From 45888d65ba8852dd4640bae7070eb38853400ccf Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Thu, 6 Feb 2025 13:38:02 +0100
Subject: [PATCH] config: Allow escaping quotes inside of quoted tokens

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit d1ce336ae356a843278c9608115a5a1979ac67b8)
---
 src/config_parser.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/config_parser.c b/src/config_parser.c
index bd6ab9d7..bd1b5e7a 100644
--- a/src/config_parser.c
+++ b/src/config_parser.c
@@ -82,6 +82,13 @@ char *ssh_config_get_token(char **str)
     if (*c == '\"') {
         for (r = ++c; *c; c++) {
             if (*c == '\"' || *c == '\n') {
+                if (*c == '\"' && r != c && *(c - 1) == '\\') {
+                    /* Escaped quote: Move the remaining one char left */
+                    int remaining_len = strlen(c);
+                    memmove(c - 1, c, remaining_len);
+                    c[remaining_len - 1] = '\0';
+                    continue;
+                }
                 *c = '\0';
                 c++;
                 break;