mirror of
https://github.com/morgan9e/systemd
synced 2026-04-15 08:56:15 +09:00
03e17cbe6e
Various functions in log.h are only used by asserts, and there's enough assertion related stuff in macro.h to justify a separate header which also makes it easier to avoid circular dependencies. Let's introduce assert-util.h and an accompanying fundamental header and move all the assertion related stuff over there. PROJECT_FILE is moved over to macro.h.
74 lines
4.0 KiB
C
74 lines
4.0 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
#pragma once
|
|
|
|
#include <printf.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "assert-util.h"
|
|
#include "macro.h"
|
|
|
|
_printf_(3, 4)
|
|
static inline char* snprintf_ok(char *buf, size_t len, const char *format, ...) {
|
|
va_list ap;
|
|
int r;
|
|
|
|
va_start(ap, format);
|
|
r = vsnprintf(buf, len, format, ap);
|
|
va_end(ap);
|
|
|
|
return r >= 0 && (size_t) r < len ? buf : NULL;
|
|
}
|
|
|
|
#define xsprintf(buf, fmt, ...) \
|
|
assert_message_se(snprintf_ok(buf, ELEMENTSOF(buf), fmt, ##__VA_ARGS__), "xsprintf: " #buf "[] must be big enough")
|
|
|
|
#define VA_FORMAT_ADVANCE(format, ap) \
|
|
do { \
|
|
int _argtypes[128]; \
|
|
size_t _i, _k; \
|
|
/* See https://github.com/google/sanitizers/issues/992 */ \
|
|
if (HAS_FEATURE_MEMORY_SANITIZER) \
|
|
memset(_argtypes, 0, sizeof(_argtypes)); \
|
|
_k = parse_printf_format((format), ELEMENTSOF(_argtypes), _argtypes); \
|
|
assert(_k < ELEMENTSOF(_argtypes)); \
|
|
for (_i = 0; _i < _k; _i++) { \
|
|
if (_argtypes[_i] & PA_FLAG_PTR) { \
|
|
(void) va_arg(ap, void*); \
|
|
continue; \
|
|
} \
|
|
\
|
|
switch (_argtypes[_i]) { \
|
|
case PA_INT: \
|
|
case PA_INT|PA_FLAG_SHORT: \
|
|
case PA_CHAR: \
|
|
(void) va_arg(ap, int); \
|
|
break; \
|
|
case PA_INT|PA_FLAG_LONG: \
|
|
(void) va_arg(ap, long int); \
|
|
break; \
|
|
case PA_INT|PA_FLAG_LONG_LONG: \
|
|
(void) va_arg(ap, long long int); \
|
|
break; \
|
|
case PA_WCHAR: \
|
|
(void) va_arg(ap, wchar_t); \
|
|
break; \
|
|
case PA_WSTRING: \
|
|
case PA_STRING: \
|
|
case PA_POINTER: \
|
|
(void) va_arg(ap, void*); \
|
|
break; \
|
|
case PA_FLOAT: \
|
|
case PA_DOUBLE: \
|
|
(void) va_arg(ap, double); \
|
|
break; \
|
|
case PA_DOUBLE|PA_FLAG_LONG_DOUBLE: \
|
|
(void) va_arg(ap, long double); \
|
|
break; \
|
|
default: \
|
|
assert_not_reached(); \
|
|
} \
|
|
} \
|
|
} while (false)
|