commit f193439e8c4a60a961c4f5fcc9c4475da0b80201
from: Stefan Sperling <stsp@stsp.name>
date: Mon Aug 19 15:09:20 2024 UTC

fix a segfault triggered via the ! shell escape

As reported by Tom, the following input sequence would lead to a segfault:
!<space>?<tab><backspace><tab>

Resetting the cursor position in makeargv's special-case handling of
shell escapes fixes this.

tested by myself and Tom
ok Tom

commit - fd4494f6c62ce7eaa7cea7fa32df287ee211d49b
commit + f193439e8c4a60a961c4f5fcc9c4475da0b80201
blob - c1f12841615d06ed7a8cef2569d476ea0fe7c5c8
blob + d1a99c8fd75a38cab32267dd7b9b8dfd969ec858
--- makeargv.c
+++ makeargv.c
@@ -59,6 +59,8 @@ makeargv(void)
 		*argp++ = "!";	/* No room in string to get this */
 		margc++;
 		cp++;
+		cursor_argc = 0;
+		cursor_argo = 0;
 	}
 	while ((c = *cp)) {
 		int inquote = 0;