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package/nss-myhostname: Add package

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nss-myhostname is helpful to resolve local hostname without domain.
For instance, if we set hostname to myboard and ping myboard
without .local suffix, it fails if /etc/hosts stays unchanged.

nss-myhostname modifies /etc/nsswitch.conf file.
It set myhostname resolution just after files in hosts line,
for example:
    hosts: files myhostname mdns4_minimal [NOTFOUND=return] dns

This choice comes from Debian commit [1] and Yocto recipe [2].
Also, nss-myhostname author suggests myhostname should be used as
a backup and appended at the end of hosts line. Both choices are valid.

Discussion on Debian bug tracker [3] gives some details on issue
that may occurs using nss-myhostname (see fqdn).

Note nss-myhostname is already included in systemd, so ensure is conflicts
with it.

[1] http://git.nomeata.de/?p=libnss-myhostname.git;a=commit;h=5104d7f0045df55ee8be526e8c84078750e1e0ed
[2] https://git.yoctoproject.org/cgit.cgi/poky/plain/meta/recipes-support/nss-myhostname/nss-myhostname_0.3.bb
[3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756224

[Peter: simplify sed invocation, adjust Config.in]
Signed-off-by: Vincent Prince <vincent.prince.fr@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Vincent Prince 2018-05-29 10:00:12 +02:00 committed by Peter Korsgaard
parent 27d22993ba
commit d25f4ce2ee
5 changed files with 39 additions and 0 deletions
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3
DEVELOPERS
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@ -2139,6 +2139,9 @@ F: package/openmpi/
F: package/pinentry/
F: package/trinity/
N: Vincent Prince <vincent.prince.fr@gmail.com>
F: package/nss-myhostname/
N: Vincent Stehlé <vincent.stehle@laposte.net>
F: package/i7z/
F: package/msr-tools/

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package/Config.in
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@ -1555,6 +1555,7 @@ menu "Networking"
source "package/nghttp2/Config.in"
source "package/norm/Config.in"
source "package/nss-mdns/Config.in"
source "package/nss-myhostname/Config.in"
source "package/nss-pam-ldapd/Config.in"
source "package/omniorb/Config.in"
source "package/openldap/Config.in"

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package/nss-myhostname/Config.in Normal file
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@ -0,0 +1,12 @@
config BR2_PACKAGE_NSS_MYHOSTNAME
bool "nss-myhostname"
depends on BR2_TOOLCHAIN_USES_GLIBC
depends on !BR2_PACKAGE_SYSTEMD_MYHOSTNAME
help
Name Service Switch module for resolving the local hostname
http://0pointer.de/lennart/projects/nss-myhostname
comment "nss-myhostname needs a glibc toolchain"
depends on !BR2_TOOLCHAIN_USES_GLIBC
depends on !BR2_PACKAGE_SYSTEMD_MYHOSTNAME

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package/nss-myhostname/nss-myhostname.hash Normal file
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@ -0,0 +1,3 @@
# locally computed
sha256 2ba744ea8d578d1c57c85884e94a3042ee17843a5294434d3a7f6c4d67e7caf2 nss-myhostname-0.3.tar.gz
sha256 a9bdde5616ecdd1e980b44f360600ee8783b1f99b8cc83a2beb163a0a390e861 LICENSE

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package/nss-myhostname/nss-myhostname.mk Normal file
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@ -0,0 +1,20 @@
################################################################################
#
## nss-myhostname
#
################################################################################
NSS_MYHOSTNAME_VERSION = 0.3
NSS_MYHOSTNAME_SITE = http://0pointer.de/lennart/projects/nss-myhostname
NSS_MYHOSTNAME_LICENSE = LGPL-2.1+
NSS_MYHOSTNAME_LICENSE_FILES = LICENSE
# add myhostname after files if missing
define MYHOSTNAME_SET_NSSWITCH
$(SED) '/^hosts:/ {/myhostname/! s/files/files myhostname/}' \
$(TARGET_DIR)/etc/nsswitch.conf
endef
NSS_MYHOSTNAME_TARGET_FINALIZE_HOOKS += MYHOSTNAME_SET_NSSWITCH
$(eval $(autotools-package))