| 1 | /*- |
| 2 | * Copyright (c) 1988 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | */ |
| 7 | |
| 8 | #if defined(LIBC_SCCS) && !defined(lint) |
| 9 | static char sccsid[] = "@(#)putenv.c 5.4 (Berkeley) %G%"; |
| 10 | #endif /* LIBC_SCCS and not lint */ |
| 11 | |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | |
| 15 | int |
| 16 | putenv(str) |
| 17 | const char *str; |
| 18 | { |
| 19 | register char *p, *equal; |
| 20 | int rval; |
| 21 | |
| 22 | if (!(p = strdup(str))) |
| 23 | return(1); |
| 24 | if (!(equal = index(p, '='))) { |
| 25 | (void)free(p); |
| 26 | return(1); |
| 27 | } |
| 28 | *equal = '\0'; |
| 29 | rval = setenv(p, equal + 1, 1); |
| 30 | (void)free(p); |
| 31 | return(rval); |
| 32 | } |