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-rw-r--r--modules/ssl/ssl_expr_eval.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/modules/ssl/ssl_expr_eval.c b/modules/ssl/ssl_expr_eval.c
deleted file mode 100644
index d8c5ea5f9e..0000000000
--- a/modules/ssl/ssl_expr_eval.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/* _ _
-** _ __ ___ ___ __| | ___ ___| | mod_ssl
-** | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
-** | | | | | | (_) | (_| | \__ \__ \ | www.modssl.org
-** |_| |_| |_|\___/ \__,_|___|___/___/_| ftp.modssl.org
-** |_____|
-** ssl_expr_eval.c
-** Expression Evaluation
-*/
-
-/* ====================================================================
- * Copyright (c) 1998-2001 Ralf S. Engelschall. 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. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by
- * Ralf S. Engelschall <rse@engelschall.com> for use in the
- * mod_ssl project (http://www.modssl.org/)."
- *
- * 4. The names "mod_ssl" must not be used to endorse or promote
- * products derived from this software without prior written
- * permission. For written permission, please contact
- * rse@engelschall.com.
- *
- * 5. Products derived from this software may not be called "mod_ssl"
- * nor may "mod_ssl" appear in their names without prior
- * written permission of Ralf S. Engelschall.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by
- * Ralf S. Engelschall <rse@engelschall.com> for use in the
- * mod_ssl project (http://www.modssl.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY RALF S. ENGELSCHALL ``AS IS'' AND ANY
- * EXPRESSED 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 RALF S. ENGELSCHALL OR
- * HIS 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.
- * ====================================================================
- */
- /* ``Make love,
- not software!''
- -- Unknown */
-#include "mod_ssl.h"
-
-
-/* _________________________________________________________________
-**
-** Expression Evaluation
-** _________________________________________________________________
-*/
-
-static BOOL ssl_expr_eval_comp(request_rec *, ssl_expr *);
-static char *ssl_expr_eval_word(request_rec *, ssl_expr *);
-static char *ssl_expr_eval_func_file(request_rec *, char *);
-static int ssl_expr_eval_strcmplex(char *, char *);
-
-BOOL ssl_expr_eval(request_rec *r, ssl_expr *node)
-{
- switch (node->node_op) {
- case op_True: {
- return TRUE;
- }
- case op_False: {
- return FALSE;
- }
- case op_Not: {
- ssl_expr *e = (ssl_expr *)node->node_arg1;
- return (!ssl_expr_eval(r, e));
- }
- case op_Or: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval(r, e1) || ssl_expr_eval(r, e2));
- }
- case op_And: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval(r, e1) && ssl_expr_eval(r, e2));
- }
- case op_Comp: {
- ssl_expr *e = (ssl_expr *)node->node_arg1;
- return ssl_expr_eval_comp(r, e);
- }
- default: {
- ssl_expr_error = "Internal evaluation error: Unknown expression node";
- return FALSE;
- }
- }
-}
-
-static BOOL ssl_expr_eval_comp(request_rec *r, ssl_expr *node)
-{
- switch (node->node_op) {
- case op_EQ: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (strcmp(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) == 0);
- }
- case op_NE: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (strcmp(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) != 0);
- }
- case op_LT: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval_strcmplex(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) < 0);
- }
