808 lines
14 KiB
C
808 lines
14 KiB
C
/***
|
|
**** CAUTION!!! KEEP DOC CONSISTENT---if you change text of a message
|
|
**** here, change two places:
|
|
**** 1) the leading doc section (alphabetized by macro)
|
|
**** 2) the real text inside switch(errnum)
|
|
***/
|
|
|
|
/*
|
|
FUNCTION
|
|
<<strerror>>---convert error number to string
|
|
|
|
INDEX
|
|
strerror
|
|
|
|
ANSI_SYNOPSIS
|
|
#include <string.h>
|
|
char *strerror(int <[errnum]>);
|
|
|
|
TRAD_SYNOPSIS
|
|
#include <string.h>
|
|
char *strerror(<[errnum]>)
|
|
int <[errnum]>;
|
|
|
|
DESCRIPTION
|
|
<<strerror>> converts the error number <[errnum]> into a
|
|
string. The value of <[errnum]> is usually a copy of <<errno>>.
|
|
If <<errnum>> is not a known error number, the result points to an
|
|
empty string.
|
|
|
|
This implementation of <<strerror>> prints out the following strings
|
|
for each of the values defined in `<<errno.h>>':
|
|
|
|
o+
|
|
o E2BIG
|
|
Arg list too long
|
|
|
|
o EACCES
|
|
Permission denied
|
|
|
|
o EADDRINUSE
|
|
Address already in use
|
|
|
|
o EADV
|
|
Advertise error
|
|
|
|
o EAFNOSUPPORT
|
|
Address family not supported by protocol family
|
|
|
|
o EAGAIN
|
|
No more processes
|
|
|
|
o EALREADY
|
|
Socket already connected
|
|
|
|
o EBADF
|
|
Bad file number
|
|
|
|
o EBADMSG
|
|
Bad message
|
|
|
|
o EBUSY
|
|
Device or resource busy
|
|
|
|
o ECHILD
|
|
No children
|
|
|
|
o ECOMM
|
|
Communication error
|
|
|
|
o ECONNABORTED
|
|
Software caused connection abort
|
|
|
|
o ECONNREFUSED
|
|
Connection refused
|
|
|
|
o EDEADLK
|
|
Deadlock
|
|
|
|
o EDESTADDRREQ
|
|
Destination address required
|
|
|
|
o EEXIST
|
|
File exists
|
|
|
|
o EDOM
|
|
Math argument
|
|
|
|
o EFAULT
|
|
Bad address
|
|
|
|
o EFBIG
|
|
File too large
|
|
|
|
o EHOSTDOWN
|
|
Host is down
|
|
|
|
o EHOSTUNREACH
|
|
Host is unreachable
|
|
|
|
o EIDRM
|
|
Identifier removed
|
|
|
|
o EINPROGRESS
|
|
Connection already in progress
|
|
|
|
o EINTR
|
|
Interrupted system call
|
|
|
|
o EINVAL
|
|
Invalid argument
|
|
|
|
o EIO
|
|
I/O error
|
|
|
|
o EISCONN
|
|
Socket is already connected
|
|
|
|
o EISDIR
|
|
Is a directory
|
|
|
|
o ELIBACC
|
|
Cannot access a needed shared library
|
|
|
|
o ELIBBAD
|
|
Accessing a corrupted shared library
|
|
|
|
o ELIBEXEC
|
|
Cannot exec a shared library directly
|
|
|
|
o ELIBMAX
|
|
Attempting to link in more shared libraries than system limit
|
|
|
|
o ELIBSCN
|
|
<<.lib>> section in a.out corrupted
|
|
|
|
o EMFILE
|
|
Too many open files
|
|
|
|
o EMLINK
|
|
Too many links
|
|
|
|
o EMSGSIZE
|
|
