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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2020-11-29 14:24:14 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2020-11-29 14:24:14 +0100 |
| commit | eb773054e47a30c78a82ed80ad4da7abe9bfb09b (patch) | |
| tree | 839f7ed43525db03f95012cbba2ee3d576cb3a3e | |
| parent | 6a55b4e403979ba299261816a7ec1bb55bbf3f2b (diff) | |
| download | busybox-eb773054e47a30c78a82ed80ad4da7abe9bfb09b.tar.gz | |
libbb: code shrink
function old new delta
generate_uuid 124 103 -21
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | libbb/xfuncs_printf.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/libbb/xfuncs_printf.c b/libbb/xfuncs_printf.c index f1cf7aeed..fcc798662 100644 --- a/libbb/xfuncs_printf.c +++ b/libbb/xfuncs_printf.c @@ -633,14 +633,11 @@ void FAST_FUNC generate_uuid(uint8_t *buf) pid_t pid; int i; - i = open("/dev/urandom", O_RDONLY); - if (i >= 0) { - read(i, buf, 16); - close(i); - } + open_read_close("/dev/urandom", buf, 16); /* Paranoia. /dev/urandom may be missing. * rand() is guaranteed to generate at least [0, 2^15) range, - * but lowest bits in some libc are not so "random". */ + * but lowest bits in some libc are not so "random". + */ srand(monotonic_us()); /* pulls in printf */ pid = getpid(); while (1) { |