From 0a1d15d3b802128cc9be10c849c29b76a8fae3ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Wed, 2 Oct 2013 13:23:10 +0200
Subject: [PATCH] execute.c: always set $SHELL
In e6dca81 $SHELL was added to user@.service. Let's
instead provide it to all units which have a user.
---
TODO | 2 --
man/systemd.exec.xml | 21 +++++++++++++++++--
src/core/execute.c | 56 +++++++++++++++++---------------------------------
units/user@.service.in | 1 -
4 files changed, 38 insertions(+), 42 deletions(-)
diff --git a/TODO b/TODO
index 07269f4..425f673 100644
--- a/TODO
+++ b/TODO
@@ -54,8 +54,6 @@ CGroup Rework Completion:
Features:
-* set $SHELL where we set $HOME and $USER when User= is set of a service, drop its manual setting from user@.service
-
* we probably should replace the left-over uses of strv_append() and replace them by strv_push() or strv_extend()
* move config_parse_path_strv() out of conf-parser.c
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index f50161f..e213ec4 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -1021,10 +1021,13 @@
<varlistentry>
<term><varname>$USER</varname></term>
+ <term><varname>$LOGNAME</varname></term>
<term><varname>$HOME</varname></term>
+ <term><varname>$SHELL</varname></term>
- <listitem><para>User name and home
- directory. Set for the units which
+ <listitem><para>User name (twice), home
+ directory, and the login shell.
+ Set for the units which
have <varname>User=</varname> set,
which includes user
<command>systemd</command> instances.
@@ -1080,6 +1083,20 @@
<citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para></listitem>
</varlistentry>
+
+ <varlistentry>
+ <term><varname>$TERM</varname></term>
+
+ <listitem><para>Terminal type, set
+ only for units connected to a terminal
+ (<varname>StandardInput=tty</varname>,
+ <varname>StandardOutput=tty</varname>,
+ or
+ <varname>StandardError=tty</varname>).
+ See
+ <citerefentry><refentrytitle>termcap</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para></listitem>
+ </varlistentry>
</variablelist>
<para>Additional variables may be configured by the
diff --git a/src/core/execute.c b/src/core/execute.c
index a53ef48..3979f35 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -1094,7 +1094,7 @@ int exec_spawn(ExecCommand *command,
if (pid == 0) {
int i, err;
sigset_t ss;
- const char *username = NULL, *home = NULL;
+ const char *username = NULL, *home = NULL, *shell = NULL;
uid_t uid = (uid_t) -1;
gid_t gid = (gid_t) -1;
_cleanup_strv_free_ char **our_env = NULL, **pam_env = NULL,
@@ -1277,7 +1277,7 @@ int exec_spawn(ExecCommand *command,
if (context->user) {
username = context->user;
- err = get_user_creds(&username, &uid, &gid, &home, NULL);
+ err = get_user_creds(&username, &uid, &gid, &home, &shell);
if (err < 0) {
r = EXIT_USER;
goto fail_child;
@@ -1462,46 +1462,28 @@ int exec_spawn(ExecCommand *command,
}
}
- our_env = new0(char*, 7);
- if (!our_env) {
+ our_env = new(char*, 8);
+ if (!our_env ||
+ (n_fds > 0 && (
+ asprintf(our_env + n_env++, "LISTEN_PID=%lu", (unsigned long) getpid()) < 0 ||
+ asprintf(our_env + n_env++, "LISTEN_FDS=%u", n_fds) < 0)) ||
+ (home && asprintf(our_env + n_env++, "HOME=%s", home) < 0) ||
+ (username && (
+ asprintf(our_env + n_env++, "LOGNAME=%s", username) < 0 ||
+ asprintf(our_env + n_env++, "USER=%s", username) < 0)) ||
+ (shell && asprintf(our_env + n_env++, "SHELL=%s", shell) < 0) ||
+ ((is_terminal_input(context->std_input) ||
+ context->std_output == EXEC_OUTPUT_TTY ||
+ context->std_error == EXEC_OUTPUT_TTY) && (
+ !(our_env[n_env++] = strdup(default_term_for_tty(tty_path(context))))))) {
+
err = -ENOMEM;
r = EXIT_MEMORY;
goto fail_child;
}
- if (n_fds > 0)
- if (asprintf(our_env + n_env++, "LISTEN_PID=%lu", (unsigned long) getpid()) < 0 ||
- asprintf(our_env + n_env++, "LISTEN_FDS=%u", n_fds) < 0) {
- err = -ENOMEM;
- r = EXIT_MEMORY;
- goto fail_child;
- }
-
- if (home)
- if (asprintf(our_env + n_env++, "HOME=%s", home) < 0) {
- err = -ENOMEM;
- r = EXIT_MEMORY;
- goto fail_child;
- }
-
- if (username)
- if (asprintf(our_env + n_env++, "LOGNAME=%s", username) < 0 ||
- asprintf(our_env + n_env++, "USER=%s", username) < 0) {
- err = -ENOMEM;
- r = EXIT_MEMORY;
- goto fail_child;
- }
-
- if (is_terminal_input(context->std_input) ||
- context->std_output == EXEC_OUTPUT_TTY ||
- context->std_error == EXEC_OUTPUT_TTY)
- if (!(our_env[n_env++] = strdup(default_term_for_tty(tty_path(context))))) {
- err = -ENOMEM;
- r = EXIT_MEMORY;
- goto fail_child;
- }
-
- assert(n_env <= 7);
+ our_env[n_env++] = NULL;
+ assert(n_env <= 8);
final_env = strv_env_merge(5,
environment,
diff --git a/units/user@.service.in b/units/user@.service.in
index 3718a57..3f8b59d 100644
--- a/units/user@.service.in
+++ b/units/user@.service.in
@@ -13,7 +13,6 @@ After=systemd-user-sessions.service
User=%I
PAMName=systemd-user
Type=notify
-Environment=SHELL=%s
ExecStart=-@rootlibexecdir@/systemd --user
Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/%I/dbus/user_bus_socket
Slice=user-%i.slice