gsm: Add APN conversion functions
These functions are currently part of openbsc but also needed by
other projects.
The function have been renamed as follows:
gprs_apn_to_str -> osmo_apn_to_str
gprs_str_to_apn -> osmo_apn_from_str
Sponsored-by: On-Waves ehf
diff --git a/include/osmocom/gsm/apn.h b/include/osmocom/gsm/apn.h
index a256d97..b4ece3a 100644
--- a/include/osmocom/gsm/apn.h
+++ b/include/osmocom/gsm/apn.h
@@ -14,3 +14,6 @@
* static buffer. */
char *osmo_apn_qualify_from_imsi(const char *imsi,
const char *ni, int have_3dig_mnc);
+
+int osmo_apn_from_str(uint8_t *apn_enc, size_t max_apn_enc_len, const char *str);
+char * osmo_apn_to_str(char *out_str, const uint8_t *apn_enc, size_t apn_enc_len);