2 * winutils.c: miscellaneous Windows utilities for GUI apps
13 /* Definitions to allow this module to be compiled standalone for testing
14 * split_into_argv(). */
15 #define smalloc malloc
16 #define srealloc realloc
21 * GetOpenFileName/GetSaveFileName tend to muck around with the process'
22 * working directory on at least some versions of Windows.
23 * Here's a wrapper that gives more control over this, and hides a little
24 * bit of other grottiness.
32 * `of' is expected to be initialised with most interesting fields, but
33 * this function does some administrivia. (assume `of' was memset to 0)
34 * save==1 -> GetSaveFileName; save==0 -> GetOpenFileName
35 * `state' is optional.
37 BOOL request_file(filereq *state, OPENFILENAME *of, int preserve, int save)
39 TCHAR cwd[MAX_PATH]; /* process CWD */
44 DWORD r = GetCurrentDirectory(lenof(cwd), cwd);
45 if (r == 0 || r >= lenof(cwd))
46 /* Didn't work, oh well. Stop trying to be clever. */
50 /* Open the file requester, maybe setting lpstrInitialDir */
52 #ifdef OPENFILENAME_SIZE_VERSION_400
53 of->lStructSize = OPENFILENAME_SIZE_VERSION_400;
55 of->lStructSize = sizeof(*of);
57 of->lpstrInitialDir = (state && state->cwd[0]) ? state->cwd : NULL;
58 /* Actually put up the requester. */
59 ret = save ? GetSaveFileName(of) : GetOpenFileName(of);
62 /* Get CWD left by requester */
64 DWORD r = GetCurrentDirectory(lenof(state->cwd), state->cwd);
65 if (r == 0 || r >= lenof(state->cwd))
66 /* Didn't work, oh well. */
70 /* Restore process CWD */
72 /* If it fails, there's not much we can do. */
73 (void) SetCurrentDirectory(cwd);
78 filereq *filereq_new(void)
80 filereq *ret = snew(filereq);
85 void filereq_free(filereq *state)
91 * Message box with optional context help.
94 /* Callback function to launch context help. */
95 static VOID CALLBACK message_box_help_callback(LPHELPINFO lpHelpInfo)
97 const char *context = NULL;
98 #define CHECK_CTX(name) \
100 if (lpHelpInfo->dwContextId == WINHELP_CTXID_ ## name) \
101 context = WINHELP_CTX_ ## name; \
103 CHECK_CTX(errors_hostkey_absent);
104 CHECK_CTX(errors_hostkey_changed);
105 CHECK_CTX(errors_cantloadkey);
106 CHECK_CTX(option_cleanup);
107 CHECK_CTX(pgp_fingerprints);
110 launch_help(hwnd, context);
113 int message_box(LPCTSTR text, LPCTSTR caption, DWORD style, DWORD helpctxid)
118 * We use MessageBoxIndirect() because it allows us to specify a
119 * callback function for the Help button.
121 mbox.cbSize = sizeof(mbox);
122 /* Assumes the globals `hinst' and `hwnd' have sensible values. */
123 mbox.hInstance = hinst;
124 mbox.hwndOwner = hwnd;
125 mbox.lpfnMsgBoxCallback = &message_box_help_callback;
126 mbox.dwLanguageId = LANG_NEUTRAL;
127 mbox.lpszText = text;
128 mbox.lpszCaption = caption;
129 mbox.dwContextHelpId = helpctxid;
130 mbox.dwStyle = style;
131 if (helpctxid != 0 && has_help()) mbox.dwStyle |= MB_HELP;
132 return MessageBoxIndirect(&mbox);
136 * Display the fingerprints of the PGP Master Keys to the user.
138 void pgp_fingerprints(void)
140 message_box("These are the fingerprints of the PuTTY PGP Master Keys. They can\n"
141 "be used to establish a trust path from this executable to another\n"
142 "one. See the manual for more information.\n"
143 "(Note: these fingerprints have nothing to do with SSH!)\n"
145 "PuTTY Master Key as of 2015 (RSA, 4096-bit):\n"
146 " " PGP_MASTER_KEY_FP "\n\n"
147 "Original PuTTY Master Key (RSA, 1024-bit):\n"
148 " " PGP_RSA_MASTER_KEY_FP "\n"
149 "Original PuTTY Master Key (DSA, 1024-bit):\n"
150 " " PGP_DSA_MASTER_KEY_FP,
151 "PGP fingerprints", MB_ICONINFORMATION | MB_OK,
152 HELPCTXID(pgp_fingerprints));
156 * Handy wrapper around GetDlgItemText which doesn't make you invent
157 * an arbitrary length limit on the output string. Returned string is
158 * dynamically allocated; caller must free.
