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authorRickard Green <[email protected]>2017-09-06 17:00:14 +0200
committerRickard Green <[email protected]>2017-09-27 17:47:01 +0200
commiteae496a72e270fd7af411714738e99a7fadfd19b (patch)
tree4fed861eddc50d9676e2fe03bb0dc46c6b8f98bf /lib/stdlib/doc/src/filelib.xml
parent02fd746c40e829adbe77cc526c7df904698e2534 (diff)
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Don't allow null in filenames
Diffstat (limited to 'lib/stdlib/doc/src/filelib.xml')
-rw-r--r--lib/stdlib/doc/src/filelib.xml24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/stdlib/doc/src/filelib.xml b/lib/stdlib/doc/src/filelib.xml
index 80c4acffdb..57c4348745 100644
--- a/lib/stdlib/doc/src/filelib.xml
+++ b/lib/stdlib/doc/src/filelib.xml
@@ -45,6 +45,30 @@
<p>For more information about raw filenames, see the
<seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+ <note>
+ <p>
+ Functionality in this module generally assumes valid input and
+ does not necessarily fail on input that does not use a valid
+ encoding. You can validate the encoding of a filename using
+ <seealso marker="stdlib:filename#validate/1">filename:validate/1</seealso>.
+ </p>
+ <p>
+ File operations used to accept filenames containing
+ null characters (integer value zero). This caused
+ the name to be truncated at the first null character.
+ Filenames containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive
+ file operations fail.
+ </p>
+ </note>
+ <warning><p>
+ Currently null characters at the end of the filename
+ will be accepted by primitive file operations. Such
+ filenames are however still documented as invalid. The
+ implementation will also change in the future and
+ reject such filenames.
+ </p></warning>
</description>
<datatypes>