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CommitLineData
e3aff4f6
AL
1/*
2 * Command line utility to exercise the QEMU I/O path.
3 *
4 * Copyright (C) 2009 Red Hat, Inc.
5 * Copyright (c) 2003-2005 Silicon Graphics, Inc.
6 *
7 * This work is licensed under the terms of the GNU GPL, version 2 or later.
8 * See the COPYING file in the top-level directory.
9 */
452fcdbc 10
80c71a24 11#include "qemu/osdep.h"
e3aff4f6 12#include <getopt.h>
c32d766a 13#include <libgen.h>
0e448a05
DB
14#ifndef _WIN32
15#include <termios.h>
16#endif
e3aff4f6 17
49f95221 18#include "qemu/help-texts.h"
06680b15 19#include "qemu/cutils.h"
da34e65c 20#include "qapi/error.h"
3d21994f 21#include "qemu-io.h"
d49b6836 22#include "qemu/error-report.h"
1de7afc9 23#include "qemu/main-loop.h"
0b8fa32f 24#include "qemu/module.h"
b543c5cd
HR
25#include "qemu/option.h"
26#include "qemu/config-file.h"
0cf17e18 27#include "qemu/readline.h"
e9a80859 28#include "qemu/log.h"
98c5d2e7 29#include "qemu/sockets.h"
d49b6836 30#include "qapi/qmp/qstring.h"
452fcdbc 31#include "qapi/qmp/qdict.h"
9ba371b6 32#include "qom/object_interfaces.h"
26f54e9a 33#include "sysemu/block-backend.h"
737e150e 34#include "block/block_int.h"
d7bb72c8 35#include "trace/control.h"
c2297088 36#include "crypto/init.h"
4face32a 37#include "qemu-version.h"
e3aff4f6 38
43642b38 39#define CMD_NOFILE_OK 0x01
e3aff4f6 40
26f54e9a 41static BlockBackend *qemuio_blk;
b444d0e9 42static bool quit_qemu_io;
191c2890 43
d1174f13
KW
44/* qemu-io commands passed using -c */
45static int ncmdline;
46static char **cmdline;
499afa25 47static bool imageOpts;
d1174f13 48
0cf17e18
SH
49static ReadLineState *readline_state;
50
0e448a05
DB
51static int ttyEOF;
52
53static int get_eof_char(void)
54{
55#ifdef _WIN32
56 return 0x4; /* Ctrl-D */
57#else
58 struct termios tty;
59 if (tcgetattr(STDIN_FILENO, &tty) != 0) {
60 if (errno == ENOTTY) {
61 return 0x0; /* just expect read() == 0 */
62 } else {
63 return 0x4; /* Ctrl-D */
64 }
65 }
66
67 return tty.c_cc[VEOF];
68#endif
69}
70
b32d7a39 71static int close_f(BlockBackend *blk, int argc, char **argv)
e3aff4f6 72{
26f54e9a 73 blk_unref(qemuio_blk);
26f54e9a 74 qemuio_blk = NULL;
b32d7a39 75 return 0;
e3aff4f6
AL
76}
77
78static const cmdinfo_t close_cmd = {
43642b38
DN
79 .name = "close",
80 .altname = "c",
81 .cfunc = close_f,
82 .oneline = "close the current open file",
e3aff4f6
AL
83};
84
459571f7
FZ
85static int openfile(char *name, int flags, bool writethrough, bool force_share,
86 QDict *opts)
e3aff4f6 87{
34b5d2c6
HR
88 Error *local_err = NULL;
89
1b58b438 90 if (qemuio_blk) {
b9884681 91 error_report("file open already, try 'help close'");
cb3e7f08 92 qobject_unref(opts);
43642b38
DN
93 return 1;
94 }
95
459571f7
FZ
96 if (force_share) {
97 if (!opts) {
98 opts = qdict_new();
99 }
100 if (qdict_haskey(opts, BDRV_OPT_FORCE_SHARE)
2a01c01f 101 && strcmp(qdict_get_str(opts, BDRV_OPT_FORCE_SHARE), "on")) {
