diff --git a/src/wasi.rs b/src/wasi.rs
index 84e70619eff9ac8c781c52a245736c46456c8806..1309ff50260786a7eb8a2828200e6618c0d3e459 100644
--- a/src/wasi.rs
+++ b/src/wasi.rs
@@ -366,6 +366,85 @@ pub const AT_SYMLINK_NOFOLLOW: c_int = 0x1;
 pub const AT_SYMLINK_FOLLOW: c_int = 0x2;
 pub const AT_REMOVEDIR: c_int = 0x4;
 
+pub const E2BIG: c_int = __WASI_E2BIG as c_int;
+pub const EACCES: c_int = __WASI_EACCES as c_int;
+pub const EADDRINUSE: c_int = __WASI_EADDRINUSE as c_int;
+pub const EADDRNOTAVAIL: c_int = __WASI_EADDRNOTAVAIL as c_int;
+pub const EAFNOSUPPORT: c_int = __WASI_EAFNOSUPPORT as c_int;
+pub const EAGAIN: c_int = __WASI_EAGAIN as c_int;
+pub const EALREADY: c_int = __WASI_EALREADY as c_int;
+pub const EBADF: c_int = __WASI_EBADF as c_int;
+pub const EBADMSG: c_int = __WASI_EBADMSG as c_int;
+pub const EBUSY: c_int = __WASI_EBUSY as c_int;
+pub const ECANCELED: c_int = __WASI_ECANCELED as c_int;
+pub const ECHILD: c_int = __WASI_ECHILD as c_int;
+pub const ECONNABORTED: c_int = __WASI_ECONNABORTED as c_int;
+pub const ECONNREFUSED: c_int = __WASI_ECONNREFUSED as c_int;
+pub const ECONNRESET: c_int = __WASI_ECONNRESET as c_int;
+pub const EDEADLK: c_int = __WASI_EDEADLK as c_int;
+pub const EDESTADDRREQ: c_int = __WASI_EDESTADDRREQ as c_int;
+pub const EDOM: c_int = __WASI_EDOM as c_int;
+pub const EDQUOT: c_int = __WASI_EDQUOT as c_int;
+pub const EEXIST: c_int = __WASI_EEXIST as c_int;
+pub const EFAULT: c_int = __WASI_EFAULT as c_int;
+pub const EFBIG: c_int = __WASI_EFBIG as c_int;
+pub const EHOSTUNREACH: c_int = __WASI_EHOSTUNREACH as c_int;
+pub const EIDRM: c_int = __WASI_EIDRM as c_int;
+pub const EILSEQ: c_int = __WASI_EILSEQ as c_int;
+pub const EINPROGRESS: c_int = __WASI_EINPROGRESS as c_int;
+pub const EINTR: c_int = __WASI_EINTR as c_int;
+pub const EINVAL: c_int = __WASI_EINVAL as c_int;
+pub const EIO: c_int = __WASI_EIO as c_int;
+pub const EISCONN: c_int = __WASI_EISCONN as c_int;
+pub const EISDIR: c_int = __WASI_EISDIR as c_int;
+pub const ELOOP: c_int = __WASI_ELOOP as c_int;
+pub const EMFILE: c_int = __WASI_EMFILE as c_int;
+pub const EMLINK: c_int = __WASI_EMLINK as c_int;
+pub const EMSGSIZE: c_int = __WASI_EMSGSIZE as c_int;
+pub const EMULTIHOP: c_int = __WASI_EMULTIHOP as c_int;
+pub const ENAMETOOLONG: c_int = __WASI_ENAMETOOLONG as c_int;
+pub const ENETDOWN: c_int = __WASI_ENETDOWN as c_int;
+pub const ENETRESET: c_int = __WASI_ENETRESET as c_int;
+pub const ENETUNREACH: c_int = __WASI_ENETUNREACH as c_int;
+pub const ENFILE: c_int = __WASI_ENFILE as c_int;
+pub const ENOBUFS: c_int = __WASI_ENOBUFS as c_int;
+pub const ENODEV: c_int = __WASI_ENODEV as c_int;
+pub const ENOENT: c_int = __WASI_ENOENT as c_int;
+pub const ENOEXEC: c_int = __WASI_ENOEXEC as c_int;
+pub const ENOLCK: c_int = __WASI_ENOLCK as c_int;
+pub const ENOLINK: c_int = __WASI_ENOLINK as c_int;
+pub const ENOMEM: c_int = __WASI_ENOMEM as c_int;
+pub const ENOMSG: c_int = __WASI_ENOMSG as c_int;
+pub const ENOPROTOOPT: c_int = __WASI_ENOPROTOOPT as c_int;
+pub const ENOSPC: c_int = __WASI_ENOSPC as c_int;
+pub const ENOSYS: c_int = __WASI_ENOSYS as c_int;
+pub const ENOTCONN: c_int = __WASI_ENOTCONN as c_int;
+pub const ENOTDIR: c_int = __WASI_ENOTDIR as c_int;
+pub const ENOTEMPTY: c_int = __WASI_ENOTEMPTY as c_int;
+pub const ENOTRECOVERABLE: c_int = __WASI_ENOTRECOVERABLE as c_int;
+pub const ENOTSOCK: c_int = __WASI_ENOTSOCK as c_int;
+pub const ENOTSUP: c_int = __WASI_ENOTSUP as c_int;
+pub const ENOTTY: c_int = __WASI_ENOTTY as c_int;
+pub const ENXIO: c_int = __WASI_ENXIO as c_int;
+pub const EOVERFLOW: c_int = __WASI_EOVERFLOW as c_int;
+pub const EOWNERDEAD: c_int = __WASI_EOWNERDEAD as c_int;
+pub const EPERM: c_int = __WASI_EPERM as c_int;
+pub const EPIPE: c_int = __WASI_EPIPE as c_int;
+pub const EPROTO: c_int = __WASI_EPROTO as c_int;
+pub const EPROTONOSUPPORT: c_int = __WASI_EPROTONOSUPPORT as c_int;
+pub const EPROTOTYPE: c_int = __WASI_EPROTOTYPE as c_int;
+pub const ERANGE: c_int = __WASI_ERANGE as c_int;
+pub const EROFS: c_int = __WASI_EROFS as c_int;
+pub const ESPIPE: c_int = __WASI_ESPIPE as c_int;
+pub const ESRCH: c_int = __WASI_ESRCH as c_int;
+pub const ESTALE: c_int = __WASI_ESTALE as c_int;
+pub const ETIMEDOUT: c_int = __WASI_ETIMEDOUT as c_int;
+pub const ETXTBSY: c_int = __WASI_ETXTBSY as c_int;
+pub const EXDEV: c_int = __WASI_EXDEV as c_int;
+pub const ENOTCAPABLE: c_int = __WASI_ENOTCAPABLE as c_int;
+pub const EOPNOTSUPP: c_int = ENOTSUP;
+pub const EWOULDBLOCK: c_int = EAGAIN;
+
 pub const __WASI_ADVICE_NORMAL: u8 = 0;
 pub const __WASI_ADVICE_SEQUENTIAL: u8 = 1;
 pub const __WASI_ADVICE_RANDOM: u8 = 2;