtype[2],const char localip[4])
{
unsigned int len;
dns_transmit_free(d);
errno = error_io;
len = dns_domain_length(q);
d->querylen = len + 18;
d->query = alloc(d->querylen);
if (!d->query) return -1;
uint16_pack_big(d->query,len + 16);
byte_copy(d->query + 2,12,flagrecursive ? "\0\0\1\0\0\1\0\0\0\0\0\0" : "\0\0\0\0\0\1\0\0\0\0\0\0gcc-bug-workaround");
byte_copy(d->query + 14,len,q);
byte_copy(d->query + 14 + len,2,qtype);
byte_copy(d->query + 16 + len,2,DNS_C_IN);
byte_copy(d->qtype,2,qtype);
d->servers = servers;
byte_copy(d->localip,4,localip);
d->udploop = flagrecursive ? 1 : 0;
if (len + 16 > 512) return firsttcp(d);
return firstudp(d);
}
int socket_connect6(int s,const char ip[16],uint16 port,uint32 scope_id)
{
#ifdef LIBC_HAS_IP6
struct sockaddr_in6 sa;
if (noipv6) {
#endif
if (ip6_isv4mapped(ip))
return socket_connect4(s,ip+12,port);
if (byte_equal(ip,16,V6loopback))
return socket_connect4(s,ip4loopback,port);
#ifdef LIBC_HAS_IP6
}
byte_zero(&sa,sizeof sa);
sa.sin6_family = PF_INET6;
uint16_pack_big((char *) &sa.sin6_port,port);
sa.sin6_flowinfo = 0;
sa.sin6_scope_id = scope_id;
byte_copy((char *) &sa.sin6_addr,16,ip);
return connect(s,(struct sockaddr *) &sa,sizeof sa);
#else
errno=EPROTONOSUPPORT;
return -1;
#endif
}
void print(char *buf,unsigned int len)
{
char tcpheader[2];
uint16_pack_big(tcpheader,len);
buffer_put(&netwrite,tcpheader,2);
buffer_put(&netwrite,buf,len);
buffer_flush(&netwrite);
}
int socket_bind6 (int s, char const *ip6, uint16 port)
{
struct sockaddr_in6 sa ;
byte_zero(&sa, sizeof sa) ;
sa.sin6_family = AF_INET6 ;
uint16_pack_big((char *)&sa.sin6_port, port) ;
byte_copy(sa.sin6_addr.s6_addr, 16, ip6) ;
return bind(s, (struct sockaddr *)&sa, sizeof sa) ;
}
ssize_t socket_send4(int s,const char *buf,size_t len,const char ip[4],uint16 port) {
struct sockaddr_in si;
byte_zero(&si,sizeof si);
si.sin_family = AF_INET;
uint16_pack_big((char*) &si.sin_port,port);
*((uint32*)&si.sin_addr) = *((uint32*)ip);
return winsock2errno(sendto(s,buf,len,0,(void*) &si,sizeof si));
}
int
socket_connect4(int s, const char* ip, uint16 port) {
struct sockaddr_in si;
byte_zero(&si, sizeof(si));
si.sin_family = AF_INET;
uint16_pack_big((char*)&si.sin_port, port);
*((uint32*)&si.sin_addr) = *((uint32*)ip);
return winsock2errno(connect(s, (struct sockaddr*)&si, sizeof(si)));
}
static void trig (uint16 id, char what, char info)
{
char pack[7] = "4:idwi," ;
uint16_pack_big(pack+2, id) ;
pack[4] = what ; pack[5] = info ;
if (!bufalloc_put(&asyncout, pack, 7))
{
cleanup() ;
strerr_diefu1sys(111, "build answer") ;
}
}
int socket_send4(int s,const char *buf,int len,const char ip[4],uint16 port)
{
struct sockaddr_in sa;
byte_zero(&sa,sizeof sa);
sa.sin_family = AF_INET;
uint16_pack_big((char *) &sa.sin_port,port);
byte_copy((char *) &sa.sin_addr,4,ip);
return sendto(s,buf,len,0,(struct sockaddr *) &sa,sizeof sa);
}
int socket_connect4(int s,const char ip[4],uint16 port)
{
struct sockaddr_in sa;
byte_zero(&sa,sizeof sa);
sa.sin_family = AF_INET;
uint16_pack_big((char *) &sa.sin_port,port);
byte_copy((char *) &sa.sin_addr,4,ip);
return connect(s,(struct sockaddr *) &sa,sizeof sa);
}
int socket_send6 (int s, char const *buf, unsigned int len, char const *ip6, uint16 port)
{
struct sockaddr_in6 sa ;
register int r ;
byte_zero((char *)&sa, sizeof sa) ;
sa.sin6_family = AF_INET6 ;
uint16_pack_big((char *)&sa.sin6_port, port) ;
byte_copy(sa.sin6_addr.s6_addr, 16, ip6) ;
do r = sendto(s, buf, len, 0, (struct sockaddr *)&sa, sizeof sa) ;
while ((r == -1) && (errno == EINTR)) ;
return r ;
}
void s6_svstatus_pack (char *pack, s6_svstatus_t const *sv)
{
tain_pack(pack, &sv->stamp) ;
tain_pack(pack + 12, &sv->readystamp) ;