459571f7 102 error_report("-U conflicts with image options");
cb3e7f08 103 qobject_unref(opts);
459571f7
FZ
104 return 1;
105 }
2a01c01f 106 qdict_put_str(opts, BDRV_OPT_FORCE_SHARE, "on");
459571f7 107 }
efaa7c4e 108 qemuio_blk = blk_new_open(name, NULL, opts, flags, &local_err);
1b58b438 109 if (!qemuio_blk) {
b9884681
MA
110 error_reportf_err(local_err, "can't open%s%s: ",
111 name ? " device " : "", name ?: "");
dbb651c4 112 return 1;
43642b38
DN
113 }
114
e151fc16 115 blk_set_enable_write_cache(qemuio_blk, !writethrough);
8caf0212 116
43642b38 117 return 0;
e3aff4f6
AL
118}
119
43642b38 120static void open_help(void)
e3aff4f6 121{
43642b38 122 printf(
e3aff4f6
AL
123"\n"
124" opens a new file in the requested mode\n"
125"\n"
126" Example:\n"
e4e12bb2 127" 'open -n -o driver=raw /tmp/data' - opens raw data file read-write, uncached\n"
e3aff4f6
AL
128"\n"
129" Opens a file for subsequent use by all of the other qemu-io commands.\n"
e3aff4f6
AL
130" -r, -- open file read-only\n"
131" -s, -- use snapshot file\n"
0f40444c 132" -C, -- use copy-on-read\n"
b8d970f1 133" -n, -- disable host cache, short for -t none\n"
459571f7 134" -U, -- force shared permissions\n"
1c5a2aec
AM
135" -k, -- use kernel AIO implementation (Linux only, prefer use of -i)\n"
136" -i, -- use AIO mode (threads, native or io_uring)\n"
b8d970f1
EB
137" -t, -- use the given cache mode for the image\n"
138" -d, -- use the given discard mode for the image\n"
b543c5cd 139" -o, -- options to be given to the block driver"
e3aff4f6
AL
140"\n");
141}
142
b32d7a39 143static int open_f(BlockBackend *blk, int argc, char **argv);
22a2bdcb
BS
144
145static const cmdinfo_t open_cmd = {
43642b38
DN
146 .name = "open",
147 .altname = "o",
148 .cfunc = open_f,
149 .argmin = 1,
150 .argmax = -1,
151 .flags = CMD_NOFILE_OK,
0f40444c 152 .args = "[-rsCnkU] [-t cache] [-d discard] [-o options] [path]",
43642b38
DN
153 .oneline = "open the file specified by path",
154 .help = open_help,
22a2bdcb 155};
e3aff4f6 156
b543c5cd
HR
157static QemuOptsList empty_opts = {
158 .name = "drive",
443422fd 159 .merge_lists = true,
b543c5cd
HR
160 .head = QTAILQ_HEAD_INITIALIZER(empty_opts.head),
161 .desc = {
162 /* no elements => accept any params */
163 { /* end of list */ }
164 },
165};
166
b32d7a39 167static int open_f(BlockBackend *blk, int argc, char **argv)
e3aff4f6 168{
b8d970f1 169 int flags = BDRV_O_UNMAP;
43642b38 170 int readonly = 0;
e151fc16 171 bool writethrough = true;
43642b38 172 int c;
b32d7a39 173 int ret;
b543c5cd 174 QemuOpts *qopts;
443422fd 175 QDict *opts;
459571f7 176 bool force_share = false;
43642b38 177
1c5a2aec 178 while ((c = getopt(argc, argv, "snCro:ki:t:d:U")) != -1) {
43642b38
DN
179 switch (c) {
180 case 's':
181 flags |= BDRV_O_SNAPSHOT;
182 break;
183 case 'n':
e151fc16
KW
184 flags |= BDRV_O_NOCACHE;
185 writethrough = false;
43642b38 186 break;
