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 = 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;
}
