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C/C++ Source or Header  |  1992-05-07  |  2KB  |  96 lines
  1. #include "f2c.h"
  2. #include "fio.h"
  3. integer f_inqu(a) inlist *a;
  4. {    flag byfile;
  5.     int i, n;
  6.     unit *p;
  7.     char buf[256];
  8.     long x;
  9.     if(a->infile!=NULL)
  10.     {    byfile=1;
  11.         g_char(a->infile,a->infilen,buf);
  12. #ifdef MSDOS
  13.         x = access(buf,0) ? -1 : 0;
  14.         for(i=0,p=NULL;i<MXUNIT;i++)
  15.             if(units[i].ufd != NULL
  16.              && units[i].ufnm != NULL
  17.              && !strcmp(units[i].ufnm,buf)) {
  18.                 p = &units[i];
  19.                 break;
  20.                 }
  21. #else
  22.         x=inode(buf, &n);
  23.         for(i=0,p=NULL;i<MXUNIT;i++)
  24.             if(units[i].uinode==x
  25.             && units[i].ufd!=NULL
  26.             && units[i].udev == n) {
  27.                 p = &units[i];
  28.                 break;
  29.                 }
  30. #endif
  31.     }
  32.     else
  33.     {
  34.         byfile=0;
  35.         if(a->inunit<MXUNIT && a->inunit>=0)
  36.         {
  37.             p= &units[a->inunit];
  38.         }
  39.         else
  40.         {
  41.             p=NULL;
  42.         }
  43.     }
  44.     if(a->inex!=NULL)
  45.         if(byfile && x != -1 || !byfile && p!=NULL)
  46.             *a->inex=1;
  47.         else *a->inex=0;
  48.     if(a->inopen!=NULL)
  49.         if(byfile) *a->inopen=(p!=NULL);
  50.         else *a->inopen=(p!=NULL && p->ufd!=NULL);
  51.     if(a->innum!=NULL) *a->innum= p-units;
  52.     if(a->innamed!=NULL)
  53.         if(byfile || p!=NULL && p->ufnm!=NULL)
  54.             *a->innamed=1;
  55.         else    *a->innamed=0;
  56.     if(a->inname!=NULL)
  57.         if(byfile)
  58.             b_char(buf,a->inname,a->innamlen);
  59.         else if(p!=NULL && p->ufnm!=NULL)
  60.             b_char(p->ufnm,a->inname,a->innamlen);
  61.     if(a->inacc!=NULL && p!=NULL && p->ufd!=NULL)
  62.         if(p->url)
  63.             b_char("DIRECT",a->inacc,a->inacclen);
  64.         else    b_char("SEQUENTIAL",a->inacc,a->inacclen);
  65.     if(a->inseq!=NULL)
  66.         if(p!=NULL && p->url)
  67.             b_char("NO",a->inseq,a->inseqlen);
  68.         else    b_char("YES",a->inseq,a->inseqlen);
  69.     if(a->indir!=NULL)
  70.         if(p==NULL || p->url)
  71.             b_char("YES",a->indir,a->indirlen);
  72.         else    b_char("NO",a->indir,a->indirlen);
  73.     if(a->infmt!=NULL)
  74.         if(p!=NULL && p->ufmt==0)
  75.             b_char("UNFORMATTED",a->infmt,a->infmtlen);
  76.         else    b_char("FORMATTED",a->infmt,a->infmtlen);
  77.     if(a->inform!=NULL)
  78.         if(p!=NULL && p->ufmt==0)
  79.         b_char("NO",a->inform,a->informlen);
  80.         else b_char("YES",a->inform,a->informlen);
  81.     if(a->inunf)
  82.         if(p!=NULL && p->ufmt==0)
  83.             b_char("YES",a->inunf,a->inunflen);
  84.         else if (p!=NULL) b_char("NO",a->inunf,a->inunflen);
  85.         else b_char("UNKNOWN",a->inunf,a->inunflen);
  86.     if(a->inrecl!=NULL && p!=NULL)
  87.         *a->inrecl=p->url;
  88.     if(a->innrec!=NULL && p!=NULL && p->url>0)
  89.         *a->innrec=ftell(p->ufd)/p->url+1;
  90.     if(a->inblank && p!=NULL && p->ufmt)
  91.         if(p->ublnk)
  92.             b_char("ZERO",a->inblank,a->inblanklen);
  93.         else    b_char("NULL",a->inblank,a->inblanklen);
  94.     return(0);
  95. }
  96.