uint64_pack_big(pack + 24, (uint64)sv->pid) ;
uint16_pack_big(pack + 32, (uint16)sv->wstat) ;
pack[34] =
sv->flagpaused |
(sv->flagfinishing << 1) |
(sv->flagwant << 2) |
(sv->flagwantup << 3) |
(sv->flagready << 4) ;
}
int socket_connect6 (int s, char const *ip6, uint16 port)
{
struct sockaddr_in6 sa ;
register int r ;
byte_zero(&sa, sizeof sa) ;
sa.sin6_family = AF_INET6 ;
uint16_pack_big((char *)&sa.sin6_port,port) ;
byte_copy((char *)sa.sin6_addr.s6_addr, 16, ip6) ;
do r = connect(s, (struct sockaddr *)&sa, sizeof sa) ;
while ((r == -1) && (errno == EINTR)) ;
if ((r == -1) && (errno == EALREADY)) errno = EINPROGRESS ;
return r ;
}
int socket_send4_tcp(int s, const char *buf, int len)
{
struct iovec iov[2];
char len_[2];
int iovcnt;
uint16_pack_big(len_, (unsigned short)len);
iov[0].iov_base = len_;
iov[0].iov_len = 2;
iov[1].iov_base = buf;
iov[1].iov_len = len;
iovcnt = sizeof(iov) / sizeof(struct iovec);
return writev(s, iov, iovcnt);
}
void t_respond(int j)
{
if (!t[j].active) return;
log_querydone(&t[j].active,response_len);
response_id(t[j].id);
t[j].len = response_len + 2;
t_free(j);
t[j].buf = alloc(response_len + 2);
if (!t[j].buf) { t_close(j); return; }
uint16_pack_big(t[j].buf,response_len);
byte_copy(t[j].buf + 2,response_len,response);
t[j].pos = 0;
t[j].state = -1;
}
int s6lock_release (s6lock_t *a, uint16 i, tain_t const *deadline, tain_t *stamp)
{
char *p = GENSETDYN_P(char, &a->data, i) ;
if ((*p != EBUSY) && !error_isagain(*p))
{
s6lock_check(a, i) ;
return 1 ;
}
{
char err ;
char pack[3] = "-->" ;
uint16_pack_big(pack, i) ;
if (!skaclient_send(&a->connection, pack, 3, &skaclient_default_cb, &err, deadline, stamp)) return 0 ;
if (err) return (errno = err, 0) ;
}
*p = EINVAL ;
return gensetdyn_delete(&a->data, i) ;
}
int
parsetype (char *s, char type[2])
{
unsigned long u = 0;
if (!s[scan_ulong (s, &u)])
uint16_pack_big (type, u);
else if (case_equals (s, "any"))
byte_copy (type, 2, DNS_T_ANY);
else if (case_equals (s, "a"))
byte_copy (type, 2, DNS_T_A);
else if (case_equals (s, "ns"))
byte_copy (type, 2, DNS_T_NS);
else if (case_equals (s, "mx"))
byte_copy (type, 2, DNS_T_MX);
else if (case_equals (s, "ptr"))
byte_copy (type, 2, DNS_T_PTR);
else if (case_equals (s, "txt"))
byte_copy (type, 2, DNS_T_TXT);
else if (case_equals (s, "cname"))
byte_copy (type, 2, DNS_T_CNAME);
else if (case_equals (s, "soa"))
byte_copy (type, 2, DNS_T_SOA);
else if (case_equals (s, "hinfo"))
byte_copy (type, 2, DNS_T_HINFO);
else if (case_equals (s, "rp"))
byte_copy (type,2,DNS_T_RP);
else if (case_equals (s, "sig"))
byte_copy (type, 2, DNS_T_SIG);
else if (case_equals (s, "key"))
byte_copy (type, 2, DNS_T_KEY);
else if (case_equals (s, "aaaa"))
byte_copy (type, 2, DNS_T_AAAA);
else if (case_equals (s, "axfr"))
byte_copy (type,2,DNS_T_AXFR);
else
return 0;
return 1;
}
int
build (stralloc *sa, char *q, int flagsoa, char id[2])
{
char ttl[4];
char ttd[8];
char type[2];
char misc[20];
char recordloc[2];
struct tai cutoff;
unsigned int rdatapos = 0;
dpos = 0;
copy (type, 2);
if (flagsoa)
if (byte_diff (type, 2, DNS_T_SOA))
return 0;
if (!flagsoa)
if (byte_equal (type, 2, DNS_T_SOA))
return 0;
if (!stralloc_copyb (sa, id, 2))
err (-1, "could not allocate enough memory");
if (!stralloc_catb (sa, "\204\000\0\0\0\1\0\0\0\0", 10))
err (-1, "could not allocate enough memory");
copy (misc, 1);
if ((misc[0] == '=' + 1) || (misc[0] == '*' + 1))
{
--misc[0];
copy (recordloc, 2);
if (byte_diff (recordloc, 2, clientloc))
return 0;
}
if (misc[0] == '*')
{
if (flagsoa)
return 0;
if (!stralloc_catb (sa, "\1*", 2))
err (-1, "could not allocate enough memory");
}
if (!stralloc_catb (sa, q, dns_domain_length (q)))
