UNIX网络编程之旅-配置unp.h头文件环境

最近在学习Unix网络编程（UNP），书中steven在处理网络编程时只用了一个#include “unp.h”相当有个性并且也很便捷于是我把第三版的源代码编译实现了这个过程，算是一种个性化的开发环境的搭建吧，顺便把过程记录下来，以便自己以后查阅。首先去网上找到源代码包unpv.13e.tar.gz 一找一大堆解压缩到你的某个目录，unpv13e里面大致有这些目录

西瓜游侠

1166人浏览 · 2016-03-19 16:41:18

西瓜游侠 · 2016-03-19 16:41:18 发布

最近在学习Unix网络编程（UNP），书中steven在处理网络编程时只用了一个#include “unp.h” 相当有个性并且也很便捷

unp.h文件:

/* include unph */
/* Our own header.  Tabs are set for 4 spaces, not 8 */

#ifndef	__unp_h
#define	__unp_h

#include	"config.h"	/* configuration options for current OS */
							/* "../config.h" is generated by configure */

#define MAX_LINE 2048

/* If anything changes in the following list of #includes, must change
   acsite.m4 also, for configure's tests. */

#include	<sys/types.h>	/* basic system data types */
#include	<sys/socket.h>	/* basic socket definitions */
#if TIME_WITH_SYS_TIME
#include	<sys/time.h>	/* timeval{} for select() */
#include	<time.h>		/* timespec{} for pselect() */
#else
#if HAVE_SYS_TIME_H
#include	<sys/time.h>	/* includes <time.h> unsafely */
#else
#include	<time.h>		/* old system? */
#endif
#endif
#include	<netinet/in.h>	/* sockaddr_in{} and other Internet defns */
#include	<arpa/inet.h>	/* inet(3) functions */
#include	<errno.h>
#include	<fcntl.h>		/* for nonblocking */
#include	<netdb.h>
#include	<signal.h>
#include	<stdio.h>
#include	<stdlib.h>
#include	<string.h>
#include	<sys/stat.h>	/* for S_xxx file mode constants */
#include	<sys/uio.h>		/* for iovec{} and readv/writev */
#include	<unistd.h>
#include	<sys/wait.h>
#include	<sys/un.h>		/* for Unix domain sockets */

#ifdef	HAVE_SYS_SELECT_H
# include	<sys/select.h>	/* for convenience */
#endif

#ifdef	HAVE_SYS_SYSCTL_H
#ifdef	HAVE_SYS_PARAM_H
# include	<sys/param.h>	/* OpenBSD prereq for sysctl.h */
#endif
# include	<sys/sysctl.h>
#endif

#ifdef	HAVE_POLL_H
# include	<poll.h>		/* for convenience */
#endif

#ifdef	HAVE_SYS_EVENT_H
# include	<sys/event.h>	/* for kqueue */
#endif

#ifdef	HAVE_STRINGS_H
# include	<strings.h>		/* for convenience */
#endif

/* Three headers are normally needed for socket/file ioctl's:
 * <sys/ioctl.h>, <sys/filio.h>, and <sys/sockio.h>.
 */
#ifdef	HAVE_SYS_IOCTL_H
# include	<sys/ioctl.h>
#endif
#ifdef	HAVE_SYS_FILIO_H
# include	<sys/filio.h>
#endif
#ifdef	HAVE_SYS_SOCKIO_H
# include	<sys/sockio.h>
#endif

#ifdef	HAVE_PTHREAD_H
# include	<pthread.h>
#endif

#ifdef HAVE_NET_IF_DL_H
# include	<net/if_dl.h>
#endif

#ifdef HAVE_NETINET_SCTP_H
#include	<netinet/sctp.h>
#endif

/* OSF/1 actually disables recv() and send() in <sys/socket.h> */
#ifdef	__osf__
#undef	recv
#undef	send
#define	recv(a,b,c,d)	recvfrom(a,b,c,d,0,0)
#define	send(a,b,c,d)	sendto(a,b,c,d,0,0)
#endif

