- Martin Drasar provided the CURLOPT_POSTREDIR patch. It renames

CURLOPT_POST301 (but adds a define for backwards compatibility for you who
  don't define CURL_NO_OLDIES). This option allows you to now also change the
  libcurl behavior for a HTTP response 302 after a POST to not use GET in the
  subsequent request (when CURLOPT_FOLLOWLOCATION is enabled). I edited the
  patch somewhat before commit. The curl tool got a matching --post302
  option. Test case 1076 was added to verify this.

tests/data/Makefile.am

@@ -57,7 +57,7 @@ EXTRA_DIST = test1 test108 test117 test127 test20 test27 test34 test46	   \
  test1048 test1049 test1050 test1051 test1052 test1053 test1054 test1055   \
  test1056 test1057 test1058 test1059 test1060 test1061 test1062 test1063   \
  test1064 test1065 test1066 test1067 test1068 test1069 test1070 test1071   \
- test1072 test1073 test1074 test1075
+ test1072 test1073 test1074 test1075 test1076
 
 filecheck:
 	@mkdir test-place; \

tests/data/test1076

@@ -0,0 +1,79 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP POST
+followlocation
+</keywords>
+</info>
+#
+# Server-side
+<reply>
+<data>
+HTTP/1.1 302 OK swsclose
+Location: moo.html&testcase=/10760002
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Connection: close
+
+</data>
+<data2>
+HTTP/1.1 200 OK swsclose
+Location: this should be ignored
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Connection: close
+
+body
+</data2>
+<datacheck>
+HTTP/1.1 302 OK swsclose
+Location: moo.html&testcase=/10760002
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Connection: close
+
+HTTP/1.1 200 OK swsclose
+Location: this should be ignored
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Connection: close
+
+body
+</datacheck>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+http
+</server>
+ <name>
+HTTP POST with 302 redirect and --post302
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/blah/1076 -L -d "moo" --post302
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol nonewline="yes">
+POST /blah/1076 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+Content-Length: 3
+Content-Type: application/x-www-form-urlencoded
+
+mooPOST /blah/moo.html&testcase=/10760002 HTTP/1.1
+User-Agent: curl/7.10 (i686-pc-linux-gnu) libcurl/7.10 OpenSSL/0.9.6c ipv6 zlib/1.1.3
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+Content-Length: 3
+Content-Type: application/x-www-form-urlencoded
+
+moo
+</protocol>
+</verify>
+</testcase>