1 #include <config.h> 2 3 #if !HAVE_STRERROR 4 /* 5 * Copyright (c) 1988 Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the University of California, Berkeley. The name of the 14 * University may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 */ 20 21 #if defined(LIBC_SCCS) && !defined(lint) 22 static const char sccsid[] = "@(#)strerror.c 5.1 (Berkeley) 4/9/89"; 23 #endif /* LIBC_SCCS and not lint */ 24 25 #include <sys/types.h> 26 27 #include <stdio.h> 28 #include <string.h> 29 30 #include "l_stdlib.h" 31 32 char * 33 strerror( 34 int errnum 35 ) 36 { 37 extern int sys_nerr; 38 extern char *sys_errlist[]; 39 static char ebuf[20]; 40 41 if ((unsigned int)errnum < sys_nerr) 42 return sys_errlist[errnum]; 43 snprintf(ebuf, sizeof(ebuf), "Unknown error: %d", errnum); 44 45 return ebuf; 46 } 47 #else 48 NONEMPTY_TRANSLATION_UNIT 49 #endif 50