X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/8c90957ff59a6030160676208f6c89c5476cb30f..d051056f921f465c487a85f9fa29a2324332bc4b:/pipe.c diff --git a/pipe.c b/pipe.c index 2225cc6d..84706085 100644 --- a/pipe.c +++ b/pipe.c @@ -24,12 +24,12 @@ extern int am_sender; extern int am_server; extern int blocking_io; -extern int orig_umask; -extern int write_batch; extern int filesfrom_fd; +extern mode_t orig_umask; +extern struct chmod_mode_struct *chmod_modes; /** - * Create a child connected to use on stdin/stdout. + * Create a child connected to us via its stdin/stdout. * * This is derived from CVS code * @@ -94,8 +94,7 @@ pid_t piped_child(char **command, int *f_in, int *f_out) return pid; } -/* - * This function forks a child which calls child_main(). First, +/* This function forks a child which calls child_main(). First, * however, it has to establish communication paths to and from the * newborn child. It creates two socket pairs -- one for writing to * the child (from the parent) and one for reading from the child @@ -104,8 +103,7 @@ pid_t piped_child(char **command, int *f_in, int *f_out) * two socket ends are retained for reading and writing. In the * child, the STDIN and STDOUT file descriptors refer to these * sockets. In the parent, the function arguments f_in and f_out are - * set to refer to these sockets. - */ + * set to refer to these sockets. */ pid_t local_child(int argc, char **argv, int *f_in, int *f_out, int (*child_main)(int, char*[])) { @@ -113,30 +111,26 @@ pid_t local_child(int argc, char **argv, int *f_in, int *f_out, int to_child_pipe[2]; int from_child_pipe[2]; + /* The parent process is always the sender for a local rsync. */ + assert(am_sender); + if (fd_pair(to_child_pipe) < 0 || fd_pair(from_child_pipe) < 0) { rsyserr(FERROR, errno, "pipe"); exit_cleanup(RERR_IPC); } - /* For read-batch, don't even fork. */ pid = do_fork(); - if (pid == -1) { rsyserr(FERROR, errno, "fork"); exit_cleanup(RERR_IPC); } if (pid == 0) { - am_sender = !am_sender; + am_sender = 0; am_server = 1; - - /* The server side never writes the batch, even if it - * is local (it makes the logic easier elsewhere). */ - write_batch = 0; - - if (!am_sender) - filesfrom_fd = -1; + filesfrom_fd = -1; + chmod_modes = NULL; /* Let the sending side handle this. */ if (dup2(to_child_pipe[0], STDIN_FILENO) < 0 || close(to_child_pipe[1]) < 0 || @@ -152,9 +146,6 @@ pid_t local_child(int argc, char **argv, int *f_in, int *f_out, child_main(argc, argv); } - if (!am_sender) - filesfrom_fd = -1; - if (close(from_child_pipe[1]) < 0 || close(to_child_pipe[0]) < 0) { rsyserr(FERROR, errno, "Failed to close");