- char buf[32];
- read_dev_urandom(buf, sizeof(buf));
- func(buf, sizeof(buf));
+ char buf[512];
+ FILE *fp;
+ int ret;
+ int got_dev_urandom = 0;
+
+ if (read_dev_urandom(buf, 32)) {
+ got_dev_urandom = 1;
+ func(buf, 32);
+ }
+
+ fp = popen("ps -axu 2>/dev/null", "r");
+ if (fp) {
+ while ( (ret = fread(buf, 1, sizeof(buf), fp)) > 0)
+ func(buf, ret);
+ pclose(fp);
+ } else if (!got_dev_urandom) {
+ fprintf(stderr, "popen: %s\n"
+ "Unable to access fallback entropy source\n", strerror(errno));
+ exit(1);
+ }
+
+ fp = popen("ls -al /tmp 2>/dev/null", "r");
+ if (fp) {
+ while ( (ret = fread(buf, 1, sizeof(buf), fp)) > 0)
+ func(buf, ret);
+ pclose(fp);
+ } else if (!got_dev_urandom) {
+ fprintf(stderr, "popen: %s\n"
+ "Unable to access fallback entropy source\n", strerror(errno));
+ exit(1);
+ }
+
+ read_random_seed(func);
+ random_save_seed();