| /* |
| * Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include "dlfcn.h" |
| |
| #if defined(LINUX) && (defined(_GNU_SOURCE) || \ |
| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE < 200112L \ |
| && defined(_XOPEN_SOURCE) && _XOPEN_SOURCE < 600)) |
| extern int __xpg_strerror_r(int, char *, size_t); |
| #define strerror_r(a, b, c) __xpg_strerror_r((a), (b), (c)) |
| #endif |
| |
| void* getProcessHandle() { |
| static void *procHandle = NULL; |
| if (procHandle != NULL) { |
| return procHandle; |
| } |
| #ifdef __APPLE__ |
| procHandle = (void*)dlopen(NULL, RTLD_FIRST); |
| #else |
| procHandle = (void*)dlopen(NULL, RTLD_LAZY); |
| #endif |
| return procHandle; |
| } |
| |
| void buildJniFunctionName(const char *sym, const char *cname, |
| char *jniEntryName) { |
| strcpy(jniEntryName, sym); |
| if (cname != NULL) { |
| strcat(jniEntryName, "_"); |
| strcat(jniEntryName, cname); |
| } |
| } |
| |
| size_t |
| getLastErrorString(char *buf, size_t len) |
| { |
| if (errno == 0 || len < 1) return 0; |
| getErrorString(errno, buf, len); |
| return strlen(buf); |
| } |
| |
| int |
| getErrorString(int err, char *buf, size_t len) |
| { |
| if (err == 0 || len < 1) return 0; |
| return strerror_r(err, buf, len); |
| } |