1 /*
2 * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <string.h>
27
28 #include "jni.h"
29 #include "jni_util.h"
30 #include "dlfcn.h"
31
32 void* getProcessHandle() {
33 static void *procHandle = NULL;
34 if (procHandle != NULL) {
35 return procHandle;
36 }
37 #ifdef __APPLE__
38 procHandle = (void*)dlopen(NULL, RTLD_FIRST);
39 #else
40 procHandle = (void*)dlopen(NULL, RTLD_LAZY);
41 #endif
42 return procHandle;
43 }
44
45 void buildJniFunctionName(const char *sym, const char *cname,
46 char *jniEntryName) {
47 strcpy(jniEntryName, sym);
48 if (cname != NULL) {
49 strcat(jniEntryName, "_");
50 strcat(jniEntryName, cname);
51 }
52 }
53
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1 /*
2 * Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <errno.h>
27 #include <string.h>
28
29 #include "jni.h"
30 #include "jni_util.h"
31 #include "dlfcn.h"
32
33 void* getProcessHandle() {
34 static void *procHandle = NULL;
35 if (procHandle != NULL) {
36 return procHandle;
37 }
38 #ifdef __APPLE__
39 procHandle = (void*)dlopen(NULL, RTLD_FIRST);
40 #else
41 procHandle = (void*)dlopen(NULL, RTLD_LAZY);
42 #endif
43 return procHandle;
44 }
45
46 void buildJniFunctionName(const char *sym, const char *cname,
47 char *jniEntryName) {
48 strcpy(jniEntryName, sym);
49 if (cname != NULL) {
50 strcat(jniEntryName, "_");
51 strcat(jniEntryName, cname);
52 }
53 }
54
55 size_t
56 getLastErrorString(char *buf, size_t len)
57 {
58 if (errno == 0 || len < 1) return 0;
59
60 const char *err = strerror(errno);
61 size_t n = strlen(err);
62 if (n >= len)
63 n = len - 1;
64
65 strncpy(buf, err, n);
66 buf[n] = '\0';
67 return n;
68 }
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