- case op_LE: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval_strcmplex(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) <= 0);
- }
- case op_GT: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval_strcmplex(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) > 0);
- }
- case op_GE: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- return (ssl_expr_eval_strcmplex(ssl_expr_eval_word(r, e1), ssl_expr_eval_word(r, e2)) >= 0);
- }
- case op_IN: {
- ssl_expr *e1 = (ssl_expr *)node->node_arg1;
- ssl_expr *e2 = (ssl_expr *)node->node_arg2;
- ssl_expr *e3;
- char *w1 = ssl_expr_eval_word(r, e1);
- BOOL found = FALSE;
- do {
- e3 = (ssl_expr *)e2->node_arg1;
- e2 = (ssl_expr *)e2->node_arg2;
- if (strcmp(w1, ssl_expr_eval_word(r, e3)) == 0) {
- found = TRUE;
- break;
- }
- } while (e2 != NULL);
- return found;
- }
- case op_REG: {
- ssl_expr *e1;
- ssl_expr *e2;
- char *word;
- regex_t *regex;
-
- e1 = (ssl_expr *)node->node_arg1;
- e2 = (ssl_expr *)node->node_arg2;
- word = ssl_expr_eval_word(r, e1);
- regex = (regex_t *)(e2->node_arg1);
- return (regexec(regex, word, 0, NULL, 0) == 0);
- }
- case op_NRE: {
- ssl_expr *e1;
- ssl_expr *e2;
- char *word;
- regex_t *regex;
-
- e1 = (ssl_expr *)node->node_arg1;
- e2 = (ssl_expr *)node->node_arg2;
- word = ssl_expr_eval_word(r, e1);
- regex = (regex_t *)(e2->node_arg1);
- return !(regexec(regex, word, 0, NULL, 0) == 0);
- }
- default: {
- ssl_expr_error = "Internal evaluation error: Unknown expression node";
- return FALSE;
- }
- }
-}
-
-static char *ssl_expr_eval_word(request_rec *r, ssl_expr *node)
-{
- switch (node->node_op) {
- case op_Digit: {
- char *string = (char *)node->node_arg1;
- return string;
- }
- case op_String: {
- char *string = (char *)node->node_arg1;
- return string;
- }
- case op_Var: {
- char *var = (char *)node->node_arg1;
- char *val = ssl_var_lookup(r->pool, r->server, r->connection, r, var);
- return (val == NULL ? "" : val);
- }
- case op_Func: {
- char *name = (char *)node->node_arg1;
- ssl_expr *args = (ssl_expr *)node->node_arg2;
- if (strEQ(name, "file"))
- return ssl_expr_eval_func_file(r, (char *)(args->node_arg1));
- else {
- ssl_expr_error = "Internal evaluation error: Unknown function name";
- return "";
- }
- }
- default: {
- ssl_expr_error = "Internal evaluation error: Unknown expression node";
- return FALSE;
- }
- }
-}
-
-static char *ssl_expr_eval_func_file(request_rec *r, char *filename)
-{
- FILE *fp;
- char *buf;
- int len;
-
- if ((fp = ap_pfopen(r->pool, filename, "r")) == NULL) {
- ssl_expr_error = "Cannot open file";
- return "";
- }
- fseek(fp, 0, SEEK_END);
- len = ftell(fp);
- if (len == 0) {
- buf = (char *)ap_palloc(r->pool, sizeof(char) * 1);
- *buf = NUL;
- }
- else {
- if ((buf = (char *)ap_palloc(r->pool, sizeof(char) * len+1)) == NULL) {
- ssl_expr_error = "Cannot allocate memory";
- ap_pfclose(r->pool, fp);
- return "";
- }
- fseek(fp, 0, SEEK_SET);
- if (fread(buf, len, 1, fp) == 0) {
- ssl_expr_error = "Cannot read from file";
- fclose(fp);
- return ("");
- }
- buf[len] = NUL;
- }
- ap_pfclose(r->pool, fp);
- return buf;
-}
-
-/* a variant of strcmp(3) which works correctly also for number strings */
-static int ssl_expr_eval_strcmplex(char *cpNum1, char *cpNum2)
-{
- int i, n1, n2;
-
- if (cpNum1 == NULL)
- return -1;
- if (cpNum2 == NULL)
- return +1;
- n1 = strlen(cpNum1);
- n2 = strlen(cpNum2);
- if (n1 > n2)
- return 1;
- if (n1 < n2)
- return -1;
- for (i = 0; i < n1; i++) {
- if (cpNum1[i] > cpNum2[i])
- return 1;
- if (cpNum1[i] < cpNum2[i])
- return -1;
- }
- return 0;
-}
-
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