err (-1, "could not allocate enough memory");
if (!stralloc_catb (sa, type, 2))
err (-1, "could not allocate enough memory");
copy (ttl, 4);
copy (ttd, 8);
if (byte_diff (ttd, 8, "\0\0\0\0\0\0\0\0"))
{
tai_unpack (ttd, &cutoff);
if (byte_equal (ttl, 4, "\0\0\0\0"))
{
if (tai_less (&cutoff, &now))
return 0;
uint32_pack_big (ttl, 2);
}
else
if (!tai_less (&cutoff, &now))
return 0;
}
if (!stralloc_catb (sa, DNS_C_IN, 2))
err (-1, "could not allocate enough memory");
if (!stralloc_catb (sa, ttl, 4))
err (-1, "could not allocate enough memory");
if (!stralloc_catb(sa,"\0\0",2))
err (-1, "could not allocate enough memory");
rdatapos = sa->len;
if (byte_equal (type, 2, DNS_T_SOA))
{
doname (sa);
doname (sa);
copy (misc, 20);
if (!stralloc_catb (sa, misc, 20))
err (-1, "could not allocate enough memory");
}
else if (byte_equal (type, 2, DNS_T_NS)
|| byte_equal (type, 2, DNS_T_PTR)
|| byte_equal (type, 2, DNS_T_CNAME))
{
doname (sa);
}
else if (byte_equal (type, 2, DNS_T_MX))
{
copy (misc, 2);
if (!stralloc_catb (sa, misc, 2))
err (-1, "could not allocate enough memory");
doname (sa);
}
else
{
if (!stralloc_catb (sa, data + dpos, dlen - dpos))
err (-1, "could not allocate enough memory");
}
if (sa->len > 65535)
errx (-1, "could not read from file `data.cdb': format error");
uint16_pack_big (sa->s + rdatapos - 2, sa->len - rdatapos);
return 1;
}
int main()
{
int fddata;
int i;
int j;
int k;
char ch;
unsigned long ttl;
char ttd[8];
char loc[2];
unsigned long u;
char ip[4];
char ip6[16];
char type[2];
char soa[20];
char buf[4];
umask(022);
fddata = open_read("data");
if (fddata == -1)
strerr_die2sys(111,FATAL,"unable to open data: ");
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();
while (match) {
++linenum;
if (getln(&b,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,"unable to read line: ");
while (line.len) {
ch = line.s[line.len - 1];
if ((ch != ' ') && (ch != '\t') && (ch != '\n')) break;
--line.len;
}
if (!line.len) continue;
if (line.s[0] == '#') continue;
if (line.s[0] == '-') continue;
j = 1;
for (i = 0;i < NUMFIELDS;++i) {
if (j >= line.len) {
if (!stralloc_copys(&f[i],"")) nomem();
}
else {
k = byte_chr(line.s + j,line.len - j,':');
if (!stralloc_copyb(&f[i],line.s + j,k)) nomem();
j += k + 1;
}
}
switch(line.s[0]) {
case '%':
locparse(&f[0],loc);
if (!stralloc_copyb(&key,"\0%",2)) nomem();
if (!stralloc_0(&f[1])) nomem();
ipprefix_cat(&key,f[1].s);
if (cdb_make_add(&cdb,key.s,key.len,loc,2) == -1)
die_datatmp();
break;
case 'Z':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&u)) uint32_unpack_big(defaultsoa,&u);
uint32_pack_big(soa,u);
if (!stralloc_0(&f[4])) nomem();
if (!scan_ulong(f[4].s,&u)) uint32_unpack_big(defaultsoa + 4,&u);
uint32_pack_big(soa + 4,u);
if (!stralloc_0(&f[5])) nomem();
if (!scan_ulong(f[5].s,&u)) uint32_unpack_big(defaultsoa + 8,&u);
uint32_pack_big(soa + 8,u);
if (!stralloc_0(&f[6])) nomem();
if (!scan_ulong(f[6].s,&u)) uint32_unpack_big(defaultsoa + 12,&u);
uint32_pack_big(soa + 12,u);
if (!stralloc_0(&f[7])) nomem();
if (!scan_ulong(f[7].s,&u)) uint32_unpack_big(defaultsoa + 16,&u);
uint32_pack_big(soa + 16,u);
if (!stralloc_0(&f[8])) nomem();
if (!scan_ulong(f[8].s,&ttl)) ttl = TTL_NEGATIVE;
ttdparse(&f[9],ttd);
locparse(&f[10],loc);
rr_start(DNS_T_SOA,ttl,ttd,loc);
if (!dns_domain_fromdot(&d2,f[1].s,f[1].len)) nomem();
rr_addname(d2);
if (!dns_domain_fromdot(&d2,f[2].s,f[2].len)) nomem();
rr_addname(d2);
rr_add(soa,20);
rr_finish(d1);
break;
case '.': case '&':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&ttl)) ttl = TTL_NS;
ttdparse(&f[4],ttd);
locparse(&f[5],loc);
if (!stralloc_0(&f[1])) nomem();
if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) {
