diff options
-rw-r--r-- | qemu-img.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/qemu-img.c b/qemu-img.c index aded72d49f..50cfdda6d5 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -188,6 +188,33 @@ static int read_password(char *buf, int buf_size) } #endif +static int print_block_option_help(const char *filename, const char *fmt) +{ + BlockDriver *drv, *proto_drv; + QEMUOptionParameter *create_options = NULL; + + /* Find driver and parse its options */ + drv = bdrv_find_format(fmt); + if (!drv) { + error("Unknown file format '%s'", fmt); + return 1; + } + + proto_drv = bdrv_find_protocol(filename); + if (!proto_drv) { + error("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); + print_option_help(create_options); + free_option_parameters(create_options); + return 0; +} + static BlockDriverState *bdrv_new_open(const char *filename, const char *fmt, int flags) @@ -310,6 +337,11 @@ static int img_create(int argc, char **argv) help(); filename = argv[optind++]; + if (options && !strcmp(options, "?")) { + ret = print_block_option_help(filename, fmt); + goto out; + } + /* Find driver and parse its options */ drv = bdrv_find_format(fmt); if (!drv) { @@ -328,11 +360,6 @@ static int img_create(int argc, char **argv) create_options = append_option_parameters(create_options, proto_drv->create_options); - if (options && !strcmp(options, "?")) { - print_option_help(create_options); - goto out; - } - /* Create parameter list with default values */ param = parse_option_parameters("", create_options, param); set_option_parameter_int(param, BLOCK_OPT_SIZE, -1); @@ -694,6 +721,11 @@ static int img_convert(int argc, char **argv) out_filename = argv[argc - 1]; + if (options && !strcmp(options, "?")) { + ret = print_block_option_help(out_filename, out_fmt); + goto out; + } + if (bs_n > 1 && out_baseimg) { error("-B makes no sense when concatenating multiple input images"); ret = -1; @@ -746,10 +778,6 @@ static int img_convert(int argc, char **argv) drv->create_options); create_options = append_option_parameters(create_options, proto_drv->create_options); - if (options && !strcmp(options, "?")) { - print_option_help(create_options); - goto out; - } if (options) { param = parse_option_parameters(options, create_options, param); |