1 files changed, 69 insertions, 0 deletions
diff --git a/diff/diffrun.h b/diff/diffrun.h
new file mode 100644
index 0000000..9ee804b
--- /dev/null
+++ b/diff/diffrun.h
@@ -0,0 +1,69 @@
+/* Interface header file for GNU DIFF library.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+
+This file is part of GNU DIFF.
+
+GNU DIFF is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU DIFF is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+*/
+
+#ifndef DIFFRUN_H
+#define DIFFRUN_H
+
+/* This header file defines the interfaces used by the diff library.
+   It should be included by programs which use the diff library.  */
+
+#include <sys/types.h>
+
+#if defined __STDC__ && __STDC__
+#define DIFFPARAMS(args) args
+#else
+#define DIFFPARAMS(args) ()
+#endif
+
+/* The diff_callbacks structure is used to handle callbacks from the
+   diff library.  All output goes through these callbacks.  When a
+   pointer to this structure is passed in, it may be NULL.  Also, any
+   of the individual callbacks may be NULL.  This means that the
+   default action should be taken.  */
+
+struct diff_callbacks
+{
+  /* Write output.  This function just writes a string of a given
+     length to the output file.  The default is to fwrite to OUTFILE.
+     If this callback is defined, flush_output must also be defined.
+     If the length is zero, output zero bytes.  */
+  void (*write_output) DIFFPARAMS((char const *, size_t));
+  /* Flush output.  The default is to fflush OUTFILE.  If this
+     callback is defined, write_output must also be defined.  */
+  void (*flush_output) DIFFPARAMS((void));
+  /* Write a '\0'-terminated string to stdout.
+     This is called for version and help messages.  */
+  void (*write_stdout) DIFFPARAMS((char const *));
+  /* Print an error message.  The first argument is a printf format,
+     and the next two are parameters.  The default is to print a
+     message on stderr.  */
+  void (*error) DIFFPARAMS((char const *, char const *, char const *));
+};
+
+/* Run a diff.  */
+
+extern int diff_run DIFFPARAMS((int, char **, const char *,
+				const struct diff_callbacks *));
+
+/* Run a diff3.  */
+
+extern int diff3_run DIFFPARAMS((int, char **, char *,
+				 const struct diff_callbacks *));
+
+#undef DIFFPARAMS
+
+#endif /* DIFFRUN_H */