[PATCH] ssh-protocol version, command types, response code

diff --git a/rpush.c b/rpush.c
index 17d5ab8a60ab2ec7fa3a7dc927351e8a34de3a89..bd381ac9d1787dc979b1eba5bd72c1fd644a094b 100644 (file)
--- a/rpush.c
+++ b/rpush.c
@@ -3,46 +3,81 @@
 #include <sys/socket.h>
 #include <errno.h>
 
-static void service(int fd_in, int fd_out) {
+unsigned char local_version = 1;
+unsigned char remote_version = 0;
+
+int serve_object(int fd_in, int fd_out) {
        ssize_t size;
-       int posn;
-       char unsigned sha1[20];
+       int posn = 0;
+       char sha1[20];
        unsigned long objsize;
        void *buf;
+       signed char remote;
+       do {
+               size = read(fd_in, sha1 + posn, 20 - posn);
+               if (size < 0) {
+                       perror("git-rpush: read ");
+                       return -1;
+               }
+               if (!size)
+                       return -1;
+               posn += size;
+       } while (posn < 20);
+       
+       /* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
+       remote = 0;
+       
+       buf = map_sha1_file(sha1, &objsize);
+       
+       if (!buf) {
+               fprintf(stderr, "git-rpush: could not find %s\n", 
+                       sha1_to_hex(sha1));
+               remote = -1;
+       }
+       
+       write(fd_out, &remote, 1);
+       
+       if (remote < 0)
+               return 0;
+       
+       posn = 0;
        do {
-               posn = 0;
-               do {
-                       size = read(fd_in, sha1 + posn, 20 - posn);
-                       if (size < 0) {
-                               perror("git-rpush: read ");
-                               return;
+               size = write(fd_out, buf + posn, objsize - posn);
+               if (size <= 0) {
+                       if (!size) {
+                               fprintf(stderr, "git-rpush: write closed");
+                       } else {
+                               perror("git-rpush: write ");
                        }
-                       if (!size)
-                               return;
-                       posn += size;
-               } while (posn < 20);
+                       return -1;
+               }
+               posn += size;
+       } while (posn < objsize);
+       return 0;
+}
 
-               /* fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1)); */
+int serve_version(int fd_in, int fd_out)
+{
+       if (read(fd_in, &remote_version, 1) < 1)
+               return -1;
+       write(fd_out, &local_version, 1);
+       return 0;
+}
 
-               buf = map_sha1_file(sha1, &objsize);
-               if (!buf) {
-                       fprintf(stderr, "git-rpush: could not find %s\n", 
-                               sha1_to_hex(sha1));
+void service(int fd_in, int fd_out) {
+       char type;
+       int retval;
+       do {
+               retval = read(fd_in, &type, 1);
+               if (retval < 1) {
+                       if (retval < 0)
+                               perror("rpush: read ");
                        return;
                }
-               posn = 0;
-               do {
-                       size = write(fd_out, buf + posn, objsize - posn);
-                       if (size <= 0) {
-                               if (!size) {
-                                       fprintf(stderr, "git-rpush: write closed");
-                               } else {
-                                       perror("git-rpush: write ");
-                               }
-                               return;
-                       }
-                       posn += size;
-               } while (posn < objsize);
+               if (type == 'v' && serve_version(fd_in, fd_out))
+                       return;
+               if (type == 'o' && serve_object(fd_in, fd_out))
+                       return;
        } while (1);
 }
 
@@ -56,7 +91,7 @@ int main(int argc, char **argv)
                 arg++;
         }
         if (argc < arg + 2) {
-                usage("git-rpush [-c] [-t] [-a] commit-id url");
+               usage("git-rpush [-c] [-t] [-a] commit-id url");
                 return 1;
         }
        commit_id = argv[arg];