Message too long
|
|
|
|
o EMULTIHOP
|
|
Multihop attempted
|
|
|
|
o ENAMETOOLONG
|
|
File or path name too long
|
|
|
|
o ENETDOWN
|
|
Network interface not configured
|
|
|
|
o ENETUNREACH
|
|
Network is unreachable
|
|
|
|
o ENFILE
|
|
Too many open files in system
|
|
|
|
o ENODEV
|
|
No such device
|
|
|
|
o ENOENT
|
|
No such file or directory
|
|
|
|
o ENOEXEC
|
|
Exec format error
|
|
|
|
o ENOLCK
|
|
No lock
|
|
|
|
o ENOLINK
|
|
Virtual circuit is gone
|
|
|
|
o ENOMEM
|
|
Not enough space
|
|
|
|
o ENOMSG
|
|
No message of desired type
|
|
|
|
o ENONET
|
|
Machine is not on the network
|
|
|
|
o ENOPKG
|
|
No package
|
|
|
|
o ENOPROTOOPT
|
|
Protocol not available
|
|
|
|
o ENOSPC
|
|
No space left on device
|
|
|
|
o ENOSR
|
|
No stream resources
|
|
|
|
o ENOSTR
|
|
Not a stream
|
|
|
|
o ENOSYS
|
|
Function not implemented
|
|
|
|
o ENOTBLK
|
|
Block device required
|
|
|
|
o ENOTCONN
|
|
Socket is not connected
|
|
|
|
o ENOTDIR
|
|
Not a directory
|
|
|
|
o ENOTEMPTY
|
|
Directory not empty
|
|
|
|
o ENOTSOCK
|
|
Socket operation on non-socket
|
|
|
|
o ENOTSUP
|
|
Not supported
|
|
|
|
o ENOTTY
|
|
Not a character device
|
|
|
|
o ENXIO
|
|
No such device or address
|
|
|
|
o EPERM
|
|
Not owner
|
|
|
|
o EPIPE
|
|
Broken pipe
|
|
|
|
o EPROTO
|
|
Protocol error
|
|
|
|
o EPROTOTYPE
|
|
Protocol wrong type for socket
|
|
|
|
o EPROTONOSUPPORT
|
|
Unknown protocol
|
|
|
|
o ERANGE
|
|
Result too large
|
|
|
|
o EREMOTE
|
|
Resource is remote
|
|
|
|
o EROFS
|
|
Read-only file system
|
|
|
|
o ESHUTDOWN
|
|
Can't send after socket shutdown
|
|
|
|
o ESOCKTNOSUPPORT
|
|
Socket type not supported
|
|
|
|
o ESPIPE
|
|
Illegal seek
|
|
|
|
o ESRCH
|
|
No such process
|
|
|
|
o ESRMNT
|
|
Srmount error
|
|
|
|
o ETIME
|
|
Stream ioctl timeout
|
|
|
|
o ETIMEDOUT
|
|
Connection timed out
|
|
|
|
o ETXTBSY
|
|
Text file busy
|
|
|
|
o EXDEV
|
|
Cross-device link
|
|
|
|
o ECANCELED
|
|
Operation canceled
|
|
|
|
o ENOTRECOVERABLE
|
|
State not recoverable
|
|
|
|
o EOWNERDEAD
|
|
Previous owner died
|
|
|
|
o ESTRPIPE
|
|
Strings pipe error
|
|
|
|
o-
|
|
|
|
RETURNS
|
|
This function returns a pointer to a string. Your application must
|
|
not modify that string.
|
|
|
|
PORTABILITY
|
|
ANSI C requires <<strerror>>, but does not specify the strings used
|
|
for each error number.
|
|
|
|
Although this implementation of <<strerror>> is reentrant, ANSI C
|
|
declares that subsequent calls to <<strerror>> may overwrite the
|
|
result string; therefore portable code cannot depend on the reentrancy
|
|
of this subroutine.
