X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=connect.c;h=a910af93d8ccf4305dd7e3400f4602184a7c6810;hb=e468305a954d95a26bfcdec3bc6e4bd477d95676;hp=f01b547574636d109f14c791287e6f4e52502de2;hpb=98e031f0bb6e857c684e6db24d03d22cfc1a532a;p=git.git

diff --git a/connect.c b/connect.c
index f01b5475..a910af93 100644
--- a/connect.c
+++ b/connect.c
@@ -7,6 +7,41 @@
 #include <arpa/inet.h>
 #include <netdb.h>
 
+/*
+ * Read all the refs from the other end
+ */
+struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match)
+{
+	*list = NULL;
+	for (;;) {
+		struct ref *ref;
+		unsigned char old_sha1[20];
+		static char buffer[1000];
+		char *name;
+		int len;
+
+		len = packet_read_line(in, buffer, sizeof(buffer));
+		if (!len)
+			break;
+		if (buffer[len-1] == '\n')
+			buffer[--len] = 0;
+
+		if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ')
+			die("protocol error: expected sha/ref, got '%s'", buffer);
+		name = buffer + 41;
+		if (nr_match && !path_match(name, nr_match, match))
+			continue;
+		ref = xmalloc(sizeof(*ref) + len - 40);
+		memcpy(ref->old_sha1, old_sha1, 20);
+		memset(ref->new_sha1, 0, 20);
+		memcpy(ref->name, buffer + 41, len - 40);
+		ref->next = NULL;
+		*list = ref;
+		list = &ref->next;
+	}
+	return list;
+}
+
 int get_ack(int fd, unsigned char *result_sha1)
 {
 	static char line[1000];
@@ -61,42 +96,59 @@ static enum protocol get_protocol(const char *name)
 	die("I don't handle protocol '%s'", name);
 }
 
-static void lookup_host(const char *host, struct sockaddr *in)
-{
-	struct addrinfo *res;
-	int ret;
-
-	ret = getaddrinfo(host, NULL, NULL, &res);
-	if (ret)
-		die("Unable to look up %s (%s)", host, gai_strerror(ret));
-	*in = *res->ai_addr;
-	freeaddrinfo(res);
-}
+#define STR_(s)	# s
+#define STR(s)	STR_(s)
 
 static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path)
 {
-	struct sockaddr addr;
-	int port = DEFAULT_GIT_PORT, sockfd;
-	char *colon;
+	int sockfd = -1;
+	char *colon, *end;
+	char *port = STR(DEFAULT_GIT_PORT);
+	struct addrinfo hints, *ai0, *ai;
+	int gai;
+
+	if (host[0] == '[') {
+		end = strchr(host + 1, ']');
+		if (end) {
+			*end = 0;
+			end++;
+			host++;
+		} else
+			end = host;
+	} else
+		end = host;
+	colon = strchr(end, ':');
 
-	colon = strchr(host, ':');
 	if (colon) {
-		char *end;
-		unsigned long n = strtoul(colon+1, &end, 0);
-		if (colon[1] && !*end) {
-			*colon = 0;
-			port = n;
+		*colon = 0;
+		port = colon + 1;
+	}
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_socktype = SOCK_STREAM;
+	hints.ai_protocol = IPPROTO_TCP;
+
+	gai = getaddrinfo(host, port, &hints, &ai);
+	if (gai)
+		die("Unable to look up %s (%s)", host, gai_strerror(gai));
+
+	for (ai0 = ai; ai; ai = ai->ai_next) {
+		sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+		if (sockfd < 0)
+			continue;
+		if (connect(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) {
+			close(sockfd);
+			sockfd = -1;
+			continue;
 		}
+		break;
 	}
 
-	lookup_host(host, &addr);
-	((struct sockaddr_in *)&addr)->sin_port = htons(port);
+	freeaddrinfo(ai0);
 
-	sockfd = socket(PF_INET, SOCK_STREAM, IPPROTO_IP);
 	if (sockfd < 0)
-		die("unable to create socket (%s)", strerror(errno));
-	if (connect(sockfd, (void *)&addr, sizeof(addr)) < 0)
-		die("unable to connect (%s)", strerror(errno));
+		die("unable to connect a socket (%s)", strerror(errno));
+
 	fd[0] = sockfd;
 	fd[1] = sockfd;
 	packet_write(sockfd, "%s %s\n", prog, path);