configlexer.lex revision 285206
1%{ 2/* 3 * configlexer.lex - lexical analyzer for unbound config file 4 * 5 * Copyright (c) 2001-2006, NLnet Labs. All rights reserved 6 * 7 * See LICENSE for the license. 8 * 9 */ 10#include "config.h" 11 12#include <ctype.h> 13#include <string.h> 14#include <strings.h> 15#ifdef HAVE_GLOB_H 16# include <glob.h> 17#endif 18 19#include "util/config_file.h" 20#include "configparser.h" 21void ub_c_error(const char *message); 22 23#if 0 24#define LEXOUT(s) printf s /* used ONLY when debugging */ 25#else 26#define LEXOUT(s) 27#endif 28 29/** avoid warning in about fwrite return value */ 30#define ECHO ub_c_error_msg("syntax error at text: %s", ub_c_text) 31 32/** A parser variable, this is a statement in the config file which is 33 * of the form variable: value1 value2 ... nargs is the number of values. */ 34#define YDVAR(nargs, var) \ 35 num_args=(nargs); \ 36 LEXOUT(("v(%s%d) ", ub_c_text, num_args)); \ 37 if(num_args > 0) { BEGIN(val); } \ 38 return (var); 39 40struct inc_state { 41 char* filename; 42 int line; 43 YY_BUFFER_STATE buffer; 44 struct inc_state* next; 45}; 46static struct inc_state* config_include_stack = NULL; 47static int inc_depth = 0; 48static int inc_prev = 0; 49static int num_args = 0; 50 51void init_cfg_parse(void) 52{ 53 config_include_stack = NULL; 54 inc_depth = 0; 55 inc_prev = 0; 56 num_args = 0; 57} 58 59static void config_start_include(const char* filename) 60{ 61 FILE *input; 62 struct inc_state* s; 63 char* nm; 64 if(inc_depth++ > 100000) { 65 ub_c_error_msg("too many include files"); 66 return; 67 } 68 if(strlen(filename) == 0) { 69 ub_c_error_msg("empty include file name"); 70 return; 71 } 72 s = (struct inc_state*)malloc(sizeof(*s)); 73 if(!s) { 74 ub_c_error_msg("include %s: malloc failure", filename); 75 return; 76 } 77 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 78 strlen(cfg_parser->chroot)) == 0) { 79 filename += strlen(cfg_parser->chroot); 80 } 81 nm = strdup(filename); 82 if(!nm) { 83 ub_c_error_msg("include %s: strdup failure", filename); 84 free(s); 85 return; 86 } 87 input = fopen(filename, "r"); 88 if(!input) { 89 ub_c_error_msg("cannot open include file '%s': %s", 90 filename, strerror(errno)); 91 free(s); 92 free(nm); 93 return; 94 } 95 LEXOUT(("switch_to_include_file(%s)\n", filename)); 96 s->filename = cfg_parser->filename; 97 s->line = cfg_parser->line; 98 s->buffer = YY_CURRENT_BUFFER; 99 s->next = config_include_stack; 100 config_include_stack = s; 101 cfg_parser->filename = nm; 102 cfg_parser->line = 1; 103 yy_switch_to_buffer(yy_create_buffer(input, YY_BUF_SIZE)); 104} 105 106static void config_start_include_glob(const char* filename) 107{ 108 109 /* check for wildcards */ 110#ifdef HAVE_GLOB 111 glob_t g; 112 size_t i; 113 int r, flags; 114 if(!(!strchr(filename, '*') && !strchr(filename, '?') && !strchr(filename, '[') && 115 !strchr(filename, '{') && !strchr(filename, '~'))) { 116 flags = 0 117#ifdef GLOB_ERR 118 | GLOB_ERR 119#endif 120#ifdef GLOB_NOSORT 121 | GLOB_NOSORT 122#endif 123#ifdef GLOB_BRACE 124 | GLOB_BRACE 125#endif 126#ifdef GLOB_TILDE 127 | GLOB_TILDE 128#endif 129 ; 130 memset(&g, 0, sizeof(g)); 131 r = glob(filename, flags, NULL, &g); 132 if(r) { 133 /* some error */ 134 globfree(&g); 135 if(r == GLOB_NOMATCH) 136 return; /* no matches for pattern */ 137 config_start_include(filename); /* let original deal with it */ 138 return; 139 } 140 /* process files found, if any */ 141 for(i=0; i<(size_t)g.gl_pathc; i++) { 142 config_start_include(g.gl_pathv[i]); 143 } 144 globfree(&g); 145 return; 146 } 147#endif /* HAVE_GLOB */ 148 149 config_start_include(filename); 150} 151 152static void config_end_include(void) 153{ 154 struct inc_state* s = config_include_stack; 155 --inc_depth; 156 if(!s) return; 157 free(cfg_parser->filename); 158 cfg_parser->filename = s->filename; 159 cfg_parser->line = s->line; 160 yy_delete_buffer(YY_CURRENT_BUFFER); 161 yy_switch_to_buffer(s->buffer); 162 config_include_stack = s->next; 163 free(s); 164} 165 166#ifndef yy_set_bol /* compat definition, for flex 2.4.6 */ 167#define yy_set_bol(at_bol) \ 168 { \ 169 if ( ! yy_current_buffer ) \ 170 yy_current_buffer = yy_create_buffer( ub_c_in, YY_BUF_SIZE ); \ 171 yy_current_buffer->yy_ch_buf[0] = ((at_bol)?'\n':' '); \ 172 } 173#endif 174 175%} 176%option noinput 177%option nounput 178%{ 179#ifndef YY_NO_UNPUT 180#define YY_NO_UNPUT 1 181#endif 182#ifndef YY_NO_INPUT 183#define YY_NO_INPUT 1 184#endif 185%} 186 187SPACE [ \t] 188LETTER [a-zA-Z] 189UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 190UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 191NEWLINE [\r\n] 192COMMENT \# 193COLON \: 194DQANY [^\"\n\r\\]|\\. 195SQANY [^\'\n\r\\]|\\. 196 197%x quotedstring singlequotedstr include include_quoted val 198 199%% 200<INITIAL,val>{SPACE}* { 201 LEXOUT(("SP ")); /* ignore */ } 202<INITIAL,val>{SPACE}*{COMMENT}.