X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fuuid.c;h=df1206e1c80a9af45745c5ef3edabe4f5c6ef003;hb=28c5588e8e1a8d091c5d2275232c35f2968a97fa;hp=315c851c271663351166e61a7c444b57557b2bfe;hpb=834d6cafe4797861b7547966b4dcc95b374331be;p=sliver-openvswitch.git diff --git a/lib/uuid.c b/lib/uuid.c index 315c851c2..df1206e1c 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -205,6 +205,12 @@ error: return false; } +static void +sha1_update_int(struct sha1_ctx *sha1_ctx, uintmax_t x) +{ + sha1_update(sha1_ctx, &x, sizeof x); +} + static void do_init(void) { @@ -212,25 +218,21 @@ do_init(void) struct sha1_ctx sha1_ctx; uint8_t random_seed[16]; struct timeval now; - pid_t pid, ppid; - uid_t uid; - gid_t gid; /* Get seed data. */ get_entropy_or_die(random_seed, sizeof random_seed); xgettimeofday(&now); - pid = getpid(); - ppid = getppid(); - uid = getuid(); - gid = getgid(); /* Convert seed into key. */ sha1_init(&sha1_ctx); sha1_update(&sha1_ctx, random_seed, sizeof random_seed); - sha1_update(&sha1_ctx, &pid, sizeof pid); - sha1_update(&sha1_ctx, &ppid, sizeof ppid); - sha1_update(&sha1_ctx, &uid, sizeof uid); - sha1_update(&sha1_ctx, &gid, sizeof gid); + sha1_update(&sha1_ctx, &now, sizeof now); + sha1_update_int(&sha1_ctx, getpid()); +#ifndef _WIN32 + sha1_update_int(&sha1_ctx, getppid()); + sha1_update_int(&sha1_ctx, getuid()); + sha1_update_int(&sha1_ctx, getgid()); +#endif sha1_final(&sha1_ctx, sha1); /* Generate key. */