/* Routines for dealing with '\0' separated environment vectors
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
- Written by Miles Bader <miles@gnu.ai.mit.edu>
+ Copyright (C) 1995, 96, 98, 99, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
- 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, or (at
- your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ The GNU C Library 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.
+ Lesser 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
-#ifndef __ENVZ_H__
+#ifndef _ENVZ_H
+#define _ENVZ_H 1
-#define __ENVZ_H__ 1
#include <features.h>
#include <errno.h>
routines. */
#include <argz.h>
+__BEGIN_DECLS
+
/* Returns a pointer to the entry in ENVZ for NAME, or 0 if there is none. */
-extern char *envz_entry __P ((__const char *__envz, size_t __envz_len,
- __const char *__name));
+extern char *envz_entry (__const char *__restrict __envz, size_t __envz_len,
+ __const char *__restrict __name)
+ __THROW __attribute_pure__;
/* Returns a pointer to the value portion of the entry in ENVZ for NAME, or 0
if there is none. */
-extern char *envz_get __P ((__const char *__envz, size_t __envz_len,
- __const char *__name));
+extern char *envz_get (__const char *__restrict __envz, size_t __envz_len,
+ __const char *__restrict __name)
+ __THROW __attribute_pure__;
/* Adds an entry for NAME with value VALUE to ENVZ & ENVZ_LEN. If an entry
with the same name already exists in ENVZ, it is removed. If VALUE is
return NULL, although envz_entry will still return an entry; this is handy
because when merging with another envz, the null entry can override an
entry in the other one. Null entries can be removed with envz_strip (). */
-extern error_t envz_add __P ((char **__envz, size_t *__envz_len,
- __const char *__name, __const char *__value));
+extern error_t envz_add (char **__restrict __envz,
+ size_t *__restrict __envz_len,
+ __const char *__restrict __name,
+ __const char *__restrict __value) __THROW;
/* Adds each entry in ENVZ2 to ENVZ & ENVZ_LEN, as if with envz_add(). If
- OVERRIDE is true, then values in ENVZ2 will supercede those with the same
+ OVERRIDE is true, then values in ENVZ2 will supersede those with the same
name in ENV, otherwise not. */
-extern error_t envz_merge __P ((char **__envz, size_t *__envz_len,
- __const char *__envz2, size_t __envz2_len,
- int __override));
+extern error_t envz_merge (char **__restrict __envz,
+ size_t *__restrict __envz_len,
+ __const char *__restrict __envz2,
+ size_t __envz2_len, int __override) __THROW;
+
+/* Remove the entry for NAME from ENVZ & ENVZ_LEN, if any. */
+extern void envz_remove (char **__restrict __envz,
+ size_t *__restrict __envz_len,
+ __const char *__restrict __name) __THROW;
/* Remove null entries. */
-extern void envz_strip __P ((char **__envz, size_t *__envz_len));
+extern void envz_strip (char **__restrict __envz,
+ size_t *__restrict __envz_len) __THROW;
+
+__END_DECLS
-#endif /* __ENVZ_H__ */
+#endif /* envz.h */