snprintf: guarantee %1$d, for libintl

[pspp] / doc / posix-functions / ioctl.texi

diff --git a/doc/posix-functions/ioctl.texi b/doc/posix-functions/ioctl.texi
index 56380a8526683fae11b5f12a23ef106ed193e011..0afe64bb1b6e7c590b7671b61606f0c225a0e817 100644 (file)
--- a/doc/posix-functions/ioctl.texi
+++ b/doc/posix-functions/ioctl.texi
@@ -2,19 +2,23 @@
 @section @code{ioctl}
 @findex ioctl
 
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/ioctl.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ioctl.html}
 
-Gnulib module: ---
+Gnulib module: ioctl
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+On Windows platforms (excluding Cygwin), @code{ioctl} is called
+@code{ioctlsocket}, and error codes for this function are not placed in
+@code{errno}, and @code{WSAGetLastError} must be used instead.
+@item
+On glibc platforms, the second parameter is of type @code{unsigned long}
+rather than @code{int}.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
 @item
-This function is missing on some platforms:
-mingw.
-@item
 Most @code{ioctl} requests are platform and hardware specific.
 @end itemize