diff options
Diffstat (limited to 'usr/src/lib/libast/common/string/strerror.c')
| -rw-r--r-- | usr/src/lib/libast/common/string/strerror.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/string/strerror.c b/usr/src/lib/libast/common/string/strerror.c new file mode 100644 index 0000000000..d053683052 --- /dev/null +++ b/usr/src/lib/libast/common/string/strerror.c @@ -0,0 +1,147 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* 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 |