/* $OpenBSD: error_message.c,v 1.3 1996/12/14 06:55:56 tholo Exp $ */ /*- * Copyright 1987, 1988 by the Student Information Processing Board * of the Massachusetts Institute of Technology * * Permission to use, copy, modify, and distribute this software * and its documentation for any purpose and without fee is * hereby granted, provided that the above copyright notice * appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, * and that the names of M.I.T. and the M.I.T. S.I.P.B. not be * used in advertising or publicity pertaining to distribution * of the software without specific, written prior permission. * M.I.T. and the M.I.T. S.I.P.B. make no representations about * the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty. */ #include <stdio.h> #include <string.h> #include <errno.h> #include "error_table.h" #ifndef lint static const char rcsid[] = "$OpenBSD: error_message.c,v 1.3 1996/12/14 06:55:56 tholo Exp $"; static const char copyright[] = "Copyright 1986, 1987, 1988 by the Student Information Processing Board\nand the department of Information Systems\nof the Massachusetts Institute of Technology"; #endif static char buffer[25]; struct et_list * _et_list = (struct et_list *) NULL; const char * error_message (code) long code; { int offset; struct et_list *et; int table_num; int started = 0; char *cp; offset = (int)(code & ((1<<ERRCODE_RANGE)-1)); table_num = (int)code - offset; if (!table_num) { #ifdef HAS_SYS_ERRLIST if (offset < sys_nerr) return(sys_errlist[offset]); else goto oops; #else cp = strerror(offset); if (cp) return(cp); else goto oops; #endif } for (et = _et_list; et; et = et->next) { if (et->table->base == table_num) { /* This is the right table */ if (et->table->n_msgs <= offset) goto oops; return(et->table->msgs[offset]); } } oops: strcpy (buffer, "Unknown code "); if (table_num) { strcat (buffer, error_table_name (table_num)); strcat (buffer, " "); } for (cp = buffer; *cp; cp++) ; if (offset >= 100) { *cp++ = '0' + offset / 100; offset %= 100; started++; } if (started || offset >= 10) { *cp++ = '0' + offset / 10; offset %= 10; } *cp++ = '0' + offset; *cp = '\0'; return(buffer); }