bool TClntOptIA_PD::doDuties()
{
    if (!OriginalMsg) {
	Log(Error) << "Internal error. Unable to set prefixes: setContext() not called." << LogEnd;
	return false;
    }
	
    switch(OriginalMsg->getType()) {
    case REQUEST_MSG:
    case SOLICIT_MSG:
	return addPrefixes();
    case RELEASE_MSG:
	return delPrefixes();
    case RENEW_MSG:
    case REBIND_MSG:
	return updatePrefixes();
    default:
	break;
    }
    
    return true;
} 
Exemple #2
0
void rpmRelocateFileList(rpmRelocation *relocations, int numRelocations, 
			 rpmfs fs, Header h)
{
    char ** baseNames;
    char ** dirNames;
    uint32_t * dirIndexes;
    rpm_count_t fileCount, dirCount;
    int nrelocated = 0;
    int fileAlloced = 0;
    char * fn = NULL;
    int haveRelocatedBase = 0;
    size_t maxlen = 0;
    int i, j;
    struct rpmtd_s bnames, dnames, dindexes, fmodes;

    if (!addPrefixes(h, relocations, numRelocations))
	return;

    if (rpmIsDebug()) {
	rpmlog(RPMLOG_DEBUG, "========== relocations\n");
	for (i = 0; i < numRelocations; i++) {
	    if (relocations[i].oldPath == NULL) continue; /* XXX can't happen */
	    if (relocations[i].newPath == NULL)
		rpmlog(RPMLOG_DEBUG, "%5d exclude  %s\n",
			i, relocations[i].oldPath);
	    else
		rpmlog(RPMLOG_DEBUG, "%5d relocate %s -> %s\n",
			i, relocations[i].oldPath, relocations[i].newPath);
	}
    }

    for (i = 0; i < numRelocations; i++) {
	if (relocations[i].newPath == NULL) continue;
	size_t len = strlen(relocations[i].newPath);
	if (len > maxlen) maxlen = len;
    }

    headerGet(h, RPMTAG_BASENAMES, &bnames, HEADERGET_MINMEM);
    headerGet(h, RPMTAG_DIRINDEXES, &dindexes, HEADERGET_ALLOC);
    headerGet(h, RPMTAG_DIRNAMES, &dnames, HEADERGET_MINMEM);
    headerGet(h, RPMTAG_FILEMODES, &fmodes, HEADERGET_MINMEM);
    /* TODO XXX ugh.. use rpmtd iterators & friends instead */
    baseNames = bnames.data;
    dirIndexes = dindexes.data;
    fileCount = rpmtdCount(&bnames);
    dirCount = rpmtdCount(&dnames);
    /* XXX TODO: use rpmtdDup() instead */
    dirNames = dnames.data = duparray(dnames.data, dirCount);
    dnames.flags |= RPMTD_PTR_ALLOCED;

    /*
     * For all relocations, we go through sorted file/relocation lists 
     * backwards so that /usr/local relocations take precedence over /usr 
     * ones.
     */

    /* Relocate individual paths. */

    for (i = fileCount - 1; i >= 0; i--) {
	rpmFileTypes ft;
	int fnlen;

	size_t len = maxlen +
		strlen(dirNames[dirIndexes[i]]) + strlen(baseNames[i]) + 1;
	if (len >= fileAlloced) {
	    fileAlloced = len * 2;
	    fn = xrealloc(fn, fileAlloced);
	}

assert(fn != NULL);		/* XXX can't happen */
	*fn = '\0';
	fnlen = stpcpy( stpcpy(fn, dirNames[dirIndexes[i]]), baseNames[i]) - fn;

	/*
	 * See if this file path needs relocating.
	 */
	/*
	 * XXX FIXME: Would a bsearch of the (already sorted) 
	 * relocation list be a good idea?
	 */
	for (j = numRelocations - 1; j >= 0; j--) {
	    if (relocations[j].oldPath == NULL) /* XXX can't happen */
		continue;
	    len = !rstreq(relocations[j].oldPath, "/")
		? strlen(relocations[j].oldPath)
		: 0;

	    if (fnlen < len)
		continue;
	    /*
	     * Only subdirectories or complete file paths may be relocated. We
	     * don't check for '\0' as our directory names all end in '/'.
	     */
	    if (!(fn[len] == '/' || fnlen == len))
		continue;

	    if (!rstreqn(relocations[j].oldPath, fn, len))
		continue;
	    break;
	}
	if (j < 0) continue;

	rpmtdSetIndex(&fmodes, i);
	ft = rpmfiWhatis(rpmtdGetNumber(&fmodes));

