diff options
Diffstat (limited to 'coreutils/usleep.c')
| -rw-r--r-- | coreutils/usleep.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/coreutils/usleep.c b/coreutils/usleep.c index 7c25aad..684ab78 100644 --- a/coreutils/usleep.c +++ b/coreutils/usleep.c @@ -38,6 +38,13 @@ int usleep_main(int argc UNUSED_PARAM, char **argv) bb_show_usage(); } + /* Safe wrt NOFORK? (noforks are not allowed to run for + * a long time). Try "usleep 99999999" + ^C + "echo $?" + * in hush with FEATURE_SH_NOFORK=y. + * At least on uclibc, usleep() thanslates to nanosleep() + * which returns early on any signal (even caught one), + * and uclibc does not loop back on EINTR. + */ usleep(xatou(argv[1])); return EXIT_SUCCESS; |