1 /*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1996 BBN, Inc. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #ifndef lint
36 /* from: static char sccsid[] = "@(#)util.c 8.2 (Berkeley) 4/2/94"; */
37 static const char rcsid[] = "@(#) $Id: util.c,v 1.2 2003-04-12 16:08:52 heas Exp $";
38 #endif /* not lint */
39
40 #include "config.h"
41
42 #include <sys/param.h>
43 #include <sys/stat.h>
44 #if HAVE_SYS_WAIT_H
45 # include <sys/wait.h>
46 #endif
47
48 #include <ctype.h>
49 #include <errno.h>
50 #include <signal.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #if HAVE_STRING_H
54 # include <string.h>
55 #endif
56 #if HAVE_SYS_UNISTD_H
57 # include <unistd.h>
58 #endif
59
60 #include "rcpd.h"
61
62 #define RCPROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
63
64 void
verifydir(cp)65 verifydir(cp)
66 char *cp;
67 {
68 struct stat stb;
69
70 if (!stat(cp, &stb)) {
71 if (S_ISDIR(stb.st_mode))
72 return;
73 errno = ENOTDIR;
74 }
75 run_err("%s: %s", cp, strerror(errno));
76 exit(1);
77 }
78
79 BUF *
allocbuf(bp,fd,blksize)80 allocbuf(bp, fd, blksize)
81 BUF *bp;
82 int fd, blksize;
83 {
84 struct stat stb;
85 size_t size;
86
87 if (fstat(fd, &stb) < 0) {
88 run_err("fstat: %s", strerror(errno));
89 return (0);
90 }
91 size = RCPROUNDUP(stb.st_blksize, blksize);
92 if (size == 0)
93 size = blksize;
94 if (bp->cnt >= size)
95 return (bp);
96 if ((bp->buf = bp->buf?realloc(bp->buf, size):malloc(size)) == NULL) {
97 bp->cnt = 0;
98 run_err("%s", strerror(errno));
99 return (0);
100 }
101 bp->cnt = size;
102 return (bp);
103 }
104
105 void
lostconn(signo)106 lostconn(signo)
107 int signo;
108 {
109 error("lost connection");
110 exit(1);
111 }
112