1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1994-1999 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <unistd.h> 32 #include <fcntl.h> 33 #include <string.h> 34 #include <errno.h> 35 #include <sys/types.h> 36 #include <signal.h> 37 #include <libproc.h> 38 39 static int stop(char *); 40 static int perr(char *); 41 42 static char *command; 43 static char *procname; 44 45 int 46 main(int argc, char **argv) 47 { 48 int rc = 0; 49 50 if ((command = strrchr(argv[0], '/')) != NULL) 51 command++; 52 else 53 command = argv[0]; 54 55 if (argc <= 1) { 56 (void) fprintf(stderr, "usage:\t%s pid ...\n", command); 57 (void) fprintf(stderr, 58 " (stop processes with /proc request)\n"); 59 return (2); 60 } 61 62 while (--argc > 0) 63 rc += stop(*++argv); 64 65 return (rc); 66 } 67 68 static int 69 stop(char *arg) 70 { 71 char ctlfile[100]; 72 long ctl[1]; 73 int ctlfd, gcode; 74 pid_t pid; 75 76 procname = arg; /* for perr() */ 77 if ((pid = proc_arg_psinfo(arg, PR_ARG_PIDS, NULL, &gcode)) == -1) { 78 (void) fprintf(stderr, "%s: cannot control %s: %s\n", 79 command, arg, Pgrab_error(gcode)); 80 return (1); 81 } 82 83 (void) sprintf(ctlfile, "/proc/%d/ctl", (int)pid); 84 errno = 0; 85 if ((ctlfd = open(ctlfile, O_WRONLY)) >= 0) { 86 ctl[0] = PCDSTOP; 87 (void) write(ctlfd, ctl, sizeof (long)); 88 (void) close(ctlfd); 89 } 90 91 return (perr(NULL)); 92 } 93 94 static int 95 perr(char *s) 96 { 97 if (errno == 0) 98 return (0); 99 if (s) 100 (void) fprintf(stderr, "%s: ", procname); 101 else 102 s = procname; 103 perror(s); 104 return (1); 105 } 106