if (!stralloc_cats(&f[2],".ns.")) 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 (line.s[0] == '.') {
rr_start(DNS_T_SOA,ttl ? TTL_NEGATIVE : 0,ttd,loc);
rr_addname(d2);
rr_add("\12hostmaster",11);
rr_addname(d1);
rr_add(defaultsoa,20);
rr_finish(d1);
}
rr_start(DNS_T_NS,ttl,ttd,loc);
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 '=':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
locparse(&f[4],loc);
if (!stralloc_0(&f[1])) nomem();
if (ip4_scan(f[1].s,ip)) {
rr_start(DNS_T_A,ttl,ttd,loc);
rr_add(ip,4);
rr_finish(d1);
if (line.s[0] == '=') {
dns_name4_domain(dptr,ip);
rr_start(DNS_T_PTR,ttl,ttd,loc);
rr_addname(d1);
rr_finish(dptr);
}
}
break;
case '6': case '3':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
locparse(&f[4],loc);
if (!stralloc_0(&f[1])) nomem();
if (ip6_scan_flat(f[1].s,ip6)) {
rr_start(DNS_T_AAAA,ttl,ttd,loc);
rr_add(ip6,16);
rr_finish(d1);
if (line.s[0] == '6') { /* emit both .ip6.arpa and .ip6.int */
dns_name6_domain(d6ptr,ip6,DNS_IP6_ARPA);
rr_start(DNS_T_PTR,ttl,ttd,loc);
rr_addname(d1);
rr_finish(d6ptr);
dns_name6_domain(d6ptr,ip6,DNS_IP6_INT);
rr_start(DNS_T_PTR,ttl,ttd,loc);
rr_addname(d1);
rr_finish(d6ptr);
}
}
break;
case '@':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[4])) nomem();
if (!scan_ulong(f[4].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[5],ttd);
locparse(&f[6],loc);
if (!stralloc_0(&f[1])) nomem();
if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) {
if (!stralloc_cats(&f[2],".mx.")) 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[3])) nomem();
if (!scan_ulong(f[3].s,&u)) u = 0;
rr_start(DNS_T_MX,ttl,ttd,loc);
uint16_pack_big(buf,u);
rr_add(buf,2);
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();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
locparse(&f[4],loc);
if (line.s[0] == 'C')
rr_start(DNS_T_CNAME,ttl,ttd,loc);
else
rr_start(DNS_T_PTR,ttl,ttd,loc);
rr_addname(d2);
rr_finish(d1);
break;
case '\'':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
locparse(&f[4],loc);
rr_start(DNS_T_TXT,ttl,ttd,loc);
txtparse(&f[1]);
i = 0;
while (i < f[1].len) {
k = f[1].len - i;
if (k > 127) k = 127;
ch = k;
rr_add(&ch,1);
rr_add(f[1].s + i,k);
i += k;
}
rr_finish(d1);
break;
case ':':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[4],ttd);
locparse(&f[5],loc);
if (!stralloc_0(&f[1])) nomem();
scan_ulong(f[1].s,&u);
uint16_pack_big(type,u);
if (byte_equal(type,2,DNS_T_AXFR))
syntaxerror(": type AXFR prohibited");
if (byte_equal(type,2,"\0\0"))
syntaxerror(": type 0 prohibited");
if (byte_equal(type,2,DNS_T_SOA))
syntaxerror(": type SOA prohibited");
if (byte_equal(type,2,DNS_T_NS))
syntaxerror(": type NS prohibited");
if (byte_equal(type,2,DNS_T_CNAME))
syntaxerror(": type CNAME prohibited");
if (byte_equal(type,2,DNS_T_PTR))
syntaxerror(": type PTR prohibited");
if (byte_equal(type,2,DNS_T_MX))
syntaxerror(": type MX prohibited");
txtparse(&f[2]);
rr_start(type,ttl,ttd,loc);
rr_add(f[2].s,f[2].len);
rr_finish(d1);
break;
default:
syntaxerror(": unrecognized leading character");
}
}
if (cdb_make_finish(&cdb) == -1) die_datatmp();
if (fsync(fdcdb) == -1) die_datatmp();
if (close(fdcdb) == -1) die_datatmp(); /* NFS stupidity */
if (rename("data.tmp","data.cdb") == -1)
strerr_die2sys(111,FATAL,"unable to move data.tmp to data.cdb: ");
_exit(0);
}
int main(int argc, char **argv)
{
int fddata;
uint32 loc;
//int v;
char ipa[4];
//char ipb[4];
//ip4_cidr_t *subnets = (ip4_cidr_t *)NULL;
//unsigned int slen = 0;
uint32 ipinta = 0U;
//unsigned int ipintb = 0;
unsigned short mask;
uint32 uid = 0;
uint32 mid = 0;
int i;
int j;
int k;
char ch;
unsigned long ttl;
char ttd[8];
//uint32 loc;
unsigned char keyloc[15];
