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Adds function str2uint() to convert from string to uint32_t with checks for valid input.

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This commit is contained in:
Zdenek Styblik 2012-01-26 08:22:11 +00:00
parent ca062647be
commit f681fe89b7
1 changed files with 24 additions and 0 deletions
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24
ipmitool/lib/helper.c
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@ -223,6 +223,30 @@ int str2int(const char * str, int32_t * int_ptr)
return 0;
} /* str2int(...) */
/* str2uint - safely convert string to uint32_t
*
* @str: source string to convert from
* @uint_ptr: pointer where to store result
*
* returns zero on success
* returns (-1) if one of args is NULL, (-2) invalid input, (-3) for *flow
*/
int str2uint(const char * str, uint32_t * uint_ptr)
{
int rc = 0;
uint64_t arg_ulong = 0;
if ( (rc = str2ulong(str, &arg_ulong)) != 0) {
*uint_ptr = 0;
return rc;
}
if (arg_ulong > UINT32_MAX)
return (-3);
*uint_ptr = (uint32_t)arg_ulong;
return 0;
} /* str2uint(...) */
/* str2short - safely convert string to int16_t
*
* @str: source string to convert from