Move curlx_ functions into its own subdir.
The idea is to use the curlx_ prefix proper on these functions, and use
these same function names both in tool, lib and test suite source code.
Stop the previous special #define setup for curlx_ names.
The printf defines are now done for the library alone. Tests no longer
use the printf defines. The tool code sets its own defines. The printf
functions are not curlx, they are publicly available.
The strcase defines are not curlx_ functions and should not be used by
tool or server code.
dynbuf, warnless, base64, strparse, timeval, timediff are now proper
curlx functions.
When libcurl is built statically, the functions from the library can be
used as-is. The key is then that the functions must work as-is, without
having to be recompiled for use in tool/tests. This avoids symbol
collisions - when libcurl is built statically, we use those functions
directly when building the tool/tests. When libcurl is shared, we
build/link them separately for the tool/tests.
Assisted-by: Jay Satiro
Closes#17253
Calls to `Curl_init_do()` did not check on result and missed failures to
properly and completely initialize a transfer request.
The main cause of such an init failure is the need to rewind the
READFUNCTION without a SEEKFUNCTION registered. Check the failure to
"rewind" the upload data immediately make test cases 1576 and friends
fail.
Reported-by: Travis Lane
Fixes#17139Closes#17150
With this change, the argument passed to the CURLOPT_FOLLOWLOCATION
option is now instead a "mode" instead of just a boolean. Documentation
is extended to describe the two new modes.
Test 1571 to 1581 verify.
Closes#16473
