bpo-38222: Check specifically for a drive, not just a colon (GH-25540)

zooba · web-flow · commit e07d8098892e · 2021-04-23T00:30:37.000+01:00
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
@@ -1860,8 +1860,8 @@ attributes_from_dir(LPCWSTR pszFile, BY_HANDLE_FILE_INFORMATION *info, ULONG *re
         while (--n > 0 && (filename[n] == L'\\' || filename[n] == L'/')) {
             ((LPWSTR)filename)[n] = L'\0';
         }
-        if (!n || filename[n] == L':') {
-            // Nothing left te query
+        if (!n || (n == 1 && filename[1] == L':')) {
+            // Nothing left to query
             free((void *)filename);
             return FALSE;
         }

Original file line number	Diff line number	Diff line change
`@@ -1860,8 +1860,8 @@ attributes_from_dir(LPCWSTR pszFile, BY_HANDLE_FILE_INFORMATION info, ULONG re`
`1860`	`1860`	`while (--n > 0 && (filename[n] == L'\\' \|\| filename[n] == L'/')) {`
`1861`	`1861`	`((LPWSTR)filename)[n] = L'\0';`
`1862`	`1862`	`}`
`1863`		`- if (!n \|\| filename[n] == L':') {`
`1864`		`- // Nothing left te query`
	`1863`	`+ if (!n \|\| (n == 1 && filename[1] == L':')) {`
	`1864`	`+ // Nothing left to query`
`1865`	`1865`	`free((void *)filename);`
`1866`	`1866`	`return FALSE;`
`1867`	`1867`	`}`