|
|
|
|
Although this implementation of <<strerror>> guarantees a non-null
|
|
result with a NUL-terminator, some implementations return <<NULL>>
|
|
on failure. Although POSIX allows <<strerror>> to set <<errno>>
|
|
to EINVAL on failure, this implementation does not do so (unless
|
|
you provide <<_user_strerror>>).
|
|
|
|
POSIX recommends that unknown <[errnum]> result in a message
|
|
including that value, however it is not a requirement and this
|
|
implementation does not provide that information (unless you
|
|
provide <<_user_strerror>>).
|
|
|
|
This implementation of <<strerror>> provides for user-defined
|
|
extensibility. <<errno.h>> defines <[__ELASTERROR]>, which can be
|
|
used as a base for user-defined error values. If the user supplies a
|
|
routine named <<_user_strerror>>, and <[errnum]> passed to
|
|
<<strerror>> does not match any of the supported values,
|
|
<<_user_strerror>> is called with <[errnum]> as its argument.
|
|
|
|
<<_user_strerror>> takes one argument of type <[int]>, and returns a
|
|
character pointer. If <[errnum]> is unknown to <<_user_strerror>>,
|
|
<<_user_strerror>> returns <[NULL]>. The default <<_user_strerror>>
|
|
returns <[NULL]> for all input values.
|
|
|
|
Note that <<_user_sterror>> must be thread-safe and not alter <<errno>>
|
|
if <<strerror_r>> is to comply with POSIX.
|
|
|
|
<<strerror>> requires no supporting OS subroutines.
|
|
|
|
QUICKREF
|
|
strerror ansi pure
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
char *
|
|
_DEFUN (strerror, (errnum),
|
|
int errnum)
|
|
{
|
|
char *error;
|
|
extern char *_user_strerror _PARAMS ((int));
|
|
|
|
switch (errnum)
|
|
{
|
|
/* go32 defines EPERM as EACCES */
|
|
#if defined (EPERM) && (!defined (EACCES) || (EPERM != EACCES))
|
|
case EPERM:
|
|
error = "Not owner";
|
|
break;
|
|
#endif
|
|
#ifdef ENOENT
|
|
case ENOENT:
|
|
error = "No such file or directory";
|
|
break;
|
|
#endif
|
|
#ifdef ESRCH
|
|
case ESRCH:
|
|
error = "No such process";
|
|
break;
|
|
#endif
|
|
#ifdef EINTR
|
|
case EINTR:
|
|
error = "Interrupted system call";
|
|
break;
|
|
#endif
|
|
#ifdef EIO
|
|
case EIO:
|
|
error = "I/O error";
|
|
break;
|
|
#endif
|
|
/* go32 defines ENXIO as ENODEV */
|
|
#if defined (ENXIO) && (!defined (ENODEV) || (ENXIO != ENODEV))
|
|
case ENXIO:
|
|
error = "No such device or address";
|
|
break;
|
|
#endif
|
|
#ifdef E2BIG
|
|
case E2BIG:
|
|
error = "Arg list too long";
|
|
break;
|
|
#endif
|
|
#ifdef ENOEXEC
|
|
case ENOEXEC:
|
|
error = "Exec format error";
|
|
break;
|
|
#endif
|
|
#ifdef EALREADY
|
|
case EALREADY:
|
|
error = "Socket already connected";
|
|
break;
|
|
#endif
|
|
#ifdef EBADF
|
|
case EBADF:
|
|
error = "Bad file number";
|
