Prototype cleanup; use "config.h" where appropriate

common/tftpsubs.h

@@ -62,18 +62,6 @@ int	writeit(FILE *, struct tftphdr **, int, int);
 extern int segsize;
 #define MAX_SEGSIZE	65464
 
-/*
+int pick_port_bind(int sockfd, struct sockaddr_in *myaddr, unsigned int from, unsigned int to);
- * Prototype for xmalloc/xstrdup
- */
-extern void *xmalloc(size_t);
-extern char *xstrdup(const char *);
-
-/*
- * Signal-related stuff
- */
-void (*bsd_signal(int, void (*)(int)))(int);
 
 #endif
-
-
-int pick_port_bind(int sockfd, struct sockaddr_in *myaddr, unsigned int from, unsigned int to);

config.h

@@ -287,6 +287,21 @@ typedef int socklen_t;
 #define EOPTNEG 8
 #endif
 
+/* Prototypes for libxtra functions */
+
+void *xmalloc(size_t);
+char *xstrdup(const char *);
+
+#ifndef HAVE_BSD_SIGNAL
+void (*bsd_signal(int, void (*)(int)))(int);
+#endif
+#ifndef HAVE_DUP2
+int dup2(int, int);
+#endif
+#ifndef HAVE_DAEMON
+int daemon(int, int);
+#endif
+
 /* tftp-hpa version and configuration strings */
 
 #include "version.h"

lib/bsdsignal.c

@@ -4,11 +4,7 @@
  * Use sigaction() to simulate BSD signal()
  */
 
-#include <signal.h>
+#include "config.h"
-#include <stdlib.h>
-#include <string.h>
-
-void (*bsd_signal(int, void (*)(int)))(int);
 
 void (*bsd_signal(int signum, void (*handler)(int)))(int)
 {

lib/xmalloc.c

@@ -5,8 +5,7 @@
  *
  */
 
-#include <stdlib.h>
+#include "config.h"
-#include <stdio.h>
 
 void *xmalloc(size_t size)
 {

lib/xstrdup.c

@@ -5,9 +5,7 @@
  *
  */
 
-#include <stdlib.h>
+#include "config.h"
-#include <string.h>
-#include <stdio.h>
 
 char *xstrdup(const char *s)
 {