From 86e3db11d2d38fe233a1fa5f2c7c7ea25e8f763b Mon Sep 17 00:00:00 2001 From: SATO Kentaro Date: Wed, 18 Dec 2019 04:03:42 +0900 Subject: [PATCH] Fix #78402: pcntl_signal() misleading error message An error message can be misleading when a handler passed to pcntl_signal() is not callable. --- ext/pcntl/pcntl.c | 7 +++++-- ext/pcntl/tests/pcntl_signal.phpt | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/ext/pcntl/pcntl.c b/ext/pcntl/pcntl.c index c6236f96636a8..11f6164eb8fb8 100644 --- a/ext/pcntl/pcntl.c +++ b/ext/pcntl/pcntl.c @@ -1005,6 +1005,7 @@ PHP_FUNCTION(pcntl_signal) zval *handle; zend_long signo; zend_bool restart_syscalls = 1; + char *error = NULL; if (zend_parse_parameters(ZEND_NUM_ARGS(), "lz|b", &signo, &handle, &restart_syscalls) == FAILURE) { return; @@ -1043,13 +1044,15 @@ PHP_FUNCTION(pcntl_signal) RETURN_TRUE; } - if (!zend_is_callable(handle, 0, NULL)) { + if (!zend_is_callable_ex(handle, NULL, 0, NULL, NULL, &error)) { zend_string *func_name = zend_get_callable_name(handle); PCNTL_G(last_error) = EINVAL; - php_error_docref(NULL, E_WARNING, "%s is not a callable function name error", ZSTR_VAL(func_name)); + php_error_docref(NULL, E_WARNING, "Specified handler \"%s\" is not callable (%s)", ZSTR_VAL(func_name), error); zend_string_release_ex(func_name, 0); + efree(error); RETURN_FALSE; } + ZEND_ASSERT(!error); /* Add the function name to our signal table */ handle = zend_hash_index_update(&PCNTL_G(php_signal_table), signo, handle); diff --git a/ext/pcntl/tests/pcntl_signal.phpt b/ext/pcntl/tests/pcntl_signal.phpt index a6441935c1101..953ff54eefd01 100644 --- a/ext/pcntl/tests/pcntl_signal.phpt +++ b/ext/pcntl/tests/pcntl_signal.phpt @@ -42,6 +42,6 @@ bool(false) Warning: pcntl_signal(): Invalid signal %s bool(false) -Warning: pcntl_signal(): not callable is not a callable function name error in %s +Warning: pcntl_signal(): Specified handler "not callable" is not callable (%s) in %s bool(false) ok