fix ya.make

11 files changed, 1 insertions, 2137 deletions

diff --git a/contrib/libs/libc_compat/CMakeLists.txt b/contrib/libs/libc_compat/CMakeLists.txt
index fc7b1ee73c..a681d385f3 100644
--- a/contrib/libs/libc_compat/CMakeLists.txt
+++ b/contrib/libs/libc_compat/CMakeLists.txt
@@ -8,6 +8,6 @@
 
 if (APPLE)
   include(CMakeLists.darwin.txt)
-elseif (UNIX AND NOT APPLE)
+elseif (UNIX)
   include(CMakeLists.linux.txt)
 endif()
diff --git a/contrib/libs/libc_compat/collate.h b/contrib/libs/libc_compat/collate.h
deleted file mode 100644
index e69de29bb2..0000000000
--- a/contrib/libs/libc_compat/collate.h
+++ /dev/null
diff --git a/contrib/libs/libc_compat/glob.c b/contrib/libs/libc_compat/glob.c
deleted file mode 100644
index 00be637158..0000000000
--- a/contrib/libs/libc_compat/glob.c
+++ /dev/null
@@ -1,1127 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Guido van Rossum.
- *
- * Copyright (c) 2011 The FreeBSD Foundation
- * All rights reserved.
- * Portions of this software were developed by David Chisnall
- * under sponsorship from the FreeBSD Foundation.
- *
- * 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.
- */
-
-#include <sys/cdefs.h>
-__SCCSID("@(#)glob.c	8.3 (Berkeley) 10/13/93");
-__FBSDID("$FreeBSD$");
-
-/*
- * glob(3) -- a superset of the one defined in POSIX 1003.2.
- *
- * The [!...] convention to negate a range is supported (SysV, Posix, ksh).
- *
- * Optional extra services, controlled by flags not defined by POSIX:
- *
- * GLOB_QUOTE:
- *	Escaping convention: \ inhibits any special meaning the following
- *	character might have (except \ at end of string is retained).
- * GLOB_MAGCHAR:
- *	Set in gl_flags if pattern contained a globbing character.
- * GLOB_NOMAGIC:
- *	Same as GLOB_NOCHECK, but it will only append pattern if it did
- *	not contain any magic characters.  [Used in csh style globbing]
- * GLOB_ALTDIRFUNC:
- *	Use alternately specified directory access functions.
- * GLOB_TILDE:
- *	expand ~user/foo to the /home/dir/of/user/foo
- * GLOB_BRACE:
- *	expand {1,2}{a,b} to 1a 1b 2a 2b
- * gl_matchc:
- *	Number of matches in the current invocation of glob.
- */
-
-/*
- * Some notes on multibyte character support:
- * 1. Patterns with illegal byte sequences match nothing - even if
- *    GLOB_NOCHECK is specified.
- * 2. Illegal byte sequences in filenames are handled by treating them as
- *    single-byte characters with a values of such bytes of the sequence
- *    cast to wchar_t.
- * 3. State-dependent encodings are not currently supported.
- */
-
-#include <sys/param.h>
-#include <sys/stat.h>
-
-#include <ctype.h>
-#include <dirent.h>
-#include <errno.h>
-#include "glob.h"
-#include <limits.h>
-#include <pwd.h>
-#include <stdint.h>
-#include <stdio.h>
-#include "stdlib.h"
-#include <string.h>
-#include "unistd.h"
-#include <wchar.h>
-
-#ifdef USE_LOCALE_COLLATE
-#include "collate.h"
-#endif
-
-/*
- * glob(3) expansion limits. Stop the expansion if any of these limits
- * is reached. This caps the runtime in the face of DoS attacks. See
- * also CVE-2010-2632
- */
-#define	GLOB_LIMIT_BRACE	128	/* number of brace calls */
-#define	GLOB_LIMIT_PATH		65536	/* number of path elements */
-#define	GLOB_LIMIT_READDIR	16384	/* number of readdirs */
-#define	GLOB_LIMIT_STAT		1024	/* number of stat system calls */
-#define	GLOB_LIMIT_STRING	ARG_MAX	/* maximum total size for paths */
-
-struct glob_limit {
-	size_t	l_brace_cnt;
-	size_t	l_path_lim;
-	size_t	l_readdir_cnt;	
-	size_t	l_stat_cnt;	
-	size_t	l_string_cnt;
-};
-
-#define	DOT		L'.'
-#define	EOS		L'\0'
-#define	LBRACKET	L'['
-#define	NOT		L'!'
-#define	QUESTION	L'?'
-#define	QUOTE		L'\\'
-#define	RANGE		L'-'
-#define	RBRACKET	L']'
-#define	SEP		L'/'
-#define	STAR		L'*'
-#define	TILDE		L'~'
-#define	LBRACE		L'{'
-#define	RBRACE		L'}'
-#define	COMMA		L','
-
-#define	M_QUOTE		0x8000000000ULL
-#define	M_PROTECT	0x4000000000ULL
-#define	M_MASK		0xffffffffffULL
-#define	M_CHAR		0x00ffffffffULL
-
-typedef uint_fast64_t Char;
-
-#define	CHAR(c)		((Char)((c)&M_CHAR))
-#define	META(c)		((Char)((c)|M_QUOTE))
-#define	UNPROT(c)	((c) & ~M_PROTECT)
-#define	M_ALL		META(L'*')
-#define	M_END		META(L']')
-#define	M_NOT		META(L'!')
-#define	M_ONE		META(L'?')
-#define	M_RNG		META(L'-')
-#define	M_SET		META(L'[')
-#define	ismeta(c)	(((c)&M_QUOTE) != 0)
-#ifdef DEBUG
-#define	isprot(c)	(((c)&M_PROTECT) != 0)
-#endif
-
-static int	 compare(const void *, const void *);
-static int	 g_Ctoc(const Char *, char *, size_t);
-static int	 g_lstat(Char *, struct stat *, glob_t *);
-static DIR	*g_opendir(Char *, glob_t *);
-static const Char *g_strchr(const Char *, wchar_t);
-#ifdef notdef
-static Char	*g_strcat(Char *, const Char *);
-#endif
-static int	 g_stat(Char *, struct stat *, glob_t *);
-static int	 glob0(const Char *, glob_t *, struct glob_limit *,
-    const char *);
-static int	 glob1(Char *, glob_t *, struct glob_limit *);
-static int	 glob2(Char *, Char *, Char *, Char *, glob_t *,
-    struct glob_limit *);
-static int	 glob3(Char *, Char *, Char *, Char *, Char *, glob_t *,
-    struct glob_limit *);
-static int	 globextend(const Char *, glob_t *, struct glob_limit *,
-    const char *);
-static const Char *
-		 globtilde(const Char *, Char *, size_t, glob_t *);
-static int	 globexp0(const Char *, glob_t *, struct glob_limit *,
-    const char *);
-static int	 globexp1(const Char *, glob_t *, struct glob_limit *);
-static int	 globexp2(const Char *, const Char *, glob_t *,
-    struct glob_limit *);
-static int	 globfinal(glob_t *, struct glob_limit *, size_t,
-    const char *);
-static int	 match(Char *, Char *, Char *);
-static int	 err_nomatch(glob_t *, struct glob_limit *, const char *);
-static int	 err_aborted(glob_t *, int, char *);
-#ifdef DEBUG
-static void	 qprintf(const char *, Char *);
-#endif
-
-int
-glob(const char * __restrict pattern, int flags,
-	 int (*errfunc)(const char *, int), glob_t * __restrict pglob)
-{
-	struct glob_limit limit = { 0, 0, 0, 0, 0 };
-	const char *patnext;
-	Char *bufnext, *bufend, patbuf[MAXPATHLEN], prot;
-	mbstate_t mbs;
-	wchar_t wc;
-	size_t clen;
-	int too_long;
-
-	patnext = pattern;
-	if (!(flags & GLOB_APPEND)) {
-		pglob->gl_pathc = 0;
-		pglob->gl_pathv = NULL;
-		if (!(flags & GLOB_DOOFFS))
-			pglob->gl_offs = 0;
-	}
-	if (flags & GLOB_LIMIT) {
-		limit.l_path_lim = pglob->gl_matchc;
-		if (limit.l_path_lim == 0)
-			limit.l_path_lim = GLOB_LIMIT_PATH;
-	}
-	pglob->gl_flags = flags & ~GLOB_MAGCHAR;
-	pglob->gl_errfunc = errfunc;
-	pglob->gl_matchc = 0;
-
-	bufnext = patbuf;
-	bufend = bufnext + MAXPATHLEN - 1;
-	too_long = 1;
-	if (flags & GLOB_NOESCAPE) {
-		memset(&mbs, 0, sizeof(mbs));
-		while (bufnext <= bufend) {
-			clen = mbrtowc(&wc, patnext, MB_LEN_MAX, &mbs);
-			if (clen == (size_t)-1 || clen == (size_t)-2)
-				return (err_nomatch(pglob, &limit, pattern));
-			else if (clen == 0) {
