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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2014-06-27 12:37:00 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2014-06-27 12:37:00 +0200 |
| commit | 27c290f7f29fc57385d53893bfd7301db4708e9c (patch) | |
| tree | 4ca6e2c6ed7b1a3e1d574015faca0350b94b094b | |
| parent | a6ae999b3b30ad522272325bac4c69b153150108 (diff) | |
| download | busybox-27c290f7f29fc57385d53893bfd7301db4708e9c.tar.gz | |
ftpd: for LIST, open current directory *in the child*
Last change introduced an open fd leak. This is the fix.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | networking/ftpd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/networking/ftpd.c b/networking/ftpd.c index 839a85d73..e7cf5f431 100644 --- a/networking/ftpd.c +++ b/networking/ftpd.c @@ -620,9 +620,7 @@ popen_ls(const char *opt) const char *argv[5]; struct fd_pair outfd; pid_t pid; -#if !BB_MMU - int cur_fd = xopen(".", O_RDONLY | O_DIRECTORY); -#endif + argv[0] = "ftpd"; argv[1] = opt; /* "-l" or "-1" */ argv[2] = "--"; @@ -646,6 +644,9 @@ popen_ls(const char *opt) /*fflush_all(); - so far we dont use stdio on output */ pid = BB_MMU ? xfork() : xvfork(); if (pid == 0) { +#if !BB_MMU + int cur_fd; +#endif /* child */ /* NB: close _first_, then move fd! */ close(outfd.rd); @@ -660,6 +661,7 @@ popen_ls(const char *opt) /* memset(&G, 0, sizeof(G)); - ls_main does it */ exit(ls_main(ARRAY_SIZE(argv) - 1, (char**) argv)); #else + cur_fd = xopen(".", O_RDONLY | O_DIRECTORY); /* On NOMMU, we want to execute a child - copy of ourself * in order to unblock parent after vfork. * In chroot we usually can't re-exec. Thus we escape |