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upstream: Do not ignore SIGINT while waiting for input if editline(3) 

is not used. Instead, in non-interactive mode, exit sftp(1), like for other
serious errors. As pointed out by dtucker@, when compiled without editline(3)
support in portable OpenSSH, the el == NULL branch is also used for
interactive mode. In that case, discard the input line and provide a fresh
prompt to the user just like in the case where editline(3) is used. OK djm@

OpenBSD-Commit-ID: 7d06f4d3ebba62115527fafacf38370d09dfb393
This commit is contained in:
schwarze@openbsd.org 2021-09-11 09:05:50 +00:00 committed by Damien Miller
parent ba61123eef
commit 19b3d846f0
1 changed files with 13 additions and 10 deletions
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23
sftp.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sftp.c,v 1.211 2021/08/12 09:59:00 schwarze Exp $ */
/* $OpenBSD: sftp.c,v 1.212 2021/09/11 09:05:50 schwarze Exp $ */
/*
* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
*
@ -2204,28 +2204,31 @@ interactive_loop(struct sftp_conn *conn, char *file1, char *file2)
interactive = !batchmode && isatty(STDIN_FILENO);
err = 0;
for (;;) {
struct sigaction sa;
interrupted = 0;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = interactive ? read_interrupt : killchild;
if (sigaction(SIGINT, &sa, NULL) == -1) {
debug3("sigaction(%s): %s", strsignal(SIGINT),
strerror(errno));
break;
}
if (el == NULL) {
if (interactive)
printf("sftp> ");
if (fgets(cmd, sizeof(cmd), infile) == NULL) {
if (interactive)
printf("\n");
if (interrupted)
continue;
break;
}
} else {
#ifdef USE_LIBEDIT
const char *line;
int count = 0;
struct sigaction sa;
interrupted = 0;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = read_interrupt;
if (sigaction(SIGINT, &sa, NULL) == -1) {
debug3("sigaction(%s): %s",
strsignal(SIGINT), strerror(errno));
break;
}
if ((line = el_gets(el, &count)) == NULL ||
count <= 0) {
printf("\n");