-				too_long = 0;
-				break;
-			}
-			*bufnext++ = wc;
-			patnext += clen;
-		}
-	} else {
-		/* Protect the quoted characters. */
-		memset(&mbs, 0, sizeof(mbs));
-		while (bufnext <= bufend) {
-			if (*patnext == '\\') {
-				if (*++patnext == '\0') {
-					*bufnext++ = QUOTE;
-					continue;
-				}
-				prot = M_PROTECT;
-			} else
-				prot = 0;
-			clen = mbrtowc(&wc, patnext, MB_LEN_MAX, &mbs);
-			if (clen == (size_t)-1 || clen == (size_t)-2)
-				return (err_nomatch(pglob, &limit, pattern));
-			else if (clen == 0) {
-				too_long = 0;
-				break;
-			}
-			*bufnext++ = wc | prot;
-			patnext += clen;
-		}
-	}
-	if (too_long)
-		return (err_nomatch(pglob, &limit, pattern));
-	*bufnext = EOS;
-
-	if (flags & GLOB_BRACE)
-	    return (globexp0(patbuf, pglob, &limit, pattern));
-	else
-	    return (glob0(patbuf, pglob, &limit, pattern));
-}
-
-static int
-globexp0(const Char *pattern, glob_t *pglob, struct glob_limit *limit,
-    const char *origpat) {
-	int rv;
-	size_t oldpathc;
-
-	/* Protect a single {}, for find(1), like csh */
-	if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS) {
-		if ((pglob->gl_flags & GLOB_LIMIT) &&
-		    limit->l_brace_cnt++ >= GLOB_LIMIT_BRACE) {
-			errno = E2BIG;
-			return (GLOB_NOSPACE);
-		}
-		return (glob0(pattern, pglob, limit, origpat));
-	}
-
-	oldpathc = pglob->gl_pathc;
-
-	if ((rv = globexp1(pattern, pglob, limit)) != 0)
-		return rv;
-
-	return (globfinal(pglob, limit, oldpathc, origpat));
-}
-
-/*
- * Expand recursively a glob {} pattern. When there is no more expansion
- * invoke the standard globbing routine to glob the rest of the magic
- * characters
- */
-static int
-globexp1(const Char *pattern, glob_t *pglob, struct glob_limit *limit)
-{
-	const Char* ptr;
-
-	if ((ptr = g_strchr(pattern, LBRACE)) != NULL) {
-		if ((pglob->gl_flags & GLOB_LIMIT) &&
-		    limit->l_brace_cnt++ >= GLOB_LIMIT_BRACE) {
-			errno = E2BIG;
-			return (GLOB_NOSPACE);
-		}
-		return (globexp2(ptr, pattern, pglob, limit));
-	}
-
-	return (glob0(pattern, pglob, limit, NULL));
-}
-
-
-/*
- * Recursive brace globbing helper. Tries to expand a single brace.
- * If it succeeds then it invokes globexp1 with the new pattern.
- * If it fails then it tries to glob the rest of the pattern and returns.
- */
-static int
-globexp2(const Char *ptr, const Char *pattern, glob_t *pglob,
-    struct glob_limit *limit)
-{
-	int     i, rv;
-	Char   *lm, *ls;
-	const Char *pe, *pm, *pm1, *pl;
-	Char    patbuf[MAXPATHLEN];
-
-	/* copy part up to the brace */
-	for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++)
-		continue;
-	*lm = EOS;
-	ls = lm;
-
-	/* Find the balanced brace */
-	for (i = 0, pe = ++ptr; *pe != EOS; pe++)
-		if (*pe == LBRACKET) {
-			/* Ignore everything between [] */
-			for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++)
-				continue;
-			if (*pe == EOS) {
-				/*
-				 * We could not find a matching RBRACKET.
-				 * Ignore and just look for RBRACE
-				 */
-				pe = pm;
-			}
-		}
-		else if (*pe == LBRACE)
-			i++;
-		else if (*pe == RBRACE) {
-			if (i == 0)
-				break;
-			i--;
-		}
-
-	/* Non matching braces; just glob the pattern */
-	if (i != 0 || *pe == EOS)
-		return (glob0(pattern, pglob, limit, NULL));
-
-	for (i = 0, pl = pm = ptr; pm <= pe; pm++)
-		switch (*pm) {
-		case LBRACKET:
-			/* Ignore everything between [] */
-			for (pm1 = pm++; *pm != RBRACKET && *pm != EOS; pm++)
-				continue;
-			if (*pm == EOS) {
-				/*
-				 * We could not find a matching RBRACKET.
-				 * Ignore and just look for RBRACE
-				 */
-				pm = pm1;
-			}
-			break;
-
-		case LBRACE:
-			i++;
-			break;
-
-		case RBRACE:
-			if (i) {
-			    i--;
-			    break;
-			}
-			/* FALLTHROUGH */
-		case COMMA:
-			if (i && *pm == COMMA)
-				break;
-			else {
-				/* Append the current string */
-				for (lm = ls; (pl < pm); *lm++ = *pl++)
-					continue;
-				/*
-				 * Append the rest of the pattern after the
-				 * closing brace
-				 */
-				for (pl = pe + 1; (*lm++ = *pl++) != EOS;)
-					continue;
-
-				/* Expand the current pattern */
-#ifdef DEBUG
-				qprintf("globexp2:", patbuf);
-#endif
-				rv = globexp1(patbuf, pglob, limit);
-				if (rv)
-					return (rv);
-
-				/* move after the comma, to the next string */
-				pl = pm + 1;
-			}
-			break;
-
-		default:
-			break;
-		}
-	return (0);
-}
-
-
-
-/*
- * expand tilde from the passwd file.
- */
-static const Char *
-globtilde(const Char *pattern, Char *patbuf, size_t patbuf_len, glob_t *pglob)
-{
-	struct passwd *pwd;
-	char *h, *sc;
-	const Char *p;
-	Char *b, *eb;
-	wchar_t wc;
-	wchar_t wbuf[MAXPATHLEN];
-	wchar_t *wbufend, *dc;
-	size_t clen;
-	mbstate_t mbs;
-	int too_long;
-
-	if (*pattern != TILDE || !(pglob->gl_flags & GLOB_TILDE))
-		return (pattern);
-
-	/* 
-	 * Copy up to the end of the string or / 
-	 */
-	eb = &patbuf[patbuf_len - 1];
-	for (p = pattern + 1, b = patbuf;
-	    b < eb && *p != EOS && UNPROT(*p) != SEP; *b++ = *p++)
-		continue;
-
-	if (*p != EOS && UNPROT(*p) != SEP)
-		return (NULL);
-
-	*b = EOS;
-	h = NULL;
-
-	if (patbuf[0] == EOS) {
-		/*
-		 * handle a plain ~ or ~/ by expanding $HOME first (iff
-		 * we're not running setuid or setgid) and then trying
-		 * the password file
-		 */
-		if (issetugid() != 0 ||
-		    (h = getenv("HOME")) == NULL) {
-			if (((h = getlogin()) != NULL &&
-			     (pwd = getpwnam(h)) != NULL) ||
-			    (pwd = getpwuid(getuid())) != NULL)
-				h = pwd->pw_dir;
-			else
-				return (pattern);
-		}
-	}
-	else {
-		/*
-		 * Expand a ~user
-		 */
-		if (g_Ctoc(patbuf, (char *)wbuf, sizeof(wbuf)))
-			return (NULL);
-		if ((pwd = getpwnam((char *)wbuf)) == NULL)
-			return (pattern);
-		else
-			h = pwd->pw_dir;
-	}
-
-	/* Copy the home directory */
-	dc = wbuf;
-	sc = h;
-	wbufend = wbuf + MAXPATHLEN - 1;
-	too_long = 1;
-	memset(&mbs, 0, sizeof(mbs));
-	while (dc <= wbufend) {
-		clen = mbrtowc(&wc, sc, MB_LEN_MAX, &mbs);
-		if (clen == (size_t)-1 || clen == (size_t)-2) {
-			/* XXX See initial comment #2. */
-			wc = (unsigned char)*sc;
-			clen = 1;
-			memset(&mbs, 0, sizeof(mbs));
-		}
-		if ((*dc++ = wc) == EOS) {
-			too_long = 0;
-			break;
-		}
-		sc += clen;
-	}
-	if (too_long)
-		return (NULL);
-
-	dc = wbuf;
-	for (b = patbuf; b < eb && *dc != EOS; *b++ = *dc++ | M_PROTECT)
-		continue;
-	if (*dc != EOS)
-		return (NULL);
-
-	/* Append the rest of the pattern */
-	if (*p != EOS) {
-		too_long = 1;
-		while (b <= eb) {
-			if ((*b++ = *p++) == EOS) {
-				too_long = 0;
-				break;
-			}
-		}
-		if (too_long)
-			return (NULL);
-	} else
-		*b = EOS;
-
-	return (patbuf);
-}
-
-
-/*
- * The main glob() routine: compiles the pattern (optionally processing
- * quotes), calls glob1() to do the real pattern matching, and finally
- * sorts the list (unless unsorted operation is requested).  Returns 0
- * if things went well, nonzero if errors occurred.