0f40444c
EB
187 case 'C':
188 flags |= BDRV_O_COPY_ON_READ;
189 break;
43642b38
DN
190 case 'r':
191 readonly = 1;
192 break;
b8d970f1
EB
193 case 'k':
194 flags |= BDRV_O_NATIVE_AIO;
195 break;
196 case 't':
197 if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) {
198 error_report("Invalid cache option: %s", optarg);
199 qemu_opts_reset(&empty_opts);
b32d7a39 200 return -EINVAL;
b8d970f1
EB
201 }
202 break;
203 case 'd':
204 if (bdrv_parse_discard_flags(optarg, &flags) < 0) {
205 error_report("Invalid discard option: %s", optarg);
206 qemu_opts_reset(&empty_opts);
b32d7a39 207 return -EINVAL;
b8d970f1
EB
208 }
209 break;
1c5a2aec
AM
210 case 'i':
211 if (bdrv_parse_aio(optarg, &flags) < 0) {
212 error_report("Invalid aio option: %s", optarg);
213 qemu_opts_reset(&empty_opts);
214 return -EINVAL;
215 }
216 break;
b543c5cd 217 case 'o':
499afa25
DB
218 if (imageOpts) {
219 printf("--image-opts and 'open -o' are mutually exclusive\n");
b8d970f1 220 qemu_opts_reset(&empty_opts);
b32d7a39 221 return -EINVAL;
499afa25 222 }
70b94331 223 if (!qemu_opts_parse_noisily(&empty_opts, optarg, false)) {
443422fd 224 qemu_opts_reset(&empty_opts);
b32d7a39 225 return -EINVAL;
b543c5cd 226 }
b543c5cd 227 break;
459571f7
FZ
228 case 'U':
229 force_share = true;
230 break;
43642b38 231 default:
443422fd 232 qemu_opts_reset(&empty_opts);
b444d0e9 233 qemuio_command_usage(&open_cmd);
b32d7a39 234 return -EINVAL;
f5edb014 235 }
43642b38
DN
236 }
237
238 if (!readonly) {
239 flags |= BDRV_O_RDWR;
240 }
e3aff4f6 241
499afa25
DB
242 if (imageOpts && (optind == argc - 1)) {
243 if (!qemu_opts_parse_noisily(&empty_opts, argv[optind], false)) {
244 qemu_opts_reset(&empty_opts);
b32d7a39 245 return -EINVAL;
499afa25
DB
246 }
247 optind++;
248 }
249
443422fd
MA
250 qopts = qemu_opts_find(&empty_opts, NULL);
251 opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL;
252 qemu_opts_reset(&empty_opts);
253
fd0fee34 254 if (optind == argc - 1) {
b32d7a39 255 ret = openfile(argv[optind], flags, writethrough, force_share, opts);
fd0fee34 256 } else if (optind == argc) {
b32d7a39 257 ret = openfile(NULL, flags, writethrough, force_share, opts);
fd0fee34 258 } else {
cb3e7f08 259 qobject_unref(opts);
64ebf556 260 qemuio_command_usage(&open_cmd);
b32d7a39
HR
261 return -EINVAL;
262 }
263
264 if (ret) {
265 return -EINVAL;
43642b38 266 }
b32d7a39
HR
267
268 return 0;
e3aff4f6
AL
269}
270
b32d7a39 271static int quit_f(BlockBackend *blk, int argc, char **argv)
e681be7e 272{
b444d0e9 273 quit_qemu_io = true;
b32d7a39 274 return 0;
e681be7e
KW
275}
276
277static const cmdinfo_t quit_cmd = {
278 .name = "quit",
279 .altname = "q",
280 .cfunc = quit_f,
281 .argmin = -1,
282 .argmax = -1,
283 .flags = CMD_FLAG_GLOBAL,
284 .oneline = "exit the program",
285};
286
e3aff4f6
AL
287static void usage(const char *name)
288{
43642b38 289 printf(
e4e12bb2 290"Usage: %s [OPTIONS]... [-c STRING]... [file]\n"
