1 files changed, 80 insertions, 0 deletions
diff --git a/gnu/usr.bin/cvs/lib/strippath.c b/gnu/usr.bin/cvs/lib/strippath.c
new file mode 100644
index 00000000000..39687f92b80
--- /dev/null
+++ b/gnu/usr.bin/cvs/lib/strippath.c
@@ -0,0 +1,80 @@
+/* strippath.c -- remove unnecessary components from a path specifier
+   Copyright (C) 1992 Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if STDC_HEADERS || HAVE_STRING_H
+#include <string.h>
+/* An ANSI string.h and pre-ANSI memory.h might conflict. */
+#if !STDC_HEADERS && HAVE_MEMORY_H
+#include <memory.h>
+#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
+#else /* not STDC_HJEADERS and not HAVE_STRING_H */
+#include <strings.h>
+/* memory.h and strings.h conflict on some systems. */
+#endif /* not STDC_HEADERS and not HAVE_STRING_H */
+
+#include <stdio.h>
+
+#if __STDC__
+static void remove_component(char *beginc, char *endc);
+void strip_trailing_slashes(char *path);
+#else
+static void remove_component();
+void strip_trailing_slashes();
+#endif /* __STDC__ */
+
+/* Remove unnecessary components from PATH. */
+
+void
+strip_path (path)
+     char *path;
+{
+  int stripped = 0;
+  char *cp, *slash;
+
+  for (cp = path; (slash = strchr(cp, '/')) != NULL; cp = slash)
+    {
+      *slash = '\0';
+      if ((!*cp && (cp != path || stripped)) ||
+	  strcmp(cp, ".") == 0 || strcmp(cp, "/") == 0)
+	{
+	  stripped = 1;
+	  remove_component(cp, slash);
+	  slash = cp;
+	}
+      else
+	{
+	  *slash++ = '/';
+	}
+    }
+  strip_trailing_slashes(path);
+}
+
+/* Remove the component delimited by BEGINC and ENDC from the path */
+
+static void
+remove_component (beginc, endc)
+     char *beginc;
+     char *endc;
+{
+  for (endc++; *endc; endc++)
+    *beginc++ = *endc;
+  *beginc = '\0';
+}