17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*a7e661a2SAnthony Scarpino * Common Development and Distribution License (the "License"). 6*a7e661a2SAnthony Scarpino * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*a7e661a2SAnthony Scarpino * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #include <stdio.h> 277c478bd9Sstevel@tonic-gate #include <stdlib.h> 287c478bd9Sstevel@tonic-gate #include <stdarg.h> 297c478bd9Sstevel@tonic-gate #include <syslog.h> 307c478bd9Sstevel@tonic-gate #include <string.h> 317c478bd9Sstevel@tonic-gate #include <cryptoutil.h> 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #define CRYPTO_DEBUG_ENV "SUNW_CRYPTO_DEBUG" 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate static char *_cryptodebug_prefix = NULL; 367c478bd9Sstevel@tonic-gate static int _cryptodebug_enabled = -1; /* -1 unknown, 0 disabled, 1 enabled */ 37*a7e661a2SAnthony Scarpino static int _cryptoerror_enabled = 1; /* 0 disabled, 1 enabled */ 387c478bd9Sstevel@tonic-gate static boolean_t _cryptodebug_syslog = B_TRUE; 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate /*PRINTFLIKE1*/ 417c478bd9Sstevel@tonic-gate void 427c478bd9Sstevel@tonic-gate cryptodebug(const char *fmt, ...) 437c478bd9Sstevel@tonic-gate { 447c478bd9Sstevel@tonic-gate va_list args; 457c478bd9Sstevel@tonic-gate char fmtbuf[BUFSIZ]; 467c478bd9Sstevel@tonic-gate char msgbuf[BUFSIZ]; 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate if (fmt == NULL || _cryptodebug_enabled != 1) 497c478bd9Sstevel@tonic-gate return; 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate va_start(args, fmt); 527c478bd9Sstevel@tonic-gate if (_cryptodebug_prefix == NULL) { 537c478bd9Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmt, args); 547c478bd9Sstevel@tonic-gate } else { 557c478bd9Sstevel@tonic-gate (void) snprintf(fmtbuf, sizeof (fmtbuf), "%s: %s", 567c478bd9Sstevel@tonic-gate _cryptodebug_prefix, fmt); 577c478bd9Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmtbuf, args); 587c478bd9Sstevel@tonic-gate } 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate if (_cryptodebug_syslog) { 617c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, msgbuf); 627c478bd9Sstevel@tonic-gate } else { 637c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s\n", msgbuf); 647c478bd9Sstevel@tonic-gate } 657c478bd9Sstevel@tonic-gate va_end(args); 667c478bd9Sstevel@tonic-gate } 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate /* 697c478bd9Sstevel@tonic-gate * cryptoerror 707c478bd9Sstevel@tonic-gate * 717c478bd9Sstevel@tonic-gate * This is intended to be used both by interactive commands like cryptoadm(1m) 727c478bd9Sstevel@tonic-gate * digest(1) etc, and by libraries libpkcs11, libelfsign etc. 737c478bd9Sstevel@tonic-gate * 747c478bd9Sstevel@tonic-gate * A library probably wants most (all?) of its errors going to syslog but 757c478bd9Sstevel@tonic-gate * commands are usually happy for them to go to stderr. 767c478bd9Sstevel@tonic-gate * 777c478bd9Sstevel@tonic-gate * If a syslog priority is passed we log on that priority. Otherwise we 787c478bd9Sstevel@tonic-gate * use LOG_STDERR to mean use stderr instead. LOG_STDERR is defined in 797c478bd9Sstevel@tonic-gate * cryptoutil.h 807c478bd9Sstevel@tonic-gate */ 817c478bd9Sstevel@tonic-gate 827c478bd9Sstevel@tonic-gate /*PRINTFLIKE2*/ 837c478bd9Sstevel@tonic-gate void 847c478bd9Sstevel@tonic-gate cryptoerror(int priority, const char *fmt, ...) 