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Full Discussion: COBOL issue
Operating Systems Solaris COBOL issue Post 92527 by Jayaprakash T on Monday 12th of December 2005 10:12:48 AM
Old 12-12-2005
COBOL issue

Hi,

I am working on a Mainframe to UNIX replatforming project.
we are facing problems with COBOL COMP-3 fields. We are using the Mainframe emulator software to download the data which has COMP-3 fields and using it as input to the same COBOL programs which were copied from Mainframe and did the required changes to make it compatible to UNIX environment. when we tried to read the data, the COMP-3 fields are taking extra bytes data from other fields.

For example,

FIELD1 of COMP-3 type takes 4 bytes in Mainframe
FIELD2 of COMP-3 type takes 5 bytes in Mainframe

But when used in UNIX,

FIELD1 data has shown as 2 bytes in pysical file and since it occupies 4 bytes rest of the 2 bytes it is conceiving from the rest of the record. so obviously next field FIELD2 will have lost first two bytes of its data and hence it takes 5 bytes from the rest of the record.

Please suggest how to overcome this problem.

Thanks,
JP
 

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PPPSTATS(8)						      System Manager's Manual						       PPPSTATS(8)

NAME
pppstats, slstats - print PPP/SLIP statistics SYNOPSIS
pppstats, slstats [ -a ] [ -v ] [ -r ] [ -z ] [ -c count ] [ -w secs ] [ interface ] DESCRIPTION
The pppstats or slstats utility reports PPP or SLIP related statistics at regular intervals for the specified PPP/SLIP interface. If the interface is unspecified, pppstats will default to ppp0 and slstats will default to sl0. The display is split horizontally into input and output sections containing columns of statistics describing the properties and volume of packets received and transmitted by the interface. The options are as follows: -a Display absolute values rather than deltas. With this option, all reports show statistics for the time since the link was initi- ated. Without this option, the second and subsequent reports show statistics for the time since the last report. -c count Repeat the display count times. If this option is not specified, the default repeat count is 1 if the -w option is not specified, otherwise infinity. -r Display additional statistics summarizing the compression ratio achieved by the packet compression algorithm in use. -v Display additional statistics relating to the performance of the Van Jacobson TCP header compression algorithm. -w wait Pause wait seconds between each display. If this option is not specified, the default interval is 5 seconds. -z Instead of the standard display, show statistics indicating the performance of the packet compression algorithm in use. The following fields are printed on the input side when the -z option is not used: IN The total number of bytes received by this interface. PACK The total number of packets received by this interface. VJCOMP The number of header-compressed TCP packets received by this interface. VJUNC The number of header-uncompressed TCP packets received by this interface. Not reported when the -r option is specified. VJERR The number of corrupted or bogus header-compressed TCP packets received by this interface. Not reported when the -r option is spec- ified. VJTOSS The number of VJ header-compressed TCP packets dropped on reception by this interface because of preceding errors. Only reported when the -v option is specified. NON-VJ The total number of non-TCP packets received by this interface. Only reported when the -v option is specified. RATIO The compression ratio achieved for received packets by the packet compression scheme in use, defined as the uncompressed size divided by the compressed size. Only reported when the -r option is specified. UBYTE The total number of bytes received, after decompression of compressed packets. Only reported when the -r option is specified. The following fields are printed on the output side: OUT The total number of bytes transmitted from this interface. PACK The total number of packets transmitted from this interface. VJCOMP The number of TCP packets transmitted from this interface with VJ-compressed TCP headers. VJUNC The number of TCP packets transmitted from this interface with VJ-uncompressed TCP headers. Not reported when the -r option is specified. NON-VJ The total number of non-TCP packets transmitted from this interface. Not reported when the -r option is specified. VJSRCH The number of searches for the cached header entry for a VJ header compressed TCP packet. Only reported when the -v option is spec- ified. VJMISS The number of failed searches for the cached header entry for a VJ header compressed TCP packet. Only reported when the -v option is specified. RATIO The compression ratio achieved for transmitted packets by the packet compression scheme in use, defined as the size before compres- sion divided by the compressed size. Only reported when the -r option is specified. UBYTE The total number of bytes to be transmitted, before packet compression is applied. Only reported when the -r option is specified. When the -z option is specified, pppstats instead displays the following fields, relating to the packet compression algorithm currently in use. This option is not supported by slstats and it always displays zeros. If packet compression is not in use, these fields will all display zeroes. The fields displayed on the input side are: COMPRESSED BYTE The number of bytes of compressed packets received. COMPRESSED PACK The number of compressed packets received. INCOMPRESSIBLE BYTE The number of bytes of incompressible packets (that is, those which were transmitted in uncompressed form) received. INCOMPRESSIBLE PACK The number of incompressible packets received. COMP RATIO The recent compression ratio for incoming packets, defined as the uncompressed size divided by the compressed size (including both compressible and incompressible packets). The fields displayed on the output side are: COMPRESSED BYTE The number of bytes of compressed packets transmitted. COMPRESSED PACK The number of compressed packets transmitted. INCOMPRESSIBLE BYTE The number of bytes of incompressible packets transmitted (that is, those which were transmitted in uncompressed form). INCOMPRESSIBLE PACK The number of incompressible packets transmitted. COMP RATIO The recent compression ratio for outgoing packets. SEE ALSO
pppd(8), slattach(8) 2 March 2006 PPPSTATS(8)
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