1 /**************************************************************************
2 *
3 * Copyright 2013 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29 #include "pipe/p_config.h"
30 #include "os/os_process.h"
31 #include "util/u_memory.h"
32 #include "util/u_process.h"
33
34 #if defined(PIPE_OS_WINDOWS)
35 # include <windows.h>
36 #elif defined(PIPE_OS_HAIKU)
37 # include <kernel/OS.h>
38 # include <kernel/image.h>
39 #endif
40
41 #if defined(PIPE_OS_LINUX)
42 # include <fcntl.h>
43 #endif
44
45
46 /**
47 * Return the name of the current process.
48 * \param procname returns the process name
49 * \param size size of the procname buffer
50 * \return TRUE or FALSE for success, failure
51 */
52 boolean
os_get_process_name(char * procname,size_t size)53 os_get_process_name(char *procname, size_t size)
54 {
55 const char *name;
56
57 /* First, check if the GALLIUM_PROCESS_NAME env var is set to
58 * override the normal process name query.
59 */
60 name = os_get_option("GALLIUM_PROCESS_NAME");
61
62 if (!name) {
63 /* do normal query */
64
65 #if defined(PIPE_OS_WINDOWS)
66 char szProcessPath[MAX_PATH];
67 char *lpProcessName;
68 char *lpProcessExt;
69
70 GetModuleFileNameA(NULL, szProcessPath, ARRAY_SIZE(szProcessPath));
71
72 lpProcessName = strrchr(szProcessPath, '\\');
73 lpProcessName = lpProcessName ? lpProcessName + 1 : szProcessPath;
74
75 lpProcessExt = strrchr(lpProcessName, '.');
76 if (lpProcessExt) {
77 *lpProcessExt = '\0';
78 }
79
80 name = lpProcessName;
81
82 #elif defined(PIPE_OS_HAIKU)
83 image_info info;
84 get_image_info(B_CURRENT_TEAM, &info);
85 name = info.name;
86 #else
87 name = util_get_process_name();
88 #endif
89 }
90
91 assert(size > 0);
92 assert(procname);
93
94 if (name && procname && size > 0) {
95 strncpy(procname, name, size);
96 procname[size - 1] = '\0';
97 return TRUE;
98 }
99 else {
100 return FALSE;
101 }
102 }
103
104
105 /**
106 * Return the command line for the calling process. This is basically
107 * the argv[] array with the arguments separated by spaces.
108 * \param cmdline returns the command line string
109 * \param size size of the cmdline buffer
110 * \return TRUE or FALSE for success, failure
111 */
112 boolean
os_get_command_line(char * cmdline,size_t size)113 os_get_command_line(char *cmdline, size_t size)
114 {
115 #if defined(PIPE_OS_WINDOWS)
116 const char *args = GetCommandLineA();
117 if (args) {
118 strncpy(cmdline, args, size);
119 // make sure we terminate the string
120 cmdline[size - 1] = 0;
121 return TRUE;
122 }
123 #elif defined(PIPE_OS_LINUX)
124 int f = open("/proc/self/cmdline", O_RDONLY);
125 if (f != -1) {
126 const int n = read(f, cmdline, size - 1);
127 int i;
128 assert(n < size);
129 // The arguments are separated by '\0' chars. Convert them to spaces.
130 for (i = 0; i < n; i++) {
131 if (cmdline[i] == 0) {
132 cmdline[i] = ' ';
133 }
134 }
135 // terminate the string
136 cmdline[n] = 0;
137 close(f);
138 return TRUE;
139 }
140 #endif
141
142 /* XXX to-do: implement this function for other operating systems */
143
144 cmdline[0] = 0;
145 return FALSE;
146 }
147