Subject: [PATCH 2/3] credential-cache: check for windows specific errors

From: Carlo Marcelo Arenas Belón <[email-masked]>
Date: Sun, 12 Sep 2021 13:28:29 -0700

Connect and reset errors aren't what will be expected by POSIX but
are compatible with the ones used by WinSock.

Alternatively a translation layer for read could be added (similar
to the one provided by mingw-write()) to translate the odd EINVAL,
into a more reasonable EPIPE, but this is more localized and still
unlikely to cause confusion in other systems.

Signed-off-by: Carlo Marcelo Arenas Belón <[email-masked]>
---
 builtin/credential-cache.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/builtin/credential-cache.c b/builtin/credential-cache.c
index 76a6ba3722..b12a79ae01 100644
--- a/builtin/credential-cache.c
+++ b/builtin/credential-cache.c
@@ -28,7 +28,8 @@ static int send_request(const char *socket, const struct strbuf *out)
 		int r;
 
 		r = read_in_full(fd, in, sizeof(in));
-		if (r == 0 || (r < 0 && errno == ECONNRESET))
+		if (r == 0 ||
+			(r < 0 && (errno == ECONNRESET || errno == EINVAL)))
 			break;
 		if (r < 0)
 			die_errno("read error from cache daemon");
@@ -75,7 +76,7 @@ static void do_cache(const char *socket, const char *action, int timeout,
 	}
 
 	if (send_request(socket, &buf) < 0) {
-		if (errno != ENOENT && errno != ECONNREFUSED)
+		if (errno != ENOENT && errno != ECONNREFUSED && errno != ENETDOWN)
 			die_errno("unable to connect to cache daemon");
 		if (flags & FLAG_SPAWN) {
 			spawn_daemon(socket);
-- 
2.33.0.481.g26d3bed244