	/* On install, a relocate to NULL means skip the path. */
	if (relocations[j].newPath == NULL) {
	    if (ft == XDIR) {
		/* Start with the parent, looking for directory to exclude. */
		for (j = dirIndexes[i]; j < dirCount; j++) {
		    len = strlen(dirNames[j]) - 1;
		    while (len > 0 && dirNames[j][len-1] == '/') len--;
		    if (fnlen != len)
			continue;
		    if (!rstreqn(fn, dirNames[j], fnlen))
			continue;
		    break;
		}
	    }
	    rpmfsSetAction(fs, i, FA_SKIPNSTATE);
	    rpmlog(RPMLOG_DEBUG, "excluding %s %s\n",
		   ftstring(ft), fn);
	    continue;
	}

	/* Relocation on full paths only, please. */
	if (fnlen != len) continue;

	rpmlog(RPMLOG_DEBUG, "relocating %s to %s\n",
	       fn, relocations[j].newPath);
	nrelocated++;

	strcpy(fn, relocations[j].newPath);
	{   char * te = strrchr(fn, '/');
	    if (te) {
		if (te > fn) te++;	/* root is special */
		fnlen = te - fn;
	    } else
		te = fn + strlen(fn);
	    if (!rstreq(baseNames[i], te)) { /* basename changed too? */
		if (!haveRelocatedBase) {
		    /* XXX TODO: use rpmtdDup() instead */
		    bnames.data = baseNames = duparray(baseNames, fileCount);
		    bnames.flags |= RPMTD_PTR_ALLOCED;
		    haveRelocatedBase = 1;
		}
		free(baseNames[i]);
		baseNames[i] = xstrdup(te);
	    }
	    *te = '\0';			/* terminate new directory name */
	}

	/* Does this directory already exist in the directory list? */
	for (j = 0; j < dirCount; j++) {
	    if (fnlen != strlen(dirNames[j]))
		continue;
	    if (!rstreqn(fn, dirNames[j], fnlen))
		continue;
	    break;
	}
	
	if (j < dirCount) {
	    dirIndexes[i] = j;
	    continue;
	}

	/* Creating new paths is a pita */
	dirNames = dnames.data = xrealloc(dnames.data, 
			       sizeof(*dirNames) * (dirCount + 1));

	dirNames[dirCount] = xstrdup(fn);
	dirIndexes[i] = dirCount;
	dirCount++;
	dnames.count++;
    }

    /* Finish off by relocating directories. */
    for (i = dirCount - 1; i >= 0; i--) {
	for (j = numRelocations - 1; j >= 0; j--) {

	    if (relocations[j].oldPath == NULL) /* XXX can't happen */
		continue;
	    size_t len = !rstreq(relocations[j].oldPath, "/")
		? strlen(relocations[j].oldPath)
		: 0;

	    if (len && !rstreqn(relocations[j].oldPath, dirNames[i], len))
		continue;

	    /*
	     * Only subdirectories or complete file paths may be relocated. We
	     * don't check for '\0' as our directory names all end in '/'.
	     */
	    if (dirNames[i][len] != '/')
		continue;

	    if (relocations[j].newPath) { /* Relocate the path */
		char *t = NULL;
		rstrscat(&t, relocations[j].newPath, (dirNames[i] + len), NULL);
		/* Unfortunately rpmCleanPath strips the trailing slash.. */
		(void) rpmCleanPath(t);
		rstrcat(&t, "/");

		rpmlog(RPMLOG_DEBUG,
		       "relocating directory %s to %s\n", dirNames[i], t);
		free(dirNames[i]);
		dirNames[i] = t;
		nrelocated++;
	    }
	}
    }

    /* Save original filenames in header and replace (relocated) filenames. */
    if (nrelocated) {
	saveOrig(h);
	headerMod(h, &bnames);
	headerMod(h, &dnames);
	headerMod(h, &dindexes);
    }

    rpmtdFreeData(&bnames);
    rpmtdFreeData(&dnames);
    rpmtdFreeData(&dindexes);
    rpmtdFreeData(&fmodes);
    free(fn);
}