Re: ldap_init( ) causing segv violation (malloc failure)

23 Oct 2007


      1) please don't send mails in html (see the result below)
2) my crystal ball tells me that you're using a 64 bit architecture.
ldap_init() is deprecated and, as such, its prototype is not usually
visible.  Instead of teaching you how to work this around, I prefer you
to use ldap_initialize(), which has a much more versatile API and should
avoid the issue you report.
p.
Santosh Kumar wrote:
...
Hi&nbsp; everyone,&nbsp; require your suggestion ,&nbsp; facing segmentation violation issue, when invoked ldap_init()when
tried analysing by gdb of coredump it points for malloc failure in
ldapxx.so libraries, not sure wheather any issues should be considered
for overcoming this,&nbsp; would appreciate your solutions about issue.&nbsp;LDAP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *ld_user;/* Code - start*/ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  &nbsp;
ld_user = ldap_init(LDAP_SERVER, LDAP_PORT);&nbsp; //Connect to Local LDAP Server&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(ld_user == NULL)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf(fpDisplay,"ERROR : ldap_init: ....Allocated : %p\n",ld_user );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit(1);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf(fpDisplay,"main: ldap_init: Sucess =.Allocated=%p\n", ld_user);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fflush(NULL);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rc = ldap_simple_bind_s( ld_user, bind_dn, LDAP_PASSWD);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if ( rc != LDAP_SUCCESS )
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; fprintf( fpDisplay, "main: ldap_simple_bind_s: ldap_simple_bind_s\n" );
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -3;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
/* Code Ends */Snap shot of GDB of coredump
0x00861d49 in _int_malloc () from /lib/tls/libc.so.6
(gdb) #1&nbsp; 0x00861d49 in _int_malloc () from /lib/tls/libc.so.6
(gdb) #2&nbsp; 0x008610ed in malloc () from /lib/tls/libc.so.6
(gdb) #3&nbsp; 0x00f3b2ef in ber_memalloc () from /usr/lib/liblber.so.2
(gdb) #4&nbsp; 0x00f3b427 in ber_memrealloc () from /usr/lib/liblber.so.2
(gdb) #5&nbsp; 0x00ac5a6b in ?? () from /usr/lib/libldap.so.2
(gdb) #6&nbsp; 0x00000000 in ?? ()
Thanks in advanceRegards,
 Santosh Kumar.B
 Sr Systems Engineer
 NeoAccel India Pvt Ltd
 Sector 24, Plot no 6, Turbhe
 Navi Mumbai 400705
 Mobile:09820939496
Regards,
 Santosh Kumar.B
 Sr Systems Engineer
 NeoAccel India Pvt Ltd
 Sector 24, Plot no 6, Turbhe
 Navi Mumbai 400705
 Mobile:09820939496
Ing. Pierangelo Masarati
OpenLDAP Core Team
SysNet s.r.l.
via Dossi, 8 - 27100 Pavia - ITALIA
http://www.sys-net.it
---------------------------------------
Office:  +39 02 23998309
Mobile:  +39 333 4963172
Email:   pierangelo.masarati@sys-net.it
---------------------------------------

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

Re: ldap_init( ) causing segv violation (malloc failure)