#include "v3p_f2c.h"
#include "fio.h"
#include "string.h"
#ifdef NON_UNIX_STDIO
#ifndef MSDOS
#include "unistd.h" /* for access() */
#endif
#endif
#ifdef KR_headers
integer f_inqu(a) inlist *a;
#else
#ifdef __cplusplus
extern "C" integer f_inqu(inlist*);
#endif
#ifdef MSDOS
#undef abs
#undef min
#undef max
#include "io.h"
#endif
integer f_inqu(inlist *a)
#endif
{       flag byfile;
        int i;
#ifndef NON_UNIX_STDIO
        int n;
#endif
        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=(ftnint)(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);
}
