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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc | |
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Diffstat (limited to 'libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc')
-rw-r--r-- | libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc new file mode 100644 index 000000000..a44f3f457 --- /dev/null +++ b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc @@ -0,0 +1,54 @@ +// 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; +} + |