- max include of 100.000 files (depth and globbed at one time).

  This is to preserve system memory in bug cases, or endless cases.

git-svn-id: file:///svn/unbound/trunk@2928 be551aaa-1e26-0410-a405-d3ace91eadb9

diff --git a/doc/Changelog b/doc/Changelog
index c7d52f9f76ffd320783bff1f954563748bf519bf..e014e21c2b636cd4cfe3b3f569dcd51218343ecd 100644 (file)
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,7 @@
+26 Jun 2013: Wouter
+       - max include of 100.000 files (depth and globbed at one time).
+         This is to preserve system memory in bug cases, or endless cases.
+
 19 Jun 2013: Wouter
        - streamtcp man page, contributed by Tomas Hozza.
        - iana portlist updated.

diff --git a/util/config_file.c b/util/config_file.c
index 4f08fa02da8e8d5a5e74c32d927af6316e0cc9f4..bd899c8261685d04a59bbe22d79f7e5e00cb68e3 100644 (file)
--- a/util/config_file.c
+++ b/util/config_file.c
@@ -69,6 +69,8 @@ int ub_c_parse(void);
 int ub_c_lex(void);
 /** wrap function */
 int ub_c_wrap(void);
+/** init lex state */
+void init_cfg_parse(void);
 
 /** init ports possible for use */
 static void init_outgoing_availports(int* array, int num);
@@ -703,6 +705,7 @@ create_cfg_parser(struct config_file* cfg, char* filename, const char* chroot)
        cfg_parser->errors = 0;
        cfg_parser->cfg = cfg;
        cfg_parser->chroot = chroot;
+       init_cfg_parse();
 }
 
 int 

diff --git a/util/configlexer.c b/util/configlexer.c
index c9c2e1b477b08f120123280cafc72207f840c0bb..6aa4cad32f3b52d08badfb507ab8e57280090e10 100644 (file)
--- a/util/configlexer.c
+++ b/util/configlexer.c
@@ -1547,14 +1547,27 @@ struct inc_state {
        struct inc_state* next;
 };
 static struct inc_state* config_include_stack = NULL;
+static int inc_depth = 0;
 static int inc_prev = 0;
 static int num_args = 0;
 
+void init_cfg_parse(void)
+{
+       config_include_stack = NULL;
+       inc_depth = 0;
+       inc_prev = 0;
+       num_args = 0;
+}
+
 static void config_start_include(const char* filename)
 {
        FILE *input;
        struct inc_state* s;
        char* nm;
+       if(inc_depth++ > 100000) {
+               ub_c_error_msg("too many include files");
+               return;
+       }
        if(strlen(filename) == 0) {
                ub_c_error_msg("empty include file name");
                return;
@@ -1642,6 +1655,7 @@ static void config_start_include_glob(const char* filename)
 static void config_end_include(void)
 {
        struct inc_state* s = config_include_stack;
+       --inc_depth;
        if(!s) return;
        free(cfg_parser->filename);
        cfg_parser->filename = s->filename;
@@ -1662,7 +1676,7 @@ static void config_end_include(void)
 #endif
 
 #define YY_NO_INPUT 1
-#line 164 "./util/configlexer.lex"
+#line 178 "./util/configlexer.lex"
 #ifndef YY_NO_UNPUT
 #define YY_NO_UNPUT 1
 #endif
@@ -1670,7 +1684,7 @@ static void config_end_include(void)
 #define YY_NO_INPUT 1
 #endif
 
-#line 1672 "<stdout>"
+#line 1686 "<stdout>"
 
 #define INITIAL 0
 #define quotedstring 1
@@ -1855,9 +1869,9 @@ YY_DECL
        register char *yy_cp, *yy_bp;
        register int yy_act;
     
-#line 184 "./util/configlexer.lex"
+#line 198 "./util/configlexer.lex"
 
-#line 1859 "<stdout>"
+#line 1873 "<stdout>"
 
        if ( !(yy_init) )
                {
@@ -1948,632 +1962,632 @@ do_action:    /* This label is used only to access EOF actions. */
 
