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Digital Research
This commit is contained in:
Sepp J Morris
2020-11-06 18:50:37 +01:00
parent 621ed8ccaf
commit 31738079c4
8481 changed files with 1888323 additions and 0 deletions
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52
CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102a/alclib/getchd.c Normal file
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/*
Copyright 1983
Alcyon Corporation
8716 Production Ave.
San Diego, CA 92121
@(#) getchd.c - Sep 12, 1983 REGULUS 4.1
*/
/*
I/O independent mapping routine. Machine specific. Independent
of structure padding. Buffer must contain at least as many
characters as is required for structure.
*/
#include "cout.h"
#include "iobuf.h"
/*
* getchd - fills the c.out header structure from the buffer in
* the manner which will be understood on the current machine.
*/
int
getchd(fp,arptr) /* returns 0 for success, -1 for failure */
FILE *fp;
struct hdr *arptr;
{
if (lgetw(&arptr->ch_magic,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_tsize,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_dsize,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_bsize,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_ssize,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_stksize,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_entry,fp) == -1)
return(-1);
if (lgetw(&arptr->ch_rlbflg,fp) == -1)
return(-1);
if (arptr->ch_magic == EX_ABMAGIC) {
if (lgetl(&arptr->ch_dstart,fp) == -1)
return(-1);
if (lgetl(&arptr->ch_bstart,fp) == -1)
return(-1);
}
return(0);
}