- */
-static int
-glob0(const Char *pattern, glob_t *pglob, struct glob_limit *limit,
-    const char *origpat) {
-	const Char *qpatnext;
-	int err;
-	size_t oldpathc;
-	Char *bufnext, c, patbuf[MAXPATHLEN];
-
-	qpatnext = globtilde(pattern, patbuf, MAXPATHLEN, pglob);
-	if (qpatnext == NULL) {
-		errno = E2BIG;
-		return (GLOB_NOSPACE);
-	}
-	oldpathc = pglob->gl_pathc;
-	bufnext = patbuf;
-
-	/* We don't need to check for buffer overflow any more. */
-	while ((c = *qpatnext++) != EOS) {
-		switch (c) {
-		case LBRACKET:
-			c = *qpatnext;
-			if (c == NOT)
-				++qpatnext;
-			if (*qpatnext == EOS ||
-			    g_strchr(qpatnext+1, RBRACKET) == NULL) {
-				*bufnext++ = LBRACKET;
-				if (c == NOT)
-					--qpatnext;
-				break;
-			}
-			*bufnext++ = M_SET;
-			if (c == NOT)
-				*bufnext++ = M_NOT;
-			c = *qpatnext++;
-			do {
-				*bufnext++ = CHAR(c);
-				if (*qpatnext == RANGE &&
-				    (c = qpatnext[1]) != RBRACKET) {
-					*bufnext++ = M_RNG;
-					*bufnext++ = CHAR(c);
-					qpatnext += 2;
-				}
-			} while ((c = *qpatnext++) != RBRACKET);
-			pglob->gl_flags |= GLOB_MAGCHAR;
-			*bufnext++ = M_END;
-			break;
-		case QUESTION:
-			pglob->gl_flags |= GLOB_MAGCHAR;
-			*bufnext++ = M_ONE;
-			break;
-		case STAR:
-			pglob->gl_flags |= GLOB_MAGCHAR;
-			/* collapse adjacent stars to one,
-			 * to ensure "**" at the end continues to match the
-			 * empty string
-			 */
-			if (bufnext == patbuf || bufnext[-1] != M_ALL)
-			    *bufnext++ = M_ALL;
-			break;
-		default:
-			*bufnext++ = CHAR(c);
-			break;
-		}
-	}
-	*bufnext = EOS;
-#ifdef DEBUG
-	qprintf("glob0:", patbuf);
-#endif
-
-	if ((err = glob1(patbuf, pglob, limit)) != 0)
-		return(err);
-
-	if (origpat != NULL)
-		return (globfinal(pglob, limit, oldpathc, origpat));
-
-	return (0);
-}
-
-static int
-globfinal(glob_t *pglob, struct glob_limit *limit, size_t oldpathc,
-    const char *origpat) {
-	if (pglob->gl_pathc == oldpathc)
-		return (err_nomatch(pglob, limit, origpat));
-
-	if (!(pglob->gl_flags & GLOB_NOSORT))
-		qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
-		    pglob->gl_pathc - oldpathc, sizeof(char *), compare);
-
-	return (0);
-}
-
-static int
-compare(const void *p, const void *q)
-{
-	return (strcoll(*(char **)p, *(char **)q));
-}
-
-static int
-glob1(Char *pattern, glob_t *pglob, struct glob_limit *limit)
-{
-	Char pathbuf[MAXPATHLEN];
-
-	/* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
-	if (*pattern == EOS)
-		return (0);
-	return (glob2(pathbuf, pathbuf, pathbuf + MAXPATHLEN - 1,
-	    pattern, pglob, limit));
-}
-
-/*
- * The functions glob2 and glob3 are mutually recursive; there is one level
- * of recursion for each segment in the pattern that contains one or more
- * meta characters.
- */
-static int
-glob2(Char *pathbuf, Char *pathend, Char *pathend_last, Char *pattern,
-      glob_t *pglob, struct glob_limit *limit)
-{
-	struct stat sb;
-	Char *p, *q;
-	int anymeta;
-
-	/*
-	 * Loop over pattern segments until end of pattern or until
-	 * segment with meta character found.
-	 */
-	for (anymeta = 0;;) {
-		if (*pattern == EOS) {		/* End of pattern? */
-			*pathend = EOS;
-			if (g_lstat(pathbuf, &sb, pglob))
-				return (0);
-
-			if ((pglob->gl_flags & GLOB_LIMIT) &&
-			    limit->l_stat_cnt++ >= GLOB_LIMIT_STAT) {
-				errno = E2BIG;
-				return (GLOB_NOSPACE);
-			}
-			if ((pglob->gl_flags & GLOB_MARK) &&
-			    UNPROT(pathend[-1]) != SEP &&
-			    (S_ISDIR(sb.st_mode) ||
-			    (S_ISLNK(sb.st_mode) &&
-			    g_stat(pathbuf, &sb, pglob) == 0 &&
-			    S_ISDIR(sb.st_mode)))) {
-				if (pathend + 1 > pathend_last) {
-					errno = E2BIG;
-					return (GLOB_NOSPACE);
-				}
-				*pathend++ = SEP;
-				*pathend = EOS;
-			}
-			++pglob->gl_matchc;
-			return (globextend(pathbuf, pglob, limit, NULL));
-		}
-
-		/* Find end of next segment, copy tentatively to pathend. */
-		q = pathend;
-		p = pattern;
-		while (*p != EOS && UNPROT(*p) != SEP) {
-			if (ismeta(*p))
-				anymeta = 1;
-			if (q + 1 > pathend_last) {
-				errno = E2BIG;
-				return (GLOB_NOSPACE);
-			}
-			*q++ = *p++;
-		}
-
-		if (!anymeta) {		/* No expansion, do next segment. */
-			pathend = q;
-			pattern = p;
-			while (UNPROT(*pattern) == SEP) {
-				if (pathend + 1 > pathend_last) {
-					errno = E2BIG;
-					return (GLOB_NOSPACE);
-				}
-				*pathend++ = *pattern++;
-			}
-		} else			/* Need expansion, recurse. */
-			return (glob3(pathbuf, pathend, pathend_last, pattern,
-			    p, pglob, limit));
-	}
-	/* NOTREACHED */
-}
-
-static int
-glob3(Char *pathbuf, Char *pathend, Char *pathend_last,
-      Char *pattern, Char *restpattern,
-      glob_t *pglob, struct glob_limit *limit)
-{
-	struct dirent *dp;
-	DIR *dirp;
-	int err, too_long, saverrno, saverrno2;
-	char buf[MAXPATHLEN + MB_LEN_MAX - 1];
-
-	struct dirent *(*readdirfunc)(DIR *);
-
-	if (pathend > pathend_last) {
-		errno = E2BIG;
-		return (GLOB_NOSPACE);
-	}
-	*pathend = EOS;
-	if (pglob->gl_errfunc != NULL &&
-	    g_Ctoc(pathbuf, buf, sizeof(buf))) {
-		errno = E2BIG;
-		return (GLOB_NOSPACE);
-	}
-
-	saverrno = errno;
-	errno = 0;
-	if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
-		if (errno == ENOENT || errno == ENOTDIR)
-			return (0);
-		err = err_aborted(pglob, errno, buf);
-		if (errno == 0)
-			errno = saverrno;
-		return (err);
-	}
-
-	err = 0;
-
-	/* pglob->gl_readdir takes a void *, fix this manually */
-	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-		readdirfunc = (struct dirent *(*)(DIR *))pglob->gl_readdir;
-	else
-		readdirfunc = readdir;
-
-	errno = 0;
-	/* Search directory for matching names. */
-	while ((dp = (*readdirfunc)(dirp)) != NULL) {
-		char *sc;
-		Char *dc;
-		wchar_t wc;
-		size_t clen;
-		mbstate_t mbs;
-
-		if ((pglob->gl_flags & GLOB_LIMIT) &&
-		    limit->l_readdir_cnt++ >= GLOB_LIMIT_READDIR) {
-			errno = E2BIG;
-			err = GLOB_NOSPACE;
-			break;
-		}
-
-		/* Initial DOT must be matched literally. */
-		if (dp->d_name[0] == '.' && UNPROT(*pattern) != DOT) {
-			errno = 0;
-			continue;
-		}
-		memset(&mbs, 0, sizeof(mbs));
-		dc = pathend;
-		sc = dp->d_name;
-		too_long = 1;
-		while (dc <= pathend_last) {
-			clen = mbrtowc(&wc, sc, MB_LEN_MAX, &mbs);
-			if (clen == (size_t)-1 || clen == (size_t)-2) {
-				/* XXX See initial comment #2. */
-				wc = (unsigned char)*sc;
-				clen = 1;
-				memset(&mbs, 0, sizeof(mbs));
-			}
-			if ((*dc++ = wc) == EOS) {
-				too_long = 0;
-				break;
-			}
-			sc += clen;
-		}
-		if (too_long && (err = err_aborted(pglob, ENAMETOOLONG,
-		    buf))) {
-			errno = ENAMETOOLONG;
