Multiple WWW-Authenticate headers with "satisfy any;". If a module adds multiple WWW-Authenticate headers (ticket #485) to the response, linked in r->headers_out.www_authenticate, all headers are now cleared if another module later allows access. This change is a nop for standard modules, since the only access module which can add multiple WWW-Authenticate headers is the auth request module, and it is checked after other standard access modules. Though this might affect some third party access modules. Note that if a 3rd party module adds a single WWW-Authenticate header and not yet modified to set the header's next pointer to NULL, attempt to clear such a header with this change will result in a segmentation fault.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


ngx_include="unistd.h";      . auto/include
ngx_include="inttypes.h";    . auto/include
ngx_include="limits.h";      . auto/include
ngx_include="sys/filio.h";   . auto/include
ngx_include="sys/param.h";   . auto/include
ngx_include="sys/mount.h";   . auto/include
ngx_include="sys/statvfs.h"; . auto/include
ngx_include="crypt.h";       . auto/include