short i/o: fix calls to read to use xread or read_in_full

[thirdparty/git.git] / ssh-fetch.c

diff --git a/ssh-fetch.c b/ssh-fetch.c
index e3067b878e8721886c9fe61b136b46415165671d..72965d678ae4e4b2b2fc64e8979d8a9e1d3d81d0 100644 (file)
--- a/ssh-fetch.c
+++ b/ssh-fetch.c
@@ -17,14 +17,14 @@
 static int fd_in;
 static int fd_out;
 
-static unsigned char remote_version = 0;
+static unsigned char remote_version;
 static unsigned char local_version = 1;
 
 static ssize_t force_write(int fd, void *buffer, size_t length)
 {
        ssize_t ret = 0;
        while (ret < length) {
-               ssize_t size = write(fd, buffer + ret, length - ret);
+               ssize_t size = write(fd, (char *) buffer + ret, length - ret);
                if (size < 0) {
                        return size;
                }
@@ -36,9 +36,9 @@ static ssize_t force_write(int fd, void *buffer, size_t length)
        return ret;
 }
 
-static int prefetches = 0;
+static int prefetches;
 
-static struct object_list *in_transit = NULL;
+static struct object_list *in_transit;
 static struct object_list **end_of_transit = &in_transit;
 
 void prefetch(unsigned char *sha1)
@@ -59,7 +59,7 @@ void prefetch(unsigned char *sha1)
 }
 
 static char conn_buf[4096];
-static size_t conn_buf_posn = 0;
+static size_t conn_buf_posn;
 
 int fetch(unsigned char *sha1)
 {
@@ -67,8 +67,8 @@ int fetch(unsigned char *sha1)
        signed char remote;
        struct object_list *temp;
 
-       if (memcmp(sha1, in_transit->item->sha1, 20)) {
-               // we must have already fetched it to clean the queue
+       if (hashcmp(sha1, in_transit->item->sha1)) {
+               /* we must have already fetched it to clean the queue */
                return has_sha1_file(sha1) ? 0 : -1;
        }
        prefetches--;
@@ -82,10 +82,10 @@ int fetch(unsigned char *sha1)
                remote = conn_buf[0];
                memmove(conn_buf, conn_buf + 1, --conn_buf_posn);
        } else {
-               if (read(fd_in, &remote, 1) < 1)
+               if (xread(fd_in, &remote, 1) < 1)
                        return -1;
        }
-       //fprintf(stderr, "Got %d\n", remote);
+       /* fprintf(stderr, "Got %d\n", remote); */
        if (remote < 0)
                return remote;
        ret = write_sha1_from_fd(sha1, fd_in, conn_buf, 4096, &conn_buf_posn);
@@ -99,7 +99,7 @@ static int get_version(void)
        char type = 'v';
        write(fd_out, &type, 1);
        write(fd_out, &local_version, 1);
-       if (read(fd_in, &remote_version, 1) < 1) {
+       if (xread(fd_in, &remote_version, 1) < 1) {
                return error("Couldn't read version from remote end");
        }
        return 0;
@@ -111,18 +111,22 @@ int fetch_ref(char *ref, unsigned char *sha1)
        char type = 'r';
        write(fd_out, &type, 1);
        write(fd_out, ref, strlen(ref) + 1);
-       read(fd_in, &remote, 1);
+
+       if (read_in_full(fd_in, &remote, 1) != 1)
+               return -1;
        if (remote < 0)
                return remote;
-       read(fd_in, sha1, 20);
+       if (read_in_full(fd_in, sha1, 20) != 20)
+               return -1;
        return 0;
 }
 
 static const char ssh_fetch_usage[] =
   MY_PROGRAM_NAME
-  " [-c] [-t] [-a] [-v] [-d] [--recover] [-w ref] commit-id url";
+  " [-c] [-t] [-a] [-v] [--recover] [-w ref] commit-id url";
 int main(int argc, char **argv)
 {
+       const char *write_ref = NULL;
        char *commit_id;
        char *url;
        int arg = 1;
@@ -131,6 +135,7 @@ int main(int argc, char **argv)
        prog = getenv("GIT_SSH_PUSH");
        if (!prog) prog = "git-ssh-upload";
 
+       setup_ident();
        setup_git_directory();
        git_config(git_default_config);
 
@@ -159,7 +164,6 @@ int main(int argc, char **argv)
        }
        commit_id = argv[arg];
        url = argv[arg + 1];
-       write_ref_log_details = url;
 
        if (setup_connection(&fd_in, &fd_out, prog, url, arg, argv + 1))
                return 1;
@@ -167,7 +171,7 @@ int main(int argc, char **argv)
        if (get_version())
                return 1;
 
-       if (pull(commit_id))
+       if (pull(1, &commit_id, &write_ref, url))
                return 1;
 
        return 0;