sendmail, 4th Edition

2017-07-07 02:10:07

-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 ^[6] but does it much more safely and allows checks to be made under the identity of the controlling user :

^[6] It is more restrictive for root -owned files and can allow the set-user-id semantics needed for delivery to files.

writable( fname, sff_flags )

Here, the fname is the full pathname of the file being checked. The sff_flags are documented in Table 16-12 earlier. Success or failure is described under -d44.4 .

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