Date: Tue, 5 May 2020 17:57:05 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r360664 - head/lib/libc/string Message-ID: <202005051757.045Hv5I6077534@repo.freebsd.org>
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Author: cem Date: Tue May 5 17:57:04 2020 New Revision: 360664 URL: https://svnweb.freebsd.org/changeset/base/360664 Log: strdup.3: Slightly canonicalize OOM return/error status Attempted to clean up the language around "this is a malloc'd object." May be passed as a parameter to free(3) is a bit obtuse. Sponsored by: Dell EMC Isilon Modified: head/lib/libc/string/strdup.3 Modified: head/lib/libc/string/strdup.3 ============================================================================== --- head/lib/libc/string/strdup.3 Tue May 5 17:55:45 2020 (r360663) +++ head/lib/libc/string/strdup.3 Tue May 5 17:57:04 2020 (r360664) @@ -28,7 +28,7 @@ .\" @(#)strdup.3 8.1 (Berkeley) 6/9/93 .\" $FreeBSD$ .\" -.Dd June 6, 2018 +.Dd May 5, 2020 .Dt STRDUP 3 .Os .Sh NAME @@ -51,15 +51,12 @@ allocates sufficient memory for a copy of the string .Fa str , does the copy, and returns a pointer to it. -The pointer may subsequently be used as an -argument to the function -.Xr free 3 . +The memory is allocated with +.Xr malloc 3 +and should be released with +.Xr free 3 +when no longer needed. .Pp -If insufficient memory is available, NULL is returned and -.Va errno -is set to -.Er ENOMEM . -.Pp The .Fn strndup function copies at most @@ -69,6 +66,14 @@ characters from the string always .Dv NUL terminating the copied string. +.Sh RETURN VALUES +If insufficient memory is available, NULL is returned and +.Va errno +is set to +.Er ENOMEM . +Otherwise, the +.Fn strdup +family of functions return a pointer to the copied string. .Sh SEE ALSO .Xr free 3 , .Xr malloc 3 ,
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