Revision 9230eaf6

b/qemu-img.c
25 25 
#include "osdep.h"
26 26 
#include "block_int.h"
27 27 
#include <assert.h>
28 
#include <stdio.h>
28 29 

  		





  29
  30
  
    
#ifdef _WIN32


  		





  30
  31
  
    
#include <windows.h>


  		





  ......




  57
  58
  
    
           "QEMU disk image utility\n"


  		





  58
  59
  
    
           "\n"


  		





  59
  60
  
    
           "Command syntax:\n"


  		





  60
  
  
    
           "  create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"


  		





  
  61
  
    
           "  create [-e] [-6] [-F fmt] [-b base_image] [-f fmt] filename [size]\n"


  		





  61
  62
  
    
           "  commit [-f fmt] filename\n"


  		





  62
  63
  
    
           "  convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] [-B output_base_image] filename [filename2 [...]] output_filename\n"


  		





  63
  64
  
    
           "  info [-f fmt] filename\n"


  		





  ......




  217
  218
  
    
{


  		





  218
  219
  
    
    int c, ret, flags;


  		





  219
  220
  
    
    const char *fmt = "raw";


  		





  
  221
  
    
    const char *base_fmt = NULL;


  		





  220
  222
  
    
    const char *filename;


  		





  221
  223
  
    
    const char *base_filename = NULL;


  		





  222
  224
  
    
    uint64_t size;


  		





  ......




  226
  228
  
    

  		





  227
  229
  
    
    flags = 0;


  		





  228
  230
  
    
    for(;;) {


  		





  229
  
  
    
        c = getopt(argc, argv, "b:f:he6");


  		





  
  231
  
    
        c = getopt(argc, argv, "F:b:f:he6");


  		





  230
  232
  
    
        if (c == -1)


  		





  231
  233
  
    
            break;


  		





  232
  234
  
    
        switch(c) {


  		





  233
  235
  
    
        case 'h':


  		





  234
  236
  
    
            help();


  		





  235
  237
  
    
            break;


  		





  
  238
  
    
        case 'F':


  		





  
  239
  
    
            base_fmt = optarg;


  		





  
  240
  
    
            break;


  		





  236
  241
  
    
        case 'b':


  		





  237
  242
  
    
            base_filename = optarg;


  		





  238
  243
  
    
            break;


  		





  ......




  253
  258
  
    
    size = 0;


  		





  254
  259
  
    
    if (base_filename) {


  		





  255
  260
  
    
        BlockDriverState *bs;


  		





  256
  
  
    
        bs = bdrv_new_open(base_filename, NULL);


  		





  
  261
  
    
        BlockDriver *base_drv = NULL;


  		





  
  262
  
    

  		





  
  263
  
    
        if (base_fmt) {


  		





  
  264
  
    
            base_drv = bdrv_find_format(base_fmt);


  		





  
  265
  
    
            if (base_drv == NULL)


  		





  
  266
  
    
                error("Unknown basefile format '%s'", base_fmt);


  		





  
  267
  
    
        }


  		





  
  268
  
    

  		





  
  269
  
    
        bs = bdrv_new_open(base_filename, base_fmt);


  		





  257
  270
  
    
        bdrv_get_geometry(bs, &size);


  		





  258
  271
  
    
        size *= 512;


  		





  259
  272
  
    
        bdrv_delete(bs);


  		





  ......




  284
  297
  
    
    if (base_filename) {


  		





  285
  298
  
    
        printf(", backing_file=%s",


  		





  286
  299
  
    
               base_filename);


  		





  
  300
  
    
         if (base_fmt)


  		





  
  301
  
    
             printf(", backing_fmt=%s",


  		





  
  302
  
    
                    base_fmt);


  		





  287
  303
  
    
    }


  		





  288
  304
  
    
    printf(", size=%" PRIu64 " kB\n", size / 1024);


  		





  289
  
  
    
    ret = bdrv_create(drv, filename, size / 512, base_filename, flags);


  		





  
  305
  
    
    ret = bdrv_create2(drv, filename, size / 512, base_filename, base_fmt, flags);


  		





  290
  306
  
    
    if (ret < 0) {


  		





  291
  307
  
    
        if (ret == -ENOTSUP) {


  		





  292
  308
  
    
            error("Formatting or formatting option not supported for file format '%s'", fmt);


  		












  

    
      b/qemu-img.texi
    
  






  8
  8
  
    

  		





  9
  9
  
    
The following commands are supported:


  		





  10
  10
  
    
@table @option


  		





  11
  
  
    
@item create [-e] [-6] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]


  		





  
  11
  
    
@item create [-e] [-6] [-F @var{base_fmt}] [-b @var{base_image}] [-f @var{fmt}] @var{filename} [@var{size}]


  		





  12
  12
  
    
@item commit [-f @var{fmt}] @var{filename}


  		





  13
  13
  
    
@item convert [-c] [-e] [-6] [-f @var{fmt}] [-O @var{output_fmt}] [-B @var{output_base_image}] @var{filename} [@var{filename2} [...]] @var{output_filename}


  		





  14
  14
  
    
@item info [-f @var{fmt}] @var{filename}


  		





  ......




  27
  27
  
    
image of the specified base image; @code{output_base_image} should have the same


  		





  28
  28
  
    
content as the input's base image, however the path, image format, etc may


  		





  29
  29
  
    
differ


  		





  
  30
  
    
@item base_fmt


  		





  
  31
  
    
is the disk image format of @var{base_image}. for more information look at @var{fmt}


  		





  30
  32
  
    
@item fmt


  		





  31
  33
  
    
is the disk image format. It is guessed automatically in most cases. The following formats are supported:


  		





  32
  34
  
    

  		












Also available in:
  Unified diff