1 /* $NetBSD: strerror.c,v 1.1.1.1 2016/01/13 18:41:48 christos Exp $ */ 2 3 /* Copyright (C) 1989, 1990, 1991, 1992, 2001, 2003 4 Free Software Foundation, Inc. 5 Written by James Clark (jjc@jclark.com) 6 7 This file is part of groff. 8 9 groff is free software; you can redistribute it and/or modify it under 10 the terms of the GNU General Public License as published by the Free 11 Software Foundation; either version 2, or (at your option) any later 12 version. 13 14 groff is distributed in the hope that it will be useful, but WITHOUT ANY 15 WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 for more details. 18 19 You should have received a copy of the GNU General Public License along 20 with groff; see the file COPYING. If not, write to the Free Software 21 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23 #ifdef HAVE_CONFIG_H 24 #include <config.h> 25 #endif 26 27 #include <stdio.h> 28 #include <errno.h> 29 #include <stdlib.h> /* for MinGW */ 30 31 #define INT_DIGITS 19 /* enough for 64 bit integer */ 32 33 #ifndef HAVE_SYS_NERR 34 extern int sys_nerr; 35 #endif 36 #ifndef HAVE_SYS_ERRLIST 37 extern char *sys_errlist[]; 38 #endif 39 40 char *strerror(n) 41 int n; 42 { 43 static char buf[sizeof("Error ") + 1 + INT_DIGITS]; 44 if (n >= 0 && n < sys_nerr && sys_errlist[n] != 0) 45 return sys_errlist[n]; 46 else { 47 sprintf(buf, "Error %d", n); 48 return buf; 49 } 50 } 51