diff options
Diffstat (limited to 'networking/udhcp')
| -rw-r--r-- | networking/udhcp/clientpacket.c | 16 | ||||
| -rw-r--r-- | networking/udhcp/dhcpc.h | 2 |
2 files changed, 6 insertions, 12 deletions
diff --git a/networking/udhcp/clientpacket.c b/networking/udhcp/clientpacket.c index 69d7f2d38..af97962a0 100644 --- a/networking/udhcp/clientpacket.c +++ b/networking/udhcp/clientpacket.c @@ -25,19 +25,13 @@ /* Create a random xid */ -unsigned long random_xid(void) +unsigned random_xid(void) { - static int initialized; + static smallint initialized; + if (!initialized) { - unsigned long seed; - - if (open_read_close("/dev/urandom", &seed, sizeof(seed)) < 0) { - bb_info_msg("Cannot load seed " - "from /dev/urandom: %s", strerror(errno)); - seed = time(0); - } - srand(seed); - initialized++; + srand(monotonic_us()); + initialized = 1; } return rand(); } diff --git a/networking/udhcp/dhcpc.h b/networking/udhcp/dhcpc.h index 4ddd12120..fa091bf72 100644 --- a/networking/udhcp/dhcpc.h +++ b/networking/udhcp/dhcpc.h @@ -38,7 +38,7 @@ extern struct client_config_t client_config; /*** clientpacket.h ***/ -unsigned long random_xid(void); +unsigned random_xid(void); int send_discover(unsigned long xid, unsigned long requested); int send_selecting(unsigned long xid, unsigned long server, unsigned long requested); int send_renew(unsigned long xid, unsigned long server, unsigned long ciaddr); |