Function strfcpy

util/generic/strfcpy.cpp:31–50

* Copy string src to buffer dst of size dsize. At most dsize-1 * chars will be copied. Always NUL terminates (unless dsize == 0). */

 * chars will be copied.  Always NUL terminates (unless dsize == 0).
 */
void strfcpy(char* dst, const char* src, size_t dsize)
{
    size_t nleft = dsize;

    /* Copy as many bytes as will fit. */
    if (nleft != 0) {
        while (--nleft != 0) {
            if ((*dst++ = *src++) == '\0') {
                break;
            }
        }
    }

    /* Not enough room in dst, add NUL */
    if (nleft == 0) {
        if (dsize != 0) {
            *dst = '\0'; /* NUL-terminate dst */
        }
    }
}