 case 1:
 YY_RULE_SETUP
-#line 185 "./util/configlexer.lex"
+#line 199 "./util/configlexer.lex"
 { 
        LEXOUT(("SP ")); /* ignore */ }
        YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 187 "./util/configlexer.lex"
+#line 201 "./util/configlexer.lex"
 { 
        /* note that flex makes the longest match and '.' is any but not nl */
        LEXOUT(("comment(%s) ", yytext)); /* ignore */ }
        YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 190 "./util/configlexer.lex"
+#line 204 "./util/configlexer.lex"
 { YDVAR(0, VAR_SERVER) }
        YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 191 "./util/configlexer.lex"
+#line 205 "./util/configlexer.lex"
 { YDVAR(1, VAR_NUM_THREADS) }
        YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 192 "./util/configlexer.lex"
+#line 206 "./util/configlexer.lex"
 { YDVAR(1, VAR_VERBOSITY) }
        YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 193 "./util/configlexer.lex"
+#line 207 "./util/configlexer.lex"
 { YDVAR(1, VAR_PORT) }
        YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 194 "./util/configlexer.lex"
+#line 208 "./util/configlexer.lex"
 { YDVAR(1, VAR_OUTGOING_RANGE) }
        YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 195 "./util/configlexer.lex"
+#line 209 "./util/configlexer.lex"
 { YDVAR(1, VAR_OUTGOING_PORT_PERMIT) }
        YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 196 "./util/configlexer.lex"
+#line 210 "./util/configlexer.lex"
 { YDVAR(1, VAR_OUTGOING_PORT_AVOID) }
        YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 197 "./util/configlexer.lex"
+#line 211 "./util/configlexer.lex"
 { YDVAR(1, VAR_OUTGOING_NUM_TCP) }
        YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 198 "./util/configlexer.lex"
+#line 212 "./util/configlexer.lex"
 { YDVAR(1, VAR_INCOMING_NUM_TCP) }
        YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 199 "./util/configlexer.lex"
+#line 213 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_IP4) }
        YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 200 "./util/configlexer.lex"
+#line 214 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_IP6) }
        YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 201 "./util/configlexer.lex"
+#line 215 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_UDP) }
        YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 202 "./util/configlexer.lex"
+#line 216 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_TCP) }
        YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 203 "./util/configlexer.lex"
+#line 217 "./util/configlexer.lex"
 { YDVAR(1, VAR_TCP_UPSTREAM) }
        YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 204 "./util/configlexer.lex"
+#line 218 "./util/configlexer.lex"
 { YDVAR(1, VAR_SSL_UPSTREAM) }
        YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 205 "./util/configlexer.lex"
+#line 219 "./util/configlexer.lex"
 { YDVAR(1, VAR_SSL_SERVICE_KEY) }
        YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 206 "./util/configlexer.lex"
+#line 220 "./util/configlexer.lex"
 { YDVAR(1, VAR_SSL_SERVICE_PEM) }
        YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 207 "./util/configlexer.lex"
+#line 221 "./util/configlexer.lex"
 { YDVAR(1, VAR_SSL_PORT) }
        YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 208 "./util/configlexer.lex"
+#line 222 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_DAEMONIZE) }
        YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 209 "./util/configlexer.lex"
+#line 223 "./util/configlexer.lex"
 { YDVAR(1, VAR_INTERFACE) }
        YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 210 "./util/configlexer.lex"
+#line 224 "./util/configlexer.lex"
 { YDVAR(1, VAR_OUTGOING_INTERFACE) }
        YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 211 "./util/configlexer.lex"
+#line 225 "./util/configlexer.lex"
 { YDVAR(1, VAR_INTERFACE_AUTOMATIC) }
        YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 212 "./util/configlexer.lex"
+#line 226 "./util/configlexer.lex"
 { YDVAR(1, VAR_SO_RCVBUF) }
        YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 213 "./util/configlexer.lex"
+#line 227 "./util/configlexer.lex"
 { YDVAR(1, VAR_SO_SNDBUF) }
        YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 214 "./util/configlexer.lex"
+#line 228 "./util/configlexer.lex"
 { YDVAR(1, VAR_CHROOT) }
        YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 215 "./util/configlexer.lex"
+#line 229 "./util/configlexer.lex"
 { YDVAR(1, VAR_USERNAME) }
        YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 216 "./util/configlexer.lex"
+#line 230 "./util/configlexer.lex"
 { YDVAR(1, VAR_DIRECTORY) }
        YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 217 "./util/configlexer.lex"
+#line 231 "./util/configlexer.lex"
 { YDVAR(1, VAR_LOGFILE) }
        YY_BREAK
 case 31:
 YY_RULE_SETUP
-#line 218 "./util/configlexer.lex"
+#line 232 "./util/configlexer.lex"
 { YDVAR(1, VAR_PIDFILE) }
        YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 219 "./util/configlexer.lex"
+#line 233 "./util/configlexer.lex"
 { YDVAR(1, VAR_ROOT_HINTS) }
        YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 220 "./util/configlexer.lex"
+#line 234 "./util/configlexer.lex"
 { YDVAR(1, VAR_EDNS_BUFFER_SIZE) }
        YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 221 "./util/configlexer.lex"
+#line 235 "./util/configlexer.lex"
 { YDVAR(1, VAR_MSG_BUFFER_SIZE) }
        YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 222 "./util/configlexer.lex"
+#line 236 "./util/configlexer.lex"
 { YDVAR(1, VAR_MSG_CACHE_SIZE) }
        YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 223 "./util/configlexer.lex"
+#line 237 "./util/configlexer.lex"
 { YDVAR(1, VAR_MSG_CACHE_SLABS) }
        YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 224 "./util/configlexer.lex"
+#line 238 "./util/configlexer.lex"
 { YDVAR(1, VAR_RRSET_CACHE_SIZE) }
        YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 225 "./util/configlexer.lex"
+#line 239 "./util/configlexer.lex"
 { YDVAR(1, VAR_RRSET_CACHE_SLABS) }
        YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 226 "./util/configlexer.lex"
+#line 240 "./util/configlexer.lex"
 { YDVAR(1, VAR_CACHE_MAX_TTL) }
        YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 227 "./util/configlexer.lex"
+#line 241 "./util/configlexer.lex"
 { YDVAR(1, VAR_CACHE_MIN_TTL) }
        YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 228 "./util/configlexer.lex"
+#line 242 "./util/configlexer.lex"
 { YDVAR(1, VAR_INFRA_HOST_TTL) }
        YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 229 "./util/configlexer.lex"
+#line 243 "./util/configlexer.lex"
 { YDVAR(1, VAR_INFRA_LAME_TTL) }
        YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 230 "./util/configlexer.lex"
+#line 244 "./util/configlexer.lex"
 { YDVAR(1, VAR_INFRA_CACHE_SLABS) }
        YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 231 "./util/configlexer.lex"
+#line 245 "./util/configlexer.lex"
 { YDVAR(1, VAR_INFRA_CACHE_NUMHOSTS) }
        YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 232 "./util/configlexer.lex"
+#line 246 "./util/configlexer.lex"
 { YDVAR(1, VAR_INFRA_CACHE_LAME_SIZE) }
        YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 233 "./util/configlexer.lex"
+#line 247 "./util/configlexer.lex"
 { YDVAR(1, VAR_NUM_QUERIES_PER_THREAD) }
        YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 234 "./util/configlexer.lex"
+#line 248 "./util/configlexer.lex"
 { YDVAR(1, VAR_JOSTLE_TIMEOUT) }
        YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 235 "./util/configlexer.lex"
+#line 249 "./util/configlexer.lex"
 { YDVAR(1, VAR_TARGET_FETCH_POLICY) }
        YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 236 "./util/configlexer.lex"
+#line 250 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_SHORT_BUFSIZE) }
        YY_BREAK
 case 50:
 YY_RULE_SETUP
-#line 237 "./util/configlexer.lex"
+#line 251 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_LARGE_QUERIES) }
        YY_BREAK
 case 51:
 YY_RULE_SETUP
-#line 238 "./util/configlexer.lex"
