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Viewing changes to debian/patches/hurd-i386/tg-null-pathname.diff

  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2011-10-04 17:48:26 UTC
  • mfrom: (216.1.23 oneiric)
  • Revision ID: package-import@ubuntu.com-20111004174826-2cyb9ewn3ucymlsx
Tags: 2.13-20ubuntu5
https://launchpad.net/bugs/853688
libc6-dev: Don't break the current {gnat,gcj}-4.4-base versons. LP: #853688.

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debian/patches/hurd-i386/tg-null-pathname.diff
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From: Samuel Thibault <samuel.thibault@ens-lyon.org>
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Subject: [PATCH] null pathnames shall return ENOENT
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Here is a patch to fix chdir("") and chroot("") into returning ENOENT as
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required by POSIX.
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2009-09-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>
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        * hurd/hurdchdir.c (_hurd_change_directory_port_from_name):
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        Return ENOENT when name is empty.
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        * sysdeps/mach/hurd/chroot.c (chroot): Return ENOENT when path
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        is empty.
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---
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http://sources.redhat.com/ml/libc-alpha/2009-09/msg00025.html
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 hurd/hurdchdir.c           |    6 ++++++
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 sysdeps/mach/hurd/chroot.c |    6 ++++++
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 2 files changed, 12 insertions(+), 0 deletions(-)
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diff --git a/hurd/hurdchdir.c b/hurd/hurdchdir.c
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index 5115e4d..b1cc7a5 100644
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--- a/hurd/hurdchdir.c
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+++ b/hurd/hurdchdir.c
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@@ -38,6 +38,12 @@ _hurd_change_directory_port_from_name (struct hurd_port *portcell,
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   len = strlen (name);
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   if (len >= 2 && name[len - 2] == '/' && name[len - 1] == '.')
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     lookup = name;
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+  else if (len == 0)
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+    {
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+      /* Special-case null pathname according to POSIX */
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+      errno = ENOENT;
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+      return -1;
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+    }
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   else
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     {
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       char *n = alloca (len + 3);
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diff --git a/sysdeps/mach/hurd/chroot.c b/sysdeps/mach/hurd/chroot.c
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index fde0164..cabeb7d 100644
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--- a/sysdeps/mach/hurd/chroot.c
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+++ b/sysdeps/mach/hurd/chroot.c
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@@ -38,6 +38,12 @@ chroot (const char *path)
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   len = strlen (path);
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   if (len >= 2 && path[len - 2] == '/' && path[len - 1] == '.')
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     lookup = path;
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+  else if (len == 0)
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+    {
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+      /* Special-case null pathname according to POSIX */
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+      errno = ENOENT;
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+      return -1;
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+    }
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   else
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     {
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       char *n = alloca (len + 3);
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tg: (0234227..) t/null-pathname (depends on: baseline)