* { 203 /* note that flex makes the longest match and '.' is any but not nl */ 204 LEXOUT(("comment(%s) ", ub_c_text)); /* ignore */ } 205server{COLON} { YDVAR(0, VAR_SERVER) } 206num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 207verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 208port{COLON} { YDVAR(1, VAR_PORT) } 209outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 210outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 211outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 212outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 213incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 214do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 215do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 216do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 217do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 218tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 219ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 220ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 221ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 222ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 223do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 224interface{COLON} { YDVAR(1, VAR_INTERFACE) } 225ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 226outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 227interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 228so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 229so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 230so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 231chroot{COLON} { YDVAR(1, VAR_CHROOT) } 232username{COLON} { YDVAR(1, VAR_USERNAME) } 233directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 234logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 235pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 236root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 237edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 238msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 239msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 240msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 241rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 242rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 243cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 244cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 245infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 246infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 247infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 248infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 249infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 250infra-cache-min-rtt{COLON} { YDVAR(1, VAR_INFRA_CACHE_MIN_RTT) } 251num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 252jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 253delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 254target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 255harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 256harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 257harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 258harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 259harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 260harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 261use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 262unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 263private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 264private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 265prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 266prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 267stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 268name{COLON} { YDVAR(1, VAR_NAME) } 269stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 270stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 271stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 272stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 273forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 274forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 275forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 276forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 277do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 278do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 279access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 280hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 281hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 282identity{COLON} { YDVAR(1, VAR_IDENTITY) } 283version{COLON} { YDVAR(1, VAR_VERSION) } 284module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 285dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 286dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 287trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 288auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 289trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 290trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 291val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 292val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 293val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 294val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 295val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 296val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 297ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 298val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 299key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 300key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 301neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 302val-nsec3-keysize-iterations{COLON} { 303 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 304add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 305del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 306keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 307use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 308log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 309log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 310local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 