Bug 1307531 - fix derdump leaks, r=ttaubert

--HG--
extra : rebase_source : 46d2b032558ba2e197b9873d0531a94d23e1db1a
extra : amend_source : 4b6815cc95e5f20899d33fbd1c463e22f4ae9204

cmd/derdump/derdump.c

@@ -34,12 +34,13 @@ main(int argc, char **argv)
     char *progName;
     FILE *outFile;
     PRFileDesc *inFile;
-    SECItem der;
+    SECItem der = { siBuffer, NULL, 0 };
     SECStatus rv;
     PRInt16 xp_error;
     PRBool raw = PR_FALSE;
     PLOptState *optstate;
     PLOptStatus status;
+    int retval = -1;
 
     progName = strrchr(argv[0], '/');
     progName = progName ? progName + 1 : argv[0];
@@ -55,7 +56,7 @@ main(int argc, char **argv)
                 if (!inFile) {
                     fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
                             progName, optstate->value);
-                    return -1;
+                    goto cleanup;
                 }
                 break;
 
@@ -64,7 +65,7 @@ main(int argc, char **argv)
                 if (!outFile) {
                     fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
                             progName, optstate->value);
-                    return -1;
+                    goto cleanup;
                 }
                 break;
 
@@ -85,17 +86,19 @@ main(int argc, char **argv)
     if (!outFile)
         outFile = stdout;
 
-    rv = NSS_NoDB_Init(NULL); /* XXX */
+    rv = NSS_NoDB_Init(NULL);
     if (rv != SECSuccess) {
         SECU_PrintPRandOSError(progName);
-        return -1;
+        goto cleanup;
     }
 
     rv = SECU_ReadDERFromFile(&der, inFile, PR_FALSE, PR_FALSE);
     if (rv == SECSuccess) {
         rv = DER_PrettyPrint(outFile, &der, raw);
-        if (rv == SECSuccess)
-            return 0;
+        if (rv == SECSuccess) {
+            retval = 0;
+            goto cleanup;
+        }
     }
 
     xp_error = PORT_GetError();
@@ -105,5 +108,21 @@ main(int argc, char **argv)
     if (errno) {
         SECU_PrintSystemError(progName, "errno=%d", errno);
     }
-    return 1;
+    retval = 1;
+
+cleanup:
+    retval |= NSS_Shutdown();
+    if (inFile) {
+        PR_Close(inFile);
+    }
+    if (outFile) {
+        fflush(outFile);
+        fclose(outFile);
+    }
+    PL_DestroyOptState(optstate);
+    if (der.data) {
+        PORT_Free(der.data);
+    }
+
+    return retval;
 }