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authorPeter Maydell <peter.maydell@linaro.org>2014-02-25 10:50:11 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-02-25 10:50:11 +0000
commite7a1d6c52a3ac6e76e5653c830b2545e0a4043d3 (patch)
treec79235495674ca3dceded77db7224e54419f6f61 /qemu-img.c
parentc58e291591dbc1c846fa152d4792554803405ebb (diff)
parent6141f3bd6904df7cf9519c6444a14a608b9874c4 (diff)
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches # gpg: Signature made Fri 21 Feb 2014 21:42:24 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (54 commits) iotests: Mixed quorum child device specifications quorum: Simplify quorum_open() quorum: Add unit test. quorum: Add quorum_open() and quorum_close(). quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum. quorum: Add quorum_co_flush(). quorum: Add quorum_invalidate_cache(). quorum: Add quorum_getlength(). quorum: Add quorum mechanism. quorum: Add quorum_aio_readv. blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify. quorum: Add quorum_aio_writev and its dependencies. quorum: Create BDRVQuorumState and BlkDriver and do init. quorum: Create quorum.c, add QuorumChildRequest and QuorumAIOCB. check-qdict: Test termination of qdict_array_split() check-qdict: Adjust test for qdict_array_split() qdict: Extract non-QDicts in qdict_array_split() qemu-config: Sections must consist of keys qemu-iotests: Check qemu-img command line parsing qemu-img: Allow -o help with incomplete argument list ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qemu-img.c')
-rw-r--r--qemu-img.c145
1 files changed, 100 insertions, 45 deletions
diff --git a/qemu-img.c b/qemu-img.c
index 1e5eaf0ac8..78fc86826c 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -250,16 +250,19 @@ static int print_block_option_help(const char *filename, const char *fmt)
return 1;
}
- proto_drv = bdrv_find_protocol(filename, true);
- if (!proto_drv) {
- error_report("Unknown protocol '%s'", filename);
- return 1;
- }
-
create_options = append_option_parameters(create_options,
drv->create_options);
- create_options = append_option_parameters(create_options,
- proto_drv->create_options);
+
+ if (filename) {
+ proto_drv = bdrv_find_protocol(filename, true);
+ if (!proto_drv) {
+ error_report("Unknown protocol '%s'", filename);
+ return 1;
+ }
+ create_options = append_option_parameters(create_options,
+ proto_drv->create_options);
+ }
+
print_option_help(create_options);
free_option_parameters(create_options);
return 0;
@@ -289,7 +292,7 @@ static BlockDriverState *bdrv_new_open(const char *filename,
drv = NULL;
}
- ret = bdrv_open(bs, filename, NULL, flags, drv, &local_err);
+ ret = bdrv_open(&bs, filename, NULL, NULL, flags, drv, &local_err);
if (ret < 0) {
error_report("Could not open '%s': %s", filename,
error_get_pretty(local_err));
@@ -310,9 +313,7 @@ static BlockDriverState *bdrv_new_open(const char *filename,
}
return bs;
fail:
- if (bs) {
- bdrv_unref(bs);
- }
+ bdrv_unref(bs);
return NULL;
}
@@ -371,13 +372,23 @@ static int img_create(int argc, char **argv)
case 'e':
error_report("option -e is deprecated, please use \'-o "
"encryption\' instead!");
- return 1;
+ goto fail;
case '6':
error_report("option -6 is deprecated, please use \'-o "
"compat6\' instead!");
- return 1;
+ goto fail;
case 'o':
- options = optarg;
+ if (!is_valid_option_list(optarg)) {
+ error_report("Invalid option list: %s", optarg);
+ goto fail;
+ }
+ if (!options) {
+ options = g_strdup(optarg);
+ } else {
+ char *old_options = options;
+ options = g_strdup_printf("%s,%s", options, optarg);
+ g_free(old_options);
+ }
break;
case 'q':
quiet = true;
@@ -386,10 +397,16 @@ static int img_create(int argc, char **argv)
}
/* Get the filename */
+ filename = (optind < argc) ? argv[optind] : NULL;
+ if (options && has_help_option(options)) {
+ g_free(options);
+ return print_block_option_help(filename, fmt);
+ }
+
if (optind >= argc) {
help();
}
- filename = argv[optind++];
+ optind++;
/* Get image size, if specified */
if (optind < argc) {
@@ -405,7 +422,7 @@ static int img_create(int argc, char **argv)
error_report("kilobytes, megabytes, gigabytes, terabytes, "
"petabytes and exabytes.");
}
- return 1;
+ goto fail;
}
img_size = (uint64_t)sval;
}
@@ -413,19 +430,20 @@ static int img_create(int argc, char **argv)
help();
}
- if (options && is_help_option(options)) {
- return print_block_option_help(filename, fmt);
- }
-
bdrv_img_create(filename, fmt, base_filename, base_fmt,
options, img_size, BDRV_O_FLAGS, &local_err, quiet);
if (local_err) {
error_report("%s: %s", filename, error_get_pretty(local_err));
error_free(local_err);
- return 1;
+ goto fail;
