[PATCH 3/4] git_connect: allow a file descriptor to be allocated for stderr

[Mike Hommey <mh@glandium.org>]

It can be useful to the caller of git_connect() to get access to stderr,
so add a flag that makes start_command allocate a file descriptor for
it.

Signed-off-by: Mike Hommey <mh@glandium.org>
---
 connect.c | 2 ++
 connect.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/connect.c b/connect.c
index 919bf9e..9feedd8 100644
--- a/connect.c
+++ b/connect.c
@@ -764,6 +764,8 @@ struct child_process *git_connect(int fd[2], const char *url,
 		conn->env = local_repo_env;
 		conn->use_shell = 1;
 		conn->in = conn->out = -1;
+		if (flags & CONNECT_WANT_STDERR)
+			conn->err = -1;
 		if (protocol == PROTO_SSH) {
 			const char *ssh;
 			int putty = 0, tortoiseplink = 0;
diff --git a/connect.h b/connect.h
index 01f14cd..fb3331b 100644
--- a/connect.h
+++ b/connect.h
@@ -5,6 +5,7 @@
 #define CONNECT_DIAG_URL      (1u << 1)
 #define CONNECT_IPV4          (1u << 2)
 #define CONNECT_IPV6          (1u << 3)
+#define CONNECT_WANT_STDERR   (1u << 4)
 extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
 extern int finish_connect(struct child_process *conn);
 extern int git_connection_is_socket(struct child_process *conn);
-- 
2.8.1.5.g18c8a48