关于《UNIX环境高级编程（第三版）》中apue.h头文件的设置

转载出处：http://www.linuxidc.com/Linux/2012-01/51729.htm

apue.h头文件（UNIX环境高级编程）

        apue.h是作者自己写的一个文件，包含了常用的头文件，系统不自带。其中包含了常用的头文件，以及出错处理函数的定义。使用起来确实很方便。

        apue.h内容如下：

/* Our own header, to be included before all standard system headers */
 
#ifndef _APUE_H
#define _APUE_H
 
#if defined(SOLARIS)
#define _XOPEN_SOURCE   500 /* Single UNIX Specification, Version 2  for Solaris 9 */
#define CMSG_LEN(x) _CMSG_DATA_ALIGN(sizeof(struct cmsghdr)+(x))
#elif !defined(BSD)
#define _XOPEN_SOURCE   600 /* Single UNIX Specification, Version 3 */
#endif
 
#include <sys/types.h>        /* some systems still require this */
#include <sys/stat.h>
#include <sys/termios.h>  /* for winsize */
#ifndef TIOCGWINSZ
#include <sys/ioctl.h>
#endif
#include <stdio.h>        /* for convenience */
#include <stdlib.h>       /* for convenience */
#include <stddef.h>       /* for offsetof */
#include <string.h>       /* for convenience */
#include <unistd.h>       /* for convenience */
#include <signal.h>       /* for SIG_ERR */
 
#define MAXLINE 4096            /* max line length */
 
/*
 * Default file access permissions for new files.
 */
#define FILE_MODE   (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
 
/*
 * Default permissions for new directories.
 */
#define DIR_MODE    (FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
 
typedef void    Sigfunc(int);   /* for signal handlers */
 
#if defined(SIG_IGN) && !defined(SIG_ERR)
#define SIG_ERR ((Sigfunc *)-1)
#endif
 
#define min(a,b)    ((a) < (b) ? (a) : (b))
#define max(a,b)    ((a) > (b) ? (a) : (b))
 
/*
 * Prototypes for our own functions.
 */
char    *path_alloc(int *);             /* {Prog pathalloc} */
long     open_max(void);                /* {Prog openmax} */
void     clr_fl(int, int);              /* {Prog setfl} */
void     set_fl(int, int);              /* {Prog setfl} */
void     pr_exit(int);                  /* {Prog prexit} */
void     pr_mask(const char *);         /* {Prog prmask} */
Sigfunc *signal_intr(int, Sigfunc *);   /* {Prog signal_intr_function} */
 
int      tty_cbreak(int);               /* {Prog raw} */
int      tty_raw(int);                  /* {Prog raw} */
int      tty_reset(int);                /* {Prog raw} */
void     tty_atexit(void);              /* {Prog raw} */
#ifdef  ECHO    /* only if <termios.h> has been included */
struct termios  *tty_termios(void);     /* {Prog raw} */
#endif
 
void     sleep_us(unsigned int);            /* {Ex sleepus} */
ssize_t  readn(int, void *, size_t);        /* {Prog readn_writen} */
ssize_t  writen(int, const void *, size_t); /* {Prog readn_writen} */
void     daemonize(const char *);           /* {Prog daemoninit} */
 
int      s_pipe(int *);                 /* {Progs streams_spipe sock_spipe} */
int      recv_fd(int, ssize_t (*func)(int,
                 const void *, size_t));/* {Progs recvfd_streams recvfd_sockets} */
int      send_fd(int, int);             /* {Progs sendfd_streams sendfd_sockets} */
int      send_err(int, int,
                  const char *);        /* {Prog senderr} */
int      serv_listen(const char *);     /* {Progs servlisten_streams servlisten_sockets} */
int      serv_accept(int, uid_t *);     /* {Progs servaccept_streams servaccept_sockets} */
int      cli_conn(const char *);        /* {Progs cliconn_streams cliconn_sockets} */
int      buf_args(char *, int (*func)(int,
                  char **));            /* {Prog bufargs} */
 
int      ptym_open(char *, int);    /* {Progs3 ptyopen_streams ptyopen_bsd ptyopen_linux} */
int      ptys_open(char *);         /* {Progs3 ptyopen_streams ptyopen_bsd ptyopen_linux} */
#ifdef  TIOCGWINSZ
pid_t    pty_fork(int *, char *, int, const struct termios *,
                  const struct winsize *);      /* {Prog ptyfork} */
#endif
 
