diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
index 0a7d39a..24b2114 100644
--- a/ip/ipxfrm.c
+++ b/ip/ipxfrm.c
@@ -283,7 +283,7 @@
 	char abuf[256];
 
 	if (title)
-		fprintf(fp, title);
+		fputs(title, fp);
 
 	memset(abuf, '\0', sizeof(abuf));
 	fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
@@ -294,7 +294,7 @@
 	fprintf(fp, "%s", _SL_);
 
 	if (prefix)
-		fprintf(fp, prefix);
+		fputs(prefix, fp);
 	fprintf(fp, "\t");
 
 	fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto));
@@ -350,12 +350,12 @@
 void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix)
 {
 	if (prefix)
-		fprintf(fp, prefix);
+		fputs(prefix, fp);
 	fprintf(fp, "stats:");
 	fprintf(fp, "%s", _SL_);
 
 	if (prefix)
-		fprintf(fp, prefix);
+		fputs(prefix, fp);
 	fprintf(fp, "  ");
 	fprintf(fp, "replay-window %u ", s->replay_window);
 	fprintf(fp, "replay %u ", s->replay);
@@ -391,12 +391,12 @@
 {
 	if (cfg) {
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "lifetime config:");
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "limit: ");
 		fprintf(fp, "soft ");
@@ -407,7 +407,7 @@
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "limit: ");
 		fprintf(fp, "soft ");
@@ -418,7 +418,7 @@
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "expire add: ");
 		fprintf(fp, "soft ");
@@ -429,7 +429,7 @@
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "expire use: ");
 		fprintf(fp, "soft ");
@@ -441,19 +441,19 @@
 	}
 	if (cur) {
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "lifetime current:");
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "%llu(bytes), ", (unsigned long long) cur->bytes);
 		fprintf(fp, "%llu(packets)", (unsigned long long) cur->packets);
 		fprintf(fp, "%s", _SL_);
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "  ");
 		fprintf(fp, "add %s ", strxf_time(cur->add_time));
 		fprintf(fp, "use %s", strxf_time(cur->use_time));
@@ -474,7 +474,7 @@
 		f = preferred_family;
 
 	if (prefix)
-		fprintf(fp, prefix);
+		fputs(prefix, fp);
 
 	memset(abuf, '\0', sizeof(abuf));
 	fprintf(fp, "src %s/%u ", rt_addr_n2a(f, sizeof(sel->saddr),
@@ -533,7 +533,7 @@
 	int i;
 
 	if (prefix)
-		fprintf(fp, prefix);
+		fputs(prefix, fp);
 
 	fprintf(fp, "%s ", strxf_algotype(type));
 
@@ -596,7 +596,7 @@
 
 	if (ntmpls <= 0) {
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "(ERROR \"tmpl\" truncated)");
 		fprintf(fp, "%s", _SL_);
 		return;
@@ -606,14 +606,14 @@
 		struct xfrm_user_tmpl *tmpl = &tmpls[i];
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 
 		xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
 				   tmpl->reqid, family, 0, fp, prefix, "tmpl ");
 
 		if (show_stats > 0 || tmpl->optional) {
 			if (prefix)
-				fprintf(fp, prefix);
+				fputs(prefix, fp);
 			fprintf(fp, "\t");
 			switch (tmpl->optional) {
 			case 0:
@@ -636,7 +636,7 @@
 
 		if (show_stats > 0) {
 			if (prefix)
-				fprintf(fp, prefix);
+				fputs(prefix, fp);
 			fprintf(fp, "\t");
 			fprintf(fp, "%s-mask %s ",
 				strxf_algotype(XFRMA_ALG_CRYPT),
@@ -685,7 +685,7 @@
 		char abuf[256];
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "encap ");
 
 		if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) {
@@ -728,7 +728,7 @@
 		xfrm_address_t *coa;
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "coa ");
 
 		coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]);
@@ -750,7 +750,7 @@
 		__u64 lastused;
 
 		if (prefix)
-			fprintf(fp, prefix);
+			fputs(prefix, fp);
 		fprintf(fp, "lastused ");
 
 		if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
@@ -792,7 +792,7 @@
 		STRBUF_CAT(buf, prefix);
 	STRBUF_CAT(buf, "\t");
 
-	fprintf(fp, buf);
+	fputs(buf, fp);
 	fprintf(fp, "replay-window %u ", xsinfo->replay_window);
 	if (show_stats > 0)
 		fprintf(fp, "seq 0x%08u ", xsinfo->seq);
@@ -842,7 +842,7 @@
 		STRBUF_CAT(buf, prefix);
 	STRBUF_CAT(buf, "\t");
 
-	fprintf(fp, buf);
+	fputs(buf, fp);
 	fprintf(fp, "dir ");
 	switch (xpinfo->dir) {
 	case XFRM_POLICY_IN: