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 <stdio.h> 30*0Sstevel@tonic-gate #include <stdlib.h> 31*0Sstevel@tonic-gate #include <stdarg.h> 32*0Sstevel@tonic-gate #include <syslog.h> 33*0Sstevel@tonic-gate #include <string.h> 34*0Sstevel@tonic-gate #include <cryptoutil.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #define CRYPTO_DEBUG_ENV "SUNW_CRYPTO_DEBUG" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate static char *_cryptodebug_prefix = NULL; 39*0Sstevel@tonic-gate static int _cryptodebug_enabled = -1; /* -1 unknown, 0 disabled, 1 enabled */ 40*0Sstevel@tonic-gate static boolean_t _cryptodebug_syslog = B_TRUE; 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate /*PRINTFLIKE1*/ 43*0Sstevel@tonic-gate void 44*0Sstevel@tonic-gate cryptodebug(const char *fmt, ...) 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate va_list args; 47*0Sstevel@tonic-gate char fmtbuf[BUFSIZ]; 48*0Sstevel@tonic-gate char msgbuf[BUFSIZ]; 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate if (fmt == NULL || _cryptodebug_enabled != 1) 51*0Sstevel@tonic-gate return; 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate va_start(args, fmt); 54*0Sstevel@tonic-gate if (_cryptodebug_prefix == NULL) { 55*0Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmt, args); 56*0Sstevel@tonic-gate } else { 57*0Sstevel@tonic-gate (void) snprintf(fmtbuf, sizeof (fmtbuf), "%s: %s", 58*0Sstevel@tonic-gate _cryptodebug_prefix, fmt); 59*0Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmtbuf, args); 60*0Sstevel@tonic-gate } 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate if (_cryptodebug_syslog) { 63*0Sstevel@tonic-gate syslog(LOG_DEBUG, msgbuf); 64*0Sstevel@tonic-gate } else { 65*0Sstevel@tonic-gate (void) fprintf(stderr, "%s\n", msgbuf); 66*0Sstevel@tonic-gate } 67*0Sstevel@tonic-gate va_end(args); 68*0Sstevel@tonic-gate } 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* 71*0Sstevel@tonic-gate * cryptoerror 72*0Sstevel@tonic-gate * 73*0Sstevel@tonic-gate * This is intended to be used both by interactive commands like cryptoadm(1m) 74*0Sstevel@tonic-gate * digest(1) etc, and by libraries libpkcs11, libelfsign etc. 75*0Sstevel@tonic-gate * 76*0Sstevel@tonic-gate * A library probably wants most (all?) of its errors going to syslog but 77*0Sstevel@tonic-gate * commands are usually happy for them to go to stderr. 78*0Sstevel@tonic-gate * 79*0Sstevel@tonic-gate * If a syslog priority is passed we log on that priority. Otherwise we 80*0Sstevel@tonic-gate * use LOG_STDERR to mean use stderr instead. LOG_STDERR is defined in 81*0Sstevel@tonic-gate * cryptoutil.h 82*0Sstevel@tonic-gate */ 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate /*PRINTFLIKE2*/ 85*0Sstevel@tonic-gate void 86*0Sstevel@tonic-gate cryptoerror(int priority, const char *fmt, ...) 87*0Sstevel@tonic-gate { 88*0Sstevel@tonic-gate char fmtbuf[BUFSIZ]; 89*0Sstevel@tonic-gate char msgbuf[BUFSIZ]; 90*0Sstevel@tonic-gate va_list args; 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate if (fmt == NULL) 93*0Sstevel@tonic-gate return; 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate va_start(args, fmt); 96*0Sstevel@tonic-gate if (_cryptodebug_prefix == NULL) { 97*0Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmt, args); 98*0Sstevel@tonic-gate } else { 99*0Sstevel@tonic-gate (void) snprintf(fmtbuf, sizeof (fmtbuf), "%s: %s", 100*0Sstevel@tonic-gate _cryptodebug_prefix, fmt); 101*0Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmtbuf, args); 102*0Sstevel@tonic-gate } 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate if ((priority == LOG_STDERR) || (priority < 0)) { 105*0Sstevel@tonic-gate (void) fprintf(stderr, "%s\n", msgbuf); 106*0Sstevel@tonic-gate } else { 107*0Sstevel@tonic-gate syslog(priority, msgbuf); 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate va_end(args); 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate void 113*0Sstevel@tonic-gate cryptodebug_init(const char *prefix) 114*0Sstevel@tonic-gate { 115*0Sstevel@tonic-gate char *envval = NULL; 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate if (prefix != NULL) { 118*0Sstevel@tonic-gate _cryptodebug_prefix = strdup(prefix); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate if (_cryptodebug_enabled == -1) { 122*0Sstevel@tonic-gate envval = getenv(CRYPTO_DEBUG_ENV); 123*0Sstevel@tonic-gate /* 124*0Sstevel@tonic-gate * If unset or it isn't one of syslog or stderr 125*0Sstevel@tonic-gate * disable debug. 126*0Sstevel@tonic-gate */ 127*0Sstevel@tonic-gate if (envval == NULL || (strcmp(envval, "") == 0)) { 128*0Sstevel@tonic-gate _cryptodebug_enabled = 0; 129*0Sstevel@tonic-gate return; 130*0Sstevel@tonic-gate } else if (strcmp(envval, "stderr") == 0) { 131*0Sstevel@tonic-gate _cryptodebug_syslog = B_FALSE; 132*0Sstevel@tonic-gate _cryptodebug_enabled = 1; 133*0Sstevel@tonic-gate } else if (strcmp(envval, "syslog") == 0) { 134*0Sstevel@tonic-gate _cryptodebug_syslog = B_TRUE; 135*0Sstevel@tonic-gate _cryptodebug_enabled = 1; 136*0Sstevel@tonic-gate } 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate openlog(_cryptodebug_prefix, LOG_PID, LOG_USER); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate #pragma fini(_cryptodebug_fini) 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate static void 145*0Sstevel@tonic-gate _cryptodebug_fini(void) 146*0Sstevel@tonic-gate { 147*0Sstevel@tonic-gate if (_cryptodebug_prefix != NULL) 148*0Sstevel@tonic-gate free(_cryptodebug_prefix); 149*0Sstevel@tonic-gate } 150