termdesc: set up termversion #1798, print in banners

src/lib/internal.h

@@ -594,16 +594,8 @@ void sigwinch_handler(int signo);
 
 void init_lang(void);
 
-// load |ti| from the terminfo database, which must already have been
-// initialized. set |utf8| if we've verified UTF8 output encoding.
-// set |noaltscreen| to inhibit alternate screen detection. |fd| ought
-// be connected to a terminal device, or -1 if no terminal is available.
-int interrogate_terminfo(tinfo* ti, int fd, const char* termname, unsigned utf8,
-                         unsigned noaltscreen, unsigned nocbreak);
-int term_supported_styles(const tinfo* ti);
 int reset_term_attributes(const tinfo* ti, FILE* fp);
 
-void free_terminfo_cache(tinfo* ti);
 
 // if there were missing elements we wanted from terminfo, bitch about them here
 void warn_terminfo(const notcurses* nc, const tinfo* ti);

src/lib/notcurses.c

@@ -876,7 +876,8 @@ init_banner(const notcurses* nc){
     char prefixbuf[BPREFIXSTRLEN + 1];
     term_fg_palindex(nc, stdout, 50 % nc->tcache.caps.colors);
     printf("\n notcurses %s by nick black et al", notcurses_version());
-    printf(" on %s", nc->tcache.termname ? nc->tcache.termname : "?");
+    printf(" on %s %s", nc->tcache.termname ? nc->tcache.termname : "?",
+                        nc->tcache.termversion ? nc->tcache.termversion : "");
     term_fg_palindex(nc, stdout, 12 % nc->tcache.caps.colors);
     if(nc->tcache.cellpixy && nc->tcache.cellpixx){
       printf("\n  %d rows (%dpx) %d cols (%dpx) (%sB) %zuB crend %d colors",

src/lib/termdesc.c

@@ -107,8 +107,9 @@ match_termname(const char* termname, queried_terminals_e* qterm){
 }
 
 void free_terminfo_cache(tinfo* ti){
-  free(ti->esctable);
   ncinputlayer_stop(&ti->input);
+  free(ti->termversion);
+  free(ti->esctable);
 }
 
 // tlen -- size of escape table. tused -- used bytes in same.
@@ -505,5 +506,6 @@ int interrogate_terminfo(tinfo* ti, int fd, const char* termname, unsigned utf8,
 
 err:
   free(ti->esctable);
+  free(ti->termversion);
   return -1;
 }

src/lib/termdesc.h

@@ -144,6 +144,7 @@ typedef struct tinfo {
   int (*pixel_clear_all)(int fd); // called during startup, kitty only
   int sprixel_scale_height; // sprixel must be a multiple of this many rows
   const char* termname;     // terminal name from environment variables/init
+  char* termversion;        // terminal version (freeform) from query responses
   struct termios tpreserved; // terminal state upon entry
   ncinputlayer input;       // input layer
   bool bitmap_supported;    // do we support bitmaps (post pixel_query_done)?
@@ -170,6 +171,15 @@ term_supported_styles(const tinfo* ti){
   return ti->supported_styles;
 }
 
+// load |ti| from the terminfo database, which must already have been
+// initialized. set |utf8| if we've verified UTF8 output encoding.
+// set |noaltscreen| to inhibit alternate screen detection. |fd| ought
+// be connected to a terminal device, or -1 if no terminal is available.
+int interrogate_terminfo(tinfo* ti, int fd, const char* termname, unsigned utf8,
+                         unsigned noaltscreen, unsigned nocbreak);
+
+void free_terminfo_cache(tinfo* ti);
+
 #ifdef __cplusplus
 }
 #endif