/*

 * Copyright (C) 2014 Samsung Electronics

 * Przemyslaw Marczak <p.marczak@samsung.com>

 *

 * SDPX-License-Identifier: GPL-2.0+

 */

#include <errno.h>

#include <linux/kernel.h>

#define ERRNO_MSG(errno, msg) msg

#define SAME_AS(x)    (const char *)&errno_message[x]

static const char * const errno_message[] = {

  ERRNO_MSG(0, "Success"),

  ERRNO_MSG(EPERM, "Operation not permitted"),

  ERRNO_MSG(ENOENT, "No such file or directory"),

  ERRNO_MSG(ESRCH, "No such process"),

  ERRNO_MSG(EINTR, "Interrupted system call"),

  ERRNO_MSG(EIO, "I/O error"),

  ERRNO_MSG(ENXIO, "No such device or address"),

  ERRNO_MSG(E2BIG, "Argument list too long"),

  ERRNO_MSG(ENOEXEC, "Exec format error"),

  ERRNO_MSG(EBADF, "Bad file number"),

  ERRNO_MSG(ECHILD, "No child processes"),

  ERRNO_MSG(EAGAIN, "Try again"),

  ERRNO_MSG(ENOMEM, "Out of memory"),

  ERRNO_MSG(EACCES, "Permission denied"),

  ERRNO_MSG(EFAULT, "Bad address"),

  ERRNO_MSG(ENOTBLK, "Block device required"),

  ERRNO_MSG(EBUSY, "Device or resource busy"),

  ERRNO_MSG(EEXIST, "File exists"),

  ERRNO_MSG(EXDEV, "Cross-device link"),

  ERRNO_MSG(ENODEV, "No such device"),

  ERRNO_MSG(ENOTDIR, "Not a directory"),

  ERRNO_MSG(EISDIR, "Is a directory"),

  ERRNO_MSG(EINVAL, "Invalid argument"),

  ERRNO_MSG(ENFILE, "File table overflow"),

  ERRNO_MSG(EMFILE, "Too many open files"),

  ERRNO_MSG(ENOTTY, "Not a typewriter"),

  ERRNO_MSG(ETXTBSY, "Text file busy"),

  ERRNO_MSG(EFBIG, "File too large"),

  ERRNO_MSG(ENOSPC, "No space left on device"),

  ERRNO_MSG(ESPIPE, "Illegal seek"),

  ERRNO_MSG(EROFS, "Read-only file system"),

  ERRNO_MSG(EMLINK, "Too many links"),

  ERRNO_MSG(EPIPE, "Broken pipe"),

  ERRNO_MSG(EDOM, "Math argument out of domain of func"),

  ERRNO_MSG(ERANGE, "Math result not representable"),

  ERRNO_MSG(EDEADLK, "Resource deadlock would occur"),

  ERRNO_MSG(ENAMETOOLONG, "File name too long"),

  ERRNO_MSG(ENOLCK, "No record locks available"),

  ERRNO_MSG(ENOSYS, "Function not implemented"),

  ERRNO_MSG(ENOTEMPTY, "Directory not empty"),

  ERRNO_MSG(ELOOP, "Too many symbolic links encountered"),

  ERRNO_MSG(EWOULDBLOCK, SAME_AS(EAGAIN)),

  ERRNO_MSG(ENOMSG, "No message of desired type"),

  ERRNO_MSG(EIDRM, "Identifier removed"),

  ERRNO_MSG(ECHRNG, "Channel number out of range"),

  ERRNO_MSG(EL2NSYNC, "Level 2 not synchronized"),

  ERRNO_MSG(EL3HLT, "Level 3 halted"),

  ERRNO_MSG(EL3RST, "Level 3 reset"),

  ERRNO_MSG(ELNRNG, "Link number out of range"),

  ERRNO_MSG(EUNATCH, "Protocol driver not attached"),

  ERRNO_MSG(ENOCSI, "No CSI structure available"),

  ERRNO_MSG(EL2HLT, "Level 2 halted"),

  ERRNO_MSG(EBADE, "Invalid exchange"),

  ERRNO_MSG(EBADR, "Invalid request descriptor"),

  ERRNO_MSG(EXFULL, "Exchange full"),

  ERRNO_MSG(ENOANO, "No anode"),

  ERRNO_MSG(EBADRQC, "Invalid request code"),

  ERRNO_MSG(EBADSLT, "Invalid slot"),

  ERRNO_MSG(EDEADLOCK, SAME_AS(EDEADLK)),

  ERRNO_MSG(EBFONT, "Bad font file format"),

  ERRNO_MSG(ENOSTR, "Device not a stream"),

  ERRNO_MSG(ENODATA, "No data available"),

  ERRNO_MSG(ETIME, "Timer expired"),

  ERRNO_MSG(ENOSR, "Out of streams resources"),

  ERRNO_MSG(ENONET, "Machine is not on the network"),

  ERRNO_MSG(ENOPKG, "Package not installed"),

  ERRNO_MSG(EREMOTE, "Object is remote"),

  ERRNO_MSG(ENOLINK, "Link has been severed"),

  ERRNO_MSG(EADV, "Advertise error"),

