#include <errno.h>
#include <stdlib.h>
#include <math.h>

int
cli_parse_ufloat(const char *s, float *out)
{
	char *end;

	if (NULL == s || '\0' == *s)
		return 1;

	errno = 0;
	float v = strtof(s, &end);

	if (s == end || ERANGE == errno || '\0' != *end || 0 == isfinite(v) || v < 0.0f)
		return 1;

	*out = v;
	return 0;
}