Further NUT for Windows fixes: path discovery, CGI under IIS, etc.#3249

Merged

jimklimov merged 37 commits intonetworkupstools:masterfrom

jimklimov:issue-3207

Jan 16, 2026

Commits on Jan 10, 2026

Consider EXEEXT in CGI programs, templates and docs [#3207]
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docs/man/upsset.conf.txt, docs/nut.dict, NEWS.adoc: documented setup of Microsoft IIS to host the NUT CGI programs [#3207]
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appveyor.yml: comment about "mingwXX" in archived N4W builds [#3207]
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docs/man/upsset.conf.txt: revise MS IIS setup for NUT CGI experimentally [#3207]
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clients/upsstats.c: use the more dynamic confpath() rather than built-in CONFPATH [#3207]
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drivers/snmp-ups.c, docs/man/snmp-ups.txt: use the more dynamic confpath() rather than built-in CONFPATH, and document the (incomplete) *mib.conf support
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tools/nut-scanner/scan_nut_simulation.c, NEWS.adoc: use the more dynamic confpath() rather than built-in CONFPATH
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docs/man/upsset.conf.txt: note also the "html" directory for pretty UI [#3207]
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clients/ups{set,stats,image}.c: support NUT_DEBUG_LEVEL envvar in CGI clients [#3207]
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configure.ac, data/htmlcgi/header.html.in, docs/configure.txt, docs/man/upsset.conf.txt, NEWS.adoc, docs/nut.dict: introduce --with-cgi-uri [#3207]
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common/parseconf.c: pconf_file_begin(): extend limited UNC path support on WIN32 builds [#3207]
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clients/upsset.c, clients/upsstats.c: debug-trace which config file we try to use [#3207]
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common/common.c, common/parseconf.c: generalize the WIN32 UNC localhost prefix chop-off [#3207]
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scripts/Windows/wininit.c: err on the safe side and allocate buffers sized NUT_PATH_MAX + 1 (for the NUL byte)
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NEWS.adoc, docs/nut.dict: update and restructure news for 2.8.5 cycle
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Convert conf/upsstats*.html.sample files into .in templates to consider EXEEXT where applicable (e.g. WIN32) [#3207]
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docs/man/ups*.{cgi,html}.txt: refer to upsset.conf page about web server preparation for NUT CGI [#3207]
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docs/man/upsset.conf.txt: suggest more ways of hiding/securing NUT CGI on a web server
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docs/man/upsstats.html.txt: mention sibling upsstats-single.html early in the doc too
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data/htmlcgi/bottom.html: populate with a bit of text so browser users know loading is completed and not stalled
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data/htmlcgi/index.html, data/htmlcgi/Makefile.am, NEWS.adoc: use a NUT favicon with CGI HTML pages
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clients/ups{set,stats,image}.c: treat stdout as a binary stream for CGI on all platforms [#3207]
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clients/upsset.c: on WIN32 always extractpostargs() [#3207]
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clients/ups{set,stats,image}.c: setmode() actually seems to not be wide-spread; is available in WIN32 builds though, so constrain it to them [#3249]
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clients/upsset.c, clients/cgilib.c: move the time-constrained read of POST data from STDIN from client code into common code [#3219]
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clients/cgilib.c: extractpostargs(): troubleshoot incoming bytes [#3219]
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clients/ups{set,stats,image}.c: on WIN32 initialize socket layer for select() to work [#3219]
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clients/cgilib.c: extractpostargs(): on WIN32, select() is a SOCKET concept and does not apply to STDIN [#3219]
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clients/cgilib.c: extractpostargs(): revise debug logging [#3249]
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clients/upsset.c, clients/cgilib.c: in cgilib, see if server tells us CONTENT_LENGTH, and on IIS truncate it by a byte; in upsset add a sacrificial sentinel into each HTML FORM [#3219]
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clients/cgilib.c: extractpostargs(): simplify the loop to avoid potential final parsearg() of leftovers [#3219]
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docs/man/upsset.conf.txt: document recommendations about CGI timeout [#3219]
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NUT CGI upsstats (prog, doc, template): add links to expose device/all data as JSON docs [#3171]
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clients/upsstats.c: add call-stack tracing [#3249]
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clients/upsstats.c: display_template(): open HTML template in binary mode, so ftell()/fseek() work predictably [#3219]
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clients/upsstats.c, docs/man/upsstats.html.txt, conf/upsstats*.html.sample.in, NEWS.adoc, UPGRADING.adoc: introduced `@NUT_UPSSTATS_TEMPLATE@` magic token that HTML templates must start with [#3249…
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docs/man/upsset.conf.txt: revise recommendations for CGI engine timeouts [#3219]
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