slp_add_header
err = slp_add_header(lang, *msg, msgLen, ATTRRQST, msgLen, &len);
err = slp_add_header(lang, *msg, msgLen, SRVRQST, msgLen, &len);
if ((err = slp_add_header(hp->locale, m, msgLen, SRVREG, 0, &len))
if ((err = slp_add_header(
extern SLPError slp_add_header(const char *, char *, size_t, int,
if ((err = slp_add_header(hp->locale, header, mtu,