+#line 252 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_GLUE) }
        YY_BREAK
 case 52:
 YY_RULE_SETUP
-#line 239 "./util/configlexer.lex"
+#line 253 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_DNSSEC_STRIPPED) }
        YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 240 "./util/configlexer.lex"
+#line 254 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_BELOW_NXDOMAIN) }
        YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 241 "./util/configlexer.lex"
+#line 255 "./util/configlexer.lex"
 { YDVAR(1, VAR_HARDEN_REFERRAL_PATH) }
        YY_BREAK
 case 55:
 YY_RULE_SETUP
-#line 242 "./util/configlexer.lex"
+#line 256 "./util/configlexer.lex"
 { YDVAR(1, VAR_USE_CAPS_FOR_ID) }
        YY_BREAK
 case 56:
 YY_RULE_SETUP
-#line 243 "./util/configlexer.lex"
+#line 257 "./util/configlexer.lex"
 { YDVAR(1, VAR_UNWANTED_REPLY_THRESHOLD) }
        YY_BREAK
 case 57:
 YY_RULE_SETUP
-#line 244 "./util/configlexer.lex"
+#line 258 "./util/configlexer.lex"
 { YDVAR(1, VAR_PRIVATE_ADDRESS) }
        YY_BREAK
 case 58:
 YY_RULE_SETUP
-#line 245 "./util/configlexer.lex"
+#line 259 "./util/configlexer.lex"
 { YDVAR(1, VAR_PRIVATE_DOMAIN) }
        YY_BREAK
 case 59:
 YY_RULE_SETUP
-#line 246 "./util/configlexer.lex"
+#line 260 "./util/configlexer.lex"
 { YDVAR(1, VAR_PREFETCH_KEY) }
        YY_BREAK
 case 60:
 YY_RULE_SETUP
-#line 247 "./util/configlexer.lex"
+#line 261 "./util/configlexer.lex"
 { YDVAR(1, VAR_PREFETCH) }
        YY_BREAK
 case 61:
 YY_RULE_SETUP
-#line 248 "./util/configlexer.lex"
+#line 262 "./util/configlexer.lex"
 { YDVAR(0, VAR_STUB_ZONE) }
        YY_BREAK
 case 62:
 YY_RULE_SETUP
-#line 249 "./util/configlexer.lex"
+#line 263 "./util/configlexer.lex"
 { YDVAR(1, VAR_NAME) }
        YY_BREAK
 case 63:
 YY_RULE_SETUP
-#line 250 "./util/configlexer.lex"
+#line 264 "./util/configlexer.lex"
 { YDVAR(1, VAR_STUB_ADDR) }
        YY_BREAK
 case 64:
 YY_RULE_SETUP
-#line 251 "./util/configlexer.lex"
+#line 265 "./util/configlexer.lex"
 { YDVAR(1, VAR_STUB_HOST) }
        YY_BREAK
 case 65:
 YY_RULE_SETUP
-#line 252 "./util/configlexer.lex"
+#line 266 "./util/configlexer.lex"
 { YDVAR(1, VAR_STUB_PRIME) }
        YY_BREAK
 case 66:
 YY_RULE_SETUP
-#line 253 "./util/configlexer.lex"
+#line 267 "./util/configlexer.lex"
 { YDVAR(1, VAR_STUB_FIRST) }
        YY_BREAK
 case 67:
 YY_RULE_SETUP
-#line 254 "./util/configlexer.lex"
+#line 268 "./util/configlexer.lex"
 { YDVAR(0, VAR_FORWARD_ZONE) }
        YY_BREAK
 case 68:
 YY_RULE_SETUP
-#line 255 "./util/configlexer.lex"
+#line 269 "./util/configlexer.lex"
 { YDVAR(1, VAR_FORWARD_ADDR) }
        YY_BREAK
 case 69:
 YY_RULE_SETUP
-#line 256 "./util/configlexer.lex"
+#line 270 "./util/configlexer.lex"
 { YDVAR(1, VAR_FORWARD_HOST) }
        YY_BREAK
 case 70:
 YY_RULE_SETUP
-#line 257 "./util/configlexer.lex"
+#line 271 "./util/configlexer.lex"
 { YDVAR(1, VAR_FORWARD_FIRST) }
        YY_BREAK
 case 71:
 YY_RULE_SETUP
-#line 258 "./util/configlexer.lex"
+#line 272 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_NOT_QUERY_ADDRESS) }
        YY_BREAK
 case 72:
 YY_RULE_SETUP
-#line 259 "./util/configlexer.lex"
+#line 273 "./util/configlexer.lex"
 { YDVAR(1, VAR_DO_NOT_QUERY_LOCALHOST) }
        YY_BREAK
 case 73:
 YY_RULE_SETUP
-#line 260 "./util/configlexer.lex"
+#line 274 "./util/configlexer.lex"
 { YDVAR(2, VAR_ACCESS_CONTROL) }
        YY_BREAK
 case 74:
 YY_RULE_SETUP
-#line 261 "./util/configlexer.lex"
+#line 275 "./util/configlexer.lex"
 { YDVAR(1, VAR_HIDE_IDENTITY) }
        YY_BREAK
 case 75:
 YY_RULE_SETUP
-#line 262 "./util/configlexer.lex"
+#line 276 "./util/configlexer.lex"
 { YDVAR(1, VAR_HIDE_VERSION) }
        YY_BREAK
 case 76:
 YY_RULE_SETUP
-#line 263 "./util/configlexer.lex"
+#line 277 "./util/configlexer.lex"
 { YDVAR(1, VAR_IDENTITY) }
        YY_BREAK
 case 77:
 YY_RULE_SETUP
-#line 264 "./util/configlexer.lex"
+#line 278 "./util/configlexer.lex"
 { YDVAR(1, VAR_VERSION) }
        YY_BREAK
 case 78:
 YY_RULE_SETUP
-#line 265 "./util/configlexer.lex"
+#line 279 "./util/configlexer.lex"
 { YDVAR(1, VAR_MODULE_CONF) }
        YY_BREAK
