10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
70Sstevel@tonic-gate * with the License.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate * See the License for the specific language governing permissions
120Sstevel@tonic-gate * and limitations under the License.
130Sstevel@tonic-gate *
140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate *
200Sstevel@tonic-gate * CDDL HEADER END
210Sstevel@tonic-gate */
22*373Sceastha /*
23*373Sceastha * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24*373Sceastha * Use is subject to license terms.
25*373Sceastha */
26*373Sceastha
270Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
280Sstevel@tonic-gate /* All Rights Reserved */
290Sstevel@tonic-gate
300Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
310Sstevel@tonic-gate
320Sstevel@tonic-gate #include "mail.h"
330Sstevel@tonic-gate
34*373Sceastha int
dowait(pid_t pidval)35*373Sceastha dowait(pid_t pidval)
360Sstevel@tonic-gate {
37*373Sceastha pid_t w;
380Sstevel@tonic-gate int status;
390Sstevel@tonic-gate void (*istat)(), (*qstat)();
400Sstevel@tonic-gate
410Sstevel@tonic-gate /*
420Sstevel@tonic-gate Parent temporarily ignores signals so it will remain
430Sstevel@tonic-gate around for command to finish
440Sstevel@tonic-gate */
450Sstevel@tonic-gate istat = signal(SIGINT, SIG_IGN);
460Sstevel@tonic-gate qstat = signal(SIGQUIT, SIG_IGN);
470Sstevel@tonic-gate
480Sstevel@tonic-gate while ((w = wait(&status)) != pidval && w != CERROR);
490Sstevel@tonic-gate if (w == CERROR) {
500Sstevel@tonic-gate status = -errno;
510Sstevel@tonic-gate signal(SIGINT, istat);
520Sstevel@tonic-gate signal(SIGQUIT, qstat);
530Sstevel@tonic-gate return (status);
540Sstevel@tonic-gate }
550Sstevel@tonic-gate
560Sstevel@tonic-gate signal(SIGINT, istat);
570Sstevel@tonic-gate signal(SIGQUIT, qstat);
580Sstevel@tonic-gate status = ((status>>8)&0xFF); /* extract 8 high order bits */
590Sstevel@tonic-gate return (status);
600Sstevel@tonic-gate }
610Sstevel@tonic-gate
620Sstevel@tonic-gate /*
630Sstevel@tonic-gate invoke shell to execute command waiting for command to terminate
640Sstevel@tonic-gate s -> command string
650Sstevel@tonic-gate return:
660Sstevel@tonic-gate status -> command exit status
670Sstevel@tonic-gate */
68*373Sceastha int
systm(char * s)69*373Sceastha systm(char *s)
700Sstevel@tonic-gate {
710Sstevel@tonic-gate pid_t pid;
720Sstevel@tonic-gate
730Sstevel@tonic-gate /*
740Sstevel@tonic-gate Spawn the shell to execute command, however, since the
750Sstevel@tonic-gate mail command runs setgid mode reset the effective group
760Sstevel@tonic-gate id to the real group id so that the command does not
770Sstevel@tonic-gate acquire any special privileges
780Sstevel@tonic-gate */
790Sstevel@tonic-gate if ((pid = fork()) == CHILD) {
800Sstevel@tonic-gate setuid(my_uid);
810Sstevel@tonic-gate setgid(my_gid);
820Sstevel@tonic-gate #ifdef SVR3
830Sstevel@tonic-gate execl("/bin/sh", "sh", "-c", s, (char*)NULL);
840Sstevel@tonic-gate #else
850Sstevel@tonic-gate execl("/usr/bin/sh", "sh", "-c", s, (char*)NULL);
860Sstevel@tonic-gate #endif
870Sstevel@tonic-gate exit(127);
880Sstevel@tonic-gate }
890Sstevel@tonic-gate return (dowait(pid));
900Sstevel@tonic-gate }
91