1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <stdlib.h> 31*0Sstevel@tonic-gate #include <unistd.h> 32*0Sstevel@tonic-gate #include <fcntl.h> 33*0Sstevel@tonic-gate #include <string.h> 34*0Sstevel@tonic-gate #include <errno.h> 35*0Sstevel@tonic-gate #include <sys/types.h> 36*0Sstevel@tonic-gate #include <signal.h> 37*0Sstevel@tonic-gate #include <libproc.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate static int start(char *); 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate static char *command; 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate int 44*0Sstevel@tonic-gate main(int argc, char **argv) 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate int rc = 0; 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate if ((command = strrchr(argv[0], '/')) != NULL) 49*0Sstevel@tonic-gate command++; 50*0Sstevel@tonic-gate else 51*0Sstevel@tonic-gate command = argv[0]; 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate if (argc <= 1) { 54*0Sstevel@tonic-gate (void) fprintf(stderr, "usage:\t%s pid ...\n", command); 55*0Sstevel@tonic-gate (void) fprintf(stderr, " (set stopped processes running)\n"); 56*0Sstevel@tonic-gate return (2); 57*0Sstevel@tonic-gate } 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate while (--argc > 0) 60*0Sstevel@tonic-gate rc += start(*++argv); 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate return (rc); 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate static int 66*0Sstevel@tonic-gate start(char *arg) 67*0Sstevel@tonic-gate { 68*0Sstevel@tonic-gate struct ps_prochandle *P; 69*0Sstevel@tonic-gate int gcode; 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate if ((P = proc_arg_grab(arg, PR_ARG_PIDS, 72*0Sstevel@tonic-gate PGRAB_FORCE | PGRAB_RETAIN | PGRAB_NOSTOP, &gcode)) == NULL) { 73*0Sstevel@tonic-gate (void) fprintf(stderr, "%s: cannot control %s: %s\n", 74*0Sstevel@tonic-gate command, arg, Pgrab_error(gcode)); 75*0Sstevel@tonic-gate return (1); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * If the victim is stopped because of a job control signal, we 80*0Sstevel@tonic-gate * need to send it SIGCONT to get it moving again, otherwise 81*0Sstevel@tonic-gate * the agent will not be able to run, and so will not be able to 82*0Sstevel@tonic-gate * exit the process. 83*0Sstevel@tonic-gate */ 84*0Sstevel@tonic-gate (void) kill(Pstatus(P)->pr_pid, SIGCONT); 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * if the agent already exists, Pcreate_agent will adopt the 88*0Sstevel@tonic-gate * extant agent so that we can destroy it 89*0Sstevel@tonic-gate */ 90*0Sstevel@tonic-gate if (Pstatus(P)->pr_lwp.pr_flags & PR_AGENT) { 91*0Sstevel@tonic-gate if (Pcreate_agent(P) != 0) { 92*0Sstevel@tonic-gate (void) fprintf(stderr, 93*0Sstevel@tonic-gate "%s: cannot remove agent from %s: %s\n", 94*0Sstevel@tonic-gate command, arg, strerror(errno)); 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate Prelease(P, 0); 97*0Sstevel@tonic-gate return (1); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate Pdestroy_agent(P); 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate /* 104*0Sstevel@tonic-gate * Prelease could change the tracing flags or leave the victim hung 105*0Sstevel@tonic-gate * so we set the process running and free the handle by hand. 106*0Sstevel@tonic-gate */ 107*0Sstevel@tonic-gate (void) Psetrun(P, 0, 0); 108*0Sstevel@tonic-gate Pfree(P); 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate return (0); 111*0Sstevel@tonic-gate } 112