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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2009 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* Glenn Fowler
* AT&T Research
*
* return error message string given errno
*/
#include <ast.h>
#include <error.h>
#include "FEATURE/errno"
#undef strerror
#if !defined(sys_errlist) && !_def_errno_sys_errlist
#if _dat_sys_errlist
extern char* sys_errlist[];
#else
#undef _dat_sys_nerr
char* sys_errlist[] = { 0 };
#endif
#endif
#if !defined(sys_nerr) && !_def_errno_sys_nerr
#if _dat_sys_nerr
extern int sys_nerr;
#else
#undef _dat_sys_nerr
int sys_nerr = 0;
#endif
#endif
#if _lib_strerror
extern char* strerror(int);
#endif
#if _PACKAGE_astsa
#define fmtbuf(n) ((n),tmp)
static char tmp[32];
#endif
char*
_ast_strerror(int err)
{
char* msg;
int z;
#if _lib_strerror
z = errno;
msg = strerror(err);
errno = z;
#else
if (err > 0 && err <= sys_nerr)
msg = (char*)sys_errlist[err];
else
msg = 0;
#endif
if (msg)
{
#if !_PACKAGE_astsa
if (ERROR_translating())
{
#if _lib_strerror
static int sys;
if (!sys)
{
char* s;
char* t;
char* p;
#if _lib_strerror
/*
* stash the pending strerror() msg
*/
msg = strcpy(fmtbuf(strlen(msg) + 1), msg);
#endif
/*
* make sure that strerror() translates
*/
if (!(s = strerror(1)))
sys = -1;
else
{
t = fmtbuf(z = strlen(s) + 1);
strcpy(t, s);
p = setlocale(LC_MESSAGES, NiL);
setlocale(LC_MESSAGES, "C");
sys = (s = strerror(1)) && strcmp(s, t) ? 1 : -1;
setlocale(LC_MESSAGES, p);
}
}
if (sys > 0)
return msg;
#endif
return ERROR_translate(NiL, NiL, "errlist", msg);
}
#endif
return msg;
}
msg = fmtbuf(z = 32);
sfsprintf(msg, z, ERROR_translate(NiL, NiL, "errlist", "Error %d"), err);
return msg;
}
#if !_lib_strerror
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern char*
strerror(int err)
{
return _ast_strerror(err);
}
#endif
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