unix.c: Remove parts of patch of 2005/10/07 that cause input from the terminal to hang.

2005-10-12  Janne Blomqvist <jblomqvi@cc.hut.fi>

	* io/unix.c: Remove parts of patch of 2005/10/07 that cause
	input from the terminal to hang.

From-SVN: r105324

libgfortran/ChangeLog

+2005-10-12  Janne Blomqvist <jblomqvi@cc.hut.fi>
+
+	* io/unix.c: Remove parts of patch of 2005/10/07 that cause
+	input from the terminal to hang.
+
 2005-10-11  Steven G. Kargl  <kargls@comcast.net>
 
 	PR libgfortran/24313

libgfortran/io/unix.c

@@ -440,7 +440,7 @@ static char *
 fd_alloc_r_at (unix_stream * s, int *len, gfc_offset where)
 {
   gfc_offset m;
-  size_t n;
+  int n;
 
   if (where == -1)
     where = s->logical_offset;
@@ -462,8 +462,8 @@ fd_alloc_r_at (unix_stream * s, int *len, gfc_offset where)
   if (s->physical_offset != m && lseek (s->fd, m, SEEK_SET) < 0)
     return NULL;
 
-  n = s->len - s->active;
-  if (do_read (s, s->buffer + s->active, &n) != 0)
+  n = read (s->fd, s->buffer + s->active, s->len - s->active);
+  if (n < 0)
     return NULL;
 
   s->physical_offset = where + n;