-			break;
-		}
-		if (too_long || !match(pathend, pattern, restpattern)) {
-			*pathend = EOS;
-			errno = 0;
-			continue;
-		}
-		if (errno == 0)
-			errno = saverrno;
-		err = glob2(pathbuf, --dc, pathend_last, restpattern,
-		    pglob, limit);
-		if (err)
-			break;
-		errno = 0;
-	}
-
-	saverrno2 = errno;
-	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-		(*pglob->gl_closedir)(dirp);
-	else
-		closedir(dirp);
-	errno = saverrno2;
-
-	if (err)
-		return (err);
-
-	if (dp == NULL && errno != 0 &&
-	    (err = err_aborted(pglob, errno, buf)))
-		return (err);
-
-	if (errno == 0)
-		errno = saverrno;
-	return (0);
-}
-
-
-/*
- * Extend the gl_pathv member of a glob_t structure to accommodate a new item,
- * add the new item, and update gl_pathc.
- *
- * This assumes the BSD realloc, which only copies the block when its size
- * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic
- * behavior.
- *
- * Return 0 if new item added, error code if memory couldn't be allocated.
- *
- * Invariant of the glob_t structure:
- *	Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and
- *	gl_pathv points to (gl_offs + gl_pathc + 1) items.
- */
-static int
-globextend(const Char *path, glob_t *pglob, struct glob_limit *limit,
-    const char *origpat)
-{
-	char **pathv;
-	size_t i, newn, len;
-	char *copy;
-	const Char *p;
-
-	if ((pglob->gl_flags & GLOB_LIMIT) &&
-	    pglob->gl_matchc > limit->l_path_lim) {
-		errno = E2BIG;
-		return (GLOB_NOSPACE);
-	}
-
-	newn = 2 + pglob->gl_pathc + pglob->gl_offs;
-	/* reallocarray(NULL, newn, size) is equivalent to malloc(newn*size). */
-	pathv = reallocarray(pglob->gl_pathv, newn, sizeof(*pathv));
-	if (pathv == NULL)
-		return (GLOB_NOSPACE);
-
-	if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
-		/* first time around -- clear initial gl_offs items */
-		pathv += pglob->gl_offs;
-		for (i = pglob->gl_offs + 1; --i > 0; )
-			*--pathv = NULL;
-	}
-	pglob->gl_pathv = pathv;
-
-	if (origpat != NULL)
-		copy = strdup(origpat);
-	else {
-		for (p = path; *p++ != EOS;)
-			continue;
-		len = MB_CUR_MAX * (size_t)(p - path); /* XXX overallocation */
-		if ((copy = malloc(len)) != NULL) {
-			if (g_Ctoc(path, copy, len)) {
-				free(copy);
-				errno = E2BIG;
-				return (GLOB_NOSPACE);
-			}
-		}
-	}
-	if (copy != NULL) {
-		limit->l_string_cnt += strlen(copy) + 1;
-		if ((pglob->gl_flags & GLOB_LIMIT) &&
-		    limit->l_string_cnt >= GLOB_LIMIT_STRING) {
-			free(copy);
-			errno = E2BIG;
-			return (GLOB_NOSPACE);
-		}
-		pathv[pglob->gl_offs + pglob->gl_pathc++] = copy;
-	}
-	pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
-	return (copy == NULL ? GLOB_NOSPACE : 0);
-}
-
-/*
- * pattern matching function for filenames.
- */
-static int
-match(Char *name, Char *pat, Char *patend)
-{
-	int ok, negate_range;
-	Char c, k, *nextp, *nextn;
-#ifdef USE_LOCALE_COLLATE
-	struct xlocale_collate *table =
-		(struct xlocale_collate*)__get_locale()->components[XLC_COLLATE];
-#endif
-
-	nextn = NULL;
-	nextp = NULL;
-
-	while (1) {
-		while (pat < patend) {
-			c = *pat++;
-			switch (c & M_MASK) {
-			case M_ALL:
-				if (pat == patend)
-					return (1);
-				if (*name == EOS)
-					return (0);
-				nextn = name + 1;
-				nextp = pat - 1;
-				break;
-			case M_ONE:
-				if (*name++ == EOS)
-					goto fail;
-				break;
-			case M_SET:
-				ok = 0;
-				if ((k = *name++) == EOS)
-					goto fail;
-				negate_range = ((*pat & M_MASK) == M_NOT);
-				if (negate_range != 0)
-					++pat;
-				while (((c = *pat++) & M_MASK) != M_END)
-					if ((*pat & M_MASK) == M_RNG) {
-#ifdef USE_LOCALE_COLLATE
-						if (table->__collate_load_error ?
-						    CHAR(c) <= CHAR(k) &&
-						    CHAR(k) <= CHAR(pat[1]) :
-						    __wcollate_range_cmp(CHAR(c),
-						    CHAR(k)) <= 0 &&
-						    __wcollate_range_cmp(CHAR(k),
-						    CHAR(pat[1])) <= 0)
-#else
-						if (c <= k && k <= pat[1])
-#endif
-							ok = 1;
-						pat += 2;
-					} else if (c == k)
-						ok = 1;
-				if (ok == negate_range)
-					goto fail;
-				break;
-			default:
-				if (*name++ != c)
-					goto fail;
-				break;
-			}
-		}
-		if (*name == EOS)
-			return (1);
-
-	fail:
-		if (nextn == NULL)
-			break;
-		pat = nextp;
-		name = nextn;
-	}
-	return (0);
-}
-
-/* Free allocated data belonging to a glob_t structure. */
-void
-globfree(glob_t *pglob)
-{
-	size_t i;
-	char **pp;
-
-	if (pglob->gl_pathv != NULL) {
-		pp = pglob->gl_pathv + pglob->gl_offs;
-		for (i = pglob->gl_pathc; i--; ++pp)
-			if (*pp)
-				free(*pp);
-		free(pglob->gl_pathv);
-		pglob->gl_pathv = NULL;
-	}
-}
-
-static DIR *
-g_opendir(Char *str, glob_t *pglob)
-{
-	char buf[MAXPATHLEN + MB_LEN_MAX - 1];
-
-	if (*str == EOS)
-		strcpy(buf, ".");
-	else {
-		if (g_Ctoc(str, buf, sizeof(buf))) {
-			errno = ENAMETOOLONG;
-			return (NULL);
-		}
-	}
-
-	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-		return ((*pglob->gl_opendir)(buf));
-
-	return (opendir(buf));
-}
-
-static int
-g_lstat(Char *fn, struct stat *sb, glob_t *pglob)
-{
-	char buf[MAXPATHLEN + MB_LEN_MAX - 1];
-
-	if (g_Ctoc(fn, buf, sizeof(buf))) {
-		errno = ENAMETOOLONG;
-		return (-1);
-	}
-	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-		return((*pglob->gl_lstat)(buf, sb));
-	return (lstat(buf, sb));
-}
-
-static int
-g_stat(Char *fn, struct stat *sb, glob_t *pglob)
-{
-	char buf[MAXPATHLEN + MB_LEN_MAX - 1];
-
-	if (g_Ctoc(fn, buf, sizeof(buf))) {
-		errno = ENAMETOOLONG;
-		return (-1);
-	}
-	if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-		return ((*pglob->gl_stat)(buf, sb));
-	return (stat(buf, sb));
-}
-
-static const Char *
-g_strchr(const Char *str, wchar_t ch)
-{
-
-	do {
-		if (*str == ch)
-			return (str);
-	} while (*str++);
-	return (NULL);
-}
-
-static int
-g_Ctoc(const Char *str, char *buf, size_t len)
-{
-	mbstate_t mbs;
-	size_t clen;
-
-	memset(&mbs, 0, sizeof(mbs));
-	while (len >= MB_CUR_MAX) {
-		clen = wcrtomb(buf, CHAR(*str), &mbs);
-		if (clen == (size_t)-1) {
-			/* XXX See initial comment #2. */
-			*buf = (char)CHAR(*str);
-			clen = 1;
-			memset(&mbs, 0, sizeof(mbs));
-		}
-		if (CHAR(*str) == EOS)
-			return (0);
-		str++;
-		buf += clen;
-		len -= clen;
-	}
-	return (1);
-}
-
-static int
-err_nomatch(glob_t *pglob, struct glob_limit *limit, const char *origpat) {
-	/*
-	 * If there was no match we are going to append the origpat
-	 * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified
-	 * and the origpat did not contain any magic characters
-	 * GLOB_NOMAGIC is there just for compatibility with csh.
