1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * *** CAUTION!!! KEEP DOC CONSISTENT---if you change text of a message

    16 * ***            here, change two places:

    17 * ***            1) the leading doc section (alphabetized by macro)

    18 * ***            2) the real text inside switch(errnum)

    19 * FUNCTION

    20 * <<strerror>>---convert error number to string

    21 * INDEX

    22 * strerror

    23 * ANSI_SYNOPSIS

    24 * #include <string.h>

    25 * char *strerror(int <[errnum]>);

    26 * TRAD_SYNOPSIS

    27 * #include <string.h>

    28 * char *strerror(<[errnum]>)

    29 * int <[errnum]>;

    30 * <<strerror>> converts the error number <[errnum]> into a

    31 * string.  The value of <[errnum]> is usually a copy of <<errno>>.

    32 * If <<errnum>> is not a known error number, the result points to an

    33 * empty string.

    34 * RETURNS

    35 * This function returns a pointer to a string.  Your application must

    36 * not modify that string.

    37 * PORTABILITY

    38 * ANSI C requires <<strerror>>, but does not specify the strings used

    39 * for each error number.

    40 * Although this implementation of <<strerror>> is reentrant, ANSI C

    41 * declares that subsequent calls to <<strerror>> may overwrite the

    42 * result string; therefore portable code cannot depend on the reentrancy

    43 * of this subroutine.

    44 * <<strerror>> requires no supporting OS subroutines.

    45 * QUICKREF

    46 * strerror ansi pure

    47 * 

    48 *

    49 */

    50 

    51 

    52 

    53 #include <errno.h>

    54 #include <string.h>

    55 

    56 /**

    57 Get pointer to error message string.

    58 Returns a pointer to a string with the error message

    59 corresponding to the errnum error number.

    60 The returned pointer points to a statically allocated string. 

    61 Further calls to this function will overwrite its content.

    62 @param errnum Error number.

    63 */

    64 EXPORT_C char *

    65 strerror (int errnum)

    66 {

    67   char *error;

    68 

    69   switch (errnum)

    70     {

    71     case EPERM:

    72       error = "Not owner";

    73       break;

    74     case ENOENT:

    75       error = "No such file or directory";

    76       break;

    77     case ESRCH:

    78       error = "No such process";

    79       break;

    80     case EINTR:

    81       error = "Interrupted system call";

    82       break;

    83     case EIO:

    84       error = "I/O error";

    85       break;

    86     case ENXIO:

    87       error = "No such device or address";

    88       break;

    89     case E2BIG:

    90       error = "Arg list too long";

    91       break;

    92     case ENOEXEC:

    93       error = "Exec format error";

    94       break;

    95     case EBADF:

    96       error = "Bad file number";

    97       break;

    98     case ECHILD:

    99       error = "No children";

   100       break;

   101     case EAGAIN:

   102       error = "No more processes";

   103       break;

   104     case ENOMEM:

   105       error = "Not enough space";

   106       break;

   107     case EACCES:

   108       error = "Permission denied";

   109       break;

   110     case EFAULT:

   111       error = "Bad address";

   112       break;

   113     case ENOTBLK:

   114       error = "Block device required";

   115       break;

   116     case EBUSY:

   117       error = "Device or resource busy";

   118       break;

   119     case EEXIST:

   120       error = "File exists";

   121       break;

   122     case EXDEV:

   123       error = "Cross-device link";

   124       break;

   125     case ENODEV:

   126       error = "No such device";

   127       break;

   128     case ENOTDIR:

   129       error = "Not a directory";

   130       break;

   131     case EISDIR:

   132       error = "Is a directory";

   133       break;

   134     case EINVAL:

   135       error = "Invalid argument";

   136       break;

   137     case ENFILE:

   138       error = "Too many open files in system";

   139       break;

   140     case EMFILE:

   141       error = "Too many open files";

   142       break;

   143     case ENOTTY:

   144       error = "Not a character device";

   145       break;

   146     case ETXTBSY:

   147       error = "Text file busy";

   148       break;

   149     case EFBIG:

   150       error = "File too large";

   151       break;

   152     case ENOSPC:

   153       error = "No space left on device";

   154       break;

   155     case ESPIPE:

   156       error = "Illegal seek";

   157       break;

   158     case EROFS:

   159       error = "Read-only file system";

   160       break;

   161     case EMLINK:

   162       error = "Too many links";

   163       break;

   164     case EPIPE:

   165       error = "Broken pipe";

   166       break;

   167     case EDOM:

   168       error = "Math argument";

   169       break;

   170     case ERANGE:

   171       error = "Result too large";

   172       break;

   173     case ENOMSG:

   174       error = "No message of desired type";

   175       break;

   176     case EIDRM:

   177       error = "Identifier removed";

   178       break;

   179     case EDEADLK:

   180       error = "Deadlock";

   181       break;

   182     case ENOLCK:

   183       error = "No lock";

   184       break;

   185     case ENOTSOCK:	error = "Not a socket";				break;

   186     case EADDRNOTAVAIL:	error = "Remote address not available";		break;

   187     case EAFNOSUPPORT:	error = "Address not supported by protocol";	break;

   188     case EISCONN:	error = "Socket already connected";		break;

   189     case ECONNREFUSED:	error = "Connection refused by remote host";	break;

   190     case EADDRINUSE:	error = "Address already in use";		break;

   191     case ETIMEDOUT:	error = "Connection timed out";			break;

   192     case ENOSTR:

   193       error = "Not a stream";

   194       break;

   195     case ETIME:

   196       error = "Stream ioctl timeout";

   197       break;

   198     case ENOSR:

   199       error = "No stream resources";

   200       break;

   201     case ENONET:

   202       error = "Machine is not on the network";

   203       break;

   204     case ENOPKG:

   205       error = "No package";

   206       break;

   207     case EREMOTE:

   208       error = "Resource is remote";

   209       break;

   210     case ENOLINK:

   211       error = "Virtual circuit is gone";

   212       break;

   213     case EADV:

   214       error = "Advertise error";

   215       break;

   216     case ESRMNT:

   217       error = "Srmount error";

   218       break;

   219     case ECOMM:

   220       error = "Communication error";

   221       break;

   222     case EPROTO:

   223       error = "Protocol error";

   224       break;

   225     case EMULTIHOP:

   226       error = "Multihop attempted";

   227       break;

   228     case EBADMSG:

   229       error = "Bad message";

   230       break;

   231     case ELIBACC:

   232       error = "Cannot access a needed shared library";

   233       break;

   234     case ELIBBAD:

   235       error = "Accessing a corrupted shared library";

   236       break;

   237     case ELIBSCN:

   238       error = ".lib section in a.out corrupted";

   239       break;

   240     case ELIBMAX:

   241       error = "Attempting to link in more shared libraries than system limit";

   242       break;

   243     case ELIBEXEC:

   244       error = "Cannot exec a shared library directly";

   245       break;

   246     case ENOSYS:

   247       error = "Function not implemented";

   248       break;

   249     case ENMFILE:

   250       error = "No more files";

   251       break;

   252     case ENOTEMPTY:

   253       error = "Directory not empty";

   254       break;

   255     case ENAMETOOLONG:

   256       error = "File or path name too long";

   257       break;

   258 	case EILSEQ:

   259 	  error = "invalid wide-character encoding";

   260       break;

   261 	default:

   262 	error = "";

   263       break;

   264     }

   265 

   266   return error;

   267 }