84844a20 291"QEMU Disk exerciser\n"
e3aff4f6 292"\n"
9ba371b6
DB
293" --object OBJECTDEF define an object such as 'secret' for\n"
294" passwords and/or encryption keys\n"
e4e12bb2 295" --image-opts treat file as option string\n"
d208cc35
MK
296" -c, --cmd STRING execute command with its arguments\n"
297" from the given string\n"
be6273da 298" -f, --format FMT specifies the block driver to use\n"
e3aff4f6
AL
299" -r, --read-only export read-only\n"
300" -s, --snapshot use snapshot file\n"
e4e12bb2 301" -n, --nocache disable host cache, short for -t none\n"
0f40444c 302" -C, --copy-on-read enable copy-on-read\n"
e3aff4f6 303" -m, --misalign misalign allocations for O_DIRECT\n"
1c5a2aec
AM
304" -k, --native-aio use kernel AIO implementation\n"
305" (Linux only, prefer use of -i)\n"
306" -i, --aio=MODE use AIO mode (threads, native or io_uring)\n"
592fa070 307" -t, --cache=MODE use the given cache mode for the image\n"
e4e12bb2 308" -d, --discard=MODE use the given discard mode for the image\n"
e9a80859
DL
309" -T, --trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
310" specify tracing options\n"
311" see qemu-img(1) man page for full description\n"
459571f7 312" -U, --force-share force shared permissions\n"
e3aff4f6
AL
313" -h, --help display this help and exit\n"
314" -V, --version output version information and exit\n"
d208cc35 315"\n"
f5048cb7
EB
316"See '%s -c help' for information on available commands.\n"
317"\n"
318QEMU_HELP_BOTTOM "\n",
d208cc35 319 name, name);
e3aff4f6
AL
320}
321
d1174f13
KW
322static char *get_prompt(void)
323{
324 static char prompt[FILENAME_MAX + 2 /*"> "*/ + 1 /*"\0"*/ ];
325
326 if (!prompt[0]) {
336d354b 327 snprintf(prompt, sizeof(prompt), "%s> ", g_get_prgname());
d1174f13
KW
328 }
329
330 return prompt;
331}
332
9edc6313 333static void G_GNUC_PRINTF(2, 3) readline_printf_func(void *opaque,
d5d1507b 334 const char *fmt, ...)
d1174f13 335{
0cf17e18
SH
336 va_list ap;
337 va_start(ap, fmt);
338 vprintf(fmt, ap);
339 va_end(ap);
d1174f13 340}
0cf17e18
SH
341
342static void readline_flush_func(void *opaque)
d1174f13 343{
0cf17e18 344 fflush(stdout);
d1174f13
KW
345}
346
0cf17e18 347static void readline_func(void *opaque, const char *str, void *readline_opaque)
d1174f13 348{
0cf17e18
SH
349 char **line = readline_opaque;
350 *line = g_strdup(str);
351}
352
4694020d
SH
353static void completion_match(const char *cmd, void *opaque)
354{
355 readline_add_completion(readline_state, cmd);
356}
357
0cf17e18
SH
358static void readline_completion_func(void *opaque, const char *str)
359{
4694020d
SH
360 readline_set_completion_index(readline_state, strlen(str));
361 qemuio_complete_command(str, completion_match, NULL);
0cf17e18
SH
362}
363
364static char *fetchline_readline(void)
365{
366 char *line = NULL;
367
368 readline_start(readline_state, get_prompt(), 0, readline_func, &line);
