Unified unknown ticker definition

Author: apaillier-ledger

src/network.c

@@ -6,7 +6,7 @@
 #include "shared_context.h"
 #include "common_utils.h"
 
-static const char *unknown_ticker = "???";
+const char g_unknown_ticker[] = "???";
 
 // Mapping of chain ids to networks.
 static const network_info_t NETWORK_MAPPING[] = {
@@ -180,7 +180,7 @@ const char *get_displayable_ticker(const uint64_t *chain_id, const chain_config_
         if (*chain_id == chain_cfg->chainId) {
             ticker = chain_cfg->coinName;
         } else {
-            ticker = unknown_ticker;
+            ticker = g_unknown_ticker;
         }
     }
     return ticker;

src/network.h

@@ -24,6 +24,7 @@ typedef struct network_info_s {
     } while (0)
 
 extern network_info_t DYNAMIC_NETWORK_INFO[];
+extern const char g_unknown_ticker[];
 
 const char *get_network_name_from_chain_id(const uint64_t *chain_id);
 const char *get_network_ticker_from_chain_id(const uint64_t *chain_id);

src_features/signMessageEIP712/ui_logic.c

@@ -20,6 +20,7 @@
 #include "uint_common.h"
 #include "filtering.h"
 #include "trusted_name.h"
+#include "network.h"
 
 #define AMOUNT_JOIN_FLAG_TOKEN (1 << 0)
 #define AMOUNT_JOIN_FLAG_VALUE (1 << 1)
@@ -449,12 +450,14 @@ static bool ui_712_format_amount_join(void) {
         ismaxint(ui_ctx->amount.joins[ui_ctx->amount.idx].value,
                  ui_ctx->amount.joins[ui_ctx->amount.idx].value_length)) {
         strlcpy(strings.tmp.tmp, "Unlimited ", sizeof(strings.tmp.tmp));
-        strlcat(strings.tmp.tmp, (token != NULL) ? token->ticker : "???", sizeof(strings.tmp.tmp));
+        strlcat(strings.tmp.tmp,
+                (token != NULL) ? token->ticker : g_unknown_ticker,
+                sizeof(strings.tmp.tmp));
     } else {
         if (!amountToString(ui_ctx->amount.joins[ui_ctx->amount.idx].value,
                             ui_ctx->amount.joins[ui_ctx->amount.idx].value_length,
                             (token != NULL) ? token->decimals : 0,
-                            (token != NULL) ? token->ticker : "???",
+                            (token != NULL) ? token->ticker : g_unknown_ticker,
                             strings.tmp.tmp,
                             sizeof(strings.tmp.tmp))) {
             return false;