mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-22 00:42:06 +01:00
157 lines
2.7 KiB
C
157 lines
2.7 KiB
C
#include "config.h"
|
|
#include "f2c.h"
|
|
#include "fio.h"
|
|
#include "fmt.h"
|
|
|
|
int
|
|
y_rsk (void)
|
|
{
|
|
if (f__curunit->uend || f__curunit->url <= f__recpos
|
|
|| f__curunit->url == 1)
|
|
return 0;
|
|
do
|
|
{
|
|
getc (f__cf);
|
|
}
|
|
while (++f__recpos < f__curunit->url);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
y_getc (void)
|
|
{
|
|
int ch;
|
|
if (f__curunit->uend)
|
|
return (-1);
|
|
if ((ch = getc (f__cf)) != EOF)
|
|
{
|
|
f__recpos++;
|
|
if (f__curunit->url >= f__recpos || f__curunit->url == 1)
|
|
return (ch);
|
|
else
|
|
return (' ');
|
|
}
|
|
if (feof (f__cf))
|
|
{
|
|
f__curunit->uend = 1;
|
|
errno = 0;
|
|
return (-1);
|
|
}
|
|
err (f__elist->cierr, errno, "readingd");
|
|
}
|
|
|
|
static int
|
|
y_rev (void)
|
|
{
|
|
if (f__recpos < f__hiwater)
|
|
f__recpos = f__hiwater;
|
|
if (f__curunit->url > 1)
|
|
while (f__recpos < f__curunit->url)
|
|
(*f__putn) (' ');
|
|
if (f__recpos)
|
|
f__putbuf (0);
|
|
f__recpos = 0;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
y_err (void)
|
|
{
|
|
err (f__elist->cierr, 110, "dfe");
|
|
}
|
|
|
|
static int
|
|
y_newrec (void)
|
|
{
|
|
y_rev ();
|
|
f__hiwater = f__cursor = 0;
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
c_dfe (cilist * a)
|
|
{
|
|
f__sequential = 0;
|
|
f__formatted = f__external = 1;
|
|
f__elist = a;
|
|
f__cursor = f__scale = f__recpos = 0;
|
|
f__curunit = &f__units[a->ciunit];
|
|
if (a->ciunit > MXUNIT || a->ciunit < 0)
|
|
err (a->cierr, 101, "startchk");
|
|
if (f__curunit->ufd == NULL && fk_open (DIR, FMT, a->ciunit))
|
|
err (a->cierr, 104, "dfe");
|
|
f__cf = f__curunit->ufd;
|
|
if (!f__curunit->ufmt)
|
|
err (a->cierr, 102, "dfe");
|
|
if (!f__curunit->useek)
|
|
err (a->cierr, 104, "dfe");
|
|
f__fmtbuf = a->cifmt;
|
|
if (a->cirec <= 0)
|
|
err (a->cierr, 130, "dfe");
|
|
FSEEK (f__cf, (off_t) f__curunit->url * (a->cirec - 1), SEEK_SET);
|
|
f__curunit->uend = 0;
|
|
return (0);
|
|
}
|
|
|
|
integer
|
|
s_rdfe (cilist * a)
|
|
{
|
|
int n;
|
|
if (f__init != 1)
|
|
f_init ();
|
|
f__init = 3;
|
|
f__reading = 1;
|
|
if ((n = c_dfe (a)))
|
|
return (n);
|
|
if (f__curunit->uwrt && f__nowreading (f__curunit))
|
|
err (a->cierr, errno, "read start");
|
|
f__getn = y_getc;
|
|
f__doed = rd_ed;
|
|
f__doned = rd_ned;
|
|
f__dorevert = f__donewrec = y_err;
|
|
f__doend = y_rsk;
|
|
if (pars_f (f__fmtbuf) < 0)
|
|
err (a->cierr, 100, "read start");
|
|
fmt_bg ();
|
|
return (0);
|
|
}
|
|
|
|
integer
|
|
s_wdfe (cilist * a)
|
|
{
|
|
int n;
|
|
if (f__init != 1)
|
|
f_init ();
|
|
f__init = 3;
|
|
f__reading = 0;
|
|
if ((n = c_dfe (a)))
|
|
return (n);
|
|
if (f__curunit->uwrt != 1 && f__nowwriting (f__curunit))
|
|
err (a->cierr, errno, "startwrt");
|
|
f__putn = x_putc;
|
|
f__doed = w_ed;
|
|
f__doned = w_ned;
|
|
f__dorevert = y_err;
|
|
f__donewrec = y_newrec;
|
|
f__doend = y_rev;
|
|
if (pars_f (f__fmtbuf) < 0)
|
|
err (a->cierr, 100, "startwrt");
|
|
fmt_bg ();
|
|
return (0);
|
|
}
|
|
|
|
integer
|
|
e_rdfe (void)
|
|
{
|
|
f__init = 1;
|
|
en_fio ();
|
|
return (0);
|
|
}
|
|
|
|
integer
|
|
e_wdfe (void)
|
|
{
|
|
f__init = 1;
|
|
return en_fio ();
|
|
}
|