#ifndef	INADDR_NONE
/* $$.Ic INADDR_NONE$$ */
#define	INADDR_NONE	0xffffffff	/* should have been in <netinet/in.h> */
#endif

#ifndef	SHUT_RD				/* these three POSIX names are new */
#define	SHUT_RD		0	/* shutdown for reading */
#define	SHUT_WR		1	/* shutdown for writing */
#define	SHUT_RDWR	2	/* shutdown for reading and writing */
/* $$.Ic SHUT_RD$$ */
/* $$.Ic SHUT_WR$$ */
/* $$.Ic SHUT_RDWR$$ */
#endif

/* *INDENT-OFF* */
#ifndef INET_ADDRSTRLEN
/* $$.Ic INET_ADDRSTRLEN$$ */
#define	INET_ADDRSTRLEN		16	/* "ddd.ddd.ddd.ddd\0"
								    1234567890123456 */
#endif

/* Define following even if IPv6 not supported, so we can always allocate
   an adequately sized buffer without #ifdefs in the code. */
#ifndef INET6_ADDRSTRLEN
/* $$.Ic INET6_ADDRSTRLEN$$ */
#define	INET6_ADDRSTRLEN	46	/* max size of IPv6 address string:
				   "xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx" or
				   "xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:ddd.ddd.ddd.ddd\0"
				    1234567890123456789012345678901234567890123456 */
#endif
/* *INDENT-ON* */

/* Define bzero() as a macro if it's not in standard C library. */
#ifndef	HAVE_BZERO
#define	bzero(ptr,n)		memset(ptr, 0, n)
/* $$.If bzero$$ */
/* $$.If memset$$ */
#endif

/* Older resolvers do not have gethostbyname2() */
#ifndef	HAVE_GETHOSTBYNAME2
#define	gethostbyname2(host,family)		gethostbyname((host))
#endif

/* The structure returned by recvfrom_flags() */
struct unp_in_pktinfo {
  struct in_addr	ipi_addr;	/* dst IPv4 address */
  int				ipi_ifindex;/* received interface index */
};
/* $$.It unp_in_pktinfo$$ */
/* $$.Ib ipi_addr$$ */
/* $$.Ib ipi_ifindex$$ */

/* We need the newer CMSG_LEN() and CMSG_SPACE() macros, but few
   implementations support them today.  These two macros really need
    an ALIGN() macro, but each implementation does this differently. */
#ifndef	CMSG_LEN
/* $$.Im CMSG_LEN$$ */
#define	CMSG_LEN(size)		(sizeof(struct cmsghdr) + (size))
#endif
#ifndef	CMSG_SPACE
/* $$.Im CMSG_SPACE$$ */
#define	CMSG_SPACE(size)	(sizeof(struct cmsghdr) + (size))
#endif

/* POSIX requires the SUN_LEN() macro, but not all implementations DefinE
   it (yet).  Note that this 4.4BSD macro works regardless whether there is
   a length field or not. */
#ifndef	SUN_LEN
/* $$.Im SUN_LEN$$ */
# define	SUN_LEN(su) \
	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
#endif

/* POSIX renames "Unix domain" as "local IPC."
   Not all systems DefinE AF_LOCAL and PF_LOCAL (yet). */
#ifndef	AF_LOCAL
#define AF_LOCAL	AF_UNIX
#endif
#ifndef	PF_LOCAL
#define PF_LOCAL	PF_UNIX
#endif

/* POSIX requires that an #include of <poll.h> DefinE INFTIM, but many
   systems still DefinE it in <sys/stropts.h>.  We don't want to include
   all the STREAMS stuff if it's not needed, so we just DefinE INFTIM here.
   This is the standard value, but there's no guarantee it is -1. */
#ifndef INFTIM
#define INFTIM          (-1)    /* infinite poll timeout */
/* $$.Ic INFTIM$$ */
#ifdef	HAVE_POLL_H
#define	INFTIM_UNPH				/* tell unpxti.h we defined it */
#endif
#endif

