source: vendor/gcc/3.2.2/libf2c/libI77/inquire.c

Last change on this file was 2, checked in by bird, 22 years ago

Initial revision

  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 2.6 KB
Line 
1#include "config.h"
2#include "f2c.h"
3#include "fio.h"
4#include <string.h>
5#ifdef KR_headers
6integer f_inqu(a) inlist *a;
7#else
8#if defined (MSDOS) && !defined (GO32)
9#undef abs
10#undef min
11#undef max
12#include "io.h"
13#endif
14integer f_inqu(inlist *a)
15#endif
16{ flag byfile;
17 int i, n;
18 unit *p;
19 char buf[256];
20 long x;
21 if (f__init & 2)
22 f__fatal (131, "I/O recursion");
23 if(a->infile!=NULL)
24 { byfile=1;
25 g_char(a->infile,a->infilen,buf);
26#ifdef NON_UNIX_STDIO
27 x = access(buf,0) ? -1 : 0;
28 for(i=0,p=NULL;i<MXUNIT;i++)
29 if(f__units[i].ufd != NULL
30 && f__units[i].ufnm != NULL
31 && !strcmp(f__units[i].ufnm,buf)) {
32 p = &f__units[i];
33 break;
34 }
35#else
36 x=f__inode(buf, &n);
37 for(i=0,p=NULL;i<MXUNIT;i++)
38 if(f__units[i].uinode==x
39 && f__units[i].ufd!=NULL
40 && f__units[i].udev == n) {
41 p = &f__units[i];
42 break;
43 }
44#endif
45 }
46 else
47 {
48 byfile=0;
49 if(a->inunit<MXUNIT && a->inunit>=0)
50 {
51 p= &f__units[a->inunit];
52 }
53 else
54 {
55 p=NULL;
56 }
57 }
58 if(a->inex!=NULL)
59 if(byfile && x != -1 || !byfile && p!=NULL)
60 *a->inex=1;
61 else *a->inex=0;
62 if(a->inopen!=NULL)
63 if(byfile) *a->inopen=(p!=NULL);
64 else *a->inopen=(p!=NULL && p->ufd!=NULL);
65 if(a->innum!=NULL) *a->innum= p-f__units;
66 if(a->innamed!=NULL)
67 if(byfile || p!=NULL && p->ufnm!=NULL)
68 *a->innamed=1;
69 else *a->innamed=0;
70 if(a->inname!=NULL)
71 if(byfile)
72 b_char(buf,a->inname,a->innamlen);
73 else if(p!=NULL && p->ufnm!=NULL)
74 b_char(p->ufnm,a->inname,a->innamlen);
75 if(a->inacc!=NULL && p!=NULL && p->ufd!=NULL)
76 if(p->url)
77 b_char("DIRECT",a->inacc,a->inacclen);
78 else b_char("SEQUENTIAL",a->inacc,a->inacclen);
79 if(a->inseq!=NULL)
80 if(p!=NULL && p->url)
81 b_char("NO",a->inseq,a->inseqlen);
82 else b_char("YES",a->inseq,a->inseqlen);
83 if(a->indir!=NULL)
84 if(p==NULL || p->url)
85 b_char("YES",a->indir,a->indirlen);
86 else b_char("NO",a->indir,a->indirlen);
87 if(a->infmt!=NULL)
88 if(p!=NULL && p->ufmt==0)
89 b_char("UNFORMATTED",a->infmt,a->infmtlen);
90 else b_char("FORMATTED",a->infmt,a->infmtlen);
91 if(a->inform!=NULL)
92 if(p!=NULL && p->ufmt==0)
93 b_char("NO",a->inform,a->informlen);
94 else b_char("YES",a->inform,a->informlen);
95 if(a->inunf)
96 if(p!=NULL && p->ufmt==0)
97 b_char("YES",a->inunf,a->inunflen);
98 else if (p!=NULL) b_char("NO",a->inunf,a->inunflen);
99 else b_char("UNKNOWN",a->inunf,a->inunflen);
100 if(a->inrecl!=NULL && p!=NULL)
101 *a->inrecl=p->url;
102 if(a->innrec!=NULL && p!=NULL && p->url>0)
103 *a->innrec=FTELL(p->ufd)/p->url+1;
104 if(a->inblank && p!=NULL && p->ufmt)
105 if(p->ublnk)
106 b_char("ZERO",a->inblank,a->inblanklen);
107 else b_char("NULL",a->inblank,a->inblanklen);
108 return(0);
109}
Note: See TracBrowser for help on using the repository browser.