1 files changed, 25 insertions, 3 deletions

diff --git a/src/nvim/tui/terminfo.c b/src/nvim/tui/terminfo.c
index 75e9a2d8da..fdc33f0a77 100644
--- a/src/nvim/tui/terminfo.c
+++ b/src/nvim/tui/terminfo.c
@@ -9,6 +9,7 @@
 #include <unibilium.h>
 
 #include "nvim/log.h"
+#include "nvim/memory.h"
 #include "nvim/tui/terminfo.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
@@ -94,51 +95,72 @@ bool terminfo_is_term_family(const char *term, const char *family)
 /// Loads a built-in terminfo db when we (unibilium) failed to load a terminfo
 /// record from the environment (termcap systems, unrecognized $TERM, …).
 /// We do not attempt to detect xterm pretenders here.
-static unibi_term *terminfo_builtin(const char *term)
+///
+/// @param term $TERM value
+/// @param[out,allocated] termname decided builtin 'term' name
+/// @return [allocated] terminfo structure
+static unibi_term *terminfo_builtin(const char *term, char **termname)
 {
   if (terminfo_is_term_family(term, "xterm")) {
+    *termname = xstrdup("builtin_xterm");
     return unibi_from_mem((const char *)xterm_256colour_terminfo,
                           sizeof xterm_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "screen")) {
+    *termname = xstrdup("builtin_screen");
     return unibi_from_mem((const char *)screen_256colour_terminfo,
                           sizeof screen_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "tmux")) {
+    *termname = xstrdup("builtin_tmux");
     return unibi_from_mem((const char *)tmux_256colour_terminfo,
                           sizeof tmux_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "rxvt")) {
+    *termname = xstrdup("builtin_rxvt");
     return unibi_from_mem((const char *)rxvt_256colour_terminfo,
                           sizeof rxvt_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "putty")) {
+    *termname = xstrdup("builtin_putty");
     return unibi_from_mem((const char *)putty_256colour_terminfo,
                           sizeof putty_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "linux")) {
+    *termname = xstrdup("builtin_linux");
     return unibi_from_mem((const char *)linux_16colour_terminfo,
                           sizeof linux_16colour_terminfo);
   } else if (terminfo_is_term_family(term, "interix")) {
+    *termname = xstrdup("builtin_interix");
     return unibi_from_mem((const char *)interix_8colour_terminfo,
                           sizeof interix_8colour_terminfo);
   } else if (terminfo_is_term_family(term, "iterm")
              || terminfo_is_term_family(term, "iterm2")
              || terminfo_is_term_family(term, "iTerm.app")
              || terminfo_is_term_family(term, "iTerm2.app")) {
+    *termname = xstrdup("builtin_iterm");
     return unibi_from_mem((const char *)iterm_256colour_terminfo,
                           sizeof iterm_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "st")) {
+    *termname = xstrdup("builtin_st");
     return unibi_from_mem((const char *)st_256colour_terminfo,
                           sizeof st_256colour_terminfo);
   } else if (terminfo_is_term_family(term, "gnome")
              || terminfo_is_term_family(term, "vte")) {
+    *termname = xstrdup("builtin_vte");
     return unibi_from_mem((const char *)vte_256colour_terminfo,
                           sizeof vte_256colour_terminfo);
   } else {
+    *termname = xstrdup("builtin_ansi");
     return unibi_from_mem((const char *)ansi_terminfo,
                           sizeof ansi_terminfo);
   }
 }
 
-unibi_term *terminfo_from_builtin(const char *term)
+/// @param term $TERM value
+/// @param[out,allocated] termname decided builtin 'term' name
+/// @return [allocated] terminfo structure
+unibi_term *terminfo_from_builtin(const char *term, char **termname)
 {
-  unibi_term *ut = terminfo_builtin(term);
+  unibi_term *ut = terminfo_builtin(term, termname);
+  if (*termname == NULL) {
+    *termname = xstrdup("builtin_?");
+  }
   // Disable BCE by default (for built-in terminfos). #7624
   // https://github.com/kovidgoyal/kitty/issues/160#issuecomment-346470545
   unibi_set_bool(ut, unibi_back_color_erase, false);