 case 79:
 YY_RULE_SETUP
-#line 266 "./util/configlexer.lex"
+#line 280 "./util/configlexer.lex"
 { YDVAR(1, VAR_DLV_ANCHOR) }
        YY_BREAK
 case 80:
 YY_RULE_SETUP
-#line 267 "./util/configlexer.lex"
+#line 281 "./util/configlexer.lex"
 { YDVAR(1, VAR_DLV_ANCHOR_FILE) }
        YY_BREAK
 case 81:
 YY_RULE_SETUP
-#line 268 "./util/configlexer.lex"
+#line 282 "./util/configlexer.lex"
 { YDVAR(1, VAR_TRUST_ANCHOR_FILE) }
        YY_BREAK
 case 82:
 YY_RULE_SETUP
-#line 269 "./util/configlexer.lex"
+#line 283 "./util/configlexer.lex"
 { YDVAR(1, VAR_AUTO_TRUST_ANCHOR_FILE) }
        YY_BREAK
 case 83:
 YY_RULE_SETUP
-#line 270 "./util/configlexer.lex"
+#line 284 "./util/configlexer.lex"
 { YDVAR(1, VAR_TRUSTED_KEYS_FILE) }
        YY_BREAK
 case 84:
 YY_RULE_SETUP
-#line 271 "./util/configlexer.lex"
+#line 285 "./util/configlexer.lex"
 { YDVAR(1, VAR_TRUST_ANCHOR) }
        YY_BREAK
 case 85:
 YY_RULE_SETUP
-#line 272 "./util/configlexer.lex"
+#line 286 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_OVERRIDE_DATE) }
        YY_BREAK
 case 86:
 YY_RULE_SETUP
-#line 273 "./util/configlexer.lex"
+#line 287 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_SIG_SKEW_MIN) }
        YY_BREAK
 case 87:
 YY_RULE_SETUP
-#line 274 "./util/configlexer.lex"
+#line 288 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_SIG_SKEW_MAX) }
        YY_BREAK
 case 88:
 YY_RULE_SETUP
-#line 275 "./util/configlexer.lex"
+#line 289 "./util/configlexer.lex"
 { YDVAR(1, VAR_BOGUS_TTL) }
        YY_BREAK
 case 89:
 YY_RULE_SETUP
-#line 276 "./util/configlexer.lex"
+#line 290 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_CLEAN_ADDITIONAL) }
        YY_BREAK
 case 90:
 YY_RULE_SETUP
-#line 277 "./util/configlexer.lex"
+#line 291 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_PERMISSIVE_MODE) }
        YY_BREAK
 case 91:
 YY_RULE_SETUP
-#line 278 "./util/configlexer.lex"
+#line 292 "./util/configlexer.lex"
 { YDVAR(1, VAR_IGNORE_CD_FLAG) }
        YY_BREAK
 case 92:
 YY_RULE_SETUP
-#line 279 "./util/configlexer.lex"
+#line 293 "./util/configlexer.lex"
 { YDVAR(1, VAR_VAL_LOG_LEVEL) }
        YY_BREAK
 case 93:
 YY_RULE_SETUP
-#line 280 "./util/configlexer.lex"
+#line 294 "./util/configlexer.lex"
 { YDVAR(1, VAR_KEY_CACHE_SIZE) }
        YY_BREAK
 case 94:
 YY_RULE_SETUP
-#line 281 "./util/configlexer.lex"
+#line 295 "./util/configlexer.lex"
 { YDVAR(1, VAR_KEY_CACHE_SLABS) }
        YY_BREAK
 case 95:
 YY_RULE_SETUP
-#line 282 "./util/configlexer.lex"
+#line 296 "./util/configlexer.lex"
 { YDVAR(1, VAR_NEG_CACHE_SIZE) }
        YY_BREAK
 case 96:
 YY_RULE_SETUP
-#line 283 "./util/configlexer.lex"
+#line 297 "./util/configlexer.lex"
 { 
                                  YDVAR(1, VAR_VAL_NSEC3_KEYSIZE_ITERATIONS) }
        YY_BREAK
 case 97:
 YY_RULE_SETUP
-#line 285 "./util/configlexer.lex"
+#line 299 "./util/configlexer.lex"
 { YDVAR(1, VAR_ADD_HOLDDOWN) }
        YY_BREAK
 case 98:
 YY_RULE_SETUP
-#line 286 "./util/configlexer.lex"
+#line 300 "./util/configlexer.lex"
 { YDVAR(1, VAR_DEL_HOLDDOWN) }
        YY_BREAK
 case 99:
 YY_RULE_SETUP
-#line 287 "./util/configlexer.lex"
+#line 301 "./util/configlexer.lex"
 { YDVAR(1, VAR_KEEP_MISSING) }
        YY_BREAK
 case 100:
 YY_RULE_SETUP
-#line 288 "./util/configlexer.lex"
+#line 302 "./util/configlexer.lex"
 { YDVAR(1, VAR_USE_SYSLOG) }
        YY_BREAK
 case 101:
 YY_RULE_SETUP
-#line 289 "./util/configlexer.lex"
+#line 303 "./util/configlexer.lex"
 { YDVAR(1, VAR_LOG_TIME_ASCII) }
        YY_BREAK
 case 102:
 YY_RULE_SETUP
-#line 290 "./util/configlexer.lex"
+#line 304 "./util/configlexer.lex"
 { YDVAR(1, VAR_LOG_QUERIES) }
        YY_BREAK
 case 103:
 YY_RULE_SETUP
-#line 291 "./util/configlexer.lex"
+#line 305 "./util/configlexer.lex"
 { YDVAR(2, VAR_LOCAL_ZONE) }
        YY_BREAK
 case 104:
 YY_RULE_SETUP
-#line 292 "./util/configlexer.lex"
+#line 306 "./util/configlexer.lex"
 { YDVAR(1, VAR_LOCAL_DATA) }
        YY_BREAK
 case 105:
 YY_RULE_SETUP
-#line 293 "./util/configlexer.lex"
+#line 307 "./util/configlexer.lex"
 { YDVAR(1, VAR_LOCAL_DATA_PTR) }
        YY_BREAK
 case 106:
 YY_RULE_SETUP