|
break;
|
|
#endif
|
|
#ifdef ECHILD
|
|
case ECHILD:
|
|
error = "No children";
|
|
break;
|
|
#endif
|
|
#ifdef EDESTADDRREQ
|
|
case EDESTADDRREQ:
|
|
error = "Destination address required";
|
|
break;
|
|
#endif
|
|
#ifdef EAGAIN
|
|
case EAGAIN:
|
|
error = "No more processes";
|
|
break;
|
|
#endif
|
|
#ifdef ENOMEM
|
|
case ENOMEM:
|
|
error = "Not enough space";
|
|
break;
|
|
#endif
|
|
#ifdef EACCES
|
|
case EACCES:
|
|
error = "Permission denied";
|
|
break;
|
|
#endif
|
|
#ifdef EFAULT
|
|
case EFAULT:
|
|
error = "Bad address";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTBLK
|
|
case ENOTBLK:
|
|
error = "Block device required";
|
|
break;
|
|
#endif
|
|
#ifdef EBUSY
|
|
case EBUSY:
|
|
error = "Device or resource busy";
|
|
break;
|
|
#endif
|
|
#ifdef EEXIST
|
|
case EEXIST:
|
|
error = "File exists";
|
|
break;
|
|
#endif
|
|
#ifdef EXDEV
|
|
case EXDEV:
|
|
error = "Cross-device link";
|
|
break;
|
|
#endif
|
|
#ifdef ENODEV
|
|
case ENODEV:
|
|
error = "No such device";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTDIR
|
|
case ENOTDIR:
|
|
error = "Not a directory";
|
|
break;
|
|
#endif
|
|
#ifdef EHOSTDOWN
|
|
case EHOSTDOWN:
|
|
error = "Host is down";
|
|
break;
|
|
#endif
|
|
#ifdef EINPROGRESS
|
|
case EINPROGRESS:
|
|
error = "Connection already in progress";
|
|
break;
|
|
#endif
|
|
#ifdef EISDIR
|
|
case EISDIR:
|
|
error = "Is a directory";
|
|
break;
|
|
#endif
|
|
#ifdef EINVAL
|
|
case EINVAL:
|
|
error = "Invalid argument";
|
|
break;
|
|
#endif
|
|
#ifdef ENETDOWN
|
|
case ENETDOWN:
|
|
error = "Network interface is not configured";
|
|
break;
|
|
#endif
|
|
#ifdef ENFILE
|
|
case ENFILE:
|
|
error = "Too many open files in system";
|
|
break;
|
|
#endif
|
|
#ifdef EMFILE
|
|
case EMFILE:
|
|
error = "Too many open files";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTTY
|
|
case ENOTTY:
|
|
error = "Not a character device";
|
|
break;
|
|
#endif
|
|
#ifdef ETXTBSY
|
|
case ETXTBSY:
|
|
error = "Text file busy";
|
|
break;
|
|
#endif
|
|
#ifdef EFBIG
|
|
case EFBIG:
|
|
error = "File too large";
|
|
break;
|
|
#endif
|
|
#ifdef EHOSTUNREACH
|
|
case EHOSTUNREACH:
|
|
error = "Host is unreachable";
|
|
break;
|
|
#endif
|
|
#ifdef ENOSPC
|
|
case ENOSPC:
|
|
error = "No space left on device";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTSUP
|
|
case ENOTSUP:
|
|
error = "Not supported";
|
|
break;
|
|
#endif
|
|
#ifdef ESPIPE
|
|
case ESPIPE:
|
|
error = "Illegal seek";
|
|
break;
|
|
#endif
|
|
#ifdef EROFS
|
|
case EROFS:
|
|
error = "Read-only file system";
|
|
break;
|
|
#endif
|
|
#ifdef EMLINK
|
|
case EMLINK:
|
|
error = "Too many links";
|
|
break;
|
|
#endif
|
|
#ifdef EPIPE
|
|
case EPIPE:
|
|
