From ba8f85b49c38af7bc2a9acdef5dcde2de008d25e Mon Sep 17 00:00:00 2001
From: peter <peter@FreeBSD.org>
Date: Sat, 12 Jul 2008 05:00:28 +0000
Subject: Flatten bind9 vendor work area
---
lib/isccfg/parser.c | 2382 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 2382 insertions(+)
create mode 100644 lib/isccfg/parser.c
(limited to 'lib/isccfg/parser.c')
diff --git a/lib/isccfg/parser.c b/lib/isccfg/parser.c
new file mode 100644
index 0000000..19a51a6
--- /dev/null
+++ b/lib/isccfg/parser.c
@@ -0,0 +1,2382 @@
+/*
+ * Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2003 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 ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC 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: parser.c,v 1.112.18.11 2006/02/28 03:10:49 marka Exp $ */
+
+/*! \file */
+
+#include <config.h>
+
+#include <isc/buffer.h>
+#include <isc/dir.h>
+#include <isc/formatcheck.h>
+#include <isc/lex.h>
+#include <isc/log.h>
+#include <isc/mem.h>
+#include <isc/net.h>
+#include <isc/netaddr.h>
+#include <isc/print.h>
+#include <isc/string.h>
+#include <isc/sockaddr.h>
+#include <isc/netscope.h>
+#include <isc/util.h>
+#include <isc/symtab.h>
+
+#include <isccfg/cfg.h>
+#include <isccfg/grammar.h>
+#include <isccfg/log.h>
+
+/* Shorthand */
+#define CAT CFG_LOGCATEGORY_CONFIG
+#define MOD CFG_LOGMODULE_PARSER
+
+#define MAP_SYM 1 /* Unique type for isc_symtab */
+
+#define TOKEN_STRING(pctx) (pctx->token.value.as_textregion.base)
+
+/* Check a return value. */
+#define CHECK(op) \
+ do { result = (op); \
+ if (result != ISC_R_SUCCESS) goto cleanup; \
+ } while (0)
+
+/* Clean up a configuration object if non-NULL. */
+#define CLEANUP_OBJ(obj) \
+ do { if ((obj) != NULL) cfg_obj_destroy(pctx, &(obj)); } while (0)
+
+
+/*
+ * Forward declarations of static functions.
+ */
+
+static void
+free_tuple(cfg_parser_t *pctx, cfg_obj_t *obj);
+
+static isc_result_t
+parse_list(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret);
+
+static void
+print_list(cfg_printer_t *pctx, const cfg_obj_t *obj);
+
+static void
+free_list(cfg_parser_t *pctx, cfg_obj_t *obj);
+
+static isc_result_t
+create_listelt(cfg_parser_t *pctx, cfg_listelt_t **eltp);
+
+static isc_result_t
+create_string(cfg_parser_t *pctx, const char *contents, const cfg_type_t *type,
+ cfg_obj_t **ret);
+
+static void
+free_string(cfg_parser_t *pctx, cfg_obj_t *obj);
+
+static isc_result_t
+create_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **objp);
+
+static void
+free_map(cfg_parser_t *pctx, cfg_obj_t *obj);
+
+static isc_result_t
+parse_symtab_elt(cfg_parser_t *pctx, const char *name,
+ cfg_type_t *elttype, isc_symtab_t *symtab,
+ isc_boolean_t callback);
+
+static void
+free_noop(cfg_parser_t *pctx, cfg_obj_t *obj);
+
+static isc_result_t
+cfg_getstringtoken(cfg_parser_t *pctx);
+
+static void
+parser_complain(cfg_parser_t *pctx, isc_boolean_t is_warning,
+ unsigned int flags, const char *format, va_list args);
+
+/*
+ * Data representations. These correspond to members of the
+ * "value" union in struct cfg_obj (except "void", which does
+ * not need a union member).
+ */
+
+cfg_rep_t cfg_rep_uint32 = { "uint32", free_noop };
+cfg_rep_t cfg_rep_uint64 = { "uint64", free_noop };
+cfg_rep_t cfg_rep_string = { "string", free_string };
+cfg_rep_t cfg_rep_boolean = { "boolean", free_noop };
+cfg_rep_t cfg_rep_map = { "map", free_map };
+cfg_rep_t cfg_rep_list = { "list", free_list };
+cfg_rep_t cfg_rep_tuple = { "tuple", free_tuple };
+cfg_rep_t cfg_rep_sockaddr = { "sockaddr", free_noop };
+cfg_rep_t cfg_rep_netprefix = { "netprefix", free_noop };
+cfg_rep_t cfg_rep_void = { "void", free_noop };
+
+/*
+ * Configuration type definitions.
+ */
+
+/*%
+ * An implicit list. These are formed by clauses that occur multiple times.
+ */
+static cfg_type_t cfg_type_implicitlist = {
+ "implicitlist", NULL, print_list, NULL, &cfg_rep_list, NULL };
+
+/* Functions. */
+
+void
+cfg_print_obj(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ obj->type->print(pctx, obj);
+}
+
+void
+cfg_print_chars(cfg_printer_t *pctx, const char *text, int len) {
+ pctx->f(pctx->closure, text, len);
+}
+
+static void
+print_open(cfg_printer_t *pctx) {
+ cfg_print_chars(pctx, "{\n", 2);
+ pctx->indent++;
+}
+
+static void
+print_indent(cfg_printer_t *pctx) {
+ int indent = pctx->indent;
+ while (indent > 0) {
+ cfg_print_chars(pctx, "\t", 1);
+ indent--;
+ }
+}
+
+static void
+print_close(cfg_printer_t *pctx) {
+ pctx->indent--;
+ print_indent(pctx);
+ cfg_print_chars(pctx, "}", 1);
+}
+
+isc_result_t
+cfg_parse_obj(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ INSIST(ret != NULL && *ret == NULL);
+ result = type->parse(pctx, type, ret);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+ INSIST(*ret != NULL);
+ return (ISC_R_SUCCESS);
+}
+
+void
+cfg_print(const cfg_obj_t *obj,
+ void (*f)(void *closure, const char *text, int textlen),
+ void *closure)
+{
+ cfg_printer_t pctx;
+ pctx.f = f;
+ pctx.closure = closure;
+ pctx.indent = 0;
+ obj->type->print(&pctx, obj);
+}
+
+
+/* Tuples. */
+
+isc_result_t
+cfg_create_tuple(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ const cfg_tuplefielddef_t *fields = type->of;
+ const cfg_tuplefielddef_t *f;
+ cfg_obj_t *obj = NULL;
+ unsigned int nfields = 0;
+ int i;
+
+ for (f = fields; f->name != NULL; f++)
+ nfields++;
+
+ CHECK(cfg_create_obj(pctx, type, &obj));
+ obj->value.tuple = isc_mem_get(pctx->mctx,
+ nfields * sizeof(cfg_obj_t *));
+ if (obj->value.tuple == NULL) {
+ result = ISC_R_NOMEMORY;
+ goto cleanup;
+ }
+ for (f = fields, i = 0; f->name != NULL; f++, i++)
+ obj->value.tuple[i] = NULL;
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ if (obj != NULL)
+ isc_mem_put(pctx->mctx, obj, sizeof(*obj));
+ return (result);
+}
+
+isc_result_t
+cfg_parse_tuple(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
+{
+ isc_result_t result;
+ const cfg_tuplefielddef_t *fields = type->of;
+ const cfg_tuplefielddef_t *f;
+ cfg_obj_t *obj = NULL;
+ unsigned int i;
+
+ CHECK(cfg_create_tuple(pctx, type, &obj));
+ for (f = fields, i = 0; f->name != NULL; f++, i++)
+ CHECK(cfg_parse_obj(pctx, f->type, &obj->value.tuple[i]));
+
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+void
+cfg_print_tuple(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ unsigned int i;
+ const cfg_tuplefielddef_t *fields = obj->type->of;
+ const cfg_tuplefielddef_t *f;
+ isc_boolean_t need_space = ISC_FALSE;
+
+ for (f = fields, i = 0; f->name != NULL; f++, i++) {
+ const cfg_obj_t *fieldobj = obj->value.tuple[i];
+ if (need_space)
+ cfg_print_chars(pctx, " ", 1);
+ cfg_print_obj(pctx, fieldobj);
+ need_space = ISC_TF(fieldobj->type->print != cfg_print_void);
+ }
+}
+
+void
+cfg_doc_tuple(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const cfg_tuplefielddef_t *fields = type->of;
+ const cfg_tuplefielddef_t *f;
+ isc_boolean_t need_space = ISC_FALSE;
+
+ for (f = fields; f->name != NULL; f++) {
+ if (need_space)
+ cfg_print_chars(pctx, " ", 1);
+ cfg_doc_obj(pctx, f->type);
+ need_space = ISC_TF(f->type->print != cfg_print_void);
+ }
+}
+
+static void
+free_tuple(cfg_parser_t *pctx, cfg_obj_t *obj) {
+ unsigned int i;
+ const cfg_tuplefielddef_t *fields = obj->type->of;
+ const cfg_tuplefielddef_t *f;
+ unsigned int nfields = 0;
+
+ if (obj->value.tuple == NULL)
+ return;
+
+ for (f = fields, i = 0; f->name != NULL; f++, i++) {
+ CLEANUP_OBJ(obj->value.tuple[i]);
+ nfields++;
+ }
+ isc_mem_put(pctx->mctx, obj->value.tuple,
+ nfields * sizeof(cfg_obj_t *));
+}
+
+isc_boolean_t
+cfg_obj_istuple(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_tuple));
+}
+
+const cfg_obj_t *
+cfg_tuple_get(const cfg_obj_t *tupleobj, const char* name) {
+ unsigned int i;
+ const cfg_tuplefielddef_t *fields;
+ const cfg_tuplefielddef_t *f;
+
+ REQUIRE(tupleobj != NULL && tupleobj->type->rep == &cfg_rep_tuple);
+
+ fields = tupleobj->type->of;
+ for (f = fields, i = 0; f->name != NULL; f++, i++) {
+ if (strcmp(f->name, name) == 0)
+ return (tupleobj->value.tuple[i]);
+ }
+ INSIST(0);
+ return (NULL);
+}
+
+isc_result_t
+cfg_parse_special(cfg_parser_t *pctx, int special) {
+ isc_result_t result;
+ CHECK(cfg_gettoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special &&
+ pctx->token.value.as_char == special)
+ return (ISC_R_SUCCESS);
+
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "'%c' expected", special);
+ return (ISC_R_UNEXPECTEDTOKEN);
+ cleanup:
+ return (result);
+}
+
+/*
+ * Parse a required semicolon. If it is not there, log
+ * an error and increment the error count but continue
+ * parsing. Since the next token is pushed back,
+ * care must be taken to make sure it is eventually
+ * consumed or an infinite loop may result.
