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 2004 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 "libuutil_common.h" 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include <assert.h> 32*0Sstevel@tonic-gate #include <errno.h> 33*0Sstevel@tonic-gate #include <libintl.h> 34*0Sstevel@tonic-gate #include <pthread.h> 35*0Sstevel@tonic-gate #include <stdarg.h> 36*0Sstevel@tonic-gate #include <stdio.h> 37*0Sstevel@tonic-gate #include <stdlib.h> 38*0Sstevel@tonic-gate #include <string.h> 39*0Sstevel@tonic-gate #include <sys/debug.h> 40*0Sstevel@tonic-gate #include <thread.h> 41*0Sstevel@tonic-gate #include <unistd.h> 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #if !defined(TEXT_DOMAIN) 44*0Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST" 45*0Sstevel@tonic-gate #endif 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate static pthread_mutex_t uu_key_lock = PTHREAD_MUTEX_INITIALIZER; 48*0Sstevel@tonic-gate static pthread_key_t uu_error_key; 49*0Sstevel@tonic-gate static int uu_error_key_setup; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static pthread_mutex_t uu_panic_lock = PTHREAD_MUTEX_INITIALIZER; 52*0Sstevel@tonic-gate /* LINTED static unused */ 53*0Sstevel@tonic-gate static const char *uu_panic_format; 54*0Sstevel@tonic-gate /* LINTED static unused */ 55*0Sstevel@tonic-gate static va_list uu_panic_args; 56*0Sstevel@tonic-gate static pthread_t uu_panic_thread; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate static uint32_t _uu_main_error; 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate void 61*0Sstevel@tonic-gate uu_set_error(uint_t code) 62*0Sstevel@tonic-gate { 63*0Sstevel@tonic-gate int error; 64*0Sstevel@tonic-gate if (thr_main() != 0) { 65*0Sstevel@tonic-gate _uu_main_error = code; 66*0Sstevel@tonic-gate return; 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate if (uu_error_key_setup == 0) { 69*0Sstevel@tonic-gate (void) pthread_mutex_lock(&uu_key_lock); 70*0Sstevel@tonic-gate if (uu_error_key_setup == 0) { 71*0Sstevel@tonic-gate error = pthread_key_create(&uu_error_key, NULL); 72*0Sstevel@tonic-gate if (error != 0) 73*0Sstevel@tonic-gate uu_error_key_setup = -1; 74*0Sstevel@tonic-gate else 75*0Sstevel@tonic-gate uu_error_key_setup = 1; 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate (void) pthread_mutex_unlock(&uu_key_lock); 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate if (uu_error_key_setup > 0) 80*0Sstevel@tonic-gate (void) pthread_setspecific(uu_error_key, 81*0Sstevel@tonic-gate (void *)(uintptr_t)code); 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate uint32_t 85*0Sstevel@tonic-gate uu_error(void) 86*0Sstevel@tonic-gate { 87*0Sstevel@tonic-gate if (thr_main() != 0) 88*0Sstevel@tonic-gate return (_uu_main_error); 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate if (uu_error_key_setup < 0) 91*0Sstevel@tonic-gate return (UU_ERROR_UNKNOWN); 92*0Sstevel@tonic-gate else if (uu_error_key_setup == 0) 93*0Sstevel@tonic-gate return (UU_ERROR_NONE); 94*0Sstevel@tonic-gate else 95*0Sstevel@tonic-gate return ((uint32_t)(uintptr_t)pthread_getspecific(uu_error_key)); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate const char * 99*0Sstevel@tonic-gate uu_strerror(uint32_t code) 100*0Sstevel@tonic-gate { 101*0Sstevel@tonic-gate const char *str; 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate switch (code) { 104*0Sstevel@tonic-gate case UU_ERROR_NONE: 105*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "No error"); 106*0Sstevel@tonic-gate break; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate case UU_ERROR_INVALID_ARGUMENT: 109*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Invalid argument"); 110*0Sstevel@tonic-gate break; 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate case UU_ERROR_UNKNOWN_FLAG: 113*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Unknown flag passed"); 114*0Sstevel@tonic-gate break; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate case UU_ERROR_NO_MEMORY: 117*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Out of memory"); 118*0Sstevel@tonic-gate break; 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate case UU_ERROR_CALLBACK_FAILED: 121*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Callback-initiated failure"); 122*0Sstevel@tonic-gate break; 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate case UU_ERROR_NOT_SUPPORTED: 