311local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 312local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 313unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 314statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 315statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 316extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 317remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 318control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 319control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 320control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 321control-use-cert{COLON} { YDVAR(1, VAR_CONTROL_USE_CERT) } 322server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 323server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 324control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 325control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 326python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 327python{COLON} { YDVAR(0, VAR_PYTHON) } 328domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 329minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 330rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 331max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 332dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 333dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 334dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 335dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 336dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 337dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 338dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 339dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 340dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 341dnstap-log-resolver-query-messages{COLON} { 342 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 343dnstap-log-resolver-response-messages{COLON} { 344 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 345dnstap-log-client-query-messages{COLON} { 346 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 347dnstap-log-client-response-messages{COLON} { 348 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 349dnstap-log-forwarder-query-messages{COLON} { 350 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 351dnstap-log-forwarder-response-messages{COLON} { 352 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 353<INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 354 355 /* Quoted strings. Strip leading and ending quotes */ 356<val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 357<quotedstring><<EOF>> { 358 ub_c_error("EOF inside quoted string"); 359 if(--num_args == 0) { BEGIN(INITIAL); } 360 else { BEGIN(val); } 361} 362<quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 363<quotedstring>{NEWLINE} { ub_c_error("newline inside quoted string, no end \""); 364 cfg_parser->line++; BEGIN(INITIAL); } 365<quotedstring>\" { 366 LEXOUT(("QE ")); 367 if(--num_args == 0) { BEGIN(INITIAL); } 368 else { BEGIN(val); } 369 ub_c_text[ub_c_leng - 1] = '\0'; 370 ub_c_lval.str = strdup(ub_c_text); 371 if(!ub_c_lval.str) 372 ub_c_error("out of memory"); 373 return STRING_ARG; 374} 375 376 /* Single Quoted strings. Strip leading and ending quotes */ 377<val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 378<singlequotedstr><<EOF>> { 379 ub_c_error("EOF inside quoted string"); 380 if(--num_args == 0) { BEGIN(INITIAL); } 381 else { BEGIN(val); } 382} 383<singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 384<singlequotedstr>{NEWLINE} { ub_c_error("newline inside quoted string, no end '"); 385 cfg_parser->line++; BEGIN(INITIAL); } 386<singlequotedstr>\' { 387 LEXOUT(("SQE ")); 388 if(--num_args == 0) { BEGIN(INITIAL); } 389 else { BEGIN(val); } 390 ub_c_text[ub_c_leng - 1] = '\0'; 391 ub_c_lval.str = strdup(ub_c_text); 392 if(!ub_c_lval.str) 393 ub_c_error("out of memory"); 394 return STRING_ARG; 395} 396 397 /* include: directive */ 398<INITIAL,val>include{COLON} { 399 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include); } 400<include><<EOF>> { 401 ub_c_error("EOF inside include directive"); 402 BEGIN(inc_prev); 403} 404<include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 405<include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 406<include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 407<include>{UNQUOTEDLETTER}* { 408 LEXOUT(("Iunquotedstr(%s) ", ub_c_text)); 409 config_start_include_glob(ub_c_text); 410 BEGIN(inc_prev); 411} 412<include_quoted><<EOF>> { 413 ub_c_error("EOF inside quoted string"); 414 BEGIN(inc_prev); 415} 416<include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", ub_c_text)); yymore(); } 417<include_quoted>{NEWLINE} { ub_c_error("newline before \" in include name"); 418 cfg_parser->line++; BEGIN(inc_prev); } 419<include_quoted>\" { 420 LEXOUT(("IQE ")); 421 ub_c_text[ub_c_leng - 1] = '\0'; 422 config_start_include_glob(ub_c_text); 423 BEGIN(inc_prev); 424} 425<INITIAL,val><<EOF>> { 426 LEXOUT(("LEXEOF ")); 427 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 428 if (!config_include_stack) { 429 yyterminate(); 430 } else { 431 fclose(ub_c_in); 432 config_end_include(); 433 } 434} 435 436<val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", ub_c_text)); 437 if(--num_args == 0) { BEGIN(INITIAL); } 438 ub_c_lval.str = strdup(ub_c_text); return STRING_ARG; } 439 440{UNQUOTEDLETTER_NOCOLON}* { 441 ub_c_error_msg("unknown keyword '%s'", ub_c_text); 442 } 443 444<*>. { 445 ub_c_error_msg("stray '%s'", ub_c_text); 446 } 447 448%% 449