loc_29.c revision f1b68725503ff3e46001eee5a1751e29a43a09d1
/*
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: loc_29.c,v 1.31 2001/11/27 00:56:01 gson Exp $ */
/* Reviewed: Wed Mar 15 18:13:09 PST 2000 by explorer */
/* RFC 1876 */
#ifndef RDATA_GENERIC_LOC_29_C
#define RDATA_GENERIC_LOC_29_C
#define RRTYPE_LOC_ATTRIBUTES (0)
static inline isc_result_t
fromtext_loc(ARGS_FROMTEXT) {
isc_token_t token;
int d1, m1, s1;
int d2, m2, s2;
unsigned char size;
unsigned char hp;
unsigned char vp;
unsigned char version;
isc_boolean_t east = ISC_FALSE;
isc_boolean_t north = ISC_FALSE;
long tmp;
long m;
long cm;
long poweroften[8] = { 1, 10, 100, 1000,
10000, 100000, 1000000, 10000000 };
int man;
int exp;
char *e;
int i;
unsigned long latitude;
unsigned long longitude;
unsigned long altitude;
REQUIRE(type == 29);
UNUSED(type);
UNUSED(rdclass);
UNUSED(origin);
UNUSED(downcase);
UNUSED(callbacks);
/*
* Defaults.
*/
m1 = s1 = 0;
m2 = s2 = 0;
size = 0x12; /* 1.00m */
hp = 0x16; /* 10000.00 m */
vp = 0x13; /* 10.00 m */
version = 0;
/*
* Degrees.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 90)
RETTOK(ISC_R_RANGE);
d1 = (int)token.value.as_ulong;
/*
* Minutes.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "N") == 0)
north = ISC_TRUE;
if (north || strcasecmp(token.value.as_pointer, "S") == 0)
goto getlong;
m1 = strtol(token.value.as_pointer, &e, 10);
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
if (m1 < 0 || m1 > 59)
RETTOK(ISC_R_RANGE);
if (d1 == 90 && m1 != 0)
RETTOK(ISC_R_RANGE);
/*
* Seconds.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "N") == 0)
north = ISC_TRUE;
if (north || strcasecmp(token.value.as_pointer, "S") == 0)
goto getlong;
s1 = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.')
RETTOK(DNS_R_SYNTAX);
if (s1 < 0 || s1 > 59)
RETTOK(ISC_R_RANGE);
if (*e == '.') {
e++;
for (i = 0; i < 3; i++) {
if (*e == 0)
break;
if ((tmp = decvalue(*e++)) < 0)
RETTOK(DNS_R_SYNTAX);
s1 *= 10;
s1 += tmp;
}
for (; i < 3; i++)
s1 *= 10;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
} else
s1 *= 1000;
if (d1 == 90 && s1 != 0)
RETTOK(ISC_R_RANGE);
/*
* Direction.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "N") == 0)
north = ISC_TRUE;
if (!north && strcasecmp(token.value.as_pointer, "S") != 0)
RETTOK(DNS_R_SYNTAX);
getlong:
/*
* Degrees.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 180)
RETTOK(ISC_R_RANGE);
d2 = (int)token.value.as_ulong;
/*
* Minutes.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "E") == 0)
east = ISC_TRUE;
if (east || strcasecmp(token.value.as_pointer, "W") == 0)
goto getalt;
m2 = strtol(token.value.as_pointer, &e, 10);
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
if (m2 < 0 || m2 > 59)
RETTOK(ISC_R_RANGE);
if (d2 == 180 && m2 != 0)
RETTOK(ISC_R_RANGE);
/*
* Seconds.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "E") == 0)
east = ISC_TRUE;
if (east || strcasecmp(token.value.as_pointer, "W") == 0)
goto getalt;
s2 = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.')
RETTOK(DNS_R_SYNTAX);
if (s2 < 0 || s2 > 59)
RETTOK(ISC_R_RANGE);
if (*e == '.') {
e++;
for (i = 0; i < 3; i++) {
if (*e == 0)
break;
if ((tmp = decvalue(*e++)) < 0)
RETTOK(DNS_R_SYNTAX);
s2 *= 10;
s2 += tmp;
}
for (; i < 3; i++)
s2 *= 10;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
} else
s2 *= 1000;
if (d2 == 180 && s2 != 0)
RETTOK(ISC_R_RANGE);
/*
* Direction.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
if (strcasecmp(token.value.as_pointer, "E") == 0)
east = ISC_TRUE;
if (!east && strcasecmp(token.value.as_pointer, "W") != 0)
RETTOK(DNS_R_SYNTAX);
getalt:
/*
* Altitude.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
m = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.' && *e != 'm')
RETTOK(DNS_R_SYNTAX);
if (m < -100000 || m > 42849672)
RETTOK(ISC_R_RANGE);
cm = 0;
if (*e == '.') {
e++;
for (i = 0; i < 2; i++) {
if (*e == 0 || *e == 'm')
break;
if ((tmp = decvalue(*e++)) < 0)
return (DNS_R_SYNTAX);
cm *= 10;
if (m < 0)
cm -= tmp;
else
cm += tmp;
}
for (; i < 2; i++)
cm *= 10;
}
if (*e == 'm')
e++;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
if (m == -100000 && cm != 0)
RETTOK(ISC_R_RANGE);
if (m == 42849672 && cm > 95)
RETTOK(ISC_R_RANGE);
/*
* Adjust base.