/* Following could be derived from SOMAXCONN in <sys/socket.h>, but many
   kernels still #define it as 5, while actually supporting many more */
#define	LISTENQ		1024	/* 2nd argument to listen() */

/* Miscellaneous constants */
#define	MAXLINE		4096	/* max text line length */
#define	BUFFSIZE	8192	/* buffer size for reads and writes */

/* Define some port number that can be used for our examples */
#define	SERV_PORT		 9877			/* TCP and UDP */
#define	SERV_PORT_STR	"9877"			/* TCP and UDP */
#define	UNIXSTR_PATH	"/tmp/unix.str"	/* Unix domain stream */
#define	UNIXDG_PATH		"/tmp/unix.dg"	/* Unix domain datagram */
/* $$.ix [LISTENQ]~constant,~definition~of$$ */
/* $$.ix [MAXLINE]~constant,~definition~of$$ */
/* $$.ix [BUFFSIZE]~constant,~definition~of$$ */
/* $$.ix [SERV_PORT]~constant,~definition~of$$ */
/* $$.ix [UNIXSTR_PATH]~constant,~definition~of$$ */
/* $$.ix [UNIXDG_PATH]~constant,~definition~of$$ */

/* Following shortens all the typecasts of pointer arguments: */
#define	SA	struct sockaddr

#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
/*
 * RFC 3493: protocol-independent placeholder for socket addresses
 */
#define	__SS_MAXSIZE	128
#define	__SS_ALIGNSIZE	(sizeof(int64_t))
#ifdef HAVE_SOCKADDR_SA_LEN
#define	__SS_PAD1SIZE	(__SS_ALIGNSIZE - sizeof(u_char) - sizeof(sa_family_t))
#else
#define	__SS_PAD1SIZE	(__SS_ALIGNSIZE - sizeof(sa_family_t))
#endif
#define	__SS_PAD2SIZE	(__SS_MAXSIZE - 2*__SS_ALIGNSIZE)

struct sockaddr_storage {
#ifdef HAVE_SOCKADDR_SA_LEN
	u_char		ss_len;
#endif
	sa_family_t	ss_family;
	char		__ss_pad1[__SS_PAD1SIZE];
	int64_t		__ss_align;
	char		__ss_pad2[__SS_PAD2SIZE];
};
#endif

#define	FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
					/* default file access permissions for new files */
#define	DIR_MODE	(FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
					/* default permissions for new directories */

typedef	void	Sigfunc(int);	/* for signal handlers */

#define	min(a,b)	((a) < (b) ? (a) : (b))
#define	max(a,b)	((a) > (b) ? (a) : (b))

#ifndef	HAVE_ADDRINFO_STRUCT
# include	"../lib/addrinfo.h"
#endif

#ifndef	HAVE_IF_NAMEINDEX_STRUCT
struct if_nameindex {
  unsigned int   if_index;  /* 1, 2, ... */
  char          *if_name;   /* null-terminated name: "le0", ... */
};
/* $$.It if_nameindex$$ */
/* $$.Ib if_index$$ */
/* $$.Ib if_name$$ */
#endif

#ifndef	HAVE_TIMESPEC_STRUCT
struct timespec {
  time_t	tv_sec;		/* seconds */
  long		tv_nsec;	/* and nanoseconds */
};
/* $$.It timespec$$ */
/* $$.Ib tv_sec$$ */
/* $$.Ib tv_nsec$$ */
#endif
/* end unph */

