Fix percent-encoding problems (issue #79)

src/civetweb.c

@@ -3762,7 +3762,7 @@ int mg_url_encode(const char *src, char *dst, size_t dst_len)
             pos[2] = hex[(* (const unsigned char *) src) & 0xf];
             pos += 2;
         } else {
-            return -1;
+            break;
         }
     }
 
@@ -4504,7 +4504,7 @@ static void prepare_cgi_environment(struct mg_connection *conn,
                                     const char *prog,
                                     struct cgi_env_block *blk)
 {
-    const char *s, *slash;
+    const char *s;
     struct vec var_vec;
     char *p, src_addr[IP_ADDR_STR_LEN];
     int  i;
@@ -4532,14 +4532,14 @@ static void prepare_cgi_environment(struct mg_connection *conn,
     addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
 
     /* SCRIPT_NAME */
-    addenv(blk, "SCRIPT_NAME=%.*s",
-           strlen(conn->request_info.uri) - ((conn->path_info == NULL) ? 0 : strlen(conn->path_info)),
+    addenv(blk, "SCRIPT_NAME=%.*s",
+           strlen(conn->request_info.uri) - ((conn->path_info == NULL) ? 0 : strlen(conn->path_info)),
            conn->request_info.uri);
 
     addenv(blk, "SCRIPT_FILENAME=%s", prog);
-    if (conn->path_info == NULL) {
-        addenv(blk, "PATH_TRANSLATED=%s", conn->ctx->config[DOCUMENT_ROOT]);
-    } else {
+    if (conn->path_info == NULL) {
+        addenv(blk, "PATH_TRANSLATED=%s", conn->ctx->config[DOCUMENT_ROOT]);
+    } else {
         addenv(blk, "PATH_TRANSLATED=%s%s", conn->ctx->config[DOCUMENT_ROOT], conn->path_info);
     }