hyperlight-libc 0.16.0

This crate provides picolibc for Hyperlight guests. It builds the picolibc library and generates bindings to the libc types and functions.
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/*
FUNCTION
        <<unctrl>>---get printable representation of a character

INDEX
        unctrl
INDEX
        unctrllen

SYNOPSIS
        #include <unctrl.h>
        char *unctrl(int <[c]>);
        int unctrllen(int <[c]>);

DESCRIPTION
<<unctrl>> is a macro which returns the printable representation of <[c]>
as a string.
<<unctrllen>> is a macro which returns the length of the printable
representation of <[c]>.

RETURNS
<<unctrl>> returns a string of the printable representation of <[c]>.

<<unctrllen>> returns the length of the string which is the printable
representation of <[c]>.

PORTABILITY
<<unctrl>> and <<unctrllen>> are not ANSI C.

No supporting OS subroutines are required.
*/

/*
 * Copyright (c) 1981, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)unctrl.c	8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */

const char * const __unctrl[256] = {
    "^@",   "^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",   "^[",   "^\\",  "^]",   "^~",   "^_",   " ",    "!",    "\"",   "#",
    "$",    "%",    "&",    "'",    "(",    ")",    "*",    "+",    ",",    "-",    ".",    "/",
    "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",    "{",    "|",    "}",    "~",    "^?",

    "0x80", "0x81", "0x82", "0x83", "0x84", "0x85", "0x86", "0x87", "0x88", "0x89", "0x8a", "0x8b",
    "0x8c", "0x8d", "0x8e", "0x8f", "0x90", "0x91", "0x92", "0x93", "0x94", "0x95", "0x96", "0x97",
    "0x98", "0x99", "0x9a", "0x9b", "0x9c", "0x9d", "0x9e", "0x9f", "0xa0", "0xa1", "0xa2", "0xa3",
    "0xa4", "0xa5", "0xa6", "0xa7", "0xa8", "0xa9", "0xaa", "0xab", "0xac", "0xad", "0xae", "0xaf",
    "0xb0", "0xb1", "0xb2", "0xb3", "0xb4", "0xb5", "0xb6", "0xb7", "0xb8", "0xb9", "0xba", "0xbb",
    "0xbc", "0xbd", "0xbe", "0xbf", "0xc0", "0xc1", "0xc2", "0xc3", "0xc4", "0xc5", "0xc6", "0xc7",
    "0xc8", "0xc9", "0xca", "0xcb", "0xcc", "0xcd", "0xce", "0xcf", "0xd0", "0xd1", "0xd2", "0xd3",
    "0xd4", "0xd5", "0xd6", "0xd7", "0xd8", "0xd9", "0xda", "0xdb", "0xdc", "0xdd", "0xde", "0xdf",
    "0xe0", "0xe1", "0xe2", "0xe3", "0xe4", "0xe5", "0xe6", "0xe7", "0xe8", "0xe9", "0xea", "0xeb",
    "0xec", "0xed", "0xee", "0xef", "0xf0", "0xf1", "0xf2", "0xf3", "0xf4", "0xf5", "0xf6", "0xf7",
    "0xf8", "0xf9", "0xfa", "0xfb", "0xfc", "0xfd", "0xfe", "0xff",
};

const char __unctrllen[256] = {
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
};