			/* prototypes for our own library functions */
int		 connect_nonb(int, const SA *, socklen_t, int);
int		 connect_timeo(int, const SA *, socklen_t, int);
int	 daemon_init(const char *, int);
void	 daemon_inetd(const char *, int);
void	 dg_cli(FILE *, int, const SA *, socklen_t);
void	 dg_echo(int, SA *, socklen_t);
int		 family_to_level(int);
char	*gf_time(void);
void	 heartbeat_cli(int, int, int);
void	 heartbeat_serv(int, int, int);
struct addrinfo *host_serv(const char *, const char *, int, int);
int		 inet_srcrt_add(char *);
u_char  *inet_srcrt_init(int);
void	 inet_srcrt_print(u_char *, int);
void	 inet6_srcrt_print(void *);
char   **my_addrs(int *);
int		 readable_timeo(int, int);
ssize_t	 readline(int, void *, size_t);
ssize_t	 readn(int, void *, size_t);
ssize_t	 read_fd(int, void *, size_t, int *);
ssize_t	 recvfrom_flags(int, void *, size_t, int *, SA *, socklen_t *,
		 struct unp_in_pktinfo *);
Sigfunc *signal_intr(int, Sigfunc *);
int		 sock_bind_wild(int, int);
int		 sock_cmp_addr(const SA *, const SA *, socklen_t);
int		 sock_cmp_port(const SA *, const SA *, socklen_t);
int		 sock_get_port(const SA *, socklen_t);
void	 sock_set_addr(SA *, socklen_t, const void *);
void	 sock_set_port(SA *, socklen_t, int);
void	 sock_set_wild(SA *, socklen_t);
char	*sock_ntop(const SA *, socklen_t);
char	*sock_ntop_host(const SA *, socklen_t);
int		 sockfd_to_family(int);
void	 str_echo(int);
void	 str_cli(FILE *, int);
int		 tcp_connect(const char *, const char *);
int		 tcp_listen(const char *, const char *, socklen_t *);
void	 tv_sub(struct timeval *, struct timeval *);
int		 udp_client(const char *, const char *, SA **, socklen_t *);
int		 udp_connect(const char *, const char *);
int		 udp_server(const char *, const char *, socklen_t *);
int		 writable_timeo(int, int);
ssize_t	 writen(int, const void *, size_t);
ssize_t	 write_fd(int, void *, size_t, int);

#ifdef	MCAST
int		 mcast_leave(int, const SA *, socklen_t);
int		 mcast_join(int, const SA *, socklen_t, const char *, u_int);
int		 mcast_leave_source_group(int sockfd, const SA *src, socklen_t srclen,
								  const SA *grp, socklen_t grplen);
int		 mcast_join_source_group(int sockfd, const SA *src, socklen_t srclen,
								 const SA *grp, socklen_t grplen,
								 const char *ifname, u_int ifindex);
int		 mcast_block_source(int sockfd, const SA *src, socklen_t srclen,
							const SA *grp, socklen_t grplen);
int		 mcast_unblock_source(int sockfd, const SA *src, socklen_t srclen,
							  const SA *grp, socklen_t grplen);
int		 mcast_get_if(int);
int		 mcast_get_loop(int);
int		 mcast_get_ttl(int);
int		 mcast_set_if(int, const char *, u_int);
int		 mcast_set_loop(int, int);
int		 mcast_set_ttl(int, int);

void	 Mcast_leave(int, const SA *, socklen_t);
void	 Mcast_join(int, const SA *, socklen_t, const char *, u_int);
void	 Mcast_leave_source_group(int sockfd, const SA *src, socklen_t srclen,
								  const SA *grp, socklen_t grplen);
void	 Mcast_join_source_group(int sockfd, const SA *src, socklen_t srclen,
								 const SA *grp, socklen_t grplen,
								 const char *ifname, u_int ifindex);
void	 Mcast_block_source(int sockfd, const SA *src, socklen_t srclen,
							const SA *grp, socklen_t grplen);
void	 Mcast_unblock_source(int sockfd, const SA *src, socklen_t srclen,
							  const SA *grp, socklen_t grplen);
int		 Mcast_get_if(int);
int		 Mcast_get_loop(int);
int		 Mcast_get_ttl(int);
void	 Mcast_set_if(int, const char *, u_int);
void	 Mcast_set_loop(int, int);
void	 Mcast_set_ttl(int, int);
#endif

uint16_t	in_cksum(uint16_t *, int);

#ifndef	HAVE_GETADDRINFO_PROTO
int		 getaddrinfo(const char *, const char *, const struct addrinfo *,
					 struct addrinfo **);
void	 freeaddrinfo(struct addrinfo *);
char	*gai_strerror(int);
#endif

