filtered_dep was duplicating an alpm_depend_t solely for the purpose of
overriding its depmod and would effectively cause alpm_checkdeps to
ignore ALPM_TRANS_FLAG_NODEPVERSION if the duplication failed.  Manually
overriding/restoring the depmod for the original depend removes the
duplication as a point of failure and fixes a memory leak where the
duplicated depend was not being properly freed.

Signed-off-by: Andrew Gregory <[email protected]>
---
 lib/libalpm/deps.c | 32 ++++++++++----------------------
 1 file changed, 10 insertions(+), 22 deletions(-)

diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index e5a0404..6771eac 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -276,24 +276,6 @@ static int no_dep_version(alpm_handle_t *handle)
        return (handle->trans->flags & ALPM_TRANS_FLAG_NODEPVERSION);
 }
 
-static alpm_depend_t *filtered_depend(alpm_depend_t *dep, int nodepversion)
-{
-       if(nodepversion) {
-               alpm_depend_t *newdep = _alpm_dep_dup(dep);
-               ASSERT(newdep, return dep);
-               newdep->mod = ALPM_DEP_MOD_ANY;
-               dep = newdep;
-       }
-       return dep;
-}
-
-static void release_filtered_depend(alpm_depend_t *dep, int nodepversion)
-{
-       if(nodepversion) {
-               free(dep);
-       }
-}
-
 /** Find a package satisfying a specified dependency.
  * The dependency can include versions with depmod operators.
  * @param pkgs an alpm_list_t* of alpm_pkg_t where the satisfier will be 
searched
@@ -350,7 +332,10 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_handle_t 
*handle,
 
                for(j = alpm_pkg_get_depends(tp); j; j = j->next) {
                        alpm_depend_t *depend = j->data;
-                       depend = filtered_depend(depend, nodepversion);
+                       alpm_depmod_t orig_mod = depend->mod;
+                       if(nodepversion) {
+                               depend->mod = ALPM_DEP_MOD_ANY;
+                       }
                        /* 1. we check the upgrade list */
                        /* 2. we check database for untouched satisfying 
packages */
                        if(!find_dep_satisfier(upgrade, depend) &&
@@ -364,7 +349,7 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_handle_t *handle,
                                miss = depmiss_new(tp->name, depend, NULL);
                                baddeps = alpm_list_add(baddeps, miss);
                        }
-                       release_filtered_depend(depend, nodepversion);
+                       depend->mod = orig_mod;
                }
        }
 
@@ -375,7 +360,10 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_handle_t 
*handle,
                        alpm_pkg_t *lp = i->data;
                        for(j = alpm_pkg_get_depends(lp); j; j = j->next) {
                                alpm_depend_t *depend = j->data;
-                               depend = filtered_depend(depend, nodepversion);
+                               alpm_depmod_t orig_mod = depend->mod;
+                               if(nodepversion) {
+                                       depend->mod = ALPM_DEP_MOD_ANY;
+                               }
                                alpm_pkg_t *causingpkg = 
find_dep_satisfier(modified, depend);
                                /* we won't break this depend, if it is already 
broken, we ignore it */
                                /* 1. check upgrade list for satisfiers */
@@ -391,7 +379,7 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(alpm_handle_t *handle,
                                        miss = depmiss_new(lp->name, depend, 
causingpkg->name);
                                        baddeps = alpm_list_add(baddeps, miss);
                                }
-                               release_filtered_depend(depend, nodepversion);
+                               depend->mod = orig_mod;
                        }
                }
        }
-- 
1.8.4.2


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