A few more --files-from fixes, and an enhanced testsuite for it.

[rsync/rsync.git] / io.c

diff --git a/io.c b/io.c
index b2b5e48..b174862 100644 (file)
--- a/io.c
+++ b/io.c
@@ -94,7 +94,8 @@ static int write_batch_monitor_in = -1;
 static int write_batch_monitor_out = -1;
 
 static int ff_forward_fd = -1;
-static char ff_lastchar;
+static int ff_reenable_multiplex = -1;
+static char ff_lastchar = '\0';
 static xbuf ff_xb = EMPTY_XBUF;
 #ifdef ICONV_OPTION
 static xbuf iconv_buf = EMPTY_XBUF;
@@ -348,8 +349,8 @@ static void forward_filesfrom_data(void)
                        ff_forward_fd = -1;
                        write_buf(iobuf.out_fd, "\0\0", ff_lastchar ? 2 : 1);
                        free_xbuf(&ff_xb);
-                       if (protocol_version == 30)
-                               io_start_multiplex_out(iobuf.out_fd);
+                       if (ff_reenable_multiplex >= 0)
+                               io_start_multiplex_out(ff_reenable_multiplex);
                }
                return;
        }
@@ -1016,13 +1017,12 @@ int get_hlink_num(void)
  * for recv_file_list() to use. */
 void start_filesfrom_forwarding(int fd)
 {
-       if (protocol_version == 30) {
-               /* Older protocols send the files-from data w/o packaging it in
-                * multiplexed I/O packets, but protocol 30 messed up and did
-                * this after starting multiplexing.  We'll temporarily switch
+       if (protocol_version < 31 && OUT_MULTIPLEXED) {
+               /* Older protocols send the files-from data w/o packaging
+                * it in multiplexed I/O packets, so temporarily switch
                 * to buffered I/O to match this behavior. */
                iobuf.msg.pos = iobuf.msg.len = 0; /* Be extra sure no messages go out. */
-               io_end_multiplex_out(MPLX_TO_BUFFERED);
+               ff_reenable_multiplex = io_end_multiplex_out(MPLX_TO_BUFFERED);
        }
        ff_forward_fd = fd;
 
@@ -1135,7 +1135,7 @@ void read_args(int f_in, char *mod_name, char *buf, size_t bufsiz, int rl_nulls,
        *argv_p = argv;
 }
 
-int io_start_buffering_out(int f_out)
+BOOL io_start_buffering_out(int f_out)
 {
        if (msgs2stderr && DEBUG_GTE(IO, 2))
                rprintf(FINFO, "[%s] io_start_buffering_out(%d)\n", who_am_i(), f_out);
@@ -1151,7 +1151,7 @@ int io_start_buffering_out(int f_out)
                if (iobuf.out_fd == -1)
                        iobuf.out_fd = f_out;
                assert(f_out == iobuf.out_fd);
-               return 0;
+               return False;
        }
 
        iobuf.out.size = IO_BUFFER_SIZE * 2 - 4;
@@ -1161,10 +1161,10 @@ int io_start_buffering_out(int f_out)
        iobuf.out.pos = iobuf.out.len = 0;
        iobuf.out_fd = f_out;
 
-       return 1;
+       return True;
 }
 
-int io_start_buffering_in(int f_in)
+BOOL io_start_buffering_in(int f_in)
 {
        if (msgs2stderr && DEBUG_GTE(IO, 2))
                rprintf(FINFO, "[%s] io_start_buffering_in(%d)\n", who_am_i(), f_in);
@@ -1173,7 +1173,7 @@ int io_start_buffering_in(int f_in)
                if (iobuf.in_fd == -1)
                        iobuf.in_fd = f_in;
                assert(f_in == iobuf.in_fd);
-               return 0;
+               return False;
        }
 
        iobuf.in.size = IO_BUFFER_SIZE;
@@ -1184,7 +1184,7 @@ int io_start_buffering_in(int f_in)
 
        iobuf.in_fd = f_in;
 
-       return 1;
+       return True;
 }
 
 void io_end_buffering_in(BOOL free_buffers)
@@ -2061,8 +2061,10 @@ void io_start_multiplex_in(int fd)
        io_start_buffering_in(fd);
 }
 
-void io_end_multiplex_in(int mode)
+int io_end_multiplex_in(int mode)
 {
+       int ret = iobuf.in_multiplexed ? iobuf.in_fd : -1;
+
        if (msgs2stderr && DEBUG_GTE(IO, 2))
                rprintf(FINFO, "[%s] io_end_multiplex_in(mode=%d)\n", who_am_i(), mode);
 
@@ -2073,11 +2075,14 @@ void io_end_multiplex_in(int mode)
                assert(iobuf.raw_input_ends_before == 0);
        if (mode != MPLX_TO_BUFFERED)
                io_end_buffering_in(mode);
+
+       return ret;
 }
 
-/* Stop output multiplexing. */
-void io_end_multiplex_out(int mode)
+int io_end_multiplex_out(int mode)
 {
+       int ret = iobuf.out_empty_len ? iobuf.out_fd : -1;
+
        if (msgs2stderr && DEBUG_GTE(IO, 2))
                rprintf(FINFO, "[%s] io_end_multiplex_out(mode=%d)\n", who_am_i(), mode);
 
@@ -2088,6 +2093,8 @@ void io_end_multiplex_out(int mode)
 
        iobuf.out.len = 0;
        iobuf.out_empty_len = 0;
+
+       return ret;
 }
 
 void start_write_batch(int fd)