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Adds function str2uint() to convert string to uint16_t with checks for valid input.

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This commit is contained in:
Zdenek Styblik 2012-01-25 14:57:12 +00:00
parent 7dd969f2c6
commit e0b75fba8c
1 changed files with 24 additions and 0 deletions
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24
ipmitool/lib/helper.c
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@ -247,6 +247,30 @@ int str2short(const char * str, int16_t * shrt_ptr)
return 0;
} /* str2short(...) */
/* str2ushort - safely convert string to uint16_t
*
* @str: source string to convert from
* @ushrt_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 str2ushort(const char * str, uint16_t * ushrt_ptr)
{
int rc = (-3);
uint64_t arg_ulong = 0;
if ( (rc = str2ulong(str, &arg_ulong)) != 0 ) {
*ushrt_ptr = 0;
return rc;
}
if (arg_ulong > UINT16_MAX)
return (-3);
*ushrt_ptr = (uint16_t)arg_ulong;
return 0;
} /* str2ushort(...) */
/* str2uchar - safely convert string to uint8
*
* @str: source string to convert from