-	 */
-	if ((pglob->gl_flags & GLOB_NOCHECK) ||
-	    ((pglob->gl_flags & GLOB_NOMAGIC) &&
-	    !(pglob->gl_flags & GLOB_MAGCHAR)))
-		return (globextend(NULL, pglob, limit, origpat));
-	return (GLOB_NOMATCH);
-}
-
-static int
-err_aborted(glob_t *pglob, int err, char *buf) {
-	if ((pglob->gl_errfunc != NULL && pglob->gl_errfunc(buf, err)) ||
-	    (pglob->gl_flags & GLOB_ERR))
-		return (GLOB_ABORTED);
-	return (0);
-}
-
-#ifdef DEBUG
-static void
-qprintf(const char *str, Char *s)
-{
-	Char *p;
-
-	(void)printf("%s\n", str);
-	if (s != NULL) {
-		for (p = s; *p != EOS; p++)
-			(void)printf("%c", (char)CHAR(*p));
-		(void)printf("\n");
-		for (p = s; *p != EOS; p++)
-			(void)printf("%c", (isprot(*p) ? '\\' : ' '));
-		(void)printf("\n");
-		for (p = s; *p != EOS; p++)
-			(void)printf("%c", (ismeta(*p) ? '_' : ' '));
-		(void)printf("\n");
-	}
-}
-#endif
diff --git a/contrib/libs/libc_compat/glob.h b/contrib/libs/libc_compat/glob.h
deleted file mode 100644
index 783ba51042..0000000000
--- a/contrib/libs/libc_compat/glob.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Guido van Rossum.
- *
- * 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.
- *
- *	@(#)glob.h	8.1 (Berkeley) 6/2/93
- * $FreeBSD$
- */
-
-#ifndef _GLOB_H_
-#define	_GLOB_H_
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-
-struct stat;
-typedef struct {
-	size_t gl_pathc;	/* Count of total paths so far. */
-	size_t gl_matchc;	/* Count of paths matching pattern. */
-	size_t gl_offs;		/* Reserved at beginning of gl_pathv. */
-	int gl_flags;		/* Copy of flags parameter to glob. */
-	char **gl_pathv;	/* List of paths matching pattern. */
-				/* Copy of errfunc parameter to glob. */
-	int (*gl_errfunc)(const char *, int);
-
-	/*
-	 * Alternate filesystem access methods for glob; replacement
-	 * versions of closedir(3), readdir(3), opendir(3), stat(2)
-	 * and lstat(2).
-	 */
-	void (*gl_closedir)(void *);
-	struct dirent *(*gl_readdir)(void *);
-	void *(*gl_opendir)(const char *);
-	int (*gl_lstat)(const char *, struct stat *);
-	int (*gl_stat)(const char *, struct stat *);
-} glob_t;
-
-// #if __POSIX_VISIBLE >= 199209
-/* Believed to have been introduced in 1003.2-1992 */
-#define	GLOB_APPEND	0x0001	/* Append to output from previous call. */
-#define	GLOB_DOOFFS	0x0002	/* Use gl_offs. */
-#define	GLOB_ERR	0x0004	/* Return on error. */
-#define	GLOB_MARK	0x0008	/* Append / to matching directories. */
-#define	GLOB_NOCHECK	0x0010	/* Return pattern itself if nothing matches. */
-#define	GLOB_NOSORT	0x0020	/* Don't sort. */
-#define	GLOB_NOESCAPE	0x2000	/* Disable backslash escaping. */
-
-/* Error values returned by glob(3) */
-#define	GLOB_NOSPACE	(-1)	/* Malloc call failed. */
-#define	GLOB_ABORTED	(-2)	/* Unignored error. */
-#define	GLOB_NOMATCH	(-3)	/* No match and GLOB_NOCHECK was not set. */
-#define	GLOB_NOSYS	(-4)	/* Obsolete: source comptability only. */
-// #endif /* __POSIX_VISIBLE >= 199209 */
-
-// #if __BSD_VISIBLE
-#define	GLOB_ALTDIRFUNC	0x0040	/* Use alternately specified directory funcs. */
-#define	GLOB_BRACE	0x0080	/* Expand braces ala csh. */
-#define	GLOB_MAGCHAR	0x0100	/* Pattern had globbing characters. */
-#define	GLOB_NOMAGIC	0x0200	/* GLOB_NOCHECK without magic chars (csh). */
-#define	GLOB_QUOTE	0x0400	/* Quote special chars with \. */
-#define	GLOB_TILDE	0x0800	/* Expand tilde names from the passwd file. */
-#define	GLOB_LIMIT	0x1000	/* limit number of returned paths */
-
-/* source compatibility, these are the old names */
-#define GLOB_MAXPATH	GLOB_LIMIT
-#define	GLOB_ABEND	GLOB_ABORTED
-// #endif /* __BSD_VISIBLE */
-
-__BEGIN_DECLS
-int	glob(const char * __restrict, int,
-	int (*)(const char *, int), glob_t * __restrict);
-void	globfree(glob_t *);
-__END_DECLS
-
-#endif /* !_GLOB_H_ */
diff --git a/contrib/libs/libc_compat/ifaddrs.c b/contrib/libs/libc_compat/ifaddrs.c
deleted file mode 100644
index c59d8bc745..0000000000
--- a/contrib/libs/libc_compat/ifaddrs.c
+++ /dev/null
@@ -1,663 +0,0 @@
-/*
-Copyright (c) 2013, Kenneth MacKay
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
- * 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.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
-*/
-
-#include "ifaddrs.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <netpacket/packet.h>
-#include <net/if_arp.h>
-#include <netinet/in.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-
-typedef struct NetlinkList
-{
-    struct NetlinkList *m_next;
-    struct nlmsghdr *m_data;
-    unsigned int m_size;
-} NetlinkList;
-
-static int netlink_socket(void)
-{
-    int l_socket = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-    if(l_socket < 0)
-    {
-        return -1;
-    }
-    
-    struct sockaddr_nl l_addr;
-    memset(&l_addr, 0, sizeof(l_addr));
-    l_addr.nl_family = AF_NETLINK;
-    if(bind(l_socket, (struct sockaddr *)&l_addr, sizeof(l_addr)) < 0)
-    {
-        close(l_socket);
-        return -1;
-    }
-    
-    return l_socket;
-}
-
-static int netlink_send(int p_socket, int p_request)
-{
-    struct
-    {
-        struct nlmsghdr m_hdr;
-        struct rtgenmsg m_msg;
-    } l_data;
-
-    memset(&l_data, 0, sizeof(l_data));
-    
-    l_data.m_hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg));
-    l_data.m_hdr.nlmsg_type = p_request;
-    l_data.m_hdr.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
-    l_data.m_hdr.nlmsg_pid = 0;
-    l_data.m_hdr.nlmsg_seq = p_socket;
-    l_data.m_msg.rtgen_family = AF_UNSPEC;
-    
-    struct sockaddr_nl l_addr;
-    memset(&l_addr, 0, sizeof(l_addr));
-    l_addr.nl_family = AF_NETLINK;
-    return (sendto(p_socket, &l_data.m_hdr, l_data.m_hdr.nlmsg_len, 0, (struct sockaddr *)&l_addr, sizeof(l_addr)));
-}
-
-static int netlink_recv(int p_socket, void *p_buffer, size_t p_len)
-{
-    struct msghdr l_msg;
-    struct iovec l_iov = { p_buffer, p_len };
-    struct sockaddr_nl l_addr;
-
-    for(;;)
-    {
-        l_msg.msg_name = (void *)&l_addr;
-        l_msg.msg_namelen = sizeof(l_addr);
-        l_msg.msg_iov = &l_iov;
-        l_msg.msg_iovlen = 1;
-        l_msg.msg_control = NULL;
-        l_msg.msg_controllen = 0;
-        l_msg.msg_flags = 0;