+ */
+static isc_result_t
+parse_semicolon(cfg_parser_t *pctx) {
+ isc_result_t result;
+ CHECK(cfg_gettoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special &&
+ pctx->token.value.as_char == ';')
+ return (ISC_R_SUCCESS);
+
+ cfg_parser_error(pctx, CFG_LOG_BEFORE, "missing ';'");
+ cfg_ungettoken(pctx);
+ cleanup:
+ return (result);
+}
+
+/*
+ * Parse EOF, logging and returning an error if not there.
+ */
+static isc_result_t
+parse_eof(cfg_parser_t *pctx) {
+ isc_result_t result;
+ CHECK(cfg_gettoken(pctx, 0));
+
+ if (pctx->token.type == isc_tokentype_eof)
+ return (ISC_R_SUCCESS);
+
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "syntax error");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ cleanup:
+ return (result);
+}
+
+/* A list of files, used internally for pctx->files. */
+
+static cfg_type_t cfg_type_filelist = {
+ "filelist", NULL, print_list, NULL, &cfg_rep_list,
+ &cfg_type_qstring
+};
+
+isc_result_t
+cfg_parser_create(isc_mem_t *mctx, isc_log_t *lctx, cfg_parser_t **ret) {
+ isc_result_t result;
+ cfg_parser_t *pctx;
+ isc_lexspecials_t specials;
+
+ REQUIRE(mctx != NULL);
+ REQUIRE(ret != NULL && *ret == NULL);
+
+ pctx = isc_mem_get(mctx, sizeof(*pctx));
+ if (pctx == NULL)
+ return (ISC_R_NOMEMORY);
+
+ pctx->mctx = mctx;
+ pctx->lctx = lctx;
+ pctx->lexer = NULL;
+ pctx->seen_eof = ISC_FALSE;
+ pctx->ungotten = ISC_FALSE;
+ pctx->errors = 0;
+ pctx->warnings = 0;
+ pctx->open_files = NULL;
+ pctx->closed_files = NULL;
+ pctx->line = 0;
+ pctx->callback = NULL;
+ pctx->callbackarg = NULL;
+ pctx->token.type = isc_tokentype_unknown;
+
+ memset(specials, 0, sizeof(specials));
+ specials['{'] = 1;
+ specials['}'] = 1;
+ specials[';'] = 1;
+ specials['/'] = 1;
+ specials['"'] = 1;
+ specials['!'] = 1;
+
+ CHECK(isc_lex_create(pctx->mctx, 1024, &pctx->lexer));
+
+ isc_lex_setspecials(pctx->lexer, specials);
+ isc_lex_setcomments(pctx->lexer, (ISC_LEXCOMMENT_C |
+ ISC_LEXCOMMENT_CPLUSPLUS |
+ ISC_LEXCOMMENT_SHELL));
+
+ CHECK(cfg_create_list(pctx, &cfg_type_filelist, &pctx->open_files));
+ CHECK(cfg_create_list(pctx, &cfg_type_filelist, &pctx->closed_files));
+
+ *ret = pctx;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ if (pctx->lexer != NULL)
+ isc_lex_destroy(&pctx->lexer);
+ CLEANUP_OBJ(pctx->open_files);
+ CLEANUP_OBJ(pctx->closed_files);
+ isc_mem_put(mctx, pctx, sizeof(*pctx));
+ return (result);
+}
+
+static isc_result_t
+parser_openfile(cfg_parser_t *pctx, const char *filename) {
+ isc_result_t result;
+ cfg_listelt_t *elt = NULL;
+ cfg_obj_t *stringobj = NULL;
+
+ result = isc_lex_openfile(pctx->lexer, filename);
+ if (result != ISC_R_SUCCESS) {
+ cfg_parser_error(pctx, 0, "open: %s: %s",
+ filename, isc_result_totext(result));
+ goto cleanup;
+ }
+
+ CHECK(create_string(pctx, filename, &cfg_type_qstring, &stringobj));
+ CHECK(create_listelt(pctx, &elt));
+ elt->obj = stringobj;
+ ISC_LIST_APPEND(pctx->open_files->value.list, elt, link);
+
+ return (ISC_R_SUCCESS);
+ cleanup:
+ CLEANUP_OBJ(stringobj);
+ return (result);
+}
+
+void
+cfg_parser_setcallback(cfg_parser_t *pctx,
+ cfg_parsecallback_t callback,
+ void *arg)
+{
+ pctx->callback = callback;
+ pctx->callbackarg = arg;
+}
+
+/*
+ * Parse a configuration using a pctx where a lexer has already
+ * been set up with a source.
+ */
+static isc_result_t
+parse2(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+
+ result = cfg_parse_obj(pctx, type, &obj);
+
+ if (pctx->errors != 0) {
+ /* Errors have been logged. */
+ if (result == ISC_R_SUCCESS)
+ result = ISC_R_FAILURE;
+ goto cleanup;
+ }
+
+ if (result != ISC_R_SUCCESS) {
+ /* Parsing failed but no errors have been logged. */
+ cfg_parser_error(pctx, 0, "parsing failed");
+ goto cleanup;
+ }
+
+ CHECK(parse_eof(pctx));
+
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+isc_result_t
+cfg_parse_file(cfg_parser_t *pctx, const char *filename,
+ const cfg_type_t *type, cfg_obj_t **ret)
+{
+ isc_result_t result;
+
+ REQUIRE(filename != NULL);
+
+ CHECK(parser_openfile(pctx, filename));
+ CHECK(parse2(pctx, type, ret));
+ cleanup:
+ return (result);
+}
+
+
+isc_result_t
+cfg_parse_buffer(cfg_parser_t *pctx, isc_buffer_t *buffer,
+ const cfg_type_t *type, cfg_obj_t **ret)
+{
+ isc_result_t result;
+ REQUIRE(buffer != NULL);
+ CHECK(isc_lex_openbuffer(pctx->lexer, buffer));
+ CHECK(parse2(pctx, type, ret));
+ cleanup:
+ return (result);
+}
+
+void
+cfg_parser_destroy(cfg_parser_t **pctxp) {
+ cfg_parser_t *pctx = *pctxp;
+ isc_lex_destroy(&pctx->lexer);
+ /*
+ * Cleaning up open_files does not
+ * close the files; that was already done
+ * by closing the lexer.