}
+ g_free(options);
return 0;
+
+fail:
+ g_free(options);
+ return 1;
}
static void dump_json_image_check(ImageCheck *check, bool quiet)
@@ -1150,6 +1168,9 @@ static int img_convert(int argc, char **argv)
Error *local_err = NULL;
QemuOpts *sn_opts = NULL;
+ /* Initialize before goto out */
+ qemu_progress_init(progress, 1.0);
+
fmt = NULL;
out_fmt = "raw";
cache = "unsafe";
@@ -1181,13 +1202,26 @@ static int img_convert(int argc, char **argv)
case 'e':
error_report("option -e is deprecated, please use \'-o "
"encryption\' instead!");
- return 1;
+ ret = -1;
+ goto out;
case '6':
error_report("option -6 is deprecated, please use \'-o "
"compat6\' instead!");
- return 1;
+ ret = -1;
+ goto out;
case 'o':
- options = optarg;
+ if (!is_valid_option_list(optarg)) {
+ error_report("Invalid option list: %s", optarg);
+ ret = -1;
+ goto out;
+ }
+ if (!options) {
+ options = g_strdup(optarg);
+ } else {
+ char *old_options = options;
+ options = g_strdup_printf("%s,%s", options, optarg);
+ g_free(old_options);
+ }
break;
case 's':
snapshot_name = optarg;
@@ -1198,7 +1232,8 @@ static int img_convert(int argc, char **argv)
if (!sn_opts) {
error_report("Failed in parsing snapshot param '%s'",
optarg);
- return 1;
+ ret = -1;
+ goto out;
}
} else {
snapshot_name = optarg;
@@ -1211,7 +1246,8 @@ static int img_convert(int argc, char **argv)
sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B);
if (sval < 0 || *end) {
error_report("Invalid minimum zero buffer size for sparse output specified");
- return 1;
+ ret = -1;
+ goto out;
}
min_sparse = sval / BDRV_SECTOR_SIZE;
@@ -1237,20 +1273,18 @@ static int img_convert(int argc, char **argv)
}
bs_n = argc - optind - 1;
- if (bs_n < 1) {
- help();
- }
-
- out_filename = argv[argc - 1];
+ out_filename = bs_n >= 1 ? argv[argc - 1] : NULL;
- /* Initialize before goto out */
- qemu_progress_init(progress, 1.0);
-
- if (options && is_help_option(options)) {
+ if (options && has_help_option(options)) {
ret = print_block_option_help(out_filename, out_fmt);
goto out;
}
+ if (bs_n < 1) {
+ help();
+ }
+
+
if (bs_n > 1 && out_baseimg) {
error_report("-B makes no sense when concatenating multiple input "
"images");
@@ -1639,6 +1673,7 @@ out:
free_option_parameters(create_options);
free_option_parameters(param);
qemu_vfree(buf);
+ g_free(options);
if (sn_opts) {
qemu_opts_del(sn_opts);
}
@@ -2314,7 +2349,7 @@ static int img_rebase(int argc, char **argv)
bs_old_backing = bdrv_new("old_backing");
bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
- ret = bdrv_open(bs_old_backing, backing_name, NULL, BDRV_O_FLAGS,
+ ret = bdrv_open(&bs_old_backing, backing_name, NULL, NULL, BDRV_O_FLAGS,
old_backing_drv, &local_err);
if (ret) {
error_report("Could not open old backing file '%s': %s",
@@ -2324,8 +2359,8 @@ static int img_rebase(int argc, char **argv)
}
if (out_baseimg[0]) {
bs_new_backing = bdrv_new("new_backing");
- ret = bdrv_open(bs_new_backing, out_baseimg, NULL, BDRV_O_FLAGS,
- new_backing_drv, &local_err);
+ ret = bdrv_open(&bs_new_backing, out_baseimg, NULL, NULL,
+ BDRV_O_FLAGS, new_backing_drv, &local_err);
if (ret) {
error_report("Could not open new backing file '%s': %s",
out_baseimg, error_get_pretty(local_err));
@@ -2637,7 +2672,18 @@ static int img_amend(int argc, char **argv)
help();
break;
case 'o':
- options = optarg;
+ if (!is_valid_option_list(optarg)) {
+ error_report("Invalid option list: %s", optarg);
+ ret = -1;
+ goto out;
+ }
+ if (!options) {
+ options = g_strdup(optarg);
+ } else {
+ char *old_options = options;
+ options = g_strdup_printf("%s,%s", options, optarg);
+ g_free(old_options);
+ }
break;
case 'f':
fmt = optarg;
@@ -2648,15 +2694,21 @@ static int img_amend(int argc, char **argv)
}
}
- if (optind != argc - 1) {
+ if (!options) {
help();
}
- if (!options) {
- help();
+ filename = (optind == argc - 1) ? argv[argc - 1] : NULL;
+ if (fmt && has_help_option(options)) {
+ /* If a format is explicitly specified (and possibly no filename is
+ * given), print option help here */
+ ret = print_block_option_help(filename, fmt);
+ goto out;
}
- filename = argv[argc - 1];
+ if (optind != argc - 1) {
+ help();
+ }
bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet);
if (!bs) {
@@ -2667,7 +2719,8 @@ static int img_amend(int argc, char **argv)
fmt = bs->drv->format_name;
- if (is_help_option(options)) {
+ if (has_help_option(options)) {
+ /* If the format was auto-detected, print option help here */
ret = print_block_option_help(filename, fmt);
goto out;
}
@@ -2694,6 +2747,8 @@ out:
}
free_option_parameters(create_options);
free_option_parameters(options_param);
+ g_free(options);
+
if (ret) {
return 1;
}