-d44.5
Trace writable( ) Debug command-line switch
The -d44.5
debugging switch displays the values passed to
sendmail’s internal
writable( ) routine. This
routine nearly duplicates the function of the
access(3) call[230] but does it much more safely and allows
checks to be made under the identity of the
controlling user:
writable(fname, sff_flags)
Here, the fname is the full
pathname of the file being checked. The
sff_flags are documented in
Table 15-11 earlier. Success or failure is described under
-d44.4
.
[230] † It is more restrictive for root-owned files and can allow the set-user-id semantics needed for delivery to files.
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