-#line 294 "./util/configlexer.lex"
+#line 308 "./util/configlexer.lex"
 { YDVAR(1, VAR_STATISTICS_INTERVAL) }
        YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 295 "./util/configlexer.lex"
+#line 309 "./util/configlexer.lex"
 { YDVAR(1, VAR_STATISTICS_CUMULATIVE) }
        YY_BREAK
 case 108:
 YY_RULE_SETUP
-#line 296 "./util/configlexer.lex"
+#line 310 "./util/configlexer.lex"
 { YDVAR(1, VAR_EXTENDED_STATISTICS) }
        YY_BREAK
 case 109:
 YY_RULE_SETUP
-#line 297 "./util/configlexer.lex"
+#line 311 "./util/configlexer.lex"
 { YDVAR(0, VAR_REMOTE_CONTROL) }
        YY_BREAK
 case 110:
 YY_RULE_SETUP
-#line 298 "./util/configlexer.lex"
+#line 312 "./util/configlexer.lex"
 { YDVAR(1, VAR_CONTROL_ENABLE) }
        YY_BREAK
 case 111:
 YY_RULE_SETUP
-#line 299 "./util/configlexer.lex"
+#line 313 "./util/configlexer.lex"
 { YDVAR(1, VAR_CONTROL_INTERFACE) }
        YY_BREAK
 case 112:
 YY_RULE_SETUP
-#line 300 "./util/configlexer.lex"
+#line 314 "./util/configlexer.lex"
 { YDVAR(1, VAR_CONTROL_PORT) }
        YY_BREAK
 case 113:
 YY_RULE_SETUP
-#line 301 "./util/configlexer.lex"
+#line 315 "./util/configlexer.lex"
 { YDVAR(1, VAR_SERVER_KEY_FILE) }
        YY_BREAK
 case 114:
 YY_RULE_SETUP
-#line 302 "./util/configlexer.lex"
+#line 316 "./util/configlexer.lex"
 { YDVAR(1, VAR_SERVER_CERT_FILE) }
        YY_BREAK
 case 115:
 YY_RULE_SETUP
-#line 303 "./util/configlexer.lex"
+#line 317 "./util/configlexer.lex"
 { YDVAR(1, VAR_CONTROL_KEY_FILE) }
        YY_BREAK
 case 116:
 YY_RULE_SETUP
-#line 304 "./util/configlexer.lex"
+#line 318 "./util/configlexer.lex"
 { YDVAR(1, VAR_CONTROL_CERT_FILE) }
        YY_BREAK
 case 117:
 YY_RULE_SETUP
-#line 305 "./util/configlexer.lex"
+#line 319 "./util/configlexer.lex"
 { YDVAR(1, VAR_PYTHON_SCRIPT) }
        YY_BREAK
 case 118:
 YY_RULE_SETUP
-#line 306 "./util/configlexer.lex"
+#line 320 "./util/configlexer.lex"
 { YDVAR(0, VAR_PYTHON) }
        YY_BREAK
 case 119:
 YY_RULE_SETUP
-#line 307 "./util/configlexer.lex"
+#line 321 "./util/configlexer.lex"
 { YDVAR(1, VAR_DOMAIN_INSECURE) }
        YY_BREAK
 case 120:
 YY_RULE_SETUP
-#line 308 "./util/configlexer.lex"
+#line 322 "./util/configlexer.lex"
 { YDVAR(1, VAR_MINIMAL_RESPONSES) }
        YY_BREAK
 case 121:
 YY_RULE_SETUP
-#line 309 "./util/configlexer.lex"
+#line 323 "./util/configlexer.lex"
 { YDVAR(1, VAR_RRSET_ROUNDROBIN) }
        YY_BREAK
 case 122:
 YY_RULE_SETUP
-#line 310 "./util/configlexer.lex"
+#line 324 "./util/configlexer.lex"
 { YDVAR(1, VAR_MAX_UDP_SIZE) }
        YY_BREAK
 case 123:
 /* rule 123 can match eol */
 YY_RULE_SETUP
-#line 311 "./util/configlexer.lex"
+#line 325 "./util/configlexer.lex"
 { LEXOUT(("NL\n")); cfg_parser->line++; }
        YY_BREAK
 /* Quoted strings. Strip leading and ending quotes */
 case 124:
 YY_RULE_SETUP
-#line 314 "./util/configlexer.lex"
+#line 328 "./util/configlexer.lex"
 { BEGIN(quotedstring); LEXOUT(("QS ")); }
        YY_BREAK
 case YY_STATE_EOF(quotedstring):
-#line 315 "./util/configlexer.lex"
+#line 329 "./util/configlexer.lex"
 {
         yyerror("EOF inside quoted string");
        if(--num_args == 0) { BEGIN(INITIAL); }
@@ -2582,19 +2596,19 @@ case YY_STATE_EOF(quotedstring):
        YY_BREAK
 case 125:
 YY_RULE_SETUP
-#line 320 "./util/configlexer.lex"
+#line 334 "./util/configlexer.lex"
 { LEXOUT(("STR(%s) ", yytext)); yymore(); }
        YY_BREAK
 case 126:
 /* rule 126 can match eol */
 YY_RULE_SETUP
-#line 321 "./util/configlexer.lex"
+#line 335 "./util/configlexer.lex"
 { yyerror("newline inside quoted string, no end \""); 
                          cfg_parser->line++; BEGIN(INITIAL); }
        YY_BREAK
 case 127:
 YY_RULE_SETUP
-#line 323 "./util/configlexer.lex"
+#line 337 "./util/configlexer.lex"
 {
         LEXOUT(("QE "));
        if(--num_args == 0) { BEGIN(INITIAL); }
@@ -2609,11 +2623,11 @@ YY_RULE_SETUP
 /* Single Quoted strings. Strip leading and ending quotes */
 case 128:
 YY_RULE_SETUP
-#line 335 "./util/configlexer.lex"
+#line 349 "./util/configlexer.lex"
 { BEGIN(singlequotedstr); LEXOUT(("SQS ")); }
        YY_BREAK
 case YY_STATE_EOF(singlequotedstr):