125*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Operation not supported"); 126*0Sstevel@tonic-gate break; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate case UU_ERROR_EMPTY: 129*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "No value provided"); 130*0Sstevel@tonic-gate break; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate case UU_ERROR_UNDERFLOW: 133*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Value too small"); 134*0Sstevel@tonic-gate break; 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate case UU_ERROR_OVERFLOW: 137*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Value too large"); 138*0Sstevel@tonic-gate break; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate case UU_ERROR_INVALID_CHAR: 141*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, 142*0Sstevel@tonic-gate "Value contains unexpected character"); 143*0Sstevel@tonic-gate break; 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate case UU_ERROR_INVALID_DIGIT: 146*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, 147*0Sstevel@tonic-gate "Value contains digit not in base"); 148*0Sstevel@tonic-gate break; 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate case UU_ERROR_SYSTEM: 151*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Underlying system error"); 152*0Sstevel@tonic-gate break; 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate case UU_ERROR_UNKNOWN: 155*0Sstevel@tonic-gate str = dgettext(TEXT_DOMAIN, "Error status not known"); 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate default: 159*0Sstevel@tonic-gate errno = ESRCH; 160*0Sstevel@tonic-gate str = NULL; 161*0Sstevel@tonic-gate break; 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate return (str); 164*0Sstevel@tonic-gate } 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate void 167*0Sstevel@tonic-gate uu_panic(const char *format, ...) 168*0Sstevel@tonic-gate { 169*0Sstevel@tonic-gate va_list args; 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate va_start(args, format); 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate (void) pthread_mutex_lock(&uu_panic_lock); 174*0Sstevel@tonic-gate if (uu_panic_thread == 0) { 175*0Sstevel@tonic-gate uu_panic_thread = pthread_self(); 176*0Sstevel@tonic-gate uu_panic_format = format; 177*0Sstevel@tonic-gate va_copy(uu_panic_args, args); 178*0Sstevel@tonic-gate } 179*0Sstevel@tonic-gate (void) pthread_mutex_unlock(&uu_panic_lock); 180*0Sstevel@tonic-gate 181*0Sstevel@tonic-gate (void) vfprintf(stderr, format, args); 182*0Sstevel@tonic-gate 183*0Sstevel@tonic-gate if (uu_panic_thread == pthread_self()) 184*0Sstevel@tonic-gate abort(); 185*0Sstevel@tonic-gate else 186*0Sstevel@tonic-gate for (;;) 187*0Sstevel@tonic-gate (void) pause(); 188*0Sstevel@tonic-gate } 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate int 191*0Sstevel@tonic-gate assfail(const char *astring, const char *file, int line) 192*0Sstevel@tonic-gate { 193*0Sstevel@tonic-gate __assert(astring, file, line); 194*0Sstevel@tonic-gate /*NOTREACHED*/ 195*0Sstevel@tonic-gate return (0); 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate static void 199*0Sstevel@tonic-gate uu_lockup(void) 200*0Sstevel@tonic-gate { 201*0Sstevel@tonic-gate (void) pthread_mutex_lock(&uu_panic_lock); 202*0Sstevel@tonic-gate (void) pthread_mutex_lock(&uu_key_lock); 203*0Sstevel@tonic-gate uu_avl_lockup(); 204*0Sstevel@tonic-gate uu_list_lockup(); 205*0Sstevel@tonic-gate } 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate static void 208*0Sstevel@tonic-gate uu_release(void) 209*0Sstevel@tonic-gate { 210*0Sstevel@tonic-gate (void) pthread_mutex_unlock(&uu_panic_lock); 211*0Sstevel@tonic-gate (void) pthread_mutex_unlock(&uu_key_lock); 212*0Sstevel@tonic-gate uu_avl_release(); 213*0Sstevel@tonic-gate uu_list_release(); 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate static void 217*0Sstevel@tonic-gate uu_release_child(void) 218*0Sstevel@tonic-gate { 219*0Sstevel@tonic-gate uu_panic_format = NULL; 220*0Sstevel@tonic-gate uu_panic_thread = 0; 221*0Sstevel@tonic-gate 222*0Sstevel@tonic-gate uu_release(); 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate #pragma init(uu_init) 226*0Sstevel@tonic-gate static void 227*0Sstevel@tonic-gate uu_init(void) 228*0Sstevel@tonic-gate { 229*0Sstevel@tonic-gate (void) pthread_atfork(uu_lockup, uu_release, uu_release_child); 230*0Sstevel@tonic-gate } 231