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/*
* extended printf functions and specifiers
*
* Copyright (C) 2010 by James Maki
*
* Author: James Maki <jmaki@multitech.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <alloca.h>
#include "xprintf.h"
#include "log.h"
#if HAVE_REGISTER_PRINTF_SPECIFIER
int print_buffer_inspect_arginfo(const struct printf_info *info, size_t n, int *argtypes, int *size)
#else
int print_buffer_inspect_arginfo(const struct printf_info *info, size_t n, int *argtypes)
#endif
{
if (n > 0) {
argtypes[0] = PA_POINTER;
#if HAVE_REGISTER_PRINTF_SPECIFIER
size[0] = sizeof(void *);
#endif
}
return 1;
}
static const char *__char_inspect[] = {
"\\x00", "\\x01", "\\x02", "\\x03",
"\\x04", "\\x05", "\\x06", "\\a",
"\\b", "\\t", "\\n", "\\v",
"\\f", "\\r", "\\x0E", "\\x0F",
"\\x10", "\\x11", "\\x12", "\\x13",
"\\x14", "\\x15", "\\x16", "\\x17",
"\\x18", "\\x19", "\\x1A", "\\x1B",
"\\x1C", "\\x1D", "\\x1E", "\\x1F",
" ", "!", "\\\"", "#",
"$", "%", "&", "'",
"(", ")", "*", "+",
",", "-", ".", "/",
"0", "1", "2", "3",
"4", "5", "6", "7",
"8", "9", ":", ";",
"<", "=", ">", "?",
"@", "A", "B", "C",
"D", "E", "F", "G",
"H", "I", "J", "K",
"L", "M", "N", "O",
"P", "Q", "R", "S",
"T", "U", "V", "W",
"X", "Y", "Z", "[",
"\\\\", "]", "^", "_",
"`", "a", "b", "c",
"d", "e", "f", "g",
"h", "i", "j", "k",
"l", "m", "n", "o",
"p", "q", "r", "s",
"t", "u", "v", "w",
"x", "y", "z", "{",
"|", "}", "~", "\\x7F",
"\\x80", "\\x81", "\\x82", "\\x83",
"\\x84", "\\x85", "\\x86", "\\x87",
"\\x88", "\\x89", "\\x8A", "\\x8B",
"\\x8C", "\\x8D", "\\x8E", "\\x8F",
"\\x90", "\\x91", "\\x92", "\\x93",
"\\x94", "\\x95", "\\x96", "\\x97",
"\\x98", "\\x99", "\\x9A", "\\x9B",
"\\x9C", "\\x9D", "\\x9E", "\\x9F",
"\\xA0", "\\xA1", "\\xA2", "\\xA3",
"\\xA4", "\\xA5", "\\xA6", "\\xA7",
"\\xA8", "\\xA9", "\\xAA", "\\xAB",
"\\xAC", "\\xAD", "\\xAE", "\\xAF",
"\\xB0", "\\xB1", "\\xB2", "\\xB3",
"\\xB4", "\\xB5", "\\xB6", "\\xB7",
"\\xB8", "\\xB9", "\\xBA", "\\xBB",
"\\xBC", "\\xBD", "\\xBE", "\\xBF",
"\\xC0", "\\xC1", "\\xC2", "\\xC3",
"\\xC4", "\\xC5", "\\xC6", "\\xC7",
"\\xC8", "\\xC9", "\\xCA", "\\xCB",
"\\xCC", "\\xCD", "\\xCE", "\\xCF",
"\\xD0", "\\xD1", "\\xD2", "\\xD3",
"\\xD4", "\\xD5", "\\xD6", "\\xD7",
"\\xD8", "\\xD9", "\\xDA", "\\xDB",
"\\xDC", "\\xDD", "\\xDE", "\\xDF",
"\\xE0", "\\xE1", "\\xE2", "\\xE3",
"\\xE4", "\\xE5", "\\xE6", "\\xE7",
"\\xE8", "\\xE9", "\\xEA", "\\xEB",
"\\xEC", "\\xED", "\\xEE", "\\xEF",
"\\xF0", "\\xF1", "\\xF2", "\\xF3",
"\\xF4", "\\xF5", "\\xF6", "\\xF7",
"\\xF8", "\\xF9", "\\xFA", "\\xFB",
"\\xFC", "\\xFD", "\\xFE", "\\xFF",
};
int print_buffer_inspect(FILE *stream, const struct printf_info *info, const void *const *args)
{
int i;
int total;
char *arg;
char *buf;
int prec = info->prec;
arg = (char *) *((const char **) (args[0]));
if (prec < 0) {
prec = strlen(arg);
}
total = 0;
for (i = 0; i < prec; i++) {
total += strlen(__char_inspect[((unsigned char *) arg)[i]]);
}
buf = alloca(total + 1);
if (!buf) {
return -1;
}
*buf = '\0';
for (i = 0; i < prec; i++) {
strcat(buf, __char_inspect[((unsigned char *) arg)[i]]);
}
total = fprintf(stream, "%*s", (info->left ? -info->width : info->width), buf);
return total;
}
#if HAVE_REGISTER_PRINTF_SPECIFIER
int print_buffer_bin_arginfo(const struct printf_info *info, size_t n, int *argtypes, int *size)
#else
int print_buffer_bin_arginfo(const struct printf_info *info, size_t n, int *argtypes)
#endif
{
if (n > 0) {
argtypes[0] = PA_POINTER;
#if HAVE_REGISTER_PRINTF_SPECIFIER
size[0] = sizeof(void *);
#endif
}
return 1;
}
int print_buffer_bin(FILE *stream, const struct printf_info *info, const void *const *args)
{
int i;
int j;
int total;
char *arg;
unsigned char c;
int prec = info->prec;
char *buf;
arg = (char *) *((const char **) (args[0]));
if (prec < 0) {
prec = strlen(arg);
}
buf = alloca(prec * 8 + 1);
if (!buf) {
return -1;
}
total = 0;
for (i = 0; i < prec; i++) {
c = ((unsigned char *) arg)[i];
for (j = 7; j >= 0; j--) {
buf[total++] = (c & (1 << j)) ? '1' : '0';
}
}
if (total) {
buf[total] = '\0';
}
total = fprintf(stream, "%*s", (info->left ? -info->width : info->width), buf);
return total;
}
int xprintf_init()
{
#if HAVE_REGISTER_PRINTF_SPECIFIER
register_printf_specifier(XPRINTF_INSPECT_SPEC, print_buffer_inspect,
print_buffer_inspect_arginfo);
register_printf_specifier(XPRINTF_BIN_SPEC, print_buffer_bin,
print_buffer_bin_arginfo);
#else
register_printf_function(XPRINTF_INSPECT_SPEC, print_buffer_inspect,
print_buffer_inspect_arginfo);
register_printf_function(XPRINTF_BIN_SPEC, print_buffer_bin,
print_buffer_bin_arginfo);
#endif
return 0;
}
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