Implement streaming json output

.github/CONTRIBUTING.md

@@ -14,19 +14,20 @@ FreeBSD, and macOS.  Support may be provided on a best-effort basis to
 other UNIX-like platforms.  We cannot provide support for building
 and/or running iperf3 on Windows, iOS, or Android.
 
-Before asking for help, please use your favorite search engine or
-questions site (such as Stack Overflow) to see if your question might
-have been asked (and maybe even answered) before.
-https://fasterdata.es.net/ has some information on the use of various
-bandwidth measurement tools, including iperf3.  The iperf3
-documentation Web site at http://software.es.net/iperf/ contains
-various bits of helpful information, including a list of
+Before asking for help, please check with your favorite search engine
+or the
+[iperf3 Discussions site on GitHub](http://github.com/esnet/iperf/discussions)
+to see if your question might have been asked (and maybe even
+answered) before.  https://fasterdata.es.net/ has some information on
+the use of various bandwidth measurement tools, including iperf3.  The
+iperf3 documentation Web site at http://software.es.net/iperf/
+contains various bits of helpful information, including a list of
 [frequently-asked questions](http://software.es.net/iperf/faq.html).
 
 We specifically discourage the use of the issue tracker on the iperf3
 GitHub project page for asking questions.  Questions posted in the
-form of issues may go unanswered.  Please use a questions site
-such as [Stack Overflow](http://www.stackoverflow.com)
+form of issues may go unanswered.  Please use the
+[iperf3 Discussions site on GitHub](http://github.com/esnet/iperf/discussions)
 to ask questions of the community or
 alternatively use the iperf3 mailing list at
 iperf-dev@googlegroups.com (posting requires joining the list).

.github/ISSUE_TEMPLATE.md

@@ -1,9 +1,10 @@
 _NOTE: The iperf3 issue tracker is for registering bugs, enhancement
 requests, or submissions of code.  It is not a means for asking
 questions about building or using iperf3.  Those are best directed
-towards the iperf3 mailing list at iperf-dev@googlegroups.com or
-question sites such as Stack Overflow
-(http://www.stackoverflow.com/).  A list of frequently-asked questions
+towards the Discussions section for this project at
+https://github.com/esnet/iperf/discussions
+or to the iperf3 mailing list at iperf-dev@googlegroups.com.
+A list of frequently-asked questions
 regarding iperf3 can be found at http://software.es.net/iperf/faq.html._
 
 # Context
@@ -23,7 +24,9 @@ iperf3 on Windows, iOS, or Android._
   libraries, cross-compiling, etc.):
 
 _Please fill out one of the "Bug Report" or "Enhancement Request"
-sections, as appropriate._
+sections, as appropriate. Note that submissions of bug fixes, new
+features, etc. should be done as a pull request at
+https://github.com/esnet/iperf/pulls_
 
 # Bug Report
 
@@ -35,8 +38,6 @@ sections, as appropriate._
 
 * Possible Solution
 
-_Please submit patches or code changes as a pull request._
-
 # Enhancement Request
 
 * Current behavior
@@ -45,5 +46,3 @@ _Please submit patches or code changes as a pull request._
 
 * Implementation notes
 
-_If submitting a proposed implementation of an enhancement request,
-please use the pull request mechanism._

.github/workflows/test.yml

@@ -0,0 +1,35 @@
+name: test
+on: [push, pull_request]
+jobs:
+  cppcheck-test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: install dependencies
+      run: |
+        sudo apt-get -y update && sudo apt-get install -y cppcheck && \
+        cppcheck . --force --inline-suppr
+  build-test-latest:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: install dependencies
+      run: |
+        sudo apt-get -y update && sudo apt-get install -y build-essential
+    - name: build
+      run: |
+        ./configure && make && make check
+        timeout 300 src/iperf3 -s &
+        ./test_commands.sh localhost
+  build-test-ubuntu-20_04:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v3
+    - name: install dependencies
+      run: |
+        sudo apt-get -y update && sudo apt-get install -y build-essential 
+    - name: build
+      run: |
+        ./configure && make && make check
+        timeout 300 src/iperf3 -s &
+        ./test_commands.sh localhost

.gitignore

@@ -30,3 +30,4 @@ examples/.libs
 examples/Makefile
 examples/mic
 examples/mis
+.vscode/

LICENSE

@@ -1,5 +1,5 @@
-"iperf, Copyright (c) 2014-2021, The Regents of the University of California,
-through Lawrence Berkeley National Laboratory (subject to receipt of any 
+"iperf, Copyright (c) 2014-2023, The Regents of the University of California,
+through Lawrence Berkeley National Laboratory (subject to receipt of any
 required approvals from the U.S. Dept. of Energy).  All rights reserved."
 
