100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "bsd_locl.h"
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RCSID("$Id: rcp_util.c,v 1.8 1998/09/28 11:45:21 joda Exp $");
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char *
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colon(char *cp)
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{
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if (*cp == ':') /* Leading colon is part of file name. */
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return (0);
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for (; *cp; ++cp) {
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if (*cp == ':')
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return (cp);
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if (*cp == '/')
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return (0);
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}
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return (0);
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}
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int
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okname(char *cp0)
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{
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int c;
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char *cp;
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cp = cp0;
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do {
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c = *cp;
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if (c & 0200)
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goto bad;
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if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-')
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goto bad;
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} while (*++cp);
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return (1);
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bad: warnx("%s: invalid user name", cp0);
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return (0);
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}
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int
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susystem(char *s, int userid)
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{
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RETSIGTYPE (*istat)(), (*qstat)();
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int status;
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pid_t pid;
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pid = fork();
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switch (pid) {
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case -1:
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return (127);
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case 0:
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if(do_osfc2_magic(userid))
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exit(1);
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setuid(userid);
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execl(_PATH_BSHELL, "sh", "-c", s, NULL);
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_exit(127);
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}
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istat = signal(SIGINT, SIG_IGN);
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qstat = signal(SIGQUIT, SIG_IGN);
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if (waitpid(pid, &status, 0) < 0)
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status = -1;
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signal(SIGINT, istat);
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signal(SIGQUIT, qstat);
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return (status);
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}
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