From 1e2f8412e0bd1ab80eae5c6fbcda5fcf139dce2c Mon Sep 17 00:00:00 2001
From: Eivind Eklund <eivind@FreeBSD.org>
Date: Fri, 28 Jul 2000 20:02:42 +0000
Subject: [PATCH] Make passing unknown fstypes to -fstype result in a warning
 instead of an error.  As it was, which find command lines that would work (be
 accepted at all) was dependent on the presently running kernel, making script
 writing and porting hard.

---
 usr.bin/find/function.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/usr.bin/find/function.c b/usr.bin/find/function.c
index 1534ee2cbbb..670d102cc8e 100644
--- a/usr.bin/find/function.c
+++ b/usr.bin/find/function.c
@@ -564,6 +564,14 @@ f_fstype(plan, entry)
 }
 
 #if !defined(__NetBSD__)
+int
+f_always_false(plan, entry)
+	PLAN *plan;
+	FTSENT *entry;
+{
+	return (0);
+}
+
 PLAN *
 c_fstype(arg)
 	char *arg;
@@ -600,8 +608,14 @@ c_fstype(arg)
 		}
 		break;
 	}
-	errx(1, "%s: unknown file type", arg);
-	/* NOTREACHED */
+	/*
+	 * We need to make filesystem checks for filesystems
+	 * that exists but aren't in the kernel work.
+	 */
+	fprintf(stderr, "Warning: Unknown filesystem type %s\n", arg);
+	free(new);
+
+	return (palloc(N_FSTYPE, f_always_false));
 }
 #endif