1 /* 2 * Copyright (c) 1987 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #ifndef lint 19 char copyright[] = 20 "@(#) Copyright (c) 1987 Regents of the University of California.\n\ 21 All rights reserved.\n"; 22 #endif /* not lint */ 23 24 #ifndef lint 25 static char sccsid[] = "@(#)dirname.c 5.4 (Berkeley) 10/12/88"; 26 #endif /* not lint */ 27 28 #include <stdio.h> 29 30 main(argc, argv) 31 int argc; 32 char **argv; 33 { 34 char *p, *rindex(); 35 36 if (argc != 2) { 37 fprintf(stderr, "usage: dirname path\n"); 38 exit(1); 39 } 40 if (p = rindex(*++argv, '/')) 41 if (p > *argv) 42 *p = '\0'; 43 else 44 *++p = '\0'; 45 else 46 *argv = "."; 47 printf("%s\n", *argv); 48 exit(0); 49 } 50