The following is 100% reproducible with ftp from inetutils
1.3.2-23 and -24, and any Cygwin 1.5.X.
I have not tried other combinations.
Note the mispelling of the site in the initial command.
~: ftp mysite.verzion.net
ftp: connect to address 208.38.59.182: Connection refused
Trying 208.38.59.183...
ftp: connect to address 208.38.59.183: Connection refused
Trying 208.38.61.25...
ftp: connect to address 208.38.61.25: Connection refused
Trying 199.72.44.116...
ftp: connect to address 199.72.44.116: Connection refused
Trying 208.38.59.181...
ftp: connect: Connection refused
ftp> open mysite.verizon.net
Segmentation fault (core dumped)
Here is the stack
#1 0x61043c54 in dlfree (mem=0x980828) at
../../../../src/winsup/cygwin/malloc.cc:3781
#2 0x6104c20a in free_hostent_ptr(hostent*&) (p=@0x610fd62c) at
../../../../src/winsup/cygwin/net.cc:972
#3 0x6104c57b in cygwin_gethostbyname (name=0x413ef5 "mysite.verizon.net")
at ../../../../src/winsup/cygwin/net.cc:1048
CYGWIN_ME-4.90 hpn5170x 1.5.3(0.90/3/2) 2003-08-30 14:50 i686 unknown
unknown Cygwin