rework langinfo code for ABI compat and for use by time code

[musl] / src / network / dn_skipname.c

#include <resolv.h>

int dn_skipname(const unsigned char *s, const unsigned char *end)
{
        const unsigned char *p;
        for (p=s; p<end; p++)
                if (!*p) return p-s+1;
                else if (*p>=192)
                        if (p+1<end) return p-s+2;
                        else break;
        return -1;
}