DAP v3.0 Core Dump

Dap v3.0 -- Core Dump


The "dap" program assumes that it will be called with the correct
command-line arguments.  Specifically, if you enter a command such as "dap
--version" you will get a core-dump.  This is because the edrun() routine
assumes that it will always be passed a filename argument that does not
begin with "-".  This is not a good assumption!

This can be corrected by adding a check for number of passed arguments in
two places in the edrun() routine:
-----------------------------------------------------------------------
The first for() loop in dap.c (line 136) should be changed from this

    for (argstart = 1; argv[argstart][0] == '-'; argstart++)
      ;

to this

    for (argstart = 1; argstart < argc && argv[argstart][0] == '-';
argstart++)
      ;
-----------------------------------------------------------------------
Secondly, the value of argstart should be compared against argc following
that for() loop with new code added similar to the following (starting at
about line 138)

    if (argstart >= argc)
     {
       fputs("dap: no files to process\n", stderr);
       exit(1);
     }
-----------------------------------------------------------------------


Marty Morrison
[email protected]
(479) 277-3428




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