diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/bb_do_delay.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libbb/bb_do_delay.c b/libbb/bb_do_delay.c index 3a86dc2ae..3dbf032db 100644 --- a/libbb/bb_do_delay.c +++ b/libbb/bb_do_delay.c @@ -8,7 +8,7 @@ */ #include "libbb.h" -/* void FAST_FUNC bb_do_delay(int seconds) { ... } - no users yet */ +/* void FAST_FUNC bb_do_delay(unsigned seconds) { ... } - no users yet */ #ifndef LOGIN_FAIL_DELAY #define LOGIN_FAIL_DELAY 3 @@ -34,3 +34,16 @@ void FAST_FUNC sleep1(void) sleep(1); } +void FAST_FUNC msleep(unsigned ms) +{ + /* 1. usleep(n) is not guaranteed by standards to accept n >= 1000000 + * 2. multiplication in usleep(ms * 1000) can overflow if ms > 4294967 + * (sleep of ~71.5 minutes) + * Let's play safe and loop: + */ + while (ms > 500) { + usleep(500000); + ms -= 500; + } + usleep(ms * 1000); +} |