#ifndef	HAVE_GETNAMEINFO_PROTO
int		 getnameinfo(const SA *, socklen_t, char *, size_t, char *, size_t, int);
#endif

#ifndef	HAVE_GETHOSTNAME_PROTO
int		 gethostname(char *, int);
#endif

#ifndef	HAVE_HSTRERROR_PROTO
const char	*hstrerror(int);
#endif

#ifndef	HAVE_IF_NAMETOINDEX_PROTO
unsigned int	 if_nametoindex(const char *);
char			*if_indextoname(unsigned int, char *);
void			 if_freenameindex(struct if_nameindex *);
struct if_nameindex *if_nameindex(void);
#endif

#ifndef	HAVE_INET_PTON_PROTO
int			 inet_pton(int, const char *, void *);
const char	*inet_ntop(int, const void *, char *, size_t);
#endif

#ifndef	HAVE_INET_ATON_PROTO
int		 inet_aton(const char *, struct in_addr *);
#endif

#ifndef	HAVE_PSELECT_PROTO
int		 pselect(int, fd_set *, fd_set *, fd_set *,
				 const struct timespec *, const sigset_t *);
#endif

#ifndef	HAVE_SOCKATMARK_PROTO
int		 sockatmark(int);
#endif

#ifndef	HAVE_SNPRINTF_PROTO
int		 snprintf(char *, size_t, const char *, ...);
#endif

			/* prototypes for our own library wrapper functions */
void	 Connect_timeo(int, const SA *, socklen_t, int);
int		 Family_to_level(int);
struct addrinfo *Host_serv(const char *, const char *, int, int);
const char		*Inet_ntop(int, const void *, char *, size_t);
void			 Inet_pton(int, const char *, void *);
char			*If_indextoname(unsigned int, char *);
unsigned int		 If_nametoindex(const char *);
struct if_nameindex	*If_nameindex(void);
char   **My_addrs(int *);
ssize_t	 Read_fd(int, void *, size_t, int *);
int		 Readable_timeo(int, int);
ssize_t	 Recvfrom_flags(int, void *, size_t, int *, SA *, socklen_t *,
		 struct unp_in_pktinfo *);
Sigfunc *Signal(int, Sigfunc *);
Sigfunc *Signal_intr(int, Sigfunc *);
int		 Sock_bind_wild(int, int);
char	*Sock_ntop(const SA *, socklen_t);
char	*Sock_ntop_host(const SA *, socklen_t);
int		 Sockfd_to_family(int);
int		 Tcp_connect(const char *, const char *);
int		 Tcp_listen(const char *, const char *, socklen_t *);
int		 Udp_client(const char *, const char *, SA **, socklen_t *);
int		 Udp_connect(const char *, const char *);
int		 Udp_server(const char *, const char *, socklen_t *);
ssize_t	 Write_fd(int, void *, size_t, int);
int		 Writable_timeo(int, int);

			/* prototypes for our Unix wrapper functions: see {Sec errors} */
void	*Calloc(size_t, size_t);
void	 Close(int);
void	 Dup2(int, int);
int		 Fcntl(int, int, int);
void	 Gettimeofday(struct timeval *, void *);
int		 Ioctl(int, int, void *);
pid_t	 Fork(void);
void	*Malloc(size_t);
int	 Mkstemp(char *);
void	*Mmap(void *, size_t, int, int, int, off_t);
int		 Open(const char *, int, mode_t);
void	 Pipe(int *fds);
ssize_t	 Read(int, void *, size_t);
void	 Sigaddset(sigset_t *, int);
void	 Sigdelset(sigset_t *, int);
void	 Sigemptyset(sigset_t *);
void	 Sigfillset(sigset_t *);
int		 Sigismember(const sigset_t *, int);
void	 Sigpending(sigset_t *);
void	 Sigprocmask(int, const sigset_t *, sigset_t *);
char	*Strdup(const char *);
long	 Sysconf(int);
void	 Sysctl(int *, u_int, void *, size_t *, void *, size_t);
void	 Unlink(const char *);
pid_t	 Wait(int *);
pid_t	 Waitpid(pid_t, int *, int);
void	 Write(int, void *, size_t);

