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 (c) 1998-2001 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 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 <limits.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate #include <stdarg.h> 32*0Sstevel@tonic-gate #include <stdio.h> 33*0Sstevel@tonic-gate #include <errno.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #include "Pcontrol.h" 36*0Sstevel@tonic-gate #include "Putil.h" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate /* 39*0Sstevel@tonic-gate * Place the new element on the list prior to the existing element. 40*0Sstevel@tonic-gate */ 41*0Sstevel@tonic-gate void 42*0Sstevel@tonic-gate list_link(void *new, void *existing) 43*0Sstevel@tonic-gate { 44*0Sstevel@tonic-gate list_t *p = new; 45*0Sstevel@tonic-gate list_t *q = existing; 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate if (q) { 48*0Sstevel@tonic-gate p->list_forw = q; 49*0Sstevel@tonic-gate p->list_back = q->list_back; 50*0Sstevel@tonic-gate q->list_back->list_forw = p; 51*0Sstevel@tonic-gate q->list_back = p; 52*0Sstevel@tonic-gate } else { 53*0Sstevel@tonic-gate p->list_forw = p->list_back = p; 54*0Sstevel@tonic-gate } 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate /* 58*0Sstevel@tonic-gate * Unchain the specified element from a list. 59*0Sstevel@tonic-gate */ 60*0Sstevel@tonic-gate void 61*0Sstevel@tonic-gate list_unlink(void *old) 62*0Sstevel@tonic-gate { 63*0Sstevel@tonic-gate list_t *p = old; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate if (p->list_forw != p) { 66*0Sstevel@tonic-gate p->list_back->list_forw = p->list_forw; 67*0Sstevel@tonic-gate p->list_forw->list_back = p->list_back; 68*0Sstevel@tonic-gate } 69*0Sstevel@tonic-gate p->list_forw = p->list_back = p; 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate /* 73*0Sstevel@tonic-gate * Routines to manipulate sigset_t, fltset_t, or sysset_t. These routines 74*0Sstevel@tonic-gate * are provided as equivalents for the <sys/procfs.h> macros prfillset, 75*0Sstevel@tonic-gate * premptyset, praddset, and prdelset. These functions are preferable 76*0Sstevel@tonic-gate * because they are not macros which rely on using sizeof (*sp), and thus 77*0Sstevel@tonic-gate * can be used to create common code to manipulate event sets. The set 78*0Sstevel@tonic-gate * size must be passed explicitly, e.g. : prset_fill(&set, sizeof (set)); 79*0Sstevel@tonic-gate */ 80*0Sstevel@tonic-gate void 81*0Sstevel@tonic-gate prset_fill(void *sp, size_t size) 82*0Sstevel@tonic-gate { 83*0Sstevel@tonic-gate size_t i = size / sizeof (uint32_t); 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate while (i != 0) 86*0Sstevel@tonic-gate ((uint32_t *)sp)[--i] = (uint32_t)0xFFFFFFFF; 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate void 90*0Sstevel@tonic-gate prset_empty(void *sp, size_t size) 91*0Sstevel@tonic-gate { 92*0Sstevel@tonic-gate size_t i = size / sizeof (uint32_t); 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate while (i != 0) 95*0Sstevel@tonic-gate ((uint32_t *)sp)[--i] = (uint32_t)0; 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate void 99*0Sstevel@tonic-gate prset_add(void *sp, size_t size, uint_t flag) 100*0Sstevel@tonic-gate { 101*0Sstevel@tonic-gate if (flag - 1 < 32 * size / sizeof (uint32_t)) 102*0Sstevel@tonic-gate ((uint32_t *)sp)[(flag - 1) / 32] |= 1U << ((flag - 1) % 32); 103*0Sstevel@tonic-gate } 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate void 106*0Sstevel@tonic-gate prset_del(void *sp, size_t size, uint_t flag) 107*0Sstevel@tonic-gate { 108*0Sstevel@tonic-gate if (flag - 1 < 32 * size / sizeof (uint32_t)) 109*0Sstevel@tonic-gate ((uint32_t *)sp)[(flag - 1) / 32] &= ~(1U << ((flag - 1) % 32)); 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate int 113*0Sstevel@tonic-gate prset_ismember(void *sp, size_t size, uint_t flag) 114*0Sstevel@tonic-gate { 115*0Sstevel@tonic-gate return ((flag - 1 < 32 * size / sizeof (uint32_t)) && 116*0Sstevel@tonic-gate (((uint32_t *)sp)[(flag - 1) / 32] & (1U << ((flag - 1) % 32)))); 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate /* 120*0Sstevel@tonic-gate * If _libproc_debug is set, printf the debug message to stderr 121*0Sstevel@tonic-gate * with an appropriate prefix. 122*0Sstevel@tonic-gate */ 123*0Sstevel@tonic-gate /*PRINTFLIKE1*/ 124*0Sstevel@tonic-gate void 125*0Sstevel@tonic-gate dprintf(const char *format, ...) 126*0Sstevel@tonic-gate { 127*0Sstevel@tonic-gate if (_libproc_debug) { 128*0Sstevel@tonic-gate va_list alist; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate va_start(alist, format); 131*0Sstevel@tonic-gate (void) fputs("libproc DEBUG: ", stderr); 132*0Sstevel@tonic-gate (void) vfprintf(stderr, format, alist); 133*0Sstevel@tonic-gate va_end(alist); 134*0Sstevel@tonic-gate } 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate /* 138*0Sstevel@tonic-gate * Printf-style error reporting function. This is used to supplement the error 139*0Sstevel@tonic-gate * return codes from various libproc functions with additional text. Since we 140*0Sstevel@tonic-gate * are a library, and should not be spewing messages to stderr, we provide a 141*0Sstevel@tonic-gate * default version of this function that does nothing, but by calling this 142*0Sstevel@tonic-gate * function we allow the client program to define its own version of the 143*0Sstevel@tonic-gate * function that will interpose on our empty default. This may be useful for 144*0Sstevel@tonic-gate * clients that wish to display such messages to the user. 145*0Sstevel@tonic-gate */ 146*0Sstevel@tonic-gate /*ARGSUSED*/ 147*0Sstevel@tonic-gate /*PRINTFLIKE2*/ 148*0Sstevel@tonic-gate void 149*0Sstevel@tonic-gate Perror_printf(struct ps_prochandle *P, const char *format, ...) 150*0Sstevel@tonic-gate { 151*0Sstevel@tonic-gate /* nothing to do here */ 152*0Sstevel@tonic-gate } 153