#include "includes.h"
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+#include <stdarg.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+
#include <openssl/rand.h>
#include <openssl/crypto.h>
+#include <openssl/err.h>
#include "ssh.h"
#include "misc.h"
#include "atomicio.h"
#include "pathnames.h"
#include "log.h"
+#include "buffer.h"
/*
* Portable OpenSSH PRNG seeding:
* XXX: we should tell the child how many bytes we need.
*/
-RCSID("$Id$");
-
#ifndef OPENSSL_PRNG_ONLY
#define RANDOM_SEED_SIZE 48
static uid_t original_uid, original_euid;
#endif
}
+#ifndef OPENSSL_PRNG_ONLY
+void
+rexec_send_rng_seed(Buffer *m)
+{
+ u_char buf[RANDOM_SEED_SIZE];
+
+ if (RAND_bytes(buf, sizeof(buf)) <= 0) {
+ error("Couldn't obtain random bytes (error %ld)",
+ ERR_get_error());
+ buffer_put_string(m, "", 0);
+ } else
+ buffer_put_string(m, buf, sizeof(buf));
+}
+
+void
+rexec_recv_rng_seed(Buffer *m)
+{
+ u_char *buf;
+ u_int len;
+
+ buf = buffer_get_string_ret(m, &len);
+ if (buf != NULL) {
+ debug3("rexec_recv_rng_seed: seeding rng with %u bytes", len);
+ RAND_add(buf, len, len);
+ }
+}
+#endif