+ */
+ CLEANUP_OBJ(pctx->open_files);
+ CLEANUP_OBJ(pctx->closed_files);
+ isc_mem_put(pctx->mctx, pctx, sizeof(*pctx));
+ *pctxp = NULL;
+}
+
+/*
+ * void
+ */
+isc_result_t
+cfg_parse_void(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ UNUSED(type);
+ return (cfg_create_obj(pctx, &cfg_type_void, ret));
+}
+
+void
+cfg_print_void(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ UNUSED(pctx);
+ UNUSED(obj);
+}
+
+void
+cfg_doc_void(cfg_printer_t *pctx, const cfg_type_t *type) {
+ UNUSED(pctx);
+ UNUSED(type);
+}
+
+isc_boolean_t
+cfg_obj_isvoid(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_void));
+}
+
+cfg_type_t cfg_type_void = {
+ "void", cfg_parse_void, cfg_print_void, cfg_doc_void, &cfg_rep_void,
+ NULL };
+
+
+/*
+ * uint32
+ */
+isc_result_t
+cfg_parse_uint32(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+ UNUSED(type);
+
+ CHECK(cfg_gettoken(pctx, ISC_LEXOPT_NUMBER | ISC_LEXOPT_CNUMBER));
+ if (pctx->token.type != isc_tokentype_number) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "expected number");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+
+ CHECK(cfg_create_obj(pctx, &cfg_type_uint32, &obj));
+
+ obj->value.uint32 = pctx->token.value.as_ulong;
+ *ret = obj;
+ cleanup:
+ return (result);
+}
+
+void
+cfg_print_cstr(cfg_printer_t *pctx, const char *s) {
+ cfg_print_chars(pctx, s, strlen(s));
+}
+
+void
+cfg_print_rawuint(cfg_printer_t *pctx, unsigned int u) {
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%u", u);
+ cfg_print_cstr(pctx, buf);
+}
+
+void
+cfg_print_uint32(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ cfg_print_rawuint(pctx, obj->value.uint32);
+}
+
+isc_boolean_t
+cfg_obj_isuint32(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_uint32));
+}
+
+isc_uint32_t
+cfg_obj_asuint32(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_uint32);
+ return (obj->value.uint32);
+}
+
+cfg_type_t cfg_type_uint32 = {
+ "integer", cfg_parse_uint32, cfg_print_uint32, cfg_doc_terminal,
+ &cfg_rep_uint32, NULL
+};
+
+
+/*
+ * uint64
+ */
+isc_boolean_t
+cfg_obj_isuint64(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_uint64));
+}
+
+isc_uint64_t
+cfg_obj_asuint64(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_uint64);
+ return (obj->value.uint64);
+}
+
+void
+cfg_print_uint64(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%" ISC_PRINT_QUADFORMAT "u",
+ obj->value.uint64);
+ cfg_print_cstr(pctx, buf);
+}
+
+cfg_type_t cfg_type_uint64 = {
+ "64_bit_integer", NULL, cfg_print_uint64, cfg_doc_terminal,
+ &cfg_rep_uint64, NULL
+};
+
+/*
+ * qstring (quoted string), ustring (unquoted string), astring
+ * (any string)
+ */
+
+/* Create a string object from a null-terminated C string. */
+static isc_result_t
+create_string(cfg_parser_t *pctx, const char *contents, const cfg_type_t *type,
+ cfg_obj_t **ret)
+{
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+ int len;
+
+ CHECK(cfg_create_obj(pctx, type, &obj));
+ len = strlen(contents);
+ obj->value.string.length = len;
+ obj->value.string.base = isc_mem_get(pctx->mctx, len + 1);
+ if (obj->value.string.base == 0) {
+ isc_mem_put(pctx->mctx, obj, sizeof(*obj));
+ return (ISC_R_NOMEMORY);
+ }
+ memcpy(obj->value.string.base, contents, len);
+ obj->value.string.base[len] = '\0';
+
+ *ret = obj;
+ cleanup:
+ return (result);
+}
+
+isc_result_t
+cfg_parse_qstring(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ UNUSED(type);
+
+ CHECK(cfg_gettoken(pctx, CFG_LEXOPT_QSTRING));
+ if (pctx->token.type != isc_tokentype_qstring) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "expected quoted string");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ return (create_string(pctx,
+ TOKEN_STRING(pctx),
+ &cfg_type_qstring,
+ ret));
+ cleanup:
+ return (result);
+}
+
+static isc_result_t
+parse_ustring(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ UNUSED(type);
+
+ CHECK(cfg_gettoken(pctx, 0));
+ if (pctx->token.type != isc_tokentype_string) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "expected unquoted string");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ return (create_string(pctx,
+ TOKEN_STRING(pctx),
+ &cfg_type_ustring,
+ ret));
+ cleanup:
+ return (result);
+}
+
+isc_result_t
+cfg_parse_astring(cfg_parser_t *pctx, const cfg_type_t *type,
+ cfg_obj_t **ret)
+{
+ isc_result_t result;
+ UNUSED(type);
+
+ CHECK(cfg_getstringtoken(pctx));
+ return (create_string(pctx,
+ TOKEN_STRING(pctx),
+ &cfg_type_qstring,
+ ret));
+ cleanup:
+ return (result);
+}
+
+isc_boolean_t
+cfg_is_enum(const char *s, const char *const *enums) {
+ const char * const *p;
+ for (p = enums; *p != NULL; p++) {
+ if (strcasecmp(*p, s) == 0)
+ return (ISC_TRUE);
+ }
+ return (ISC_FALSE);
+}
+
+static isc_result_t
+check_enum(cfg_parser_t *pctx, cfg_obj_t *obj, const char *const *enums) {
+ const char *s = obj->value.string.base;
+ if (cfg_is_enum(s, enums))
+ return (ISC_R_SUCCESS);
+ cfg_parser_error(pctx, 0, "'%s' unexpected", s);
+ return (ISC_R_UNEXPECTEDTOKEN);
+}
+
+isc_result_t
+cfg_parse_enum(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+ CHECK(parse_ustring(pctx, NULL, &obj));
+ CHECK(check_enum(pctx, obj, type->of));
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+void
+cfg_doc_enum(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const char * const *p;
+ cfg_print_chars(pctx, "( ", 2);
+ for (p = type->of; *p != NULL; p++) {
+ cfg_print_cstr(pctx, *p);
+ if (p[1] != NULL)
+ cfg_print_chars(pctx, " | ", 3);
+ }
+ cfg_print_chars(pctx, " )", 2);
+}
+
+void
+cfg_print_ustring(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ cfg_print_chars(pctx, obj->value.string.base, obj->value.string.length);
+}
+
+static void
+print_qstring(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ cfg_print_chars(pctx, "\"", 1);
+ cfg_print_ustring(pctx, obj);
+ cfg_print_chars(pctx, "\"", 1);
+}
+
+static void
+free_string(cfg_parser_t *pctx, cfg_obj_t *obj) {
+ isc_mem_put(pctx->mctx, obj->value.string.base,
+ obj->value.string.length + 1);
+}
+
+isc_boolean_t
+cfg_obj_isstring(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_string));
+}
+
+const char *
+cfg_obj_asstring(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_string);
+ return (obj->value.string.base);
+}
+
+/* Quoted string only */
+cfg_type_t cfg_type_qstring = {
+ "quoted_string", cfg_parse_qstring, print_qstring, cfg_doc_terminal,
+ &cfg_rep_string, NULL
+};
+
+/* Unquoted string only */
+cfg_type_t cfg_type_ustring = {
+ "string", parse_ustring, cfg_print_ustring, cfg_doc_terminal,
+ &cfg_rep_string, NULL
+};
+
+/* Any string (quoted or unquoted); printed with quotes */
+cfg_type_t cfg_type_astring = {
+ "string", cfg_parse_astring, print_qstring, cfg_doc_terminal,
+ &cfg_rep_string, NULL
+};
+
+/*
+ * Booleans
+ */
+
+isc_boolean_t
+cfg_obj_isboolean(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_boolean));
+}
+
+isc_boolean_t
+cfg_obj_asboolean(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_boolean);
+ return (obj->value.boolean);
+}
+
+static isc_result_t
+parse_boolean(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
+{
+ isc_result_t result;
+ isc_boolean_t value;
+ cfg_obj_t *obj = NULL;
+ UNUSED(type);
+
+ result = cfg_gettoken(pctx, 0);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+
+ if (pctx->token.type != isc_tokentype_string)
+ goto bad_boolean;
+
+ if ((strcasecmp(TOKEN_STRING(pctx), "true") == 0) ||
+ (strcasecmp(TOKEN_STRING(pctx), "yes") == 0) ||
+ (strcmp(TOKEN_STRING(pctx), "1") == 0)) {
+ value = ISC_TRUE;
+ } else if ((strcasecmp(TOKEN_STRING(pctx), "false") == 0) ||
+ (strcasecmp(TOKEN_STRING(pctx), "no") == 0) ||
+ (strcmp(TOKEN_STRING(pctx), "0") == 0)) {
+ value = ISC_FALSE;
+ } else {
+ goto bad_boolean;
+ }
+
+ CHECK(cfg_create_obj(pctx, &cfg_type_boolean, &obj));
+ obj->value.boolean = value;
+ *ret = obj;
+ return (result);
+
+ bad_boolean:
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "boolean expected");
+ return (ISC_R_UNEXPECTEDTOKEN);
+
+ cleanup:
+ return (result);
+}
+
+static void
+print_boolean(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ if (obj->value.boolean)
+ cfg_print_chars(pctx, "yes", 3);
+ else
+ cfg_print_chars(pctx, "no", 2);
+}
+
+cfg_type_t cfg_type_boolean = {
+ "boolean", parse_boolean, print_boolean, cfg_doc_terminal,
+ &cfg_rep_boolean, NULL
+};
+
+/*
+ * Lists.
+ */
+
+isc_result_t
+cfg_create_list(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **obj) {
+ isc_result_t result;
+ CHECK(cfg_create_obj(pctx, type, obj));
+ ISC_LIST_INIT((*obj)->value.list);
+ cleanup:
+ return (result);
+}
+
+static isc_result_t
+create_listelt(cfg_parser_t *pctx, cfg_listelt_t **eltp) {
+ cfg_listelt_t *elt;
+ elt = isc_mem_get(pctx->mctx, sizeof(*elt));
+ if (elt == NULL)
+ return (ISC_R_NOMEMORY);
+ elt->obj = NULL;
+ ISC_LINK_INIT(elt, link);
+ *eltp = elt;
+ return (ISC_R_SUCCESS);
+}
+
+static void
+free_list_elt(cfg_parser_t *pctx, cfg_listelt_t *elt) {
+ cfg_obj_destroy(pctx, &elt->obj);
+ isc_mem_put(pctx->mctx, elt, sizeof(*elt));
+}
+
+static void
+free_list(cfg_parser_t *pctx, cfg_obj_t *obj) {
+ cfg_listelt_t *elt, *next;
+ for (elt = ISC_LIST_HEAD(obj->value.list);
+ elt != NULL;
+ elt = next)
+ {
+ next = ISC_LIST_NEXT(elt, link);
+ free_list_elt(pctx, elt);
+ }
+}
+
+isc_result_t
+cfg_parse_listelt(cfg_parser_t *pctx, const cfg_type_t *elttype,
+ cfg_listelt_t **ret)
+{
+ isc_result_t result;
+ cfg_listelt_t *elt = NULL;
+ cfg_obj_t *value = NULL;
+
+ CHECK(create_listelt(pctx, &elt));
+
+ result = cfg_parse_obj(pctx, elttype, &value);
+ if (result != ISC_R_SUCCESS)
+ goto cleanup;
+
+ elt->obj = value;
+
+ *ret = elt;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ isc_mem_put(pctx->mctx, elt, sizeof(*elt));
+ return (result);
+}
+
+/*
+ * Parse a homogeneous list whose elements are of type 'elttype'
+ * and where each element is terminated by a semicolon.
