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authorDenis Vlasenko2006-10-03 15:57:40 +0000
committerDenis Vlasenko2006-10-03 15:57:40 +0000
commitfe54458e46eef445da32862b2171392be8f01ab4 (patch)
treef88b5ee99da5816f1628c9560cfabecb97468689 /libbb/setup_environment.c
parent7c1ed2e922e80b7a81da3e748cb975c876315bd5 (diff)
downloadbusybox-fe54458e46eef445da32862b2171392be8f01ab4.zip
busybox-fe54458e46eef445da32862b2171392be8f01ab4.tar.gz
runit/chpst: "change process state" utility
It's "nice" on steroids - can set uid/gid, mem/cpu limits etc. +3.5k
Diffstat (limited to 'libbb/setup_environment.c')
-rw-r--r--libbb/setup_environment.c47
1 files changed, 20 insertions, 27 deletions
diff --git a/libbb/setup_environment.c b/libbb/setup_environment.c
index a146496..874a58e 100644
--- a/libbb/setup_environment.c
+++ b/libbb/setup_environment.c
@@ -42,15 +42,9 @@
#define DEFAULT_LOGIN_PATH "/bin:/usr/bin"
#define DEFAULT_ROOT_LOGIN_PATH "/usr/sbin:/bin:/usr/bin:/sbin"
-static void xsetenv ( const char *key, const char *value )
+void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw)
{
- if ( setenv ( key, value, 1 ))
- bb_error_msg_and_die (bb_msg_memory_exhausted);
-}
-
-void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw )
-{
- if ( loginshell ) {
+ if (loginshell) {
const char *term;
/* Change the current working directory to be the home directory
@@ -59,32 +53,31 @@ void setup_environment ( const char *shell, int loginshell, int changeenv, const
* directory.
* Some systems default to HOME=/
*/
- if ( chdir ( pw-> pw_dir )) {
- xchdir ( "/" );
- fputs ( "warning: cannot change to home directory\n", stderr );
+ if (chdir(pw->pw_dir)) {
+ xchdir("/");
+ fputs("warning: cannot change to home directory\n", stderr);
}
/* Leave TERM unchanged. Set HOME, SHELL, USER, LOGNAME, PATH.
Unset all other environment variables. */
- term = getenv ("TERM");
- clearenv ( );
- if ( term )
- xsetenv ( "TERM", term );
- xsetenv ( "HOME", pw-> pw_dir );
- xsetenv ( "SHELL", shell );
- xsetenv ( "USER", pw-> pw_name );
- xsetenv ( "LOGNAME", pw-> pw_name );
- xsetenv ( "PATH", ( pw-> pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH ));
+ term = getenv("TERM");
+ clearenv();
+ if (term)
+ xsetenv("TERM", term);
+ xsetenv("HOME", pw->pw_dir);
+ xsetenv("SHELL", shell);
+ xsetenv("USER", pw->pw_name);
+ xsetenv("LOGNAME", pw->pw_name);
+ xsetenv("PATH", (pw->pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH));
}
- else if ( changeenv ) {
+ else if (changeenv) {
/* Set HOME, SHELL, and if not becoming a super-user,
USER and LOGNAME. */
- xsetenv ( "HOME", pw-> pw_dir );
- xsetenv ( "SHELL", shell );
- if ( pw-> pw_uid ) {
- xsetenv ( "USER", pw-> pw_name );
- xsetenv ( "LOGNAME", pw-> pw_name );
+ xsetenv("HOME", pw->pw_dir);
+ xsetenv("SHELL", shell);
+ if (pw->pw_uid) {
+ xsetenv("USER", pw->pw_name);
+ xsetenv("LOGNAME", pw->pw_name);
}
}
}
-