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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [gnu/] [java/] [security/] [jce/] [prng/] [natVMSecureRandomPosix.cc] - Rev 756
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// natVMSecureRandomPosix.cc - Native part of VMSecureRandom class for POSIX. /* Copyright (C) 2009 Free Software Foundation This file is part of libgcj. This software is copyrighted work licensed under the terms of the Libgcj License. Please consult the file "LIBGCJ_LICENSE" for details. */ #include <config.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <gcj/cni.h> #include <java/lang/InternalError.h> #include <gnu/java/security/jce/prng/VMSecureRandom.h> jint gnu::java::security::jce::prng::VMSecureRandom::natGenerateSeed(jbyteArray byte_array, jint offset, jint length) { int a, fd; jbyte *bytes = elements (byte_array); ssize_t count; for (a = 0; a < offset; ++a) bytes++; fd = open ("/dev/random", O_RDONLY); if (fd == -1) { jstring oserr = JvNewStringLatin1 (strerror (errno)); throw new ::java::lang::InternalError (JvNewStringLatin1 ("Error opening /dev/random: ")->concat(oserr)); } count = read (fd, bytes, length); close (fd); if (count == -1) { jstring oserr = JvNewStringLatin1 (strerror (errno)); throw new ::java::lang::InternalError (JvNewStringLatin1 ("Error reading /dev/random: ")->concat(oserr)); } return count; }