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62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* Version of strerror() for systems that need it.
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Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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NAME
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strerror -- map an error number to an error message string
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SYNOPSIS
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#include <string.h>
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char *strerror (int errnum)
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DESCRIPTION
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Returns a pointer to a string containing an error message, the
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contents of which are implementation defined. The implementation
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shall behave as if no library function calls strerror. The string
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pointed to shall not be modified by the caller and is only guaranteed
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to be valid until a subsequent call to strerror.
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BUGS
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Requires that the system have sys_errlist and sys_nerr.
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*/
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#ifndef HAVE_STRERROR
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extern int sys_nerr;
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extern char *sys_errlist[];
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char *
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strerror (code)
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int code;
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{
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return (((code < 0) || (code >= sys_nerr))
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? "(unknown error)"
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: sys_errlist [code]);
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}
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#endif /* HAVE_STRERROR */
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/* end of strerror.c */
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