1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
#include "f2c.h"
#include "fio.h"
#ifdef KR_headers
integer f_inqu(a) inlist *a;
#else
#ifdef MSDOS
#undef abs
#undef min
#undef max
#include "string.h"
#include "io.h"
#endif
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);
}
|
