From 059c91711f664927534246bd5c1d5e202fcf8e1d Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Mon, 12 Nov 2007 02:13:12 +0000 Subject: open_transformer: do not duplicate " -cf -" text data bss dec hex filename 677858 738 7236 685832 a7708 busybox_old 677804 738 7236 685778 a76d2 busybox_unstripped --- archival/libunarchive/open_transformer.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) (limited to 'archival/libunarchive/open_transformer.c') diff --git a/archival/libunarchive/open_transformer.c b/archival/libunarchive/open_transformer.c index 355613a67..757a2a389 100644 --- a/archival/libunarchive/open_transformer.c +++ b/archival/libunarchive/open_transformer.c @@ -8,12 +8,12 @@ /* transformer(), more than meets the eye */ /* - * On MMU machine, the transform_prog and ... are stripped - * by a macro in include/unarchive.h. On NOMMU, transformer is stripped. + * On MMU machine, the transform_prog is removed by macro magic + * in include/unarchive.h. On NOMMU, transformer is removed. */ int open_transformer(int src_fd, USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd), - const char *transform_prog, ...) + const char *transform_prog) { int fd_pipe[2]; int pid; @@ -29,9 +29,6 @@ int open_transformer(int src_fd, bb_perror_msg_and_die("fork failed"); if (pid == 0) { -#if !BB_MMU - va_list ap; -#endif /* child process */ close(fd_pipe[0]); /* We don't wan't to read from the parent */ // FIXME: error check? @@ -43,12 +40,17 @@ int open_transformer(int src_fd, } exit(0); #else - xmove_fd(src_fd, 0); - xmove_fd(fd_pipe[1], 1); - va_start(ap, transform_prog); - /* hoping that va_list -> char** on our CPU is working... */ - BB_EXECVP(transform_prog, (void*)ap); - bb_perror_msg_and_die("exec failed"); + { + char *argv[4]; + xmove_fd(src_fd, 0); + xmove_fd(fd_pipe[1], 1); + argv[0] = (char*)transform_prog; + argv[1] = (char*)"-cf"; + argv[2] = (char*)"-"; + argv[3] = NULL; + BB_EXECVP(transform_prog, argv); + bb_perror_msg_and_die("exec failed"); + } #endif /* notreached */ } -- cgit v1.2.3