Mercurial > hg > freeDiameter
view extensions/rt_deny_by_size/rt_deny_by_size_conf.y @ 1562:6219359a36a9 default tip
Merge latest changes from proposed branch
author | Sebastien Decugis <sdecugis@freediameter.net> |
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date | Mon, 21 Jun 2021 19:08:18 +0800 |
parents | 56f9e13f0ef0 |
children |
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/********************************************************************************************************* * Software License Agreement (BSD License) * * Author: Thomas Klausner <tk@giga.or.at> * * * * Copyright (c) 2018, Thomas Klausner * * All rights reserved. * * * * Written under contract by Effortel Technologies SA, http://effortel.com/ * * * * Redistribution and use of this software in source and binary forms, with or without modification, are * * permitted provided that the following conditions are met: * * * * * Redistributions of source code must retain the above * * copyright notice, this list of conditions and the * * following disclaimer. * * * * * Redistributions in binary form must reproduce the above * * copyright notice, this list of conditions and the * * following disclaimer in the documentation and/or other * * materials provided with the distribution. * * * * * Neither the name of the WIDE Project or NICT nor the * * names of its contributors may be used to endorse or * * promote products derived from this software without * * specific prior written permission of WIDE Project and * * NICT. * * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *********************************************************************************************************/ /* Yacc extension's configuration parser. */ /* For development only : */ %debug %error-verbose /* The parser receives the configuration file filename as parameter */ %parse-param {char * conffile} /* Keep track of location */ %locations %pure-parser %{ #include "rt_deny_by_size.h" #include "rt_deny_by_size_conf.tab.h" /* Forward declaration */ int rt_deny_by_size_confparse(char *conffile); void rt_deny_by_size_confrestart(FILE *input_file); /* Parse the configuration file */ int rt_deny_by_size_conf_handle(char * conffile) { extern FILE *rt_deny_by_size_confin; int ret; TRACE_ENTRY("%p", conffile); TRACE_DEBUG(FULL, "Parsing configuration file: %s...", conffile); rt_deny_by_size_confin = fopen(conffile, "r"); if (rt_deny_by_size_confin == NULL) { ret = errno; TRACE_ERROR("Unable to open extension configuration file %s for reading: %s", conffile, strerror(ret)); return ret; } rt_deny_by_size_confrestart(rt_deny_by_size_confin); ret = rt_deny_by_size_confparse(conffile); fclose(rt_deny_by_size_confin); if (ret != 0) { TRACE_ERROR( "Unable to parse the configuration file %s.", conffile); return EINVAL; } else { TRACE_DEBUG(FULL, "[rt_deny_by_size] MaximumSize: %d.", rt_deny_by_size_conf.maximum_size); } return 0; } /* The Lex parser prototype */ int rt_deny_by_size_conflex(YYSTYPE *lvalp, YYLTYPE *llocp); /* Function to report the errors */ void yyerror (YYLTYPE *ploc, char * conffile, char const *s) { TRACE_DEBUG(INFO, "Error in configuration parsing"); if (ploc->first_line != ploc->last_line) fd_log_error("%s:%d.%d-%d.%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_line, ploc->last_column, s); else if (ploc->first_column != ploc->last_column) fd_log_error("%s:%d.%d-%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_column, s); else fd_log_error("%s:%d.%d : %s", conffile, ploc->first_line, ploc->first_column, s); } %} /* Values returned by lex for token */ %union { int integer; } /* In case of error in the lexical analysis */ %token LEX_ERROR /* A (de)quoted string (malloc'd in lex parser; it must be freed after use) */ %token <integer> INTEGER /* Tokens */ %token MAXIMUMSIZE /* -------------------------------------- */ %% /* The grammar definition */ conffile: /* empty is OK */ | conffile size | conffile errors { yyerror(&yylloc, conffile, "An error occurred while parsing the configuration file"); YYABORT; } ; /* Lexical or syntax error */ errors: LEX_ERROR | error ; size: MAXIMUMSIZE '=' INTEGER ';' { rt_deny_by_size_conf.maximum_size=$3; } ;