unsigned long u;
char ip[4];
char locp[4];
//char map[9];
char type[2];
char soa[20];
char buf[4];
//int namlen = 0;
umask(022);
fddata = STDIN_FILENO;
if (argc != 3) {
fddata = open_read("data");
if (fddata == -1) strerr_die2sys(111,FATAL,"unable to open data: ");
if ( (fdcdb = open_trunc("data.tmp")) == -1) die_datatmp();
} else {
fddata = STDIN_FILENO;
if ( (fdcdb = open_trunc(argv[1])) == -1) die_datatmp();
}
defaultsoa_init(fddata);
buffer_init(&b,buffer_unixread,fddata,bspace,sizeof bspace);
if (cdb_make_start(&cdb,fdcdb) == -1) die_datatmp();
while (match) {
++linenum;
if (getln(&b,&line,&match,'\n') == -1)
strerr_die2sys(111,FATAL,"unable to read line: ");
while (line.len) {
ch = line.s[line.len - 1];
if ((ch != ' ') && (ch != '\t') && (ch != '\n')) break;
--line.len;
}
if (!line.len) continue;
if (line.s[0] == '#') continue;
if (line.s[0] == '-') continue;
//write(1,line.s,line.len);
//write(1,"\n",1);
j = 1;
for (i = 0;i < NUMFIELDS;++i) {
if (j >= line.len) {
if (!stralloc_copys(&f[i],"")) nomem();
}
else {
k = byte_chr(line.s + j,line.len - j,':');
if (!stralloc_copyb(&f[i],line.s + j,k)) nomem();
j += k + 1;
}
}
switch(line.s[0]) {
#ifdef USE_LOCMAPS
case '%':
//locparse(&f[0],loc);
loc = gethash(f[0].s,f[0].len);
uint32_pack(locp,loc);
if (!stralloc_0(&f[1])) nomem();
if (!stralloc_0(&f[2])) nomem();
ip4_scan(f[1].s,ipa);
//ip4_scan(f[2].s,ipb);
scan_ushort(f[2].s,&mask);
ip4_num(&ipinta,ipa);
//ip4_num(&ipintb,ipb);
//if (ipintb<ipinta) nomem();
//if (ip4_deaggregate(ipinta,ipintb,&subnets,&slen) <= 0) nomem();
mid = gethash(f[3].s,f[3].len);
uid = gethash(f[4].s,f[4].len);
//for (v = 0; v < slen; v++) {
ipdb_key4build(keyloc,ipinta,(unsigned char )mask&0xff,mid,uid);
//ipdb_key_from_uint(keyloc,ipinta,(unsigned char )mask&0xff,0,mid,uid);
cdb_make_add(&cdb,keyloc,15,locp,4);
//}
uid = 0;
//alloc_free(subnets);
//subnets = NULL;
//slen = 0;
byte_zero(ipa,4);ipinta=0; //byte_zero(ipb,4);ipinta=0;ipintb=0;
break;
#endif
case 'Z':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&u)) uint32_unpack_big(defaultsoa,&u);
uint32_pack_big(soa,u);
if (!stralloc_0(&f[4])) nomem();
if (!scan_ulong(f[4].s,&u)) uint32_unpack_big(defaultsoa + 4,&u);
uint32_pack_big(soa + 4,u);
if (!stralloc_0(&f[5])) nomem();
if (!scan_ulong(f[5].s,&u)) uint32_unpack_big(defaultsoa + 8,&u);
uint32_pack_big(soa + 8,u);
if (!stralloc_0(&f[6])) nomem();
if (!scan_ulong(f[6].s,&u)) uint32_unpack_big(defaultsoa + 12,&u);
uint32_pack_big(soa + 12,u);
if (!stralloc_0(&f[7])) nomem();
if (!scan_ulong(f[7].s,&u)) uint32_unpack_big(defaultsoa + 16,&u);
uint32_pack_big(soa + 16,u);
if (!stralloc_0(&f[8])) nomem();
if (!scan_ulong(f[8].s,&ttl)) ttl = TTL_NEGATIVE;
ttdparse(&f[9],ttd);
loc = gethash(f[10].s,f[10].len);
mid = gethash(f[11].s,f[11].len);
uid = gethash(f[12].s,f[12].len);
rr_addloq(DNS_T_SOA,d1,loc,mid,uid);
rr_start(DNS_T_SOA,ttl,ttd,loc);
if (!dns_domain_fromdot(&d2,f[1].s,f[1].len)) nomem();
rr_addname(d2);
if (!dns_domain_fromdot(&d2,f[2].s,f[2].len)) nomem();
rr_addname(d2);
rr_add(soa,20);
rr_finish(d1);
break;
case '.': case '&':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&ttl)) ttl = TTL_NS;
ttdparse(&f[4],ttd);
loc = gethash(f[5].s,f[5].len);
mid = gethash(f[6].s,f[6].len);
uid = gethash(f[7].s,f[7].len);
if (!stralloc_0(&f[1])) nomem();
if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) {
if (!stralloc_cats(&f[2],".ns.")) 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 (line.s[0] == '.') {
rr_start(DNS_T_SOA,ttl ? TTL_NEGATIVE : 0,ttd,loc);
rr_addloq(DNS_T_SOA,d1,loc,mid,uid);
rr_addname(d2);
rr_add("\12hostmaster",11);
rr_addname(d1);
rr_add(defaultsoa,20);
rr_finish(d1);
}
