--- /dev/null
+/*
+ * CU sudo version 1.3.1
+ *
+ * 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 1, 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.
+ *
+ * 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.
+ *
+ * Please send bugs, changes, problems to sudo-bugs.cs.colorado.edu
+ *
+ *******************************************************************
+ *
+ * This module contains sudo_setenv().
+ * sudo_setenv(3) adds a string of the form "var=val" to the environment.
+ *
+ * Todd C. Miller (millert@colorado.edu) Fri Jun 3 18:32:19 MDT 1994
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id$";
+#endif /* lint */
+
+#include "config.h"
+
+#include <stdio.h>
+#ifdef STDC_HEADERS
+#include <stdlib.h>
+#endif /* STDC_HEADERS */
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif /* HAVE_MALLOC_H */
+#include <sys/param.h>
+
+#include "sudo.h"
+
+#ifndef STDC_HEADERS
+extern int putenv();
+extern int setenv();
+extern char *getenv();
+#endif /* !STDC_HEADERS */
+
+
+/**********************************************************************
+ *
+ * sudo_setenv()
+ *
+ * sudo_setenv() adds a string of the form "var=val" to the environment.
+ * If it is unable to expand the current environent it returns -1,
+ * else it returns 0.
+ */
+
+int sudo_setenv(var, val)
+ char *var;
+ char *val;
+{
+
+#ifdef HAVE_SETENV
+ return(setenv(var, val, 1));
+#else
+#ifdef HAVE_PUTENV
+ char *envstring, *tmp;
+
+ envstring = tmp = (char *) malloc(strlen(var) + strlen(val) + 2);
+ if (envstring == NULL)
+ return(-1);
+
+ while ((*tmp++ = *var++))
+ ;
+
+ *(tmp-1) = '=';
+
+ while ((*tmp++ = *val++))
+ ;
+
+ return(putenv(envstring));
+#else
+ /* XXX - implement */
+ return(0);
+#endif /* HAVE_PUTENV */
+#endif /* HAVE_SETENV */
+}