-#line 336 "./util/configlexer.lex"
+#line 350 "./util/configlexer.lex"
 {
         yyerror("EOF inside quoted string");
        if(--num_args == 0) { BEGIN(INITIAL); }
@@ -2622,19 +2636,19 @@ case YY_STATE_EOF(singlequotedstr):
        YY_BREAK
 case 129:
 YY_RULE_SETUP
-#line 341 "./util/configlexer.lex"
+#line 355 "./util/configlexer.lex"
 { LEXOUT(("STR(%s) ", yytext)); yymore(); }
        YY_BREAK
 case 130:
 /* rule 130 can match eol */
 YY_RULE_SETUP
-#line 342 "./util/configlexer.lex"
+#line 356 "./util/configlexer.lex"
 { yyerror("newline inside quoted string, no end '"); 
                             cfg_parser->line++; BEGIN(INITIAL); }
        YY_BREAK
 case 131:
 YY_RULE_SETUP
-#line 344 "./util/configlexer.lex"
+#line 358 "./util/configlexer.lex"
 {
         LEXOUT(("SQE "));
        if(--num_args == 0) { BEGIN(INITIAL); }
@@ -2649,12 +2663,12 @@ YY_RULE_SETUP
 /* include: directive */
 case 132:
 YY_RULE_SETUP
-#line 356 "./util/configlexer.lex"
+#line 370 "./util/configlexer.lex"
 { 
        LEXOUT(("v(%s) ", yytext)); inc_prev = YYSTATE; BEGIN(include); }
        YY_BREAK
 case YY_STATE_EOF(include):
-#line 358 "./util/configlexer.lex"
+#line 372 "./util/configlexer.lex"
 {
         yyerror("EOF inside include directive");
         BEGIN(inc_prev);
@@ -2662,23 +2676,23 @@ case YY_STATE_EOF(include):
        YY_BREAK
 case 133:
 YY_RULE_SETUP
-#line 362 "./util/configlexer.lex"
+#line 376 "./util/configlexer.lex"
 { LEXOUT(("ISP ")); /* ignore */ }
        YY_BREAK
 case 134:
 /* rule 134 can match eol */
 YY_RULE_SETUP
-#line 363 "./util/configlexer.lex"
+#line 377 "./util/configlexer.lex"
 { LEXOUT(("NL\n")); cfg_parser->line++;}
        YY_BREAK
 case 135:
 YY_RULE_SETUP
-#line 364 "./util/configlexer.lex"
+#line 378 "./util/configlexer.lex"
 { LEXOUT(("IQS ")); BEGIN(include_quoted); }
        YY_BREAK
 case 136:
 YY_RULE_SETUP
-#line 365 "./util/configlexer.lex"
+#line 379 "./util/configlexer.lex"
 {
        LEXOUT(("Iunquotedstr(%s) ", yytext));
        config_start_include_glob(yytext);
@@ -2686,7 +2700,7 @@ YY_RULE_SETUP
 }
        YY_BREAK
 case YY_STATE_EOF(include_quoted):
-#line 370 "./util/configlexer.lex"
+#line 384 "./util/configlexer.lex"
 {
         yyerror("EOF inside quoted string");
         BEGIN(inc_prev);
@@ -2694,19 +2708,19 @@ case YY_STATE_EOF(include_quoted):
        YY_BREAK
 case 137:
 YY_RULE_SETUP
-#line 374 "./util/configlexer.lex"
+#line 388 "./util/configlexer.lex"
 { LEXOUT(("ISTR(%s) ", yytext)); yymore(); }
        YY_BREAK
 case 138:
 /* rule 138 can match eol */
 YY_RULE_SETUP
-#line 375 "./util/configlexer.lex"
+#line 389 "./util/configlexer.lex"
 { yyerror("newline before \" in include name"); 
                                  cfg_parser->line++; BEGIN(inc_prev); }
        YY_BREAK
 case 139:
 YY_RULE_SETUP
-#line 377 "./util/configlexer.lex"
+#line 391 "./util/configlexer.lex"
 {
        LEXOUT(("IQE "));
        yytext[yyleng - 1] = '\0';
@@ -2716,7 +2730,7 @@ YY_RULE_SETUP
        YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(val):
-#line 383 "./util/configlexer.lex"
+#line 397 "./util/configlexer.lex"
 {
        LEXOUT(("LEXEOF "));
        yy_set_bol(1); /* Set beginning of line, so "^" rules match.  */
@@ -2730,31 +2744,31 @@ case YY_STATE_EOF(val):
        YY_BREAK
 case 140:
 YY_RULE_SETUP
-#line 394 "./util/configlexer.lex"
+#line 408 "./util/configlexer.lex"
 { LEXOUT(("unquotedstr(%s) ", yytext)); 
                        if(--num_args == 0) { BEGIN(INITIAL); }
                        yylval.str = strdup(yytext); return STRING_ARG; }
        YY_BREAK
 case 141:
 YY_RULE_SETUP
-#line 398 "./util/configlexer.lex"
+#line 412 "./util/configlexer.lex"
 {
        ub_c_error_msg("unknown keyword '%s'", yytext);
        }
        YY_BREAK
 case 142:
 YY_RULE_SETUP
-#line 402 "./util/configlexer.lex"
+#line 416 "./util/configlexer.lex"
 {
        ub_c_error_msg("stray '%s'", yytext);
        }
        YY_BREAK
 case 143:
 YY_RULE_SETUP
-#line 406 "./util/configlexer.lex"
+#line 420 "./util/configlexer.lex"
 ECHO;
        YY_BREAK
-#line 2756 "<stdout>"
+#line 2770 "<stdout>"
 
