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(*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 if(cfg_parser->chroot && strncmp(filename, cfg_parser->chroot, 132 strlen(cfg_parser->chroot)) == 0) { 133 filename += strlen(cfg_parser->chroot); 134 } 135 r = glob(filename, flags, NULL, &g); 136 if(r) { 137 /* some error */ 138 globfree(&g); 139 if(r == GLOB_NOMATCH) 140 return; /* no matches for pattern */ 141 config_start_include(filename); /* let original deal with it */ 142 return; 143 } 144 /* process files found, if any */ 145 for(i=0; i<(size_t)g.gl_pathc; i++) { 146 config_start_include(g.gl_pathv[i]); 147 } 148 globfree(&g); 149 return; 150 } 151 #endif /* HAVE_GLOB */ 152 153 config_start_include(filename); 154 } 155 156 static void config_end_include(void) 157 { 158 struct inc_state* s = config_include_stack; 159 --inc_depth; 160 if(!s) return; 161 free(cfg_parser->filename); 162 cfg_parser->filename = s->filename; 163 cfg_parser->line = s->line; 164 yy_delete_buffer(YY_CURRENT_BUFFER); 165 yy_switch_to_buffer(s->buffer); 166 config_include_stack = s->next; 167 free(s); 168 } 169 170 #ifndef yy_set_bol /* compat definition, for flex 2.4.6 */ 171 #define yy_set_bol(at_bol) \ 172 { \ 173 if ( ! yy_current_buffer ) \ 174 yy_current_buffer = yy_create_buffer( ub_c_in, YY_BUF_SIZE ); \ 175 yy_current_buffer->yy_ch_buf[0] = ((at_bol)?'\n':' '); \ 176 } 177 #endif 178 179 %} 180 %option noinput 181 %option nounput 182 %{ 183 #ifndef YY_NO_UNPUT 184 #define YY_NO_UNPUT 1 185 #endif 186 #ifndef YY_NO_INPUT 187 #define YY_NO_INPUT 1 188 #endif 189 %} 190 191 SPACE [ \t] 192 LETTER [a-zA-Z] 193 UNQUOTEDLETTER [^\'\"\n\r \t\\]|\\. 194 UNQUOTEDLETTER_NOCOLON [^\:\'\"\n\r \t\\]|\\. 195 NEWLINE [\r\n] 196 COMMENT \# 197 COLON \: 198 DQANY [^\"\n\r\\]|\\. 199 SQANY [^\'\n\r\\]|\\. 200 201 %x quotedstring singlequotedstr include include_quoted val 202 203 %% 204 <INITIAL,val>{SPACE}* { 205 LEXOUT(("SP ")); /* ignore */ } 206 <INITIAL,val>{SPACE}*{COMMENT}.* { 207 /* note that flex makes the longest match and '.' is any but not nl */ 208 LEXOUT(("comment(%s) ", ub_c_text)); /* ignore */ } 209 server{COLON} { YDVAR(0, VAR_SERVER) } 210 qname-minimisation{COLON} { YDVAR(1, VAR_QNAME_MINIMISATION) } 211 num-threads{COLON} { YDVAR(1, VAR_NUM_THREADS) } 212 verbosity{COLON} { YDVAR(1, VAR_VERBOSITY) } 213 port{COLON} { YDVAR(1, VAR_PORT) } 214 outgoing-range{COLON} { YDVAR(1, VAR_OUTGOING_RANGE) } 215 outgoing-port-permit{COLON} { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) } 216 outgoing-port-avoid{COLON} { YDVAR(1, VAR_OUTGOING_PORT_AVOID) } 217 outgoing-num-tcp{COLON} { YDVAR(1, VAR_OUTGOING_NUM_TCP) } 218 incoming-num-tcp{COLON} { YDVAR(1, VAR_INCOMING_NUM_TCP) } 219 do-ip4{COLON} { YDVAR(1, VAR_DO_IP4) } 220 do-ip6{COLON} { YDVAR(1, VAR_DO_IP6) } 221 do-udp{COLON} { YDVAR(1, VAR_DO_UDP) } 222 do-tcp{COLON} { YDVAR(1, VAR_DO_TCP) } 223 tcp-upstream{COLON} { YDVAR(1, VAR_TCP_UPSTREAM) } 224 tcp-mss{COLON} { YDVAR(1, VAR_TCP_MSS) } 225 