git: 964557fe9807 - main - mail: exit with the correct exit status on SIGHUP in send mode

The branch main has been updated by kevans:

URL: https://cgit.FreeBSD.org/src/commit/?id=964557fe9807d473ad11182a332b0d1da4f54ef0

commit 964557fe9807d473ad11182a332b0d1da4f54ef0
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2025-05-14 19:20:16 +0000
Commit:     Kyle Evans <kevans@FreeBSD.org>
CommitDate: 2025-05-14 19:20:35 +0000

    mail: exit with the correct exit status on SIGHUP in send mode
    
    Motivated by POSIX conformance requirements: mailx(1) is expected to
    take the default action for every signal except SIGINT in interactive
    mode.  We still handle other signals that we shouldn't based on the
    spec (e.g., SIGTSTP), but conforming there is not as straightforward as
    we do more than just cleanup in response.
    
    Note that when the spec says that we must take the default action, it
    does not mean so strictly.  Namely, we *can* do some sensible cleanup
    if we'd like, but we enter into nonconformant territory if we don't
    reflect the termination via signal in our exit status.  That is why
    this change doesn't actually remove the handler; we're still conformant
    as long as the end result is the same as if we took the default action.
    
    Reviewed by:    des
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D50251
---
 usr.bin/mail/collect.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.bin/mail/collect.c b/usr.bin/mail/collect.c
index 2423bcf7b262..97c4d499ea3a 100644
--- a/usr.bin/mail/collect.c
+++ b/usr.bin/mail/collect.c
@@ -698,7 +698,7 @@ collint(int s __unused)
 
 /*ARGSUSED*/
 void
-collhup(int s __unused)
+collhup(int signo)
 {
 	rewind(collf);
 	savedeadletter(collf);
@@ -706,7 +706,8 @@ collhup(int s __unused)
 	 * Let's pretend nobody else wants to clean up,
 	 * a true statement at this time.
 	 */
-	exit(1);
+	signal(signo, SIG_DFL);
+	raise(signo);
 }
 
 void