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=============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ =============================================================================== ---------- Forwarded message ---------- Date: Tue, 7 Dec 1999 15:46:01 -0500 From: Dan Vietor <address@hidden> To: 'Robb Kambic' <address@hidden>, 'Michael W Dross' <address@hidden> Subject: RE: LDM 5.0.8 and pqing segmentation fault. > Currently a define flag needs to be set in the LDM compile for the P > option to be available. This can be done by: > > % setenv CC "cc -DNET" > > Then build the LDM from a clean distribution or one will get old > configuration type problems. When I compile 5.0.8, the NET option seemed to be there by default. This enabled -P use. The seg fault comes from modifying a const integer. In pqing.c, around line 408: *((int *)&server_port) = atoi(optarg); /* cast away const */ This causes a core dump on Linux and I believe Intel Solaris as well. The const declaration of server_port appears to be the culprit. If you remove the const declarator in feed.h/feed.c, the code runs: extern int server_port; /* global in feed.h */ int server_port = 0; /* set in main in feed.c */ > I noticed in the man page for pqing that the P option was no longer > available. I don't know what this means, it appears the code is still > included in pqing.c but does it work? It appeared the man pages were rather old (dated 1996) and the -P option wasn't there. When you make these changes, the -P option for reading from a socket works great. ________________________________________________________ Daniel Vietor Mail: address@hidden Unisys Corp Title: Engineer/Meteorologist 221 Gale Lane Phone: 610-444-2407 Kennett Square PA 19348 Fax: 610-444-2420