1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005 Poul-Henning Kamp 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _PRINTF_H_ 32 #define _PRINTF_H_ 33 34 #include <stdio.h> 35 #include <wchar.h> 36 37 /* 38 * The API defined by glibc allows a renderer to take multiple arguments 39 * This is obviously usable for things like (ptr+len) pairs etc. 40 * But the do not actually provide support for it at the end of the day, 41 * they offer only one argument to the arginfo function, but do accept 42 * >1 returns, although the do not check the types of those arguments 43 * argument 44 * Be compatible for now. 45 */ 46 #define __PRINTFMAXARG 2 47 48 struct printf_info { 49 /* GLIBC compatible */ 50 int prec; 51 int width; 52 wchar_t spec; 53 unsigned is_long_double; 54 unsigned is_char; 55 unsigned is_short; 56 unsigned is_long; 57 unsigned alt; 58 unsigned space; 59 unsigned left; 60 unsigned showsign; 61 unsigned group; 62 unsigned extra; 63 unsigned wide; 64 wchar_t pad; 65 66 /* FreeBSD extensions */ 67 68 unsigned is_quad; 69 unsigned is_intmax; 70 unsigned is_ptrdiff; 71 unsigned is_size; 72 73 /* private */ 74 int sofar; 75 unsigned get_width; 76 unsigned get_prec; 77 const char *begin; 78 const char *end; 79 void *arg[__PRINTFMAXARG]; 80 }; 81 82 enum { 83 PA_INT = (1 << 0), /* int */ 84 PA_CHAR = (1 << 1), /* int, cast to char */ 85 PA_WCHAR = (1 << 2), /* wide char */ 86 PA_STRING = (1 << 3), /* const char * (with '\0') */ 87 PA_WSTRING = (1 << 4), /* const wchar_t * */ 88 PA_POINTER = (1 << 5), /* void * */ 89 PA_FLOAT = (1 << 6), /* float */ 90 PA_DOUBLE = (1 << 7) /* double */ 91 }; 92 93 #define PA_FLAG_MASK 0xff0000 94 #define PA_FLAG_LONG_LONG (1 << 16) 95 #define PA_FLAG_LONG (1 << 17) 96 #define PA_FLAG_SHORT (1 << 18) 97 #define PA_FLAG_PTR (1 << 19) 98 #define PA_FLAG_QUAD (1 << 20) 99 #define PA_FLAG_INTMAX (1 << 21) 100 #define PA_FLAG_SIZE (1 << 22) 101 #define PA_FLAG_PTRDIFF (1 << 23) 102 #define PA_FLAG_LONG_DOUBLE PA_FLAG_LONG_LONG 103 104 typedef int printf_arginfo_function(const struct printf_info *, size_t, int *); 105 typedef int printf_function(FILE *, const struct printf_info *, const void *const *); 106 107 /* FreeBSD extension */ 108 struct __printf_io; 109 typedef int printf_render(struct __printf_io *, const struct printf_info *, const void *const *); 110 111 /* vprintf.c */ 112 extern const char __lowercase_hex[17]; 113 extern const char __uppercase_hex[17]; 114 115 void __printf_flush(struct __printf_io *io); 116 int __printf_puts(struct __printf_io *io, const void *ptr, int len); 117 int __printf_pad(struct __printf_io *io, int n, int zero); 118 int __printf_out(struct __printf_io *io, const struct printf_info *pi, const void *ptr, int len); 119 120 int __xvprintf(FILE *fp, const char *fmt0, va_list ap); 121 extern int __use_xprintf; 122 123 /* GLIBC compat */ 124 int register_printf_function(int spec, printf_function *render, printf_arginfo_function *arginfo); 125 126 /* FreeBSD */ 127 int register_printf_render(int spec, printf_render *render, printf_arginfo_function *arginfo); 128 int register_printf_render_std(const char *specs); 129 130 /* vprintf_errno.c */ 131 printf_arginfo_function __printf_arginfo_errno; 132 printf_render __printf_render_errno; 133 134 /* vprintf_float.c */ 135 printf_arginfo_function __printf_arginfo_float; 136 printf_render __printf_render_float; 137 138 /* vprintf_hexdump.c */ 139 printf_arginfo_function __printf_arginfo_hexdump; 140 printf_render __printf_render_hexdump; 141 142 /* vprintf_int.c */ 143 printf_arginfo_function __printf_arginfo_ptr; 144 printf_arginfo_function __printf_arginfo_int; 145 printf_render __printf_render_ptr; 146 printf_render __printf_render_int; 147 148 /* vprintf_quoute.c */ 149 printf_arginfo_function __printf_arginfo_quote; 150 printf_render __printf_render_quote; 151 152 /* vprintf_str.c */ 153 printf_arginfo_function __printf_arginfo_chr; 154 printf_render __printf_render_chr; 155 printf_arginfo_function __printf_arginfo_str; 156 printf_render __printf_render_str; 157 158 /* vprintf_time.c */ 159 printf_arginfo_function __printf_arginfo_time; 160 printf_render __printf_render_time; 161 162 /* vprintf_vis.c */ 163 printf_arginfo_function __printf_arginfo_vis; 164 printf_render __printf_render_vis; 165 166 #endif /* !_PRINTF_H */ 167