diff options
Diffstat (limited to 'src/starter/lexer.l')
| -rw-r--r-- | src/starter/lexer.l | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/src/starter/lexer.l b/src/starter/lexer.l deleted file mode 100644 index 734776a74..000000000 --- a/src/starter/lexer.l +++ /dev/null @@ -1,215 +0,0 @@ -%option noinput -%option nounput -%{ -/* FreeS/WAN config file parser (parser.l) - * Copyright (C) 2001 Mathieu Lafon - Arkoon Network Security - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - */ - -#include <string.h> -#include <stdlib.h> - -#ifdef HAVE_GLOB_H -#include <glob.h> -#endif - -#include "parser.h" - -#define MAX_INCLUDE_DEPTH 20 - -extern void yyerror(const char *); -extern int yylex(void); -extern int yylex_destroy(void); - -static struct { - int stack_ptr; - YY_BUFFER_STATE stack[MAX_INCLUDE_DEPTH]; - FILE *file[MAX_INCLUDE_DEPTH]; - unsigned int line[MAX_INCLUDE_DEPTH]; - char *filename[MAX_INCLUDE_DEPTH]; -} __parser_y_private; - -void _parser_y_error(char *b, int size, const char *s); -void _parser_y_init (const char *f); -void _parser_y_fini (void); -int _parser_y_include (const char *filename); - -void _parser_y_error(char *b, int size, const char *s) -{ - extern char *yytext; // was: char yytext[]; - - snprintf(b, size, "%s:%d: %s [%s]", - __parser_y_private.filename[__parser_y_private.stack_ptr], - __parser_y_private.line[__parser_y_private.stack_ptr], - s, yytext); -} - -void _parser_y_init (const char *f) -{ - memset(&__parser_y_private, 0, sizeof(__parser_y_private)); - __parser_y_private.line[0] = 1; - __parser_y_private.filename[0] = strdup(f); -} - -void _parser_y_fini (void) -{ - unsigned int i; - - for (i = 0; i < MAX_INCLUDE_DEPTH; i++) - { - if (__parser_y_private.filename[i]) - free(__parser_y_private.filename[i]); - if (__parser_y_private.file[i]) - fclose(__parser_y_private.file[i]); - } - memset(&__parser_y_private, 0, sizeof(__parser_y_private)); - yylex_destroy(); -} - -/** - * parse the file located at filename - */ -int include_file(char *filename) -{ - unsigned int p = __parser_y_private.stack_ptr + 1; - FILE *f; - - if (p >= MAX_INCLUDE_DEPTH) - { - yyerror("max inclusion depth reached"); - return 1; - } - - f = fopen(filename, "r"); - if (!f) - { - yyerror("can't open include filename"); - return 0; /* ignore this error */ - } - - __parser_y_private.stack_ptr++; - __parser_y_private.file[p] = f; - __parser_y_private.stack[p] = YY_CURRENT_BUFFER; - __parser_y_private.line[p] = 1; - __parser_y_private.filename[p] = strdup(filename); - - yy_switch_to_buffer(yy_create_buffer(f, YY_BUF_SIZE)); - return 0; -} - -int _parser_y_include (const char *filename) -{ - int ret = 0; -#ifdef HAVE_GLOB_H - { - glob_t files; - int i; - - ret = glob(filename, GLOB_ERR, NULL, &files); - if (ret) - { - const char *err; - - switch (ret) - { - case GLOB_NOSPACE: - err = "include files ran out of memory"; - break; - case GLOB_ABORTED: - err = "include files aborted due to read error"; - break; - case GLOB_NOMATCH: - err = "include files found no matches"; - break; - default: - err = "unknown include files error"; - } - globfree(&files); - yyerror(err); - return 1; - } - - for (i = 0; i < files.gl_pathc; i++) - { - if ((ret = include_file(files.gl_pathv[i]))) - { - break; - } - } - globfree(&files); - } -#else /* HAVE_GLOB_H */ - /* if glob(3) is not available, try to load pattern directly */ - ret = include_file(filename); -#endif /* HAVE_GLOB_H */ - return ret; -} - -%} - -%% - -<<EOF>> { - if (__parser_y_private.filename[__parser_y_private.stack_ptr]) { - free(__parser_y_private.filename[__parser_y_private.stack_ptr]); - __parser_y_private.filename[__parser_y_private.stack_ptr] = NULL; - } - if (__parser_y_private.file[__parser_y_private.stack_ptr]) { - fclose(__parser_y_private.file[__parser_y_private.stack_ptr]); - __parser_y_private.file[__parser_y_private.stack_ptr] = NULL; - yy_delete_buffer (YY_CURRENT_BUFFER); - yy_switch_to_buffer - (__parser_y_private.stack[__parser_y_private.stack_ptr]); - } - if (--__parser_y_private.stack_ptr < 0) { - yyterminate(); - } -} - -^[\t ]+ return FIRST_SPACES; - -[\t ]+ /* ignore spaces in line */ ; - -= return EQUAL; - -\n|#.*\n { - __parser_y_private.line[__parser_y_private.stack_ptr]++; - return EOL; - } - -config return CONFIG; -setup return SETUP; -conn return CONN; -ca return CA; -include return INCLUDE; -version return FILE_VERSION; - -[^\"= \t\n]+ { - yylval.s = strdup(yytext); - return STRING; - } - -\"[^\"\n]*\" { - yylval.s = strdup(yytext+1); - if (yylval.s) yylval.s[strlen(yylval.s)-1]='\0'; - return STRING; - } - -. yyerror(yytext); - -%% - -int yywrap(void) -{ - return 1; -} - |