ourhead.h

/*Our own header, to be included after all standard system headers*/ #ifndef __ourhdr_h #define __ourhdr_h #include    <errno.h>/*for definition of errno */ #include    <stdarg.h>/*ANSI C header file*/ #include        <sys/types.h>   /* required for some of our prototypes */ #include        <stdio.h>               /* for convenience */ #include        <stdlib.h>              /* for convenience */ #include        <string.h>              /* for convenience */ #include        <unistd.h>              /* 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 directoris */ typedef void    Sigfunc(int);   /* for signal handlers */                                         /* 4.3BSD Reno <signal.h> 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)) #define max(a,b)        ((a) > (b) ? (a) : (b))                                         /* prototypes for our own functions */ char    *path_alloc(int *);                     /* {Prog pathalloc} */ int              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} */ ssize_t writen(int, const void *, size_t);/* {Prog writen} */ int              daemon_init(void);                     /* {Prog daemoninit} */ int              s_pipe(int *);                         /* {Progs svr4_spipe bsd spipe} */ int              recv_fd(int, ssize_t (*func)(int, const void *, size_t));                                                                         /* {Prog   recvfd_svr4 recvfd_43bsd} */ int              send_fd(int, int);                     /* {Progs sendfd_svr4 se dfd_43bsd} */ int              send_err(int, int, const char *);/* {Prog senderr} */ int              serv_listen(const char *);     /* {Progs servlisten_svr4 servli ten_4 4bsd} */ int              serv_accept(int, uid_t *);     /* {Progs servaccept_svr4 servac ept_4 4bsd} */ int              cli_conn(const char *);        /* {Progs cliconn_svr4 cliconn_4 bsd} */ int              buf_args(char *, int (*func)(int, char **));                                                                         /* {Prog bufargs} */ int              ptym_open(char *);                     /* {Progs ptyopen_svr4 p yopen_44bsd} */ int              ptys_open(int, char *);        /* {Progs ptyopen_svr4 ptyopen_4 bsd} */ #ifdef TIOCGWINSZ pid_t    pty_fork(int *, char *, 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_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 *, ...);    /* {App misc_source} */ 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 *, ...);             /* {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_condition } */ void    TELL_PARENT(pid_t); void    TELL_CHILD(pid_t); void    WAIT_PARENT(void); void    WAIT_CHILD(void); #endif /* __ourhdr_h */