Bug 1595203

The following description has been redacted.

+++ This bug was initially created as a clone of Bug #1575549 +++

Description of problem:
Simple program to connect openldap overssl when run under valgrind generates reports showing memory leaks.

==30126== Memcheck, a memory error detector
==30126== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==30126== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==30126== Command: ./OpenLDAPValgrindProblems
==30126==
==30126== Warning: invalid file descriptor -1 in syscall write()
==30126==
==30126== HEAP SUMMARY:
==30126==     in use at exit: 99,497 bytes in 3,092 blocks
==30126==   total heap usage: 139,747 allocs, 136,655 frees, 15,177,222 bytes allocated
==30126==
==30126== 96 bytes in 1 blocks are definitely lost in loss record 262 of 351
==30126==    at 0x4C29C80: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==30126==    by 0x7714F8F: PORT_Alloc_Util (in /usr/lib64/libnssutil3.so)
==30126==    by 0x73EE4ED: CERT_Hexify (in /usr/lib64/libnss3.so)
==30126==    by 0x549E306: tlsmc_hash (tls_mc.c:443)
==30126==    by 0x549E96E: tlsmc_compute_checksum (tls_mc.c:618)
==30126==    by 0x549FACE: tlsmc_convert (tls_mc.c:1160)
==30126==    by 0x54A0020: tlsmc_intercept_initialization (tls_mc.c:1303)
==30126==    by 0x5499FBE: ldap_int_tls_init_ctx (tls2.c:208)
==30126==    by 0x549A29C: ldap_pvt_tls_init_def_ctx (tls2.c:298)
==30126==    by 0x549A32A: alloc_handle (tls2.c:313)
==30126==    by 0x549A40B: ldap_int_tls_connect.isra.2 (tls2.c:362)
==30126==    by 0x549B2C5: ldap_int_tls_start (tls2.c:907)
==30126==
==30126== 123 bytes in 1 blocks are definitely lost in loss record 264 of 351
==30126==    at 0x4C2BFEE: realloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==30126==    by 0x7D46EDF: GrowStuff (prprf.c:1131)
==30126==    by 0x7D471E3: dosprintf (prprf.c:722)
==30126==    by 0x7D480E9: PR_vsmprintf (prprf.c:1184)
==30126==    by 0x7D481C8: PR_smprintf (prprf.c:1162)
==30126==    by 0x549FB1E: tlsmc_convert (tls_mc.c:1178)
==30126==    by 0x54A0020: tlsmc_intercept_initialization (tls_mc.c:1303)
==30126==    by 0x5499FBE: ldap_int_tls_init_ctx (tls2.c:208)
==30126==    by 0x549A29C: ldap_pvt_tls_init_def_ctx (tls2.c:298)
==30126==    by 0x549A32A: alloc_handle (tls2.c:313)
==30126==    by 0x549A40B: ldap_int_tls_connect.isra.2 (tls2.c:362)
==30126==    by 0x549B2C5: ldap_int_tls_start (tls2.c:907)
==30126==
==30126== 123 bytes in 1 blocks are definitely lost in loss record 265 of 351
==30126==    at 0x4C2BFEE: realloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==30126==    by 0x7D46EDF: GrowStuff (prprf.c:1131)
==30126==    by 0x7D471E3: dosprintf (prprf.c:722)
==30126==    by 0x7D480E9: PR_vsmprintf (prprf.c:1184)
==30126==    by 0x7D481C8: PR_smprintf (prprf.c:1162)
==30126==    by 0x549FDFF: tlsmc_convert (tls_mc.c:1245)
==30126==    by 0x54A0020: tlsmc_intercept_initialization (tls_mc.c:1303)
==30126==    by 0x5499FBE: ldap_int_tls_init_ctx (tls2.c:208)
==30126==    by 0x549A29C: ldap_pvt_tls_init_def_ctx (tls2.c:298)
==30126==    by 0x549A32A: alloc_handle (tls2.c:313)
==30126==    by 0x549A40B: ldap_int_tls_connect.isra.2 (tls2.c:362)
==30126==    by 0x549B2C5: ldap_int_tls_start (tls2.c:907)
==30126==
==30126== 123 bytes in 1 blocks are definitely lost in loss record 266 of 351
==30126==    at 0x4C2BFEE: realloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==30126==    by 0x7D46EDF: GrowStuff (prprf.c:1131)
==30126==    by 0x7D471E3: dosprintf (prprf.c:722)
==30126==    by 0x7D480E9: PR_vsmprintf (prprf.c:1184)
==30126==    by 0x7D481C8: PR_smprintf (prprf.c:1162)
==30126==    by 0x549FE58: tlsmc_convert (tls_mc.c:1256)
==30126==    by 0x54A0020: tlsmc_intercept_initialization (tls_mc.c:1303)
==30126==    by 0x5499FBE: ldap_int_tls_init_ctx (tls2.c:208)
==30126==    by 0x549A29C: ldap_pvt_tls_init_def_ctx (tls2.c:298)
==30126==    by 0x549A32A: alloc_handle (tls2.c:313)
==30126==    by 0x549A40B: ldap_int_tls_connect.isra.2 (tls2.c:362)
==30126==    by 0x549B2C5: ldap_int_tls_start (tls2.c:907)
==30126==
==30126== LEAK SUMMARY:
==30126==    definitely lost: 465 bytes in 4 blocks
==30126==    indirectly lost: 0 bytes in 0 blocks
==30126==      possibly lost: 0 bytes in 0 blocks
==30126==    still reachable: 99,032 bytes in 3,088 blocks
==30126==         suppressed: 0 bytes in 0 blocks
==30126== Reachable blocks (those to which a pointer was found) are not shown.
==30126== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==30126==
==30126== For counts of detected and suppressed errors, rerun with: -v
==30126== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)


Actual results:
Valgrind shows memory leaks

Expected results:
openldap library should not report leaks.