outgoing-tcp-mss{COLON} { YDVAR(1, VAR_OUTGOING_TCP_MSS) } 226 ssl-upstream{COLON} { YDVAR(1, VAR_SSL_UPSTREAM) } 227 ssl-service-key{COLON} { YDVAR(1, VAR_SSL_SERVICE_KEY) } 228 ssl-service-pem{COLON} { YDVAR(1, VAR_SSL_SERVICE_PEM) } 229 ssl-port{COLON} { YDVAR(1, VAR_SSL_PORT) } 230 do-daemonize{COLON} { YDVAR(1, VAR_DO_DAEMONIZE) } 231 interface{COLON} { YDVAR(1, VAR_INTERFACE) } 232 ip-address{COLON} { YDVAR(1, VAR_INTERFACE) } 233 outgoing-interface{COLON} { YDVAR(1, VAR_OUTGOING_INTERFACE) } 234 interface-automatic{COLON} { YDVAR(1, VAR_INTERFACE_AUTOMATIC) } 235 so-rcvbuf{COLON} { YDVAR(1, VAR_SO_RCVBUF) } 236 so-sndbuf{COLON} { YDVAR(1, VAR_SO_SNDBUF) } 237 so-reuseport{COLON} { YDVAR(1, VAR_SO_REUSEPORT) } 238 ip-transparent{COLON} { YDVAR(1, VAR_IP_TRANSPARENT) } 239 chroot{COLON} { YDVAR(1, VAR_CHROOT) } 240 username{COLON} { YDVAR(1, VAR_USERNAME) } 241 directory{COLON} { YDVAR(1, VAR_DIRECTORY) } 242 logfile{COLON} { YDVAR(1, VAR_LOGFILE) } 243 pidfile{COLON} { YDVAR(1, VAR_PIDFILE) } 244 root-hints{COLON} { YDVAR(1, VAR_ROOT_HINTS) } 245 edns-buffer-size{COLON} { YDVAR(1, VAR_EDNS_BUFFER_SIZE) } 246 msg-buffer-size{COLON} { YDVAR(1, VAR_MSG_BUFFER_SIZE) } 247 msg-cache-size{COLON} { YDVAR(1, VAR_MSG_CACHE_SIZE) } 248 msg-cache-slabs{COLON} { YDVAR(1, VAR_MSG_CACHE_SLABS) } 249 rrset-cache-size{COLON} { YDVAR(1, VAR_RRSET_CACHE_SIZE) } 250 rrset-cache-slabs{COLON} { YDVAR(1, VAR_RRSET_CACHE_SLABS) } 251 cache-max-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_TTL) } 252 cache-max-negative-ttl{COLON} { YDVAR(1, VAR_CACHE_MAX_NEGATIVE_TTL) } 253 cache-min-ttl{COLON} { YDVAR(1, VAR_CACHE_MIN_TTL) } 254 infra-host-ttl{COLON} { YDVAR(1, VAR_INFRA_HOST_TTL) } 255 infra-lame-ttl{COLON} { YDVAR(1, VAR_INFRA_LAME_TTL) } 256 infra-cache-slabs{COLON} { YDVAR(1, VAR_INFRA_CACHE_SLABS) } 257 infra-cache-numhosts{COLON} { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) } 258 infra-cache-lame-size{COLON} { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) } 259 infra-cache-min-rtt{COLON} { YDVAR(1, VAR_INFRA_CACHE_MIN_RTT) } 260 num-queries-per-thread{COLON} { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) } 261 jostle-timeout{COLON} { YDVAR(1, VAR_JOSTLE_TIMEOUT) } 262 delay-close{COLON} { YDVAR(1, VAR_DELAY_CLOSE) } 263 target-fetch-policy{COLON} { YDVAR(1, VAR_TARGET_FETCH_POLICY) } 264 harden-short-bufsize{COLON} { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) } 265 harden-large-queries{COLON} { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) } 266 harden-glue{COLON} { YDVAR(1, VAR_HARDEN_GLUE) } 267 harden-dnssec-stripped{COLON} { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) } 268 harden-below-nxdomain{COLON} { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) } 269 harden-referral-path{COLON} { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) } 270 harden-algo-downgrade{COLON} { YDVAR(1, VAR_HARDEN_ALGO_DOWNGRADE) } 271 use-caps-for-id{COLON} { YDVAR(1, VAR_USE_CAPS_FOR_ID) } 272 