-        int l_result = recvmsg(p_socket, &l_msg, 0);
-        
-        if(l_result < 0)
-        {
-            if(errno == EINTR)
-            {
-                continue;
-            }
-            return -2;
-        }
-        
-        if(l_msg.msg_flags & MSG_TRUNC)
-        { // buffer was too small
-            return -1;
-        }
-        return l_result;
-    }
-}
-
-static struct nlmsghdr *getNetlinkResponse(int p_socket, int *p_size, int *p_done)
-{
-    size_t l_size = 4096;
-    void *l_buffer = NULL;
-    
-    for(;;)
-    {
-        free(l_buffer);
-        l_buffer = malloc(l_size);
-        if (l_buffer == NULL)
-        {
-            return NULL;
-        }
-        
-        int l_read = netlink_recv(p_socket, l_buffer, l_size);
-        *p_size = l_read;
-        if(l_read == -2)
-        {
-            free(l_buffer);
-            return NULL;
-        }
-        if(l_read >= 0)
-        {
-            pid_t l_pid = getpid();
-            struct nlmsghdr *l_hdr;
-            for(l_hdr = (struct nlmsghdr *)l_buffer; NLMSG_OK(l_hdr, (unsigned int)l_read); l_hdr = (struct nlmsghdr *)NLMSG_NEXT(l_hdr, l_read))
-            {
-                if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket)
-                {
-                    continue;
-                }
-                
-                if(l_hdr->nlmsg_type == NLMSG_DONE)
-                {
-                    *p_done = 1;
-                    break;
-                }
-                
-                if(l_hdr->nlmsg_type == NLMSG_ERROR)
-                {
-                    free(l_buffer);
-                    return NULL;
-                }
-            }
-            return l_buffer;
-        }
-        
-        l_size *= 2;
-    }
-}
-
-static NetlinkList *newListItem(struct nlmsghdr *p_data, unsigned int p_size)
-{
-    NetlinkList *l_item = malloc(sizeof(NetlinkList));
-    if (l_item == NULL)
-    {
-        return NULL;
-    }
-
-    l_item->m_next = NULL;
-    l_item->m_data = p_data;
-    l_item->m_size = p_size;
-    return l_item;
-}
-
-static void freeResultList(NetlinkList *p_list)
-{
-    NetlinkList *l_cur;
-    while(p_list)
-    {
-        l_cur = p_list;
-        p_list = p_list->m_next;
-        free(l_cur->m_data);
-        free(l_cur);
-    }
-}
-
-static NetlinkList *getResultList(int p_socket, int p_request)
-{
-    if(netlink_send(p_socket, p_request) < 0)
-    {
-        return NULL;
-    }
-
-    NetlinkList *l_list = NULL;
-    NetlinkList *l_end = NULL;
-    int l_size;
-    int l_done = 0;
-    while(!l_done)
-    {
-        struct nlmsghdr *l_hdr = getNetlinkResponse(p_socket, &l_size, &l_done);
-        if(!l_hdr)
-        { // error
-            freeResultList(l_list);
-            return NULL;
-        }
-        
-        NetlinkList *l_item = newListItem(l_hdr, l_size);
-        if (!l_item)
-        {
-            freeResultList(l_list);
-            return NULL;
-        }
-        if(!l_list)
-        {
-            l_list = l_item;
-        }
-        else
-        {
-            l_end->m_next = l_item;
-        }
-        l_end = l_item;
-    }
-    return l_list;
-}
-
-static size_t maxSize(size_t a, size_t b)
-{
-    return (a > b ? a : b);
-}
-
-static size_t calcAddrLen(sa_family_t p_family, int p_dataSize)
-{
-    switch(p_family)
-    {
-        case AF_INET:
-            return sizeof(struct sockaddr_in);
-        case AF_INET6:
-            return sizeof(struct sockaddr_in6);
-        case AF_PACKET:
-            return maxSize(sizeof(struct sockaddr_ll), offsetof(struct sockaddr_ll, sll_addr) + p_dataSize);
-        default:
-            return maxSize(sizeof(struct sockaddr), offsetof(struct sockaddr, sa_data) + p_dataSize);
-    }
-}
-
-static void makeSockaddr(sa_family_t p_family, struct sockaddr *p_dest, void *p_data, size_t p_size)
-{
-    switch(p_family)
-    {
-        case AF_INET:
-            memcpy(&((struct sockaddr_in*)p_dest)->sin_addr, p_data, p_size);
-            break;
-        case AF_INET6:
-            memcpy(&((struct sockaddr_in6*)p_dest)->sin6_addr, p_data, p_size);
-            break;
-        case AF_PACKET:
-            memcpy(((struct sockaddr_ll*)p_dest)->sll_addr, p_data, p_size);
-            ((struct sockaddr_ll*)p_dest)->sll_halen = p_size;
-            break;
-        default:
-            memcpy(p_dest->sa_data, p_data, p_size);
-            break;
-    }
-    p_dest->sa_family = p_family;
-}
-
-static void addToEnd(struct ifaddrs **p_resultList, struct ifaddrs *p_entry)
-{
-    if(!*p_resultList)
-    {
-        *p_resultList = p_entry;
-    }
-    else
-    {
-        struct ifaddrs *l_cur = *p_resultList;
-        while(l_cur->ifa_next)
-        {
-            l_cur = l_cur->ifa_next;
-        }
-        l_cur->ifa_next = p_entry;
-    }
-}
-
-static int interpretLink(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList)
-{
-    struct ifinfomsg *l_info = (struct ifinfomsg *)NLMSG_DATA(p_hdr);
-
-    size_t l_nameSize = 0;
-    size_t l_addrSize = 0;
-    size_t l_dataSize = 0;
-    
-    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
-    struct rtattr *l_rta;
-    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFLA_ADDRESS:
-            case IFLA_BROADCAST:
-                l_addrSize += NLMSG_ALIGN(calcAddrLen(AF_PACKET, l_rtaDataSize));
-                break;
-            case IFLA_IFNAME:
-                l_nameSize += NLMSG_ALIGN(l_rtaSize + 1);
-                break;
-            case IFLA_STATS:
-                l_dataSize += NLMSG_ALIGN(l_rtaSize);
-                break;
-            default:
-                break;
-        }
-    }
-    
-    struct ifaddrs *l_entry = malloc(sizeof(struct ifaddrs) + sizeof(int) + l_nameSize + l_addrSize + l_dataSize);
-    if (l_entry == NULL)
-    {
-        return -1;
-    }
-    memset(l_entry, 0, sizeof(struct ifaddrs));
-    l_entry->ifa_name = "";
-    
-    char *l_index = ((char *)l_entry) + sizeof(struct ifaddrs);
-    char *l_name = l_index + sizeof(int);
-    char *l_addr = l_name + l_nameSize;
-    char *l_data = l_addr + l_addrSize;
-    
-    // save the interface index so we can look it up when handling the addresses.