*/
altitude = m + 100000;
altitude *= 100;
altitude += cm;
/*
* Size: optional.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_TRUE));
if (token.type == isc_tokentype_eol ||
token.type == isc_tokentype_eof) {
isc_lex_ungettoken(lexer, &token);
goto encode;
}
m = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.' && *e != 'm')
RETTOK(DNS_R_SYNTAX);
if (m < 0 || m > 90000000)
RETTOK(ISC_R_RANGE);
cm = 0;
if (*e == '.') {
e++;
for (i = 0; i < 2; i++) {
if (*e == 0 || *e == 'm')
break;
if ((tmp = decvalue(*e++)) < 0)
RETTOK(DNS_R_SYNTAX);
cm *= 10;
cm += tmp;
}
for (; i < 2; i++)
cm *= 10;
}
if (*e == 'm')
e++;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
/*
* We don't just multiply out as we will overflow.
*/
if (m > 0) {
for (exp = 0; exp < 7; exp++)
if (m < poweroften[exp+1])
break;
man = m / poweroften[exp];
exp += 2;
} else {
if (cm > 10) {
man = cm / 10;
exp = 1;
} else {
man = cm;
exp = 0;
}
}
size = (man << 4) + exp;
/*
* Horizontal precision: optional.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_TRUE));
if (token.type == isc_tokentype_eol ||
token.type == isc_tokentype_eof) {
isc_lex_ungettoken(lexer, &token);
goto encode;
}
m = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.' && *e != 'm')
RETTOK(DNS_R_SYNTAX);
if (m < 0 || m > 90000000)
RETTOK(ISC_R_RANGE);
cm = 0;
if (*e == '.') {
e++;
for (i = 0; i < 2; i++) {
if (*e == 0 || *e == 'm')
break;
if ((tmp = decvalue(*e++)) < 0)
RETTOK(DNS_R_SYNTAX);
cm *= 10;
cm += tmp;
}
for (; i < 2; i++)
cm *= 10;
}
if (*e == 'm')
e++;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
/*
* We don't just multiply out as we will overflow.
*/
if (m > 0) {
for (exp = 0; exp < 7; exp++)
if (m < poweroften[exp+1])
break;
man = m / poweroften[exp];
exp += 2;
} else if (cm > 10) {
man = cm / 10;
exp = 1;
} else {
man = cm;
exp = 0;
}
hp = (man << 4) + exp;
/*
* Vertical precision: optional.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_TRUE));
if (token.type == isc_tokentype_eol ||
token.type == isc_tokentype_eof) {
isc_lex_ungettoken(lexer, &token);
goto encode;
}
m = strtol(token.value.as_pointer, &e, 10);
if (*e != 0 && *e != '.' && *e != 'm')
RETTOK(DNS_R_SYNTAX);
if (m < 0 || m > 90000000)
RETTOK(ISC_R_RANGE);
cm = 0;
if (*e == '.') {
e++;
for (i = 0; i < 2; i++) {
if (*e == 0 || *e == 'm')
break;
if ((tmp = decvalue(*e++)) < 0)
RETTOK(DNS_R_SYNTAX);
cm *= 10;
cm += tmp;
}
for (; i < 2; i++)
cm *= 10;
}
if (*e == 'm')
e++;
if (*e != 0)
RETTOK(DNS_R_SYNTAX);
/*
* We don't just multiply out as we will overflow.