error = "Broken pipe";
|
|
break;
|
|
#endif
|
|
#ifdef EDOM
|
|
case EDOM:
|
|
error = "Math argument";
|
|
break;
|
|
#endif
|
|
#ifdef ERANGE
|
|
case ERANGE:
|
|
error = "Result too large";
|
|
break;
|
|
#endif
|
|
#ifdef ENOMSG
|
|
case ENOMSG:
|
|
error = "No message of desired type";
|
|
break;
|
|
#endif
|
|
#ifdef EIDRM
|
|
case EIDRM:
|
|
error = "Identifier removed";
|
|
break;
|
|
#endif
|
|
#ifdef EDEADLK
|
|
case EDEADLK:
|
|
error = "Deadlock";
|
|
break;
|
|
#endif
|
|
#ifdef ENETUNREACH
|
|
case ENETUNREACH:
|
|
error = "Network is unreachable";
|
|
break;
|
|
#endif
|
|
#ifdef ENOLCK
|
|
case ENOLCK:
|
|
error = "No lock";
|
|
break;
|
|
#endif
|
|
#ifdef ENOSTR
|
|
case ENOSTR:
|
|
error = "Not a stream";
|
|
break;
|
|
#endif
|
|
#ifdef ETIME
|
|
case ETIME:
|
|
error = "Stream ioctl timeout";
|
|
break;
|
|
#endif
|
|
#ifdef ENOSR
|
|
case ENOSR:
|
|
error = "No stream resources";
|
|
break;
|
|
#endif
|
|
#ifdef ENONET
|
|
case ENONET:
|
|
error = "Machine is not on the network";
|
|
break;
|
|
#endif
|
|
#ifdef ENOPKG
|
|
case ENOPKG:
|
|
error = "No package";
|
|
break;
|
|
#endif
|
|
#ifdef EREMOTE
|
|
case EREMOTE:
|
|
error = "Resource is remote";
|
|
break;
|
|
#endif
|
|
#ifdef ENOLINK
|
|
case ENOLINK:
|
|
error = "Virtual circuit is gone";
|
|
break;
|
|
#endif
|
|
#ifdef EADV
|
|
case EADV:
|
|
error = "Advertise error";
|
|
break;
|
|
#endif
|
|
#ifdef ESRMNT
|
|
case ESRMNT:
|
|
error = "Srmount error";
|
|
break;
|
|
#endif
|
|
#ifdef ECOMM
|
|
case ECOMM:
|
|
error = "Communication error";
|
|
break;
|
|
#endif
|
|
#ifdef EPROTO
|
|
case EPROTO:
|
|
error = "Protocol error";
|
|
break;
|
|
#endif
|
|
#ifdef EPROTONOSUPPORT
|
|
case EPROTONOSUPPORT:
|
|
error = "Unknown protocol";
|
|
break;
|
|
#endif
|
|
#ifdef EMULTIHOP
|
|
case EMULTIHOP:
|
|
error = "Multihop attempted";
|
|
break;
|
|
#endif
|
|
#ifdef EBADMSG
|
|
case EBADMSG:
|
|
error = "Bad message";
|
|
break;
|
|
#endif
|
|
#ifdef ELIBACC
|
|
case ELIBACC:
|
|
error = "Cannot access a needed shared library";
|
|
break;
|
|
#endif
|
|
#ifdef ELIBBAD
|
|
case ELIBBAD:
|
|
error = "Accessing a corrupted shared library";
|
|
break;
|
|
#endif
|
|
#ifdef ELIBSCN
|
|
case ELIBSCN:
|
|
error = ".lib section in a.out corrupted";
|
|
break;
|
|
#endif
|
|
#ifdef ELIBMAX
|
|
case ELIBMAX:
|
|
error = "Attempting to link in more shared libraries than system limit";
|
|
break;
|
|
#endif
|
|
#ifdef ELIBEXEC
|
|
case ELIBEXEC:
|
|
error = "Cannot exec a shared library directly";
|
|
break;
|
|
#endif
|
|
#ifdef ENOSYS
|
|
case ENOSYS:
|
|
error = "Function not implemented";
|
|
break;
|
|
#endif
|
|
#ifdef ENMFILE
|
|
case ENMFILE:
|
|
error = "No more files";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTEMPTY
