1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
|
/* ps.cc
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2008, 2009, 2010, 2011 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <errno.h>
#include <stdio.h>
#include <locale.h>
#include <wchar.h>
#include <windows.h>
#include <time.h>
#include <getopt.h>
#include <unistd.h>
#include <stdlib.h>
#include <pwd.h>
#include <limits.h>
#include <sys/cygwin.h>
#include <cygwin/version.h>
#include <ddk/ntapi.h>
#include <ddk/winddk.h>
#include "loadlib.h"
/* Maximum possible path length under NT. There's no official define
for that value. Note that PATH_MAX is only 4K. */
#define NT_MAX_PATH 32768
static char *prog_name;
static struct option longopts[] =
{
{"all", no_argument, NULL, 'a' },
{"everyone", no_argument, NULL, 'e' },
{"full", no_argument, NULL, 'f' },
{"help", no_argument, NULL, 'h' },
{"long", no_argument, NULL, 'l' },
{"process", required_argument, NULL, 'p'},
{"summary", no_argument, NULL, 's' },
{"user", required_argument, NULL, 'u'},
{"version", no_argument, NULL, 'V'},
{"windows", no_argument, NULL, 'W'},
{NULL, 0, NULL, 0}
};
static char opts[] = "aefhlp:su:VW";
static char *
start_time (external_pinfo *child)
{
time_t st = child->start_time;
time_t t = time (NULL);
static char stime[40] = {'\0'};
char now[40];
strncpy (stime, ctime (&st) + 4, 15);
strcpy (now, ctime (&t) + 4);
if ((t - st) < (24 * 3600))
return (stime + 7);
stime[6] = '\0';
return stime;
}
#define FACTOR (0x19db1ded53ea710LL)
#define NSPERSEC 10000000LL
/* Convert a Win32 time to "UNIX" format. */
long __stdcall
to_time_t (FILETIME *ptr)
{
/* A file time is the number of 100ns since jan 1 1601
stuffed into two long words.
A time_t is the number of seconds since jan 1 1970. */
long rem;
long long x = ((long long) ptr->dwHighDateTime << 32) + ((unsigned)ptr->dwLowDateTime);
x -= FACTOR; /* number of 100ns between 1601 and 1970 */
rem = x % ((long long)NSPERSEC);
rem += (NSPERSEC / 2);
x /= (long long) NSPERSEC; /* number of 100ns in a second */
x += (long long) (rem / NSPERSEC);
return x;
}
static const char *
ttynam (int ntty)
{
static char buf[9];
char buf0[9];
if (ntty < 0)
strcpy (buf0, "?");
else if (ntty & 0xffff0000)
sprintf (buf0, "cons%d", ntty & 0xff);
else
sprintf (buf0, "pty%d", ntty);
sprintf (buf, " %-7s", buf0);
return buf;
}
static void
usage (FILE * stream, int status)
{
fprintf (stream, "\
Usage: %1$s [-aefls] [-u UID] [-p PID]\n\
\n\
Report process status\n\
\n\
-a, --all show processes of all users\n\
-e, --everyone show processes of all users\n\
-f, --full show process uids, ppids\n\
-h, --help output usage information and exit\n\
-l, --long show process uids, ppids, pgids, winpids\n\
-p, --process show information for specified PID\n\
-s, --summary show process summary\n\
-u, --user list processes owned by UID\n\
-V, --version output version information and exit\n\
-W, --windows show windows as well as cygwin processes\n\
\n\
With no options, %1$s outputs the long format by default\n\n",
prog_name);
exit (status);
}
static void
print_version ()
{
printf ("ps (cygwin) %d.%d.%d\n"
"Show process statistics\n"
"Copyright (C) 1996 - %s Red Hat, Inc.\n"
"This is free software; see the source for copying conditions. There is NO\n"
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",
CYGWIN_VERSION_DLL_MAJOR / 1000,
CYGWIN_VERSION_DLL_MAJOR % 1000,
CYGWIN_VERSION_DLL_MINOR,
strrchr (__DATE__, ' ') + 1);
}
char unicode_buf[sizeof (UNICODE_STRING) + NT_MAX_PATH];
int
main (int argc, char *argv[])
{
external_pinfo *p;
int aflag, lflag, fflag, sflag, uid, proc_id;
bool found_proc_id = true;
cygwin_getinfo_types query = CW_GETPINFO;
const char *dtitle = " PID TTY STIME COMMAND\n";
const char *dfmt = "%7d%4s%10s %s\n";
const char *ftitle = " UID PID PPID TTY STIME COMMAND\n";
const char *ffmt = "%8.8s%8d%8d%4s%10s %s\n";
const char *ltitle = " PID PPID PGID WINPID TTY UID STIME COMMAND\n";
const char *lfmt = "%c %7d %7d %7d %10u %4s %4u %8s %s\n";
char ch;
PUNICODE_STRING uni = (PUNICODE_STRING) unicode_buf;
void *drive_map = NULL;
aflag = lflag = fflag = sflag = 0;
uid = getuid ();
proc_id = -1;
lflag = 1;
setlocale (LC_ALL, "");
prog_name = program_invocation_short_name;
while ((ch = getopt_long (argc, argv, opts, longopts, NULL)) != EOF)
switch (ch)
{
case 'a':
case 'e':
aflag = 1;
break;
case 'f':
fflag = 1;
break;
case 'h':
usage (stdout, 0);
case 'l':
lflag = 1;
break;
case 'p':
proc_id = atoi (optarg);
aflag = 1;
found_proc_id = false;
break;
case 's':
sflag = 1;
break;
case 'u':
uid = atoi (optarg);
if (uid == 0)
{
struct passwd *pw;
if ((pw = getpwnam (optarg)))
uid = pw->pw_uid;
else
{
fprintf (stderr, "%s: user %s unknown\n", prog_name, optarg);
exit (1);
}
}
break;
case 'V':
print_version ();
exit (0);
break;
case 'W':
query = CW_GETPINFO_FULL;
aflag = 1;
break;
default:
fprintf (stderr, "Try `%s --help' for more information.\n", prog_name);
exit (1);
}
if (sflag)
printf (dtitle);
else if (fflag)
printf (ftitle);
else if (lflag)
printf (ltitle);
(void) cygwin_internal (CW_LOCK_PINFO, 1000);
if (query == CW_GETPINFO_FULL)
{
/* Enable debug privilege to allow to enumerate all processes,
not only processes in current session. */
HANDLE tok;
if (OpenProcessToken (GetCurrentProcess (),
TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES,
&tok))
{
TOKEN_PRIVILEGES priv;
priv.PrivilegeCount = 1;
if (LookupPrivilegeValue (NULL, SE_DEBUG_NAME,
&priv.Privileges[0].Luid))
{
priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges (tok, FALSE, &priv, 0, NULL, NULL);
}
}
/* Fetch an opaque drive mapping object from the Cygwin DLL.
