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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 static const char sccsid[] = "@(#)util.c 8.2 (Berkeley) 4/2/94";
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
57 if (*cp == ':') /* Leading colon is part of file name. */
74 if (!stat(cp, &stb)) {
75 if (S_ISDIR(stb.st_mode))
79 run_err("%s: %s", cp, strerror(errno));
94 if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-' && c != '.')
99 bad: warnx("%s: invalid user name", cp0);
104 susystem(char *s, int userid)
116 (void)setuid(userid);
117 execl(_PATH_BSHELL, "sh", "-c", s, (char *)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 allocbuf(BUF *bp, int fd, int blksize)
135 if (fstat(fd, &stb) < 0) {
136 run_err("fstat: %s", strerror(errno));
139 size = roundup(stb.st_blksize, blksize);
144 if ((bp->buf = realloc(bp->buf, size)) == NULL) {
146 run_err("%s", strerror(errno));
154 lostconn(int signo __unused)
157 warnx("lost connection");