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-rw-r--r--source4/heimdal/lib/hx509/sel-lex.l135
1 files changed, 135 insertions, 0 deletions
diff --git a/source4/heimdal/lib/hx509/sel-lex.l b/source4/heimdal/lib/hx509/sel-lex.l
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+++ b/source4/heimdal/lib/hx509/sel-lex.l
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+%{
+/*
+ * Copyright (c) 2004, 2008 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
+ */
+
+/* $Id$ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#undef ECHO
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include "sel.h"
+#include "sel-gram.h"
+unsigned lineno = 1;
+
+static char * handle_string(void);
+static int lex_input(char *, int);
+
+struct hx_expr_input _hx509_expr_input;
+
+#define YY_NO_UNPUT 1
+
+#undef YY_INPUT
+#define YY_INPUT(buf,res,maxsize) (res = lex_input(buf, maxsize))
+
+#undef ECHO
+
+%}
+%%
+
+TRUE { return kw_TRUE; }
+FALSE { return kw_FALSE; }
+AND { return kw_AND; }
+OR { return kw_OR; }
+IN { return kw_IN; }
+TAILMATCH { return kw_TAILMATCH; }
+
+[A-Za-z][-A-Za-z0-9_]* {
+ yylval.string = strdup ((const char *)yytext);
+ return IDENTIFIER;
+ }
+"\"" { yylval.string = handle_string(); return STRING; }
+\n { ++lineno; }
+[,.!={}()%] { return *yytext; }
+[ \t] ;
+%%
+
+static char *
+handle_string(void)
+{
+ char x[1024];
+ int i = 0;
+ int c;
+ int quote = 0;
+ while((c = input()) != EOF){
+ if(quote) {
+ x[i++] = '\\';
+ x[i++] = c;
+ quote = 0;
+ continue;
+ }
+ if(c == '\n'){
+ _hx509_sel_yyerror("unterminated string");
+ lineno++;
+ break;
+ }
+ if(c == '\\'){
+ quote++;
+ continue;
+ }
+ if(c == '\"')
+ break;
+ x[i++] = c;
+ }
+ x[i] = '\0';
+ return strdup(x);
+}
+
+int
+yywrap ()
+{
+ return 1;
+}
+
+static int
+lex_input(char *buf, int max_size)
+{
+ int n;
+
+ n = _hx509_expr_input.length - _hx509_expr_input.offset;
+ if (max_size < n)
+ n = max_size;
+ if (n <= 0)
+ return YY_NULL;
+
+ memcpy(buf, _hx509_expr_input.buf + _hx509_expr_input.offset, n);
+ _hx509_expr_input.offset += n;
+
+ return n;
+}