1 | /* $Id: rtProcInitExePath-linux.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * IPRT - rtProcInitName, Linux.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2006-2019 Oracle Corporation
|
---|
8 | *
|
---|
9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
---|
10 | * available from http://www.virtualbox.org. This file is free software;
|
---|
11 | * you can redistribute it and/or modify it under the terms of the GNU
|
---|
12 | * General Public License (GPL) as published by the Free Software
|
---|
13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
---|
14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
---|
15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
---|
16 | *
|
---|
17 | * The contents of this file may alternatively be used under the terms
|
---|
18 | * of the Common Development and Distribution License Version 1.0
|
---|
19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
---|
20 | * VirtualBox OSE distribution, in which case the provisions of the
|
---|
21 | * CDDL are applicable instead of those of the GPL.
|
---|
22 | *
|
---|
23 | * You may elect to license modified versions of this file under the
|
---|
24 | * terms and conditions of either the GPL or the CDDL or both.
|
---|
25 | */
|
---|
26 |
|
---|
27 |
|
---|
28 | /*********************************************************************************************************************************
|
---|
29 | * Header Files *
|
---|
30 | *********************************************************************************************************************************/
|
---|
31 | #define LOG_GROUP RTLOGGROUP_PROCESS
|
---|
32 | #include <unistd.h>
|
---|
33 | #include <errno.h>
|
---|
34 |
|
---|
35 | #include <iprt/string.h>
|
---|
36 | #include <iprt/assert.h>
|
---|
37 | #include <iprt/errcore.h>
|
---|
38 | #include <iprt/path.h>
|
---|
39 | #include "internal/process.h"
|
---|
40 | #include "internal/path.h"
|
---|
41 |
|
---|
42 |
|
---|
43 | DECLHIDDEN(int) rtProcInitExePath(char *pszPath, size_t cchPath)
|
---|
44 | {
|
---|
45 | /*
|
---|
46 | * Read the /proc/self/exe link, convert to native and return it.
|
---|
47 | */
|
---|
48 | int cchLink = readlink("/proc/self/exe", pszPath, cchPath - 1);
|
---|
49 | if (cchLink > 0 && (size_t)cchLink <= cchPath - 1)
|
---|
50 | {
|
---|
51 | pszPath[cchLink] = '\0';
|
---|
52 |
|
---|
53 | char const *pszTmp;
|
---|
54 | int rc = rtPathFromNative(&pszTmp, pszPath, NULL);
|
---|
55 | AssertMsgRCReturn(rc, ("rc=%Rrc pszLink=\"%s\"\nhex: %.*Rhxs\n", rc, pszPath, cchLink, pszPath), rc);
|
---|
56 | if (pszTmp != pszPath)
|
---|
57 | {
|
---|
58 | rc = RTStrCopy(pszPath, cchPath, pszTmp);
|
---|
59 | rtPathFreeIprt(pszTmp, pszPath);
|
---|
60 | }
|
---|
61 | return rc;
|
---|
62 | }
|
---|
63 |
|
---|
64 | int err = errno;
|
---|
65 | int rc = RTErrConvertFromErrno(err);
|
---|
66 | AssertMsgFailed(("rc=%Rrc err=%d cchLink=%d\n", rc, err, cchLink));
|
---|
67 | return rc;
|
---|
68 | }
|
---|
69 |
|
---|