show me the header please

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/fcgi-proxy-dev@365824 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/modules/proxy/mod_proxy_fcgi.c b/modules/proxy/mod_proxy_fcgi.c
index fc32f04927b48e45245bf215bdf6f142cfeae7c5..8cf96258c336dfe604313748680c9d6b2a2a6c00 100644 (file)
--- a/modules/proxy/mod_proxy_fcgi.c
+++ b/modules/proxy/mod_proxy_fcgi.c
@@ -311,6 +311,53 @@ typedef struct {
     apr_pool_t *scratch_pool;
 } proxy_fcgi_baton_t;
 
+static void dump_header_to_log( request_rec *r, unsigned char fheader[], apr_size_t length)
+{
+    char asc_line[20];
+    char hex_line[60];
+    int i=0;
+    apr_size_t posn=0;
+    memset(asc_line,0,sizeof(asc_line));
+    memset(hex_line,0,sizeof(hex_line));
+    while (posn < length) {
+        unsigned char c = fheader[posn]; 
+        char hexval[3];
+        if (i >=  20) {
+            i=0;
+            ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "HEADER: %s %s",
+                    asc_line,
+                    hex_line);
+            memset(asc_line,0,sizeof(asc_line));
+            memset(hex_line,0,sizeof(hex_line));
+        }
+        if (isprint(c)) {
+            asc_line[i] = c;
+        }
+        else {
+            asc_line[i] = '.';
+        }
+        if ( ( c >> 4 )  >= 10) {
+            hex_line[i*3] = 'a' + ((c >>4 ) - 10);
+        }
+        else {
+            hex_line[i*3] = '0' + (c >>4 );
+        }
+
+        if ( ( c & 0x0F )  >= 10) {
+            hex_line[i*3+1] = 'a' + ((c & 0x0F ) - 10);
+        }
+        else {
+            hex_line[i*3+1] = '0' + (c & 0xF );
+        }
+
+        hex_line[i*3+2] = ' ';
+        i++;
+        posn++;
+    }
+    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server, "HEADER: %s %s",
+                    asc_line,
+                    hex_line);
+}
 static apr_status_t dispatch(proxy_conn_rec *conn, request_rec *r,
                              int request_id)
 {
@@ -429,9 +476,12 @@ static apr_status_t dispatch(proxy_conn_rec *conn, request_rec *r,
                 break;
             }
 
+
+            dump_header_to_log( r, fheader, readbuflen);
             if (readbuflen != FCGI_HEADER_LEN) {
                 ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server,
-                             "proxy: FCGI: Failed to read entire header");
+                             "proxy: FCGI: Failed to read entire header got %d wanted %d", 
+                             readbuflen, FCGI_HEADER_LEN);
                 rv = APR_EINVAL;
                 break;
             }