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" 21 void 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 40 struct inc_state { 41 char* filename; 42 int line; 43 YY_BUFFER_STATE buffer; 44 struct inc_state* next; 45 }; 46 static struct inc_state* config_include_stack = NULL; 47 static int inc_depth = 0; 48 static int inc_prev = 0; 49 static int num_args = 0; 50 51 void init_cfg_parse(void) 52 { 53 config_include_stack = NULL; 54 inc_depth = 0; 55 inc_prev = 0; 56 num_args = 0; 57 } 58 59 static 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 } 105 106 static 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 } 151 152 static 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 %} 186 187 SPACE [ \t] 188 LETTER [a-zA-Z] 189 UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 190 UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 191 NEWLINE [\r\n] 192 COMMENT \# 193 COLON \: 194 DQANY [^\"\n\r\\]|\\. 195 SQANY [^\'\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 */ } 205 server{COLON} { YDVAR(0, VAR_SERVER) } 206 num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 207 verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 208 port{COLON} { YDVAR(1, VAR_PORT) } 209 outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 210 outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 211 outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 212 outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 213 incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 214 do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 215 do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 216 do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 217 do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 218 tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 219 ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 220 ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 221 ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 222 ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 223 do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 224 interface{COLON} { YDVAR(1, VAR_INTERFACE) } 225 ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 226 outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 227 interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 228 so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 229 so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 230 so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 231 chroot{COLON} { YDVAR(1, VAR_CHROOT) } 232 username{COLON} { YDVAR(1, VAR_USERNAME) } 233 directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 234 logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 235 pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 236 root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 237 edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 238 msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 239 msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 240 msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 241 rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 242 rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 243 cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 244 cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 245 infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 246 infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 247 infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 248 infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 249 infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 250 num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 251 jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 252 delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 253 target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 254 harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 255 harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 256 harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 257 harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 258 harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 259 harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 260 use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 261 unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 262 private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 263 private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 264 prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 265 prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 266 stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 267 name{COLON} { YDVAR(1, VAR_NAME) } 268 stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 269 stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 270 stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 271 stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 272 forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 273 forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 274 forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 275 forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 276 do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 277 do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 278 access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 279 hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 280 hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 281 identity{COLON} { YDVAR(1, VAR_IDENTITY) } 282 version{COLON} { YDVAR(1, VAR_VERSION) } 283 module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 284 dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 285 dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 286 trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 287 auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 288 trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 289 trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 290 val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 291 val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 292 val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 293 val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 294 val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 295 val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 296 ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 297 val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 298 key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 299 key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 300 neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 301 val-nsec3-keysize-iterations{COLON} { 302 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 303 add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 304 del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 305 keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 306 use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 307 log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 308 log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 309 local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 310 local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 311 local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 312 unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 313 statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 314 statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 315 extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 316 remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 317 control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 318 control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 319 control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 320 server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 321 server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 322 control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 323 control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 324 python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 325 python{COLON} { YDVAR(0, VAR_PYTHON) } 326 domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 327 minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 328 rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 329 max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 330 dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 331 dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 332 dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 333 dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 334 dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 335 dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 336 dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 337 dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 338 dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 339 dnstap-log-resolver-query-messages{COLON} { 340 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 341 dnstap-log-resolver-response-messages{COLON} { 342 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 343 dnstap-log-client-query-messages{COLON} { 344 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 345 dnstap-log-client-response-messages{COLON} { 346 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 347 dnstap-log-forwarder-query-messages{COLON} { 348 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 349 dnstap-log-forwarder-response-messages{COLON} { 350 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 351 <INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 352 353 /* Quoted strings. Strip leading and ending quotes */ 354 <val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 355 <quotedstring><<EOF>> { 356 ub_c_error("EOF inside quoted string"); 357 if(--num_args == 0) { BEGIN(INITIAL); } 358 else { BEGIN(val); } 359 } 360 <quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 361 <quotedstring>{NEWLINE} { ub_c_error("newline inside quoted string, no end \""); 362 cfg_parser->line++; BEGIN(INITIAL); } 363 <quotedstring>\" { 364 LEXOUT(("QE ")); 365 if(--num_args == 0) { BEGIN(INITIAL); } 366 else { BEGIN(val); } 367 ub_c_text[ub_c_leng - 1] = '\0'; 368 ub_c_lval.str = strdup(ub_c_text); 369 if(!ub_c_lval.str) 370 ub_c_error("out of memory"); 371 return STRING_ARG; 372 } 373 374 /* Single Quoted strings. Strip leading and ending quotes */ 375 <val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 376 <singlequotedstr><<EOF>> { 377 ub_c_error("EOF inside quoted string"); 378 if(--num_args == 0) { BEGIN(INITIAL); } 379 else { BEGIN(val); } 380 } 381 <singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 382 <singlequotedstr>{NEWLINE} { ub_c_error("newline inside quoted string, no end '"); 383 cfg_parser->line++; BEGIN(INITIAL); } 384 <singlequotedstr>\' { 385 LEXOUT(("SQE ")); 386 if(--num_args == 0) { BEGIN(INITIAL); } 387 else { BEGIN(val); } 388 ub_c_text[ub_c_leng - 1] = '\0'; 389 ub_c_lval.str = strdup(ub_c_text); 390 if(!ub_c_lval.str) 391 ub_c_error("out of memory"); 392 return STRING_ARG; 393 } 394 395 /* include: directive */ 396 <INITIAL,val>include{COLON} { 397 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include); } 398 <include><<EOF>> { 399 ub_c_error("EOF inside include directive"); 400 BEGIN(inc_prev); 401 } 402 <include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 403 <include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 404 <include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 405 <include>{UNQUOTEDLETTER}* { 406 LEXOUT(("Iunquotedstr(%s) ", ub_c_text)); 407 config_start_include_glob(ub_c_text); 408 BEGIN(inc_prev); 409 } 410 <include_quoted><<EOF>> { 411 ub_c_error("EOF inside quoted string"); 412 BEGIN(inc_prev); 413 } 414 <include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", ub_c_text)); yymore(); } 415 <include_quoted>{NEWLINE} { ub_c_error("newline before \" in include name"); 416 cfg_parser->line++; BEGIN(inc_prev); } 417 <include_quoted>\" { 418 LEXOUT(("IQE ")); 419 ub_c_text[ub_c_leng - 1] = '\0'; 420 config_start_include_glob(ub_c_text); 421 BEGIN(inc_prev); 422 } 423 <INITIAL,val><<EOF>> { 424 LEXOUT(("LEXEOF ")); 425 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 426 if (!config_include_stack) { 427 yyterminate(); 428 } else { 429 fclose(ub_c_in); 430 config_end_include(); 431 } 432 } 433 434 <val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", ub_c_text)); 435 if(--num_args == 0) { BEGIN(INITIAL); } 436 ub_c_lval.str = strdup(ub_c_text); return STRING_ARG; } 437 438 {UNQUOTEDLETTER_NOCOLON}* { 439 ub_c_error_msg("unknown keyword '%s'", ub_c_text); 440 } 441 442 <*>. { 443 ub_c_error_msg("stray '%s'", ub_c_text); 444 } 445 446 %% 447