+ */
+static isc_result_t
+parse_list(cfg_parser_t *pctx, const cfg_type_t *listtype, cfg_obj_t **ret)
+{
+ cfg_obj_t *listobj = NULL;
+ const cfg_type_t *listof = listtype->of;
+ isc_result_t result;
+ cfg_listelt_t *elt = NULL;
+
+ CHECK(cfg_create_list(pctx, listtype, &listobj));
+
+ for (;;) {
+ CHECK(cfg_peektoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special &&
+ pctx->token.value.as_char == /*{*/ '}')
+ break;
+ CHECK(cfg_parse_listelt(pctx, listof, &elt));
+ CHECK(parse_semicolon(pctx));
+ ISC_LIST_APPEND(listobj->value.list, elt, link);
+ elt = NULL;
+ }
+ *ret = listobj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ if (elt != NULL)
+ free_list_elt(pctx, elt);
+ CLEANUP_OBJ(listobj);
+ return (result);
+}
+
+static void
+print_list(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ const cfg_list_t *list = &obj->value.list;
+ const cfg_listelt_t *elt;
+
+ for (elt = ISC_LIST_HEAD(*list);
+ elt != NULL;
+ elt = ISC_LIST_NEXT(elt, link)) {
+ print_indent(pctx);
+ cfg_print_obj(pctx, elt->obj);
+ cfg_print_chars(pctx, ";\n", 2);
+ }
+}
+
+isc_result_t
+cfg_parse_bracketed_list(cfg_parser_t *pctx, const cfg_type_t *type,
+ cfg_obj_t **ret)
+{
+ isc_result_t result;
+ CHECK(cfg_parse_special(pctx, '{'));
+ CHECK(parse_list(pctx, type, ret));
+ CHECK(cfg_parse_special(pctx, '}'));
+ cleanup:
+ return (result);
+}
+
+void
+cfg_print_bracketed_list(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ print_open(pctx);
+ print_list(pctx, obj);
+ print_close(pctx);
+}
+
+void
+cfg_doc_bracketed_list(cfg_printer_t *pctx, const cfg_type_t *type) {
+ cfg_print_chars(pctx, "{ ", 2);
+ cfg_doc_obj(pctx, type->of);
+ cfg_print_chars(pctx, "; ... }", 7);
+}
+
+/*
+ * Parse a homogeneous list whose elements are of type 'elttype'
+ * and where elements are separated by space. The list ends
+ * before the first semicolon.
+ */
+isc_result_t
+cfg_parse_spacelist(cfg_parser_t *pctx, const cfg_type_t *listtype,
+ cfg_obj_t **ret)
+{
+ cfg_obj_t *listobj = NULL;
+ const cfg_type_t *listof = listtype->of;
+ isc_result_t result;
+
+ CHECK(cfg_create_list(pctx, listtype, &listobj));
+
+ for (;;) {
+ cfg_listelt_t *elt = NULL;
+
+ CHECK(cfg_peektoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special &&
+ pctx->token.value.as_char == ';')
+ break;
+ CHECK(cfg_parse_listelt(pctx, listof, &elt));
+ ISC_LIST_APPEND(listobj->value.list, elt, link);
+ }
+ *ret = listobj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(listobj);
+ return (result);
+}
+
+void
+cfg_print_spacelist(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ const cfg_list_t *list = &obj->value.list;
+ const cfg_listelt_t *elt;
+
+ for (elt = ISC_LIST_HEAD(*list);
+ elt != NULL;
+ elt = ISC_LIST_NEXT(elt, link)) {
+ cfg_print_obj(pctx, elt->obj);
+ if (ISC_LIST_NEXT(elt, link) != NULL)
+ cfg_print_chars(pctx, " ", 1);
+ }
+}
+
+isc_boolean_t
+cfg_obj_islist(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_list));
+}
+
+const cfg_listelt_t *
+cfg_list_first(const cfg_obj_t *obj) {
+ REQUIRE(obj == NULL || obj->type->rep == &cfg_rep_list);
+ if (obj == NULL)
+ return (NULL);
+ return (ISC_LIST_HEAD(obj->value.list));
+}
+
+const cfg_listelt_t *
+cfg_list_next(const cfg_listelt_t *elt) {
+ REQUIRE(elt != NULL);
+ return (ISC_LIST_NEXT(elt, link));
+}
+
+const cfg_obj_t *
+cfg_listelt_value(const cfg_listelt_t *elt) {
+ REQUIRE(elt != NULL);
+ return (elt->obj);
+}
+
+/*
+ * Maps.
+ */
+
+/*
+ * Parse a map body. That's something like
+ *
+ * "foo 1; bar { glub; }; zap true; zap false;"
+ *
+ * i.e., a sequence of option names followed by values and
+ * terminated by semicolons. Used for the top level of
+ * the named.conf syntax, as well as for the body of the
+ * options, view, zone, and other statements.
+ */
+isc_result_t
+cfg_parse_mapbody(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret)
+{
+ const cfg_clausedef_t * const *clausesets = type->of;
+ isc_result_t result;
+ const cfg_clausedef_t * const *clauseset;
+ const cfg_clausedef_t *clause;
+ cfg_obj_t *value = NULL;
+ cfg_obj_t *obj = NULL;
+ cfg_obj_t *eltobj = NULL;
+ cfg_obj_t *includename = NULL;
+ isc_symvalue_t symval;
+ cfg_list_t *list = NULL;
+
+ CHECK(create_map(pctx, type, &obj));
+
+ obj->value.map.clausesets = clausesets;
+
+ for (;;) {
+ cfg_listelt_t *elt;
+
+ redo:
+ /*
+ * Parse the option name and see if it is known.
+ */
+ CHECK(cfg_gettoken(pctx, 0));
+
+ if (pctx->token.type != isc_tokentype_string) {
+ cfg_ungettoken(pctx);
+ break;
+ }
+
+ /*
+ * We accept "include" statements wherever a map body
+ * clause can occur.
+ */
+ if (strcasecmp(TOKEN_STRING(pctx), "include") == 0) {
+ /*
+ * Turn the file name into a temporary configuration
+ * object just so that it is not overwritten by the
+ * semicolon token.
+ */
+ CHECK(cfg_parse_obj(pctx, &cfg_type_qstring, &includename));
+ CHECK(parse_semicolon(pctx));
+ CHECK(parser_openfile(pctx, includename->
+ value.string.base));
+ cfg_obj_destroy(pctx, &includename);
+ goto redo;
+ }
+
+ clause = NULL;
+ for (clauseset = clausesets; *clauseset != NULL; clauseset++) {
+ for (clause = *clauseset;
+ clause->name != NULL;
+ clause++) {
+ if (strcasecmp(TOKEN_STRING(pctx),
+ clause->name) == 0)
+ goto done;
+ }
+ }
+ done:
+ if (clause == NULL || clause->name == NULL) {
+ cfg_parser_error(pctx, CFG_LOG_NOPREP, "unknown option");
+ /*
+ * Try to recover by parsing this option as an unknown
+ * option and discarding it.
+ */
+ CHECK(cfg_parse_obj(pctx, &cfg_type_unsupported, &eltobj));
+ cfg_obj_destroy(pctx, &eltobj);
+ CHECK(parse_semicolon(pctx));
+ continue;
+ }
+
+ /* Clause is known. */
+
+ /* Issue warnings if appropriate */
+ if ((clause->flags & CFG_CLAUSEFLAG_OBSOLETE) != 0)
+ cfg_parser_warning(pctx, 0, "option '%s' is obsolete",
+ clause->name);
+ if ((clause->flags & CFG_CLAUSEFLAG_NOTIMP) != 0)
+ cfg_parser_warning(pctx, 0, "option '%s' is "
+ "not implemented", clause->name);
+ if ((clause->flags & CFG_CLAUSEFLAG_NYI) != 0)
+ cfg_parser_warning(pctx, 0, "option '%s' is "
+ "not implemented", clause->name);
+ /*
+ * Don't log options with CFG_CLAUSEFLAG_NEWDEFAULT
+ * set here - we need to log the *lack* of such an option,
+ * not its presence.
+ */
+
+ /* See if the clause already has a value; if not create one. */
+ result = isc_symtab_lookup(obj->value.map.symtab,
+ clause->name, 0, &symval);
+
+ if ((clause->flags & CFG_CLAUSEFLAG_MULTI) != 0) {
+ /* Multivalued clause */
+ cfg_obj_t *listobj = NULL;
+ if (result == ISC_R_NOTFOUND) {
+ CHECK(cfg_create_list(pctx,
+ &cfg_type_implicitlist,
+ &listobj));
+ symval.as_pointer = listobj;
+ result = isc_symtab_define(obj->value.
