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-rw-r--r--tools/gen_test_char.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/tools/gen_test_char.c b/tools/gen_test_char.c
new file mode 100644
index 0000000..c48d2cb
--- /dev/null
+++ b/tools/gen_test_char.c
@@ -0,0 +1,131 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(WIN32) || defined(OS2)
+#define NEED_ENHANCED_ESCAPES
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+
+/* A bunch of functions in util.c scan strings looking for certain characters.
+ * To make that more efficient we encode a lookup table.
+ */
+#define T_ESCAPE_SHELL_CMD (0x01)
+#define T_ESCAPE_PATH_SEGMENT (0x02)
+#define T_OS_ESCAPE_PATH (0x04)
+#define T_ESCAPE_ECHO (0x08)
+#define T_ESCAPE_URLENCODED (0x10)
+#define T_ESCAPE_XML (0x20)
+#define T_ESCAPE_LDAP_DN (0x40)
+#define T_ESCAPE_LDAP_FILTER (0x80)
+
+int main(int argc, char *argv[])
+{
+ unsigned c;
+ unsigned char flags;
+
+ printf("/* this file is automatically generated by gen_test_char, "
+ "do not edit. \"make include/private/apr_escape_test_char.h\" to regenerate. */\n"
+ "#define T_ESCAPE_SHELL_CMD (%u)\n"
+ "#define T_ESCAPE_PATH_SEGMENT (%u)\n"
+ "#define T_OS_ESCAPE_PATH (%u)\n"
+ "#define T_ESCAPE_ECHO (%u)\n"
+ "#define T_ESCAPE_URLENCODED (%u)\n"
+ "#define T_ESCAPE_XML (%u)\n"
+ "#define T_ESCAPE_LDAP_DN (%u)\n"
+ "#define T_ESCAPE_LDAP_FILTER (%u)\n"
+ "\n"
+ "static const unsigned char test_char_table[256] = {",
+ T_ESCAPE_SHELL_CMD,
+ T_ESCAPE_PATH_SEGMENT,
+ T_OS_ESCAPE_PATH,
+ T_ESCAPE_ECHO,
+ T_ESCAPE_URLENCODED,
+ T_ESCAPE_XML,
+ T_ESCAPE_LDAP_DN,
+ T_ESCAPE_LDAP_FILTER);
+
+ for (c = 0; c < 256; ++c) {
+ flags = 0;
+ if (c % 20 == 0)
+ printf("\n ");
+
+ /* escape_shell_cmd */
+#ifdef NEED_ENHANCED_ESCAPES
+ /* Win32/OS2 have many of the same vulnerable characters
+ * as Unix sh, plus the carriage return and percent char.
+ * The proper escaping of these characters varies from unix
+ * since Win32/OS2 use carets or doubled-double quotes,
+ * and neither lf nor cr can be escaped. We escape unix
+ * specific as well, to assure that cross-compiled unix
+ * applications behave similiarly when invoked on win32/os2.
+ *
+ * Rem please keep in-sync with apr's list in win32/filesys.c
+ */
+ if (c && strchr("&;`'\"|*?~<>^()[]{}$\\\n\r%", c)) {
+ flags |= T_ESCAPE_SHELL_CMD;
+ }
+#else
+ if (c && strchr("&;`'\"|*?~<>^()[]{}$\\\n", c)) {
+ flags |= T_ESCAPE_SHELL_CMD;
+ }
+#endif
+
+ if (!isalnum(c) && !strchr("$-_.+!*'(),:@&=~", c)) {
+ flags |= T_ESCAPE_PATH_SEGMENT;
+ }
+
+ if (!isalnum(c) && !strchr("$-_.+!*'(),:@&=/~", c)) {
+ flags |= T_OS_ESCAPE_PATH;
+ }
+
+ if (!isalnum(c) && !strchr(".-*_ ", c)) {
+ flags |= T_ESCAPE_URLENCODED;
+ }
+
+ /* For logging, escape all control characters,
+ * double quotes (because they delimit the request in the log file)
+ * backslashes (because we use backslash for escaping)
+ * and 8-bit chars with the high bit set
+ */
+ if (c && (!isprint(c) || c == '"' || c == '\\' || iscntrl(c))) {
+ flags |= T_ESCAPE_ECHO;
+ }
+
+ if (strchr("<>&\"", c)) {
+ flags |= T_ESCAPE_XML;
+ }
+
+ /* LDAP DN escaping (RFC4514) */
+ if (!isprint(c) || strchr("\"+,;<>\\", c)) {
+ flags |= T_ESCAPE_LDAP_DN;
+ }
+
+ /* LDAP filter escaping (RFC4515) */
+ if (!isprint(c) || strchr("*()\\", c)) {
+ flags |= T_ESCAPE_LDAP_FILTER;
+ }
+
+ printf("%u%c", flags, (c < 255) ? ',' : ' ');
+ }
+
+ printf("\n};\n");
+
+ return 0;
+}