*/
if (m > 0) {
for (exp = 0; exp < 7; exp++)
if (m < poweroften[exp+1])
break;
man = m / poweroften[exp];
exp += 2;
} else if (cm > 10) {
man = cm / 10;
exp = 1;
} else {
man = cm;
exp = 0;
}
vp = (man << 4) + exp;
encode:
RETERR(mem_tobuffer(target, &version, 1));
RETERR(mem_tobuffer(target, &size, 1));
RETERR(mem_tobuffer(target, &hp, 1));
RETERR(mem_tobuffer(target, &vp, 1));
if (north)
latitude = 0x80000000 + ( d1 * 3600 + m1 * 60 ) * 1000 + s1;
else
latitude = 0x80000000 - ( d1 * 3600 + m1 * 60 ) * 1000 - s1;
RETERR(uint32_tobuffer(latitude, target));
if (east)
longitude = 0x80000000 + ( d2 * 3600 + m2 * 60 ) * 1000 + s2;
else
longitude = 0x80000000 - ( d2 * 3600 + m2 * 60 ) * 1000 - s2;
RETERR(uint32_tobuffer(longitude, target));
return (uint32_tobuffer(altitude, target));
}
static inline isc_result_t
totext_loc(ARGS_TOTEXT) {
int d1, m1, s1, fs1;
int d2, m2, s2, fs2;
unsigned long latitude;
unsigned long longitude;
unsigned long altitude;
isc_boolean_t north;
isc_boolean_t east;
isc_boolean_t below;
isc_region_t sr;
char buf[sizeof("89 59 59.999 N 179 59 59.999 E "
"42849672.95m 90000000m 90000000m 90000000m")];
char sbuf[sizeof("90000000m")];
char hbuf[sizeof("90000000m")];
char vbuf[sizeof("90000000m")];
unsigned char size, hp, vp;
unsigned long poweroften[8] = { 1, 10, 100, 1000,
10000, 100000, 1000000, 10000000 };
UNUSED(tctx);
REQUIRE(rdata->type == 29);
REQUIRE(rdata->length != 0);
dns_rdata_toregion(rdata, &sr);
/* version = sr.base[0]; */
size = sr.base[1];
if ((size&0x0f)> 1)
sprintf(sbuf, "%lum", (size>>4) * poweroften[(size&0x0f)-2]);
else
sprintf(sbuf, "0.%02lum", (size>>4) * poweroften[(size&0x0f)]);
hp = sr.base[2];
if ((hp&0x0f)> 1)
sprintf(hbuf, "%lum", (hp>>4) * poweroften[(hp&0x0f)-2]);
else
sprintf(hbuf, "0.%02lum", (hp>>4) * poweroften[(hp&0x0f)]);
vp = sr.base[3];
if ((vp&0x0f)> 1)
sprintf(vbuf, "%lum", (vp>>4) * poweroften[(vp&0x0f)-2]);
else
sprintf(vbuf, "0.%02lum", (vp>>4) * poweroften[(vp&0x0f)]);
isc_region_consume(&sr, 4);
latitude = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
if (latitude >= 0x80000000) {
north = ISC_TRUE;
latitude -= 0x80000000;
} else {
north = ISC_FALSE;
latitude = 0x80000000 - latitude;
}
fs1 = (int)(latitude % 1000);
latitude /= 1000;
s1 = (int)(latitude % 60);
latitude /= 60;
m1 = (int)(latitude % 60);
latitude /= 60;
d1 = (int)latitude;
longitude = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
if (longitude >= 0x80000000) {
east = ISC_TRUE;
longitude -= 0x80000000;
} else {
east = ISC_FALSE;
longitude = 0x80000000 - longitude;
}
fs2 = (int)(longitude % 1000);
longitude /= 1000;
s2 = (int)(longitude % 60);
longitude /= 60;
m2 = (int)(longitude % 60);
longitude /= 60;
d2 = (int)longitude;
altitude = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
if (altitude < 10000000) {
below = ISC_TRUE;
altitude = 10000000 - altitude;
} else {
below =ISC_FALSE;
altitude -= 10000000;
}
sprintf(buf, "%d %d %d.%03d %s %d %d %d.%03d %s %s%ld.%02ldm %s %s %s",
d1, m1, s1, fs1, north ? "N" : "S",
d2, m2, s2, fs2, east ? "E" : "W",
below ? "-" : "", altitude/100, altitude % 100,
sbuf, hbuf, vbuf);
return (str_totext(buf, target));
}
static inline isc_result_t
fromwire_loc(ARGS_FROMWIRE) {
isc_region_t sr;
unsigned char c;
unsigned long latitude;
unsigned long longitude;
REQUIRE(type == 29);
UNUSED(type);
UNUSED(rdclass);
UNUSED(dctx);
UNUSED(downcase);
isc_buffer_activeregion(source, &sr);
if (sr.length < 1)
return (ISC_R_UNEXPECTEDEND);
if (sr.base[0] != 0)
return (ISC_R_NOTIMPLEMENTED);
if (sr.length < 16)
return (ISC_R_UNEXPECTEDEND);
/*
* Size.
