]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
15a5e950 LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Lennart Poettering | |
15a5e950 LP |
8 | ***/ |
9 | ||
10 | #include <printf.h> | |
11 | #include <stdarg.h> | |
12 | #include <stdio.h> | |
13 | #include <sys/types.h> | |
14 | ||
15 | #include "macro.h" | |
16 | ||
73fc96c8 ZJS |
17 | #define snprintf_ok(buf, len, fmt, ...) \ |
18 | ((size_t) snprintf(buf, len, fmt, __VA_ARGS__) < (len)) | |
15a5e950 | 19 | |
73fc96c8 ZJS |
20 | #define xsprintf(buf, fmt, ...) \ |
21 | assert_message_se(snprintf_ok(buf, ELEMENTSOF(buf), fmt, __VA_ARGS__), "xsprintf: " #buf "[] must be big enough") | |
15a5e950 LP |
22 | |
23 | #define VA_FORMAT_ADVANCE(format, ap) \ | |
24 | do { \ | |
25 | int _argtypes[128]; \ | |
26 | size_t _i, _k; \ | |
27 | _k = parse_printf_format((format), ELEMENTSOF(_argtypes), _argtypes); \ | |
28 | assert(_k < ELEMENTSOF(_argtypes)); \ | |
29 | for (_i = 0; _i < _k; _i++) { \ | |
30 | if (_argtypes[_i] & PA_FLAG_PTR) { \ | |
31 | (void) va_arg(ap, void*); \ | |
32 | continue; \ | |
33 | } \ | |
34 | \ | |
35 | switch (_argtypes[_i]) { \ | |
36 | case PA_INT: \ | |
37 | case PA_INT|PA_FLAG_SHORT: \ | |
38 | case PA_CHAR: \ | |
39 | (void) va_arg(ap, int); \ | |
40 | break; \ | |
41 | case PA_INT|PA_FLAG_LONG: \ | |
42 | (void) va_arg(ap, long int); \ | |
43 | break; \ | |
44 | case PA_INT|PA_FLAG_LONG_LONG: \ | |
45 | (void) va_arg(ap, long long int); \ | |
46 | break; \ | |
47 | case PA_WCHAR: \ | |
48 | (void) va_arg(ap, wchar_t); \ | |
49 | break; \ | |
50 | case PA_WSTRING: \ | |
51 | case PA_STRING: \ | |
52 | case PA_POINTER: \ | |
53 | (void) va_arg(ap, void*); \ | |
54 | break; \ | |
55 | case PA_FLOAT: \ | |
56 | case PA_DOUBLE: \ | |
57 | (void) va_arg(ap, double); \ | |
58 | break; \ | |
59 | case PA_DOUBLE|PA_FLAG_LONG_DOUBLE: \ | |
60 | (void) va_arg(ap, long double); \ | |
61 | break; \ | |
62 | default: \ | |
63 | assert_not_reached("Unknown format string argument."); \ | |
64 | } \ | |
65 | } \ | |
9ed794a3 | 66 | } while (false) |