diff options
| -rw-r--r-- | vl.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/vl.c b/vl.c index 7e161c69c4..b3e07acc52 100644 --- a/vl.c +++ b/vl.c @@ -1297,12 +1297,23 @@ CharDriverState *qemu_chr_open_file_out(const char *file_out) CharDriverState *qemu_chr_open_pipe(const char *filename) { - int fd; - - fd = open(filename, O_RDWR | O_BINARY); - if (fd < 0) - return NULL; - return qemu_chr_open_fd(fd, fd); + int fd_in, fd_out; + char filename_in[256], filename_out[256]; + + snprintf(filename_in, 256, "%s.in", filename); + snprintf(filename_out, 256, "%s.out", filename); + fd_in = open(filename_in, O_RDWR | O_BINARY); + fd_out = open(filename_out, O_RDWR | O_BINARY); + if (fd_in < 0 || fd_out < 0) { + if (fd_in >= 0) + close(fd_in); + if (fd_out >= 0) + close(fd_out); + fd_in = fd_out = open(filename, O_RDWR | O_BINARY); + if (fd_in < 0) + return NULL; + } + return qemu_chr_open_fd(fd_in, fd_out); } |