  ERRNO_MSG(ESRMNT, "Srmount error"),

  ERRNO_MSG(ECOMM, "Communication error on send"),

  ERRNO_MSG(EPROTO, "Protocol error"),

  ERRNO_MSG(EMULTIHOP, "Multihop attempted"),

  ERRNO_MSG(EDOTDOT, "RFS specific error"),

  ERRNO_MSG(EBADMSG, "Not a data message"),

  ERRNO_MSG(EOVERFLOW, "Value too large for defined data type"),

  ERRNO_MSG(ENOTUNIQ, "Name not unique on network"),

  ERRNO_MSG(EBADFD, "File descriptor in bad state"),

  ERRNO_MSG(EREMCHG, "Remote address changed"),

  ERRNO_MSG(ELIBACC, "Can not access a needed shared library"),

  ERRNO_MSG(ELIBBAD, "Accessing a corrupted shared library"),

  ERRNO_MSG(ELIBSCN, ".lib section in a.out corrupted"),

  ERRNO_MSG(ELIBMAX, "Attempting to link in too many shared libraries"),

  ERRNO_MSG(ELIBEXEC, "Cannot exec a shared library directly"),

  ERRNO_MSG(EILSEQ, "Illegal byte sequence"),

  ERRNO_MSG(ERESTART, "Interrupted system call should be restarted"),

  ERRNO_MSG(ESTRPIPE, "Streams pipe error"),

  ERRNO_MSG(EUSERS, "Too many users"),

  ERRNO_MSG(ENOTSOCK, "Socket operation on non-socket"),

  ERRNO_MSG(EDESTADDRREQ, "Destination address required"),

  ERRNO_MSG(EMSGSIZE, "Message too long"),

  ERRNO_MSG(EPROTOTYPE, "Protocol wrong type for socket"),

  ERRNO_MSG(ENOPROTOOPT, "Protocol not available"),

  ERRNO_MSG(EPROTONOSUPPORT, "Protocol not supported"),

  ERRNO_MSG(ESOCKTNOSUPPORT, "Socket type not supported"),

  ERRNO_MSG(EOPNOTSUPP, "Operation not supported on transport endpoint"),

  ERRNO_MSG(EPFNOSUPPORT, "Protocol family not supported"),

  ERRNO_MSG(AFNOSUPPORT, "Address family not supported by protocol"),

  ERRNO_MSG(EADDRINUSE, "Address already in use"),

  ERRNO_MSG(EADDRNOTAVAIL, "Cannot assign requested address"),

  ERRNO_MSG(ENETDOWN, "Network is down"),

  ERRNO_MSG(ENETUNREACH, "Network is unreachable"),

  ERRNO_MSG(ENETRESET, "Network dropped connection because of reset"),

  ERRNO_MSG(ECONNABORTED, "Software caused connection abort"),

  ERRNO_MSG(ECONNRESET, "Connection reset by peer"),

  ERRNO_MSG(ENOBUFS, "No buffer space available"),

  ERRNO_MSG(EISCONN, "Transport endpoint is already connected"),

  ERRNO_MSG(ENOTCONN, "Transport endpoint is not connected"),

  ERRNO_MSG(ESHUTDOWN, "Cannot send after transport endpoint shutdown"),

  ERRNO_MSG(ETOOMANYREFS, "Too many references: cannot splice"),

  ERRNO_MSG(ETIMEDOUT, "Connection timed out"),

  ERRNO_MSG(ECONNREFUSED, "Connection refused"),

  ERRNO_MSG(EHOSTDOWN, "Host is down"),

  ERRNO_MSG(EHOSTUNREACH, "No route to host"),

  ERRNO_MSG(EALREADY, "Operation already in progress"),

  ERRNO_MSG(EINPROGRESS, "Operation now in progress"),

  ERRNO_MSG(ESTALE, "Stale NFS file handle"),

  ERRNO_MSG(EUCLEAN, "Structure needs cleaning"),

  ERRNO_MSG(ENOTNAM, "Not a XENIX named type file"),

  ERRNO_MSG(ENAVAIL, "No XENIX semaphores available"),

  ERRNO_MSG(EISNAM, "Is a named type file"),

  ERRNO_MSG(EREMOTEIO, "Remote I/O error"),

  ERRNO_MSG(EDQUOT, "Quota exceeded"),

  ERRNO_MSG(ENOMEDIUM, "No medium found"),

  ERRNO_MSG(EMEDIUMTYPE, "Wrong medium type"),

  /* Message for unsupported error numbers */

  ERRNO_MSG(0, "Unknown error"),

};

const char *errno_str(int errno)

{

  if (errno >= 0)

    return errno_message[0];

  errno = -errno;

  if (errno >= ARRAY_SIZE(errno_message))

    errno = ARRAY_SIZE(errno_message) - 1;

  return errno_message[errno];

}