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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <isc/commandline.h>
#include <isc/lex.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/util.h>
isc_mem_t *mctx;
isc_lex_t *lex;
isc_lexspecials_t specials;
static void
print_token(isc_token_t *tokenp, FILE *stream) {
switch (tokenp->type) {
case isc_tokentype_unknown:
fprintf(stream, "UNKNOWN");
break;
case isc_tokentype_string:
fprintf(stream, "STRING %.*s",
(int)tokenp->value.as_region.length,
tokenp->value.as_region.base);
break;
case isc_tokentype_number:
fprintf(stream, "NUMBER %lu", tokenp->value.as_ulong);
break;
case isc_tokentype_qstring:
fprintf(stream, "QSTRING \"%.*s\"",
(int)tokenp->value.as_region.length,
tokenp->value.as_region.base);
break;
case isc_tokentype_eol:
fprintf(stream, "EOL");
break;
case isc_tokentype_eof:
fprintf(stream, "EOF");
break;
case isc_tokentype_initialws:
fprintf(stream, "INITIALWS");
break;
case isc_tokentype_special:
fprintf(stream, "SPECIAL %c", tokenp->value.as_char);
break;
case isc_tokentype_nomore:
fprintf(stream, "NOMORE");
break;
default:
FATAL_ERROR(__FILE__, __LINE__, "Unexpected type %d",
tokenp->type);
}
}
int
main(int argc, char *argv[]) {
isc_token_t token;
isc_result_t result;
int quiet = 0;
int c;
int masterfile = 1;
int stats = 0;
unsigned int options = 0;
int done = 0;
while ((c = isc_commandline_parse(argc, argv, "qmcs")) != -1) {
switch (c) {
case 'q':
quiet = 1;
break;
case 'm':
masterfile = 1;
break;
case 'c':
masterfile = 0;
break;
case 's':
stats = 1;
break;
}
}
isc_mem_create(&mctx);
RUNTIME_CHECK(isc_lex_create(mctx, 256, &lex) == ISC_R_SUCCESS);
if (masterfile) {
/* Set up to lex DNS master file. */
specials['('] = 1;
specials[')'] = 1;
specials['"'] = 1;
isc_lex_setspecials(lex, specials);
options = ISC_LEXOPT_DNSMULTILINE | ISC_LEXOPT_ESCAPE |
ISC_LEXOPT_EOF | ISC_LEXOPT_QSTRING |
ISC_LEXOPT_NOMORE;
isc_lex_setcomments(lex, ISC_LEXCOMMENT_DNSMASTERFILE);
} else {
/* Set up to lex DNS config file. */
specials['{'] = 1;
specials['}'] = 1;
specials[';'] = 1;
specials['/'] = 1;
specials['"'] = 1;
specials['!'] = 1;
specials['*'] = 1;
isc_lex_setspecials(lex, specials);
options = ISC_LEXOPT_EOF | ISC_LEXOPT_QSTRING |
ISC_LEXOPT_NUMBER | ISC_LEXOPT_NOMORE;
isc_lex_setcomments(lex, (ISC_LEXCOMMENT_C |
ISC_LEXCOMMENT_CPLUSPLUS |
ISC_LEXCOMMENT_SHELL));
}
RUNTIME_CHECK(isc_lex_openstream(lex, stdin) == ISC_R_SUCCESS);
while ((result = isc_lex_gettoken(lex, options, &token)) ==
ISC_R_SUCCESS &&
!done)
{
if (!quiet) {
char *name = isc_lex_getsourcename(lex);
print_token(&token, stdout);
printf(" line = %lu file = %s\n",
isc_lex_getsourceline(lex),
(name == NULL) ? "<none>" : name);
}
if (token.type == isc_tokentype_eof) {
isc_lex_close(lex);
}
if (token.type == isc_tokentype_nomore) {
done = 1;
}
}
if (result != ISC_R_SUCCESS) {
printf("Result: %s\n", isc_result_totext(result));
}
isc_lex_close(lex);
isc_lex_destroy(&lex);
if (!quiet && stats) {
isc_mem_stats(mctx, stdout);
}
isc_mem_destroy(&mctx);
return (0);
}
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