160 char *GetDlgItemText_alloc(HWND hwnd, int id)
166 size = size * 4 / 3 + 512;
167 ret = sresize(ret, size, char);
168 GetDlgItemText(hwnd, id, ret, size);
169 } while (!memchr(ret, '\0', size-1));
175 * Split a complete command line into argc/argv, attempting to do it
176 * exactly the same way the Visual Studio C library would do it (so
177 * that our console utilities, which receive argc and argv already
178 * broken apart by the C library, will have their command lines
179 * processed in the same way as the GUI utilities which get a whole
180 * command line and must call this function).
182 * Does not modify the input command line.
184 * The final parameter (argstart) is used to return a second array
185 * of char * pointers, the same length as argv, each one pointing
186 * at the start of the corresponding element of argv in the
187 * original command line. So if you get half way through processing
188 * your command line in argc/argv form and then decide you want to
189 * treat the rest as a raw string, you can. If you don't want to,
190 * `argstart' can be safely left NULL.
192 void split_into_argv(char *cmdline, int *argc, char ***argv,
196 char *outputline, *q;
197 char **outputargv, **outputargstart;
201 * These argument-breaking rules apply to Visual Studio 7, which
202 * is currently the compiler expected to be used for PuTTY. Visual
203 * Studio 10 has different rules, lacking the curious mod 3
204 * behaviour of consecutive quotes described below; I presume they
205 * fixed a bug. As and when we migrate to a newer compiler, we'll
206 * have to adjust this to match; however, for the moment we
207 * faithfully imitate in our GUI utilities what our CLI utilities
208 * can't be prevented from doing.
210 * When I investigated this, at first glance the rules appeared to
213 * - Single quotes are not special characters.
215 * - Double quotes are removed, but within them spaces cease
218 * - Backslashes are _only_ special when a sequence of them
219 * appear just before a double quote. In this situation,
220 * they are treated like C backslashes: so \" just gives a
221 * literal quote, \\" gives a literal backslash and then
222 * opens or closes a double-quoted segment, \\\" gives a
223 * literal backslash and then a literal quote, \\\\" gives
224 * two literal backslashes and then opens/closes a
225 * double-quoted segment, and so forth. Note that this
226 * behaviour is identical inside and outside double quotes.
228 * - Two successive double quotes become one literal double
229 * quote, but only _inside_ a double-quoted segment.
230 * Outside, they just form an empty double-quoted segment
231 * (which may cause an empty argument word).
233 * - That only leaves the interesting question of what happens
234 * when one or more backslashes precedes two or more double
235 * quotes, starting inside a double-quoted string. And the
236 * answer to that appears somewhat bizarre. Here I tabulate
237 * number of backslashes (across the top) against number of
238 * quotes (down the left), and indicate how many backslashes
239 * are output, how many quotes are output, and whether a
240 * quoted segment is open at the end of the sequence:
246 * 0 0,0,y | 1,0,y 2,0,y 3,0,y 4,0,y
247 * --------+-----------------------------
248 * 1 0,0,n | 0,1,y 1,0,n 1,1,y 2,0,n
249 * q 2 0,1,n | 0,1,n 1,1,n 1,1,n 2,1,n
250 * u 3 0,1,y | 0,2,n 1,1,y 1,2,n 2,1,y
251 * o 4 0,1,n | 0,2,y 1,1,n 1,2,y 2,1,n
252 * t 5 0,2,n | 0,2,n 1,2,n 1,2,n 2,2,n
253 * e 6 0,2,y | 0,3,n 1,2,y 1,3,n 2,2,y
254 * s 7 0,2,n | 0,3,y 1,2,n 1,3,y 2,2,n
255 * 8 0,3,n | 0,3,n 1,3,n 1,3,n 2,3,n
256 * 9 0,3,y | 0,4,n 1,3,y 1,4,n 2,3,y
257 * 10 0,3,n | 0,4,y 1,3,n 1,4,y 2,3,n
258 * 11 0,4,n | 0,4,n 1,4,n 1,4,n 2,4,n
261 * [Test fragment was of the form "a\\\"""b c" d.]
263 * There is very weird mod-3 behaviour going on here in the
264 * number of quotes, and it even applies when there aren't any
265 * backslashes! How ghastly.