*/
c = sr.base[1];
if (c != 0)
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
/*
* Horizontal precision.
*/
c = sr.base[2];
if (c != 0)
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
/*
* Vertical precision.
*/
c = sr.base[3];
if (c != 0)
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
isc_region_consume(&sr, 4);
/*
* Latitude.
*/
latitude = uint32_fromregion(&sr);
if (latitude < (0x80000000UL - 90 * 3600000) ||
latitude > (0x80000000UL + 90 * 3600000))
return (ISC_R_RANGE);
isc_region_consume(&sr, 4);
/*
* Longitude.
*/
longitude = uint32_fromregion(&sr);
if (longitude < (0x80000000UL - 180 * 3600000) ||
longitude > (0x80000000UL + 180 * 3600000))
return (ISC_R_RANGE);
/*
* Altitiude.
* All values possible.
*/
isc_buffer_activeregion(source, &sr);
isc_buffer_forward(source, 16);
return (mem_tobuffer(target, sr.base, 16));
}
static inline isc_result_t
towire_loc(ARGS_TOWIRE) {
UNUSED(cctx);
REQUIRE(rdata->type == 29);
REQUIRE(rdata->length != 0);
return (mem_tobuffer(target, rdata->data, rdata->length));
}
static inline int
compare_loc(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 29);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
return (compare_region(&r1, &r2));
}
static inline isc_result_t
fromstruct_loc(ARGS_FROMSTRUCT) {
dns_rdata_loc_t *loc = source;
isc_uint8_t c;
REQUIRE(type == 29);
REQUIRE(source != NULL);
REQUIRE(loc->common.rdtype == type);
REQUIRE(loc->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
if (loc->v.v0.version != 0)
return (ISC_R_NOTIMPLEMENTED);
RETERR(uint8_tobuffer(loc->v.v0.version, target));
c = loc->v.v0.size;
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
RETERR(uint8_tobuffer(loc->v.v0.size, target));
c = loc->v.v0.horizontal;
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
RETERR(uint8_tobuffer(loc->v.v0.horizontal, target));
c = loc->v.v0.vertical;
if ((c&0xf) > 9 || ((c>>4)&0xf) > 9 || ((c>>4)&0xf) == 0)
return (ISC_R_RANGE);
RETERR(uint8_tobuffer(loc->v.v0.vertical, target));
if (loc->v.v0.latitude < (0x80000000UL - 90 * 3600000) ||
loc->v.v0.latitude > (0x80000000UL + 90 * 3600000))
return (ISC_R_RANGE);
RETERR(uint32_tobuffer(loc->v.v0.latitude, target));
if (loc->v.v0.longitude < (0x80000000UL - 180 * 3600000) ||
loc->v.v0.longitude > (0x80000000UL + 180 * 3600000))
return (ISC_R_RANGE);
RETERR(uint32_tobuffer(loc->v.v0.longitude, target));
return (uint32_tobuffer(loc->v.v0.altitude, target));
}
static inline isc_result_t
tostruct_loc(ARGS_TOSTRUCT) {
dns_rdata_loc_t *loc = target;
isc_region_t r;
isc_uint8_t version;
REQUIRE(rdata->type == 29);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
UNUSED(mctx);
dns_rdata_toregion(rdata, &r);
version = uint8_fromregion(&r);
if (version != 0)
return (ISC_R_NOTIMPLEMENTED);
loc->common.rdclass = rdata->rdclass;
loc->common.rdtype = rdata->type;
ISC_LINK_INIT(&loc->common, link);
loc->v.v0.version = version;
isc_region_consume(&r, 1);
loc->v.v0.size = uint8_fromregion(&r);
isc_region_consume(&r, 1);
loc->v.v0.horizontal = uint8_fromregion(&r);
isc_region_consume(&r, 1);
loc->v.v0.vertical = uint8_fromregion(&r);
isc_region_consume(&r, 1);
loc->v.v0.latitude = uint32_fromregion(&r);
isc_region_consume(&r, 4);
loc->v.v0.longitude = uint32_fromregion(&r);
isc_region_consume(&r, 4);
loc->v.v0.altitude = uint32_fromregion(&r);
isc_region_consume(&r, 4);
return (ISC_R_SUCCESS);
}
static inline void
freestruct_loc(ARGS_FREESTRUCT) {
dns_rdata_loc_t *loc = source;
REQUIRE(source != NULL);
REQUIRE(loc->common.rdtype == 29);
UNUSED(source);
UNUSED(loc);
}
static inline isc_result_t
additionaldata_loc(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 29);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_loc(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == 29);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
#endif /* RDATA_GENERIC_LOC_29_C */