        case YY_END_OF_BUFFER:
                {
@@ -3709,7 +3723,7 @@ void yyfree (void * ptr )
 
 #define YYTABLES_NAME "yytables"
 
-#line 406 "./util/configlexer.lex"
+#line 420 "./util/configlexer.lex"
 
 
 

diff --git a/util/configlexer.lex b/util/configlexer.lex
index b4fc868892b7e95f2d3e718ed711574831bf4cee..9191e1f7cc47d259a072f4dcc509ef02664b90dd 100644 (file)
--- a/util/configlexer.lex
+++ b/util/configlexer.lex
@@ -43,14 +43,27 @@ struct inc_state {
        struct inc_state* next;
 };
 static struct inc_state* config_include_stack = NULL;
+static int inc_depth = 0;
 static int inc_prev = 0;
 static int num_args = 0;
 
+void init_cfg_parse(void)
+{
+       config_include_stack = NULL;
+       inc_depth = 0;
+       inc_prev = 0;
+       num_args = 0;
+}
+
 static void config_start_include(const char* filename)
 {
        FILE *input;
        struct inc_state* s;
        char* nm;
+       if(inc_depth++ > 100000) {
+               ub_c_error_msg("too many include files");
+               return;
+       }
        if(strlen(filename) == 0) {
                ub_c_error_msg("empty include file name");
                return;
@@ -138,6 +151,7 @@ static void config_start_include_glob(const char* filename)
 static void config_end_include(void)
 {
        struct inc_state* s = config_include_stack;
+       --inc_depth;
        if(!s) return;
        free(cfg_parser->filename);
        cfg_parser->filename = s->filename;