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comparison packages/error/current/src/strerror.cxx @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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-1:000000000000 0:3111d98ba7b3
1 //===========================================================================
2 //
3 // strerror.cxx
4 //
5 // ANSI error code string routine
6 //
7 //===========================================================================
8 //####COPYRIGHTBEGIN####
9 //
10 // -------------------------------------------
11 // The contents of this file are subject to the Cygnus eCos Public License
12 // Version 1.0 (the "License"); you may not use this file except in
13 // compliance with the License. You may obtain a copy of the License at
14 // http://sourceware.cygnus.com/ecos
15 //
16 // Software distributed under the License is distributed on an "AS IS"
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
18 // License for the specific language governing rights and limitations under
19 // the License.
20 //
21 // The Original Code is eCos - Embedded Cygnus Operating System, released
22 // September 30, 1998.
23 //
24 // The Initial Developer of the Original Code is Cygnus. Portions created
25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
26 // -------------------------------------------
27 //
28 //####COPYRIGHTEND####
29 //===========================================================================
30 //#####DESCRIPTIONBEGIN####
31 //
32 // Author(s): jlarmour@cygnus.co.uk
33 // Contributors: jlarmour@cygnus.co.uk
34 // Date: 1998-06-11
35 // Purpose: To provide the strerror() implementation
36 // Description: This implements strerror() as described in ANSI chap 7.11.6.2
37 // Usage: See <cyg/error/codes.h>
38 //
39 //####DESCRIPTIONEND####
40 //
41 //===========================================================================
42
43
44 // CONFIGURATION
45
46 #include <pkgconf/error.h> // Configuration header
47
48 // Include the C library?
49 #ifdef CYGPKG_ERROR
50
51 // INCLUDES
52
53 #include <cyg/infra/cyg_type.h> // Common project-wide type definitions
54 #include <cyg/infra/cyg_trac.h> // Tracing support
55 #include <cyg/error/codes.h> // Error code definitions and header for this
56 // file
57
58 // EXPORTED SYMBOLS
59
60 externC char *
61 strerror( int errnum ) __attribute__ ((weak, alias("_strerror") ));
62
63 // FUNCTIONS
64
65 externC char *
66 _strerror( int errnum )
67 {
68 register char *s;
69
70 CYG_REPORT_FUNCNAMETYPE( "_strerror", "String form of error is \"%s\"" );
71
72 switch (errnum)
73 {
74
75 #ifdef ENOERR
76 case ENOERR:
77 s = "No error";
78 break;
79 #endif
80
81 #ifdef EPERM
82 case EPERM:
83 s = "Not permitted";
84 break;
85 #endif
86
87 #ifdef ENOENT
88 case ENOENT:
89 s = "No such entity";
90 break;
91 #endif
92
93 #ifdef ESRCH
94 case ESRCH:
95 s = "No such process";
96 break;
97 #endif
98
99 #ifdef EINTR
100 case EINTR:
101 s = "Operation interrupted";
102 break;
103 #endif
104
105 #ifdef EIO
106 case EIO:
107 s = "I/O error";
108 break;
109 #endif
110
111 #ifdef EBADF
112 case EBADF:
113 s = "Bad file handle";
114 break;
115 #endif
116
117 #ifdef EAGAIN
118 case EAGAIN:
119 s = "Try again later";
120 break;
121 #endif
122
123 #ifdef ENOMEM
124 case ENOMEM:
125 s = "Out of memory";
126 break;
127 #endif
128
129 #ifdef EBUSY
130 case EBUSY:
131 s = "Resource busy";
132 break;
133 #endif
134
135 #ifdef ENODEV
136 case ENODEV:
137 s = "No such device";
138 break;
139 #endif
140
141 #ifdef EINVAL
142 case EINVAL:
143 s = "Invalid argument";
144 break;
145 #endif
146
147 #ifdef EMFILE
148 case EMFILE:
149 s = "Too many open files";
150 break;
151 #endif
152
153 #ifdef EDOM
154 case EDOM:
155 s = "Argument to math function outside valid domain";
156 break;
157 #endif
158
159 #ifdef ERANGE
160 case ERANGE:
161 s = "Math result cannot be represented";
162 break;
163 #endif
164
165 #ifdef ENOSYS
166 case ENOSYS:
167 s = "Function not implemented";
168 break;
169 #endif
170
171 #ifdef EEOF
172 case EEOF:
173 s = "End of file reached";
174 break;
175 #endif
176
177 #ifdef ENOSUPP
178 case ENOSUPP:
179 s = "Operation not supported";
180 break;
181 #endif
182
183 #ifdef EDEVNOSUPP
184 case EDEVNOSUPP:
185 s = "Device does not support this operation";
186 break;
187 #endif
188
189 default:
190 s = "Unknown error";
191 break;
192
193 } // switch
194
195 CYG_REPORT_RETVAL(s);
196
197 return s;
198 } // _strerror()
199
200 #endif // ifdef CYGPKG_ERROR
201
202 // EOF strerror.cxx