 Redistribution and use in source and binary forms, with or without

Makefile.in

@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.16.3 from Makefile.am.
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2020 Free Software Foundation, Inc.
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
 
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -90,6 +90,7 @@ host_triplet = @host@
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/config/ax_check_openssl.m4 \
+	$(top_srcdir)/config/ax_pthread.m4 \
 	$(top_srcdir)/config/iperf_config_static_bin.m4 \
 	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
@@ -154,18 +155,16 @@ am__define_uniq_tagged_files = \
   unique=`for i in $$list; do \
     if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
   done | $(am__uniquify_input)`
-ETAGS = etags
-CTAGS = ctags
-CSCOPE = cscope
 DIST_SUBDIRS = $(SUBDIRS)
 am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/iperf3.spec.in \
 	$(top_srcdir)/config/compile $(top_srcdir)/config/config.guess \
 	$(top_srcdir)/config/config.sub \
 	$(top_srcdir)/config/install-sh $(top_srcdir)/config/ltmain.sh \
 	$(top_srcdir)/config/missing \
-	$(top_srcdir)/config/mkinstalldirs INSTALL config/compile \
-	config/config.guess config/config.sub config/install-sh \
-	config/ltmain.sh config/missing config/mkinstalldirs
+	$(top_srcdir)/config/mkinstalldirs INSTALL README.md \
+	config/compile config/config.guess config/config.sub \
+	config/install-sh config/ltmain.sh config/missing \
+	config/mkinstalldirs
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
@@ -221,7 +220,10 @@ AWK = @AWK@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
+CPP = @CPP@
 CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
 CYGPATH_W = @CYGPATH_W@
 DEFS = @DEFS@
 DEPDIR = @DEPDIR@
@@ -232,8 +234,10 @@ ECHO_C = @ECHO_C@
 ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EGREP = @EGREP@
+ETAGS = @ETAGS@
 EXEEXT = @EXEEXT@
 FGREP = @FGREP@
+FILECMD = @FILECMD@
 GREP = @GREP@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
@@ -271,6 +275,10 @@ PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
 RANLIB = @RANLIB@
 SED = @SED@
 SET_MAKE = @SET_MAKE@
@@ -289,6 +297,7 @@ am__leading_dot = @am__leading_dot@
 am__quote = @am__quote@
 am__tar = @am__tar@
 am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
 bindir = @bindir@
 build = @build@
 build_alias = @build_alias@
@@ -484,7 +493,6 @@ cscopelist-am: $(am__tagged_files)
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
-
 distdir: $(BUILT_SOURCES)
 	$(MAKE) $(AM_MAKEFLAGS) distdir-am
 

README.md

@@ -18,7 +18,7 @@ such as nuttcp and netperf, but were missing from the original iperf.
 These include, for example, a zero-copy mode and optional JSON output.
 Note that iperf3 is *not* backwards compatible with the original iperf.
 
-Primary development for iperf3 takes place on CentOS Linux, FreeBSD,
+Primary development for iperf3 takes place on Ubuntu Linux, FreeBSD,
 and macOS.  At this time, these are the only officially supported
 platforms, however there have been some reports of success with
 OpenBSD, NetBSD, Android, Solaris, and other Linux distributions.
@@ -30,6 +30,10 @@ For more information see: https://software.es.net/iperf
 
 Source code and issue tracker: https://github.com/esnet/iperf
 
+Discussion forums: https://github.com/esnet/iperf/discussions
+
+Reporting security vulnerabilities: iperf@es.net
+
 Obtaining iperf3
 ----------------
 
@@ -76,8 +80,8 @@ These flags include:
     -Z, --zerocopy            use a 'zero copy' sendfile() method of sending data
     -A, --affinity n/n,m      set CPU affinity
 
-Bug Reports
------------
+Bug and Security Reports
+------------------------
 
 Before submitting a bug report, please make sure you're running the
 latest version of the code, and confirm that your issue has not
@@ -97,6 +101,11 @@ sensitive information.
 If you have a question about usage or about the code, please do *not*
 submit an issue.  Please use one of the mailing lists for that.
 
+If you suspect there is a potential security issue, please contact the
+developers at:
+
+iperf@es.net
+
 Relation to iperf 2.x
 ---------------------
 
@@ -106,26 +115,6 @@ The projects (as of mid-2021) are in active, but separate, development.
 The continuing iperf2 development
 project can be found at https://sourceforge.net/projects/iperf2/.
 
-iperf3 contains a number of options and functions not present in
-iperf2.  In addition, some flags are changed from their iperf2
-counterparts:
-
-    -C, --linux-congestion    set congestion control algorithm (Linux only)
-                              (-Z in iperf2)
-    --bidir                   bidirectional testing mode
-                              (-d in iperf2)
-
-Some iperf2 options are not available in iperf3:
-
-    -r, --tradeoff           Do a bidirectional test individually
-    -T, --ttl                time-to-live, for multicast (default 1)
-    -x, --reportexclude [CDMSV]   exclude C(connection) D(data) M(multicast)
-                                  S(settings) V(server) reports
-    -y, --reportstyle C      report as a Comma-Separated Values
-
-Also removed is the ability to set the options via environment
-variables.
-
 Known Issues
 ------------
 
@@ -148,7 +137,7 @@ responsibility for the content of these pages.
 Copyright
 ---------
 
-iperf, Copyright (c) 2014-2021, The Regents of the University of
+iperf, Copyright (c) 2014-2023, The Regents of the University of
 California, through Lawrence Berkeley National Laboratory (subject
 to receipt of any required approvals from the U.S. Dept. of
 Energy).  All rights reserved.