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Possible TTY fix? #19

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Possible TTY fix? #19

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21 changes: 11 additions & 10 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -444,6 +444,14 @@ const wrap = (f) => (...args) => {
};

const translateFileAttributes = (fd, stats) => {
if (isTTY(fd)) {
return {
filetype: WASI_FILETYPE_CHARACTER_DEVICE,
rightsBase: RIGHTS_TTY_BASE,
rightsInheriting: RIGHTS_TTY_INHERITING,
};
}

switch (true) {
case stats.isBlockDevice():
return {
Expand All @@ -452,16 +460,8 @@ const translateFileAttributes = (fd, stats) => {
rightsInheriting: RIGHTS_BLOCK_DEVICE_INHERITING,
};
case stats.isCharacterDevice(): {
const filetype = WASI_FILETYPE_CHARACTER_DEVICE;
if (fd !== undefined && isTTY(fd)) {
return {
filetype,
rightsBase: RIGHTS_TTY_BASE,
rightsInheriting: RIGHTS_TTY_INHERITING,
};
}
return {
filetype,
filetype: WASI_FILETYPE_CHARACTER_DEVICE,
rightsBase: RIGHTS_CHARACTER_DEVICE_BASE,
rightsInheriting: RIGHTS_CHARACTER_DEVICE_INHERITING,
};
Expand Down Expand Up @@ -510,8 +510,9 @@ const stat = (wasi, fd) => {
if (!entry) {
throw WASI_EBADF;
}

if (entry.filetype === undefined) {
const stats = fs.fstatSync(entry.real);
const stats = isTTY(fd) ? void 0 : fs.fstatSync(entry.real);
const {
filetype, rightsBase, rightsInheriting,
} = translateFileAttributes(fd, stats);
Expand Down