369 while (!line) {
370 int ch = getchar();
0e448a05
DB
371 if (ttyEOF != 0x0 && ch == ttyEOF) {
372 printf("\n");
0cf17e18 373 break;
d1174f13 374 }
0cf17e18 375 readline_handle_byte(readline_state, ch);
d1174f13
KW
376 }
377 return line;
378}
0cf17e18
SH
379
380#define MAXREADLINESZ 1024
381static char *fetchline_fgets(void)
d1174f13
KW
382{
383 char *p, *line = g_malloc(MAXREADLINESZ);
384
385 if (!fgets(line, MAXREADLINESZ, stdin)) {
386 g_free(line);
387 return NULL;
388 }
389
390 p = line + strlen(line);
391 if (p != line && p[-1] == '\n') {
392 p[-1] = '\0';
393 }
394
395 return line;
396}
0cf17e18
SH
397
398static char *fetchline(void)
399{
400 if (readline_state) {
401 return fetchline_readline();
402 } else {
403 return fetchline_fgets();
404 }
405}
d1174f13
KW
406
407static void prep_fetchline(void *opaque)
408{
409 int *fetchable = opaque;
410
411 qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
412 *fetchable= 1;
413}
414
78632a3d
VSO
415static int do_qemuio_command(const char *cmd)
416{
417 int ret;
418 AioContext *ctx =
419 qemuio_blk ? blk_get_aio_context(qemuio_blk) : qemu_get_aio_context();
420
421 aio_context_acquire(ctx);
422 ret = qemuio_command(qemuio_blk, cmd);
423 aio_context_release(ctx);
424
425 return ret;
426}
427
6b3aa848 428static int command_loop(void)
d1174f13 429{
b444d0e9 430 int i, fetchable = 0, prompted = 0;
6b3aa848 431 int ret, last_error = 0;
d1174f13
KW
432 char *input;
433
b444d0e9 434 for (i = 0; !quit_qemu_io && i < ncmdline; i++) {
78632a3d 435 ret = do_qemuio_command(cmdline[i]);
6b3aa848
HR
436 if (ret < 0) {
437 last_error = ret;
438 }
d1174f13
KW
439 }
440 if (cmdline) {
441 g_free(cmdline);
6b3aa848 442 return last_error;
d1174f13
KW
443 }
444
b444d0e9 445 while (!quit_qemu_io) {
d1174f13
KW
446 if (!prompted) {
447 printf("%s", get_prompt());
448 fflush(stdout);
449 qemu_set_fd_handler(STDIN_FILENO, prep_fetchline, NULL, &fetchable);
450 prompted = 1;
451 }
452
453 main_loop_wait(false);
454
455 if (!fetchable) {
456 continue;
457 }
458
459 input = fetchline();
460 if (input == NULL) {
461 break;
462 }
78632a3d 463 ret = do_qemuio_command(input);
d1174f13
KW
464 g_free(input);
465
6b3aa848
HR
466 if (ret < 0) {
467 last_error = ret;
468 }
469
d1174f13
KW
470 prompted = 0;
471 fetchable = 0;
472 }
473 qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL);
6b3aa848
HR
474
475 return last_error;
d1174f13
KW
476}
477
478static void add_user_command(char *optarg)
479{
5839e53b 480 cmdline = g_renew(char *, cmdline, ++ncmdline);
d1174f13
KW
481 cmdline[ncmdline-1] = optarg;
482}
483
0cf17e18
SH
484static void reenable_tty_echo(void)
485{
486 qemu_set_tty_echo(STDIN_FILENO, true);
487}
488
9ba371b6
DB
489enum {
490 OPTION_OBJECT = 256,
499afa25 491 OPTION_IMAGE_OPTS = 257,
9ba371b6
DB
492};
493
499afa25
DB
494static QemuOptsList file_opts = {
495 .name = "file",
496 .implied_opt_name = "file",
