tree 147d782f1ac7adc82f7da60cc4418270f1268f91
parent 8d67007a4dedef77dd0cf757bcc0e6fbee267ced
author Ron Yorston <rmy@pobox.com> 1650524535 +0100
committer Denys Vlasenko <vda.linux@googlemail.com> 1656256622 +0200

libbb: restore special handling of nomsg errors

The functions bb_perror_nomsg() and bb_perror_nomsg_and_die() are
used to print error messages where no specific information is
available.  For example:

   $ busybox mktemp -p /
   mktemp: (null): Permission denied

mktemp(3) doesn't tell us the name of the file it tried to create.

However, printing '(null)' is a regression introduced by commit
6937487be (libbb: reduce the overhead of single parameter bb_error_msg()
calls).  Restore the previous behaviour by reverting the changes to
the two functions mentioned:

   $ busybox mktemp -p /
   mktemp: Permission denied

function                                             old     new   delta
bb_perror_nomsg_and_die                                7      14      +7
bb_perror_nomsg                                        7      14      +7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 14/0)               Total: 14 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>