Cleanup php_posix_group_to_array() (#18497)

This function can be static, and the error checks are pointless:
1. It's guaranteed that the return value is an array by now,
   as it is always preceded by array_init(return_value).
2. The null check for g is pointless as every callee already
   handles that in a better way.

Author: nielsdos

ext/posix/posix.c

@@ -659,16 +659,12 @@ PHP_FUNCTION(posix_mknod)
 
 /* Takes a pointer to posix group and a pointer to an already initialized ZVAL
  * array container and fills the array with the posix group member data. */
-int php_posix_group_to_array(struct group *g, zval *array_group) /* {{{ */
+static void php_posix_group_to_array(struct group *g, zval *array_group) /* {{{ */
 {
 	zval array_members;
 	int count;
 
-	if (NULL == g)
-		return 0;
-
-	if (array_group == NULL || Z_TYPE_P(array_group) != IS_ARRAY)
-		return 0;
+	ZEND_ASSERT(Z_TYPE_P(array_group) == IS_ARRAY);
 
 	array_init(&array_members);
 	zend_hash_real_init_packed(Z_ARRVAL(array_members));
@@ -691,7 +687,6 @@ int php_posix_group_to_array(struct group *g, zval *array_group) /* {{{ */
 	}
 	zend_hash_str_update(Z_ARRVAL_P(array_group), "members", sizeof("members")-1, &array_members);
 	add_assoc_long(array_group, "gid", g->gr_gid);
-	return 1;
 }
 /* }}} */
 
@@ -833,11 +828,7 @@ PHP_FUNCTION(posix_getgrnam)
 #endif
 	array_init(return_value);
 
-	if (!php_posix_group_to_array(g, return_value)) {
-		zend_array_destroy(Z_ARR_P(return_value));
-		php_error_docref(NULL, E_WARNING, "Unable to convert posix group to array");
-		RETVAL_FALSE;
-	}
+	php_posix_group_to_array(g, return_value);
 #if defined(ZTS) && defined(HAVE_GETGRNAM_R) && defined(_SC_GETGR_R_SIZE_MAX)
 	efree(buf);
 #endif
@@ -895,11 +886,7 @@ PHP_FUNCTION(posix_getgrgid)
 #endif
 	array_init(return_value);
 
-	if (!php_posix_group_to_array(g, return_value)) {
-		zend_array_destroy(Z_ARR_P(return_value));
-		php_error_docref(NULL, E_WARNING, "Unable to convert posix group struct to array");
-		RETVAL_FALSE;
-	}
+	php_posix_group_to_array(g, return_value);
 #if defined(ZTS) && defined(HAVE_GETGRGID_R) && defined(_SC_GETGR_R_SIZE_MAX)
 	efree(grbuf);
 #endif