1 files changed, 108 insertions, 0 deletions
diff --git a/gcc/f/runtime/libI77/inquire.c b/gcc/f/runtime/libI77/inquire.c
new file mode 100644
index 00000000000..963d4c3e5e8
--- /dev/null
+++ b/gcc/f/runtime/libI77/inquire.c
@@ -0,0 +1,108 @@
+#include "f2c.h"
+#include "fio.h"
+#include <string.h>
+#ifdef KR_headers
+integer f_inqu(a) inlist *a;
+#else
+#if defined (MSDOS) && !defined (GO32)
+#undef abs
+#undef min
+#undef max
+#include "io.h"
+#endif
+integer f_inqu(inlist *a)
+#endif
+{	flag byfile;
+	int i, n;
+	unit *p;
+	char buf[256];
+	long x;
+	if (f__init & 2)
+		f__fatal (131, "I/O recursion");
+	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=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);
+}