blob: 320afbd244106fb245b25e78cf707dd6dfe2ab3b [file] [log] [blame]
/*
* $Id: cimcclient.c,v 1.5 2008/12/15 23:54:25 mchasal Exp $
*
* © Copyright IBM Corp. 2007
*
* THIS FILE IS PROVIDED UNDER THE TERMS OF THE ECLIPSE PUBLIC LICENSE
* ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE
* CONSTITUTES RECIPIENTS ACCEPTANCE OF THE AGREEMENT.
*
* You can obtain a current copy of the Eclipse Public License from
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* Author: Viktor Mihajlovski <mihajlov@de.ibm.com>
*
* Description:
*
* CIM C Client Loader Implementation
*
*/
#include "cimc.h"
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
/*
* Canonical CIM C API entry points
*/
#define LIBLEN 512
#define ENTLEN 256
#define ERRLEN 1024
/* Create new CIMCEnv
id - the interface to use, either XML or SfcbLocal
options - options passed to the given backend (ops in cimc.h)
todo: for the next interface revamp, passing in a version number
would be a good idea, so we could allow for dlopening different
versions of .so libs
*/
CIMCEnv* NewCIMCEnv(const char *id, unsigned int options, int *rc, char **msg)
{
char libName[LIBLEN+1];
char entry[ENTLEN+1];
void *library;
InitCimcEnv init=NULL;
CIMCEnv *rv=NULL;
struct stat sbuf;
libName[LIBLEN]=0;
entry[ENTLEN]=0;
if ((strcmp(id, "XML") != 0) && (strcmp(id, "SfcbLocal") != 0)) {
*msg=calloc(1,ERRLEN+1);
*rc=3;
snprintf(*msg,ERRLEN,"Invalid connection type '%s'. Must be 'XML' or 'SfcbLocal'.",id);
} else {
if ((strcmp(id, "SfcbLocal") == 0) &&
(stat(SFCB_LIBDIR, &sbuf) == 0)) {
snprintf(libName, LIBLEN, "%s/libcimcClient%s.so.0",SFCB_LIBDIR,id);
} else {
snprintf(libName, LIBLEN, "libcimcClient%s.so.0",id);
}
library = dlopen(libName, RTLD_NOW);
if (library==NULL) {
*msg=calloc(1,ERRLEN+1);
*rc=1;
snprintf(*msg,ERRLEN,"Unable to load %s library %s",libName,dlerror());
} else {
snprintf(entry, ENTLEN,"_Create_%s_Env", id);
init = (InitCimcEnv)dlsym(library, entry);
if (init==NULL) {
*msg=calloc(1,ERRLEN+1);
*rc=2;
snprintf(*msg,ERRLEN,"Unable to locate entry %s in %s",entry,libName);
dlclose(library);
} else {
*rc=0;
*msg=NULL;
rv = init(id,options,rc,msg);
rv->hdl=library;
}
}
}
return rv;
}
void ReleaseCIMCEnv(CIMCEnv *env)
{
void *lib=NULL;
if (env) {
lib = env->hdl;
env->ft->release(env);
if (lib) {
dlclose(lib);
}
}
}