X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=ssh-push.c;h=ee424a8712fad002f0a6962c3b7067fe25aed91a;hb=bfe19f876cb20bea606e1a698030c017f31965c1;hp=9994ea7fc098468976c4a95daf972f796d88793b;hpb=418aaf847a8b3ffffb4f777a2dd5262ca5ce0ef7;p=git.git

diff --git a/ssh-push.c b/ssh-push.c
index 9994ea7f..ee424a87 100644
--- a/ssh-push.c
+++ b/ssh-push.c
@@ -1,18 +1,19 @@
 #include "cache.h"
 #include "rsh.h"
-#include <sys/socket.h>
-#include <errno.h>
+#include "refs.h"
 
-unsigned char local_version = 1;
-unsigned char remote_version = 0;
+#include <string.h>
 
-int serve_object(int fd_in, int fd_out) {
+static unsigned char local_version = 1;
+static unsigned char remote_version = 0;
+
+static int verbose = 0;
+
+static int serve_object(int fd_in, int fd_out) {
 	ssize_t size;
-	int posn = 0;
-	char sha1[20];
-	unsigned long objsize;
-	void *buf;
+	unsigned char sha1[20];
 	signed char remote;
+	int posn = 0;
 	do {
 		size = read(fd_in, sha1 + posn, 20 - posn);
 		if (size < 0) {
@@ -24,12 +25,12 @@ int serve_object(int fd_in, int fd_out) {
 		posn += size;
 	} while (posn < 20);
 	
-	/* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
+	if (verbose)
+		fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1));
+
 	remote = 0;
 	
-	buf = map_sha1_file(sha1, &objsize);
-	
-	if (!buf) {
+	if (!has_sha1_file(sha1)) {
 		fprintf(stderr, "git-ssh-push: could not find %s\n", 
 			sha1_to_hex(sha1));
 		remote = -1;
@@ -40,23 +41,10 @@ int serve_object(int fd_in, int fd_out) {
 	if (remote < 0)
 		return 0;
 	
-	posn = 0;
-	do {
-		size = write(fd_out, buf + posn, objsize - posn);
-		if (size <= 0) {
-			if (!size) {
-				fprintf(stderr, "git-ssh-push: write closed");
-			} else {
-				perror("git-ssh-push: write ");
-			}
-			return -1;
-		}
-		posn += size;
-	} while (posn < objsize);
-	return 0;
+	return write_sha1_to_fd(fd_out, sha1);
 }
 
-int serve_version(int fd_in, int fd_out)
+static int serve_version(int fd_in, int fd_out)
 {
 	if (read(fd_in, &remote_version, 1) < 1)
 		return -1;
@@ -64,7 +52,32 @@ int serve_version(int fd_in, int fd_out)
 	return 0;
 }
 
-void service(int fd_in, int fd_out) {
+static int serve_ref(int fd_in, int fd_out)
+{
+	char ref[PATH_MAX];
+	unsigned char sha1[20];
+	int posn = 0;
+	signed char remote = 0;
+	do {
+		if (read(fd_in, ref + posn, 1) < 1)
+			return -1;
+		posn++;
+	} while (ref[posn - 1]);
+
+	if (verbose)
+		fprintf(stderr, "Serving %s\n", ref);
+
+	if (get_ref_sha1(ref, sha1))
+		remote = -1;
+	write(fd_out, &remote, 1);
+	if (remote)
+		return 0;
+	write(fd_out, sha1, 20);
+        return 0;
+}
+
+
+static void service(int fd_in, int fd_out) {
 	char type;
 	int retval;
 	do {
@@ -78,25 +91,39 @@ void service(int fd_in, int fd_out) {
 			return;
 		if (type == 'o' && serve_object(fd_in, fd_out))
 			return;
+		if (type == 'r' && serve_ref(fd_in, fd_out))
+			return;
 	} while (1);
 }
 
+static const char ssh_push_usage[] =
+	"git-ssh-push [-c] [-t] [-a] [-w ref] commit-id url";
+
 int main(int argc, char **argv)
 {
 	int arg = 1;
         char *commit_id;
         char *url;
 	int fd_in, fd_out;
+	const char *prog = getenv("GIT_SSH_PULL") ? : "git-ssh-pull";
+	unsigned char sha1[20];
+	char hex[41];
+
 	while (arg < argc && argv[arg][0] == '-') {
+		if (argv[arg][1] == 'w')
+			arg++;
                 arg++;
         }
-        if (argc < arg + 2) {
-		usage("git-ssh-push [-c] [-t] [-a] commit-id url");
-                return 1;
-        }
+	if (argc < arg + 2)
+		usage(ssh_push_usage);
 	commit_id = argv[arg];
 	url = argv[arg + 1];
-	if (setup_connection(&fd_in, &fd_out, "git-ssh-pull", url, arg, argv + 1))
+	if (get_sha1(commit_id, sha1))
+		usage(ssh_push_usage);
+	memcpy(hex, sha1_to_hex(sha1), sizeof(hex));
+	argv[arg] = hex;
+
+	if (setup_connection(&fd_in, &fd_out, prog, url, arg, argv + 1))
 		return 1;
 
 	service(fd_in, fd_out);