integer f_inqu(inlist *a)
#endif
{ flag byfile;
int i, n;
unit *p;
char buf[256];
long x;
if(a->infile!=NULL)
{ byfile=1;
g_char(a->infile,a->infilen,buf);
#ifdef NON_UNIX_STDIO
x = access(buf,0) ? -1 : 0;
for(i=0,p=NULL;i<MXUNIT;i++)
if(f__units[i].ufd != NULL
&& f__units[i].ufnm != NULL
&& !strcmp(f__units[i].ufnm,buf)) {
p = &f__units[i];
break;
}
#else
x=f__inode(buf, &n);
for(i=0,p=NULL;i<MXUNIT;i++)
if(f__units[i].uinode==x
&& f__units[i].ufd!=NULL
&& f__units[i].udev == n) {
p = &f__units[i];
break;
}
#endif
}
else
{
byfile=0;
if(a->inunit<MXUNIT && a->inunit>=0)
{
p= &f__units[a->inunit];
}
else
{
p=NULL;
}
}
if(a->inex!=NULL)
if(byfile && x != -1 || !byfile && p!=NULL)
*a->inex=1;
else *a->inex=0;
if(a->inopen!=NULL)
if(byfile) *a->inopen=(p!=NULL);
else *a->inopen=(p!=NULL && p->ufd!=NULL);
if(a->innum!=NULL) *a->innum= p-f__units;
if(a->innamed!=NULL)
if(byfile || p!=NULL && p->ufnm!=NULL)
*a->innamed=1;
else *a->innamed=0;
if(a->inname!=NULL)
if(byfile)
b_char(buf,a->inname,a->innamlen);
else if(p!=NULL && p->ufnm!=NULL)
b_char(p->ufnm,a->inname,a->innamlen);
if(a->inacc!=NULL && p!=NULL && p->ufd!=NULL)
if(p->url)
b_char("DIRECT",a->inacc,a->inacclen);
else b_char("SEQUENTIAL",a->inacc,a->inacclen);
if(a->inseq!=NULL)
if(p!=NULL && p->url)
b_char("NO",a->inseq,a->inseqlen);
else b_char("YES",a->inseq,a->inseqlen);
if(a->indir!=NULL)
if(p==NULL || p->url)
b_char("YES",a->indir,a->indirlen);
else b_char("NO",a->indir,a->indirlen);
if(a->infmt!=NULL)
if(p!=NULL && p->ufmt==0)
b_char("UNFORMATTED",a->infmt,a->infmtlen);
else b_char("FORMATTED",a->infmt,a->infmtlen);
if(a->inform!=NULL)
if(p!=NULL && p->ufmt==0)
b_char("NO",a->inform,a->informlen);
else b_char("YES",a->inform,a->informlen);
if(a->inunf)
if(p!=NULL && p->ufmt==0)
b_char("YES",a->inunf,a->inunflen);
else if (p!=NULL) b_char("NO",a->inunf,a->inunflen);
else b_char("UNKNOWN",a->inunf,a->inunflen);
if(a->inrecl!=NULL && p!=NULL)
*a->inrecl=p->url;
if(a->innrec!=NULL && p!=NULL && p->url>0)
*a->innrec=ftell(p->ufd)/p->url+1;
if(a->inblank && p!=NULL && p->ufmt)
if(p->ublnk)
b_char("ZERO",a->inblank,a->inblanklen);
else b_char("NULL",a->inblank,a->inblanklen);
return(0);
}
integer
f_open (olist * a)
{
unit *b;
integer rv;
char buf[256], *s, *env;
cllist x;
int ufmt;
FILE *tf;
int fd, len;
#ifndef NON_UNIX_STDIO
int n;
#endif
if (f__init != 1)
f_init ();
f__external = 1;
if (a->ounit >= MXUNIT || a->ounit < 0)
err (a->oerr, 101, "open");
f__curunit = b = &f__units[a->ounit];
if (b->ufd)
{
if (a->ofnm == 0)
{
same:if (a->oblnk)
b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z';
return (0);
}
#ifdef NON_UNIX_STDIO
if (b->ufnm
&& strlen (b->ufnm) == a->ofnmlen
&& !strncmp (b->ufnm, a->ofnm, (unsigned) a->ofnmlen))
goto same;
#else
g_char (a->ofnm, a->ofnmlen, buf);
if (f__inode (buf, &n) == b->uinode && n == b->udev)
