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tool_filetime: cap crazy filetimes instead of erroring

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Also cap the minimum allowed timestamp now.

Closes #19147
This commit is contained in:
Daniel Stenberg 2025-10-19 17:00:06 +02:00
parent 8504c41e2c
commit c21655e7ff
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1 changed files with 10 additions and 6 deletions
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16
src/tool_filetime.c
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@ -96,13 +96,17 @@ void setfiletime(curl_off_t filetime, const char *filename)
HANDLE hfile;
TCHAR *tchar_filename = curlx_convert_UTF8_to_tchar(filename);
/* 910670515199 is the maximum Unix filetime that can be used as a
Windows FILETIME without overflow: 30827-12-31T23:59:59. */
/* 910670515199 is the maximum Unix filetime that can be used as a Windows
FILETIME without overflow: 30827-12-31T23:59:59. */
if(filetime > 910670515199) {
warnf("Failed to set filetime %" CURL_FORMAT_CURL_OFF_T
" on outfile: overflow", filetime);
curlx_unicodefree(tchar_filename);
return;
filetime = 910670515199;
warnf("Capping set filetime to max to avoid overflow");
}
else if(filetime < -6857222400) {
/* dates before 14 september 1752 (pre-Gregorian calendar) are not
accurate */
filetime = -6857222400;
warnf("Capping set filetime to minimum to avoid overflow");
}
hfile = CreateFile(tchar_filename, FILE_WRITE_ATTRIBUTES,