Add _c versions of functions that otherwise return static buffers

We have a habit of returning static buffers from some functions,
particularly when generating some kind of string values.  This is
convenient in terms of memory management, but it comes at the expense
of not being thread-safe, and not allowing for two calls of the
related function within one printf() statement.

Let's introduce _c suffix versions of those functions where the
caller passes in a talloc context from which the output buffer shall
be allocated.

Change-Id: I8481c19b68ff67cfa22abb93c405ebcfcb0ab19b

1 files changed, 2 insertions, 0 deletions

diff --git a/include/osmocom/gsm/gsm48.h b/include/osmocom/gsm/gsm48.h
index 81b2bf0d..786fbc9e 100644
--- a/include/osmocom/gsm/gsm48.h
+++ b/include/osmocom/gsm/gsm48.h
@@ -36,6 +36,7 @@ const char *gsm48_rr_msg_name(uint8_t msgtype);
 const char *rr_cause_name(uint8_t cause);
 const char *osmo_rai_name(const struct gprs_ra_id *rai);
 char *osmo_rai_name_buf(char *buf, size_t buf_len, const struct gprs_ra_id *rai);
+char *osmo_rai_name_c(const void *ctx, const struct gprs_ra_id *rai);
 
 int gsm48_decode_lai(struct gsm48_loc_area_id *lai, uint16_t *mcc,
 		     uint16_t *mnc, uint16_t *lac)
@@ -57,6 +58,7 @@ int gsm48_mi_to_string(char *string, const int str_len,
 const char *gsm48_mi_type_name(uint8_t mi);
 const char *osmo_mi_name(const uint8_t *mi, uint8_t mi_len);
 char *osmo_mi_name_buf(char *buf, size_t buf_len, const uint8_t *mi, uint8_t mi_len);
+char *osmo_mi_name_c(const void *ctx, const uint8_t *mi, uint8_t mi_len);
 
 /* Parse Routeing Area Identifier */
 void gsm48_parse_ra(struct gprs_ra_id *raid, const uint8_t *buf);