[PATCH 2/5] added config item USE_BB_THREADSAFE_SHADOW

[Manuel Zerpies]

bump.
On Fri, Nov 16, 2012 at 07:36:31PM +0100, Manuel Zerpies wrote:
> From: Manuel Zerpies <manuel.f.zerpies at ww.stud.uni-erlangen.de>
> 
> now it is possible to force busybox to use the threadsafe version
> of the shadow password implementation.
> ---
>  libpwdgrp/pwd_grp.c   |    2 --
>  loginutils/Config.src |   20 ++++++++++++++++++++
>  2 files changed, 20 insertions(+), 2 deletions(-)
> 
> diff --git a/libpwdgrp/pwd_grp.c b/libpwdgrp/pwd_grp.c
> index edf53f3..9b2637d 100644
> --- a/libpwdgrp/pwd_grp.c
> +++ b/libpwdgrp/pwd_grp.c
> @@ -370,8 +370,6 @@ struct spwd *getspnam(const char *name)
>  
>  /**********************************************************************/
>  
> -/* FIXME: we don't have such CONFIG_xx - ?! */
> -
>  #if defined CONFIG_USE_BB_THREADSAFE_SHADOW && defined PTHREAD_MUTEX_INITIALIZER
>  static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER;
>  # define LOCK		pthread_mutex_lock(&mylock)
> diff --git a/loginutils/Config.src b/loginutils/Config.src
> index 9bf79af..e41548e 100644
> --- a/loginutils/Config.src
> +++ b/loginutils/Config.src
> @@ -59,6 +59,26 @@ config USE_BB_SHADOW
>  	  able to use PAM to access shadow passwords from remote LDAP
>  	  password servers and whatnot.
>  
> +config USE_BB_THREADSAFE_SHADOW
> +	bool "threadsafe shadow"
> +	default y
> +	depends on USE_BB_PWD_GRP && FEATURE_SHADOWPASSWDS
> +	help
> +	  This is the threadsafe version of USE_BB_SHADOW.
> +	  If you leave this disabled, busybox will use the system's shadow
> +	  password handling functions. And if you are using the GNU C library
> +	  (glibc), you will then need to install the /etc/nsswitch.conf
> +	  configuration file and the required /lib/libnss_* libraries in
> +	  order for the shadow password functions to work. This generally
> +	  makes your embedded system quite a bit larger.
> +
> +	  Enabling this option will cause busybox to directly access the
> +	  system's /etc/shadow file when handling shadow passwords. This
> +	  makes your system smaller (and I will get fewer emails asking about
> +	  how glibc NSS works). When this option is enabled, you will not be
> +	  able to use PAM to access shadow passwords from remote LDAP
> +	  password servers and whatnot.
> +
>  config USE_BB_CRYPT
>  	bool "Use internal crypt functions"
>  	default y
> -- 
> 1.7.9.5
>