Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / crypto / heimdal / appl / rcp / util.c
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1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 *
33 * @(#)util.c 8.2 (Berkeley) 4/2/94
34 * $FreeBSD: src/crypto/heimdal/appl/rcp/util.c,v 1.1.1.1.2.3 2002/09/20 10:50:16 nectar Exp $
35 * $DragonFly: src/crypto/heimdal/appl/rcp/Attic/util.c,v 1.2 2003/06/17 04:24:35 dillon Exp $
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36 */
37
38#if 0
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39#endif
40
41#include "rcp_locl.h"
42
43RCSID("$Id: util.c,v 1.6 2001/09/04 14:35:58 assar Exp $");
44
45char *
46colon(cp)
47 char *cp;
48{
49 if (*cp == ':') /* Leading colon is part of file name. */
50 return (0);
51
52 for (; *cp; ++cp) {
53 if (*cp == ':')
54 return (cp);
55 if (*cp == '/')
56 return (0);
57 }
58 return (0);
59}
60
61void
62verifydir(cp)
63 char *cp;
64{
65 struct stat stb;
66
67 if (!stat(cp, &stb)) {
68 if (S_ISDIR(stb.st_mode))
69 return;
70 errno = ENOTDIR;
71 }
72 run_err("%s: %s", cp, strerror(errno));
73 exit(1);
74}
75
76int
77okname(cp0)
78 char *cp0;
79{
80 int c;
81 char *cp;
82
83 cp = cp0;
84 do {
85 c = *cp;
86 if (c & 0200)
87 goto bad;
88 if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
89 goto bad;
90 } while (*++cp);
91 return (1);
92
93bad: warnx("%s: invalid user name", cp0);
94 return (0);
95}
96
97int
98susystem(s, userid)
99 int userid;
100 char *s;
101{
102 void (*istat)(int), (*qstat)(int);
103 int status;
104 pid_t pid;
105
106 pid = fork();
107 switch (pid) {
108 case -1:
109 return (127);
110
111 case 0:
112 (void)setuid(userid);
113 execl(_PATH_BSHELL, "sh", "-c", s, NULL);
114 _exit(127);
115 }
116 istat = signal(SIGINT, SIG_IGN);
117 qstat = signal(SIGQUIT, SIG_IGN);
118 if (waitpid(pid, &status, 0) < 0)
119 status = -1;
120 (void)signal(SIGINT, istat);
121 (void)signal(SIGQUIT, qstat);
122 return (status);
123}
124
125#ifndef roundup
126#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
127#endif
128
129BUF *
130allocbuf(bp, fd, blksize)
131 BUF *bp;
132 int fd, blksize;
133{
134 struct stat stb;
135 size_t size;
136 char *p;
137
138 if (fstat(fd, &stb) < 0) {
139 run_err("fstat: %s", strerror(errno));
140 return (0);
141 }
142 size = roundup(stb.st_blksize, blksize);
143 if (size == 0)
144 size = blksize;
145 if (bp->cnt >= size)
146 return (bp);
147 if ((p = realloc(bp->buf, size)) == NULL) {
148 if (bp->buf)
149 free(bp->buf);
150 bp->buf = NULL;
151 bp->cnt = 0;
152 run_err("%s", strerror(errno));
153 return (0);
154 }
155 memset(p, 0, size);
156 bp->buf = p;
157 bp->cnt = size;
158 return (bp);
159}
160
161void
162lostconn(signo)
163 int signo;
164{
165 if (!iamremote)
166 warnx("lost connection");
167 exit(1);
168}