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crond: allow $SHELL and starting user's shell override DEFAULT_SHELL. Closes 6458

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function                                             old     new   delta
crond_main                                          1134    1149     +15
fork_job                                             453     454      +1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2017-07-22 01:47:19 +02:00
parent da2244fe48
commit c9e7843dde
1 changed files with 7 additions and 2 deletions
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9
miscutils/crond.c
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@ -153,6 +153,7 @@ struct globals {
const char *log_filename;
const char *crontab_dir_name; /* = CRONTABS; */
CronFile *cron_files;
char *default_shell;
#if SETENV_LEAKS
char *env_var_user;
char *env_var_home;
@ -700,7 +701,7 @@ fork_job(const char *user, int mailFd, CronLine *line, bool run_sendmail)
goto err;
}
shell = line->cl_shell ? line->cl_shell : DEFAULT_SHELL;
shell = line->cl_shell ? line->cl_shell : G.default_shell;
prog = run_sendmail ? SENDMAIL : shell;
set_env_vars(pas, shell);
@ -846,7 +847,7 @@ static pid_t start_one_job(const char *user, CronLine *line)
}
/* Prepare things before vfork */
shell = line->cl_shell ? line->cl_shell : DEFAULT_SHELL;
shell = line->cl_shell ? line->cl_shell : G.default_shell;
set_env_vars(pas, shell);
/* Fork as the user in question and run program */
@ -1045,6 +1046,10 @@ int crond_main(int argc UNUSED_PARAM, char **argv)
reopen_logfile_to_stderr();
xchdir(G.crontab_dir_name);
/* $SHELL, or current UID's shell, or DEFAULT_SHELL */
/* Useful on Android where DEFAULT_SHELL /bin/sh may not exist */
G.default_shell = xstrdup(get_shell_name());
log8("crond (busybox "BB_VER") started, log level %d", G.log_level);
rescan_crontab_dir();
write_pidfile(CONFIG_PID_FILE_PATH "/crond.pid");