win32: move code to fork (de)compressor to a function

Use a new common function, mingw_fork_compressor(), to implement
fork_transformer() in open_transformer.c and vfork_compressor()
in tar.c.

Saves 160 bytes.

1 files changed, 1 insertions, 15 deletions

diff --git a/archival/libarchive/open_transformer.c b/archival/libarchive/open_transformer.c
index 1ac72af79..3d202ad26 100644
--- a/archival/libarchive/open_transformer.c
+++ b/archival/libarchive/open_transformer.c
@@ -154,21 +154,7 @@ void FAST_FUNC fork_transformer(int fd, const char *transform_prog)
 #else /* ENABLE_PLATFORM_MINGW */
 void FAST_FUNC fork_transformer(int fd, const char *transform_prog)
 {
-        char *cmd;
-        int fd1;
-
-        if (find_applet_by_name(transform_prog) >= 0) {
-                cmd = xasprintf("%s --busybox %s -cf -", bb_busybox_exec_path,
-                                                transform_prog);
-        }
-        else {
-                cmd = xasprintf("%s -cf -", transform_prog);
-        }
-        if ( (fd1=mingw_popen_fd(cmd, "r", fd, NULL)) == -1 ) {
-                bb_perror_msg_and_die("can't execute '%s'", transform_prog);
-        }
-        free(cmd);
-        xmove_fd(fd1, fd);
+        mingw_fork_compressor(fd, transform_prog, "r");
 }
 #endif