--- /dev/null
+#include "miscfn.h"
+
+#if HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
+#include <string.h>
+
+#include "intl.h"
+#include "rpmlib.h"
+
+static int findMatches(rpmdb db, char * name, char * version, char * release,
+ dbiIndexSet * matches);
+
+/* 0 found matches */
+/* 1 no matches */
+/* 2 error */
+int rpmdbFindByHeader(rpmdb db, Header h, dbiIndexSet * matches) {
+ char * name, * version, * release;
+
+ headerGetEntry(h, RPMTAG_NAME, NULL, (void **) &name, NULL);
+ headerGetEntry(h, RPMTAG_VERSION, NULL, (void **) &version, NULL);
+ headerGetEntry(h, RPMTAG_RELEASE, NULL, (void **) &release, NULL);
+
+ return findMatches(db, name, version, release, matches);
+}
+
+/* 0 found matches */
+/* 1 no matches */
+/* 2 error */
+int rpmdbFindByLabel(rpmdb db, char * arg, dbiIndexSet * matches) {
+ char * localarg, * chptr;
+ char * release;
+ int rc;
+
+ if (!strlen(arg)) return 1;
+
+ /* did they give us just a name? */
+ rc = findMatches(db, arg, NULL, NULL, matches);
+ if (rc != 1) return rc;
+
+ /* maybe a name and a release */
+ localarg = alloca(strlen(arg) + 1);
+ strcpy(localarg, arg);
+
+ chptr = (localarg + strlen(localarg)) - 1;
+ while (chptr > localarg && *chptr != '-') chptr--;
+ if (chptr == localarg) return 1;
+
+ *chptr = '\0';
+ rc = findMatches(db, localarg, chptr + 1, NULL, matches);
+ if (rc != 1) return rc;
+
+ /* how about name-version-release? */
+
+ release = chptr + 1;
+ while (chptr > localarg && *chptr != '-') chptr--;
+ if (chptr == localarg) return 1;
+
+ *chptr = '\0';
+ return findMatches(db, localarg, chptr + 1, release, matches);
+}
+
+/* 0 found matches */
+/* 1 no matches */
+/* 2 error */
+static int findMatches(rpmdb db, char * name, char * version, char * release,
+ dbiIndexSet * matches) {
+ int gotMatches;
+ int rc;
+ int i;
+ char * pkgRelease, * pkgVersion;
+ int count, type;
+ int goodRelease, goodVersion;
+ Header h;
+
+ if ((rc = rpmdbFindPackage(db, name, matches))) {
+ if (rc == -1) return 2; else return 1;
+ }
+
+ if (!version && !release) return 0;
+
+ gotMatches = 0;
+
+ /* make sure the version and releases match */
+ for (i = 0; i < matches->count; i++) {
+ if (matches->recs[i].recOffset) {
+ h = rpmdbGetRecord(db, matches->recs[i].recOffset);
+ if (!h) {
+ rpmError(RPMERR_DBCORRUPT,
+ _("cannot read header at %d for lookup"),
+ matches->recs[i].recOffset);
+ dbiFreeIndexRecord(*matches);
+ return 2;
+ }
+
+ headerGetEntry(h, RPMTAG_VERSION, &type, (void **) &pkgVersion,
+ &count);
+ headerGetEntry(h, RPMTAG_RELEASE, &type, (void **) &pkgRelease,
+ &count);
+
+ goodRelease = goodVersion = 1;
+
+ if (release && strcmp(release, pkgRelease)) goodRelease = 0;
+ if (version && strcmp(version, pkgVersion)) goodVersion = 0;
+
+ if (goodRelease && goodVersion)
+ gotMatches = 1;
+ else
+ matches->recs[i].recOffset = 0;
+ }
+ }
+
+ if (!gotMatches) {
+ dbiFreeIndexRecord(*matches);
+ return 1;
+ }
+
+ return 0;
+}
+