My session.c doesnt work!

Hi, I dont know if this is the correct group, but anyway. As part of a school project I decided to develop a solution to security in php sessions. i've started playing with session.c (below) but whenever i call a script with session_start() on it it doesnt load, but a session file is created on the server (its empty) i;ve included below the code i've editied. its from v4.3.9 Please help me... cheers ------------------------------------------------------------------------------ static void php_session_initialize(TSRMLS_D) { char *vala; int vallen; if (!PS(mod)) { php_error_docref(NULL TSRMLS_CC, E_ERROR, "No storage module chosen - failed to initialize session."); return; } /* Open session handler first */ if (PS(mod)->s_open(&PS(mod_data), PS(save_path), PS(session_name) TSRMLS_CC) == FAILURE) { php_error_docref(NULL TSRMLS_CC, E_ERROR, "Failed to initialize storage module: %s (path: %s)", PS(mod)->s_name, PS(save_path)); return; } /* If there is no ID, use session module to create one */ if (!PS(id)) PS(id) = PS(mod)->s_create_sid(&PS(mod_data), NULL TSRMLS_CC); /* Read data */ /* Question: if you create a SID here, should you also try to read data? * I'm not sure, but while not doing so will remove one session operation * it could prove usefull for those sites which wish to have "default" * session information */ //php_session_track_init(TSRMLS_C); zval *session_vars = NULL; /* Unconditionally destroy existing arrays -- possible dirty data */ zend_hash_del(&EG(symbol_table), "HTTP_SESSION_VARS", sizeof("HTTP_SESSION_VARS")); zend_hash_del(&EG(symbol_table), "_SESSION", sizeof("_SESSION")); MAKE_STD_ZVAL(session_vars); array_init(session_vars); PS(http_session_vars) = session_vars; ZEND_SET_GLOBAL_VAR_WITH_LENGTH("HTTP_SESSION_VARS", sizeof("HTTP_SESSION_VARS"), PS(http_session_vars), 2, 1); ZEND_SET_GLOBAL_VAR_WITH_LENGTH("_SESSION", sizeof("_SESSION"), PS(http_session_vars), 2, 1); if (PS(mod)->s_read(&PS(mod_data), PS(id), &vala, &vallen TSRMLS_CC) == SUCCESS) { char *secondline = (char *)calloc(sizeof(secondline), strlen(vala) + 1 ); char *val = (char *)calloc(sizeof(val), strlen(vala) + 1 ); sscanf(vala, "%s\n%s", val, secondline); php_session_decode(val, vallen TSRMLS_CC); efree(val); efree(vala); efree(secondline); } } ----------------------------------------------------------------------------------------------------------------------------------------------------------------- static void php_session_save_current_state(TSRMLS_D) { int ret = FAILURE; IF_SESSION_VARS() { if (PS(bug_compat) && !PG(register_globals)) { HashTable *ht = Z_ARRVAL_P(PS(http_session_vars)); HashPosition pos; zval **val; int do_warn = 0; zend_hash_internal_pointer_reset_ex(ht, &pos); while (zend_hash_get_current_data_ex(ht, (void **) &val, &pos) != FAILURE) { if (Z_TYPE_PP(val) == IS_NULL) { if (migrate_global(ht, &pos TSRMLS_CC)) do_warn = 1; } zend_hash_move_forward_ex(ht, &pos); } if (do_warn && PS(bug_compat_warn)) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively."); } } if (PS(mod_data)) { char *val; int vallen; val = php_session_encode(&vallen TSRMLS_CC); char *sert_s_name = (char *)calloc(sizeof(char), (strlen(PS(session_name)) + 1)); char *sert_s_id = (char *)calloc(sizeof(char), (strlen(PS(id)) + 1)); char *sert; char sert_s_space = '='; strcpy(sert_s_name, PS(session_name)); strcpy(sert_s_id, PS(id)); sert = (char *)calloc(sizeof(char), (strlen(val) + strlen(sert_s_name) + strlen(sert_s_id) + 1 + 2)); /* 1 is for tmp_s_space and 2 is for \r\n*/ sprintf(sert, "%s=%s;\n%s", sert_s_name, sert_s_id, val ); if (sert) { ret = PS(mod)->s_write(&PS(mod_data), PS(id), sert, strlen(sert) TSRMLS_CC); efree(sert); efree(sert_s_name); efree(sert_s_id); efree(val); } else { ret = PS(mod)->s_write(&PS(mod_data), PS(id), "", 0 TSRMLS_CC); } } if (ret == FAILURE) php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to write session data (%s). Please " "verify that the current setting of session.save_path " "is correct (%s)", PS(mod)->s_name, PS(save_path)); } if (PS(mod_data)) PS(mod)->s_close(&PS(mod_data) TSRMLS_CC); } ------------------------------------------------------------------------------------------------------------------------------------------------------------------