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authorAurelien Foret <aurelien@archlinux.org>2005-05-04 19:30:00 +0000
committerAurelien Foret <aurelien@archlinux.org>2005-05-04 19:30:00 +0000
commita5e4fec74efc10b6555405d432a88e1d93131531 (patch)
tree4f9bdda7b95a421aeaa70cdae78bc8d4de5fe7ae /lib/libalpm/deps.c
parentce6dcb5159e612a7876643544ad6339f49dd6a9d (diff)
fixed a memory leak and avoided to modify a read-only parameter
Diffstat (limited to 'lib/libalpm/deps.c')
-rw-r--r--lib/libalpm/deps.c55
1 files changed, 25 insertions, 30 deletions
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 2f5d1457..9a35e665 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -59,69 +59,64 @@ PMList *sortbydeps(PMList *targets, int mode)
int change = 1;
int numscans = 0;
int numtargs = 0;
- int clean = 0;
if(targets == NULL) {
return(NULL);
}
- /* count the number of targets */
- numtargs = pm_list_count(targets);
+ for(i = targets; i; i = i->next) {
+ newtargs = pm_list_add(newtargs, i->data);
+ numtargs++;
+ }
while(change) {
+ PMList *tmptargs = NULL;
change = 0;
if(numscans > numtargs) {
_alpm_log(PM_LOG_WARNING, "possible dependency cycle detected");
- change = 0;
continue;
}
- newtargs = NULL;
numscans++;
/* run thru targets, moving up packages as necessary */
- for(i = targets; i; i = i->next) {
+ for(i = newtargs; i; i = i->next) {
pmpkg_t *p = (pmpkg_t*)i->data;
for(j = p->depends; j; j = j->next) {
pmdepend_t dep;
- int found = 0;
pmpkg_t *q = NULL;
-
- splitdep(j->data, &dep);
+ if(splitdep(j->data, &dep)) {
+ continue;
+ }
/* look for dep.name -- if it's farther down in the list, then
* move it up above p
*/
- for(k = i->next; k && !found; k = k->next) {
- q = (pmpkg_t*)k->data;
+ for(k = i->next; k; k = k->next) {
+ q = (pmpkg_t *)k->data;
if(!strcmp(dep.name, q->name)) {
- found = 1;
- }
- }
- if(found) {
- if(!pkg_isin(q, newtargs)) {
- change = 1;
- newtargs = pm_list_add(newtargs, q);
+ if(!pkg_isin(q, tmptargs)) {
+ change = 1;
+ tmptargs = pm_list_add(tmptargs, q);
+ }
+ break;
}
}
}
- if(!pkg_isin(p, newtargs)) {
- newtargs = pm_list_add(newtargs, p);
+ if(!pkg_isin(p, tmptargs)) {
+ tmptargs = pm_list_add(tmptargs, p);
}
}
- if(clean && change) {
- /* free up targets -- it's local now */
- FREELISTPTR(targets);
- }
- targets = newtargs;
- clean = 1;
+ FREELISTPTR(newtargs);
+ newtargs = tmptargs;
}
+
if(mode == PM_TRANS_TYPE_REMOVE) {
/* we're removing packages, so reverse the order */
- newtargs = _alpm_list_reverse(targets);
+ PMList *tmptargs = _alpm_list_reverse(newtargs);
/* free the old one */
- FREELISTPTR(targets);
- targets = newtargs;
+ FREELISTPTR(newtargs);
+ newtargs = tmptargs;
}
- return(targets);
+ return(newtargs);
}
/* Returns a PMList* of missing_t pointers.