fcntl() file locking under Solaris 2.4

[matt () uts EDU AU (Jas)]

to all you coders out there be aware file locking behaves differently
for NFS file systems under solaris 2.4... be warned doing a ufs file
lock on a NFS file makes fcntl() hang.. it doesnt return an error, it
hangs.
anyway here is a snippet of code that does a work around..

instead of
        fcntl(fd,F_SETLK,&info);
try this..
        struct statvfs vfsbuf;
        cmd=F_SETLK;
        if(!fstatvfs(fd,&vfsbuf)&&!strcmp("nfs",vfsbuf.f_basetype))
                cmd=F_RSETLK;
        fcntl(fd,cmd,&info);

hope this helps..

                        Matt
P.S. i have posted patches for both pine and elm to the sun-managers list
-- 
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Matthew Keenan   Systems Programmer   Information Technology Division
      University of Technology     Sydney Australia

It's nice to be in a position where people apologize because they
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but they're not sure where it is. -- Rob Pike