NAME

       g2_unpack2.c - Unpack Section 2 (Local Use Section) as defined in GRIB Edition 2.

SYNOPSIS

       #include <stdio.h>
       #include <stdlib.h>
       #include 'grib2.h'

   Functions
       g2int g2_unpack2 (unsigned char *cgrib, g2int *iofst, g2int *lencsec2, unsigned char
           **csec2)
           This subroutine unpacks Section 2 (Local Use Section) as defined in GRIB Edition 2.

Detailed Description

       Unpack Section 2 (Local Use Section) as defined in GRIB Edition 2.

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition in file g2_unpack2.c.

Function Documentation

   g2int g2_unpack2 (unsigned char * cgrib, g2int * iofst, g2int * lencsec2, unsigned char **
       csec2)
       This subroutine unpacks Section 2 (Local Use Section) as defined in GRIB Edition 2.
       PROGRAM HISTORY LOG:

       • 2002-10-31 Gilbert

       • 2008-12-23 Wesley - Initialize lencsec2 Length of Local Use data

       • 2010-08-05 Vuong - If section 2 has zero length, ierr=0

       Parameters
           cgrib char array containing Section 2 of the GRIB2 message.
           iofst Bit offset for the beginning of Section 2 in cgrib. The modified version will be
           returned.
           lencsec2 Length (in octets) of Local Use data.
           csec2 Pointer to a char array containing local use data.

       Returns

           • 0 no error

           • 2 Array passed is not section 2

           • 6 memory allocation error

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition at line 34 of file g2_unpack2.c.

       References gbit().

       Referenced by g2_getfld().

Author

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