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In my (seemingly) never ending search for a firewall friendly, Cygwin ftpd server, I finally stumbled across vsFTPd. By "firewall friendly," I mean being able to specifying the range of passive ports used during data transfers. Although, vsFTPd does not use autoconf, the code is well factored -- especially the system dependent routines. Hence, it ported to Cygwin without many problems. See the attached patch for the details. The following are the most notable changes: 1. Temporarily workaround a mmap()/fork() problem by effectively replacing vsf_secbuf_alloc() and vsf_secbuf_free() with malloc() and free(), respectively. 2. Add Corinna's standard NT authentication patch. 3. Workaround lack of Cygwin nanosleep(). 4. Workaround lack of Cygwin setregid() and setreuid(). The mmap()/fork() problem workaround is the only "show stopper." When I strace vsftpd, I get the following error: 311 37332969 [main] vsftpd 2232 fixup_mmaps_after_fork: recreate_mmaps_after_fork, mmapped_areas 0xA042100 90 37333059 [main] vsftpd 2232 fixup_mmaps_after_fork: fd -1, h 1F4, access 1, offset 0, size 65536, address 0xB40000 160 37333219 [main] vsftpd 2232 fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address 0xB40000, Win32 error 299 I will try to dig deeper to determine why ReadProcessMemory() is failing with ERROR_PARTIAL_COPY (i.e., 299), but any help or pointers will be greatly appreciated. Thanks, Jason -- PGP/GPG Key: http://www.tishler.net/jason/pubkey.asc or key servers Fingerprint: 7A73 1405 7F2B E669 C19D 8784 1AFD E4CC ECF4 8EF6
Attachment:
vsftpd.patch
Description: Text document
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