https://github.com/libsdl-org/libtiff/commit/80a5c283a19d2407318165de391ce9dd2623a0af
From 80a5c283a19d2407318165de391ce9dd2623a0af Mon Sep 17 00:00:00 2001
From: Bob Friesenhahn <[EMAIL REDACTED]>
Date: Sat, 19 May 2012 23:15:07 +0000
Subject: [PATCH] * man/TIFFGetField.3tiff: Correct the 'count' field type in
the example for how to retreive the value of unsupported tags.
---
ChangeLog | 5 +++++
man/TIFFGetField.3tiff | 15 ++++++---------
2 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 22f6aea0..0059f127 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-19 Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
+
+ * man/TIFFGetField.3tiff: Correct the 'count' field type in the
+ example for how to retreive the value of unsupported tags.
+
2012-03-30 Frank Warmerdam <warmerdam@google.com>
* tif_getimage.c: Fix size overflow (zdi-can-1221,CVE-2012-1173)
diff --git a/man/TIFFGetField.3tiff b/man/TIFFGetField.3tiff
index 42c5165f..99f4a51f 100644
--- a/man/TIFFGetField.3tiff
+++ b/man/TIFFGetField.3tiff
@@ -1,4 +1,4 @@
-.\" $Id: TIFFGetField.3tiff,v 1.4.2.1 2010-05-06 02:54:43 olivier Exp $
+.\" $Id: TIFFGetField.3tiff,v 1.4.2.2 2012-05-19 23:15:07 bfriesen Exp $
.\"
.\" Copyright (c) 1988-1997 Sam Leffler
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
@@ -188,14 +188,16 @@ is one, then a single array is returned; otherwise three arrays are returned.
Annex B.3 "Embedding ICC Profiles in TIFF Files" (available at
http://www.color.org) for an explanation.
.SH AUTOREGISTERED TAGS
-If you can't find the tag in the table above that means this is unsupported
-tag. But you still be able to read it's value if you know the data type of
+If you can't find the tag in the table above that means this is an unsupported
+tag and is not directly supported by
+.BR libtiff(3TIFF)
+library. You will still be able to read it's value if you know the data type of
that tag. For example, if you want to read the LONG value from the tag 33424
and ASCII string from the tag 36867 you can use the following code:
.PP
.RS
.nf
-uint16 count;
+uint32 count;
void *data;
TIFFGetField(tiff, 33424, &count, &data);
@@ -205,11 +207,6 @@ printf("Tag %d: %s, count %d\n", 36867, (char *)data, count);
.fi
.RE
.PP
-
-
-is not supported by
-.BR libtiff(3TIFF),
-library
.SH RETURN VALUES
1 is returned if the tag is defined in the current directory; otherwise a 0 is
returned.