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Updated from ../gpl2lgpl.sed /home/gd/gnu/lib/error.c

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This commit is contained in:
Roland McGrath
1995-12-06 00:14:32 +00:00
parent 77a58cad3f
commit 196980f511
18 changed files with 9876 additions and 95 deletions
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80
sysdeps/generic/putenv.c
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@@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1994 Free Software Foundation, Inc.
/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -17,32 +17,36 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <errno.h>
#if defined (_AIX) && !defined (__GNUC__)
#pragma alloca
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if defined (__GNU_LIBRARY__) || defined (HAVE_STDLIB_H)
#if _LIBC || HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if defined (__GNU_LIBRARY__) || defined (HAVE_STRING_H)
#if _LIBC || HAVE_STRING_H
#include <string.h>
#endif
#if defined (__GNU_LIBRARY__) || defined (HAVE_UNISTD_H)
#include <unistd.h>
#endif
#if !defined (__GNU_LIBRARY__) && !defined (HAVE_STRCHR)
#if !__GNU_LIBRARY__ && !HAVE_STRCHR
#define strchr index
#endif
#if !defined (__GNU_LIBRARY__) && !defined (HAVE_MEMCPY)
#define memcpy(d,s,n) bcopy ((s), (d), (n))
#endif
#ifndef HAVE_GNU_LD
#define __environ environ
#endif
#ifndef _LIBC
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#else
#ifdef __GNUC__
#define alloca __builtin_alloca
#else
extern char *alloca ();
#endif /* __GNUC__ */
#endif /* HAVE_ALLOCA_H */
#endif /* _LIBC */
/* Put STRING, which is of the form "NAME=VALUE", in the environment. */
@@ -51,51 +55,15 @@ putenv (string)
const char *string;
{
const char *const name_end = strchr (string, '=');
register size_t size;
register char **ep;
if (name_end == NULL)
if (name_end)
{
/* Remove the variable from the environment. */
size = strlen (string);
for (ep = __environ; *ep != NULL; ++ep)
if (!strncmp (*ep, string, size) && (*ep)[size] == '=')
{
while (ep[1] != NULL)
{
ep[0] = ep[1];
++ep;
}
*ep = NULL;
return 0;
}
char *name = alloca (name_end - string + 1);
memcpy (name, string, name_end - string);
name[name_end - string] = '\0';
return setenv (name, string + 1, 1);
}
size = 0;
for (ep = __environ; *ep != NULL; ++ep)
if (!strncmp (*ep, string, name_end - string) &&
(*ep)[name_end - string] == '=')
break;
else
++size;
if (*ep == NULL)
{
static char **last_environ = NULL;
char **new_environ = (char **) malloc ((size + 2) * sizeof (char *));
if (new_environ == NULL)
return -1;
(void) memcpy ((void *) new_environ, (void *) __environ,
size * sizeof (char *));
new_environ[size] = (char *) string;
new_environ[size + 1] = NULL;
if (last_environ != NULL)
free ((void *) last_environ);
last_environ = new_environ;
__environ = new_environ;
}
else
*ep = (char *) string;
unsetenv (string);
return 0;
}