diff --git a/contrib/pageinspect/btreefuncs.cpp b/contrib/pageinspect/btreefuncs.cpp
index 620c3b828..b615d2f39 100644
--- a/contrib/pageinspect/btreefuncs.cpp
+++ b/contrib/pageinspect/btreefuncs.cpp
@@ -210,31 +210,45 @@ Datum bt_page_stats(PG_FUNCTION_ARGS)
         elog(ERROR, "return type must be a row type");
 
     j = 0;
+    int ret = 0;
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.blkno);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.blkno);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%c", stat.type);
+    ret = snprintf_s(values[j++], 32, 31, "%c", stat.type);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.live_items);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.live_items);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.dead_items);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.dead_items);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.avg_item_size);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.avg_item_size);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.page_size);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.page_size);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.free_size);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.free_size);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.btpo_prev);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.btpo_prev);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.btpo_next);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.btpo_next);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    if (stat.type == 'd')
-        snprintf(values[j++], 64, XID_FMT, stat.btpo.xact);
-    else
-        snprintf(values[j++], 32, "%d", stat.btpo.level);
+    if (stat.type == 'd'){
+        ret = snprintf_s(values[j++], 64, 63, XID_FMT, stat.btpo.xact);
+        securec_check_ss(ret, "", "");
+    } else {
+        ret = snprintf_s(values[j++], 32, 31, "%d", stat.btpo.level);
+        securec_check_ss(ret, "", "");
+    }
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", stat.btpo_flags);
+    ret = snprintf_s(values[j++], 32, 31, "%d", stat.btpo_flags);
+    securec_check_ss(ret, "", "");
 
     tuple = BuildTupleFromCStrings(TupleDescGetAttInMetadata(tupleDesc), values);
 
@@ -317,7 +331,8 @@ Datum bt_page_items(PG_FUNCTION_ARGS)
         uargs = (user_args*)palloc(sizeof(struct user_args));
 
         uargs->page = (char*)palloc(BLCKSZ);
-        memcpy(uargs->page, BufferGetPage(buffer), BLCKSZ);
+        int rc = memcpy_s(uargs->page, BLCKSZ, BufferGetPage(buffer), BLCKSZ);
+        securec_check_c(rc, "\0", "\0");
 
         UnlockReleaseBuffer(buffer);
         relation_close(rel, AccessShareLock);
@@ -363,25 +378,36 @@ Datum bt_page_items(PG_FUNCTION_ARGS)
 
         j = 0;
         values[j] = (char*)palloc(32);
-        snprintf(values[j++], 32, "%d", uargs->offset);
+        int ret = 0;
+        ret = snprintf_s(values[j++], 32, 31, "%d", uargs->offset);
+        securec_check_ss(ret, "", "");
         values[j] = (char*)palloc(32);
-        snprintf(values[j++], 32, "(%u,%u)", BlockIdGetBlockNumber(&(itup->t_tid.ip_blkid)), itup->t_tid.ip_posid);
+        ret = snprintf_s(values[j++], 32, 31, "(%u,%u)", BlockIdGetBlockNumber(&(itup->t_tid.ip_blkid)), itup->t_tid.ip_posid);
+        securec_check_ss(ret, "", "");
         values[j] = (char*)palloc(32);
-        snprintf(values[j++], 32, "%d", (int)IndexTupleSize(itup));
+        ret = snprintf_s(values[j++], 32, 31, "%d", (int)IndexTupleSize(itup));
+        securec_check_ss(ret, "", "");
         values[j] = (char*)palloc(32);
-        snprintf(values[j++], 32, "%c", IndexTupleHasNulls(itup) ? 't' : 'f');
+        ret = snprintf_s(values[j++], 32, 31, "%c", IndexTupleHasNulls(itup) ? 't' : 'f');
+        securec_check_ss(ret, "", "");
         values[j] = (char*)palloc(32);
-        snprintf(values[j++], 32, "%c", IndexTupleHasVarwidths(itup) ? 't' : 'f');
+        ret = snprintf_s(values[j++], 32, 31, "%c", IndexTupleHasVarwidths(itup) ? 't' : 'f');
+        securec_check_ss(ret, "", "");
 
         ptr = (char*)itup + IndexInfoFindDataOffset(itup->t_info);
         dlen = IndexTupleSize(itup) - IndexInfoFindDataOffset(itup->t_info);
         dump = (char*)palloc0(dlen * 3 + 1);
+        int length = dlen * 3 + 1;
         values[j] = dump;
         for (off = 0; off < dlen; off++) {
-            if (off > 0)
+            if (off > 0) {
                 *dump++ = ' ';
-            sprintf(dump, "%02x", *(ptr + off) & 0xff);
+                length--;
+            }
+            ret = sprintf_s(dump, length, "%02x", *(ptr + off) & 0xff);
+            securec_check_ss(ret, "", "");
             dump += 2;
+            length -= 2;
         }
 
         tuple = BuildTupleFromCStrings(fctx->attinmeta, values);
@@ -449,18 +475,26 @@ Datum bt_metap(PG_FUNCTION_ARGS)
         elog(ERROR, "return type must be a row type");
 
     j = 0;
+    int ret = 0;
+
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_magic);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_magic);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_version);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_version);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_root);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_root);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_level);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_level);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_fastroot);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_fastroot);
+    securec_check_ss(ret, "", "");
     values[j] = (char*)palloc(32);
-    snprintf(values[j++], 32, "%d", metad->btm_fastlevel);
+    ret = snprintf_s(values[j++], 32, 31, "%d", metad->btm_fastlevel);
+    securec_check_ss(ret, "", "");
 
     tuple = BuildTupleFromCStrings(TupleDescGetAttInMetadata(tupleDesc), values);
 
diff --git a/contrib/pageinspect/ginfuncs.cpp b/contrib/pageinspect/ginfuncs.cpp
index 3dd688b1c..2e08b7088 100644
--- a/contrib/pageinspect/ginfuncs.cpp
+++ b/contrib/pageinspect/ginfuncs.cpp
@@ -67,7 +67,9 @@ Datum gin_metapage_info(PG_FUNCTION_ARGS)
 
     metadata = GinPageGetMeta(page);
 