497 .head = QTAILQ_HEAD_INITIALIZER(file_opts.head),
498 .desc = {
499 /* no elements => accept any params */
500 { /* end of list */ }
501 },
502};
503
e3aff4f6
AL
504int main(int argc, char **argv)
505{
43642b38 506 int readonly = 0;
1c5a2aec 507 const char *sopt = "hVc:d:f:rsnCmki:t:T:U";
43642b38 508 const struct option lopt[] = {
a513416e
DB
509 { "help", no_argument, NULL, 'h' },
510 { "version", no_argument, NULL, 'V' },
a513416e
DB
511 { "cmd", required_argument, NULL, 'c' },
512 { "format", required_argument, NULL, 'f' },
513 { "read-only", no_argument, NULL, 'r' },
514 { "snapshot", no_argument, NULL, 's' },
515 { "nocache", no_argument, NULL, 'n' },
0f40444c 516 { "copy-on-read", no_argument, NULL, 'C' },
a513416e
DB
517 { "misalign", no_argument, NULL, 'm' },
518 { "native-aio", no_argument, NULL, 'k' },
1c5a2aec 519 { "aio", required_argument, NULL, 'i' },
a513416e
DB
520 { "discard", required_argument, NULL, 'd' },
521 { "cache", required_argument, NULL, 't' },
522 { "trace", required_argument, NULL, 'T' },
523 { "object", required_argument, NULL, OPTION_OBJECT },
524 { "image-opts", no_argument, NULL, OPTION_IMAGE_OPTS },
459571f7 525 { "force-share", no_argument, 0, 'U'},
43642b38
DN
526 { NULL, 0, NULL, 0 }
527 };
528 int c;
529 int opt_index = 0;
9e8f1835 530 int flags = BDRV_O_UNMAP;
6b3aa848 531 int ret;
e151fc16 532 bool writethrough = true;
1b58b438 533 QDict *opts = NULL;
499afa25 534 const char *format = NULL;
459571f7 535 bool force_share = false;
43642b38 536
526eda14
MK
537#ifdef CONFIG_POSIX
538 signal(SIGPIPE, SIG_IGN);
539#endif
540
98c5d2e7 541 socket_init();
f5852efa 542 error_init(argv[0]);
fe4db84d 543 module_call_init(MODULE_INIT_TRACE);
10f5bff6 544 qemu_init_exec_dir(argv[0]);
43642b38 545
e8f2d272 546 qcrypto_init(&error_fatal);
c2297088 547
064097d9 548 module_call_init(MODULE_INIT_QOM);
e9a80859 549 qemu_add_opts(&qemu_trace_opts);
be6273da
KW
550 bdrv_init();
551
43642b38
DN
552 while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) {
553 switch (c) {
554 case 's':
555 flags |= BDRV_O_SNAPSHOT;
556 break;
557 case 'n':
e151fc16
KW
558 flags |= BDRV_O_NOCACHE;
559 writethrough = false;
43642b38 560 break;
0f40444c
EB
561 case 'C':
562 flags |= BDRV_O_COPY_ON_READ;
563 break;
9e8f1835
PB
564 case 'd':
565 if (bdrv_parse_discard_flags(optarg, &flags) < 0) {
566 error_report("Invalid discard option: %s", optarg);
567 exit(1);
568 }
569 break;
be6273da 570 case 'f':
499afa25 571 format = optarg;
be6273da 572 break;
43642b38
DN
573 case 'c':
574 add_user_command(optarg);
575 break;
576 case 'r':
577 readonly = 1;
578 break;
579 case 'm':
f9883880 580 qemuio_misalign = true;
43642b38 581 break;
43642b38
DN
582 case 'k':
583 flags |= BDRV_O_NATIVE_AIO;
584 break;
1c5a2aec
AM
585 case 'i':
586 if (bdrv_parse_aio(optarg, &flags) < 0) {
587 error_report("Invalid aio option: %s", optarg);
588 exit(1);
589 }
