patches/glibc/ports-2.12.1/300-nscd-one-fork.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
permissions -rw-r--r--
cc/gcc: diable libsanitizer without NPTL

gcc-4.8 comes with a new library to sanitise memory access:
- heap-, stack-, and global-buffer overflow, use-after-free
- data-races between threads

This library requires some _np parts of the API, which are not
implemented in the (old) LinuxThreads, which is still available
in uClibc.

Since NPTL requires a i486 or above, i386 are stuck with using LT,
which precludes building the libsanitizer.

Disable libsanitizer, a bit like libatomic is.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Niels Penneman <niels@penneman.org>
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only fork one to assist in stop-start-daemon assumptions about daemon behavior
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http://bugs.gentoo.org/190785
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diff -durN glibc-2.12.1.orig/nscd/nscd.c glibc-2.12.1/nscd/nscd.c
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--- glibc-2.12.1.orig/nscd/nscd.c	2009-02-06 21:10:27.000000000 +0100
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+++ glibc-2.12.1/nscd/nscd.c	2009-11-13 00:50:24.000000000 +0100
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@@ -182,6 +182,9 @@
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       if (pid != 0)
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 	exit (0);
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+       if (write_pid (_PATH_NSCDPID) < 0)
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+	dbg_log ("%s: %s", _PATH_NSCDPID, strerror (errno));
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+
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       int nullfd = open (_PATH_DEVNULL, O_RDWR);
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       if (nullfd != -1)
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 	{
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@@ -231,12 +234,6 @@
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 	for (i = min_close_fd; i < getdtablesize (); i++)
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 	  close (i);
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-      pid = fork ();
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-      if (pid == -1)
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-	error (EXIT_FAILURE, errno, _("cannot fork"));
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-      if (pid != 0)
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-	exit (0);
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-
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       setsid ();
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       if (chdir ("/") != 0)
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@@ -245,9 +242,6 @@
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       openlog ("nscd", LOG_CONS | LOG_ODELAY, LOG_DAEMON);
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-      if (write_pid (_PATH_NSCDPID) < 0)
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-	dbg_log ("%s: %s", _PATH_NSCDPID, strerror (errno));
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-
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       if (!init_logfile ())
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 	dbg_log (_("Could not create log file"));
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