			/* prototypes for our stdio wrapper functions: see {Sec errors} */
void	 Fclose(FILE *);
FILE	*Fdopen(int, const char *);
char	*Fgets(char *, int, FILE *);
FILE	*Fopen(const char *, const char *);
void	 Fputs(const char *, FILE *);

			/* prototypes for our socket wrapper functions: see {Sec errors} */
int		 Accept(int, SA *, socklen_t *);
void	 Bind(int, const SA *, socklen_t);
void	 Connect(int, const SA *, socklen_t);
void	 Getpeername(int, SA *, socklen_t *);
void	 Getsockname(int, SA *, socklen_t *);
void	 Getsockopt(int, int, int, void *, socklen_t *);
#ifdef	HAVE_INET6_RTH_INIT
int		 Inet6_rth_space(int, int);
void	*Inet6_rth_init(void *, socklen_t, int, int);
void	 Inet6_rth_add(void *, const struct in6_addr *);
void	 Inet6_rth_reverse(const void *, void *);
int		 Inet6_rth_segments(const void *);
struct in6_addr *Inet6_rth_getaddr(const void *, int);
#endif
#ifdef	HAVE_KQUEUE
int		 Kqueue(void);
int		 Kevent(int, const struct kevent *, int,
				struct kevent *, int, const struct timespec *);
#endif
void	 Listen(int, int);
#ifdef	HAVE_POLL
int		 Poll(struct pollfd *, unsigned long, int);
#endif
ssize_t	 Readline(int, void *, size_t);
ssize_t	 Readn(int, void *, size_t);
ssize_t	 Recv(int, void *, size_t, int);
ssize_t	 Recvfrom(int, void *, size_t, int, SA *, socklen_t *);
ssize_t	 Recvmsg(int, struct msghdr *, int);
int		 Select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
void	 Send(int, const void *, size_t, int);
void	 Sendto(int, const void *, size_t, int, const SA *, socklen_t);
void	 Sendmsg(int, const struct msghdr *, int);
void	 Setsockopt(int, int, int, const void *, socklen_t);
void	 Shutdown(int, int);
int		 Sockatmark(int);
int		 Socket(int, int, int);
void	 Socketpair(int, int, int, int *);
void	 Writen(int, void *, size_t);

void	 err_dump(const char *, ...);
void	 err_msg(const char *, ...);
void	 err_quit(const char *, ...);
void	 err_ret(const char *, ...);
void	 err_sys(const char *, ...);

#include "error.c"

#endif	/* __unp_h */

于是我把第三版的源代码编译实现了这个过程，算是一种个性化的开发环境的搭建吧，顺便把过程记录下来，以便自己以后查阅。

首先去网上找到源代码包unpv.13e.tar.gz 一找一大堆

解压缩到你的某个目录，unpv13e里面大致有这些目录

├── aclocal.m4
├── advio
├── bcast
├── config.guess
├── config.h
├── config.h.in
├── config.log
├── config.status
├── config.sub
├── configure
├── configure.in
├── debug
├── DISCLAIMER
├── icmpd
├── inetd
├── install-sh
├── intro
├── ioctl
├── ipopts
├── key
├── lib
├── libfree
├── libgai
├── libroute
├── libunp.a（就是为了生成这个文件）
├── Make.defines
├── Make.defines.in
├── Makefile
├── Makefile.in
├── mcast
├── mysdr
├── names
├── nonblock
├── oob
├── ping
├── README
├── route
├── rtt
├── sctp
├── select
├── server
├── sigio
├── sock
├── sockopt
├── sparc64-unknown-freebsd5.1
├── ssntp
├── streams
├── tcpcliserv
├── test
├── threads
├── traceroute
├── udpcksum
├── udpcliserv
├── unixdomain
├── unpv13e
└── VERSION