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lvmcmdline: support uint32

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Add simple function to wrap usage for only uint32 numbers.
Unlike  'int_arg'  which accepts full range of 64bit number
this function will error on numbers out of this range:

   <0, UINT32_MAX>
This commit is contained in:
Zdenek Kabelac 2017-01-03 13:02:52 +01:00
parent e75f0b7c77
commit 9f65a3f0c5
2 changed files with 9 additions and 0 deletions
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8
tools/lvmcmdline.c
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@ -554,6 +554,14 @@ int int_arg(struct cmd_context *cmd __attribute__((unused)), struct arg_values *
return 1;
}
int uint32_arg(struct cmd_context *cmd, struct arg_values *av)
{
if (!int_arg(cmd, av) || (av->ui64_value > UINT32_MAX))
return 0;
return 1;
}
int int_arg_with_sign(struct cmd_context *cmd __attribute__((unused)), struct arg_values *av)
{
char *ptr;

1
tools/tools.h
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@ -144,6 +144,7 @@ int size_kb_arg(struct cmd_context *cmd, struct arg_values *av);
int size_mb_arg(struct cmd_context *cmd, struct arg_values *av);
int size_mb_arg_with_percent(struct cmd_context *cmd, struct arg_values *av);
int int_arg(struct cmd_context *cmd, struct arg_values *av);
int uint32_arg(struct cmd_context *cmd, struct arg_values *av);
int int_arg_with_sign(struct cmd_context *cmd, struct arg_values *av);
int int_arg_with_sign_and_percent(struct cmd_context *cmd, struct arg_values *av);
int major_arg(struct cmd_context *cmd, struct arg_values *av);