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--- Libc/Libc-1669.40.2/stdlib/FreeBSD/getenv.c
+++ Libc/Libc-498/stdlib/FreeBSD/getenv.c
@@ -10,6 +10,10 @@
* 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
* 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.
@@ -31,20 +35,16 @@
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 $");
+__FBSDID("$FreeBSD: src/lib/libc/stdlib/getenv.c,v 1.4 2002/03/21 22:48:41 obrien Exp $");
-#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 **);
+inline char *__findenv(const char *, int *);
/*
- * __findenv_locked --
+ * __findenv --
* 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).
@@ -52,9 +52,12 @@
*
* This routine *should* be a static; don't use it.
*/
-__private_extern__ char *
-__findenv_locked(const char *name, int *offset, char **environ)
+inline char *
+__findenv(name, offset)
+ const char *name;
+ int *offset;
{
+ extern char **environ;
int len, i;
const char *np;
char **p, *cp;
@@ -76,50 +79,15 @@
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)
+getenv(name)
+ const char *name;
{
int offset;
- environ_lock_np();
- char *result = __findenv_locked(name, &offset, *_NSGetEnviron());
- environ_unlock_np();
- return result;
+
+ return (__findenv(name, &offset));
}