+ map.symtab,
+ clause->name,
+ 1, symval,
+ isc_symexists_reject);
+ if (result != ISC_R_SUCCESS) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "isc_symtab_define(%s) "
+ "failed", clause->name);
+ isc_mem_put(pctx->mctx, list,
+ sizeof(cfg_list_t));
+ goto cleanup;
+ }
+ } else {
+ INSIST(result == ISC_R_SUCCESS);
+ listobj = symval.as_pointer;
+ }
+
+ elt = NULL;
+ CHECK(cfg_parse_listelt(pctx, clause->type, &elt));
+ CHECK(parse_semicolon(pctx));
+
+ ISC_LIST_APPEND(listobj->value.list, elt, link);
+ } else {
+ /* Single-valued clause */
+ if (result == ISC_R_NOTFOUND) {
+ isc_boolean_t callback =
+ ISC_TF((clause->flags &
+ CFG_CLAUSEFLAG_CALLBACK) != 0);
+ CHECK(parse_symtab_elt(pctx, clause->name,
+ clause->type,
+ obj->value.map.symtab,
+ callback));
+ CHECK(parse_semicolon(pctx));
+ } else if (result == ISC_R_SUCCESS) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "'%s' redefined",
+ clause->name);
+ result = ISC_R_EXISTS;
+ goto cleanup;
+ } else {
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "isc_symtab_define() failed");
+ goto cleanup;
+ }
+ }
+ }
+
+
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(value);
+ CLEANUP_OBJ(obj);
+ CLEANUP_OBJ(eltobj);
+ CLEANUP_OBJ(includename);
+ return (result);
+}
+
+static isc_result_t
+parse_symtab_elt(cfg_parser_t *pctx, const char *name,
+ cfg_type_t *elttype, isc_symtab_t *symtab,
+ isc_boolean_t callback)
+{
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+ isc_symvalue_t symval;
+
+ CHECK(cfg_parse_obj(pctx, elttype, &obj));
+
+ if (callback && pctx->callback != NULL)
+ CHECK(pctx->callback(name, obj, pctx->callbackarg));
+
+ symval.as_pointer = obj;
+ CHECK(isc_symtab_define(symtab, name,
+ 1, symval,
+ isc_symexists_reject));
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+/*
+ * Parse a map; e.g., "{ foo 1; bar { glub; }; zap true; zap false; }"
+ */
+isc_result_t
+cfg_parse_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ CHECK(cfg_parse_special(pctx, '{'));
+ CHECK(cfg_parse_mapbody(pctx, type, ret));
+ CHECK(cfg_parse_special(pctx, '}'));
+ cleanup:
+ return (result);
+}
+
+/*
+ * Subroutine for cfg_parse_named_map() and cfg_parse_addressed_map().
+ */
+static isc_result_t
+parse_any_named_map(cfg_parser_t *pctx, cfg_type_t *nametype, const cfg_type_t *type,
+ cfg_obj_t **ret)
+{
+ isc_result_t result;
+ cfg_obj_t *idobj = NULL;
+ cfg_obj_t *mapobj = NULL;
+
+ CHECK(cfg_parse_obj(pctx, nametype, &idobj));
+ CHECK(cfg_parse_map(pctx, type, &mapobj));
+ mapobj->value.map.id = idobj;
+ idobj = NULL;
+ *ret = mapobj;
+ cleanup:
+ CLEANUP_OBJ(idobj);
+ return (result);
+}
+
+/*
+ * Parse a map identified by a string name. E.g., "name { foo 1; }".
+ * Used for the "key" and "channel" statements.
+ */
+isc_result_t
+cfg_parse_named_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ return (parse_any_named_map(pctx, &cfg_type_astring, type, ret));
+}
+
+/*
+ * Parse a map identified by a network address.
+ * Used to be used for the "server" statement.
+ */
+isc_result_t
+cfg_parse_addressed_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ return (parse_any_named_map(pctx, &cfg_type_netaddr, type, ret));
+}
+
+/*
+ * Parse a map identified by a network prefix.
+ * Used for the "server" statement.
+ */
+isc_result_t
+cfg_parse_netprefix_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ return (parse_any_named_map(pctx, &cfg_type_netprefix, type, ret));
+}
+
+void
+cfg_print_mapbody(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ isc_result_t result = ISC_R_SUCCESS;
+
+ const cfg_clausedef_t * const *clauseset;
+
+ for (clauseset = obj->value.map.clausesets;
+ *clauseset != NULL;
+ clauseset++)
+ {
+ isc_symvalue_t symval;
+ const cfg_clausedef_t *clause;
+
+ for (clause = *clauseset;
+ clause->name != NULL;
+ clause++) {
+ result = isc_symtab_lookup(obj->value.map.symtab,
+ clause->name, 0, &symval);
+ if (result == ISC_R_SUCCESS) {
+ cfg_obj_t *obj = symval.as_pointer;
+ if (obj->type == &cfg_type_implicitlist) {
+ /* Multivalued. */
+ cfg_list_t *list = &obj->value.list;
+ cfg_listelt_t *elt;
+ for (elt = ISC_LIST_HEAD(*list);
+ elt != NULL;
+ elt = ISC_LIST_NEXT(elt, link)) {
+ print_indent(pctx);
+ cfg_print_cstr(pctx, clause->name);
+ cfg_print_chars(pctx, " ", 1);
+ cfg_print_obj(pctx, elt->obj);
+ cfg_print_chars(pctx, ";\n", 2);
+ }
+ } else {
+ /* Single-valued. */
+ print_indent(pctx);
+ cfg_print_cstr(pctx, clause->name);
+ cfg_print_chars(pctx, " ", 1);
+ cfg_print_obj(pctx, obj);
+ cfg_print_chars(pctx, ";\n", 2);
+ }
+ } else if (result == ISC_R_NOTFOUND) {
+ ; /* do nothing */
+ } else {
+ INSIST(0);
+ }
+ }
+ }
+}
+
+void
+cfg_doc_mapbody(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const cfg_clausedef_t * const *clauseset;
+ const cfg_clausedef_t *clause;
+
+ for (clauseset = type->of; *clauseset != NULL; clauseset++) {
+ for (clause = *clauseset;
+ clause->name != NULL;
+ clause++) {
+ cfg_print_cstr(pctx, clause->name);
+ cfg_print_chars(pctx, " ", 1);
+ cfg_doc_obj(pctx, clause->type);
+ cfg_print_chars(pctx, ";", 1);
+ /* XXX print flags here? */
+ cfg_print_chars(pctx, "\n\n", 2);
+ }
+ }
+}
+
+static struct flagtext {
+ unsigned int flag;
+ const char *text;
+} flagtexts[] = {
+ { CFG_CLAUSEFLAG_NOTIMP, "not implemented" },
+ { CFG_CLAUSEFLAG_NYI, "not yet implemented" },
+ { CFG_CLAUSEFLAG_OBSOLETE, "obsolete" },
+ { CFG_CLAUSEFLAG_NEWDEFAULT, "default changed" },
+ { 0, NULL }
+};
+
+void
+cfg_print_map(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ if (obj->value.map.id != NULL) {
+ cfg_print_obj(pctx, obj->value.map.id);
+ cfg_print_chars(pctx, " ", 1);
+ }
+ print_open(pctx);
+ cfg_print_mapbody(pctx, obj);
+ print_close(pctx);
+}
+
+static void
+print_clause_flags(cfg_printer_t *pctx, unsigned int flags) {
+ struct flagtext *p;
+ isc_boolean_t first = ISC_TRUE;
+ for (p = flagtexts; p->flag != 0; p++) {
+ if ((flags & p->flag) != 0) {
+ if (first)
+ cfg_print_chars(pctx, " // ", 4);
+ else
+ cfg_print_chars(pctx, ", ", 2);
+ cfg_print_cstr(pctx, p->text);
+ first = ISC_FALSE;
+ }
+ }
+}
+
+void
+cfg_doc_map(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const cfg_clausedef_t * const *clauseset;
+ const cfg_clausedef_t *clause;
+
+ if (type->parse == cfg_parse_named_map) {
+ cfg_doc_obj(pctx, &cfg_type_astring);
+ cfg_print_chars(pctx, " ", 1);
+ } else if (type->parse == cfg_parse_addressed_map) {
+ cfg_doc_obj(pctx, &cfg_type_netaddr);
+ cfg_print_chars(pctx, " ", 1);
+ } else if (type->parse == cfg_parse_netprefix_map) {
+ cfg_doc_obj(pctx, &cfg_type_netprefix);
+ cfg_print_chars(pctx, " ", 1);
+ }
+
+ print_open(pctx);
+
+ for (clauseset = type->of; *clauseset != NULL; clauseset++) {
+ for (clause = *clauseset;
+ clause->name != NULL;
+ clause++) {
+ print_indent(pctx);
+ cfg_print_cstr(pctx, clause->name);
+ if (clause->type->print != cfg_print_void)
+ cfg_print_chars(pctx, " ", 1);
+ cfg_doc_obj(pctx, clause->type);
+ cfg_print_chars(pctx, ";", 1);
+ print_clause_flags(pctx, clause->flags);
+ cfg_print_chars(pctx, "\n", 1);
+ }
+ }
+ print_close(pctx);
+}
+
+isc_boolean_t
+cfg_obj_ismap(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_map));
+}
+
+isc_result_t
+cfg_map_get(const cfg_obj_t *mapobj, const char* name, const cfg_obj_t **obj) {
+ isc_result_t result;
+ isc_symvalue_t val;
+ const cfg_map_t *map;
+
+ REQUIRE(mapobj != NULL && mapobj->type->rep == &cfg_rep_map);
+ REQUIRE(name != NULL);
+ REQUIRE(obj != NULL && *obj == NULL);
+
+ map = &mapobj->value.map;
+
+ result = isc_symtab_lookup(map->symtab, name, MAP_SYM, &val);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+ *obj = val.as_pointer;
+ return (ISC_R_SUCCESS);
+}
+
+const cfg_obj_t *
+cfg_map_getname(const cfg_obj_t *mapobj) {
+ REQUIRE(mapobj != NULL && mapobj->type->rep == &cfg_rep_map);
+ return (mapobj->value.map.id);
+}
+
+
+/* Parse an arbitrary token, storing its raw text representation. */
+static isc_result_t
+parse_token(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ cfg_obj_t *obj = NULL;
+ isc_result_t result;
+ isc_region_t r;
+
+ UNUSED(type);
+
+ CHECK(cfg_create_obj(pctx, &cfg_type_token, &obj));
+ CHECK(cfg_gettoken(pctx, CFG_LEXOPT_QSTRING));
+ if (pctx->token.type == isc_tokentype_eof) {
+ cfg_ungettoken(pctx);
+ result = ISC_R_EOF;
+ goto cleanup;
+ }
+
+ isc_lex_getlasttokentext(pctx->lexer, &pctx->token, &r);
+
+ obj->value.string.base = isc_mem_get(pctx->mctx, r.length + 1);
+ if (obj->value.string.base == NULL) {
+ result = ISC_R_NOMEMORY;
+ goto cleanup;
+ }
+ obj->value.string.length = r.length;
+ memcpy(obj->value.string.base, r.base, r.length);
+ obj->value.string.base[r.length] = '\0';
+ *ret = obj;
+ return (result);
+
+ cleanup:
+ if (obj != NULL)
+ isc_mem_put(pctx->mctx, obj, sizeof(*obj));
+ return (result);
+}
+
+cfg_type_t cfg_type_token = {
+ "token", parse_token, cfg_print_ustring, cfg_doc_terminal,
+ &cfg_rep_string, NULL
+};
+
+/*
+ * An unsupported option. This is just a list of tokens with balanced braces
+ * ending in a semicolon.
