X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=doc%2Fposix-functions%2Frenameat.texi;h=ff08b09b279d9dc798b4976c8a2ac5f115ad0597;hb=7c59efd8bc7abb8c79ae969a65ece95e68c9be4c;hp=1cee1bdfa50d857a1afcd1e6cfd2e0996fe7445e;hpb=17f87c3231d8808b8e873126abf15e6e8b9a0e67;p=gnulib.git diff --git a/doc/posix-functions/renameat.texi b/doc/posix-functions/renameat.texi index 1cee1bdfa..ff08b09b2 100644 --- a/doc/posix-functions/renameat.texi +++ b/doc/posix-functions/renameat.texi @@ -4,15 +4,38 @@ POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/renameat.html} -Gnulib module: --- +Gnulib module: renameat Portability problems fixed by Gnulib: @itemize +@item +This function does not reject trailing slashes on non-directories on +some platforms, as in @code{renameat(fd,"file",fd,"new/")}: +Solaris 10. +@item +This function ignores trailing slashes on symlinks on some platforms, +such that @code{renameat(fd,"link/",fd,"new")} corrupts @file{link}: +Solaris 9. +@item +This function is missing on some platforms: +glibc 2.3.6, MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX +5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 8, Cygwin 1.5.x, mingw, +Interix 3.5, BeOS. +But the replacement function is not safe to be used in libraries and is not multithread-safe. @end itemize Portability problems not fixed by Gnulib: @itemize @item -This function is missing on some platforms: -glibc 2.3.6, MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin, mingw, Interix 3.5, BeOS. +POSIX requires that @code{renameat(fd,"symlink-to-dir/",fd,"dir2")} rename +@file{dir} and leave @file{symlink-to-dir} dangling; likewise, it +requires that @code{renameat(fd,"dir",fd,"dangling/")} rename @file{dir} so +that @file{dangling} is no longer a dangling symlink. This behavior +is counter-intuitive, so on some systems, @code{renameat} fails with +@code{ENOTDIR} if either argument is a symlink with a trailing slash: +glibc, OpenBSD, Cygwin 1.7. +@item +This function will not rename a source that is currently opened +by any process: +mingw. @end itemize