File: frd.c

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#include <stdlib.h>
#include <stdio.h>
#include "wv.h"

void wvGetFRD(FRD *item,FILE *fd)
	{
	item->frd = (S16)read_16ubit(fd);
	}

int wvGetFRD_PLCF(FRD **frd,U32 **pos,U32 *nofrd,U32 offset,U32 len,FILE *fd)
	{
	U32 i;
	if (len == 0)
		{
		*frd = NULL;
		*pos = NULL;
		*nofrd = 0;
		}
	else
        {
        *nofrd=(len-4)/6;
        *pos = (U32 *) malloc( (*nofrd+1) * sizeof(U32));
        if (*pos == NULL)
            {
            wvError(("NO MEM 1, failed to alloc %d bytes\n",(*nofrd+1) * sizeof(U32)));
            return(1);
            }

        *frd = (FRD *) malloc(*nofrd * sizeof(FRD));
        if (*frd == NULL)
            {
            wvError(("NO MEM 1, failed to alloc %d bytes\n",*nofrd * sizeof(FRD)));
			free(pos);
            return(1);
            }
        fseek(fd,offset,SEEK_SET);
        for(i=0;i<=*nofrd;i++)
            (*pos)[i]=read_32ubit(fd);
        for(i=0;i<*nofrd;i++)
            wvGetFRD(&((*frd)[i]),fd);
        }
	return(0);
	}