+ */
+
+static isc_result_t
+parse_unsupported(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ cfg_obj_t *listobj = NULL;
+ isc_result_t result;
+ int braces = 0;
+
+ CHECK(cfg_create_list(pctx, type, &listobj));
+
+ for (;;) {
+ cfg_listelt_t *elt = NULL;
+
+ CHECK(cfg_peektoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special) {
+ if (pctx->token.value.as_char == '{')
+ braces++;
+ else if (pctx->token.value.as_char == '}')
+ braces--;
+ else if (pctx->token.value.as_char == ';')
+ if (braces == 0)
+ break;
+ }
+ if (pctx->token.type == isc_tokentype_eof || braces < 0) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "unexpected token");
+ result = ISC_R_UNEXPECTEDTOKEN;
+ goto cleanup;
+ }
+
+ CHECK(cfg_parse_listelt(pctx, &cfg_type_token, &elt));
+ ISC_LIST_APPEND(listobj->value.list, elt, link);
+ }
+ INSIST(braces == 0);
+ *ret = listobj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(listobj);
+ return (result);
+}
+
+cfg_type_t cfg_type_unsupported = {
+ "unsupported", parse_unsupported, cfg_print_spacelist, cfg_doc_terminal,
+ &cfg_rep_list, NULL
+};
+
+/*
+ * Try interpreting the current token as a network address.
+ *
+ * If CFG_ADDR_WILDOK is set in flags, "*" can be used as a wildcard
+ * and at least one of CFG_ADDR_V4OK and CFG_ADDR_V6OK must also be set. The
+ * "*" is interpreted as the IPv4 wildcard address if CFG_ADDR_V4OK is
+ * set (including the case where CFG_ADDR_V4OK and CFG_ADDR_V6OK are both set),
+ * and the IPv6 wildcard address otherwise.
+ */
+static isc_result_t
+token_addr(cfg_parser_t *pctx, unsigned int flags, isc_netaddr_t *na) {
+ char *s;
+ struct in_addr in4a;
+ struct in6_addr in6a;
+
+ if (pctx->token.type != isc_tokentype_string)
+ return (ISC_R_UNEXPECTEDTOKEN);
+
+ s = TOKEN_STRING(pctx);
+ if ((flags & CFG_ADDR_WILDOK) != 0 && strcmp(s, "*") == 0) {
+ if ((flags & CFG_ADDR_V4OK) != 0) {
+ isc_netaddr_any(na);
+ return (ISC_R_SUCCESS);
+ } else if ((flags & CFG_ADDR_V6OK) != 0) {
+ isc_netaddr_any6(na);
+ return (ISC_R_SUCCESS);
+ } else {
+ INSIST(0);
+ }
+ } else {
+ if ((flags & (CFG_ADDR_V4OK | CFG_ADDR_V4PREFIXOK)) != 0) {
+ if (inet_pton(AF_INET, s, &in4a) == 1) {
+ isc_netaddr_fromin(na, &in4a);
+ return (ISC_R_SUCCESS);
+ }
+ }
+ if ((flags & CFG_ADDR_V4PREFIXOK) != 0 &&
+ strlen(s) <= 15U) {
+ char buf[64];
+ int i;
+
+ strcpy(buf, s);
+ for (i = 0; i < 3; i++) {
+ strcat(buf, ".0");
+ if (inet_pton(AF_INET, buf, &in4a) == 1) {
+ isc_netaddr_fromin(na, &in4a);
+ return (ISC_R_SUCCESS);
+ }
+ }
+ }
+ if ((flags & CFG_ADDR_V6OK) != 0 &&
+ strlen(s) <= 127U) {
+ char buf[128]; /* see lib/bind9/getaddresses.c */
+ char *d; /* zone delimiter */
+ isc_uint32_t zone = 0; /* scope zone ID */
+
+ strcpy(buf, s);
+ d = strchr(buf, '%');
+ if (d != NULL)
+ *d = '\0';
+
+ if (inet_pton(AF_INET6, buf, &in6a) == 1) {
+ if (d != NULL) {
+#ifdef ISC_PLATFORM_HAVESCOPEID
+ isc_result_t result;
+
+ result = isc_netscope_pton(AF_INET6,
+ d + 1,
+ &in6a,
+ &zone);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+#else
+ return (ISC_R_BADADDRESSFORM);
+#endif
+ }
+
+ isc_netaddr_fromin6(na, &in6a);
+ isc_netaddr_setzone(na, zone);
+ return (ISC_R_SUCCESS);
+ }
+ }
+ }
+ return (ISC_R_UNEXPECTEDTOKEN);
+}
+
+isc_result_t
+cfg_parse_rawaddr(cfg_parser_t *pctx, unsigned int flags, isc_netaddr_t *na) {
+ isc_result_t result;
+ const char *wild = "";
+ const char *prefix = "";
+
+ CHECK(cfg_gettoken(pctx, 0));
+ result = token_addr(pctx, flags, na);
+ if (result == ISC_R_UNEXPECTEDTOKEN) {
+ if ((flags & CFG_ADDR_WILDOK) != 0)
+ wild = " or '*'";
+ if ((flags & CFG_ADDR_V4PREFIXOK) != 0)
+ wild = " or IPv4 prefix";
+ if ((flags & CFG_ADDR_MASK) == CFG_ADDR_V4OK)
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "expected IPv4 address%s%s",
+ prefix, wild);
+ else if ((flags & CFG_ADDR_MASK) == CFG_ADDR_V6OK)
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "expected IPv6 address%s%s",
+ prefix, wild);
+ else
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "expected IP address%s%s",
+ prefix, wild);
+ }
+ cleanup:
+ return (result);
+}
+
+isc_boolean_t
+cfg_lookingat_netaddr(cfg_parser_t *pctx, unsigned int flags) {
+ isc_result_t result;
+ isc_netaddr_t na_dummy;
+ result = token_addr(pctx, flags, &na_dummy);
+ return (ISC_TF(result == ISC_R_SUCCESS));
+}
+
+isc_result_t
+cfg_parse_rawport(cfg_parser_t *pctx, unsigned int flags, in_port_t *port) {
+ isc_result_t result;
+
+ CHECK(cfg_gettoken(pctx, ISC_LEXOPT_NUMBER));
+
+ if ((flags & CFG_ADDR_WILDOK) != 0 &&
+ pctx->token.type == isc_tokentype_string &&
+ strcmp(TOKEN_STRING(pctx), "*") == 0) {
+ *port = 0;
+ return (ISC_R_SUCCESS);
+ }
+ if (pctx->token.type != isc_tokentype_number) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "expected port number or '*'");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ if (pctx->token.value.as_ulong >= 65536U) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "port number out of range");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ *port = (in_port_t)(pctx->token.value.as_ulong);
+ return (ISC_R_SUCCESS);
+ cleanup:
+ return (result);
+}
+
+void
+cfg_print_rawaddr(cfg_printer_t *pctx, const isc_netaddr_t *na) {
+ isc_result_t result;
+ char text[128];
+ isc_buffer_t buf;
+
+ isc_buffer_init(&buf, text, sizeof(text));
+ result = isc_netaddr_totext(na, &buf);
+ RUNTIME_CHECK(result == ISC_R_SUCCESS);
+ cfg_print_chars(pctx, isc_buffer_base(&buf), isc_buffer_usedlength(&buf));
+}
+
+/* netaddr */
+
+static unsigned int netaddr_flags = CFG_ADDR_V4OK | CFG_ADDR_V6OK;
+static unsigned int netaddr4_flags = CFG_ADDR_V4OK;
+static unsigned int netaddr4wild_flags = CFG_ADDR_V4OK | CFG_ADDR_WILDOK;
+static unsigned int netaddr6_flags = CFG_ADDR_V6OK;
+static unsigned int netaddr6wild_flags = CFG_ADDR_V6OK | CFG_ADDR_WILDOK;
+
+static isc_result_t
+parse_netaddr(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ cfg_obj_t *obj = NULL;
+ isc_netaddr_t netaddr;
+ unsigned int flags = *(const unsigned int *)type->of;
+
+ CHECK(cfg_create_obj(pctx, type, &obj));
+ CHECK(cfg_parse_rawaddr(pctx, flags, &netaddr));
+ isc_sockaddr_fromnetaddr(&obj->value.sockaddr, &netaddr, 0);
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+static void
+cfg_doc_netaddr(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const unsigned int *flagp = type->of;
+ int n = 0;
+ if (*flagp != CFG_ADDR_V4OK && *flagp != CFG_ADDR_V6OK)
+ cfg_print_chars(pctx, "( ", 2);
+ if (*flagp & CFG_ADDR_V4OK) {
+ cfg_print_cstr(pctx, "<ipv4_address>");
+ n++;
+ }
+ if (*flagp & CFG_ADDR_V6OK) {
