diff options
Diffstat (limited to 'usr.bin/sudo/sudo_setenv.c')
-rw-r--r-- | usr.bin/sudo/sudo_setenv.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/usr.bin/sudo/sudo_setenv.c b/usr.bin/sudo/sudo_setenv.c new file mode 100644 index 00000000000..df55ac23b6b --- /dev/null +++ b/usr.bin/sudo/sudo_setenv.c @@ -0,0 +1,95 @@ +/* + * Copyright (c) 1996, 1998, 1999 Todd C. Miller <Todd.Miller@courtesan.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * 4. Products derived from this software may not be called "Sudo" nor + * may "Sudo" appear in their names without specific prior written + * permission from the author. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#include <stdio.h> +#ifdef STDC_HEADERS +#include <stdlib.h> +#endif /* STDC_HEADERS */ +#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS) +#include <malloc.h> +#endif /* HAVE_MALLOC_H && !STDC_HEADERS */ +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif /* HAVE_UNISTD_H */ +#include <sys/types.h> +#include <sys/param.h> + +#include "sudo.h" + +#ifndef STDC_HEADERS +#ifdef HAVE_PUTENV +extern int putenv __P((const char *)); +#endif /* HAVE_PUTENV */ +#ifdef HAVE_SETENV +extern int setenv __P((char *, char *, int)); +#endif /* HAVE_SETENV */ +#endif /* !STDC_HEADERS */ + +#ifndef lint +static const char rcsid[] = "$Sudo: sudo_setenv.c,v 1.40 1999/07/31 16:19:48 millert Exp $"; +#endif /* lint */ + + +/* + * Add a string of the form "var=val" to the environment. If we are unable + * to expand the current environent, return -1, else return 0. + */ +int +sudo_setenv(var, val) + char *var; + char *val; +{ + +#ifdef HAVE_SETENV + return(setenv(var, val, 1)); +#else + 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)); +#endif /* HAVE_SETENV */ +} |