[389-users] Re: help building test-plugin

On Thu, 2018-03-08 at 14:32 -0500, Harvey, Robert wrote:
> I'm hoping that someone can help me find out why my pre-bind plugin
> clauses ns-slapd to crash when the slapi_search_internal_get_entry
> function is called. What I'm seeing is that after starting ns-slapd,
> the plugin will crash slapd consistently or it will work
> consistently. This is with the same plugin in place and with the same
> user. So after some restarts the plugin crashes the slapd and after
> other starts I can bind and unbind with the same account dozens of
> times successfully.

Hi there.

As a general development rule, I would strongly advise you enable the
ASAN build functions, as this will help you find data corruptions and
crashes *at the source* rather then when they flow through the
application.

Another general question is "what do you want to achieve" with your
plugin? What's the purpose of it?

>
>
>
> This what I have installed:
>
> [root@njbbldapp21 ~]# rpm -qa | grep 389
> 389-ds-base-libs-1.3.6.1-26.el7_4.x86_64
> 389-dsgw-1.1.11-5.el7.x86_64
> 389-console-1.1.18-1.el7.noarch
> 389-adminutil-1.1.21-2.el7.x86_64
> 389-admin-console-1.1.12-1.el7.noarch
> 389-ds-console-1.2.16-1.el7.noarch
> 389-ds-console-doc-1.2.16-1.el7.noarch
> 389-ds-1.2.2-6.el7.noarch
> 389-ds-base-1.3.6.1-26.el7_4.x86_64
> 389-ds-base-devel-1.3.6.1-26.el7_4.x86_64
> 389-admin-console-doc-1.1.12-1.el7.noarch
> 389-admin-1.1.46-1.el7.x86_64
>
> Here's my Makefile:
>
> CC = gcc
> LD = ld
>
> INCLUDE_FLAGS = -I /usr/lib64/dirsrv/plugins -I
> /opt/adminhome/aharvero/slap/389-ds-base-1.4.0.5/ldap/servers/slapd
> -I /usr/include/nspr4 -I /opt/adminhome/aharvero/slap/389-ds-base-
> 1.4.0.5/ldap/include
>
> #CFLAGS = $(INCLUDE_FLAGS) -D_REENTRANT -fPIC -z defs -shared
> CFLAGS = $(INCLUDE_FLAGS) -D_REENTRANT -fPIC -z defs -shared
> -lsladpd -ltcmalloc -lldap_r -llber -lsasl2 -l svrcore -lssl3 -l nss3
> -lkrb5 -l k5crypto -lcom_err -lpcre -lpthread -lsystemd -l plc4 -l
> plds4 -lc
> #LDFLAGS = -G
>
> LDFLAGS = -G -fPIC -z defs -shared -lc -l:libplc4.so
> -l:libslapd.so.0.1.0 -l:libldap_r-2.4.so.2 -l:liblber-2.4.so.2 -L
> /usr/lib64/dirsrv -L /lib64
>
> OBJS = mybind.o
>
> all: libmybind-plugin.so
>
>
> libmybind-plugin.so: $(OBJS)
> $(LD) $(LDFLAGS) -o $@ $(OBJS)
>
> .c.o:
> $(CC) $(CFLAGS) -c $<
>
> clean:
> -rm -f $(OBJS) libmybind-plugin.so
>
>
> Here's the plugin:
>
>
> $ cat mybind.c
>
> #ifdef HAVE_CONFIG_H
> #include <config.h>
>