80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#include "f2c.h"
|
|
#include "fio.h"
|
|
extern uiolen f__reclen;
|
|
long f__recloc;
|
|
|
|
#ifdef KR_headers
|
|
c_sue(a) cilist *a;
|
|
#else
|
|
c_sue(cilist *a)
|
|
#endif
|
|
{
|
|
if(a->ciunit >= MXUNIT || a->ciunit < 0)
|
|
err(a->cierr,101,"startio");
|
|
f__external=f__sequential=1;
|
|
f__formatted=0;
|
|
f__curunit = &f__units[a->ciunit];
|
|
f__elist=a;
|
|
if(f__curunit->ufd==NULL && fk_open(SEQ,UNF,a->ciunit))
|
|
err(a->cierr,114,"sue");
|
|
f__cf=f__curunit->ufd;
|
|
if(f__curunit->ufmt) err(a->cierr,103,"sue")
|
|
if(!f__curunit->useek) err(a->cierr,103,"sue")
|
|
return(0);
|
|
}
|
|
#ifdef KR_headers
|
|
integer s_rsue(a) cilist *a;
|
|
#else
|
|
integer s_rsue(cilist *a)
|
|
#endif
|
|
{
|
|
int n;
|
|
if(!f__init) f_init();
|
|
f__reading=1;
|
|
if(n=c_sue(a)) return(n);
|
|
f__recpos=0;
|
|
if(f__curunit->uwrt && f__nowreading(f__curunit))
|
|
err(a->cierr, errno, "read start");
|
|
if(fread((char *)&f__reclen,sizeof(uiolen),1,f__cf)
|
|
!= 1)
|
|
{ if(feof(f__cf))
|
|
{ f__curunit->uend = 1;
|
|
err(a->ciend, EOF, "start");
|
|
}
|
|
clearerr(f__cf);
|
|
err(a->cierr, errno, "start");
|
|
}
|
|
return(0);
|
|
}
|
|
#ifdef KR_headers
|
|
integer s_wsue(a) cilist *a;
|
|
#else
|
|
integer s_wsue(cilist *a)
|
|
#endif
|
|
{
|
|
int n;
|
|
if(!f__init) f_init();
|
|
if(n=c_sue(a)) return(n);
|
|
f__reading=0;
|
|
f__reclen=0;
|
|
if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
|
|
err(a->cierr, errno, "write start");
|
|
f__recloc=ftell(f__cf);
|
|
(void) fseek(f__cf,(long)sizeof(uiolen),SEEK_CUR);
|
|
return(0);
|
|
}
|
|
integer e_wsue(Void)
|
|
{ long loc;
|
|
(void) fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
|
|
loc=ftell(f__cf);
|
|
(void) fseek(f__cf,f__recloc,SEEK_SET);
|
|
(void) fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
|
|
(void) fseek(f__cf,loc,SEEK_SET);
|
|
return(0);
|
|
}
|
|
integer e_rsue(Void)
|
|
{
|
|
(void) fseek(f__cf,(long)(f__reclen-f__recpos+sizeof(uiolen)),SEEK_CUR);
|
|
return(0);
|
|
}
|