gnu: gnupg: Add upstream fix for test failures on x86_64.

Fixes <https://debbugs.gnu.org/22558>.

* gnu/packages/patches/gnupg-simple-query-ignore-status-messages.patch: New
  file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gnupg.scm (gnupg)[source]: Add patch.

1 files changed, 142 insertions, 0 deletions

diff --git a/gnu/packages/patches/gnupg-simple-query-ignore-status-messages.patch b/gnu/packages/patches/gnupg-simple-query-ignore-status-messages.patch
new file mode 100644
index 0000000000..153f71c38f
--- /dev/null
+++ b/gnu/packages/patches/gnupg-simple-query-ignore-status-messages.patch
@@ -0,0 +1,142 @@
+Copied from upstream:
+http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commitdiff;h=acac103ba5772ae738ce5409d17feab80596cde6
+
+Fixes: https://debbugs.gnu.org/22558
+Upstream bug: https://bugs.gnupg.org/gnupg/issue2229
+
+From acac103ba5772ae738ce5409d17feab80596cde6 Mon Sep 17 00:00:00 2001
+From: "Neal H. Walfield" <neal@g10code.com>
+Date: Fri, 12 Feb 2016 22:12:21 +0100
+Subject: [PATCH] common: Change simple_query to ignore status messages.
+
+* common/simple-pwquery.c (simple_query): Ignore status messages.
+
+--
+Signed-off-by: Neal H. Walfield <neal@g10code.com>
+GnuPG-bug-id: 2229
+---
+ common/simple-pwquery.c | 95 ++++++++++++++++++++++++++++++++++---------------
+ 1 file changed, 67 insertions(+), 28 deletions(-)
+
+diff --git a/common/simple-pwquery.c b/common/simple-pwquery.c
+index 90d04c0..b2d666c 100644
+--- a/common/simple-pwquery.c
++++ b/common/simple-pwquery.c
+@@ -618,6 +618,7 @@ simple_query (const char *query)
+   int fd = -1;
+   int nread;
+   char response[500];
++  int have = 0;
+   int rc;
+ 
+   rc = agent_open (&fd);
+@@ -628,40 +629,78 @@ simple_query (const char *query)
+   if (rc)
+     goto leave;
+ 
+-  /* get response */
+-  nread = readline (fd, response, 499);
+-  if (nread < 0)
+-    {
+-      rc = -nread;
+-      goto leave;
+-    }
+-  if (nread < 3)
++  while (1)
+     {
+-      rc = SPWQ_PROTOCOL_ERROR;
+-      goto leave;
+-    }
++      if (! have || ! strchr (response, '\n'))
++        /* get response */
++        {
++          nread = readline (fd, &response[have],
++                            sizeof (response) - 1 /* NUL */ - have);
++          if (nread < 0)
++            {
++              rc = -nread;
++              goto leave;
++            }
++          have += nread;
++          if (have < 3)
++            {
++              rc = SPWQ_PROTOCOL_ERROR;
++              goto leave;
++            }
++          response[have] = 0;
++        }
+ 
+-  if (response[0] == 'O' && response[1] == 'K')
+-    /* OK, do nothing.  */;
+-  else if ((nread > 7 && !memcmp (response, "ERR 111", 7)
+-            && (response[7] == ' ' || response[7] == '\n') )
+-           || ((nread > 4 && !memcmp (response, "ERR ", 4)
+-                && (strtoul (response+4, NULL, 0) & 0xffff) == 99)) )
+-    {
+-      /* 111 is the old Assuan code for canceled which might still
+-         be in use by old installations. 99 is GPG_ERR_CANCELED as
+-         used by modern gpg-agents; 0xffff is used to mask out the
+-         error source.  */
++      if (response[0] == 'O' && response[1] == 'K')
++        /* OK, do nothing.  */;
++      else if ((nread > 7 && !memcmp (response, "ERR 111", 7)
++                && (response[7] == ' ' || response[7] == '\n') )
++               || ((nread > 4 && !memcmp (response, "ERR ", 4)
++                    && (strtoul (response+4, NULL, 0) & 0xffff) == 99)) )
++        {
++          /* 111 is the old Assuan code for canceled which might still
++             be in use by old installations. 99 is GPG_ERR_CANCELED as
++             used by modern gpg-agents; 0xffff is used to mask out the
++             error source.  */
+ #ifdef SPWQ_USE_LOGGING
+-      log_info (_("canceled by user\n") );
++          log_info (_("canceled by user\n") );
+ #endif
+-    }
+-  else
+-    {
++        }
++      else if (response[0] == 'S' && response[1] == ' ')
++        {
++          char *nextline;
++          int consumed;
++
++          nextline = strchr (response, '\n');
++          if (! nextline)
++            /* Point to the NUL.  */
++            nextline = &response[have];
++          else
++            /* Move past the \n.  */
++            nextline ++;
++
++          consumed = (size_t) nextline - (size_t) response;
++
++          /* Skip any additional newlines.  */
++          while (consumed < have && response[consumed] == '\n')
++            consumed ++;
++
++          have -= consumed;
++
++          if (have)
++            memmove (response, &response[consumed], have + 1);
++
++          continue;
++        }
++      else
++        {
+ #ifdef SPWQ_USE_LOGGING
+-      log_error (_("problem with the agent\n"));
++          log_error (_("problem with the agent (unexpected response \"%s\"\n"),
++                     response);
+ #endif
+-      rc = SPWQ_ERR_RESPONSE;
++          rc = SPWQ_ERR_RESPONSE;
++        }
++
++      break;
+     }
+ 
+  leave:
+-- 
+2.6.3
+