diff options
Diffstat (limited to 'crypto/kerberosIV/appl/bsd/rcp_util.c')
-rw-r--r-- | crypto/kerberosIV/appl/bsd/rcp_util.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/crypto/kerberosIV/appl/bsd/rcp_util.c b/crypto/kerberosIV/appl/bsd/rcp_util.c new file mode 100644 index 0000000..6f0c5f0 --- /dev/null +++ b/crypto/kerberosIV/appl/bsd/rcp_util.c @@ -0,0 +1,97 @@ +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "bsd_locl.h" + +RCSID("$Id: rcp_util.c,v 1.7 1996/11/17 20:23:05 assar Exp $"); + +char * +colon(char *cp) +{ + if (*cp == ':') /* Leading colon is part of file name. */ + return (0); + + for (; *cp; ++cp) { + if (*cp == ':') + return (cp); + if (*cp == '/') + return (0); + } + return (0); +} + +int +okname(char *cp0) +{ + int c; + char *cp; + + cp = cp0; + do { + c = *cp; + if (c & 0200) + goto bad; + if (!isalpha(c) && !isdigit(c) && c != '_' && c != '-') + goto bad; + } while (*++cp); + return (1); + +bad: warnx("%s: invalid user name", cp0); + return (0); +} + +int +susystem(char *s, int userid) +{ + RETSIGTYPE (*istat)(), (*qstat)(); + int status; + pid_t pid; + + pid = fork(); + switch (pid) { + case -1: + return (127); + + case 0: + setuid(userid); + execl(_PATH_BSHELL, "sh", "-c", s, NULL); + _exit(127); + } + istat = signal(SIGINT, SIG_IGN); + qstat = signal(SIGQUIT, SIG_IGN); + if (waitpid(pid, &status, 0) < 0) + status = -1; + signal(SIGINT, istat); + signal(SIGQUIT, qstat); + return (status); +} |