--- Libc/Libc-1725.40.4/stdlib/FreeBSD/getenv.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (c) 1987, 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.
- * 4. 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[] = "@(#)getenv.c	8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/getenv.c,v 1.8 2007/05/01 16:02:41 ache Exp $");
-
-#include <errno.h>
-#include <os/lock_private.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <string.h>
-#include <crt_externs.h>
-
-#include "libc_private.h"
-
-__private_extern__ char *__findenv_locked(const char *, int *, char **);
-
-/*
- * __findenv_locked --
- *	Returns pointer to value associated with name, if any, else NULL.
- *	Sets offset to be the offset of the name/value combination in the
- *	environmental array, for use by setenv(3) and unsetenv(3).
- *	Explicitly removes '=' in argument name.
- *
- *	This routine *should* be a static; don't use it.
- */
-__private_extern__ char *
-__findenv_locked(const char *name, int *offset, char **environ)
-{
-	int len, i;
-	const char *np;
-	char **p, *cp;
-
-	if (name == NULL || environ == NULL)
-		return (NULL);
-	for (np = name; *np && *np != '='; ++np)
-		continue;
-	len = np - name;
-	for (p = environ; (cp = *p) != NULL; ++p) {
-		for (np = name, i = len; i && *cp; i--)
-			if (*cp++ != *np++)
-				break;
-		if (i == 0 && *cp++ == '=') {
-			*offset = p - environ;
-			return (cp);
-		}
-	}
-	return (NULL);
-}
-
-static os_unfair_lock __environ_lock_obj = OS_UNFAIR_LOCK_INIT;
-void
-environ_lock_np(void)
-{
-	os_unfair_lock_lock_with_options(
-			&__environ_lock_obj, OS_UNFAIR_LOCK_DATA_SYNCHRONIZATION);
-}
-void
-environ_unlock_np(void)
-{
-	os_unfair_lock_unlock(&__environ_lock_obj);
-}
-__private_extern__ void
-__environ_lock_fork_child(void)
-{
-	__environ_lock_obj = OS_UNFAIR_LOCK_INIT;
-}
-
-/*
- * _getenvp -- SPI using an arbitrary pointer to string array (the array must
- * have been created with malloc) and an env state, created by _allocenvstate().
- *	Returns ptr to value associated with name, if any, else NULL.
- */
-char *
-_getenvp(const char *name, char ***envp, void *state __unused)
-{
-	// envp is passed as an argument, so the lock is not protecting everything
-	int offset;
-	environ_lock_np();
-	char *result = (__findenv_locked(name, &offset, *envp));
-	environ_unlock_np();
-	return result;
-}
-
-/*
- * getenv --
- *	Returns ptr to value associated with name, if any, else NULL.
- */
-char *
-getenv(const char *name)
-{
-	int offset;
-	environ_lock_np();
-	char *result = __findenv_locked(name, &offset, *_NSGetEnviron());
-	environ_unlock_np();
-	return result;
-}
-
-/*
- * getenv_copy_np --
- *	Returns ptr to copy of value associated with name, if any, else NULL.
- *	Caller is responsible for freeing the return value.
- *	Sets errno == ENOMEM and returns NULL if memory allocation fails.
- *	Sets errno == EAGAIN and returns NULL if 5 attempts to copy the
- *	string fails.
- */
-char *
-getenv_copy_np(const char *name)
-{
-	/*
-	 * malloc() calls getenv() (which takes the environ_lock_np()), so
-	 * strdup() can not be called with environ_lock_np() held. Instead,
-	 * perform a two-step check for the length of the value (under lock),
-	 * then allocate a buffer, then try to copy the value into the buffer
-	 * (under lock). If the value of the environment variable changed such
-	 * that it no longer fits in the buffer, then try again up to four more
-	 * times. This algorithm is prescribed when using getenv_s() (ISO-C
-	 * Annex K), so this function abstracts that from the user since it is
-	 * difficult to implement correctly.
-	 */
-	unsigned attempts = 0;
-	char *result_buffer = NULL;
-	size_t result_buffer_length = 0;
-	int unused_offset;
-	char *value;
-	size_t value_length;
-
-	/* 1. Get the length of the value. */
-	environ_lock_np();
-	value = __findenv_locked(name, &unused_offset, *_NSGetEnviron());
-	value_length = value ? strlen(value) : 0;
-	environ_unlock_np();
-
-	if (!value)
-		return NULL;
-
-	do {
-		if (++attempts > 5) {
-			errno = EAGAIN;
-			return NULL;
-		}
-
-		/* 2. Allocate a buffer for the copy.  Round up to nearest/next 16 bytes. */
-		result_buffer_length = value_length + 1;
-		result_buffer_length += (16 - (result_buffer_length % 16));
-		result_buffer = (char *)reallocf((void *)result_buffer, result_buffer_length);
-		if (result_buffer == NULL) {
-			/* reallocf() sets errno = ENOMEM on failure. */
-			return NULL;
-		}
-
-		/* 3. Get the variable again and make a copy. */
-		environ_lock_np();
-		value = __findenv_locked(name, &unused_offset, *_NSGetEnviron());
-		value_length = value ? strlcpy(result_buffer, value, result_buffer_length) : 0;
-		environ_unlock_np();
-
-		if (!value)
-			return NULL;
-
-		/* 4. If value was too long for buffer, try again. */
-	} while (value_length >= result_buffer_length);
-
-	return result_buffer;
-}