This is used to map NT device paths to Win32 paths. */
drive_map = (void *) cygwin_internal (CW_ALLOC_DRIVE_MAP);
/* Check old Cygwin version. */
if (drive_map == (void *) -1)
drive_map = NULL;
}
for (int pid = 0;
(p = (external_pinfo *) cygwin_internal (query, pid | CW_NEXTPID));
pid = p->pid)
{
if ((proc_id > 0) && (p->pid != proc_id))
continue;
else
found_proc_id = true;
if (aflag)
/* nothing to do */;
else if (p->version >= EXTERNAL_PINFO_VERSION_32_BIT)
{
if (p->uid32 != (__uid32_t) uid)
continue;
}
else if (p->uid != uid)
continue;
char status = ' ';
if (p->process_state & PID_STOPPED)
status = 'S';
else if (p->process_state & PID_TTYIN)
status = 'I';
else if (p->process_state & PID_TTYOU)
status = 'O';
/* Maximum possible path length under NT. There's no official define
for that value. */
char pname[NT_MAX_PATH + sizeof (" <defunct>")];
if (p->ppid)
{
char *s;
pname[0] = '\0';
strncat (pname, p->progname_long, NT_MAX_PATH);
s = strchr (pname, '\0') - 4;
if (s > pname && strcasecmp (s, ".exe") == 0)
*s = '\0';
if (p->process_state & PID_EXITED || (p->exitcode & ~0xffff))
strcat (pname, " <defunct>");
}
else if (query == CW_GETPINFO_FULL && drive_map)
{
HANDLE h;
NTSTATUS status;
wchar_t *win32path = NULL;
h = OpenProcess (PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE, p->dwProcessId);
if (!h)
continue;
status = NtQueryInformationProcess (h, ProcessImageFileName, uni,
sizeof unicode_buf, NULL);
if (NT_SUCCESS (status))
{
/* NtQueryInformationProcess returns a native NT device path.
Call CW_MAP_DRIVE_MAP to convert the path to an ordinary
Win32 path. The returned pointer is a pointer into the
incoming buffer given as third argument. It's expected
to be big enough, which we made sure by defining unicode_buf
to have enough space for a maximum sized UNICODE_STRING. */
uni->Buffer[uni->Length / sizeof (WCHAR)] = L'\0';
win32path = (wchar_t *) cygwin_internal (CW_MAP_DRIVE_MAP,
drive_map, uni->Buffer);
}
if (win32path)
wcstombs (pname, win32path, sizeof pname);
else
strcpy (pname, "*** unknown ***");
FILETIME ct, et, kt, ut;
if (GetProcessTimes (h, &ct, &et, &kt, &ut))
p->start_time = to_time_t (&ct);
CloseHandle (h);
}
char uname[128];
if (fflag)
{
struct passwd *pw;
if ((pw = getpwuid (p->version >= EXTERNAL_PINFO_VERSION_32_BIT ?
p->uid32 : p->uid)))
strcpy (uname, pw->pw_name);
else
sprintf (uname, "%u", (unsigned)
(p->version >= EXTERNAL_PINFO_VERSION_32_BIT ?
p->uid32 : p->uid));
}
if (sflag)
printf (dfmt, p->pid, ttynam (p->ctty), start_time (p), pname);
else if (fflag)
printf (ffmt, uname, p->pid, p->ppid, ttynam (p->ctty), start_time (p),
pname);
else if (lflag)
printf (lfmt, status, p->pid, p->ppid, p->pgid,
p->dwProcessId, ttynam (p->ctty),
p->version >= EXTERNAL_PINFO_VERSION_32_BIT ? p->uid32 : p->uid,
start_time (p), pname);
}
if (drive_map)
cygwin_internal (CW_FREE_DRIVE_MAP, drive_map);
(void) cygwin_internal (CW_UNLOCK_PINFO);
return found_proc_id ? 0 : 1;
}
|