+ if (n != 0)
+ cfg_print_chars(pctx, " | ", 3);
+ cfg_print_cstr(pctx, "<ipv6_address>");
+ n++;
+ }
+ if (*flagp & CFG_ADDR_WILDOK) {
+ if (n != 0)
+ cfg_print_chars(pctx, " | ", 3);
+ cfg_print_chars(pctx, "*", 1);
+ n++;
+ }
+ if (*flagp != CFG_ADDR_V4OK && *flagp != CFG_ADDR_V6OK)
+ cfg_print_chars(pctx, " )", 2);
+}
+
+cfg_type_t cfg_type_netaddr = {
+ "netaddr", parse_netaddr, cfg_print_sockaddr, cfg_doc_netaddr,
+ &cfg_rep_sockaddr, &netaddr_flags
+};
+
+cfg_type_t cfg_type_netaddr4 = {
+ "netaddr4", parse_netaddr, cfg_print_sockaddr, cfg_doc_netaddr,
+ &cfg_rep_sockaddr, &netaddr4_flags
+};
+
+cfg_type_t cfg_type_netaddr4wild = {
+ "netaddr4wild", parse_netaddr, cfg_print_sockaddr, cfg_doc_netaddr,
+ &cfg_rep_sockaddr, &netaddr4wild_flags
+};
+
+cfg_type_t cfg_type_netaddr6 = {
+ "netaddr6", parse_netaddr, cfg_print_sockaddr, cfg_doc_netaddr,
+ &cfg_rep_sockaddr, &netaddr6_flags
+};
+
+cfg_type_t cfg_type_netaddr6wild = {
+ "netaddr6wild", parse_netaddr, cfg_print_sockaddr, cfg_doc_netaddr,
+ &cfg_rep_sockaddr, &netaddr6wild_flags
+};
+
+/* netprefix */
+
+isc_result_t
+cfg_parse_netprefix(cfg_parser_t *pctx, const cfg_type_t *type,
+ cfg_obj_t **ret)
+{
+ cfg_obj_t *obj = NULL;
+ isc_result_t result;
+ isc_netaddr_t netaddr;
+ unsigned int addrlen, prefixlen;
+ UNUSED(type);
+
+ CHECK(cfg_parse_rawaddr(pctx, CFG_ADDR_V4OK | CFG_ADDR_V4PREFIXOK |
+ CFG_ADDR_V6OK, &netaddr));
+ switch (netaddr.family) {
+ case AF_INET:
+ addrlen = 32;
+ break;
+ case AF_INET6:
+ addrlen = 128;
+ break;
+ default:
+ addrlen = 0;
+ INSIST(0);
+ break;
+ }
+ CHECK(cfg_peektoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_special &&
+ pctx->token.value.as_char == '/') {
+ CHECK(cfg_gettoken(pctx, 0)); /* read "/" */
+ CHECK(cfg_gettoken(pctx, ISC_LEXOPT_NUMBER));
+ if (pctx->token.type != isc_tokentype_number) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR,
+ "expected prefix length");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ prefixlen = pctx->token.value.as_ulong;
+ if (prefixlen > addrlen) {
+ cfg_parser_error(pctx, CFG_LOG_NOPREP,
+ "invalid prefix length");
+ return (ISC_R_RANGE);
+ }
+ } else {
+ prefixlen = addrlen;
+ }
+ CHECK(cfg_create_obj(pctx, &cfg_type_netprefix, &obj));
+ obj->value.netprefix.address = netaddr;
+ obj->value.netprefix.prefixlen = prefixlen;
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+ cleanup:
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "expected network prefix");
+ return (result);
+}
+
+static void
+print_netprefix(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ const cfg_netprefix_t *p = &obj->value.netprefix;
+
+ cfg_print_rawaddr(pctx, &p->address);
+ cfg_print_chars(pctx, "/", 1);
+ cfg_print_rawuint(pctx, p->prefixlen);
+}
+
+isc_boolean_t
+cfg_obj_isnetprefix(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_netprefix));
+}
+
+void
+cfg_obj_asnetprefix(const cfg_obj_t *obj, isc_netaddr_t *netaddr,
+ unsigned int *prefixlen) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_netprefix);
+ *netaddr = obj->value.netprefix.address;
+ *prefixlen = obj->value.netprefix.prefixlen;
+}
+
+cfg_type_t cfg_type_netprefix = {
+ "netprefix", cfg_parse_netprefix, print_netprefix, cfg_doc_terminal,
+ &cfg_rep_netprefix, NULL
+};
+
+static isc_result_t
+parse_sockaddrsub(cfg_parser_t *pctx, const cfg_type_t *type,
+ int flags, cfg_obj_t **ret)
+{
+ isc_result_t result;
+ isc_netaddr_t netaddr;
+ in_port_t port = 0;
+ cfg_obj_t *obj = NULL;
+
+ CHECK(cfg_create_obj(pctx, type, &obj));
+ CHECK(cfg_parse_rawaddr(pctx, flags, &netaddr));
+ CHECK(cfg_peektoken(pctx, 0));
+ if (pctx->token.type == isc_tokentype_string &&
+ strcasecmp(TOKEN_STRING(pctx), "port") == 0) {
+ CHECK(cfg_gettoken(pctx, 0)); /* read "port" */
+ CHECK(cfg_parse_rawport(pctx, flags, &port));
+ }
+ isc_sockaddr_fromnetaddr(&obj->value.sockaddr, &netaddr, port);
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ CLEANUP_OBJ(obj);
+ return (result);
+}
+
+static unsigned int sockaddr_flags = CFG_ADDR_V4OK | CFG_ADDR_V6OK;
+cfg_type_t cfg_type_sockaddr = {
+ "sockaddr", cfg_parse_sockaddr, cfg_print_sockaddr, cfg_doc_sockaddr,
+ &cfg_rep_sockaddr, &sockaddr_flags
+};
+
+isc_result_t
+cfg_parse_sockaddr(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ const unsigned int *flagp = type->of;
+ return (parse_sockaddrsub(pctx, &cfg_type_sockaddr, *flagp, ret));
+}
+
+void
+cfg_print_sockaddr(cfg_printer_t *pctx, const cfg_obj_t *obj) {
+ isc_netaddr_t netaddr;
+ in_port_t port;
+ char buf[ISC_NETADDR_FORMATSIZE];
+
+ isc_netaddr_fromsockaddr(&netaddr, &obj->value.sockaddr);
+ isc_netaddr_format(&netaddr, buf, sizeof(buf));
+ cfg_print_cstr(pctx, buf);
+ port = isc_sockaddr_getport(&obj->value.sockaddr);
+ if (port != 0) {
+ cfg_print_chars(pctx, " port ", 6);
+ cfg_print_rawuint(pctx, port);
+ }
+}
+
+void
+cfg_doc_sockaddr(cfg_printer_t *pctx, const cfg_type_t *type) {
+ const unsigned int *flagp = type->of;
+ int n = 0;
+ cfg_print_chars(pctx, "( ", 2);
+ if (*flagp & CFG_ADDR_V4OK) {
+ cfg_print_cstr(pctx, "<ipv4_address>");
+ n++;
+ }
+ if (*flagp & CFG_ADDR_V6OK) {
+ if (n != 0)
+ cfg_print_chars(pctx, " | ", 3);
+ cfg_print_cstr(pctx, "<ipv6_address>");
+ n++;
+ }
+ if (*flagp & CFG_ADDR_WILDOK) {
+ if (n != 0)
+ cfg_print_chars(pctx, " | ", 3);
+ cfg_print_chars(pctx, "*", 1);
+ n++;
+ }
+ cfg_print_chars(pctx, " ) ", 3);
+ if (*flagp & CFG_ADDR_WILDOK) {
+ cfg_print_cstr(pctx, "[ port ( <integer> | * ) ]");
+ } else {
+ cfg_print_cstr(pctx, "[ port <integer> ]");
+ }
+}
+
+isc_boolean_t
+cfg_obj_issockaddr(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL);
+ return (ISC_TF(obj->type->rep == &cfg_rep_sockaddr));
+}
+
+const isc_sockaddr_t *
+cfg_obj_assockaddr(const cfg_obj_t *obj) {
+ REQUIRE(obj != NULL && obj->type->rep == &cfg_rep_sockaddr);
+ return (&obj->value.sockaddr);
+}
+
+isc_result_t
+cfg_gettoken(cfg_parser_t *pctx, int options) {
+ isc_result_t result;
+
+ if (pctx->seen_eof)
+ return (ISC_R_SUCCESS);
+
+ options |= (ISC_LEXOPT_EOF | ISC_LEXOPT_NOMORE);
+
+ redo:
+ pctx->token.type = isc_tokentype_unknown;
+ result = isc_lex_gettoken(pctx->lexer, options, &pctx->token);
+ pctx->ungotten = ISC_FALSE;
+ pctx->line = isc_lex_getsourceline(pctx->lexer);
+
+ switch (result) {
+ case ISC_R_SUCCESS:
+ if (pctx->token.type == isc_tokentype_eof) {
+ result = isc_lex_close(pctx->lexer);
+ INSIST(result == ISC_R_NOMORE ||
+ result == ISC_R_SUCCESS);
+
+ if (isc_lex_getsourcename(pctx->lexer) != NULL) {
+ /*
+ * Closed an included file, not the main file.
