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标题: Linux下"UNIX环境高级编程"源码编译出错的处理方法汇总 [打印本页]

作者: coolv 时间: 2009-04-13 15:11
标题: Linux下"UNIX环境高级编程"源码编译出错的处理方法汇总

   这几天在看UNIX环境高级编程这本书，把里面的源代码编译了一下，出现了许多错误，网上也有不少方法可以解决，下面是我个人的解决方法。把以下的两个文件拷贝到系统的头文件位置（/usr/include）。
一个是"ourhdr.h",别外的一个是"myerr.h"
这两个文件的具体是内容是下面：
“ourhdr.h":

/* Our own header, to be included *after* all standard system headers */

#ifndef __ourhdr_h
#define __ourhdr_h

#include  /* required for some of our prototypes */
#include    /* for convenience */
#include    /* for convenience */
#include    /* for convenience */
#include    /* for convenience */

#define MAXLINE 4096  /* max line length */

#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 */
/* 4.3BSD Reno  doesn't define SIG_ERR */

#if defined(SIG_IGN) && !defined(SIG_ERR)
#define SIG_ERR ((Sigfunc *) -1)
#endif

#define min(a,b) ((a)  (b) ? (a) : (b))

/* prototypes for our own functions */
char *path_alloc(int *); /* Program 2.2 */
int open_max(void);       /* Program 2.3 */
void clr_fl(int, int);    /* Program 3.5 */
void set_fl(int, int);    /* Program 3.5 */
void pr_exit(int);       /* Program 8.3 */
void pr_mask(const char *); /* Program 10.10 */
Sigfunc *signal_intr(int, Sigfunc *); /* Program 10.13 */

int tty_cbreak(int);       /* Program 11.10 */
int tty_raw(int);          /* Program 11.10 */
int tty_reset(int);       /* Program 11.10 */
int tty_atexit(int);       /* program 11.10 */
#ifdef ECHO                   /* only if  has been included */
struct termios *tty_termios(void); /* Program 11.10 */
#endif

void sleep_us(unsigned int); /* Exercise 12.6 */
ssize_t readn(int, void *, size_t); /* Program 12.13 */
ssize_t writen(int, const void *, size_t); /* Program 12.12 */
int daemon_init(void);       /* Programs 13.1 */
int s_pipe(int *);             /* Programs 15.2  and 15.3 */
int recv_fd(int, ssize_t (*func) (int, const void *, size_t));
/* Program 15.6 and 15.8 */
int send_fd(int, int);       /* Programs 15.5 and 15.7 */
int send_err(int, int, const char *); /* Programs 15.20 */
int serv_listen(const char *); /* Programs 15.19 and 15.22 */
int serv_accept(int, uid_t *);  /* Programs 15.20 and 15.24 */
int cli_conn(const char *);    /* Programs 15.21 and 15.23 */
int buf_args(char *, int (*func)(int,char **)); /* Program 15.17 */

int ptym_open(char *);       /* Programs 19.1 and 19.2 */
int ptys_open(int, char *);    /* Programs 19.1 ans 19.2 */
#ifdef TIOCGWINSZ
pid_z pty_fork(int *, char *, const struct termios *, const struct winsize *);
/* Program 19.3 */
#endif

int lock_fork(int, int, int, off_t, int, off_t); /* Programs 12.2 */
#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); /* Program 12.3 */

#define is_readlock(fd, offset, whence, len) \
lock_test(fd, F_RDLCK, offset, whence, len)
#define is_writelock(fd, offset, whence, len) \
lock_test(fd, F_WRLCK, offset, whence, len)

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

void log_msg(const char *, ...); /* Appendix B */
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 form Section 8.8 */
void TELL_PARENT(pid_t);
void TELL_CHILD(pid_t);
void WAIT_PARENT(void);
void WAIT_CHILD(void);

#endif /* __ourhdr_h */
“myerr.h"
#include             /* for definition of errno */
#include             /* ANSI C header file */
#include "ourhdr.h"

static void err_doit(int, const char *, va_list);
char *pname = NULL;          /* caller can set this from argv[0] */

/* 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, fmt, ap);
  va_end(ap);
  return;
}

/* 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, fmt, ap);
  va_end(ap);
  exit(1);
}

/* Fatal error related to a system call.
Print a message and terminate. */

void
err_dump(const char *fmt, ...)
{
  va_list ap;

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

/* 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, fmt, ap);
  va_end(ap);
  exit(1);
}

/* Print a message and return to caller.
Caller specifies "errnoflag". */

static void
err_doit(int errnoflag, const char *fmt, va_list ap)
{
  int errno_save;
  char buf[MAXLINE];

  errno_save = errno;          /* value caller might want printed */
  vsprintf(buf, fmt, ap);
  if (errnoflag)
sprintf (buf+strlen(buf), ": %s", strerror (errno_save));
  strcat (buf, "\n");
  fflush(stdout);             /* in case stdout and stderr are the same */
  fputs(buf, stderr);
  fflush(NULL);                /* flushes all stdio output streams */
  return;
}

当然里面很多错误处理是作者自己写的，我们也可以自己改写！
在源文件加上#include "ourhdr.h"就可以啦！
当需要使用这几种错误处理函数的程序源代码里加入#include 就可以了！

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