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add example usage to hello command

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This commit is contained in:
BVK Chaitanya 2010-06-10 12:12:03 +05:30
parent 3db1c9eee4
commit 28be0e94db
34 changed files with 220 additions and 102 deletions
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12
commands/i386/pc/drivemap.c
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@ -196,13 +196,13 @@ list_mappings (void)
}
static grub_err_t
grub_cmd_drivemap (struct grub_extcmd *cmd, int argc, char **args)
grub_cmd_drivemap (struct grub_extcmd_context *ctxt, int argc, char **args)
{
if (cmd->state[OPTIDX_LIST].set)
if (ctxt->state[OPTIDX_LIST].set)
{
return list_mappings ();
}
else if (cmd->state[OPTIDX_RESET].set)
else if (ctxt->state[OPTIDX_RESET].set)
{
/* Reset: just delete all mappings, freeing their memory. */
drivemap_node_t *curnode = map_head;
@ -216,7 +216,7 @@ grub_cmd_drivemap (struct grub_extcmd *cmd, int argc, char **args)
map_head = 0;
return GRUB_ERR_NONE;
}
else if (!cmd->state[OPTIDX_SWAP].set && argc == 0)
else if (!ctxt->state[OPTIDX_SWAP].set && argc == 0)
{
/* No arguments */
return list_mappings ();
@ -248,11 +248,11 @@ grub_cmd_drivemap (struct grub_extcmd *cmd, int argc, char **args)
}
/* Set the mapping for the disk (overwrites any existing mapping). */
grub_dprintf ("drivemap", "%s %s (%02x) = %s (%02x)\n",
cmd->state[OPTIDX_SWAP].set ? "Swapping" : "Mapping",
ctxt->state[OPTIDX_SWAP].set ? "Swapping" : "Mapping",
args[1], mapto, args[0], mapfrom);
err = drivemap_set (mapto, mapfrom);
/* If -s, perform the reverse mapping too (only if the first was OK). */
if (cmd->state[OPTIDX_SWAP].set && err == GRUB_ERR_NONE)
if (ctxt->state[OPTIDX_SWAP].set && err == GRUB_ERR_NONE)
err = drivemap_set (mapfrom, mapto);
return err;
}