1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 3*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 4*7c478bd9Sstevel@tonic-gate */ 5*7c478bd9Sstevel@tonic-gate 6*7c478bd9Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 7*7c478bd9Sstevel@tonic-gate static const char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93"; 8*7c478bd9Sstevel@tonic-gate static const char rcsid[] = "$Id: strerror.c,v 8.7 2001/08/28 11:48:10 marka Exp $"; 9*7c478bd9Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 10*7c478bd9Sstevel@tonic-gate 11*7c478bd9Sstevel@tonic-gate /* 12*7c478bd9Sstevel@tonic-gate * Copyright (c) 1988, 1993 13*7c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 14*7c478bd9Sstevel@tonic-gate * 15*7c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 16*7c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions 17*7c478bd9Sstevel@tonic-gate * are met: 18*7c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 19*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 20*7c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 21*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 22*7c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 23*7c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 24*7c478bd9Sstevel@tonic-gate * must display the following acknowledgement: 25*7c478bd9Sstevel@tonic-gate * This product includes software developed by the University of 26*7c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors. 27*7c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 28*7c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 29*7c478bd9Sstevel@tonic-gate * without specific prior written permission. 30*7c478bd9Sstevel@tonic-gate * 31*7c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32*7c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33*7c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34*7c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35*7c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36*7c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37*7c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38*7c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39*7c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40*7c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41*7c478bd9Sstevel@tonic-gate * SUCH DAMAGE. 42*7c478bd9Sstevel@tonic-gate */ 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate #include "port_before.h" 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 49*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 50*7c478bd9Sstevel@tonic-gate 51*7c478bd9Sstevel@tonic-gate #include <string.h> 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate #include "port_after.h" 54*7c478bd9Sstevel@tonic-gate 55*7c478bd9Sstevel@tonic-gate #ifndef NEED_STRERROR 56*7c478bd9Sstevel@tonic-gate int __strerror_unneeded__; 57*7c478bd9Sstevel@tonic-gate #else 58*7c478bd9Sstevel@tonic-gate 59*7c478bd9Sstevel@tonic-gate #ifdef USE_SYSERROR_LIST 60*7c478bd9Sstevel@tonic-gate extern int sys_nerr; 61*7c478bd9Sstevel@tonic-gate extern char *sys_errlist[]; 62*7c478bd9Sstevel@tonic-gate #endif 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate const char * 65*7c478bd9Sstevel@tonic-gate isc_strerror(int num) { 66*7c478bd9Sstevel@tonic-gate #define UPREFIX "Unknown error: " 67*7c478bd9Sstevel@tonic-gate static char ebuf[40] = UPREFIX; /* 64-bit number + slop */ 68*7c478bd9Sstevel@tonic-gate u_int errnum; 69*7c478bd9Sstevel@tonic-gate char *p, *t; 70*7c478bd9Sstevel@tonic-gate const char *ret; 71*7c478bd9Sstevel@tonic-gate char tmp[40]; 72*7c478bd9Sstevel@tonic-gate 73*7c478bd9Sstevel@tonic-gate errnum = num; /* convert to unsigned */ 74*7c478bd9Sstevel@tonic-gate #ifdef USE_SYSERROR_LIST 75*7c478bd9Sstevel@tonic-gate if (errnum < sys_nerr) 76*7c478bd9Sstevel@tonic-gate return (sys_errlist[errnum]); 77*7c478bd9Sstevel@tonic-gate #else 78*7c478bd9Sstevel@tonic-gate #undef strerror 79*7c478bd9Sstevel@tonic-gate ret = strerror(num); /* call strerror() in libc */ 80*7c478bd9Sstevel@tonic-gate if (ret != NULL) 81*7c478bd9Sstevel@tonic-gate return(ret); 82*7c478bd9Sstevel@tonic-gate #endif 83*7c478bd9Sstevel@tonic-gate 84*7c478bd9Sstevel@tonic-gate /* Do this by hand, so we don't include stdio(3). */ 85*7c478bd9Sstevel@tonic-gate t = tmp; 86*7c478bd9Sstevel@tonic-gate do { 87*7c478bd9Sstevel@tonic-gate *t++ = "0123456789"[errnum % 10]; 88*7c478bd9Sstevel@tonic-gate } while (errnum /= 10); 89*7c478bd9Sstevel@tonic-gate for (p = ebuf + sizeof(UPREFIX) - 1;;) { 90*7c478bd9Sstevel@tonic-gate *p++ = *--t; 91*7c478bd9Sstevel@tonic-gate if (t <= tmp) 92*7c478bd9Sstevel@tonic-gate break; 93*7c478bd9Sstevel@tonic-gate } 94*7c478bd9Sstevel@tonic-gate return (ebuf); 95*7c478bd9Sstevel@tonic-gate } 96*7c478bd9Sstevel@tonic-gate 97*7c478bd9Sstevel@tonic-gate #endif /*NEED_STRERROR*/ 98