manual: cuserid is mtasurace if not passed a string

for ChangeLog * manual/users.texi (cuserid): Fix MT-Safety note for the case of not passing it a buffer. Reported by Peng Haitao.
git-mirror · Nov 21, 2014 · a4ea5e2 · a4ea5e2
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,9 @@
+2014-11-21  Alexandre Oliva <aoliva@redhat.com>
+
+	* manual/users.texi (cuserid): Fix MT-Safety note for the case
+	of not passing it a buffer.
+	Reported by Peng Haitao.
+
 2014-11-21  Alexandre Oliva <aoliva@redhat.com>
 
 	* manual/Makefile ($(objpfx)stamp-summary): Require

diff --git a/manual/users.texi b/manual/users.texi
@@ -927,8 +927,9 @@ this function or to @code{cuserid}.
 @comment stdio.h
 @comment POSIX.1
 @deftypefun {char *} cuserid (char *@var{string})
-@safety{@prelim{}@mtsafe{@mtslocale{}}@asunsafe{@ascudlopen{} @ascuplugin{} @ascuheap{} @asulock{}}@acunsafe{@acucorrupt{} @aculock{} @acsfd{} @acsmem{}}}
-@c cuserid @mtslocale @ascudlopen @ascuplugin @ascuheap @asulock @acucorrupt @aculock @acsfd @acsmem
+@safety{@prelim{}@mtunsafe{@mtasurace{:cuserid/!string} @mtslocale{}}@asunsafe{@ascudlopen{} @ascuplugin{} @ascuheap{} @asulock{}}@acunsafe{@acucorrupt{} @aculock{} @acsfd{} @acsmem{}}}
+@c cuserid @mtasurace:cuserid/!string @mtslocale @ascudlopen @ascuplugin @ascuheap @asulock @acucorrupt @aculock @acsfd @acsmem
+@c   if string is NULL, cuserid will overwrite and return a static buffer
 @c  geteuid dup ok
 @c  getpwuid_r dup @mtslocale @ascudlopen @ascuplugin @ascuheap @asulock @acucorrupt @aculock @acsfd @acsmem
 @c  strncpy dup ok