rr_start(DNS_T_NS,ttl,ttd,loc);
rr_addname(d2);
rr_addloq(DNS_T_NS,d2,loc,mid,uid);
rr_finish(d1);
if (ip4_scan(f[1].s,ip)) {
rr_start(DNS_T_A,ttl,ttd,loc);
rr_addloq(DNS_T_A,d2,loc,mid,uid);
rr_add(ip,4);
rr_finish(d2);
}
break;
case '+': case '=':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
loc = gethash(f[4].s,f[4].len);
mid = gethash(f[5].s,f[5].len);
uid = gethash(f[6].s,f[6].len);
if (!stralloc_0(&f[1])) nomem();
if (ip4_scan(f[1].s,ip)) {
rr_addloq(DNS_T_A,d1,loc,mid,uid);
rr_start(DNS_T_A,ttl,ttd,loc);
//dbger("+addloq:d=%s,loc=%u,uid=%u,mid=%u",d1,loc,uid,mid);
rr_add(ip,4);
rr_finish(d1);
if (line.s[0] == '=') {
rr_addloq(DNS_T_PTR,d1,loc,mid,uid); //??????????????????/ TODO: checkthis
dns_name4_domain(dptr,ip);
rr_start(DNS_T_PTR,ttl,ttd,loc);
rr_addname(d1);
rr_finish(dptr);
}
}
break;
case '@':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[4])) nomem();
if (!scan_ulong(f[4].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[5],ttd);
loc = gethash(f[6].s,f[6].len);
mid = gethash(f[7].s,f[7].len);
uid = gethash(f[8].s,f[8].len);
if (!stralloc_0(&f[1])) nomem();
if (byte_chr(f[2].s,f[2].len,'.') >= f[2].len) {
if (!stralloc_cats(&f[2],".mx.")) 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[3])) nomem();
if (!scan_ulong(f[3].s,&u)) u = 0;
rr_addloq(DNS_T_MX,d1,loc,mid,uid);
rr_start(DNS_T_MX,ttl,ttd,loc);
uint16_pack_big(buf,u);
rr_add(buf,2);
rr_addname(d2);
rr_finish(d1);
if (ip4_scan(f[1].s,ip)) {
rr_addloq(DNS_T_A,d2,loc,mid,uid);
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();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
loc = gethash(f[4].s,f[4].len);
mid = gethash(f[5].s,f[5].len);
uid = gethash(f[6].s,f[6].len);
if (line.s[0] == 'C') {
//rr_addloq(DNS_T_CNAME,d1,loc,mid,uid);
//dbger("add loq for cname!");
rr_addloq(DNS_T_A,d1,loc,mid,uid);
rr_addloq(DNS_T_CNAME,d1,loc,mid,uid);
rr_start(DNS_T_CNAME,ttl,ttd,loc);
} else {
rr_addloq(DNS_T_PTR,d1,loc,mid,uid);
rr_start(DNS_T_PTR,ttl,ttd,loc);
}
rr_addname(d2);
rr_finish(d1);
break;
case '\'':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[2])) nomem();
if (!scan_ulong(f[2].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[3],ttd);
loc = gethash(f[4].s,f[4].len);
mid = gethash(f[5].s,f[5].len);
uid = gethash(f[6].s,f[6].len);
rr_addloq(DNS_T_TXT,d1,loc,mid,uid);
rr_start(DNS_T_TXT,ttl,ttd,loc);
txtparse(&f[1]);
i = 0;
while (i < f[1].len) {
k = f[1].len - i;
if (k > 127) k = 127;
ch = k;
rr_add(&ch,1);
rr_add(f[1].s + i,k);
i += k;
}
rr_finish(d1);
break;
case ':':
if (!dns_domain_fromdot(&d1,f[0].s,f[0].len)) nomem();
if (!stralloc_0(&f[3])) nomem();
if (!scan_ulong(f[3].s,&ttl)) ttl = TTL_POSITIVE;
ttdparse(&f[4],ttd);
loc = gethash(f[5].s,f[5].len);
mid = gethash(f[6].s,f[6].len);
uid = gethash(f[7].s,f[7].len);
if (!stralloc_0(&f[1])) nomem();
scan_ulong(f[1].s,&u);
uint16_pack_big(type,u);
if (byte_equal(type,2,DNS_T_AXFR))
syntaxerror(": type AXFR prohibited");
if (byte_equal(type,2,"\0\0"))
syntaxerror(": type 0 prohibited");
if (byte_equal(type,2,DNS_T_SOA))
syntaxerror(": type SOA prohibited");
if (byte_equal(type,2,DNS_T_NS))
syntaxerror(": type NS prohibited");
if (byte_equal(type,2,DNS_T_CNAME))
syntaxerror(": type CNAME prohibited");
if (byte_equal(type,2,DNS_T_PTR))
syntaxerror(": type PTR prohibited");
if (byte_equal(type,2,DNS_T_MX))
syntaxerror(": type MX prohibited");
txtparse(&f[2]);
rr_addloq(type,d1,loc,mid,uid);
rr_start(type,ttl,ttd,loc);
rr_add(f[2].s,f[2].len);
rr_finish(d1);
break;
default:
dienow("error here: %s\n", line.s);
syntaxerror(": unrecognized leading character");
}
}
if (cdb_make_finish(&cdb) == -1) die_datatmp();
if (fsync(fdcdb) == -1) die_datatmp();
