X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=connect.c;h=c2badc71aa2ccf63fa6d9ef02a5ee76feb54e5c9;hb=1f5881bb5f4da97d0bb23024ae91079137326c7e;hp=a6657b13848b5474ffde7edb0ad60ed969f22852;hpb=f69714c38c6f3296a4bfba0d057e0f1605373f49;p=git.git

diff --git a/connect.c b/connect.c
index a6657b13..c2badc71 100644
--- a/connect.c
+++ b/connect.c
@@ -1,16 +1,20 @@
 #include "cache.h"
 #include "pkt-line.h"
 #include "quote.h"
+#include "refs.h"
 #include <sys/wait.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <netdb.h>
 
+static char *server_capabilities = NULL;
+
 /*
  * Read all the refs from the other end
  */
-struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match)
+struct ref **get_remote_heads(int in, struct ref **list,
+			      int nr_match, char **match, int ignore_funny)
 {
 	*list = NULL;
 	for (;;) {
@@ -18,7 +22,7 @@ struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **ma
 		unsigned char old_sha1[20];
 		static char buffer[1000];
 		char *name;
-		int len;
+		int len, name_len;
 
 		len = packet_read_line(in, buffer, sizeof(buffer));
 		if (!len)
@@ -29,6 +33,18 @@ struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **ma
 		if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ')
 			die("protocol error: expected sha/ref, got '%s'", buffer);
 		name = buffer + 41;
+
+		if (ignore_funny && 45 < len && !memcmp(name, "refs/", 5) &&
+		    check_ref_format(name + 5))
+			continue;
+
+		name_len = strlen(name);
+		if (len != name_len + 41) {
+			if (server_capabilities)
+				free(server_capabilities);
+			server_capabilities = strdup(name + name_len + 1);
+		}
+
 		if (nr_match && !path_match(name, nr_match, match))
 			continue;
 		ref = xcalloc(1, sizeof(*ref) + len - 40);
@@ -40,6 +56,12 @@ struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **ma
 	return list;
 }
 
+int server_supports(const char *feature)
+{
+	return server_capabilities &&
+		strstr(server_capabilities, feature) != NULL;
+}
+
 int get_ack(int fd, unsigned char *result_sha1)
 {
 	static char line[1000];
@@ -52,8 +74,11 @@ int get_ack(int fd, unsigned char *result_sha1)
 	if (!strcmp(line, "NAK"))
 		return 0;
 	if (!strncmp(line, "ACK ", 3)) {
-		if (!get_sha1_hex(line+4, result_sha1))
+		if (!get_sha1_hex(line+4, result_sha1)) {
+			if (strstr(line+45, "continue"))
+				return 2;
 			return 1;
+		}
 	}
 	die("git-fetch_pack: expected ACK/NAK, got '%s'", line);
 }
@@ -82,15 +107,26 @@ int path_match(const char *path, int nr, char **match)
 struct refspec {
 	char *src;
 	char *dst;
+	char force;
 };
 
+/*
+ * A:B means fast forward remote B with local A.
+ * +A:B means overwrite remote B with local A.
+ * +A is a shorthand for +A:A.
+ * A is a shorthand for A:A.
+ */
 static struct refspec *parse_ref_spec(int nr_refspec, char **refspec)
 {
 	int i;
-	struct refspec *rs = xmalloc(sizeof(*rs) * (nr_refspec + 1));
+	struct refspec *rs = xcalloc(sizeof(*rs), (nr_refspec + 1));
 	for (i = 0; i < nr_refspec; i++) {
 		char *sp, *dp, *ep;
 		sp = refspec[i];
+		if (*sp == '+') {
+			rs[i].force = 1;
+			sp++;
+		}
 		ep = strchr(sp, ':');
 		if (ep) {
 			dp = ep + 1;
@@ -216,8 +252,10 @@ static int match_explicit_refs(struct ref *src, struct ref *dst,
 			error("dst ref %s receives from more than one src.",
 			      matched_dst->name);
 		}
-		else
+		else {
 			matched_dst->peer_ref = matched_src;
+			matched_dst->force = rs[i].force;
+		}
 	}
 	return -errs;
 }
@@ -271,12 +309,18 @@ static enum protocol get_protocol(const char *name)
 		return PROTO_SSH;
 	if (!strcmp(name, "git"))
 		return PROTO_GIT;
+	if (!strcmp(name, "git+ssh"))
+		return PROTO_SSH;
+	if (!strcmp(name, "ssh+git"))
+		return PROTO_SSH;
 	die("I don't handle protocol '%s'", name);
 }
 
 #define STR_(s)	# s
 #define STR(s)	STR_(s)
 
+#ifndef NO_IPV6
+
 static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path)
 {
 	int sockfd = -1;
@@ -333,6 +377,77 @@ static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path)
 	return 0;
 }
 
+#else /* NO_IPV6 */
+
+static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path)
+{
+	int sockfd = -1;
+	char *colon, *end;
+	char *port = STR(DEFAULT_GIT_PORT), *ep;
+	struct hostent *he;
+	struct sockaddr_in sa;
+	char **ap;
+	unsigned int nport;
+
+	if (host[0] == '[') {
+		end = strchr(host + 1, ']');
+		if (end) {
+			*end = 0;
+			end++;
+			host++;
+		} else
+			end = host;
+	} else
+		end = host;
+	colon = strchr(end, ':');
+
+	if (colon) {
+		*colon = 0;
+		port = colon + 1;
+	}
+
+
+	he = gethostbyname(host);
+	if (!he)
+		die("Unable to look up %s (%s)", host, hstrerror(h_errno));
+	nport = strtoul(port, &ep, 10);
+	if ( ep == port || *ep ) {
+		/* Not numeric */
+		struct servent *se = getservbyname(port,"tcp");
+		if ( !se )
+			die("Unknown port %s\n", port);
+		nport = se->s_port;
+	}
+
+	for (ap = he->h_addr_list; *ap; ap++) {
+		sockfd = socket(he->h_addrtype, SOCK_STREAM, 0);
+		if (sockfd < 0)
+			continue;
+
+		memset(&sa, 0, sizeof sa);
+		sa.sin_family = he->h_addrtype;
+		sa.sin_port = htons(nport);
+		memcpy(&sa.sin_addr, ap, he->h_length);
+
+		if (connect(sockfd, (struct sockaddr *)&sa, sizeof sa) < 0) {
+			close(sockfd);
+			sockfd = -1;
+			continue;
+		}
+		break;
+	}
+
+	if (sockfd < 0)
+		die("unable to connect a socket (%s)", strerror(errno));
+
+	fd[0] = sockfd;
+	fd[1] = sockfd;
+	packet_write(sockfd, "%s %s\n", prog, path);
+	return 0;
+}
+
+#endif /* NO_IPV6 */
+
 /*
  * Yeah, yeah, fixme. Need to pass in the heads etc.
  */
@@ -383,8 +498,10 @@ int git_connect(int fd[2], char *url, const char *prog)
 		close(pipefd[1][0]);
 		close(pipefd[1][1]);
 		if (protocol == PROTO_SSH) {
-			const char *ssh = getenv("GIT_SSH") ? : "ssh";
-			const char *ssh_basename = strrchr(ssh, '/');
+			const char *ssh, *ssh_basename;
+			ssh = getenv("GIT_SSH");
+			if (!ssh) ssh = "ssh";
+			ssh_basename = strrchr(ssh, '/');
 			if (!ssh_basename)
 				ssh_basename = ssh;
 			else