857c478bd9Sstevel@tonic-gate { 867c478bd9Sstevel@tonic-gate char fmtbuf[BUFSIZ]; 877c478bd9Sstevel@tonic-gate char msgbuf[BUFSIZ]; 887c478bd9Sstevel@tonic-gate va_list args; 897c478bd9Sstevel@tonic-gate 90*a7e661a2SAnthony Scarpino if (fmt == NULL || _cryptoerror_enabled == 0) 917c478bd9Sstevel@tonic-gate return; 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate va_start(args, fmt); 947c478bd9Sstevel@tonic-gate if (_cryptodebug_prefix == NULL) { 957c478bd9Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmt, args); 967c478bd9Sstevel@tonic-gate } else { 977c478bd9Sstevel@tonic-gate (void) snprintf(fmtbuf, sizeof (fmtbuf), "%s: %s", 987c478bd9Sstevel@tonic-gate _cryptodebug_prefix, fmt); 997c478bd9Sstevel@tonic-gate (void) vsnprintf(msgbuf, sizeof (msgbuf), fmtbuf, args); 1007c478bd9Sstevel@tonic-gate } 1017c478bd9Sstevel@tonic-gate 1027c478bd9Sstevel@tonic-gate if ((priority == LOG_STDERR) || (priority < 0)) { 1037c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s\n", msgbuf); 1047c478bd9Sstevel@tonic-gate } else { 1057c478bd9Sstevel@tonic-gate syslog(priority, msgbuf); 1067c478bd9Sstevel@tonic-gate } 1077c478bd9Sstevel@tonic-gate va_end(args); 1087c478bd9Sstevel@tonic-gate } 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate void 111*a7e661a2SAnthony Scarpino cryptoerror_off() 112*a7e661a2SAnthony Scarpino { 113*a7e661a2SAnthony Scarpino _cryptoerror_enabled = 0; 114*a7e661a2SAnthony Scarpino } 115*a7e661a2SAnthony Scarpino 116*a7e661a2SAnthony Scarpino void 117*a7e661a2SAnthony Scarpino cryptoerror_on() 118*a7e661a2SAnthony Scarpino { 119*a7e661a2SAnthony Scarpino _cryptoerror_enabled = 1; 120*a7e661a2SAnthony Scarpino } 121*a7e661a2SAnthony Scarpino 122*a7e661a2SAnthony Scarpino void 1237c478bd9Sstevel@tonic-gate cryptodebug_init(const char *prefix) 1247c478bd9Sstevel@tonic-gate { 1257c478bd9Sstevel@tonic-gate char *envval = NULL; 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate if (prefix != NULL) { 1287c478bd9Sstevel@tonic-gate _cryptodebug_prefix = strdup(prefix); 1297c478bd9Sstevel@tonic-gate } 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate if (_cryptodebug_enabled == -1) { 1327c478bd9Sstevel@tonic-gate envval = getenv(CRYPTO_DEBUG_ENV); 1337c478bd9Sstevel@tonic-gate /* 1347c478bd9Sstevel@tonic-gate * If unset or it isn't one of syslog or stderr 1357c478bd9Sstevel@tonic-gate * disable debug. 1367c478bd9Sstevel@tonic-gate */ 1377c478bd9Sstevel@tonic-gate if (envval == NULL || (strcmp(envval, "") == 0)) { 1387c478bd9Sstevel@tonic-gate _cryptodebug_enabled = 0; 1397c478bd9Sstevel@tonic-gate return; 1407c478bd9Sstevel@tonic-gate } else if (strcmp(envval, "stderr") == 0) { 1417c478bd9Sstevel@tonic-gate _cryptodebug_syslog = B_FALSE; 1427c478bd9Sstevel@tonic-gate _cryptodebug_enabled = 1; 1437c478bd9Sstevel@tonic-gate } else if (strcmp(envval, "syslog") == 0) { 1447c478bd9Sstevel@tonic-gate _cryptodebug_syslog = B_TRUE; 1457c478bd9Sstevel@tonic-gate _cryptodebug_enabled = 1; 1467c478bd9Sstevel@tonic-gate } 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate openlog(_cryptodebug_prefix, LOG_PID, LOG_USER); 1507c478bd9Sstevel@tonic-gate } 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate #pragma fini(_cryptodebug_fini) 1537c478bd9Sstevel@tonic-gate 1547c478bd9Sstevel@tonic-gate static void 1557c478bd9Sstevel@tonic-gate _cryptodebug_fini(void) 1567c478bd9Sstevel@tonic-gate { 1577c478bd9Sstevel@tonic-gate if (_cryptodebug_prefix != NULL) 1587c478bd9Sstevel@tonic-gate free(_cryptodebug_prefix); 1597c478bd9Sstevel@tonic-gate } 160