🚀 go-pugleaf

Hi,

    I have to implement a module for file locking under msdos. Firstly
the environment is dos 5.0 programming in "C" and compiling with 
Borland "C". 

    The objective is as follows-:

    If a user or a process is using a file no other process or user 
should be allowed access to a file. There are two cases I want to consider
the first one is in the case of networking if a process has placed
this lock no other process or user should be allowed access to this file
a message like "file currently locked by another user" should be
printed. However if the process that has placed this lock executes a
DOS shell and tries to access this file the same message should appear.

If the machine is not on the network then if the user has
placed a lock on a file and then executes a dos shell and tries to
access this file the user should be denied access and the appropriate
message should be printed.

Any help would be greatly appreciated.

Thanks,

sabu. 
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