Fixes for dtfile on OpenBSD, plus missing prototypes. Use statfs() on BSD to find out if a file system is NFS.

cde/programs/dtfile/Trash.c

@@ -101,7 +101,12 @@
 #include <dirent.h>
 #include <unistd.h>
 #include <string.h>
+#if defined(CSRG_BASED)
+#include <sys/param.h>
+#include <sys/mount.h>
+#else
 #include <ustat.h>
+#endif
 
 #include <Xm/RowColumn.h>
 #include <Xm/CascadeB.h>
@@ -4106,17 +4111,29 @@ CheckDeletePermission(
   char *parentdir,
   char *destinationPath)
 {
+#if defined(CSRG_BASED)
+  struct statfs statbuf;
+#else
   struct stat statbuf;
+#endif
   char fname[1024];
 
+#if defined(CSRG_BASED)
+  if (statfs(parentdir,&statbuf) < 0)  /* does not exist */
+#else
   if (lstat(parentdir,&statbuf) < 0)  /* does not exist */
+#endif
     return -1;
 
   /* check if we are root */
   if (getuid() == 0)
   {
     /* if NFS, need to check if server trusts root */
+#if defined(CSRG_BASED)
+    if (!strcmp(statbuf.f_fstypename, "nfs"))  /* Root user and nfs */
+#else
     if (FileSysType(statbuf.st_dev) < 0)  /* Root user and nfs */
+#endif
     {
        char *tmpfile;
        tmpfile = tempnam(parentdir,"quang");
@@ -4195,6 +4212,7 @@ CheckDeletePermissionRecur(
   return 0;
 }
 
+#if !defined(CSRG_BASED)
 static int
 FileSysType(
    int dev)
@@ -4204,6 +4222,7 @@ FileSysType(
      return -2;
   return u1.f_tinode;
 }
+#endif
 
 static int
 RestoreObject(