267 * With a bit of thought, this extremely odd diagram suddenly
268 * coalesced itself into a coherent, if still ghastly, model of
271 * - As before, backslashes are only special when one or more
272 * of them appear contiguously before at least one double
273 * quote. In this situation the backslashes do exactly what
274 * you'd expect: each one quotes the next thing in front of
275 * it, so you end up with n/2 literal backslashes (if n is
276 * even) or (n-1)/2 literal backslashes and a literal quote
277 * (if n is odd). In the latter case the double quote
278 * character right after the backslashes is used up.
280 * - After that, any remaining double quotes are processed. A
281 * string of contiguous unescaped double quotes has a mod-3
284 * * inside a quoted segment, a quote ends the segment.
285 * * _immediately_ after ending a quoted segment, a quote
286 * simply produces a literal quote.
287 * * otherwise, outside a quoted segment, a quote begins a
290 * So, for example, if we started inside a quoted segment
291 * then two contiguous quotes would close the segment and
292 * produce a literal quote; three would close the segment,
293 * produce a literal quote, and open a new segment. If we
294 * started outside a quoted segment, then two contiguous
295 * quotes would open and then close a segment, producing no
296 * output (but potentially creating a zero-length argument);
297 * but three quotes would open and close a segment and then
298 * produce a literal quote.
302 * First deal with the simplest of all special cases: if there
303 * aren't any arguments, return 0,NULL,NULL.
305 while (*cmdline && isspace(*cmdline)) cmdline++;
308 if (argv) *argv = NULL;
309 if (argstart) *argstart = NULL;
314 * This will guaranteeably be big enough; we can realloc it
317 outputline = snewn(1+strlen(cmdline), char);
318 outputargv = snewn(strlen(cmdline)+1 / 2, char *);
319 outputargstart = snewn(strlen(cmdline)+1 / 2, char *);
321 p = cmdline; q = outputline; outputargc = 0;
326 /* Skip whitespace searching for start of argument. */
327 while (*p && isspace(*p)) p++;
330 /* We have an argument; start it. */
331 outputargv[outputargc] = q;
332 outputargstart[outputargc] = p;
336 /* Copy data into the argument until it's finished. */
338 if (!quote && isspace(*p))
339 break; /* argument is finished */
341 if (*p == '"' || *p == '\\') {
343 * We have a sequence of zero or more backslashes
344 * followed by a sequence of zero or more quotes.
345 * Count up how many of each, and then deal with
346 * them as appropriate.
348 int i, slashes = 0, quotes = 0;
349 while (*p == '\\') slashes++, p++;
350 while (*p == '"') quotes++, p++;
354 * Special case: if there are no quotes,
355 * slashes are not special at all, so just copy
356 * n slashes to the output string.
358 while (slashes--) *q++ = '\\';
360 /* Slashes annihilate in pairs. */
361 while (slashes >= 2) slashes -= 2, *q++ = '\\';
363 /* One remaining slash takes out the first quote. */
364 if (slashes) quotes--, *q++ = '"';
367 /* Outside a quote segment, a quote starts one. */
368 if (!quote) quotes--, quote = 1;
370 /* Now we produce (n+1)/3 literal quotes... */
371 for (i = 3; i <= quotes+1; i += 3) *q++ = '"';
373 /* ... and end in a quote segment iff 3 divides n. */
374 quote = (quotes % 3 == 0);
382 /* At the end of an argument, just append a trailing NUL. */
386 outputargv = sresize(outputargv, outputargc, char *);
387 outputargstart = sresize(outputargstart, outputargc, char *);
389 if (argc) *argc = outputargc;
390 if (argv) *argv = outputargv; else sfree(outputargv);
391 if (argstart) *argstart = outputargstart; else sfree(outputargstart);
396 const struct argv_test {
398 const char *argv[10];
401 * We generate this set of tests by invoking ourself with
404 {"ab c\" d", {"ab", "c d", NULL}},
405 {"a\"b c\" d", {"ab c", "d", NULL}},
406 {"a\"\"b c\" d", {"ab", "c d", NULL}},
