diff --git a/doc/man-pages/pod1/rxgen.pod b/doc/man-pages/pod1/rxgen.pod
index f14e26ce01..ac724b4915 100644
--- a/doc/man-pages/pod1/rxgen.pod
+++ b/doc/man-pages/pod1/rxgen.pod
@@ -669,7 +669,7 @@ Sample CLIENT code:
     vldb_list       linkedvldbs;
     vldblist        vllist, vllist1;
 
-    bzero(&linkedvldbs, sizeof(vldb_list));
+    memset(&linkedvldbs, 0, sizeof(vldb_list));
     code = VL_LinkedList(&attributes, &nentries, &linkedvldbs);
     if (!code) {
         printf("We got %d vldb entries\n", nentries);
diff --git a/doc/protocol/rx-spec.h b/doc/protocol/rx-spec.h
index f8e42c150d..d3ad9b05d9 100644
--- a/doc/protocol/rx-spec.h
+++ b/doc/protocol/rx-spec.h
@@ -4389,7 +4389,7 @@
  * \par
  * \#define rx_Read(call, buf, nbytes) 
  * \n ((call)->nLeft > (nbytes) ? 
- * \n bcopy((call)->bufPtr, (buf), (nbytes)), 
+ * \n memcpy((buf), (call)->bufPtr, (nbytes)),
  * \n (call)->nLeft -= (nbytes), (call)->bufPtr += (nbytes), (nbytes) 
  * \n : rx_ReadProc((call), (buf), (nbytes))) 
  * \par
@@ -4410,7 +4410,7 @@
  * \par
  * \#define rx_Write(call, buf, nbytes) 
  * \n ((call)->nFree > (nbytes) ? 
- * \n bcopy((buf), (call)->bufPtr, (nbytes)), 
+ * \n memcpy((call)->bufPtr, (buf), (nbytes)),
  * \n (call)->nFree -= (nbytes), 
  * \n (call)->bufPtr += (nbytes), (nbytes) 
  * \n : rx_WriteProc((call), (buf), (nbytes))) 
@@ -5269,7 +5269,7 @@
  * 		pn, rn, hostEntP->h_length, sizeof(u_long)); 
  * 		exit(1); 
  * 	} 
- * 	bcopy(hostEntP->h_addr, (char *)&hostIPAddr, sizeof(hostIPAddr)); 
+ * 	memcpy(&hostIPAddr, hostEntP->h_addr, sizeof(hostIPAddr));
  * 	return(hostIPAddr); 
  * } /* GetIpAddress */
  * \endcode
diff --git a/src/afs/VNOPS/afs_vnop_strategy.c b/src/afs/VNOPS/afs_vnop_strategy.c
index c4296bb6f3..bb12d60481 100644
--- a/src/afs/VNOPS/afs_vnop_strategy.c
+++ b/src/afs/VNOPS/afs_vnop_strategy.c
@@ -70,7 +70,7 @@ int afs_ustrategy(struct buf *abp)
     if ((abp->b_flags & B_READ) == B_READ) {
 #endif
 	/* read b_bcount bytes into kernel address b_un.b_addr starting
-	 * at byte DEV_BSIZE * b_blkno.  Bzero anything we can't read,
+	 * at byte DEV_BSIZE * b_blkno.  Zero anything we can't read,
 	 * and finally call iodone(abp).  File is in abp->b_vp.  Credentials
 	 * are from u area??
 	 */
diff --git a/src/afs/afs_dcache.c b/src/afs/afs_dcache.c
index 8a941d6af0..c1c6413a69 100644
--- a/src/afs/afs_dcache.c
+++ b/src/afs/afs_dcache.c
@@ -2029,7 +2029,7 @@ afs_GetDCache(struct vcache *avc, afs_size_t abyte,
 
     shortcut = 0;
 
-    /* check hints first! (might could use bcmp or some such...) */
+    /* check hints first! */
     if ((tdc = avc->dchint)) {
 	int dcLocked;
 
diff --git a/src/afs/afs_user.c b/src/afs/afs_user.c
index 5631b37d0c..c87c35bfaa 100644
--- a/src/afs/afs_user.c
+++ b/src/afs/afs_user.c
@@ -335,7 +335,7 @@ afs_ComputePAGStats(void)
 
     /*
      * Initialize the tallies, then sweep through each hash chain.  We
-     * can't bzero the structure, since some fields are cumulative over
+     * can't zero the structure, since some fields are cumulative over
      * the CM's lifetime.
      */
     authP = &(afs_stats_cmfullperf.authent);
diff --git a/src/aklog/linked_list.c b/src/aklog/linked_list.c
index 289d645bea..3e9eae14c5 100644
--- a/src/aklog/linked_list.c
+++ b/src/aklog/linked_list.c
@@ -40,7 +40,7 @@ void ll_init(linked_list *list)
     }
 