int     lock_reg(int, int, int, off_t, int, off_t); /* {Prog lockreg} */
#define read_lock(fd, offset, whence, len) \
            lock_reg((fd), F_SETLK, F_RDLCK, (offset), (whence), (len))
#define readw_lock(fd, offset, whence, len) \
            lock_reg((fd), F_SETLKW, F_RDLCK, (offset), (whence), (len))
#define write_lock(fd, offset, whence, len) \
            lock_reg((fd), F_SETLK, F_WRLCK, (offset), (whence), (len))
#define writew_lock(fd, offset, whence, len) \
            lock_reg((fd), F_SETLKW, F_WRLCK, (offset), (whence), (len))
#define un_lock(fd, offset, whence, len) \
            lock_reg((fd), F_SETLK, F_UNLCK, (offset), (whence), (len))
 
pid_t   lock_test(int, int, off_t, int, off_t);     /* {Prog locktest} */
 
#define is_read_lockable(fd, offset, whence, len) \
            (lock_test((fd), F_RDLCK, (offset), (whence), (len)) == 0)
#define is_write_lockable(fd, offset, whence, len) \
            (lock_test((fd), F_WRLCK, (offset), (whence), (len)) == 0)
 
void    err_dump(const char *, ...);        /* {App misc_source} */
void    err_msg(const char *, ...);
void    err_quit(const char *, ...);
void    err_exit(int, const char *, ...);
void    err_ret(const char *, ...);
void    err_sys(const char *, ...);
 
void    log_msg(const char *, ...);         /* {App misc_source} */
void    log_open(const char *, int, int);
void    log_quit(const char *, ...);
void    log_ret(const char *, ...);
void    log_sys(const char *, ...);
 
void    TELL_WAIT(void);        /* parent/child from {Sec race_conditions} */
void    TELL_PARENT(pid_t);
void    TELL_CHILD(pid_t);
void    WAIT_PARENT(void);
void    WAIT_CHILD(void);
 
//add redstar {
#include "error.c"
//}end add
 
#endif  /* _APUE_H */
           

error.c文件:

#include "apue.h"
#include <errno.h>		/* for definition of errno */
#include <stdarg.h>		/* ISO C variable aruments */

static void	err_doit(int, int, const char *, va_list);

/*
 * Nonfatal error related to a system call.
 * Print a message and return.
 */
void
err_ret(const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(1, errno, fmt, ap);
	va_end(ap);
}

/*
 * Fatal error related to a system call.
 * Print a message and terminate.
 */
void
err_sys(const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(1, errno, fmt, ap);
	va_end(ap);
	exit(1);
}

/*
 * Nonfatal error unrelated to a system call.
 * Error code passed as explict parameter.
 * Print a message and return.
 */
void
err_cont(int error, const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(1, error, fmt, ap);
	va_end(ap);
}

/*
 * Fatal error unrelated to a system call.
 * Error code passed as explict parameter.
 * Print a message and terminate.
 */
void
err_exit(int error, const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(1, error, fmt, ap);
	va_end(ap);
	exit(1);
}

/*
 * Fatal error related to a system call.
 * Print a message, dump core, and terminate.
 */
void
err_dump(const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(1, errno, fmt, ap);
	va_end(ap);
	abort();		/* dump core and terminate */
	exit(1);		/* shouldn't get here */
}

/*
 * Nonfatal error unrelated to a system call.
 * Print a message and return.
 */
void
err_msg(const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(0, 0, fmt, ap);
	va_end(ap);
}

/*
 * Fatal error unrelated to a system call.
 * Print a message and terminate.
 */
void
err_quit(const char *fmt, ...)
{
	va_list		ap;

	va_start(ap, fmt);
	err_doit(0, 0, fmt, ap);
	va_end(ap);
	exit(1);
}

/*
 * Print a message and return to caller.
 * Caller specifies "errnoflag".
 */
static void
err_doit(int errnoflag, int error, const char *fmt, va_list ap)
{
	char	buf[MAXLINE];

	vsnprintf(buf, MAXLINE-1, fmt, ap);
	if (errnoflag)
		snprintf(buf+strlen(buf), MAXLINE-strlen(buf)-1, ": %s",
		  strerror(error));
	strcat(buf, "\n");
	fflush(stdout);		/* in case stdout and stderr are the same */
	fputs(buf, stderr);
	fflush(NULL);		/* flushes all stdio output streams */
}
           

想要使用，还要进行下面操作，完成相关配置.

  在http://www.apuebook.com/下载src.tar.gz源代码的压缩包。

   1、解压至/home/user/目录下

   2、修改 Make.defines.linux中的WKDIR=/home/xxx/apue.2e，为WKDIR=/home/user/apue.2e

   3、返回至apue.2e目录下面，修改linux.mk，将里面的nawk全部改为awk，可以使用这个命令 ：%s/nawk/awk/g 

   4、make

   5、将/home/user/apue.2e/include/apue.h和/home/user/apue.2e/lib/error.c复制到/usr/include目录下

    然后就可以方便的使用apue.h编译《unix高级环境编程》的的程序了