goto same;
#endif
x.cunit = a->ounit;
x.csta = 0;
x.cerr = a->oerr;
if ((rv = f_clos (&x)) != 0)
return rv;
}
b->url = (int) a->orl;
b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z');
if (a->ofm == 0)
if ((a->oacc) && (*a->oacc == 'D' || *a->oacc == 'd'))
b->ufmt = 0;
else
b->ufmt = 1;
else if (*a->ofm == 'f' || *a->ofm == 'F')
b->ufmt = 1;
else
b->ufmt = 0;
ufmt = b->ufmt;
#ifdef url_Adjust
if (b->url && !ufmt)
url_Adjust (b->url);
#endif
if (a->ofnm)
{
g_char (a->ofnm, a->ofnmlen, buf);
if (!buf[0])
opnerr (a->oerr, 107, "open");
}
else
sprintf (buf, "fort.%ld", (long) a->ounit);
b->uscrtch = 0;
b->uend = 0;
b->uwrt = 0;
b->ufd = 0;
b->urw = 3;
switch (a->osta ? *a->osta : 'u')
{
case 'o':
case 'O':
#ifdef NON_POSIX_STDIO
if (!(tf = fopen (buf, "r")))
opnerr (a->oerr, errno, "open");
fclose (tf);
#else
if (access (buf, 0))
opnerr (a->oerr, errno, "open");
#endif
break;
case 's':
case 'S':
b->uscrtch = 1;
#ifdef HAVE_MKSTEMP /* Allow use of TMPDIR preferentially. */
env = getenv ("TMPDIR");
if (!env)
env = getenv ("TEMP");
if (!env)
env = "/tmp";
len = strlen (env);
if (len > 256 - (int) sizeof ("/tmp.FXXXXXX"))
err (a->oerr, 132, "open");
strcpy (buf, env);
strcat (buf, "/tmp.FXXXXXX");
fd = mkstemp (buf);
if (fd == -1 || close (fd))
err (a->oerr, 132, "open");
#else /* ! defined (HAVE_MKSTEMP) */
#ifdef HAVE_TEMPNAM /* Allow use of TMPDIR preferentially. */
s = tempnam (0, buf);
if (strlen (s) >= sizeof (buf))
err (a->oerr, 132, "open");
(void) strcpy (buf, s);
free (s);
#else /* ! defined (HAVE_TEMPNAM) */
#ifdef HAVE_TMPNAM
tmpnam (buf);
#else
(void) strcpy (buf, "tmp.FXXXXXX");
(void) mktemp (buf);
#endif
#endif /* ! defined (HAVE_TEMPNAM) */
#endif /* ! defined (HAVE_MKSTEMP) */
goto replace;
case 'n':
case 'N':
#ifdef NON_POSIX_STDIO
if ((tf = fopen (buf, "r")) || (tf = fopen (buf, "a")))
{
fclose (tf);
opnerr (a->oerr, 128, "open");
}
#else
if (!access (buf, 0))
opnerr (a->oerr, 128, "open");
#endif
/* no break */
case 'r': /* Fortran 90 replace option */
case 'R':
replace:
if ((tf = fopen (buf, f__w_mode[0])))
fclose (tf);
}
b->ufnm = (char *) malloc ((unsigned int) (strlen (buf) + 1));
if (b->ufnm == NULL)
opnerr (a->oerr, 113, "no space");
(void) strcpy (b->ufnm, buf);
if ((s = a->oacc) && b->url)
ufmt = 0;
if (!(tf = fopen (buf, f__w_mode[ufmt | 2])))
{
if ((tf = fopen (buf, f__r_mode[ufmt])))
b->urw = 1;
else if ((tf = fopen (buf, f__w_mode[ufmt])))
{
b->uwrt = 1;
b->urw = 2;
}
else
err (a->oerr, errno, "open");
}
b->useek = f__canseek (b->ufd = tf);
#ifndef NON_UNIX_STDIO
if ((b->uinode = f__inode (buf, &b->udev)) == -1)
opnerr (a->oerr, 108, "open");
#endif
if (b->useek)
{
if (a->orl)
FSEEK (b->ufd, 0, SEEK_SET);
else if ((s = a->oacc) && (*s == 'a' || *s == 'A')
&& FSEEK (b->ufd, 0, SEEK_END))
opnerr (a->oerr, 129, "open");
}
return (0);
}
