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Added new error code DNS_R_UNEXPECTEDTOKEN, DNS_R_BADBASE64.

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Adjusted function to use the new error codes.

	Changed some INSIST -> REQUIRE.

	Mapped ISC_R_NOMEMORY -> DNS_R_NOMEMORY for isc_lex_gettoken() result.
This commit is contained in:
Mark Andrews
1999-02-12 03:08:44 +00:00
parent 19511ab025
commit 035504dbd8
3 changed files with 24 additions and 17 deletions
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4
lib/dns/include/dns/result.h
View File

@@ -49,8 +49,10 @@ typedef unsigned int dns_result_t;
#define DNS_R_NOOWNER 26 #define DNS_R_NOOWNER 26
#define DNS_R_NOTTL 27 #define DNS_R_NOTTL 27
#define DNS_R_BADCLASS 28 #define DNS_R_BADCLASS 28
#define DNS_R_UNEXPECTEDTOKEN 29
#define DNS_R_BADBASE64 30
#define DNS_R_LASTENTRY 28 /* Last entry on list. */ #define DNS_R_LASTENTRY 30 /* Last entry on list. */
#define DNS_R_UNEXPECTED 0xFFFFFFFFL #define DNS_R_UNEXPECTED 0xFFFFFFFFL

29
lib/dns/rdata.c
View File

@@ -15,7 +15,7 @@
* SOFTWARE. * SOFTWARE.
*/ */
/* $Id: rdata.c,v 1.32 1999/02/10 05:25:37 marka Exp $ */ /* $Id: rdata.c,v 1.33 1999/02/12 03:08:44 marka Exp $ */
#include <config.h> #include <config.h>
@@ -345,6 +345,9 @@ dns_rdata_fromtext(dns_rdata_t *rdata,
if (iresult != ISC_R_SUCCESS) { if (iresult != ISC_R_SUCCESS) {
if (result == DNS_R_SUCCESS) { if (result == DNS_R_SUCCESS) {
switch (iresult) { switch (iresult) {
case ISC_R_NOMEMORY:
result = DNS_R_NOMEMORY;
break;
case ISC_R_NOSPACE: case ISC_R_NOSPACE:
result = DNS_R_NOSPACE; result = DNS_R_NOSPACE;
break; break;
@@ -785,7 +788,7 @@ static isc_uint32_t
uint32_fromregion(isc_region_t *region) { uint32_fromregion(isc_region_t *region) {
unsigned long value; unsigned long value;
INSIST(region->length >= 4); REQUIRE(region->length >= 4);
value = region->base[0] << 24; value = region->base[0] << 24;
value |= region->base[1] << 16; value |= region->base[1] << 16;
value |= region->base[2] << 8; value |= region->base[2] << 8;
@@ -796,7 +799,7 @@ uint32_fromregion(isc_region_t *region) {
static isc_uint16_t static isc_uint16_t
uint16_fromregion(isc_region_t *region) { uint16_fromregion(isc_region_t *region) {
INSIST(region->length >= 2); REQUIRE(region->length >= 2);
return ((region->base[0] << 8) | region->base[1]); return ((region->base[0] << 8) | region->base[1]);
} }
@@ -816,6 +819,8 @@ gettoken(isc_lex_t *lexer, isc_token_t *token, isc_tokentype_t expect,
switch (result) { switch (result) {
case ISC_R_SUCCESS: case ISC_R_SUCCESS:
break; break;
case ISC_R_NOMEMORY:
return (DNS_R_NOMEMORY);
case ISC_R_NOSPACE: case ISC_R_NOSPACE:
return (DNS_R_NOSPACE); return (DNS_R_NOSPACE);
default: default:
@@ -835,9 +840,7 @@ gettoken(isc_lex_t *lexer, isc_token_t *token, isc_tokentype_t expect,
if (token->type == isc_tokentype_eol || if (token->type == isc_tokentype_eol ||
token->type == isc_tokentype_eof) token->type == isc_tokentype_eof)
return (DNS_R_UNEXPECTEDEND); return (DNS_R_UNEXPECTEDEND);
UNEXPECTED_ERROR(__FILE__, __LINE__, return (DNS_R_UNEXPECTEDTOKEN);
"isc_lex_gettoken() returned unexpected token type\n");
return (DNS_R_UNEXPECTED);
} }
return (DNS_R_SUCCESS); return (DNS_R_SUCCESS);
} }
@@ -956,15 +959,15 @@ base64_tobuffer(isc_lex_t *lexer, isc_buffer_t *target, int length) {
tr = &token.value.as_textregion; tr = &token.value.as_textregion;
for (i = 0 ;i < tr->length; i++) { for (i = 0 ;i < tr->length; i++) {
if (seen_end) if (seen_end)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
if ((s = strchr(base64, tr->base[i])) == NULL) if ((s = strchr(base64, tr->base[i])) == NULL)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
val[digits++] = s - base64; val[digits++] = s - base64;
if (digits == 4) { if (digits == 4) {
if (val[0] == 64 || val[1] == 64) if (val[0] == 64 || val[1] == 64)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
if (val[2] == 64 && val[3] != 64) if (val[2] == 64 && val[3] != 64)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
n = (val[2] == 64) ? 1 : n = (val[2] == 64) ? 1 :
(val[3] == 64) ? 2 : 3; (val[3] == 64) ? 2 : 3;
if (n != 3) { if (n != 3) {
@@ -980,7 +983,7 @@ base64_tobuffer(isc_lex_t *lexer, isc_buffer_t *target, int length) {
RETERR(mem_tobuffer(target, buf, n)); RETERR(mem_tobuffer(target, buf, n));
if (length >= 0) if (length >= 0)
if (n > length) if (n > length)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
else else
length -= n; length -= n;
digits = 0; digits = 0;
@@ -991,8 +994,8 @@ base64_tobuffer(isc_lex_t *lexer, isc_buffer_t *target, int length) {
isc_lex_ungettoken(lexer, &token); isc_lex_ungettoken(lexer, &token);
if (length > 0) if (length > 0)
return (DNS_R_UNEXPECTEDEND); return (DNS_R_UNEXPECTEDEND);
if (digits) if (digits != 0)
return (DNS_R_SYNTAX); return (DNS_R_BADBASE64);
return (DNS_R_SUCCESS); return (DNS_R_SUCCESS);
} }

8
lib/dns/result.c
View File

@@ -46,9 +46,11 @@ static char *text_table[DNS_R_LASTENTRY + 1] = {
"syntax error", /* 23 */ "syntax error", /* 23 */
"bad checksum", /* 24 */ "bad checksum", /* 24 */
"bad IPv6 address", /* 25 */ "bad IPv6 address", /* 25 */
"no owner" /* 26 */ "no owner", /* 26 */
"no ttl" /* 27 */ "no ttl", /* 27 */
"bad class" /* 28 */ "bad class", /* 28 */
"unexpected token", /* 29 */
"bad base64 encoding", /* 30 */
}; };
char * char *