[Bug 42042] strchr(3) and memchr(3) should explain behaviour when character 'c' is '\0'.

[bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org]

https://bugzilla.kernel.org/show_bug.cgi?id=42042


Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org




--- Comment #6 from Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>  2012-04-23 20:32:31 ---
James,

Thanks for the detailed report, and sorry I've been slow to respond.

For strchr(3), I applied a variation of what you proposed:

--- a/man3/strchr.3
+++ b/man3/strchr.3
@@ -28,7 +28,7 @@
 .\" 2006-05-19, Justin Pryzby <pryzbyj-4haIdLZGnXT/8jPEf8fH3w@public.gmane.org>
 .\"    Document strchrnul(3).
 .\"
-.TH STRCHR 3  2010-09-20 "GNU" "Linux Programmer's Manual"
+.TH STRCHR 3  2012-04-24 "GNU" "Linux Programmer's Manual"
 .SH NAME
 strchr, strrchr, strchrnul \- locate character in string
 .SH SYNOPSIS
@@ -72,6 +72,11 @@ and
 .BR strrchr ()
 functions return a pointer to
 the matched character or NULL if the character is not found.
+The terminating null byte is considered part of the string,
+so that if
+.I c
+is specified as \(aq\\0\(aq,
+these functions return a pointer to the terminator.

 The
 .BR strchrnul ()

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