-    memcpy(l_index, &l_info->ifi_index, sizeof(int));
-    
-    l_entry->ifa_flags = l_info->ifi_flags;
-    
-    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
-    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFLA_ADDRESS:
-            case IFLA_BROADCAST:
-            {
-                size_t l_addrLen = calcAddrLen(AF_PACKET, l_rtaDataSize);
-                makeSockaddr(AF_PACKET, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
-                ((struct sockaddr_ll *)l_addr)->sll_ifindex = l_info->ifi_index;
-                ((struct sockaddr_ll *)l_addr)->sll_hatype = l_info->ifi_type;
-                if(l_rta->rta_type == IFLA_ADDRESS)
-                {
-                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                }
-                else
-                {
-                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
-                }
-                l_addr += NLMSG_ALIGN(l_addrLen);
-                break;
-            }
-            case IFLA_IFNAME:
-                strncpy(l_name, l_rtaData, l_rtaDataSize);
-                l_name[l_rtaDataSize] = '\0';
-                l_entry->ifa_name = l_name;
-                break;
-            case IFLA_STATS:
-                memcpy(l_data, l_rtaData, l_rtaDataSize);
-                l_entry->ifa_data = l_data;
-                break;
-            default:
-                break;
-        }
-    }
-    
-    addToEnd(p_resultList, l_entry);
-    return 0;
-}
-
-static struct ifaddrs *findInterface(int p_index, struct ifaddrs **p_links, int p_numLinks)
-{
-    int l_num = 0;
-    struct ifaddrs *l_cur = *p_links;
-    while(l_cur && l_num < p_numLinks)
-    {
-        char *l_indexPtr = ((char *)l_cur) + sizeof(struct ifaddrs);
-        int l_index;
-        memcpy(&l_index, l_indexPtr, sizeof(int));
-        if(l_index == p_index)
-        {
-            return l_cur;
-        }
-        
-        l_cur = l_cur->ifa_next;
-        ++l_num;
-    }
-    return NULL;
-}
-
-static int interpretAddr(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList, int p_numLinks)
-{
-    struct ifaddrmsg *l_info = (struct ifaddrmsg *)NLMSG_DATA(p_hdr);
-    struct ifaddrs *l_interface = findInterface(l_info->ifa_index, p_resultList, p_numLinks);
-    
-    if(l_info->ifa_family == AF_PACKET)
-    {
-        return 0;
-    }
-
-    size_t l_nameSize = 0;
-    size_t l_addrSize = 0;
-    
-    int l_addedNetmask = 0;
-    
-    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
-    struct rtattr *l_rta;
-    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        
-        switch(l_rta->rta_type)
-        {
-            case IFA_ADDRESS:
-            case IFA_LOCAL:
-                if((l_info->ifa_family == AF_INET || l_info->ifa_family == AF_INET6) && !l_addedNetmask)
-                { // make room for netmask
-                    l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
-                    l_addedNetmask = 1;
-                }
-            case IFA_BROADCAST:
-                l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
-                break;
-            case IFA_LABEL:
-                l_nameSize += NLMSG_ALIGN(l_rtaSize + 1);
-                break;
-            default:
-                break;
-        }
-    }
-    
-    struct ifaddrs *l_entry = malloc(sizeof(struct ifaddrs) + l_nameSize + l_addrSize);
-    if (l_entry == NULL)
-    {
-        return -1;
-    }
-    memset(l_entry, 0, sizeof(struct ifaddrs));
-    l_entry->ifa_name = (l_interface ? l_interface->ifa_name : "");
-    
-    char *l_name = ((char *)l_entry) + sizeof(struct ifaddrs);
-    char *l_addr = l_name + l_nameSize;
-    
-    l_entry->ifa_flags = l_info->ifa_flags;
-    if(l_interface)
-    {
-        l_entry->ifa_flags |= l_interface->ifa_flags;
-    }
-    
-    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
-    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFA_ADDRESS:
-            case IFA_BROADCAST:
-            case IFA_LOCAL:
-            {
-                size_t l_addrLen = calcAddrLen(l_info->ifa_family, l_rtaDataSize);
-                makeSockaddr(l_info->ifa_family, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
-                if(l_info->ifa_family == AF_INET6)
-                {
-                    if(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)l_rtaData) || IN6_IS_ADDR_MC_LINKLOCAL((struct in6_addr *)l_rtaData))
-                    {
-                        ((struct sockaddr_in6 *)l_addr)->sin6_scope_id = l_info->ifa_index;
-                    }
-                }
-                
-                if(l_rta->rta_type == IFA_ADDRESS)
-                { // apparently in a point-to-point network IFA_ADDRESS contains the dest address and IFA_LOCAL contains the local address
-                    if(l_entry->ifa_addr)
-                    {
-                        l_entry->ifa_dstaddr = (struct sockaddr *)l_addr;
-                    }
-                    else
-                    {
-                        l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                    }
-                }
-                else if(l_rta->rta_type == IFA_LOCAL)
-                {
-                    if(l_entry->ifa_addr)
-                    {
-                        l_entry->ifa_dstaddr = l_entry->ifa_addr;
-                    }
-                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                }
-                else
-                {
-                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
-                }
-                l_addr += NLMSG_ALIGN(l_addrLen);
-                break;
-            }
-            case IFA_LABEL:
-                strncpy(l_name, l_rtaData, l_rtaDataSize);
-                l_name[l_rtaDataSize] = '\0';
-                l_entry->ifa_name = l_name;
-                break;
-            default:
-                break;
-        }
-    }
-    
-    if(l_entry->ifa_addr && (l_entry->ifa_addr->sa_family == AF_INET || l_entry->ifa_addr->sa_family == AF_INET6))
-    {
-        unsigned l_maxPrefix = (l_entry->ifa_addr->sa_family == AF_INET ? 32 : 128);
-        unsigned l_prefix = (l_info->ifa_prefixlen > l_maxPrefix ? l_maxPrefix : l_info->ifa_prefixlen);
-        char l_mask[16] = {0};
-        unsigned i;
-        for(i=0; i<(l_prefix/8); ++i)
-        {
-            l_mask[i] = 0xff;
-        }
-        if(l_prefix % 8)
-        {
-            l_mask[i] = 0xff << (8 - (l_prefix % 8));
-        }
-        
-        makeSockaddr(l_entry->ifa_addr->sa_family, (struct sockaddr *)l_addr, l_mask, l_maxPrefix / 8);
-        l_entry->ifa_netmask = (struct sockaddr *)l_addr;
-    }
-    
-    addToEnd(p_resultList, l_entry);
-    return 0;
-}
-
-static int interpretLinks(int p_socket, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList)
-{
-    int l_numLinks = 0;
-    pid_t l_pid = getpid();
-    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
-    {
-        unsigned int l_nlsize = p_netlinkList->m_size;
-        struct nlmsghdr *l_hdr;
-        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
-        {
-            if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket)
-            {
-                continue;
-            }
-            
-            if(l_hdr->nlmsg_type == NLMSG_DONE)
-            {
-                break;
-            }
-            
-            if(l_hdr->nlmsg_type == RTM_NEWLINK)
-            {
-                if(interpretLink(l_hdr, p_resultList) == -1)
-                {
-                    return -1;
-                }
-                ++l_numLinks;
-            }
-        }
-    }
-    return l_numLinks;
-}
-
-static int interpretAddrs(int p_socket, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList, int p_numLinks)
-{
-    pid_t l_pid = getpid();
-    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
-    {
-        unsigned int l_nlsize = p_netlinkList->m_size;
-        struct nlmsghdr *l_hdr;
-        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
-        {
-            if((pid_t)l_hdr->nlmsg_pid != l_pid || (int)l_hdr->nlmsg_seq != p_socket)
-            {
-                continue;
-            }
-            
-            if(l_hdr->nlmsg_type == NLMSG_DONE)
-            {
-                break;
-            }
-            
-            if(l_hdr->nlmsg_type == RTM_NEWADDR)
-            {
-                if (interpretAddr(l_hdr, p_resultList, p_numLinks) == -1)
-                {
-                    return -1;
-                }
-            }
-        }
-    }
-    return 0;
-}
-
-int getifaddrs(struct ifaddrs **ifap)
-{
-    if(!ifap)
-    {
-        return -1;
-    }
-    *ifap = NULL;
-    
-    int l_socket = netlink_socket();
-    if(l_socket < 0)
-    {
-        return -1;
-    }
-    
-    NetlinkList *l_linkResults = getResultList(l_socket, RTM_GETLINK);
-    if(!l_linkResults)
-    {
-        close(l_socket);
-        return -1;
-    }
-    
-    NetlinkList *l_addrResults = getResultList(l_socket, RTM_GETADDR);
-    if(!l_addrResults)
-    {
-        close(l_socket);
-        freeResultList(l_linkResults);
-        return -1;
-    }
-    
-    int l_result = 0;
-    int l_numLinks = interpretLinks(l_socket, l_linkResults, ifap);
-    if(l_numLinks == -1 || interpretAddrs(l_socket, l_addrResults, ifap, l_numLinks) == -1)
-    {
-        l_result = -1;
-    }
-    
-    freeResultList(l_linkResults);
-    freeResultList(l_addrResults);
-    close(l_socket);
-    return l_result;
-}
-
-void freeifaddrs(struct ifaddrs *ifa)
-{
-    struct ifaddrs *l_cur;
-    while(ifa)
-    {
-        l_cur = ifa;
-        ifa = ifa->ifa_next;
-        free(l_cur);
-    }
-}
diff --git a/contrib/libs/libc_compat/stdlib.h b/contrib/libs/libc_compat/stdlib.h
deleted file mode 100644
index ad76fe536b..0000000000
--- a/contrib/libs/libc_compat/stdlib.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <stdlib.h>
-
-void* reallocarray(void*, size_t, size_t);
diff --git a/contrib/libs/libc_compat/stpcpy.c b/contrib/libs/libc_compat/stpcpy.c
deleted file mode 100644
index 5a86541f08..0000000000
--- a/contrib/libs/libc_compat/stpcpy.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*	$OpenBSD: stpcpy.c,v 1.3 2017/11/28 06:55:49 tb Exp $	*/
-
-/*
- * Copyright (c) 1988 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.
