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 29 #ifndef _PRINTF_H_ 30 #define _PRINTF_H_ 31 32 #include <stdio.h> 33 #include <wchar.h> 34 35 /* 36 * The API defined by glibc allows a renderer to take multiple arguments 37 * This is obviously usable for things like (ptr+len) pairs etc. 38 * But the do not actually provide support for it at the end of the day, 39 * they offer only one argument to the arginfo function, but do accept 40 * >1 returns, although the do not check the types of those arguments 41 * argument 42 * Be compatible for now. 43 */ 44 #define __PRINTFMAXARG 2 45 46 struct printf_info { 47 /* GLIBC compatible */ 48 int prec; 49 int width; 50 wchar_t spec; 51 unsigned is_long_double; 52 unsigned is_char; 53 unsigned is_short; 54 unsigned is_long; 55 unsigned alt; 56 unsigned space; 57 unsigned left; 58 unsigned showsign; 59 unsigned group; 60 unsigned extra; 61 unsigned wide; 62 wchar_t pad; 63 64 /* FreeBSD extensions */ 65 66 unsigned is_quad; 67 unsigned is_intmax; 68 unsigned is_ptrdiff; 69 unsigned is_size; 70 71 /* private */ 72 int sofar; 73 unsigned get_width; 74 unsigned get_prec; 75 const char *begin; 76 const char *end; 77 void *arg[__PRINTFMAXARG]; 78 }; 79 80 enum { 81 PA_INT = (1 << 0), /* int */ 82 PA_CHAR = (1 << 1), /* int, cast to char */ 83 PA_WCHAR = (1 << 2), /* wide char */ 84 PA_STRING = (1 << 3), /* const char * (with '\0') */ 85 PA_WSTRING = (1 << 4), /* const wchar_t * */ 86 PA_POINTER = (1 << 5), /* void * */ 87 PA_FLOAT = (1 << 6), /* float */ 88 PA_DOUBLE = (1 << 7) /* double */ 89 }; 90 91 #define PA_FLAG_MASK 0xff0000 92 #define PA_FLAG_LONG_LONG (1 << 16) 93 #define PA_FLAG_LONG (1 << 17) 94 #define PA_FLAG_SHORT (1 << 18) 95 #define PA_FLAG_PTR (1 << 19) 96 #define PA_FLAG_QUAD (1 << 20) 97 #define PA_FLAG_INTMAX (1 << 21) 98 #define PA_FLAG_SIZE (1 << 22) 99 #define PA_FLAG_PTRDIFF (1 << 23) 100 #define PA_FLAG_LONG_DOUBLE PA_FLAG_LONG_LONG 101 102 typedef int printf_arginfo_function(const struct printf_info *, size_t, int *); 103 typedef int printf_function(FILE *, const struct printf_info *, const void *const *); 104 105 /* FreeBSD extension */ 106 struct __printf_io; 107 typedef int printf_render(struct __printf_io *, const struct printf_info *, const void *const *); 108 109 /* vprintf.c */ 110 extern const char __lowercase_hex[17]; 111 extern const char __uppercase_hex[17]; 112 113 void __printf_flush(struct __printf_io *io); 114 int __printf_puts(struct __printf_io *io, const void *ptr, int len); 115 int __printf_pad(struct __printf_io *io, int n, int zero); 116 int __printf_out(struct __printf_io *io, const struct printf_info *pi, const void *ptr, int len); 117 118 int __xvprintf(FILE *fp, const char *fmt0, va_list ap); 119 extern int __use_xprintf; 120 121 /* GLIBC compat */ 122 int register_printf_function(int spec, printf_function *render, printf_arginfo_function *arginfo); 123 124 /* FreeBSD */ 125 int register_printf_render(int spec, printf_render *render, printf_arginfo_function *arginfo); 126 int register_printf_render_std(const char *specs); 127 128 /* vprintf_errno.c */ 129 printf_arginfo_function __printf_arginfo_errno; 130 printf_render __printf_render_errno; 131 132 /* vprintf_float.c */ 133 printf_arginfo_function __printf_arginfo_float; 134 printf_render __printf_render_float; 135 136 /* vprintf_hexdump.c */ 137 printf_arginfo_function __printf_arginfo_hexdump; 138 printf_render __printf_render_hexdump; 139 140 /* vprintf_int.c */ 141 printf_arginfo_function __printf_arginfo_ptr; 142 printf_arginfo_function __printf_arginfo_int; 143 printf_render __printf_render_ptr; 144 printf_render __printf_render_int; 145 146 /* vprintf_quoute.c */ 147 printf_arginfo_function __printf_arginfo_quote; 148 printf_render __printf_render_quote; 149 150 /* vprintf_str.c */ 151 printf_arginfo_function __printf_arginfo_chr; 152 printf_render __printf_render_chr; 153 printf_arginfo_function __printf_arginfo_str; 154 printf_render __printf_render_str; 155 156 /* vprintf_time.c */ 157 printf_arginfo_function __printf_arginfo_time; 158 printf_render __printf_render_time; 159 160 /* vprintf_vis.c */ 161 printf_arginfo_function __printf_arginfo_vis; 162 printf_render __printf_render_vis; 163 164 #endif /* !_PRINTF_H */ 165