gnu: Add fcgi.

* gnu/packages/patches/fcgi-2.4.0-gcc44-fixes.patch: New file.
* gnu/packages/patches/fcgi-2.4.0-poll.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register patches.
* gnu/packages/web.scm (fcgi): New variable.

gnu/local.mk

@@ -540,6 +540,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/fasthenry-spUtils.patch			\
   %D%/packages/patches/fasthenry-spSolve.patch			\
   %D%/packages/patches/fasthenry-spFactor.patch			\
+  %D%/packages/patches/fcgi-2.4.0-gcc44-fixes.patch		\
+  %D%/packages/patches/fcgi-2.4.0-poll.patch			\
   %D%/packages/patches/findutils-localstatedir.patch		\
   %D%/packages/patches/findutils-test-xargs.patch		\
   %D%/packages/patches/flex-CVE-2016-6354.patch			\

gnu/packages/patches/fcgi-2.4.0-gcc44-fixes.patch

@@ -0,0 +1,14 @@
+Taken from http://pkgs.fedoraproject.org/cgit/rpms/fcgi.git/plain/fcgi-2.4.0-gcc44_fixes.patch.
+Fixes compilation with GCC 4.4 and later.
+
+diff -up fcgi-2.4.0/libfcgi/fcgio.cpp.gcc44_fixes fcgi-2.4.0/libfcgi/fcgio.cpp
+--- fcgi-2.4.0/libfcgi/fcgio.cpp.gcc44_fixes	2002-02-24 21:12:22.000000000 +0100
++++ fcgi-2.4.0/libfcgi/fcgio.cpp	2009-02-15 11:35:18.000000000 +0100
+@@ -23,6 +23,7 @@
+ #endif
+ 
+ #include <limits.h>
++#include <cstdio>
+ #include "fcgio.h"
+ 
+ using std::streambuf;

gnu/packages/patches/fcgi-2.4.0-poll.patch

@@ -0,0 +1,89 @@
+Taken from http://pkgs.fedoraproject.org/cgit/rpms/fcgi.git/plain/fcgi-2.4.0-poll.patch
+Fixes CVE-2012-6687.
+
+Author: Anton Kortunov <toshic.toshic@gmail.com>
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/libfcgi/+bug/933417
+Description: use poll in os_unix.c instead of select to avoid problem with > 1024 connections
+Forwarded: yes, fastcgi-developers@mailman.fastcgi.com
+
+diff --git a/libfcgi/os_unix.c b/libfcgi/os_unix.c
+index 73e6a7f..af35aee 100755
+--- a/libfcgi/os_unix.c
++++ b/libfcgi/os_unix.c
+@@ -42,6 +42,7 @@ static const char rcsid[] = "$Id: os_unix.c,v 1.37 2002/03/05 19:14:49 robs Exp
+ #include <sys/time.h>
+ #include <sys/un.h>
+ #include <signal.h>
++#include <poll.h>
+ 
+ #ifdef HAVE_NETDB_H
+ #include <netdb.h>
+@@ -103,6 +104,9 @@ static int volatile maxFd = -1;
+ static int shutdownPending = FALSE;
+ static int shutdownNow = FALSE;
+ 
++static int libfcgiOsClosePollTimeout = 2000;
++static int libfcgiIsAfUnixKeeperPollTimeout = 2000;
++
+ void OS_ShutdownPending()
+ {
+     shutdownPending = TRUE;
+@@ -168,6 +172,16 @@ int OS_LibInit(int stdioFds[3])
+     if(libInitialized)
+         return 0;
+ 
++    char *libfcgiOsClosePollTimeoutStr = getenv( "LIBFCGI_OS_CLOSE_POLL_TIMEOUT" );
++    if(libfcgiOsClosePollTimeoutStr) {
++        libfcgiOsClosePollTimeout = atoi(libfcgiOsClosePollTimeoutStr);
++    }
++
++    char *libfcgiIsAfUnixKeeperPollTimeoutStr = getenv( "LIBFCGI_IS_AF_UNIX_KEEPER_POLL_TIMEOUT" );
++    if(libfcgiIsAfUnixKeeperPollTimeoutStr) {
++        libfcgiIsAfUnixKeeperPollTimeout = atoi(libfcgiIsAfUnixKeeperPollTimeoutStr);
++    }
++
+     asyncIoTable = (AioInfo *)malloc(asyncIoTableSize * sizeof(AioInfo));
+     if(asyncIoTable == NULL) {
+         errno = ENOMEM;
+@@ -755,19 +769,16 @@ int OS_Close(int fd)
+ 
+     if (shutdown(fd, 1) == 0)
+     {
+-        struct timeval tv;
+-        fd_set rfds;
++        struct pollfd pfd;
+         int rv;
+         char trash[1024];
+ 
+-        FD_ZERO(&rfds);
++        pfd.fd = fd;
++        pfd.events = POLLIN;
+ 
+         do 
+         {
+-            FD_SET(fd, &rfds);
+-            tv.tv_sec = 2;
+-            tv.tv_usec = 0;
+-            rv = select(fd + 1, &rfds, NULL, NULL, &tv);
++            rv = poll(&pfd, 1, libfcgiOsClosePollTimeout);
+         }
+         while (rv > 0 && read(fd, trash, sizeof(trash)) > 0);
+     }
+@@ -1116,13 +1127,11 @@ static int is_reasonable_accept_errno (const int error)
+  */
+ static int is_af_unix_keeper(const int fd)
+ {
+-    struct timeval tval = { READABLE_UNIX_FD_DROP_DEAD_TIMEVAL };
+-    fd_set read_fds;
+-
+-    FD_ZERO(&read_fds);
+-    FD_SET(fd, &read_fds);
++    struct pollfd pfd;
++    pfd.fd = fd;
++    pfd.events = POLLIN;
+ 
+-    return select(fd + 1, &read_fds, NULL, NULL, &tval) >= 0 && FD_ISSET(fd, &read_fds);
++    return poll(&pfd, 1, libfcgiIsAfUnixKeeperPollTimeout) >= 0 && (pfd.revents & POLLIN);
+ }
+ 
+ /*

gnu/packages/web.scm

@@ -201,6 +201,31 @@ and as a proxy to reduce the load on back-end HTTP or mail servers.")
     ;;     except for two source files which are bsd-4 licensed.
     (license (list l:bsd-2 l:expat l:bsd-3 l:bsd-4))))
 
+(define-public fcgi
+  (package
+    (name "fcgi")
+    (version "2.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       ;; Upstream has disappeared
+       (uri (string-append "https://sources.archlinux.org/other/packages/fcgi/"
+                           "fcgi-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1f857wnl1d6jfrgfgfpz3zdaj8fch3vr13mnpcpvy8bang34bz36"))
+       (patches (search-patches "fcgi-2.4.0-poll.patch"
+                                "fcgi-2.4.0-gcc44-fixes.patch"))))
+    (build-system gnu-build-system)
+    (home-page "http://www.fastcgi.com")
+    (synopsis "Language-independent, high-performant extension to CGI")
+    (description "FastCGI is a language independent, scalable extension to CGI
+that provides high performance without the limitations of server specific
+APIs.")
+    ;; This package is released under the Open Market License, a variant of
+    ;; the Expat license, incompatible with the GPL.
+    (license (l:non-copyleft "file://LICENSE.TERMS"))))
+
 (define-public starman
   (package
     (name "starman")