- */
-
-#include <string.h>
-
-#if defined(APIWARN)
-__warn_references(stpcpy,
-    "stpcpy() is dangerous; do not use it");
-#endif
-
-char *
-stpcpy(char *to, const char *from)
-{
-	for (; (*to = *from) != '\0'; ++from, ++to);
-	return(to);
-}
diff --git a/contrib/libs/libc_compat/strcasestr.c b/contrib/libs/libc_compat/strcasestr.c
deleted file mode 100644
index ee299b1c01..0000000000
--- a/contrib/libs/libc_compat/strcasestr.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*	$OpenBSD: strcasestr.c,v 1.4 2015/08/31 02:53:57 guenther Exp $	*/
-/*	$NetBSD: strcasestr.c,v 1.2 2005/02/09 21:35:47 kleink Exp $	*/
-
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * 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.
- */
-
-#include <ctype.h>
-#include "string.h"
-
-/*
- * Find the first occurrence of find in s, ignore case.
- */
-char *
-strcasestr(const char *s, const char *find)
-{
-	char c, sc;
-	size_t len;
-
-	if ((c = *find++) != 0) {
-		c = (char)tolower((unsigned char)c);
-		len = strlen(find);
-		do {
-			do {
-				if ((sc = *s++) == 0)
-					return (NULL);
-			} while ((char)tolower((unsigned char)sc) != c);
-		} while (strncasecmp(s, find, len) != 0);
-		s--;
-	}
-	return ((char *)s);
-}
-
diff --git a/contrib/libs/libc_compat/strsep.c b/contrib/libs/libc_compat/strsep.c
deleted file mode 100644
index ed605bce97..0000000000
--- a/contrib/libs/libc_compat/strsep.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*	$OpenBSD: strsep.c,v 1.8 2015/08/31 02:53:57 guenther Exp $	*/
-
-/*-
- * Copyright (c) 1990, 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.
- */
-
-#include <string.h>
-
-/*
- * Get next token from string *stringp, where tokens are possibly-empty
- * strings separated by characters from delim.  
- *
- * Writes NULs into the string at *stringp to end tokens.
- * delim need not remain constant from call to call.
- * On return, *stringp points past the last NUL written (if there might
- * be further tokens), or is NULL (if there are definitely no more tokens).
- *
- * If *stringp is NULL, strsep returns NULL.
- */
-char *
-strsep(char **stringp, const char *delim)
-{
-	char *s;
-	const char *spanp;
-	int c, sc;
-	char *tok;
-
-	if ((s = *stringp) == NULL)
-		return (NULL);
-	for (tok = s;;) {
-		c = *s++;
-		spanp = delim;
-		do {
-			if ((sc = *spanp++) == c) {
-				if (c == 0)
-					s = NULL;
-				else
-					s[-1] = 0;
-				*stringp = s;
-				return (tok);
-			}
-		} while (sc != 0);
-	}
-	/* NOTREACHED */
-}
-
diff --git a/contrib/libs/libc_compat/unistd.h b/contrib/libs/libc_compat/unistd.h
deleted file mode 100644
index c62f5f29cd..0000000000
--- a/contrib/libs/libc_compat/unistd.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <unistd.h>
-
-#define issetugid() 0
diff --git a/contrib/libs/libc_compat/update.sh b/contrib/libs/libc_compat/update.sh
deleted file mode 100755
index 4cee160904..0000000000
--- a/contrib/libs/libc_compat/update.sh
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/bin/sh -e
-
-unweak() {
-    sed --in-place --expression 's/DEF_WEAK(.\+);//g' "$1"
-}
-
-get_string_method() {
-   curl "https://raw.githubusercontent.com/openbsd/src/master/lib/libc/string/$1" --output "$1" && unweak "$1"
-}
-
-fix_tabs() {
-	sed --in-place --expression 's/\t/    /g' "$1"
-}
-
-fix_decls() {
-	sed --in-place --expression 's/__BEGIN_DECLS/#ifdef __cplusplus\nextern "C" {\n#endif/g' "$1"
-	sed --in-place --expression 's/__END_DECLS/#ifdef __cplusplus\n} \/\/ extern "C"\n#endif/g' "$1"
-}
-
-get_string_method "strlcpy.c"
-get_string_method "strlcat.c"
-get_string_method "strsep.c"
-# strcasestr uses strncasecmp, which is platform dependent, so include local string.h
-get_string_method "strcasestr.c" && sed --in-place 's/#include <string.h>/#include "string.h"/g' "strcasestr.c"
-get_string_method "memrchr.c"
-get_string_method "stpcpy.c"
-
-mkdir -p include/windows/sys
-curl "https://raw.githubusercontent.com/openbsd/src/master/sys/sys/queue.h" --output "include/windows/sys/queue.h"
-
-mkdir -p include/readpassphrase
-curl "https://raw.githubusercontent.com/openbsd/src/master/include/readpassphrase.h" --output "include/readpassphrase/readpassphrase.h" && fix_decls "include/readpassphrase/readpassphrase.h"
-curl "https://raw.githubusercontent.com/openbsd/src/master/lib/libc/gen/readpassphrase.c" --output "readpassphrase.c" && unweak "readpassphrase.c" && fix_tabs "readpassphrase.c"
-
-curl "https://raw.githubusercontent.com/freebsd/freebsd/master/include/glob.h" --output "glob.h"
-curl "https://raw.githubusercontent.com/freebsd/freebsd/master/lib/libc/gen/glob.c" --output "glob.c"
-curl "https://raw.githubusercontent.com/openbsd/src/master/lib/libc/stdlib/reallocarray.c" --output "reallocarray.c" && unweak "reallocarray.c"
-> "collate.h"
-> "stdlib.h"
-> "unistd.h"
-
-mkdir -p include/uchar
-curl "https://git.musl-libc.org/cgit/musl/plain/include/uchar.h" --output "include/uchar/uchar.h"
-# TODO: provide c16rtomb, mbrtoc16, c32rtomb, mbrtoc32 implementations for uchar
-# if any code actually needs them
-
-mkdir -p include/random/sys
-curl "https://git.musl-libc.org/cgit/musl/plain/include/sys/random.h" --output "include/random/sys/random.h"
-curl "https://git.musl-libc.org/cgit/musl/plain/src/linux/getrandom.c" --output "getrandom.c"
-curl "https://git.musl-libc.org/cgit/musl/plain/src/linux/memfd_create.c" --output "memfd_create.c"
-
-# WARN: do not use github.com/morristech/android-ifaddrs, it is a long-ago abandoned fork
-curl "https://raw.githubusercontent.com/oliviertilmans/android-ifaddrs/master/ifaddrs.c" --output "ifaddrs.c"
-curl "https://raw.githubusercontent.com/oliviertilmans/android-ifaddrs/master/ifaddrs.h" --output "include/ifaddrs/ifaddrs.h"
-
-# apply patches if necessary
-for patch in patches/*.patch; do
-	echo "Applying patch from $patch"
-	patch -p1 < $patch
-done