rpm/0001-Fix-spurious-transfiletriggerpostun-execution-RhBug-.patch

From b3d672a5523dfec033160e5cc866432a0e808649 Mon Sep 17 00:00:00 2001
Message-Id: <b3d672a5523dfec033160e5cc866432a0e808649.1642160603.git.pmatilai@redhat.com>
From: Panu Matilainen <pmatilai@redhat.com>
Date: Tue, 16 Nov 2021 11:49:18 +0200
Subject: [PATCH] Fix spurious %transfiletriggerpostun execution
 (RhBug:2023311)

If a package has multiple %transfiletriggerpostun triggers, any one
of them matching would cause all of them to run, due to disconnect
in the intel gathering stage: we'd gather all the headers with matching
files into a lump, and then add any postun triggers found in them,
but this loses the triggering file information and causes all postuns
to run.

The triggers need to be added while looping over the file matches,
like runFileTriggers() does. Doing so actually simplifies the code.
These should really be unified to use the same code, but leaving
that exercise to another rainy day.
---
 lib/rpmtriggers.c | 64 +++++++++++++++++++++++------------------------
 1 file changed, 31 insertions(+), 33 deletions(-)

diff --git a/lib/rpmtriggers.c b/lib/rpmtriggers.c
index d541974e8..6fe4db65d 100644
--- a/lib/rpmtriggers.c
+++ b/lib/rpmtriggers.c
@@ -97,19 +97,37 @@ static void rpmtriggersSortAndUniq(rpmtriggers trigs)
     }
 }
 
+static void addTriggers(rpmts ts, Header trigH, rpmsenseFlags filter)
+{
+    int tix = 0;
+    rpmds ds;
+    rpmds triggers = rpmdsNew(trigH, RPMTAG_TRANSFILETRIGGERNAME, 0);
+
+    while ((ds = rpmdsFilterTi(triggers, tix))) {
+	if ((rpmdsNext(ds) >= 0) && (rpmdsFlags(ds) & filter)) {
+	    struct rpmtd_s priorities;
+
+	    if (headerGet(trigH, RPMTAG_TRANSFILETRIGGERPRIORITIES,
+			&priorities, HEADERGET_MINMEM)) {
+		rpmtdSetIndex(&priorities, tix);
+		rpmtriggersAdd(ts->trigs2run, headerGetInstance(trigH),
+				tix, *rpmtdGetUint32(&priorities));
+	    }
+	}
+	rpmdsFree(ds);
+	tix++;
+    }
+    rpmdsFree(triggers);
+}
+
 void rpmtriggersPrepPostUnTransFileTrigs(rpmts ts, rpmte te)
 {
-    rpmdbMatchIterator mi;
     rpmdbIndexIterator ii;
-    Header trigH;
     const void *key;
     size_t keylen;
     rpmfiles files;
-    rpmds rpmdsTriggers;
-    rpmds rpmdsTrigger;
 
     ii = rpmdbIndexIteratorInit(rpmtsGetRdb(ts), RPMDBI_TRANSFILETRIGGERNAME);
-    mi = rpmdbNewIterator(rpmtsGetRdb(ts), RPMDBI_PACKAGES);
     files = rpmteFiles(te);
 
     /* Iterate over file triggers in rpmdb */
@@ -121,39 +139,19 @@ void rpmtriggersPrepPostUnTransFileTrigs(rpmts ts, rpmte te)
 	rpmfi fi = rpmfilesFindPrefix(files, pfx);
 	while (rpmfiNext(fi) >= 0) {
 	    if (RPMFILE_IS_INSTALLED(rpmfiFState(fi))) {
-		/* If yes then store it */
-		rpmdbAppendIterator(mi, rpmdbIndexIteratorPkgOffsets(ii),
-				rpmdbIndexIteratorNumPkgs(ii));
-		break;
+		unsigned int npkg = rpmdbIndexIteratorNumPkgs(ii);
+		const unsigned int *offs = rpmdbIndexIteratorPkgOffsets(ii);
+		/* Save any matching postun triggers */
+		for (int i = 0; i < npkg; i++) {
+		    Header h = rpmdbGetHeaderAt(rpmtsGetRdb(ts), offs[i]);
+		    addTriggers(ts, h, RPMSENSE_TRIGGERPOSTUN);
+		    headerFree(h);
+		}
 	    }
 	}
 	rpmfiFree(fi);
     }
     rpmdbIndexIteratorFree(ii);
-
-    if (rpmdbGetIteratorCount(mi)) {
-	/* Filter triggers and save only trans postun triggers into ts */
-	while ((trigH = rpmdbNextIterator(mi)) != NULL) {
-	    int tix = 0;
-	    rpmdsTriggers = rpmdsNew(trigH, RPMTAG_TRANSFILETRIGGERNAME, 0);
-	    while ((rpmdsTrigger = rpmdsFilterTi(rpmdsTriggers, tix))) {
-		if ((rpmdsNext(rpmdsTrigger) >= 0) &&
-		    (rpmdsFlags(rpmdsTrigger) & RPMSENSE_TRIGGERPOSTUN)) {
-		    struct rpmtd_s priorities;
-
-		    headerGet(trigH, RPMTAG_TRANSFILETRIGGERPRIORITIES,
-				&priorities, HEADERGET_MINMEM);
-		    rpmtdSetIndex(&priorities, tix);
-		    rpmtriggersAdd(ts->trigs2run, rpmdbGetIteratorOffset(mi),
-				    tix, *rpmtdGetUint32(&priorities));
-		}
-		rpmdsFree(rpmdsTrigger);
-		tix++;
-	    }
-	    rpmdsFree(rpmdsTriggers);
-	}
-    }
-    rpmdbFreeIterator(mi);
     rpmfilesFree(files);
 }
 
-- 
2.34.1