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lib: handle windows reserved device names on UNC #59286

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Merged
merged 4 commits into from
Aug 9, 2025
Merged

lib: handle windows reserved device names on UNC #59286

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1dade18
lib: handle windows reserved device names on UNC
RafaelGSS Jul 30, 2025
6ada607
fixup! lib: handle windows reserved device names on UNC
RafaelGSS Jul 30, 2025
3bfea8f
fixup! fixup! lib: handle windows reserved device names on UNC
RafaelGSS Jul 31, 2025
a2ad295
fixup! fixup! fixup! lib: handle windows reserved device names on UNC
RafaelGSS Aug 7, 2025
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fixup! fixup! lib: handle windows reserved device names on UNC
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@RafaelGSS
RafaelGSS committed Jul 31, 2025
commit 3bfea8f86f75a55d55a53ddf48bd47dc2755ab20
12 changes: 8 additions & 4 deletions lib/path.js
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Original file line number Diff line number Diff line change
Expand Up @@ -398,8 +398,9 @@ const win32 = {
// We matched a device root (e.g. \\\\.\\PHYSICALDRIVE0)
device = `\\\\${firstPart}`;
rootEnd = 4;
const colonIndex = StringPrototypeIndexOf(path, ':');
// Special case: handle \\?\COM1: or similar reserved device paths
const possibleDevice = StringPrototypeSlice(path, 4, path.indexOf(':') + 1);
const possibleDevice = StringPrototypeSlice(path, 4, colonIndex + 1);
if (isWindowsReservedName(possibleDevice, possibleDevice.length - 1)) {
device = `\\\\?\\${possibleDevice}`;
rootEnd = 4 + possibleDevice.length;
Expand Down Expand Up @@ -563,12 +564,15 @@ const win32 = {
}

// Skip normalization when reserved device names are present
const parts = joined.split(/\\+/);
const splitRegexp = /\\+/;
const parts = StringPrototypeSplit(joined, splitRegexp);

const replaceRegexp = /\//g;
if (parts.some((p) => {
const colonIndex = p.indexOf(':');
const colonIndex = StringPrototypeIndexOf(p, ':');
return colonIndex !== -1 && isWindowsReservedName(p, colonIndex);
})) {
return joined.replace(/\//g, '\\');
return StringPrototypeReplace(joined, replaceRegexp, '\\');
}

return win32.normalize(joined);
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