407 {"a\"\"\"b c\" d", {"a\"b", "c d", NULL}},
408 {"a\"\"\"\"b c\" d", {"a\"b c", "d", NULL}},
409 {"a\"\"\"\"\"b c\" d", {"a\"b", "c d", NULL}},
410 {"a\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
411 {"a\"\"\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}},
412 {"a\"\"\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
413 {"a\\b c\" d", {"a\\b", "c d", NULL}},
414 {"a\\\"b c\" d", {"a\"b", "c d", NULL}},
415 {"a\\\"\"b c\" d", {"a\"b c", "d", NULL}},
416 {"a\\\"\"\"b c\" d", {"a\"b", "c d", NULL}},
417 {"a\\\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
418 {"a\\\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}},
419 {"a\\\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
420 {"a\\\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}},
421 {"a\\\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b c", "d", NULL}},
422 {"a\\\\b c\" d", {"a\\\\b", "c d", NULL}},
423 {"a\\\\\"b c\" d", {"a\\b c", "d", NULL}},
424 {"a\\\\\"\"b c\" d", {"a\\b", "c d", NULL}},
425 {"a\\\\\"\"\"b c\" d", {"a\\\"b", "c d", NULL}},
426 {"a\\\\\"\"\"\"b c\" d", {"a\\\"b c", "d", NULL}},
427 {"a\\\\\"\"\"\"\"b c\" d", {"a\\\"b", "c d", NULL}},
428 {"a\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
429 {"a\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}},
430 {"a\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
431 {"a\\\\\\b c\" d", {"a\\\\\\b", "c d", NULL}},
432 {"a\\\\\\\"b c\" d", {"a\\\"b", "c d", NULL}},
433 {"a\\\\\\\"\"b c\" d", {"a\\\"b c", "d", NULL}},
434 {"a\\\\\\\"\"\"b c\" d", {"a\\\"b", "c d", NULL}},
435 {"a\\\\\\\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
436 {"a\\\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}},
437 {"a\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
438 {"a\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}},
439 {"a\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b c", "d", NULL}},
440 {"a\\\\\\\\b c\" d", {"a\\\\\\\\b", "c d", NULL}},
441 {"a\\\\\\\\\"b c\" d", {"a\\\\b c", "d", NULL}},
442 {"a\\\\\\\\\"\"b c\" d", {"a\\\\b", "c d", NULL}},
443 {"a\\\\\\\\\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}},
444 {"a\\\\\\\\\"\"\"\"b c\" d", {"a\\\\\"b c", "d", NULL}},
445 {"a\\\\\\\\\"\"\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}},
446 {"a\\\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}},
447 {"a\\\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b c", "d", NULL}},
448 {"a\\\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}},
449 {"\"ab c\" d", {"ab c", "d", NULL}},
450 {"\"a\"b c\" d", {"ab", "c d", NULL}},
451 {"\"a\"\"b c\" d", {"a\"b", "c d", NULL}},
452 {"\"a\"\"\"b c\" d", {"a\"b c", "d", NULL}},
453 {"\"a\"\"\"\"b c\" d", {"a\"b", "c d", NULL}},
454 {"\"a\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
455 {"\"a\"\"\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}},
456 {"\"a\"\"\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
457 {"\"a\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}},
458 {"\"a\\b c\" d", {"a\\b c", "d", NULL}},
459 {"\"a\\\"b c\" d", {"a\"b c", "d", NULL}},
460 {"\"a\\\"\"b c\" d", {"a\"b", "c d", NULL}},
461 {"\"a\\\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
462 {"\"a\\\"\"\"\"b c\" d", {"a\"\"b c", "d", NULL}},
463 {"\"a\\\"\"\"\"\"b c\" d", {"a\"\"b", "c d", NULL}},
464 {"\"a\\\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}},
465 {"\"a\\\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b c", "d", NULL}},
466 {"\"a\\\"\"\"\"\"\"\"\"b c\" d", {"a\"\"\"b", "c d", NULL}},
467 {"\"a\\\\b c\" d", {"a\\\\b c", "d", NULL}},
468 {"\"a\\\\\"b c\" d", {"a\\b", "c d", NULL}},
469 {"\"a\\\\\"\"b c\" d", {"a\\\"b", "c d", NULL}},
470 {"\"a\\\\\"\"\"b c\" d", {"a\\\"b c", "d", NULL}},
471 {"\"a\\\\\"\"\"\"b c\" d", {"a\\\"b", "c d", NULL}},
472 {"\"a\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
