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#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"
char *strndup(const char *s, size_t n)
{
/* this assumes s is NUL terminated - if not,
* some silly value will be returned */
size_t len = strlen(s);
char *res;
/* limit to n */
if (len > n || n == 0)
len = n;
res = (char *) malloc(len + 1);
if (res == NULL)
return NULL;
res[len] = '\0';
return (char *) memcpy(res, s, len);
}
/**
* Convert raw font units to units normalised with a design size of 1000
*
* \param raw Raw value from file
* \param ppem Design size of font
* \return Converted value
*/
long convert_units(long raw, long ppem)
{
if (ppem == 1000)
return raw;
return (raw * 1000) / ppem;
}
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