// Error numbers, matching the Linux x86_64 ABI values so that musl-linked
// programs interpret syscall failures correctly. Kernel code returns these
// negated (e.g. `return -ENOSYS;`), exactly like Linux does internally.
#ifndef SCHOS_ERRNO_H
#define SCHOS_ERRNO_H

#define EPERM        1   // Operation not permitted
#define ENOENT       2   // No such file or directory
#define ESRCH        3   // No such process
#define EINTR        4   // Interrupted system call
#define EIO          5   // I/O error
#define ENXIO        6   // No such device or address
#define E2BIG        7   // Argument list too long
#define ENOEXEC      8   // Exec format error
#define EBADF        9   // Bad file descriptor
#define ECHILD      10   // No child processes
#define EAGAIN      11   // Try again
#define ENOMEM      12   // Out of memory
#define EACCES      13   // Permission denied
#define EFAULT      14   // Bad address
#define EBUSY       16   // Device or resource busy
#define EEXIST      17   // File exists
#define EXDEV       18   // Cross-device link
#define ENODEV      19   // No such device
#define ENOTDIR     20   // Not a directory
#define EISDIR      21   // Is a directory
#define EINVAL      22   // Invalid argument
#define ENFILE      23   // File table overflow
#define EMFILE      24   // Too many open files
#define ENOTTY      25   // Not a typewriter
#define EFBIG       27   // File too large
#define ENOSPC      28   // No space left on device
#define ESPIPE      29   // Illegal seek
#define EROFS       30   // Read-only file system
#define EMLINK      31   // Too many links
#define EPIPE       32   // Broken pipe
#define ERANGE      34   // Math result not representable
#define ENAMETOOLONG 36  // File name too long
#define ENOSYS      38   // Function not implemented
#define ENOTEMPTY   39   // Directory not empty
#define ELOOP       40   // Too many symbolic links encountered

// Sockets. Same Linux x86_64 values, so strerror() in a musl-linked program
// prints the message the programmer expected rather than a neighbouring one.
#define ENOTSOCK        88   // Socket operation on non-socket
#define EDESTADDRREQ    89   // Destination address required
#define EMSGSIZE        90   // Message too long
#define EPROTOTYPE      91   // Protocol wrong type for socket
#define ENOPROTOOPT     92   // Protocol not available
#define EPROTONOSUPPORT 93   // Protocol not supported
#define EOPNOTSUPP      95   // Operation not supported on transport endpoint
#define EAFNOSUPPORT    97   // Address family not supported by protocol
#define EADDRINUSE      98   // Address already in use
#define EADDRNOTAVAIL   99   // Cannot assign requested address
#define ECONNRESET     104   // Connection reset by peer
#define EISCONN        106   // Transport endpoint is already connected
#define ENOTCONN       107   // Transport endpoint is not connected
#define ECONNREFUSED   111   // Connection refused

#endif // SCHOS_ERRNO_H