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diff --git a/lib/prfp.c b/lib/prfp.c
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+/*
+ * prfp.c -- process_file() function for lsof library
+ */
+
+
+/*
+ * Copyright 1997 Purdue Research Foundation, West Lafayette, Indiana
+ * 47907. All rights reserved.
+ *
+ * Written by Victor A. Abell
+ *
+ * This software is not subject to any license of the American Telephone
+ * and Telegraph Company or the Regents of the University of California.
+ *
+ * Permission is granted to anyone to use this software for any purpose on
+ * any computer system, and to alter it and redistribute it freely, subject
+ * to the following restrictions:
+ *
+ * 1. Neither the authors nor Purdue University are responsible for any
+ * consequences of the use of this software.
+ *
+ * 2. The origin of this software must not be misrepresented, either by
+ * explicit claim or by omission. Credit to the authors and Purdue
+ * University must appear in documentation and sources.
+ *
+ * 3. Altered versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ *
+ * 4. This notice may not be removed or altered.
+ */
+
+
+#include "../machine.h"
+
+#if defined(USE_LIB_PROCESS_FILE)
+
+# if !defined(lint)
+static char copyright[] =
+"@(#) Copyright 1997 Purdue Research Foundation.\nAll rights reserved.\n";
+static char *rcsid = "$Id: prfp.c,v 1.14 2008/10/21 16:12:36 abe Exp $";
+# endif /* !defined(lint) */
+
+#include "../lsof.h"
+
+
+/*
+ * process_file() - process file
+ */
+
+/*
+ * The caller may define:
+ *
+ * FILEPTR as the name of the location to store a pointer
+ * to the current file struct -- e.g.,
+ *
+ * struct file *foobar;
+ * #define FILEPTR foobar
+ */
+
+void
+process_file(fp)
+ KA_T fp; /* kernel file structure address */
+{
+ struct file f;
+ int flag;
+ char tbuf[32];
+
+#if defined(FILEPTR)
+/*
+ * Save file structure address for process_node().
+ */
+ FILEPTR = &f;
+#endif /* defined(FILEPTR) */
+
+/*
+ * Read file structure.
+ */
+ if (kread((KA_T)fp, (char *)&f, sizeof(f))) {
+ (void) snpf(Namech, Namechl, "can't read file struct from %s",
+ print_kptr(fp, (char *)NULL, 0));
+ enter_nm(Namech);
+ return;
+ }
+ Lf->off = (SZOFFTYPE)f.f_offset;
+ if (f.f_count) {
+
+ /*
+ * Construct access code.
+ */
+ if ((flag = (f.f_flag & (FREAD | FWRITE))) == FREAD)
+ Lf->access = 'r';
+ else if (flag == FWRITE)
+ Lf->access = 'w';
+ else if (flag == (FREAD | FWRITE))
+ Lf->access = 'u';
+
+#if defined(HASFSTRUCT)
+ /*
+ * Save file structure values.
+ */
+
+# if !defined(HASNOFSCOUNT)
+ if (Fsv & FSV_CT) {
+ Lf->fct = (long)f.f_count;
+ Lf->fsv |= FSV_CT;
+ }
+# endif /* !defined(HASNOFSCOUNT) */
+
+# if !defined(HASNOFSADDR)
+ if (Fsv & FSV_FA) {
+ Lf->fsa = fp;
+ Lf->fsv |= FSV_FA;
+ }
+# endif /* !defined(HASNOFSADDR) */
+
+# if !defined(HASNOFSFLAGS)
+ if (Fsv & FSV_FG) {
+ Lf->ffg = (long)f.f_flag;
+ Lf->fsv |= FSV_FG;
+ }
+# endif /* !defined(HASNOFSFLAGS) */
+
+# if !defined(HASNOFSNADDR)
+ if (Fsv & FSV_NI) {
+ Lf->fna = (KA_T)f.f_data;
+ Lf->fsv |= FSV_NI;
+ }
+# endif /* !defined(HASNOFSNADDR) */
+#endif /* defined(HASFSTRUCT) */
+
+ /*
+ * Process structure by its type.
+ */
+ switch (f.f_type) {
+
+
+#if defined(DTYPE_PIPE)
+ case DTYPE_PIPE:
+# if defined(HASPIPEFN)
+ if (!Selinet)
+ HASPIPEFN((KA_T)f.f_data);
+# endif /* defined(HASPIPEFN) */
+ return;
+#endif /* defined(DTYPE_PIPE) */
+
+#if defined(DTYPE_GNODE)
+ case DTYPE_GNODE:
+#endif /* defined(DTYPE_GNODE) */
+
+#if defined(DTYPE_INODE)
+ case DTYPE_INODE:
+#endif /* defined(DTYPE_INODE) */
+
+#if defined(DTYPE_PORT)
+ case DTYPE_PORT:
+#endif /* defined(DTYPE_PORT) */
+
+#if defined(DTYPE_VNODE)
+ case DTYPE_VNODE:
+#endif /* defined(DTYPE_VNODE) */
+
+#if defined(HASF_VNODE)
+ process_node((KA_T)f.f_vnode);
+#else /* !defined(HASF_VNODE) */
+ process_node((KA_T)f.f_data);
+#endif /* defined(HASF_VNODE) */
+
+ return;
+ case DTYPE_SOCKET:
+ process_socket((KA_T)f.f_data);
+ return;
+
+#if defined(HASKQUEUE)
+ case DTYPE_KQUEUE:
+ process_kqueue((KA_T)f.f_data);
+ return;
+#endif /* defined(HASKQUEUE) */
+
+#if defined(HASPSXSEM)
+ case DTYPE_PSXSEM:
+ process_psxsem((KA_T)f.f_data);
+ return;
+#endif /* defined(HASPSXSEM) */
+
+#if defined(HASPSXSHM)
+ case DTYPE_PSXSHM:
+ process_psxshm((KA_T)f.f_data);
+ return;
+#endif /* defined(HASPSXSHM) */
+
+#if defined(HASPRIVFILETYPE)
+ case PRIVFILETYPE:
+ HASPRIVFILETYPE((KA_T)f.f_data);
+ return;
+#endif /* defined(HASPRIVFILETYPE) */
+
+ default:
+ if (f.f_type || f.f_ops) {
+ (void) snpf(Namech, Namechl,
+ "%s file struct, ty=%#x, op=%s",
+ print_kptr(fp, tbuf, sizeof(tbuf)), (int)f.f_type,
+ print_kptr((KA_T)f.f_ops, (char *)NULL, 0));
+ enter_nm(Namech);
+ return;
+ }
+ }
+ }
+ enter_nm("no more information");
+}
+#else /* !defined(USE_LIB_PROCESS_FILE) */
+char prfp_d1[] = "d"; char *prfp_d2 = prfp_d1;
+#endif /* defined(USE_LIB_PROCESS_FILE) */