|
|
case ENOTEMPTY:
|
|
error = "Directory not empty";
|
|
break;
|
|
#endif
|
|
#ifdef ENAMETOOLONG
|
|
case ENAMETOOLONG:
|
|
error = "File or path name too long";
|
|
break;
|
|
#endif
|
|
#ifdef ELOOP
|
|
case ELOOP:
|
|
error = "Too many symbolic links";
|
|
break;
|
|
#endif
|
|
#ifdef ENOBUFS
|
|
case ENOBUFS:
|
|
error = "No buffer space available";
|
|
break;
|
|
#endif
|
|
#ifdef EAFNOSUPPORT
|
|
case EAFNOSUPPORT:
|
|
error = "Address family not supported by protocol family";
|
|
break;
|
|
#endif
|
|
#ifdef EPROTOTYPE
|
|
case EPROTOTYPE:
|
|
error = "Protocol wrong type for socket";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTSOCK
|
|
case ENOTSOCK:
|
|
error = "Socket operation on non-socket";
|
|
break;
|
|
#endif
|
|
#ifdef ENOPROTOOPT
|
|
case ENOPROTOOPT:
|
|
error = "Protocol not available";
|
|
break;
|
|
#endif
|
|
#ifdef ESHUTDOWN
|
|
case ESHUTDOWN:
|
|
error = "Can't send after socket shutdown";
|
|
break;
|
|
#endif
|
|
#ifdef ECONNREFUSED
|
|
case ECONNREFUSED:
|
|
error = "Connection refused";
|
|
break;
|
|
#endif
|
|
#ifdef EADDRINUSE
|
|
case EADDRINUSE:
|
|
error = "Address already in use";
|
|
break;
|
|
#endif
|
|
#ifdef ECONNABORTED
|
|
case ECONNABORTED:
|
|
error = "Software caused connection abort";
|
|
break;
|
|
#endif
|
|
#if (defined(EWOULDBLOCK) && (!defined (EAGAIN) || (EWOULDBLOCK != EAGAIN)))
|
|
case EWOULDBLOCK:
|
|
error = "Operation would block";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTCONN
|
|
case ENOTCONN:
|
|
error = "Socket is not connected";
|
|
break;
|
|
#endif
|
|
#ifdef ESOCKTNOSUPPORT
|
|
case ESOCKTNOSUPPORT:
|
|
error = "Socket type not supported";
|
|
break;
|
|
#endif
|
|
#ifdef EISCONN
|
|
case EISCONN:
|
|
error = "Socket is already connected";
|
|
break;
|
|
#endif
|
|
#ifdef ECANCELED
|
|
case ECANCELED:
|
|
error = "Operation canceled";
|
|
break;
|
|
#endif
|
|
#ifdef ENOTRECOVERABLE
|
|
case ENOTRECOVERABLE:
|
|
error = "State not recoverable";
|
|
break;
|
|
#endif
|
|
#ifdef EOWNERDEAD
|
|
case EOWNERDEAD:
|
|
error = "Previous owner died";
|
|
break;
|
|
#endif
|
|
#ifdef ESTRPIPE
|
|
case ESTRPIPE:
|
|
error = "Streams pipe error";
|
|
break;
|
|
#endif
|
|
#if defined(EOPNOTSUPP) && (!defined(ENOTSUP) || (ENOTSUP != EOPNOTSUPP))
|
|
case EOPNOTSUPP:
|
|
error = "Operation not supported on socket";
|
|
break;
|
|
#endif
|
|
#ifdef EMSGSIZE
|
|
case EMSGSIZE:
|
|
error = "Message too long";
|
|
break;
|
|
#endif
|
|
#ifdef ETIMEDOUT
|
|
case ETIMEDOUT:
|
|
error = "Connection timed out";
|
|
break;
|
|
#endif
|
|
default:
|
|
if ((error = _user_strerror (errnum)) == 0)
|
|
error = "";
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|