1. Fix build error when building without certificates.
2. Add the root CA option to the echoserver usage.
3. Update the readme file to include the new certificate option.
4. Added command line option to load a CA cert into the echoserver.
1. The echoserver's sftp_worker() was treating the WS_CHAN_RXD status as
an error and failing out. Updated to clear the error status.
2. wolfSSH_SFTP_read() was also treating WS_CHAN_RXD status as an error
and terminating the transfer. Update to treat like the other status.
1. client.c: It was warning a recommendation to tag the function
`readInput()` as non-return. Changed the err_sys() calls to
`fprintf(stderr, ...)` and then return from the function.
2. internal.c: In functions `DoKexInit()` and
`DoUserAuthRequestPublicKey()`, initialized a couple variables that
could be used uninitialized.
3. wolfsftp.c: Fixed a variable that was shadowing a global label.
4. wolfsftp.c: In function `wolfSSH_SFTP_RecvFSTAT()`, initialized a
variable that could be used uninitialized.
5. scpclient.c: The command line argument was read into a char value
assuming it was signed, which is usually true. On the PowerPC this
value is unsigned. Promoted it to int to match the other tools.
1. All the sources for the tests and examples did not have an include
for config.h. This fixed some inconsistent builds with an older
version of gcc.
2. Moved config.h from the src directory to the top level of the repo
directory.
1. Fixed a leak from a commit earlier in this branch.
2. Freed the correct address name when a forwarded connection closes.
3. Only muck about with the childFd when using the shell.
4. Treat the error code WS_CHANNEL_CLOSED as status, not a failure.
1. Moved SendKexDhReply()'s signature data to the heap. (413)
2. Moved SendUserAuthRequest()'s signature data to the heap. (414)
3. Moved DoKexDhReply()'s signature data to the heap. (415)
4. Moved DoUserAuthRequestRsa()'s RSA key to the heap. (416)
5. Moved wolfSSH_ProcessBuffer()'s key buffer to the heap. (422)
6. Moved wolfSSH_ReadKey_buffer()'s key bugger to the heap. (423)
7. In the echoserver, fixed a small-stack related allocation. It was
using a DYNTYPE constant, but those aren't visible. Also, the
wrong variable name was getting freed. (rebase)