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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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29
lib/dns/rdata.c
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@@ -15,7 +15,7 @@
* 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>
@@ -345,6 +345,9 @@ dns_rdata_fromtext(dns_rdata_t *rdata,
if (iresult != ISC_R_SUCCESS) {
if (result == DNS_R_SUCCESS) {
switch (iresult) {
case ISC_R_NOMEMORY:
result = DNS_R_NOMEMORY;
break;
case ISC_R_NOSPACE:
result = DNS_R_NOSPACE;
break;
@@ -785,7 +788,7 @@ static isc_uint32_t
uint32_fromregion(isc_region_t *region) {
unsigned long value;
INSIST(region->length >= 4);
REQUIRE(region->length >= 4);
value = region->base[0] << 24;
value |= region->base[1] << 16;
value |= region->base[2] << 8;
@@ -796,7 +799,7 @@ uint32_fromregion(isc_region_t *region) {
static isc_uint16_t
uint16_fromregion(isc_region_t *region) {
INSIST(region->length >= 2);
REQUIRE(region->length >= 2);
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) {
case ISC_R_SUCCESS:
break;
case ISC_R_NOMEMORY:
return (DNS_R_NOMEMORY);
case ISC_R_NOSPACE:
return (DNS_R_NOSPACE);
default:
@@ -835,9 +840,7 @@ gettoken(isc_lex_t *lexer, isc_token_t *token, isc_tokentype_t expect,
if (token->type == isc_tokentype_eol ||
token->type == isc_tokentype_eof)
return (DNS_R_UNEXPECTEDEND);
UNEXPECTED_ERROR(__FILE__, __LINE__,
"isc_lex_gettoken() returned unexpected token type\n");
return (DNS_R_UNEXPECTED);
return (DNS_R_UNEXPECTEDTOKEN);
}
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;
for (i = 0 ;i < tr->length; i++) {
if (seen_end)
return (DNS_R_SYNTAX);
return (DNS_R_BADBASE64);
if ((s = strchr(base64, tr->base[i])) == NULL)
return (DNS_R_SYNTAX);
return (DNS_R_BADBASE64);
val[digits++] = s - base64;
if (digits == 4) {
if (val[0] == 64 || val[1] == 64)
return (DNS_R_SYNTAX);
return (DNS_R_BADBASE64);
if (val[2] == 64 && val[3] != 64)
return (DNS_R_SYNTAX);
return (DNS_R_BADBASE64);
n = (val[2] == 64) ? 1 :
(val[3] == 64) ? 2 : 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));
if (length >= 0)
if (n > length)
return (DNS_R_SYNTAX);
return (DNS_R_BADBASE64);
else
length -= n;
digits = 0;
@@ -991,8 +994,8 @@ base64_tobuffer(isc_lex_t *lexer, isc_buffer_t *target, int length) {
isc_lex_ungettoken(lexer, &token);
if (length > 0)
return (DNS_R_UNEXPECTEDEND);
if (digits)
return (DNS_R_SYNTAX);
if (digits != 0)
return (DNS_R_BADBASE64);
return (DNS_R_SUCCESS);
}