int GWEN_LibLoader_OpenLibraryWithPath(GWEN_LIBLOADER *h,
const char *path,
const char *name)
{
GWEN_BUFFER *buffer;
unsigned int pos;
unsigned int pos2;
unsigned int i;
int missingSoExt;
int missingLibPrefix;
int err;
assert(h);
assert(name);
missingSoExt=0;
missingLibPrefix=0;
buffer=GWEN_Buffer_new(0, 256, 0, 1);
if (path) {
GWEN_Buffer_AppendString(buffer, path);
GWEN_Buffer_AppendByte(buffer, '/');
}
/* remember current position */
pos=GWEN_Buffer_GetPos(buffer);
/* append name of the library to load */
GWEN_Buffer_AppendString(buffer, name);
i=strlen(name);
/* check whether we have the ".so" extension */
if ((i<=3) || (strcmp(name+i-3, ".so")!=0)) {
/* no SO-extension, add it myself */
missingSoExt=1;
}
/* check whether we have the "lib" prefix */
if ((i<=3) || (strncmp(name, "lib", 3)!=0)) {
/* no SO-extension, add it myself */
missingLibPrefix=1;
}
/* try to load the library */
err=GWEN_LibLoader_LoadLibrary(h, GWEN_Buffer_GetStart(buffer));
if (!err) {
DBG_INFO(GWEN_LOGDOMAIN, "Library \"%s\" loaded",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return 0;
}
/* could not load, check why */
/*if (GWEN_Error_GetType(err)!=
GWEN_Error_FindType(GWEN_LIBLOADER_ERROR_TYPE) ||
GWEN_Error_GetCode(err)!=GWEN_LIBLOADER_ERROR_NOT_FOUND) {
DBG_ERROR_ERR(GWEN_LOGDOMAIN, err);
DBG_INFO(GWEN_LOGDOMAIN, "Could not load library \"%s\"",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return err;
}
*/
/* hmm, not found, try some variants */
if (missingSoExt) {
/* try again, this time with ".so" appended */
pos2=GWEN_Buffer_GetPos(buffer);
GWEN_Buffer_AppendString(buffer, ".so");
err=GWEN_LibLoader_LoadLibrary(h, GWEN_Buffer_GetStart(buffer));
if (!err) {
DBG_INFO(GWEN_LOGDOMAIN, "Library \"%s\" loaded",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return 0;
}
GWEN_Buffer_Crop(buffer, 0, pos2);
GWEN_Buffer_SetPos(buffer, pos2);
/* could not load, check why */
if (err!=GWEN_ERROR_NOT_FOUND) {
DBG_INFO(GWEN_LOGDOMAIN, "Could not load library \"%s\"",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return err;
}
}
if (missingLibPrefix) {
GWEN_Buffer_SetPos(buffer, pos);
/* insert "lib" */
GWEN_Buffer_InsertString(buffer, "lib");
/* try again */
err=GWEN_LibLoader_LoadLibrary(h, GWEN_Buffer_GetStart(buffer));
if (!err) {
DBG_INFO(GWEN_LOGDOMAIN, "Library \"%s\" loaded",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return 0;
}
/* could not load, check why */
if (err!=GWEN_ERROR_NOT_FOUND) {
DBG_INFO(GWEN_LOGDOMAIN, "Could not load library \"%s\"",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return err;
}
/* try again, this time with ".so" AND "lib" */
if (missingSoExt) {
GWEN_Buffer_AppendString(buffer, ".so");
err=GWEN_LibLoader_LoadLibrary(h, GWEN_Buffer_GetStart(buffer));
if (!err) {
DBG_INFO(GWEN_LOGDOMAIN, "Library \"%s\" loaded",
GWEN_Buffer_GetStart(buffer));
GWEN_Buffer_free(buffer);
return 0;
}
}
}
DBG_INFO(GWEN_LOGDOMAIN, "Library \"%s\" name (or variants) not found, giving up",
name);
GWEN_Buffer_free(buffer);
return err;
}
int GWEN_XMLNode_GetXPath(const GWEN_XMLNODE *n1,
const GWEN_XMLNODE *n2,
GWEN_BUFFER *nbuf) {
GWEN_BUFFER *lbuf;
const GWEN_XMLNODE *ln1;
const GWEN_XMLNODE *ln2;
if (!n1 && !n2) {
DBG_ERROR(GWEN_LOGDOMAIN, "Both nodes are NULL");
return -1;
}
if (!n1) {
n1=n2;
while(n1->parent)
n1=n1->parent;
}
if (!n2) {
n2=n1;
while(n2->parent)
n2=n2->parent;
}
if (n2==n1) {
GWEN_Buffer_AppendString(nbuf, "here()");
return 0;
}
lbuf=GWEN_Buffer_new(0, 256, 0, 1);
GWEN_Buffer_ReserveBytes(lbuf, 128);
ln1=n1->parent;
if (ln1) {
GWEN_Buffer_AppendString(lbuf, "../");
while(ln1) {
if (ln1==n2) {
/* found n2 */
GWEN_Buffer_AppendBuffer(nbuf, lbuf);
GWEN_Buffer_free(lbuf);
return 0;
}
if (GWEN_XMLNode_IsChildOf(ln1, n2))
break;
ln1=ln1->parent;
GWEN_Buffer_AppendString(lbuf, "../");
}
if (!ln1) {
DBG_ERROR(GWEN_LOGDOMAIN, "Nodes do not share root node");
GWEN_Buffer_free(lbuf);
return -1;
}
/* append path to n1 */
GWEN_Buffer_AppendBuffer(nbuf, lbuf);
}
DBG_ERROR(GWEN_LOGDOMAIN, "Path so far: %s", GWEN_Buffer_GetStart(lbuf));
/* get path to n2 */
GWEN_Buffer_Reset(lbuf);
ln2=n2;
while(ln2) {
GWEN_XMLNODE *tn;
int idx;
char idxbuf[32];
if (ln2->parent==ln1)
break;
/* count occurences of this tag in this level */
idx=1;
tn=ln2->parent;
if (tn) {
tn=GWEN_XMLNode_FindFirstTag(tn, ln2->data, 0, 0);
while(tn) {
if (tn==ln2)
break;
idx++;
tn=GWEN_XMLNode_FindNextTag(tn, ln2->data, 0, 0);
}
}
snprintf(idxbuf, sizeof(idxbuf), "[%d]", idx);
idxbuf[sizeof(idxbuf)-1]=0;
GWEN_Buffer_InsertString(lbuf, idxbuf);
GWEN_Buffer_InsertString(lbuf, GWEN_XMLNode_GetData(ln2));
GWEN_Buffer_InsertByte(lbuf, '/');
ln2=ln2->parent;
}
DBG_ERROR(GWEN_LOGDOMAIN, "Path so far: %s", GWEN_Buffer_GetStart(lbuf));
assert(ln2);
/* append path to n2 */
GWEN_Buffer_AppendBuffer(nbuf, lbuf);
GWEN_Buffer_free(lbuf);
return 0;
}
