1 /* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)putenv.c 5.1 (Berkeley) 02/14/89"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 putenv(str) 23 char *str; 24 { 25 register char *equal; 26 int rval; 27 char *index(); 28 29 if (!(equal = index(str, '='))) 30 return(1); 31 *equal = '\0'; 32 rval = setenv(str, equal + 1, 1); 33 *equal = '='; 34 return(rval); 35 } 36