libxcb leaks like a sieve

test-x-connection.c

#include <X11/Xlib.h>

int main(int argc, char **argv)
{
  Display *d;
  int ret;

  d = XOpenDisplay(argv[1]);

  ret = d ? 0 : 1;

  if (d) {
    XCloseDisplay(d);
  }

  return ret;
}

valgrind run

reserved-dhcp-165-124-223-118:test-x-connection davidyip$ valgrind -v --leak-check=full --show-reachable=yes ./test-x-connection :1
==99740== Memcheck, a memory error detector
==99740== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==99740== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info
==99740== Command: ./test-x-connection :1
==99740== 
--99740-- Valgrind options:
--99740--    -v
--99740--    --leak-check=full
--99740--    --show-reachable=yes
--99740-- Contents of /proc/version:
--99740--   can't open /proc/version
--99740-- Arch and hwcaps: X86, x86-sse1-sse2
--99740-- Page sizes: currently 4096, max supported 4096
--99740-- Valgrind library directory: /opt/local/lib/valgrind
--99740-- ./test-x-connection (0x1000)
--99740--    reading syms   from primary file (7 3)
--99740--    dSYM directory is missing; consider using --dsymutil=yes
--99740-- /usr/lib/dyld (0x8fe00000)
--99740--    reading syms   from primary file (17 982)
--99740-- Reading suppressions file: /opt/local/lib/valgrind/default.supp
--99740-- REDIR: 0x8fe21e00 (strlen) redirected to 0xf00c47ac (???)
--99740-- REDIR: 0x8fe22000 (strcpy) redirected to 0xf00c47ff (???)
--99740-- REDIR: 0x8fe22177 (strcat) redirected to 0xf00c47bd (???)
--99740-- REDIR: 0x8fe220c0 (strcmp) redirected to 0xf00c47df (???)
--99740-- /opt/local/var/macports/software/valgrind/3.5.0_1/opt/local/lib/valgrind/vgpreload_core-x86-darwin.so (0xa000)
--99740--    reading syms   from primary file (3 584)
--99740--    dSYM= /opt/local/var/macports/software/valgrind/3.5.0_1/opt/local/lib/valgrind/vgpreload_core-x86-darwin.so.dSYM/Contents/Resources/DWARF/vgpreload_core-x86-darwin.so
--99740--    reading dwarf3 from dsyms file
--99740-- /opt/local/var/macports/software/valgrind/3.5.0_1/opt/local/lib/valgrind/vgpreload_memcheck-x86-darwin.so (0x14000)
--99740--    reading syms   from primary file (111 1045)
--99740--    dSYM= /opt/local/var/macports/software/valgrind/3.5.0_1/opt/local/lib/valgrind/vgpreload_memcheck-x86-darwin.so.dSYM/Contents/Resources/DWARF/vgpreload_memcheck-x86-darwin.so
--99740--    reading dwarf3 from dsyms file
==99740== WARNING: new redirection conflicts with existing -- ignoring it
--99740--     new: 0x8fe21ee0 (strlcat             ) R-> 0x000189c0 strlcat
==99740== WARNING: new redirection conflicts with existing -- ignoring it
--99740--     new: 0x8fe22000 (strcpy              ) R-> 0x00018c10 strcpy
--99740-- REDIR: 0x8fe22340 (memset) redirected to 0x17fd0 (memset)
--99740-- REDIR: 0x8fe21ce3 (strrchr) redirected to 0x179e0 (strrchr)
--99740-- /opt/local/lib/libX11.6.dylib (0x121000)
--99740--    reading syms   from primary file (1233 1272)
--99740-- /opt/local/lib/libxcb.1.dylib (0x27000)
--99740--    reading syms   from primary file (484 310)
--99740-- /opt/local/lib/libXau.6.dylib (0x41000)
--99740--    reading syms   from primary file (8 12)
--99740-- /opt/local/lib/libXdmcp.6.dylib (0x45000)
--99740--    reading syms   from primary file (45 9)
--99740-- /usr/lib/libgcc_s.1.dylib (0x4b000)
--99740--    reading syms   from primary file (85 0)
--99740-- /usr/lib/libSystem.B.dylib (0x242000)
--99740--    reading syms   from primary file (4037 3508)
--99740-- /usr/lib/system/libmathCommon.A.dylib (0x58000)
--99740--    reading syms   from primary file (32 33)
--99740-- REDIR: 0x8fe21e50 (strlcpy) redirected to 0x190a0 (strlcpy)
--99740-- REDIR: 0x2433b8 (memset) redirected to 0x17f70 (memset)
--99740-- REDIR: 0x2492e0 (memcpy) redirected to 0x191b0 (memcpy)
--99740-- REDIR: 0x24b7e4 (calloc) redirected to 0x17026 (calloc)
--99740-- REDIR: 0x244015 (malloc) redirected to 0x15396 (malloc)
--99740-- REDIR: 0x24c110 (strncmp) redirected to 0x17ba0 (strncmp)
