17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * Copyright (c) 1988, 1993 37c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 47c478bd9Sstevel@tonic-gate * 57c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 67c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions 77c478bd9Sstevel@tonic-gate * are met: 87c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 97c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 107c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 117c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 127c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 137c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 147c478bd9Sstevel@tonic-gate * must display the following acknowledgement: 157c478bd9Sstevel@tonic-gate * This product includes software developed by the University of 167c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors. 177c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 187c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 197c478bd9Sstevel@tonic-gate * without specific prior written permission. 207c478bd9Sstevel@tonic-gate * 217c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 227c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 237c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 247c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 257c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 267c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 277c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 287c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 297c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 307c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 317c478bd9Sstevel@tonic-gate * SUCH DAMAGE. 327c478bd9Sstevel@tonic-gate */ 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate #include "port_before.h" 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #include <sys/param.h> 377c478bd9Sstevel@tonic-gate #include <sys/types.h> 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #include <string.h> 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #include "port_after.h" 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #ifndef NEED_STRERROR 447c478bd9Sstevel@tonic-gate int __strerror_unneeded__; 457c478bd9Sstevel@tonic-gate #else 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate #ifdef USE_SYSERROR_LIST 487c478bd9Sstevel@tonic-gate extern int sys_nerr; 497c478bd9Sstevel@tonic-gate extern char *sys_errlist[]; 507c478bd9Sstevel@tonic-gate #endif 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate const char * 537c478bd9Sstevel@tonic-gate isc_strerror(int num) { 547c478bd9Sstevel@tonic-gate #define UPREFIX "Unknown error: " 55*9525b14bSRao Shoaib static char ebuf[40] = UPREFIX; /*%< 64-bit number + slop */ 567c478bd9Sstevel@tonic-gate u_int errnum; 577c478bd9Sstevel@tonic-gate char *p, *t; 58*9525b14bSRao Shoaib #ifndef USE_SYSERROR_LIST 597c478bd9Sstevel@tonic-gate const char *ret; 60*9525b14bSRao Shoaib #endif 617c478bd9Sstevel@tonic-gate char tmp[40]; 627c478bd9Sstevel@tonic-gate 63*9525b14bSRao Shoaib errnum = num; /*%< convert to unsigned */ 647c478bd9Sstevel@tonic-gate #ifdef USE_SYSERROR_LIST 65*9525b14bSRao Shoaib if (errnum < (u_int)sys_nerr) 667c478bd9Sstevel@tonic-gate return (sys_errlist[errnum]); 677c478bd9Sstevel@tonic-gate #else 687c478bd9Sstevel@tonic-gate #undef strerror 69*9525b14bSRao Shoaib ret = strerror(num); /*%< call strerror() in libc */ 707c478bd9Sstevel@tonic-gate if (ret != NULL) 717c478bd9Sstevel@tonic-gate return(ret); 727c478bd9Sstevel@tonic-gate #endif 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate /* Do this by hand, so we don't include stdio(3). */ 757c478bd9Sstevel@tonic-gate t = tmp; 767c478bd9Sstevel@tonic-gate do { 777c478bd9Sstevel@tonic-gate *t++ = "0123456789"[errnum % 10]; 787c478bd9Sstevel@tonic-gate } while (errnum /= 10); 797c478bd9Sstevel@tonic-gate for (p = ebuf + sizeof(UPREFIX) - 1;;) { 807c478bd9Sstevel@tonic-gate *p++ = *--t; 817c478bd9Sstevel@tonic-gate if (t <= tmp) 827c478bd9Sstevel@tonic-gate break; 837c478bd9Sstevel@tonic-gate } 847c478bd9Sstevel@tonic-gate return (ebuf); 857c478bd9Sstevel@tonic-gate } 867c478bd9Sstevel@tonic-gate 877c478bd9Sstevel@tonic-gate #endif /*NEED_STRERROR*/ 88*9525b14bSRao Shoaib 89*9525b14bSRao Shoaib /*! \file */ 90