473 {"\"a\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}},
474 {"\"a\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
475 {"\"a\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}},
476 {"\"a\\\\\\b c\" d", {"a\\\\\\b c", "d", NULL}},
477 {"\"a\\\\\\\"b c\" d", {"a\\\"b c", "d", NULL}},
478 {"\"a\\\\\\\"\"b c\" d", {"a\\\"b", "c d", NULL}},
479 {"\"a\\\\\\\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
480 {"\"a\\\\\\\"\"\"\"b c\" d", {"a\\\"\"b c", "d", NULL}},
481 {"\"a\\\\\\\"\"\"\"\"b c\" d", {"a\\\"\"b", "c d", NULL}},
482 {"\"a\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}},
483 {"\"a\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b c", "d", NULL}},
484 {"\"a\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\"\"\"b", "c d", NULL}},
485 {"\"a\\\\\\\\b c\" d", {"a\\\\\\\\b c", "d", NULL}},
486 {"\"a\\\\\\\\\"b c\" d", {"a\\\\b", "c d", NULL}},
487 {"\"a\\\\\\\\\"\"b c\" d", {"a\\\\\"b", "c d", NULL}},
488 {"\"a\\\\\\\\\"\"\"b c\" d", {"a\\\\\"b c", "d", NULL}},
489 {"\"a\\\\\\\\\"\"\"\"b c\" d", {"a\\\\\"b", "c d", NULL}},
490 {"\"a\\\\\\\\\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}},
491 {"\"a\\\\\\\\\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b c", "d", NULL}},
492 {"\"a\\\\\\\\\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"b", "c d", NULL}},
493 {"\"a\\\\\\\\\"\"\"\"\"\"\"\"b c\" d", {"a\\\\\"\"\"b", "c d", NULL}},
496 int main(int argc, char **argv)
502 * Generation of tests.
504 * Given `-splat <args>', we print out a C-style
505 * representation of each argument (in the form "a", "b",
506 * NULL), backslash-escaping each backslash and double
509 * Given `-split <string>', we first doctor `string' by
510 * turning forward slashes into backslashes, single quotes
511 * into double quotes and underscores into spaces; and then
512 * we feed the resulting string to ourself with `-splat'.
514 * Given `-generate', we concoct a variety of fun test
515 * cases, encode them in quote-safe form (mapping \, " and
516 * space to /, ' and _ respectively) and feed each one to
519 if (!strcmp(argv[1], "-splat")) {
522 for (i = 2; i < argc; i++) {
524 for (p = argv[i]; *p; p++) {
525 if (*p == '\\' || *p == '"')
535 if (!strcmp(argv[1], "-split") && argc > 2) {
536 char *str = malloc(20 + strlen(argv[0]) + strlen(argv[2]));
539 q = str + sprintf(str, "%s -splat ", argv[0]);
541 for (p = argv[2]; *p; p++, q++) {
543 case '/': printf("\\\\"); *q = '\\'; break;
544 case '\'': printf("\\\""); *q = '"'; break;
545 case '_': printf(" "); *q = ' '; break;
546 default: putchar(*p); *q = *p; break;
560 if (!strcmp(argv[1], "-generate")) {
562 int i, initialquote, backslashes, quotes;
564 teststr = malloc(200 + strlen(argv[0]));
566 for (initialquote = 0; initialquote <= 1; initialquote++) {
567 for (backslashes = 0; backslashes < 5; backslashes++) {
568 for (quotes = 0; quotes < 9; quotes++) {
569 p = teststr + sprintf(teststr, "%s -split ", argv[0]);
570 if (initialquote) *p++ = '\'';
572 for (i = 0; i < backslashes; i++) *p++ = '/';
573 for (i = 0; i < quotes; i++) *p++ = '\'';
589 fprintf(stderr, "unrecognised option: \"%s\"\n", argv[1]);
594 * If we get here, we were invoked with no arguments, so just
598 for (i = 0; i < lenof(argv_tests); i++) {
602 split_into_argv(argv_tests[i].cmdline, &ac, &av);
604 for (j = 0; j < ac && argv_tests[i].argv[j]; j++) {
605 if (strcmp(av[j], argv_tests[i].argv[j])) {
606 printf("failed test %d (|%s|) arg %d: |%s| should be |%s|\n",
607 i, argv_tests[i].cmdline,
608 j, av[j], argv_tests[i].argv[j]);
612 printf("test %d (|%s|) arg %d: |%s| == |%s|\n",
613 i, argv_tests[i].cmdline,
614 j, av[j], argv_tests[i].argv[j]);
619 printf("failed test %d (|%s|): %d args returned, should be %d\n",
620 i, argv_tests[i].cmdline, ac, j);
621 if (argv_tests[i].argv[j])
622 printf("failed test %d (|%s|): %d args returned, should be more\n",
623 i, argv_tests[i].cmdline, ac);