caps-whitelist{COLON} { YDVAR(1, VAR_CAPS_WHITELIST) } 273 unwanted-reply-threshold{COLON} { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) } 274 private-address{COLON} { YDVAR(1, VAR_PRIVATE_ADDRESS) } 275 private-domain{COLON} { YDVAR(1, VAR_PRIVATE_DOMAIN) } 276 prefetch-key{COLON} { YDVAR(1, VAR_PREFETCH_KEY) } 277 prefetch{COLON} { YDVAR(1, VAR_PREFETCH) } 278 stub-zone{COLON} { YDVAR(0, VAR_STUB_ZONE) } 279 name{COLON} { YDVAR(1, VAR_NAME) } 280 stub-addr{COLON} { YDVAR(1, VAR_STUB_ADDR) } 281 stub-host{COLON} { YDVAR(1, VAR_STUB_HOST) } 282 stub-prime{COLON} { YDVAR(1, VAR_STUB_PRIME) } 283 stub-first{COLON} { YDVAR(1, VAR_STUB_FIRST) } 284 forward-zone{COLON} { YDVAR(0, VAR_FORWARD_ZONE) } 285 forward-addr{COLON} { YDVAR(1, VAR_FORWARD_ADDR) } 286 forward-host{COLON} { YDVAR(1, VAR_FORWARD_HOST) } 287 forward-first{COLON} { YDVAR(1, VAR_FORWARD_FIRST) } 288 do-not-query-address{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) } 289 do-not-query-localhost{COLON} { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) } 290 access-control{COLON} { YDVAR(2, VAR_ACCESS_CONTROL) } 291 hide-identity{COLON} { YDVAR(1, VAR_HIDE_IDENTITY) } 292 hide-version{COLON} { YDVAR(1, VAR_HIDE_VERSION) } 293 identity{COLON} { YDVAR(1, VAR_IDENTITY) } 294 version{COLON} { YDVAR(1, VAR_VERSION) } 295 module-config{COLON} { YDVAR(1, VAR_MODULE_CONF) } 296 dlv-anchor{COLON} { YDVAR(1, VAR_DLV_ANCHOR) } 297 dlv-anchor-file{COLON} { YDVAR(1, VAR_DLV_ANCHOR_FILE) } 298 trust-anchor-file{COLON} { YDVAR(1, VAR_TRUST_ANCHOR_FILE) } 299 auto-trust-anchor-file{COLON} { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) } 300 trusted-keys-file{COLON} { YDVAR(1, VAR_TRUSTED_KEYS_FILE) } 301 trust-anchor{COLON} { YDVAR(1, VAR_TRUST_ANCHOR) } 302 val-override-date{COLON} { YDVAR(1, VAR_VAL_OVERRIDE_DATE) } 303 val-sig-skew-min{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) } 304 val-sig-skew-max{COLON} { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) } 305 val-bogus-ttl{COLON} { YDVAR(1, VAR_BOGUS_TTL) } 306 val-clean-additional{COLON} { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) } 307 val-permissive-mode{COLON} { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) } 308 ignore-cd-flag{COLON} { YDVAR(1, VAR_IGNORE_CD_FLAG) } 309 val-log-level{COLON} { YDVAR(1, VAR_VAL_LOG_LEVEL) } 310 key-cache-size{COLON} { YDVAR(1, VAR_KEY_CACHE_SIZE) } 311 key-cache-slabs{COLON} { YDVAR(1, VAR_KEY_CACHE_SLABS) } 312 neg-cache-size{COLON} { YDVAR(1, VAR_NEG_CACHE_SIZE) } 313 val-nsec3-keysize-iterations{COLON} { 314 YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) } 315 add-holddown{COLON} { YDVAR(1, VAR_ADD_HOLDDOWN) } 316 del-holddown{COLON} { YDVAR(1, VAR_DEL_HOLDDOWN) } 317 keep-missing{COLON} { YDVAR(1, VAR_KEEP_MISSING) } 318 permit-small-holddown{COLON} { YDVAR(1, VAR_PERMIT_SMALL_HOLDDOWN) } 319 use-syslog{COLON} { YDVAR(1, VAR_USE_SYSLOG) } 320 log-time-ascii{COLON} { YDVAR(1, VAR_LOG_TIME_ASCII) } 321 log-queries{COLON} { YDVAR(1, VAR_LOG_QUERIES) } 322 