if (close(fdcdb) == -1) die_datatmp(); /* NFS stupidity */
if (argc == 3) {
if (rename(argv[1],argv[2]) == -1) strerr_die2sys(111,FATAL,"unable to move data.tmp to data.cdb: ");
} else {
if (rename("data.tmp","data.cdb") == -1) strerr_die2sys(111,FATAL,"unable to move data.tmp to data.cdb: ");
}
_exit(0);
}
int
main(int argc, char *argv[])
{
int fddata = 0;
unsigned int i = 0, j = 0, k = 0;
unsigned long u = 0;
unsigned long ttl = 0;
char ch = 0;
char *x = NULL;
char ttd[8], loc[2];
char ip[4], type[2];
char soa[20], buf[4];
prog = strdup ((x = strrchr (argv[0], '/')) != NULL ? x + 1 : argv[0]);
i = check_option (argc, argv);
argv += i;
argc -= i;
umask(022);
if ((fddata = open_read ("data")) == -1)
err (-1, "could not open file `data'");
defaultsoa_init (fddata);
buffer_init (&b, buffer_unixread, fddata, bspace, sizeof bspace);
if ((fdcdb = open_trunc ("data.tmp")) == -1)
err (-1, "could not create file `data.tmp'");
if (cdb_make_start (&cdb, fdcdb) == -1)
err (-1, "could not create file `data.tmp'");
while (match)
{
linenum++;
if (getln (&b, &line, &match, '\n') == -1)
err (-1, "could not read line: %ld", linenum);
while (line.len)
{
ch = line.s[line.len - 1];
if ((ch != ' ') && (ch != '\t') && (ch != '\n'))
break;
--line.len;
}
if (!line.len)
continue;
if (line.s[0] == '#')
continue;
if (line.s[0] == '-')
continue;
j = 1;
for (i = 0; i < NUMFIELDS; i++)
{
if (j >= line.len)
{
if (!stralloc_copys (&f[i], ""))
err (-1, "could not allocate enough memory");
}
else
{
k = byte_chr (line.s + j, line.len - j, ':');
if (!stralloc_copyb (&f[i], line.s + j, k))
err (-1, "could not allocate enough memory");
j += k + 1;
}
}
switch (line.s[0])
{
case '%':
locparse (&f[0], loc);
if (!stralloc_copyb (&key, "\0%", 2))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[1]))
err (-1, "could not allocate enough memory");
ipprefix_cat (&key, f[1].s);
if (cdb_make_add(&cdb,key.s,key.len,loc,2) == -1)
err (-1, "could not create file `data.tmp'");
break;
case 'Z':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[3]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[3].s, &u))
uint32_unpack_big (defaultsoa, (uint32 *)&u);
uint32_pack_big (soa, u);
if (!stralloc_0 (&f[4]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[4].s, &u))
uint32_unpack_big (defaultsoa + 4, (uint32 *)&u);
uint32_pack_big (soa + 4, u);
if (!stralloc_0 (&f[5]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[5].s, &u))
uint32_unpack_big (defaultsoa + 8, (uint32 *)&u);
uint32_pack_big (soa + 8, u);
if (!stralloc_0 (&f[6]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[6].s, &u))
uint32_unpack_big (defaultsoa + 12, (uint32 *)&u);
uint32_pack_big (soa + 12, u);
if (!stralloc_0 (&f[7]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[7].s, &u))
uint32_unpack_big (defaultsoa + 16, (uint32 *)&u);
uint32_pack_big (soa + 16, u);
if (!stralloc_0 (&f[8]))
err (-1, "could not allocate enough memory");
if (!scan_ulong(f[8].s,&ttl))
ttl = TTL_NEGATIVE;
ttdparse (&f[9], ttd);
locparse (&f[10], loc);
rr_start (DNS_T_SOA, ttl, ttd, loc);
if (!dns_domain_fromdot (&d2, f[1].s, f[1].len))
err (-1, "could not allocate enough memory");
rr_addname (d2);
if (!dns_domain_fromdot (&d2, f[2].s, f[2].len))
err (-1, "could not allocate enough memory");
rr_addname (d2);
rr_add (soa, 20);
rr_finish (d1);
break;
case '.':
case '&':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[3]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[3].s, &ttl))
ttl = TTL_NS;
ttdparse (&f[4], ttd);
locparse (&f[5], loc);
if (!stralloc_0 (&f[1]))
err (-1, "could not allocate enough memory");
if (byte_chr (f[2].s, f[2].len, '.') >= f[2].len)
{
if (!stralloc_cats (&f[2], ".ns."))