-    memset(nulls, 0, sizeof(nulls));
+    int nRet = 0;
+    nRet = memset_s(nulls, sizeof(nulls), 0, sizeof(nulls));
+    securec_check_c(nRet, "\0", "\0");
 
     values[0] = Int64GetDatum(metadata->head);
     values[1] = Int64GetDatum(metadata->tail);
@@ -144,7 +146,9 @@ Datum gin_page_opaque_info(PG_FUNCTION_ARGS)
         flags[nflags++] = DirectFunctionCall1(to_hex32, Int32GetDatum(flagbits));
     }
 
-    memset(nulls, 0, sizeof(nulls));
+    int nRet = 0;
+    nRet = memset_s(nulls, sizeof(nulls), 0, sizeof(nulls));
+    securec_check_c(nRet, "\0", "\0");
 
     values[0] = Int64GetDatum(opaq->rightlink);
     values[1] = Int64GetDatum(opaq->maxoff);
@@ -234,7 +238,9 @@ Datum gin_leafpage_items(PG_FUNCTION_ARGS)
         ItemPointer tids;
         Datum* tids_datum = NULL;
 
-        memset(nulls, 0, sizeof(nulls));
+        int nRet = 0;
+        nRet = memset_s(nulls, sizeof(nulls), 0, sizeof(nulls));
+        securec_check_c(nRet, "\0", "\0");
 
         values[0] = ItemPointerGetDatum(&cur->first);
         values[1] = UInt16GetDatum(cur->nbytes);
diff --git a/contrib/pageinspect/heapfuncs.cpp b/contrib/pageinspect/heapfuncs.cpp
index 582e0fc91..a089dbc70 100755
--- a/contrib/pageinspect/heapfuncs.cpp
+++ b/contrib/pageinspect/heapfuncs.cpp
@@ -121,7 +121,9 @@ Datum heap_page_items(PG_FUNCTION_ARGS)
         uint16 lp_flags;
         uint16 lp_len;
 
-        memset(nulls, 0, sizeof(nulls));
+        int nRet = 0;
+        nRet = memset_s(nulls, sizeof(nulls), 0, sizeof(nulls));
+        securec_check_c(nRet, "\0", "\0");
 
         /* Extract information from the line pointer */
 
diff --git a/contrib/pageinspect/rawpage.cpp b/contrib/pageinspect/rawpage.cpp
index ef9baae3e..d8be2b212 100644
--- a/contrib/pageinspect/rawpage.cpp
+++ b/contrib/pageinspect/rawpage.cpp
@@ -154,7 +154,8 @@ static bytea* get_raw_page_internal(text* relname, ForkNumber forknum, BlockNumb
     buf = ReadBufferExtended(rel, forknum, blkno, RBM_NORMAL, NULL);
     LockBuffer(buf, BUFFER_LOCK_SHARE);
 
-    memcpy(raw_page_data, BufferGetPage(buf), BLCKSZ);
+    int rc = memcpy_s(raw_page_data, BLCKSZ, BufferGetPage(buf), BLCKSZ);
+    securec_check_c(rc, "\0", "\0");
 
     LockBuffer(buf, BUFFER_LOCK_UNLOCK);
     ReleaseBuffer(buf);
@@ -305,7 +306,8 @@ Datum page_compress_meta(PG_FUNCTION_ARGS)
 
     bytea* dumpVal = (bytea*)palloc(VARHDRSZ + output->len);
     SET_VARSIZE(dumpVal, VARHDRSZ + output->len);
-    memcpy(VARDATA(dumpVal), output->data, output->len);
+    int rc = memcpy_s(VARDATA(dumpVal), output->len, output->data, output->len);
+    securec_check_c(rc, "\0", "\0");
     pfree(output->data);
     pfree(output);
 
@@ -324,7 +326,8 @@ Datum page_compress_meta_usage(PG_FUNCTION_ARGS)
 
     bytea* dumpVal = (bytea*)palloc(VARHDRSZ + help_size);
     SET_VARSIZE(dumpVal, VARHDRSZ + help_size);
-    memcpy(VARDATA(dumpVal), help, help_size);
+    int rc = memcpy_s(VARDATA(dumpVal), help_size, help, help_size);
+    securec_check_c(rc, "\0", "\0");
 
     PG_RETURN_TEXT_P(dumpVal);
 }
@@ -410,7 +413,8 @@ static char* read_raw_page(Relation rel, ForkNumber forknum, BlockNumber blkno)
     raw_page = (char*)palloc(BLCKSZ);
     buf = ReadBufferExtended(rel, forknum, blkno, RBM_NORMAL, NULL);
     LockBuffer(buf, BUFFER_LOCK_SHARE);
-    memcpy(raw_page, BufferGetPage(buf), BLCKSZ);
+    int rc = memcpy_s(raw_page, BLCKSZ, BufferGetPage(buf), BLCKSZ);
+    securec_check_c(rc, "\0", "\0");
     LockBuffer(buf, BUFFER_LOCK_UNLOCK);
     ReleaseBuffer(buf);