udpcksum.h

来自「unix网络编程第一卷socket编程书上的全部源代码」· C头文件 代码 · 共 35 行

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#include	"unp.h"#include	<pcap.h>#include	<netinet/in_systm.h>	/* required for ip.h */#include	<netinet/in.h>#include	<netinet/ip.h>#include	<netinet/ip_var.h>#include	<netinet/udp.h>#include	<netinet/udp_var.h>#include	<net/if.h>#include	<netinet/if_ether.h>#define	TTL_OUT		64				/* outgoing TTL */					/* declare global variables */extern struct sockaddr	*dest, *local;extern socklen_t		destlen, locallen;extern int		datalink;extern char    *device;extern pcap_t  *pd;extern int		rawfd;extern int		snaplen;extern int		verbose;extern int		zerosum;					/* function prototypes */void			 cleanup(int);char			*next_pcap(int *);void			 open_output(void);void			 open_pcap(void);void			 send_dns_query(void);void			 test_udp(void);void			 udp_write(char *, int);struct udpiphdr *udp_read(void);

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