introduce bb_putchar(). saves ~1800 on uclibc (less on glibc).

networking/ether-wake.c

@@ -92,7 +92,7 @@ void bb_debug_dump_packet(unsigned char *outpack, int pktsize)
 	printf("packet dump:\n");
 	for (i = 0; i < pktsize; ++i) {
 		printf("%2.2x ", outpack[i]);
-		if (i % 20 == 19) puts("");
+		if (i % 20 == 19) bb_putchar('\n');
 	}
 	printf("\n\n");
 }

networking/hostname.c

@@ -83,7 +83,7 @@ int hostname_main(int argc, char **argv)
 			while (hp->h_addr_list[0]) {
 				printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
 			}
-			puts("");
+			bb_putchar('\n');
 		}
 	}
 	/* Set the hostname */

networking/ifupdown.c

@@ -1259,7 +1259,7 @@ int ifupdown_main(int argc, char **argv)
 			iface_list = iface_list->link;
 		}
 		if (VERBOSE) {
-			puts("");
+			bb_putchar('\n');
 		}
 
 		if (!okay && !FORCE) {

networking/interface.c

@@ -937,7 +937,7 @@ static void ife_print(struct interface *ptr)
 			printf("(auto)");
 	}
 #endif
-	puts("");
+	bb_putchar('\n');
 
 	if (ptr->has_ip) {
 		printf("          %s addr:%s ", ap->name,
@@ -1073,7 +1073,7 @@ static void ife_print(struct interface *ptr)
 	if (ptr->outfill || ptr->keepalive)
 		printf("  Outfill:%d  Keepalive:%d", ptr->outfill, ptr->keepalive);
 #endif
-	puts("");
+	bb_putchar('\n');
 
 	/* If needed, display the interface statistics. */
 
@@ -1122,9 +1122,9 @@ static void ife_print(struct interface *ptr)
 		}
 		if (ptr->map.dma)
 			printf("DMA chan:%x ", ptr->map.dma);
-		puts("");
+		bb_putchar('\n');
 	}
-	puts("");
+	bb_putchar('\n');
 }
 
 

networking/libiproute/iptunnel.c

@@ -482,7 +482,7 @@ static void do_tunnels_list(struct ip_tunnel_parm *p)
 		    (p->i_key && p1.i_key != p->i_key))
 			continue;
 		print_tunnel(&p1);
-		puts("");
+		bb_putchar('\n');
 	}
 }
 
@@ -512,7 +512,7 @@ static int do_show(int argc, char **argv)
 		return -1;
 
 	print_tunnel(&p);
-	puts("");
+	bb_putchar('\n');
 	return 0;
 }
 

networking/nslookup.c

@@ -112,7 +112,7 @@ static void server_print(void)
 	print_host(server, "Server:");
 	if (ENABLE_FEATURE_CLEAN_UP)
 		free(server);
-	puts("");
+	bb_putchar('\n');
 }
 
 /* alter the global _res nameserver structure to use

networking/traceroute.c

@@ -1322,7 +1322,7 @@ int traceroute_main(int argc, char **argv)
 				printf(" *");
 			(void)fflush(stdout);
 		}
-		putchar('\n');
+		bb_putchar('\n');
 		if (got_there ||
 		    (unreachable > 0 && unreachable >= nprobes - 1))
 			break;

networking/wget.c

@@ -142,7 +142,7 @@ static void progressmeter(int flag)
 		/* last call to progressmeter */
 		alarm(0);
 		transferred = 0;
-		putc('\n', stderr);
+		fputc('\n', stderr);
 	} else {
 		if (flag == -1) {
 			/* first call to progressmeter */