Commit Graph

13 Commits

Author SHA1 Message Date
Yann E. MORIN
00d34e8a6f support/mkusers: rename variable to avoid name clashing
The LINES variable is automatically set by bash to represent the number
of lines in the terminal. That variable can be set when the shell
receives SIGWINCH.

If the shell does receive SIGWINCH after our LINES array is filled, the
content of the array is mangled.

Rename the variable to avoid that.

Fixes #9456

Reported-by: George Y. <georgebrmz@oss3d.com>
Reported-by: Paul Stewart <paulstewartis@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-03-04 11:56:51 +01:00
Danomi Manchego
1ac9d83f55 mkusers: fix spelling in intro comment
Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-12-20 09:32:06 +01:00
Yann E. MORIN
f0c4456530 support/mkusers: allow comments in users tables
The format of the users table files is non trivial, so it is sometimes
handy to add comments explaining the syntax (or simply the reason for
the user) inline in the files.

Ignore empty lines and comment lines prefixed with '#' similar to shell
or makedevs files.

Packages that defined no user (the vast majority) would cause an empty
line to be present in the internal users table, hence the reason we
skipped empty usernames. Now that we ignore empty lines, we no longer
need to check for empty usernames.

Reported-by: Peter Korsgaard <jacmet@uclibc.org>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Peter Korsgaard <jacmet@uclibc.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-10-18 17:52:21 +02:00
James Knight
8d972df185 scripts/mkusers: allow users with no password value set
The following allows a user definition to specify that a created user
entry should not have a password value set. Original implementation
allowed a user definition to provide a password value of "=" (no quotes)
to generate a crypt-encoded empty string value. In some cases, it may be
desired to have no value specified for a user's password. By using a
value "-" for a password, no value will be set in the shadow value.

An example when this can be used is when logging into a terminal.
Logging into a session with an encoded empty password will prompt a user
to enter a password since it does not know the password is empty. If the
password field blank, a login session will not prompt for a password.

Signed-off-by: James Knight <james.knight@rockwellcollins.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-06-09 23:13:41 +02:00
Yann E. MORIN
96a8321a3c support/mkusers: enhance error messages
The current error messages are a bit terse, and do not provide all the
required information.

Expand them to provide more context.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Tom Elliott <tommygunsster@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-03-29 13:39:25 +02:00
Bjørn Forsman
acc76a6ef9 Change /bin/bash shebangs into /usr/bin/env bash
Not all systems have /bin/bash (e.g. NixOS[1] doesn't). Buildroot
already uses /usr/bin/env shebangs for other interpreters (perl,
python), so why not bash?

This changes only the shebangs used by Buildroot itself; stuff installed
to the target system is left unchanged.

With this applied I can run Buildroot unmodified on NixOS.

[1]: http://nixos.org/

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-10-25 01:55:37 +02:00
Gustavo Zacarias
2ff8f54e79 scripts/mkusers: allow the creation of groups alone
Let mkusers create groups alone, useful for supplementary permissions in
udev/systemd for example where users can be added to later at runtime.
Use a magic string "-" to signal that user creation should be skipped.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-10-22 21:39:12 +02:00
Yann E. MORIN
3fbd9887b3 filesystems: also chown symlinks
Currently, the symlinks in the generated filesystems will have the
UID of the user running the build, because 'chown' does not change
the ownership of symlinks, by default.

Although the implications are limited, some may not want that UID
to leak in the generated filesystems.

So, use 'chown -h' so even symlinks get properly chowned.

Reported-by: Angelo Dureghello <angelo@barix.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-06-09 11:28:57 +02:00
Yann E. MORIN
4955a31cec support/mkusers: fix warnings when adding a new user
When adding a new user (or a new group), we would get warnings, like:
  [...]/support/scripts/mkusers: line 145: [: too many arguments

This is because we're checking if a UID (or a GID) is already defined,
and/or is different from the requested one, both checks in the same
test.

Of course, if a UID (or a GID) is not defined, it does not have a value,
so we can not compare it to an integer.

Fix that by splitting the test in two, so the second is only executed if
the first is sucessful.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-04-05 18:39:16 +02:00
Philip Paeps
b083c0ba4b support: fix typo in mkusers
This fixes the spurious "[: too many arguments" errors from mkusers.

Signed-off-by: Philip Paeps <philip@paeps.cx>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-03-05 19:41:44 +01:00
Arnout Vandecappelle
4113b3c3bd infra: replace BUILDROOT_CONFIG with BR2_CONFIG
To make the naming consistent (all user-visible options should be
prefixed with BR2_).

An entry is added to Makefile.legacy to warn users who have set
BUILDROOT_CONFIG but not BR2_CONFIG.

Still export BUILDROOT_CONFIG but pointing to some phony value, to
make sure that scripts that still use it fail in a predictable way.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Tested-by: Jérémy Rosen <jeremy.rosen@openwide.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-02-09 17:00:13 +01:00
Samuel Martin
f34b761e05 support: fix typo in mkusers
This patch fixes typos in the 'encode_password' function calls.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2013-12-04 13:11:32 +01:00
Yann E. MORIN
1f3af04db7 packages: add ability for packages to create users
Packages that install daemons may need those daemons to run as a non-root,
or an otherwise non-system (eg. 'daemon'), user.

Add infrastructure for packages to create users, by declaring the FOO_USERS
variable that contain a makedev-syntax-like description of the user(s) to
add.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Samuel Martin <s.martin49@gmail.com>
Cc: Cam Hutchison <camh@xdna.net>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-04-25 22:56:42 +02:00