7b6d4f50c
Aitor Esteve Alvarado
2019-06-09
Subject
start-stop-daemon: change priority before dropping privileges
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Commit Diff GitHub →
debianutils/start_stop_daemon.c+9 -9
| @@ -537,6 +537,15 @@ int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv) | |
| /* User wants _us_ to make the pidfile */ | |
| write_pidfile(pidfile); | |
| } | |
| + | #if ENABLE_FEATURE_START_STOP_DAEMON_FANCY |
| + | if (opt & OPT_NICELEVEL) { |
| + | /* Set process priority (must be before OPT_c) */ |
| + | int prio = getpriority(PRIO_PROCESS, 0) + xatoi_range(opt_N, INT_MIN/2, INT_MAX/2); |
| + | if (setpriority(PRIO_PROCESS, 0, prio) < 0) { |
| + | bb_perror_msg_and_die("setpriority(%d)", prio); |
| + | } |
| + | } |
| + | #endif |
| if (opt & OPT_c) { | |
| struct bb_uidgid_t ugid; | |
| parse_chown_usergroup_or_die(&ugid, chuid); | |
| @@ -551,15 +560,6 @@ int start_stop_daemon_main(int argc UNUSED_PARAM, char **argv) | |
| setgroups(1, &ugid.gid); | |
| } | |
| } | |
| - | #if ENABLE_FEATURE_START_STOP_DAEMON_FANCY |
| - | if (opt & OPT_NICELEVEL) { |
| - | /* Set process priority */ |
| - | int prio = getpriority(PRIO_PROCESS, 0) + xatoi_range(opt_N, INT_MIN/2, INT_MAX/2); |
| - | if (setpriority(PRIO_PROCESS, 0, prio) < 0) { |
| - | bb_perror_msg_and_die("setpriority(%d)", prio); |
| - | } |
| - | } |
| - | #endif |
| /* Try: | |
| * strace -oLOG start-stop-daemon -S -x /bin/usleep -a qwerty 500000 | |
| * should exec "/bin/usleep", but argv[0] should be "qwerty": | |