     /* This sets everything to zero, which is what we want. */
-    bzero((char *)list, sizeof(linked_list));
+    memset(list, 0, sizeof(linked_list));
 }
 
 ll_node *ll_add_node(linked_list *list, ll_end which_end)
diff --git a/src/bozo/bos_util.c b/src/bozo/bos_util.c
index 62293a270b..97709a9edb 100644
--- a/src/bozo/bos_util.c
+++ b/src/bozo/bos_util.c
@@ -136,7 +136,7 @@ main(int argc, char **argv)
 	    exit(1);
 	}
 	kvno = atoi(argv[2]);
-	bzero(tkey, sizeof(tkey));
+	memset(tkey, 0, sizeof(tkey));
 	code = kname_parse(name, inst, realm, argv[4]);
 	if (code != 0) {
 	    printf("Invalid kerberos name\n");
diff --git a/src/budb/database.c b/src/budb/database.c
index a68b1f241c..ce5c2ad9a9 100644
--- a/src/budb/database.c
+++ b/src/budb/database.c
@@ -213,7 +213,7 @@ UpdateCache(struct ubik_trans *ut, void *rock)
 		db.h.lastUpdate = db.h.lastDumpId = htonl(time(0));
 		db.h.eofPtr = htonl(sizeof(db.h));
 
-		/* text ptrs cleared by bzero */
+		/* text ptrs cleared by memset */
 		ht_DBInit();
 
 		code = dbwrite(ut, 0, (char *)&db.h, sizeof(db.h));
diff --git a/src/kauth/ka-forwarder.c b/src/kauth/ka-forwarder.c
index 8d82acc576..55d46064fc 100644
--- a/src/kauth/ka-forwarder.c
+++ b/src/kauth/ka-forwarder.c
@@ -108,7 +108,7 @@ setup_servers(int argc, char **argv)
 		fprintf(stderr, "%s: unknown host %s\n", prog, host);
 		exit(1);
 	    }
-	    bcopy(h->h_addr, &fwdaddr, 4);
+	    memcpy(&fwdaddr, h->h_addr, 4);
 	}
 
 	servers[i].sin_family = AF_INET;
@@ -221,8 +221,8 @@ main(int argc, char **argv)
 
 	    to = &reply;
 	    reply.sin_family = AF_INET;
-	    bcopy(bufp, &reply.sin_addr.s_addr, 4);
-	    bcopy(bufp + 4, &reply.sin_port, 2);
+	    memcpy(&reply.sin_addr.s_addr, bufp, 4);
+	    memcpy(&reply.sin_port, bufp + 4, 2);
 	    sendptr = bufp + 8;
 	    sendlen = rv - 8;
 	}
@@ -232,8 +232,8 @@ main(int argc, char **argv)
 	    cur_server = (cur_server + 1) % num_servers;
 	    to = &servers[cur_server];
 
-	    bcopy(&from.sin_addr.s_addr, bufp - 8, 4);
-	    bcopy(&from.sin_port, bufp - 4, 2);
+	    memcpy(bufp - 8, &from.sin_addr.s_addr, 4);
+	    memcpy(bufp - 4, &from.sin_port, 2);
 
 	    sendptr = bufp - 8;
 	    sendlen = rv + 8;
diff --git a/src/kauth/knfs.c b/src/kauth/knfs.c
index 8b6dd8297a..020ab3c8c2 100644
--- a/src/kauth/knfs.c
+++ b/src/kauth/knfs.c
@@ -260,7 +260,7 @@ NFSCopyToken(afs_int32 ahost, afs_int32 auid)
     char space[1200];
     struct ClearToken ct;
     afs_int32 index, newIndex;
-    afs_int32 temp;		/* for bcopy */
+    afs_int32 temp;
     char *tp;
     struct ViceIoctl blob;
 
diff --git a/src/rx/rx.c b/src/rx/rx.c
index ab5bbb1196..5071287e14 100644
--- a/src/rx/rx.c
+++ b/src/rx/rx.c
@@ -3096,7 +3096,7 @@ rxi_FindPeer(afs_uint32 host, u_short port, int create)
     }
     if (!pp) {
 	if (create) {
-	    pp = rxi_AllocPeer();	/* This bzero's *pp */
+	    pp = rxi_AllocPeer();	/* This zeroes *pp */
 	    pp->host = host;	/* set here or in InitPeerParams is zero */
 	    pp->port = port;
 #ifdef AFS_RXERRQ_ENV
@@ -3219,7 +3219,7 @@ rxi_FindConnection(osi_socket socket, afs_uint32 host,
             *unknownService = 1;
 	    return (struct rx_connection *)0;
 	}
-	conn = rxi_AllocConnection();	/* This bzero's the connection */
+	conn = rxi_AllocConnection();	/* This zeroes the connection */
 	MUTEX_INIT(&conn->conn_call_lock, "conn call lock", MUTEX_DEFAULT, 0);
 	MUTEX_INIT(&conn->conn_data_lock, "conn data lock", MUTEX_DEFAULT, 0);
 	CV_INIT(&conn->conn_call_cv, "conn call cv", CV_DEFAULT, 0);
diff --git a/src/rx/rx_user.c b/src/rx/rx_user.c
index 15695265ec..a93dd22769 100644
--- a/src/rx/rx_user.c
+++ b/src/rx/rx_user.c
@@ -705,7 +705,7 @@ rxi_InitPeerParams(struct rx_peer *pp)
 
     pp->ifMTU = 0;
     rx_rto_setPeerTimeoutSecs(pp, 2);
-    /* I don't initialize these, because I presume they are bzero'd...
+    /* I don't initialize these, because I presume they are zeroed...
      * pp->burstSize pp->burst pp->burstWait.sec pp->burstWait.usec
      */
 
diff --git a/src/tests/fsx.c b/src/tests/fsx.c
index 2ce2ee0adb..479159cd5f 100644
--- a/src/tests/fsx.c
+++ b/src/tests/fsx.c
@@ -296,7 +296,7 @@ check_buffers(unsigned offset, unsigned size)
     unsigned op = 0;
     unsigned bad = 0;
 
