1 files changed, 93 insertions, 0 deletions
diff --git a/contrib/libf2c/libI77/sue.c b/contrib/libf2c/libI77/sue.c
new file mode 100644
index 0000000..a20df66
--- /dev/null
+++ b/contrib/libf2c/libI77/sue.c
@@ -0,0 +1,93 @@
+#include "config.h"
+#include "f2c.h"
+#include "fio.h"
+extern uiolen f__reclen;
+off_t f__recloc;
+
+int
+c_sue (cilist * a)
+{
+  f__external = f__sequential = 1;
+  f__formatted = 0;
+  f__curunit = &f__units[a->ciunit];
+  if (a->ciunit >= MXUNIT || a->ciunit < 0)
+    err (a->cierr, 101, "startio");
+  f__elist = a;
+  if (f__curunit->ufd == NULL && fk_open (SEQ, UNF, a->ciunit))
+    err (a->cierr, 114, "sue");
+  f__cf = f__curunit->ufd;
+  if (f__curunit->ufmt)
+    err (a->cierr, 103, "sue");
+  if (!f__curunit->useek)
+    err (a->cierr, 103, "sue");
+  return (0);
+}
+
+integer
+s_rsue (cilist * a)
+{
+  int n;
+  if (f__init != 1)
+    f_init ();
+  f__init = 3;
+  f__reading = 1;
+  if ((n = c_sue (a)))
+    return (n);
+  f__recpos = 0;
+  if (f__curunit->uwrt && f__nowreading (f__curunit))
+    err (a->cierr, errno, "read start");
+  if (fread ((char *) &f__reclen, sizeof (uiolen), 1, f__cf) != 1)
+    {
+      if (feof (f__cf))
+	{
+	  f__curunit->uend = 1;
+	  err (a->ciend, EOF, "start");
+	}
+      clearerr (f__cf);
+      err (a->cierr, errno, "start");
+    }
+  return (0);
+}
+
+integer
+s_wsue (cilist * a)
+{
+  int n;
+  if (f__init != 1)
+    f_init ();
+  f__init = 3;
+  if ((n = c_sue (a)))
+    return (n);
+  f__reading = 0;
+  f__reclen = 0;
+  if (f__curunit->uwrt != 1 && f__nowwriting (f__curunit))
+    err (a->cierr, errno, "write start");
+  f__recloc = FTELL (f__cf);
+  FSEEK (f__cf, (off_t) sizeof (uiolen), SEEK_CUR);
+  return (0);
+}
+
+integer
+e_wsue (void)
+{
+  off_t loc;
+  f__init = 1;
+  fwrite ((char *) &f__reclen, sizeof (uiolen), 1, f__cf);
+#ifdef ALWAYS_FLUSH
+  if (fflush (f__cf))
+    err (f__elist->cierr, errno, "write end");
+#endif
+  loc = FTELL (f__cf);
+  FSEEK (f__cf, f__recloc, SEEK_SET);
+  fwrite ((char *) &f__reclen, sizeof (uiolen), 1, f__cf);
+  FSEEK (f__cf, loc, SEEK_SET);
+  return (0);
+}
+
+integer
+e_rsue (void)
+{
+  f__init = 1;
+  FSEEK (f__cf, (off_t) (f__reclen - f__recpos + sizeof (uiolen)), SEEK_CUR);
+  return (0);
+}