1 /*
2 * Copyright (c) 1989 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 #ifndef lint
19 static char sccsid[] = "@(#)util.c 5.3 (Berkeley) 05/22/90";
20 #endif /* not lint */
21
22 #include <sys/param.h>
23 #include <errno.h>
24 #include <stdio.h>
25 #include <string.h>
26 #include <stdlib.h>
27
28 char *
rlink(name)29 rlink(name)
30 char *name;
31 {
32 extern char path[];
33 int len;
34 static char lbuf[MAXPATHLEN];
35
36 len = readlink(name, lbuf, sizeof(lbuf));
37 if (len == -1) {
38 (void)fprintf(stderr, "mtree: %s: %s.\n",
39 path + 2, strerror(errno));
40 exit(1);
41 }
42 lbuf[len] = '\0';
43 return(lbuf);
44 }
45
46 char *
emalloc(size)47 emalloc(size)
48 int size;
49 {
50 char *p;
51
52 /* NOSTRICT */
53 if (!(p = malloc((u_int)size)))
54 nomem();
55 bzero(p, size);
56 return(p);
57 }
58
nomem()59 nomem()
60 {
61 (void)fprintf(stderr, "mtree: %s.\n", strerror(ENOMEM));
62 exit(1);
63 }
64