590 break;
592fa070 591 case 't':
e151fc16 592 if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) {
592fa070
KW
593 error_report("Invalid cache option: %s", optarg);
594 exit(1);
595 }
596 break;
d7bb72c8 597 case 'T':
92eecfff 598 trace_opt_parse(optarg);
d7bb72c8 599 break;
43642b38 600 case 'V':
7e563bfb 601 printf("%s version " QEMU_FULL_VERSION "\n"
336d354b 602 QEMU_COPYRIGHT "\n", g_get_prgname());
43642b38
DN
603 exit(0);
604 case 'h':
336d354b 605 usage(g_get_prgname());
43642b38 606 exit(0);
459571f7
FZ
607 case 'U':
608 force_share = true;
609 break;
b3e79bc6
KW
610 case OPTION_OBJECT:
611 user_creatable_process_cmdline(optarg);
612 break;
499afa25
DB
613 case OPTION_IMAGE_OPTS:
614 imageOpts = true;
615 break;
43642b38 616 default:
336d354b 617 usage(g_get_prgname());
43642b38 618 exit(1);
f5edb014 619 }
43642b38
DN
620 }
621
622 if ((argc - optind) > 1) {
336d354b 623 usage(g_get_prgname());
43642b38
DN
624 exit(1);
625 }
e3aff4f6 626
499afa25
DB
627 if (format && imageOpts) {
628 error_report("--image-opts and -f are mutually exclusive");
629 exit(1);
630 }
631
f9734d5d 632 qemu_init_main_loop(&error_fatal);
a57d1143 633
e9a80859
DL
634 if (!trace_init_backends()) {
635 exit(1);
636 }
92eecfff 637 trace_init_file();
c5955f4f 638 qemu_set_log(LOG_TRACE, &error_fatal);
e9a80859 639
43642b38 640 /* initialize commands */
c2cdf5c5
KW
641 qemuio_add_command(&quit_cmd);
642 qemuio_add_command(&open_cmd);
643 qemuio_add_command(&close_cmd);
43642b38 644
0cf17e18 645 if (isatty(STDIN_FILENO)) {
0e448a05 646 ttyEOF = get_eof_char();
0cf17e18
SH
647 readline_state = readline_init(readline_printf_func,
648 readline_flush_func,
649 NULL,
650 readline_completion_func);
651 qemu_set_tty_echo(STDIN_FILENO, false);
652 atexit(reenable_tty_echo);
653 }
654
43642b38
DN
655 /* open the device */
656 if (!readonly) {
657 flags |= BDRV_O_RDWR;
658 }
659
660 if ((argc - optind) == 1) {
499afa25
DB
661 if (imageOpts) {
662 QemuOpts *qopts = NULL;
663 qopts = qemu_opts_parse_noisily(&file_opts, argv[optind], false);
664 if (!qopts) {
665 exit(1);
666 }
667 opts = qemu_opts_to_qdict(qopts, NULL);
459571f7 668 if (openfile(NULL, flags, writethrough, force_share, opts)) {
b7aa1315
NS
669 exit(1);
670 }
499afa25
DB
671 } else {
672 if (format) {
673 opts = qdict_new();
46f5ac20 674 qdict_put_str(opts, "driver", format);
499afa25 675 }
459571f7
FZ
676 if (openfile(argv[optind], flags, writethrough,
677 force_share, opts)) {
b7aa1315
NS
678 exit(1);
679 }
499afa25 680 }
43642b38 681 }
6b3aa848 682 ret = command_loop();
e3aff4f6 683
43642b38 684 /*
922453bc 685 * Make sure all outstanding requests complete before the program exits.
43642b38 686 */
922453bc 687 bdrv_drain_all();
95533d5f 688
26f54e9a 689 blk_unref(qemuio_blk);
0cf17e18 690 g_free(readline_state);
6b3aa848
HR
691
692 if (ret < 0) {
693 return 1;
694 } else {
695 return 0;
696 }
e3aff4f6 697}