#ifndef ERRNO_H
#define ERRNO_H
// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
#define E2BIG 1         // Argument list too long.
#define EACCES 2        // Permission denied.
#define EADDRINUSE 3    // Address in use.
#define EADDRNOTAVAIL 4 // Address not available.
#define EAFNOSUPPORT 5  // Address family not supported.
#define EAGAIN 6        // Resource unavailable, try again.
#define EALREADY 7      // Connection already in progress.
#define EBADF 8         // Bad file descriptor.
#define EBADMSG 9       // Bad message.
#define EBUSY 10        // Device or resource busy.
#define ECANCELED 11    // Operation canceled.
#define ECHILD 12       // No child processes.
#define ECONNABORTED 13 // Connection aborted.
#define ECONNREFUSED 14 // Connection refused.
#define ECONNRESET 15   // Connection reset.
#define EDEADLK 16      // Resource deadlock would occur.
#define EDESTADDRREQ 17 // Destination address required.
#define EDOM 18         // Mathematics argument out of domain of function.
#define EDQUOT 19       // Reserved.
#define EEXIST 20       // File exists.
#define EFAULT 21       // Bad address.
#define EFBIG 22        // File too large.
#define EHOSTUNREACH 23 // Host is unreachable.
#define EIDRM 24        // Identifier removed.
#define EILSEQ 25       // Illegal byte sequence.
#define EINPROGRESS 26  // Operation in progress.
#define EINTR 27        // Interrupted function.
#define EINVAL 28       // Invalid argument.
#define EIO 29          // I/O error.
#define EISCONN 30      // Socket is connected.
#define EISDIR 31       // Is a directory.
#define ELOOP 32        // Too many levels of symbolic links.
#define EMFILE 33       // File descriptor value too large.
#define EMLINK 34       // Too many links.
#define EMSGSIZE 35     // Message too large.
#define EMULTIHOP 36    // Reserved.
#define ENAMETOOLONG 37 // Filename too long.
#define ENETDOWN 38     // Network is down.
#define ENETRESET 39    // Connection aborted by network.
#define ENETUNREACH 40  // Network unreachable.
#define ENFILE 41       // Too many files open in system.
#define ENOBUFS 42      // No buffer space available.
#define ENODATA 43     // No message is available on the STREAM head read queue.
#define ENODEV 44      // No such device.
#define ENOENT 45      // No such file or directory.
#define ENOEXEC 46     // Executable file format error.
#define ENOLCK 47      // No locks available.
#define ENOLINK 48     // Reserved.
#define ENOMEM 49      // Not enough space.
#define ENOMSG 50      // No message of the desired type.
#define ENOPROTOOPT 51 // Protocol not available.
#define ENOSPC 52      // No space left on device.
#define ENOSR 53       // No STREAM resources.
#define ENOSTR 54      // Not a STREAM.
#define ENOSYS 55      // Functionality not supported.
#define ENOTCONN 56    // The socket is not connected.
#define ENOTDIR 57     // Not a directory or a symbolic link to a directory.
#define ENOTEMPTY 58   // Directory not empty.
#define ENOTRECOVERABLE 59 // State not recoverable.
#define ENOTSOCK 60        // Not a socket.
#define ENOTSUP 61         // Not supported (may be the same value as.
#define ENOTTY 62          // Inappropriate I/O control operation.
#define ENXIO 63           // No such device or address.
#define EOPNOTSUPP ENOTSUP // Operation not supported on socket.
#define EOVERFLOW 65       // Value too large to be stored in data type.
#define EOWNERDEAD 66      // Previous owner died.
#define EPERM 67           // Operation not permitted.
#define EPIPE 68           // Broken pipe.
#define EPROTO 69          // Protocol error.
#define EPROTONOSUPPORT 70 // Protocol not supported.
#define EPROTOTYPE 71      // Protocol wrong type for socket.
#define ERANGE 72          // Result too large.
#define EROFS 73           // Read-only file system.
#define ESPIPE 74          // Invalid seek.
#define ESRCH 75           // No such process.
#define ESTALE 76          // Reserved.
#define ETIME 77           // Stream ioctl() timeout.
#define ETIMEDOUT 78       // Connection timed out.
#define ETXTBSY 79         // Text file busy.
#define EWOULDBLOCK EAGAIN // Operation would block.
#define EXDEV 81           // Cross-device link.
#endif