-    if (bcmp(good_buf + offset, temp_buf, size) != 0) {
+    if (memcmp(good_buf + offset, temp_buf, size) != 0) {
 	prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n", offset, size);
 	prt("OFFSET\tGOOD\tBAD\tRANGE\n");
 	while (size > 0) {
@@ -500,7 +500,7 @@ dowrite(unsigned offset, unsigned size)
     gendata(original_buf, good_buf, offset, size);
     if (file_size < offset + size) {
 	if (file_size < offset)
-	    bzero(good_buf + file_size, offset - file_size);
+	    memset(good_buf + file_size, 0, offset - file_size);
 	file_size = offset + size;
 	if (lite) {
 	    warn("Lite file size bug in fsx!");
@@ -556,7 +556,7 @@ domapwrite(unsigned offset, unsigned size)
     gendata(original_buf, good_buf, offset, size);
     if (file_size < offset + size) {
 	if (file_size < offset)
-	    bzero(good_buf + file_size, offset - file_size);
+	    memset(good_buf + file_size, 0, offset - file_size);
 	file_size = offset + size;
 	if (lite) {
 	    warn("Lite file size bug in fsx!");
@@ -618,7 +618,7 @@ dotruncate(unsigned size)
     log4(OP_TRUNCATE, size, (unsigned)file_size, 0);
 
     if (size > file_size)
-	bzero(good_buf + file_size, size - file_size);
+	memset(good_buf + file_size, 0, size - file_size);
     file_size = size;
 
     if (testcalls <= simulatedopcount)
diff --git a/src/tools/dumpscan/afsdump_xsed.c b/src/tools/dumpscan/afsdump_xsed.c
index cd5208693c..877c29625c 100644
--- a/src/tools/dumpscan/afsdump_xsed.c
+++ b/src/tools/dumpscan/afsdump_xsed.c
@@ -339,7 +339,7 @@ main(int argc, char **argv)
 	exit(2);
     }
 
-    bzero(&dp, sizeof(dp));
+    memset(&dp, 0, sizeof(dp));
     dp.cb_error = my_error_cb;
     dp.repair_flags = repairflags;
     if (X->is_seekable)
@@ -365,7 +365,7 @@ main(int argc, char **argv)
 	dt_uint64 where;
 
 	dp.print_flags = printflags & DSPRINT_DEBUG;
-	bzero(&phi, sizeof(phi));
+	memset(&phi, 0, sizeof(phi));
 	phi.p = &dp;
 
 	if ((r = xftell(X, &where))
diff --git a/src/vol/vol-salvage.c b/src/vol/vol-salvage.c
index d2300efcaf..dc3df1d6ba 100644
--- a/src/vol/vol-salvage.c
+++ b/src/vol/vol-salvage.c
@@ -2426,7 +2426,7 @@ SalvageVolumeHeaderFile(struct SalvInfo *salvinfo, struct InodeSummary *isp,
 
     for (i = 0; i < MAXINODETYPE; i++) {
 	if (stuff[i].inodeType == VI_LINKTABLE) {
-	    /* Gross hack: SalvageHeader does a bcmp on the volume header.
+	    /* Gross hack: SalvageHeader does a memcmp on the volume header.
 	     * And we may have recreated the link table earlier, so set the
 	     * RW header as well. The header magic was already checked.
 	     */
diff --git a/src/vol/volume.c b/src/vol/volume.c
index 3d2564d880..e4e5122963 100644
--- a/src/vol/volume.c
+++ b/src/vol/volume.c
@@ -3236,7 +3236,7 @@ attach2(Error * ec, VolumeId volumeId, char *path, struct DiskPartition64 *partp
 
 	/*
 	 * We just read in the diskstuff part of the header.  If the detailed
-	 * volume stats area has not yet been initialized, we should bzero the
+	 * volume stats area has not yet been initialized, we should zero the
 	 * area and mark it as initialized.
 	 */
 	if (!(V_stat_initialized(vp))) {
@@ -6761,7 +6761,7 @@ VAdjustVolumeStatistics_r(Volume * vp)
 	V_dayUseDate(vp) = Midnight(now);
 
 	/*
-	 * All we need to do is bzero the entire VOL_STATS_BYTES of
+	 * All we need to do is zero the entire VOL_STATS_BYTES of
 	 * the detailed volume statistics area.
 	 */
 	memset((V_stat_area(vp)), 0, VOL_STATS_BYTES);