err (-1, "could not allocate enough memory");
if (!stralloc_catb (&f[2], f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
}
if (!dns_domain_fromdot (&d2, f[2].s, f[2].len))
err (-1, "could not allocate enough memory");
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);
rr_add (defaultsoa, 20);
rr_finish (d1);
}
rr_start (DNS_T_NS, ttl, ttd, loc);
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 '=':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[2]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[2].s, &ttl))
ttl = TTL_POSITIVE;
ttdparse (&f[3], ttd);
locparse (&f[4], loc);
if (!stralloc_0 (&f[1]))
err (-1, "could not allocate enough memory");
if (ip4_scan (f[1].s, ip))
{
rr_start (DNS_T_A, ttl, ttd, loc);
rr_add (ip, 4);
rr_finish (d1);
if (line.s[0] == '=')
{
dns_name4_domain (dptr,ip);
rr_start (DNS_T_PTR, ttl, ttd, loc);
rr_addname (d1);
rr_finish (dptr);
}
}
break;
case '@':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[4]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[4].s, &ttl))
ttl = TTL_POSITIVE;
ttdparse (&f[5], ttd);
locparse (&f[6], loc);
if (!stralloc_0 (&f[1]))
err (-1, "could not allocate enough memory");
if (byte_chr (f[2].s, f[2].len, '.') >= f[2].len)
{
if (!stralloc_cats (&f[2], ".mx."))
err (-1, "could not allocate enough memory");
if (!stralloc_catb (&f[2], f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
}
if (!dns_domain_fromdot (&d2, f[2].s, f[2].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[3]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[3].s, &u))
u = 0;
rr_start (DNS_T_MX, ttl, ttd, loc);
uint16_pack_big (buf, u);
rr_add (buf, 2);
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))
err (-1, "could not allocate enough memory");
if (!dns_domain_fromdot (&d2, f[1].s, f[1].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[2]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[2].s, &ttl))
ttl = TTL_POSITIVE;
ttdparse (&f[3], ttd);
locparse (&f[4], loc);
if (line.s[0] == 'C')
rr_start (DNS_T_CNAME, ttl, ttd, loc);
else
rr_start (DNS_T_PTR, ttl, ttd, loc);
rr_addname (d2);
rr_finish (d1);
break;
case '\'':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[2]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[2].s, &ttl))
ttl = TTL_POSITIVE;
ttdparse (&f[3], ttd);
locparse (&f[4], loc);
rr_start (DNS_T_TXT, ttl, ttd, loc);
txtparse (&f[1]);
i = 0;
while (i < f[1].len)
{
k = f[1].len - i;
if (k > 127)
k = 127;
ch = k;
rr_add (&ch, 1);
rr_add (f[1].s + i, k);
i += k;
}
rr_finish (d1);
break;
case ':':
if (!dns_domain_fromdot (&d1, f[0].s, f[0].len))
err (-1, "could not allocate enough memory");
if (!stralloc_0 (&f[3]))
err (-1, "could not allocate enough memory");
if (!scan_ulong (f[3].s, &ttl))
ttl = TTL_POSITIVE;
ttdparse (&f[4], ttd);
locparse (&f[5], loc);
if (!stralloc_0 (&f[1]))
err (-1, "could not allocate enough memory");
scan_ulong (f[1].s, &u);
uint16_pack_big (type, u);
if (byte_equal (type, 2, DNS_T_AXFR))
syntaxerror (": type AXFR prohibited");
if (byte_equal (type, 2, "\0\0"))
syntaxerror (": type 0 prohibited");
if (byte_equal (type, 2, DNS_T_SOA))
syntaxerror (": type SOA prohibited");
if (byte_equal (type, 2, DNS_T_NS))
syntaxerror (": type NS prohibited");
if (byte_equal (type, 2, DNS_T_CNAME))
syntaxerror (": type CNAME prohibited");
if (byte_equal (type, 2, DNS_T_PTR))
syntaxerror (": type PTR prohibited");
if (byte_equal (type, 2, DNS_T_MX))
syntaxerror (": type MX prohibited");
txtparse (&f[2]);
rr_start (type, ttl, ttd, loc);
rr_add (f[2].s, f[2].len);
rr_finish (d1);
break;
default:
syntaxerror (": unrecognized leading character");
}
}
if (cdb_make_finish (&cdb) == -1)
err (-1, "could not create file `data.tmp'");
if (fsync (fdcdb) == -1)
err (-1, "could not create file `data.tmp'");
if (close (fdcdb) == -1)
err (-1, "could not create file `data.tmp'"); /* NFS stupidity */
if (rename ("data.tmp", "data.cdb") == -1)
err (-1, "could not move `data.tmp' to `data.cdb'");
return 0;
}