319e20b56
Denys Vlasenko
2021-08-15
Subject
taskset: disallow "taskset -p 0"
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util-linux/taskset.c+2 -2
| @@ -218,7 +218,7 @@ static int process_pid_str(const char *pid_str, unsigned opts, char *aff) | |
| ul *mask; | |
| unsigned mask_size_in_bytes; | |
| const char *current_new; | |
| - | pid_t pid = xatoi_positive(pid_str); |
| + | pid_t pid = !pid_str ? 0 : xatou_range(pid_str, 1, INT_MAX); /* disallow "0": "taskset -p 0" should fail */ |
| mask_size_in_bytes = SZOF_UL; | |
| current_new = "current"; | |
| @@ -343,7 +343,7 @@ int taskset_main(int argc UNUSED_PARAM, char **argv) | |
| /* <aff> <cmd...> */ | |
| if (!*argv) | |
| bb_show_usage(); | |
| - | process_pid_str("0", opts, aff); |
| + | process_pid_str(NULL, opts, aff); |
| BB_EXECVP_or_die(argv); | |
| } | |