PGP: Format fingerprints

src/command/commands.c

@@ -4238,7 +4238,9 @@ cmd_pgp(ProfWin *window, const char * const command, gchar **args)
             ProfPGPKey *key = g_hash_table_lookup(keys, curr->data);
             cons_show("  %s", key->name);
             cons_show("    ID          : %s", key->id);
-            cons_show("    Fingerprint : %s", key->fp);
+            char *format_fp = p_gpg_format_fp_str(key->fp);
+            cons_show("    Fingerprint : %s", format_fp);
+            free(format_fp);
             if (key->secret) {
                 cons_show("    Type        : PUBLIC, PRIVATE");
             } else {

src/pgp/gpg.c

@@ -671,6 +671,29 @@ p_gpg_autocomplete_key_reset(void)
     autocomplete_reset(key_ac);
 }
 
+char *
+p_gpg_format_fp_str(char *fp)
+{
+    if (!fp) {
+        return NULL;
+    }
+
+    GString *format = g_string_new("");
+    int i;
+    int len = strlen(fp);
+    for (i = 0; i < len; i++) {
+        g_string_append_c(format, fp[i]);
+        if (((i+1) % 4 == 0) && (i+1 < len)) {
+            g_string_append_c(format, ' ');
+        }
+    }
+
+    char *result = format->str;
+    g_string_free(format, FALSE);
+
+    return result;
+}
+
 static char*
 _remove_header_footer(char *str, const char * const footer)
 {

src/pgp/gpg.h

@@ -69,5 +69,7 @@ char* p_gpg_decrypt(const char * const cipher);
 void p_gpg_free_decrypted(char *decrypted);
 char* p_gpg_autocomplete_key(const char * const search_str);
 void p_gpg_autocomplete_key_reset(void);
+char* p_gpg_format_fp_str(char *fp);
+
 
 #endif

tests/unittests/pgp/stub_gpg.c

@@ -61,3 +61,9 @@ char * p_gpg_autocomplete_key(const char * const search_str)
     return NULL;
 }
 
+char *
+p_gpg_format_fp_str(char *fp)
+{
+    return NULL;
+}
+