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C/C++ Source or Header  |  1995-01-28  |  3KB  |  107 lines
  1. #include "f2c.h"
  2. #include "fio.h"
  3. #ifdef KR_headers
  4. integer f_inqu(a) inlist *a;
  5. #else
  6. #ifdef MSDOS
  7. #undef abs
  8. #undef min
  9. #undef max
  10. #include "string.h"
  11. #include "io.h"
  12. #endif
  13. integer f_inqu(inlist *a)
  14. #endif
  15. {    flag byfile;
  16.     int i, n;
  17.     unit *p;
  18.     char buf[256];
  19.     long x;
  20.     if(a->infile!=NULL)
  21.     {    byfile=1;
  22.         g_char(a->infile,a->infilen,buf);
  23. #ifdef NON_UNIX_STDIO
  24.         x = access(buf,0) ? -1 : 0;
  25.         for(i=0,p=NULL;i<MXUNIT;i++)
  26.             if(f__units[i].ufd != NULL
  27.              && f__units[i].ufnm != NULL
  28.              && !strcmp(f__units[i].ufnm,buf)) {
  29.                 p = &f__units[i];
  30.                 break;
  31.                 }
  32. #else
  33.         x=f__inode(buf, &n);
  34.         for(i=0,p=NULL;i<MXUNIT;i++)
  35.             if(f__units[i].uinode==x
  36.             && f__units[i].ufd!=NULL
  37.             && f__units[i].udev == n) {
  38.                 p = &f__units[i];
  39.                 break;
  40.                 }
  41. #endif
  42.     }
  43.     else
  44.     {
  45.         byfile=0;
  46.         if(a->inunit<MXUNIT && a->inunit>=0)
  47.         {
  48.             p= &f__units[a->inunit];
  49.         }
  50.         else
  51.         {
  52.             p=NULL;
  53.         }
  54.     }
  55.     if(a->inex!=NULL)
  56.         if(byfile && x != -1 || !byfile && p!=NULL)
  57.             *a->inex=1;
  58.         else *a->inex=0;
  59.     if(a->inopen!=NULL)
  60.         if(byfile) *a->inopen=(p!=NULL);
  61.         else *a->inopen=(p!=NULL && p->ufd!=NULL);
  62.     if(a->innum!=NULL) *a->innum= p-f__units;
  63.     if(a->innamed!=NULL)
  64.         if(byfile || p!=NULL && p->ufnm!=NULL)
  65.             *a->innamed=1;
  66.         else    *a->innamed=0;
  67.     if(a->inname!=NULL)
  68.         if(byfile)
  69.             b_char(buf,a->inname,a->innamlen);
  70.         else if(p!=NULL && p->ufnm!=NULL)
  71.             b_char(p->ufnm,a->inname,a->innamlen);
  72.     if(a->inacc!=NULL && p!=NULL && p->ufd!=NULL)
  73.         if(p->url)
  74.             b_char("DIRECT",a->inacc,a->inacclen);
  75.         else    b_char("SEQUENTIAL",a->inacc,a->inacclen);
  76.     if(a->inseq!=NULL)
  77.         if(p!=NULL && p->url)
  78.             b_char("NO",a->inseq,a->inseqlen);
  79.         else    b_char("YES",a->inseq,a->inseqlen);
  80.     if(a->indir!=NULL)
  81.         if(p==NULL || p->url)
  82.             b_char("YES",a->indir,a->indirlen);
  83.         else    b_char("NO",a->indir,a->indirlen);
  84.     if(a->infmt!=NULL)
  85.         if(p!=NULL && p->ufmt==0)
  86.             b_char("UNFORMATTED",a->infmt,a->infmtlen);
  87.         else    b_char("FORMATTED",a->infmt,a->infmtlen);
  88.     if(a->inform!=NULL)
  89.         if(p!=NULL && p->ufmt==0)
  90.         b_char("NO",a->inform,a->informlen);
  91.         else b_char("YES",a->inform,a->informlen);
  92.     if(a->inunf)
  93.         if(p!=NULL && p->ufmt==0)
  94.             b_char("YES",a->inunf,a->inunflen);
  95.         else if (p!=NULL) b_char("NO",a->inunf,a->inunflen);
  96.         else b_char("UNKNOWN",a->inunf,a->inunflen);
  97.     if(a->inrecl!=NULL && p!=NULL)
  98.         *a->inrecl=p->url;
  99.     if(a->innrec!=NULL && p!=NULL && p->url>0)
  100.         *a->innrec=ftell(p->ufd)/p->url+1;
  101.     if(a->inblank && p!=NULL && p->ufmt)
  102.         if(p->ublnk)
  103.             b_char("ZERO",a->inblank,a->inblanklen);
  104.         else    b_char("NULL",a->inblank,a->inblanklen);
  105.     return(0);
  106. }
  107.