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/ Amiga MA Magazine 1998 #6 / amigamamagazinepolishissue1998.iso / coders / f2c / i77lib / inquire.c < prev    next >
C/C++ Source or Header  |  1998-11-19  |  3KB  |  118 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 MSDOS
  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 /* MSDOS */
  33.         x = access(buf,0) ? -1 : 0;
  34.         for(i=0,p=NULL;i<MXUNIT;i++)
  35.             if(f__units[i].ufd != NULL
  36.              && f__units[i].ufnm != NULL
  37.              && !strcmp(f__units[i].ufnm,buf)) {
  38.                 p = &f__units[i];
  39.                 break;
  40.                 }
  41. #ifdef _AMIGA
  42. #else /* AMIGA */
  43.         x=f__inode(buf, &n);
  44.         for(i=0,p=NULL;i<MXUNIT;i++)
  45.             if(f__units[i].uinode==x
  46.             && f__units[i].ufd!=NULL
  47.             && f__units[i].udev == n) {
  48.                 p = &f__units[i];
  49.                 break;
  50.                 }
  51. #endif /* AMIGA */
  52. #endif /* MSDOS */
  53.     }
  54.     else
  55.     {
  56.         byfile=0;
  57.         if(a->inunit<MXUNIT && a->inunit>=0)
  58.         {
  59.             p= &f__units[a->inunit];
  60.         }
  61.         else
  62.         {
  63.             p=NULL;
  64.         }
  65.     }
  66.     if(a->inex!=NULL)
  67.         if(byfile && x != -1 || !byfile && p!=NULL)
  68.             *a->inex=1;
  69.         else *a->inex=0;
  70.     if(a->inopen!=NULL)
  71.         if(byfile) *a->inopen=(p!=NULL);
  72.         else *a->inopen=(p!=NULL && p->ufd!=NULL);
  73.     if(a->innum!=NULL) *a->innum= p-f__units;
  74.     if(a->innamed!=NULL)
  75.         if(byfile || p!=NULL && p->ufnm!=NULL)
  76.             *a->innamed=1;
  77.         else    *a->innamed=0;
  78.     if(a->inname!=NULL)
  79.         if(byfile)
  80.             b_char(buf,a->inname,a->innamlen);
  81.         else if(p!=NULL && p->ufnm!=NULL)
  82.             b_char(p->ufnm,a->inname,a->innamlen);
  83.     if(a->inacc!=NULL && p!=NULL && p->ufd!=NULL)
  84.         if(p->url)
  85.             b_char("DIRECT",a->inacc,a->inacclen);
  86.         else    b_char("SEQUENTIAL",a->inacc,a->inacclen);
  87.     if(a->inseq!=NULL)
  88.         if(p!=NULL && p->url)
  89.             b_char("NO",a->inseq,a->inseqlen);
  90.         else    b_char("YES",a->inseq,a->inseqlen);
  91.     if(a->indir!=NULL)
  92.         if(p==NULL || p->url)
  93.             b_char("YES",a->indir,a->indirlen);
  94.         else    b_char("NO",a->indir,a->indirlen);
  95.     if(a->infmt!=NULL)
  96.         if(p!=NULL && p->ufmt==0)
  97.             b_char("UNFORMATTED",a->infmt,a->infmtlen);
  98.         else    b_char("FORMATTED",a->infmt,a->infmtlen);
  99.     if(a->inform!=NULL)
  100.         if(p!=NULL && p->ufmt==0)
  101.         b_char("NO",a->inform,a->informlen);
  102.         else b_char("YES",a->inform,a->informlen);
  103.     if(a->inunf)
  104.         if(p!=NULL && p->ufmt==0)
  105.             b_char("YES",a->inunf,a->inunflen);
  106.         else if (p!=NULL) b_char("NO",a->inunf,a->inunflen);
  107.         else b_char("UNKNOWN",a->inunf,a->inunflen);
  108.     if(a->inrecl!=NULL && p!=NULL)
  109.         *a->inrecl=p->url;
  110.     if(a->innrec!=NULL && p!=NULL && p->url>0)
  111.         *a->innrec=ftell(p->ufd)/p->url+1;
  112.     if(a->inblank && p!=NULL && p->ufmt)
  113.         if(p->ublnk)
  114.             b_char("ZERO",a->inblank,a->inblanklen);
  115.         else    b_char("NULL",a->inblank,a->inblanklen);
  116.     return(0);
  117. }
  118.