Remove use of GNU extention strnlen().

Fix CHANGES.

CHANGES

@@ -1,5 +1,10 @@
 
 ?? ??? 2007 - 2.2.0-trunk
+-------------------------
+
+ * Removed strnlen() calls for non-GNU platforms.
+
+11 May 2007 - 2.2.0-dev1
 -------------------------
 
  * Add SecGeoLookupsDb, @geoLookups and GEO collection to support
@@ -18,10 +23,10 @@
  * Added experimental variables RESPONSE_CONTENT_LENGTH, RESPONSE_CONTENT_TYPE,
    and RESPONSE_CONTENT_ENCODING.
 
- * Added experimental support for content injection. Directive SecContentInjection
-   (On|Off) controls whether injection is taking place. Actions "prepend"
-   and "append" inject content when executed. Do note that it is your
-   responsibility to make sure the response is of the appropriate
+ * Added experimental support for content injection. Directive
+   SecContentInjection (On|Off) controls whether injection is taking place.
+   Actions "prepend" and "append" inject content when executed. Do note that
+   it is your responsibility to make sure the response is of the appropriate
    content type (e.g. HTML, plain text, etc).
 
  * Added string comparison operators with support for macro expansion:
@@ -32,7 +37,7 @@
 
  * Removed support for %0 - %9 capture macros as they were incorrectly
    expanding url encoded values.  Use %{TX.0} - %{TX.9} instead.
-	
+
  * Added t:length to transform a value to its character length.
 
  * Added t:trimLeft, t:trimRight, t:trim to remove whitespace
@@ -58,25 +63,21 @@
    and/or counting operator in the debug log.
 
 
-05 Apr 2007 - 2.1.1-rc2
------------------------
+11 Apr 2007 - 2.1.1
+-------------------
 
  * Add the PCRE_DOLLAR_ENDONLY option when compiling regular expression
    for the @rx operator and variables.
-  
+ 
  * Really set PCRE_DOTALL option when compiling the regular expression
    for the @rx operator as the docs state.
-
-
-11 Mar 2007 - 2.1.1-rc1
------------------------
-
+ 
  * Fixed potential memory corruption when expanding macros.
 
- * Fixed error when a collection var was fetched in the same second as creation
-   by setting the rate to zero.
+ * Fixed error when a collection was retrieved from storage in the same second
+   as creation by setting the rate to zero.
 
- * Fixed ASCIIZ (NUL) parsing for application/x-www-form-urlencoded forms
+ * Fixed ASCIIZ (NUL) parsing for application/x-www-form-urlencoded forms.
 
  * Fixed the faulty REQUEST_FILENAME variable, which used to change
    the internal Apache structures by mistake.

apache2/msc_geo.c

@@ -228,6 +228,23 @@ static int db_open(directory_config *dcfg, char **error_msg)
     return 1;
 }
 
+static int field_length(const char *field, int maxlen)
+{
+    int i;
+
+    if (field == NULL) {
+        return 0;
+    }
+
+    for (i = 0; i < maxlen; i++) {
+        if (field[i] == '\0') {
+            break;
+        }
+    }
+
+    return i;
+}
+
 /**
  * Initialise Geo data structure
  */
@@ -375,21 +392,21 @@ int geo_lookup(modsec_rec *msr, geo_rec *georec, const char *target, char **erro
         remaining -= rec_offset;
 
         /* Region */
-        field_len = strnlen((const char *)cbuf+rec_offset,remaining);
+        field_len = field_length((const char *)cbuf+rec_offset, remaining);
         msr_log(msr, 9, "GEO: region=\"%.*s\"", ((field_len+1)*4), log_escape_raw(msr->mp, cbuf, sizeof(cbuf))+(rec_offset*4));
         georec->region = apr_pstrmemdup(msr->mp, (const char *)cbuf+rec_offset, (remaining));
         rec_offset += field_len + 1;
         remaining -= field_len + 1;
         
         /* City */
-        field_len = strnlen((const char *)cbuf+rec_offset,remaining);
+        field_len = field_length((const char *)cbuf+rec_offset, remaining);
         msr_log(msr, 9, "GEO: city=\"%.*s\"", ((field_len+1)*4), log_escape_raw(msr->mp, cbuf, sizeof(cbuf))+(rec_offset*4));
         georec->city = apr_pstrmemdup(msr->mp, (const char *)cbuf+rec_offset, (remaining));
         rec_offset += field_len + 1;
         remaining -= field_len + 1;
         
         /* Postal Code */
-        field_len = strnlen((const char *)cbuf+rec_offset,remaining);
+        field_len = field_length((const char *)cbuf+rec_offset, remaining);
         msr_log(msr, 9, "GEO: postal_code=\"%.*s\"", ((field_len+1)*4), log_escape_raw(msr->mp, cbuf, sizeof(cbuf))+(rec_offset*4));
         georec->postal_code = apr_pstrmemdup(msr->mp, (const char *)cbuf+rec_offset, (remaining));
         rec_offset += field_len + 1;