local-zone{COLON} { YDVAR(2, VAR_LOCAL_ZONE) } 323 local-data{COLON} { YDVAR(1, VAR_LOCAL_DATA) } 324 local-data-ptr{COLON} { YDVAR(1, VAR_LOCAL_DATA_PTR) } 325 unblock-lan-zones{COLON} { YDVAR(1, VAR_UNBLOCK_LAN_ZONES) } 326 insecure-lan-zones{COLON} { YDVAR(1, VAR_INSECURE_LAN_ZONES) } 327 statistics-interval{COLON} { YDVAR(1, VAR_STATISTICS_INTERVAL) } 328 statistics-cumulative{COLON} { YDVAR(1, VAR_STATISTICS_CUMULATIVE) } 329 extended-statistics{COLON} { YDVAR(1, VAR_EXTENDED_STATISTICS) } 330 remote-control{COLON} { YDVAR(0, VAR_REMOTE_CONTROL) } 331 control-enable{COLON} { YDVAR(1, VAR_CONTROL_ENABLE) } 332 control-interface{COLON} { YDVAR(1, VAR_CONTROL_INTERFACE) } 333 control-port{COLON} { YDVAR(1, VAR_CONTROL_PORT) } 334 control-use-cert{COLON} { YDVAR(1, VAR_CONTROL_USE_CERT) } 335 server-key-file{COLON} { YDVAR(1, VAR_SERVER_KEY_FILE) } 336 server-cert-file{COLON} { YDVAR(1, VAR_SERVER_CERT_FILE) } 337 control-key-file{COLON} { YDVAR(1, VAR_CONTROL_KEY_FILE) } 338 control-cert-file{COLON} { YDVAR(1, VAR_CONTROL_CERT_FILE) } 339 python-script{COLON} { YDVAR(1, VAR_PYTHON_SCRIPT) } 340 python{COLON} { YDVAR(0, VAR_PYTHON) } 341 domain-insecure{COLON} { YDVAR(1, VAR_DOMAIN_INSECURE) } 342 minimal-responses{COLON} { YDVAR(1, VAR_MINIMAL_RESPONSES) } 343 rrset-roundrobin{COLON} { YDVAR(1, VAR_RRSET_ROUNDROBIN) } 344 max-udp-size{COLON} { YDVAR(1, VAR_MAX_UDP_SIZE) } 345 dns64-prefix{COLON} { YDVAR(1, VAR_DNS64_PREFIX) } 346 dns64-synthall{COLON} { YDVAR(1, VAR_DNS64_SYNTHALL) } 347 dnstap{COLON} { YDVAR(0, VAR_DNSTAP) } 348 dnstap-enable{COLON} { YDVAR(1, VAR_DNSTAP_ENABLE) } 349 dnstap-socket-path{COLON} { YDVAR(1, VAR_DNSTAP_SOCKET_PATH) } 350 dnstap-send-identity{COLON} { YDVAR(1, VAR_DNSTAP_SEND_IDENTITY) } 351 dnstap-send-version{COLON} { YDVAR(1, VAR_DNSTAP_SEND_VERSION) } 352 dnstap-identity{COLON} { YDVAR(1, VAR_DNSTAP_IDENTITY) } 353 dnstap-version{COLON} { YDVAR(1, VAR_DNSTAP_VERSION) } 354 dnstap-log-resolver-query-messages{COLON} { 355 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_QUERY_MESSAGES) } 356 dnstap-log-resolver-response-messages{COLON} { 357 YDVAR(1, VAR_DNSTAP_LOG_RESOLVER_RESPONSE_MESSAGES) } 358 dnstap-log-client-query-messages{COLON} { 359 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_QUERY_MESSAGES) } 360 dnstap-log-client-response-messages{COLON} { 361 YDVAR(1, VAR_DNSTAP_LOG_CLIENT_RESPONSE_MESSAGES) } 362 dnstap-log-forwarder-query-messages{COLON} { 363 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_QUERY_MESSAGES) } 364 dnstap-log-forwarder-response-messages{COLON} { 365 YDVAR(1, VAR_DNSTAP_LOG_FORWARDER_RESPONSE_MESSAGES) } 366 ratelimit{COLON} { YDVAR(1, VAR_RATELIMIT) } 367 ratelimit-slabs{COLON} { YDVAR(1, VAR_RATELIMIT_SLABS) } 368 ratelimit-size{COLON} { YDVAR(1, VAR_RATELIMIT_SIZE) } 369 ratelimit-for-domain{COLON} { YDVAR(2, VAR_RATELIMIT_FOR_DOMAIN) } 370 ratelimit-below-domain{COLON} { YDVAR(2, VAR_RATELIMIT_BELOW_DOMAIN) } 371 ratelimit-factor{COLON} { YDVAR(1, VAR_RATELIMIT_FACTOR) } 372 <INITIAL,val>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++; } 373 374 /* Quoted strings. Strip leading and ending quotes */ 375 <val>\" { BEGIN(quotedstring); LEXOUT(("QS ")); } 376 <quotedstring><<EOF>> { 377 ub_c_error("EOF inside quoted string"); 378 if(--num_args == 0) { BEGIN(INITIAL); } 379 else { BEGIN(val); } 380 } 381 <quotedstring>{DQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 382 <quotedstring>{NEWLINE} { ub_c_error("newline inside quoted string, no end \""); 383 cfg_parser->line++; BEGIN(INITIAL); } 384 <quotedstring>\" { 385 LEXOUT(("QE ")); 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 /* Single Quoted strings. Strip leading and ending quotes */ 396 <val>\' { BEGIN(singlequotedstr); LEXOUT(("SQS ")); } 397 <singlequotedstr><<EOF>> { 398 ub_c_error("EOF inside quoted string"); 399 if(--num_args == 0) { BEGIN(INITIAL); } 400 else { BEGIN(val); } 401 } 402 <singlequotedstr>{SQANY}* { LEXOUT(("STR(%s) ", ub_c_text)); yymore(); } 403 <singlequotedstr>{NEWLINE} { ub_c_error("newline inside quoted string, no end '"); 404 cfg_parser->line++; BEGIN(INITIAL); } 405 <singlequotedstr>\' { 406 LEXOUT(("SQE ")); 407 if(--num_args == 0) { BEGIN(INITIAL); } 408 else { BEGIN(val); } 409 ub_c_text[ub_c_leng - 1] = '\0'; 410 ub_c_lval.str = strdup(ub_c_text); 411 if(!ub_c_lval.str) 412 ub_c_error("out of memory"); 413 return STRING_ARG; 414 } 415 416 /* include: directive */ 417 <INITIAL,val>include{COLON} { 418 LEXOUT(("v(%s) ", ub_c_text)); inc_prev = YYSTATE; BEGIN(include); } 419 <include><<EOF>> { 420 ub_c_error("EOF inside include directive"); 421 BEGIN(inc_prev); 422 } 423 <include>{SPACE}* { LEXOUT(("ISP ")); /* ignore */ } 424 <include>{NEWLINE} { LEXOUT(("NL\n")); cfg_parser->line++;} 425 <include>\" { LEXOUT(("IQS ")); BEGIN(include_quoted); } 426 <include>{UNQUOTEDLETTER}* { 427 LEXOUT(("Iunquotedstr(%s) ", ub_c_text)); 428 config_start_include_glob(ub_c_text); 429 BEGIN(inc_prev); 430 } 431 <include_quoted><<EOF>> { 432 ub_c_error("EOF inside quoted string"); 433 BEGIN(inc_prev); 434 } 435 <include_quoted>{DQANY}* { LEXOUT(("ISTR(%s) ", ub_c_text)); yymore(); } 436 <include_quoted>{NEWLINE} { ub_c_error("newline before \" in include name"); 437 cfg_parser->line++; BEGIN(inc_prev); } 438 <include_quoted>\" { 439 LEXOUT(("IQE ")); 440 ub_c_text[ub_c_leng - 1] = '\0'; 441 config_start_include_glob(ub_c_text); 442 BEGIN(inc_prev); 443 } 444 <INITIAL,val><<EOF>> { 445 LEXOUT(("LEXEOF ")); 446 yy_set_bol(1); /* Set beginning of line, so "^" rules match. */ 447 if (!config_include_stack) { 448 yyterminate(); 449 } else { 450 fclose(ub_c_in); 451 config_end_include(); 452 } 453 } 454 455 <val>{UNQUOTEDLETTER}* { LEXOUT(("unquotedstr(%s) ", ub_c_text)); 456 if(--num_args == 0) { BEGIN(INITIAL); } 457 ub_c_lval.str = strdup(ub_c_text); return STRING_ARG; } 458 459 {UNQUOTEDLETTER_NOCOLON}* { 460 ub_c_error_msg("unknown keyword '%s'", ub_c_text); 461 } 462 463 <*>. { 464 ub_c_error_msg("stray '%s'", ub_c_text); 465 } 466 467 %% 468