--99740-- REDIR: 0x24ea62 (strrchr) redirected to 0x17980 (strrchr)
--99740-- REDIR: 0x24bf00 (strlen) redirected to 0x17b80 (strlen)
--99740-- REDIR: 0x249303 (free) redirected to 0x1673f (free)
--99740-- REDIR: 0x26d830 (strcpy) redirected to 0x18b50 (strcpy)
--99740-- REDIR: 0x26c221 (strchr) redirected to 0x17a40 (strchr)
--99740-- REDIR: 0x24d870 (realloc) redirected to 0x171ca (realloc)
--99740-- REDIR: 0x24e520 (memmove) redirected to 0x18030 (memmove)
--99740-- REDIR: 0x8fe22494 (memmove) redirected to 0x180c0 (memmove)
==99740== 
==99740== HEAP SUMMARY:
==99740==     in use at exit: 1,319 bytes in 32 blocks
==99740==   total heap usage: 206 allocs, 174 frees, 18,210 bytes allocated
==99740== 
==99740== Searching for pointers to 32 not-freed blocks
==99740== Checked 727,956 bytes
==99740== 
==99740== 28 bytes in 1 blocks are indirectly lost in loss record 1 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DE51: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136456: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 28 bytes in 1 blocks are indirectly lost in loss record 2 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DE69: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136456: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 43 bytes in 1 blocks are definitely lost in loss record 3 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DD28: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136456: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 64 bytes in 1 blocks are still reachable in loss record 5 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x248D76: localeconv_l (in /usr/lib/libSystem.B.dylib)
==99740==    by 0x244334: __vfprintf (in /usr/lib/libSystem.B.dylib)
==99740==    by 0x268B89: snprintf (in /usr/lib/libSystem.B.dylib)
==99740==    by 0x14DD9B: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136456: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 112 bytes in 4 blocks are indirectly lost in loss record 6 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DE51: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136D67: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 112 bytes in 4 blocks are indirectly lost in loss record 7 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DE69: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136D67: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 116 (60 direct, 56 indirect) bytes in 1 blocks are definitely lost in loss record 8 of 11
==99740==    at 0x170D8: calloc (vg_replace_malloc.c:418)
==99740==    by 0x14DCD3: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136456: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 172 bytes in 4 blocks are definitely lost in loss record 9 of 11
==99740==    at 0x15416: malloc (vg_replace_malloc.c:195)
==99740==    by 0x14DD28: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136D67: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== 464 (240 direct, 224 indirect) bytes in 4 blocks are definitely lost in loss record 11 of 11
==99740==    at 0x170D8: calloc (vg_replace_malloc.c:418)
==99740==    by 0x14DCD3: _XConnectXCB (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x136D67: XOpenDisplay (in /opt/local/lib/libX11.6.dylib)
==99740==    by 0x1FD7: main (in ./test-x-connection)
==99740== 
==99740== LEAK SUMMARY:
==99740==    definitely lost: 515 bytes in 10 blocks
==99740==    indirectly lost: 280 bytes in 10 blocks
==99740==      possibly lost: 0 bytes in 0 blocks
==99740==    still reachable: 64 bytes in 1 blocks
==99740==         suppressed: 460 bytes in 11 blocks
==99740== 
==99740== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)
--99740-- 
--99740-- used_suppression:      1 darwin-still-reachable-1
--99740-- used_suppression:      1 darwin-still-reachable-2
==99740== 
==99740== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)