+ */
+ cfg_listelt_t *elt;
+ elt = ISC_LIST_TAIL(pctx->open_files->
+ value.list);
+ INSIST(elt != NULL);
+ ISC_LIST_UNLINK(pctx->open_files->
+ value.list, elt, link);
+ ISC_LIST_APPEND(pctx->closed_files->
+ value.list, elt, link);
+ goto redo;
+ }
+ pctx->seen_eof = ISC_TRUE;
+ }
+ break;
+
+ case ISC_R_NOSPACE:
+ /* More understandable than "ran out of space". */
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "token too big");
+ break;
+
+ case ISC_R_IOERROR:
+ cfg_parser_error(pctx, 0, "%s",
+ isc_result_totext(result));
+ break;
+
+ default:
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "%s",
+ isc_result_totext(result));
+ break;
+ }
+ return (result);
+}
+
+void
+cfg_ungettoken(cfg_parser_t *pctx) {
+ if (pctx->seen_eof)
+ return;
+ isc_lex_ungettoken(pctx->lexer, &pctx->token);
+ pctx->ungotten = ISC_TRUE;
+}
+
+isc_result_t
+cfg_peektoken(cfg_parser_t *pctx, int options) {
+ isc_result_t result;
+ CHECK(cfg_gettoken(pctx, options));
+ cfg_ungettoken(pctx);
+ cleanup:
+ return (result);
+}
+
+/*
+ * Get a string token, accepting both the quoted and the unquoted form.
+ * Log an error if the next token is not a string.
+ */
+static isc_result_t
+cfg_getstringtoken(cfg_parser_t *pctx) {
+ isc_result_t result;
+
+ result = cfg_gettoken(pctx, CFG_LEXOPT_QSTRING);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+
+ if (pctx->token.type != isc_tokentype_string &&
+ pctx->token.type != isc_tokentype_qstring) {
+ cfg_parser_error(pctx, CFG_LOG_NEAR, "expected string");
+ return (ISC_R_UNEXPECTEDTOKEN);
+ }
+ return (ISC_R_SUCCESS);
+}
+
+void
+cfg_parser_error(cfg_parser_t *pctx, unsigned int flags, const char *fmt, ...) {
+ va_list args;
+ va_start(args, fmt);
+ parser_complain(pctx, ISC_FALSE, flags, fmt, args);
+ va_end(args);
+ pctx->errors++;
+}
+
+void
+cfg_parser_warning(cfg_parser_t *pctx, unsigned int flags, const char *fmt, ...) {
+ va_list args;
+ va_start(args, fmt);
+ parser_complain(pctx, ISC_TRUE, flags, fmt, args);
+ va_end(args);
+ pctx->warnings++;
+}
+
+#define MAX_LOG_TOKEN 30 /* How much of a token to quote in log messages. */
+
+static char *
+current_file(cfg_parser_t *pctx) {
+ static char none[] = "none";
+ cfg_listelt_t *elt;
+ cfg_obj_t *fileobj;
+
+ if (pctx->open_files == NULL)
+ return (none);
+ elt = ISC_LIST_TAIL(pctx->open_files->value.list);
+ if (elt == NULL)
+ return (none);
+
+ fileobj = elt->obj;
+ INSIST(fileobj->type == &cfg_type_qstring);
+ return (fileobj->value.string.base);
+}
+
+static void
+parser_complain(cfg_parser_t *pctx, isc_boolean_t is_warning,
+ unsigned int flags, const char *format,
+ va_list args)
+{
+ char tokenbuf[MAX_LOG_TOKEN + 10];
+ static char where[ISC_DIR_PATHMAX + 100];
+ static char message[2048];
+ int level = ISC_LOG_ERROR;
+ const char *prep = "";
+ size_t len;
+
+ if (is_warning)
+ level = ISC_LOG_WARNING;
+
+ snprintf(where, sizeof(where), "%s:%u: ",
+ current_file(pctx), pctx->line);
+
+ len = vsnprintf(message, sizeof(message), format, args);
+ if (len >= sizeof(message))
+ FATAL_ERROR(__FILE__, __LINE__,
+ "error message would overflow");
+
+ if ((flags & (CFG_LOG_NEAR|CFG_LOG_BEFORE|CFG_LOG_NOPREP)) != 0) {
+ isc_region_t r;
+
+ if (pctx->ungotten)
+ (void)cfg_gettoken(pctx, 0);
+
+ if (pctx->token.type == isc_tokentype_eof) {
+ snprintf(tokenbuf, sizeof(tokenbuf), "end of file");
+ } else if (pctx->token.type == isc_tokentype_unknown) {
+ flags = 0;
+ tokenbuf[0] = '\0';
+ } else {
+ isc_lex_getlasttokentext(pctx->lexer,
+ &pctx->token, &r);
+ if (r.length > MAX_LOG_TOKEN)
+ snprintf(tokenbuf, sizeof(tokenbuf),
+ "'%.*s...'", MAX_LOG_TOKEN, r.base);
+ else
+ snprintf(tokenbuf, sizeof(tokenbuf),
+ "'%.*s'", (int)r.length, r.base);
+ }
+
+ /* Choose a preposition. */
+ if (flags & CFG_LOG_NEAR)
+ prep = " near ";
+ else if (flags & CFG_LOG_BEFORE)
+ prep = " before ";
+ else
+ prep = " ";
+ } else {
+ tokenbuf[0] = '\0';
+ }
+ isc_log_write(pctx->lctx, CAT, MOD, level,
+ "%s%s%s%s", where, message, prep, tokenbuf);
+}
+
+void
+cfg_obj_log(const cfg_obj_t *obj, isc_log_t *lctx, int level,
+ const char *fmt, ...) {
+ va_list ap;
+ char msgbuf[2048];
+
+ if (! isc_log_wouldlog(lctx, level))
+ return;
+
+ va_start(ap, fmt);
+
+ vsnprintf(msgbuf, sizeof(msgbuf), fmt, ap);
+ isc_log_write(lctx, CAT, MOD, level,
+ "%s:%u: %s",
+ obj->file == NULL ? "<unknown file>" : obj->file,
+ obj->line, msgbuf);
+ va_end(ap);
+}
+
+const char *
+cfg_obj_file(const cfg_obj_t *obj) {
+ return (obj->file);
+}
+
+unsigned int
+cfg_obj_line(const cfg_obj_t *obj) {
+ return (obj->line);
+}
+
+isc_result_t
+cfg_create_obj(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ cfg_obj_t *obj;
+
+ obj = isc_mem_get(pctx->mctx, sizeof(cfg_obj_t));
+ if (obj == NULL)
+ return (ISC_R_NOMEMORY);
+ obj->type = type;
+ obj->file = current_file(pctx);
+ obj->line = pctx->line;
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+}
+
+static void
+map_symtabitem_destroy(char *key, unsigned int type,
+ isc_symvalue_t symval, void *userarg)
+{
+ cfg_obj_t *obj = symval.as_pointer;
+ cfg_parser_t *pctx = (cfg_parser_t *)userarg;
+
+ UNUSED(key);
+ UNUSED(type);
+
+ cfg_obj_destroy(pctx, &obj);
+}
+
+
+static isc_result_t
+create_map(cfg_parser_t *pctx, const cfg_type_t *type, cfg_obj_t **ret) {
+ isc_result_t result;
+ isc_symtab_t *symtab = NULL;
+ cfg_obj_t *obj = NULL;
+
+ CHECK(cfg_create_obj(pctx, type, &obj));
+ CHECK(isc_symtab_create(pctx->mctx, 5, /* XXX */
+ map_symtabitem_destroy,
+ pctx, ISC_FALSE, &symtab));
+ obj->value.map.symtab = symtab;
+ obj->value.map.id = NULL;
+
+ *ret = obj;
+ return (ISC_R_SUCCESS);
+
+ cleanup:
+ if (obj != NULL)
+ isc_mem_put(pctx->mctx, obj, sizeof(*obj));
+ return (result);
+}
+
+static void
+free_map(cfg_parser_t *pctx, cfg_obj_t *obj) {
+ CLEANUP_OBJ(obj->value.map.id);
+ isc_symtab_destroy(&obj->value.map.symtab);
+}
+
+isc_boolean_t
+cfg_obj_istype(const cfg_obj_t *obj, const cfg_type_t *type) {
+ return (ISC_TF(obj->type == type));
+}
+
+/*
+ * Destroy 'obj', a configuration object created in 'pctx'.
+ */
+void
+cfg_obj_destroy(cfg_parser_t *pctx, cfg_obj_t **objp) {
+ cfg_obj_t *obj = *objp;
+ obj->type->rep->free(pctx, obj);
+ isc_mem_put(pctx->mctx, obj, sizeof(cfg_obj_t));
+ *objp = NULL;
+}
+
+static void
+free_noop(cfg_parser_t *pctx, cfg_obj_t *obj) {
+ UNUSED(pctx);
+ UNUSED(obj);
+}
+
+void
+cfg_doc_obj(cfg_printer_t *pctx, const cfg_type_t *type) {
+ type->doc(pctx, type);
+}
+
+void
+cfg_doc_terminal(cfg_printer_t *pctx, const cfg_type_t *type) {
+ cfg_print_chars(pctx, "<", 1);
+ cfg_print_cstr(pctx, type->name);
+ cfg_print_chars(pctx, ">", 1);
+}
+
+void
+cfg_print_grammar(const cfg_type_t *type,
+ void (*f)(void *closure, const char *text, int textlen),
+ void *closure)
+{
+ cfg_printer_t pctx;
+ pctx.f = f;
+ pctx.closure = closure;
+ pctx.indent = 0;
+ cfg_doc_obj(&pctx, type);
+}
--
cgit v1.1