/* environ.c -- library for manipulating environments for GNU.
Copyright (C) 1986, 1989 Free Software Foundation, Inc.
-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 of the License, or
-(at your option) any later version.
+ 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 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
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program 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.
-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 General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#include "defs.h"
#include "environ.h"
-#include <string.h>
-#include "defs.h" /* For strsave(). */
-
+#include "gdb_string.h"
+#include "gdbcore.h"
\f
+
/* Return a new environment object. */
struct environ *
extern char **environ;
register int i;
- for (i = 0; environ[i]; i++) /*EMPTY*/;
+ if (environ == NULL)
+ return;
+
+ for (i = 0; environ[i]; i++) /*EMPTY */ ;
if (e->allocated < i)
{
e->allocated = max (i, e->allocated + 10);
- e->vector = (char **) xrealloc ((char *)e->vector,
+ e->vector = (char **) xrealloc ((char *) e->vector,
(e->allocated + 1) * sizeof (char *));
}
if (i == e->allocated)
{
e->allocated += 10;
- vector = (char **) xrealloc ((char *)vector,
+ vector = (char **) xrealloc ((char *) vector,
(e->allocated + 1) * sizeof (char *));
e->vector = vector;
}
strcat (s, value);
vector[i] = s;
- /* Certain variables get exported back to the parent (e.g. our)
- environment, too. FIXME: this is a hideous hack and should not be
- allowed to live. What if we want to change the environment we pass to
- the program without affecting GDB's behavior? */
- if (STREQ(var, "PATH") /* Object file location */
- || STREQ (var, "G960BASE") /* Intel 960 downloads */
- || STREQ (var, "G960BIN") /* Intel 960 downloads */
- )
- {
- putenv (strsave (s));
- }
+ /* This used to handle setting the PATH and GNUTARGET variables
+ specially. The latter has been replaced by "set gnutarget"
+ (which has worked since GDB 4.11). The former affects searching
+ the PATH to find SHELL, and searching the PATH to find the
+ argument of "symbol-file" or "exec-file". Maybe we should have
+ some kind of "set exec-path" for that. But in any event, having
+ "set env" affect anything besides the inferior is a bad idea.
+ What if we want to change the environment we pass to the program
+ without afecting GDB's behavior? */
- /* This is a compatibility hack, since GDB 4.10 and older didn't have
- `set gnutarget'. Eventually it should go away, so that (for example)
- you can debug objdump's handling of GNUTARGET without affecting GDB's
- behavior. */
- if (STREQ (var, "GNUTARGET"))
- {
- set_gnutarget (value);
- }
return;
}