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| author | Sebastien Bacher <seb128@ubuntu.com> | 2019-01-25 11:26:25 +0100 |
|---|---|---|
| committer | Sebastien Bacher <seb128@ubuntu.com> | 2019-01-25 11:26:25 +0100 |
| commit | f54a568880bf47c2ea54c9b30d291156b34d6539 (patch) | |
| tree | aab9bb44b306da7651e8caf38bbab5cfeeb81b7d /shared/systemd/src/basic/stdio-util.h | |
| parent | e8ac7dacdcf4b38addef4f8ac6ab038f9d29582c (diff) | |
| parent | bbae86d3d2997a853ca0365e8eb7a3ca7489ee09 (diff) | |
Update upstream source from tag 'upstream/1.15.2'
Update to upstream version '1.15.2' with Debian dir b4be4b7cfce96679a31cb9d423107789761e3b49
Diffstat (limited to 'shared/systemd/src/basic/stdio-util.h')
| -rw-r--r-- | shared/systemd/src/basic/stdio-util.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/shared/systemd/src/basic/stdio-util.h b/shared/systemd/src/basic/stdio-util.h new file mode 100644 index 00000000..dc67b6e7 --- /dev/null +++ b/shared/systemd/src/basic/stdio-util.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include <printf.h> +#include <stdarg.h> +#include <stdio.h> +#include <sys/types.h> + +#include "macro.h" +#include "util.h" + +#define snprintf_ok(buf, len, fmt, ...) \ + ((size_t) snprintf(buf, len, fmt, __VA_ARGS__) < (len)) + +#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) \ + zero(_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("Unknown format string argument."); \ + } \ + } \ +} while (false) |