2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
37 static char sccsid[] = "@(#)util.c 8.2 (Berkeley) 4/2/94";
39 static const char rcsid[] =
46 RCSID("$Id: util.c 17878 2006-08-08 21:43:58Z lha $");
52 if (*cp == ':') /* Leading colon is part of file name. */
70 if (!stat(cp, &stb)) {
71 if (S_ISDIR(stb.st_mode))
75 run_err("%s: %s", cp, strerror(errno));
86 cp = (unsigned char *)cp0;
91 if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
96 bad: warnx("%s: invalid user name", cp0);
105 void (*istat)(int), (*qstat)(int);
115 if (setuid(userid) < 0)
117 execl(_PATH_BSHELL, "sh", "-c", s, NULL);
120 istat = signal(SIGINT, SIG_IGN);
121 qstat = signal(SIGQUIT, SIG_IGN);
122 if (waitpid(pid, &status, 0) < 0)
124 (void)signal(SIGINT, istat);
125 (void)signal(SIGQUIT, qstat);
130 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
134 allocbuf(bp, fd, blksize)
142 if (fstat(fd, &stb) < 0) {
143 run_err("fstat: %s", strerror(errno));
146 size = roundup(stb.st_blksize, blksize);
151 if ((p = realloc(bp->buf, size)) == NULL) {
156 run_err("%s", strerror(errno));
170 warnx("lost connection");