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tool_doswin: increase allowable length of path sanitizer

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- Use 32767-1 instead of PATH_MAX-1 (260-1) as the maximum allowable
  length of a path in Windows.

Prior to this change the path sanitizer in Windows used 32767-1 as the
maximum length only for paths that had the "\\" prefix like
"\\?\longpath". Since then we added some workarounds to open longer
paths without "\\?\" prefix by normalizing the path and adding that
prefix, and the sanitizer is called before the prefix is added.

Bug: https://github.com/curl/curl/issues/20044
Reported-by: Viktor Szakats

Closes https://github.com/curl/curl/pull/20046
This commit is contained in:
Jay Satiro 2025-12-20 04:08:09 -05:00
parent 52ac8104e1
commit 1068d048ec
2 changed files with 40 additions and 32 deletions
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3
tests/tunit/tool1604.c
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@ -178,9 +178,6 @@ static CURLcode test_tool1604(const char *arg)
{ "COM56", 0,
"COM56", SANITIZE_ERR_OK
},
/* At the moment we expect a maximum path length of 259. I assume MS-DOS
has variable max path lengths depending on compiler that are shorter
so currently these "good" truncate tests will not run on MS-DOS */
{ "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"
"CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC"