UNIX环境高级编程头文件包含函数的问题

含笑半步跌

其中“　[color="Red"]char*path_alloc(int *);　”这个函数在哪里定义的？

1. /* Our own header, to be included *after* all standard system headers */
   
2. 
   
3. #ifndef__ourhdr_h
   
4. #define__ourhdr_h
   
5. 
   
6. #include<sys/types.h>/* required for some of our prototypes */
   
7. #include<stdio.h>/* for convenience */
   
8. #include<stdlib.h>/* for convenience */
   
9. #include<string.h>/* for convenience */
   
10. #include<unistd.h>/* for convenience */
    
11. 
    
12. #defineMAXLINE4096/* max line length */
    
13. 
    
14. #defineFILE_MODE(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
    
15. /* default file access permissions for new files */
    
16. #defineDIR_MODE(FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
    
17. /* default permissions for new directories */
    
18. 
    
19. typedefvoidSigfunc(int);/* for signal handlers */
    
20. 
    
21. /* 4.3BSD Reno <signal.h> doesn't define SIG_ERR */
    
22. #ifdefined(SIG_IGN) && !defined(SIG_ERR)
    
23. #defineSIG_ERR((Sigfunc *)-1)
    
24. #endif
    
25. 
    
26. #definemin(a,b)((a) < (b) ? (a) : (b))
    
27. #definemax(a,b)((a) > (b) ? (a) : (b))
    
28. 
    
29. /* prototypes for our own functions */
    
30. [color="red"]char*path_alloc(int *);/* {Prog pathalloc} */[/color]
    
31. int open_max(void);/* {Prog openmax} */
    
32. void clr_fl(int, int);/* {Prog setfl} */
    
33. void set_fl(int, int);/* {Prog setfl} */
    
34. void pr_exit(int);/* {Prog prexit} */
    
35. void pr_mask(const char *);/* {Prog prmask} */
    
36. Sigfunc*signal_intr(int, Sigfunc *);/* {Prog signal_intr_function} */
    
37. 
    
38. int tty_cbreak(int);/* {Prog raw} */
    
39. int tty_raw(int);/* {Prog raw} */
    
40. int tty_reset(int);/* {Prog raw} */
    
41. void tty_atexit(void);/* {Prog raw} */
    
42. #ifdefECHO/* only if <termios.h> has been included */
    
43. struct termios*tty_termios(void);/* {Prog raw} */
    
44. #endif
    
45. 
    
46. void sleep_us(unsigned int);/* {Ex sleepus} */
    
47. ssize_t readn(int, void *, size_t);/* {Prog readn} */
    
48. ssize_t writen(int, const void *, size_t);/* {Prog writen} */
    
49. int daemon_init(void);/* {Prog daemoninit} */
    
50. 
    
51. int s_pipe(int *);/* {Progs svr4_spipe bsd_spipe} */
    
52. int recv_fd(int, ssize_t (*func)(int, const void *, size_t));
    
53. /* {Progs recvfd_svr4 recvfd_43bsd} */
    
54. int send_fd(int, int);/* {Progs sendfd_svr4 sendfd_43bsd} */
    
55. int send_err(int, int, const char *);/* {Prog senderr} */
    
56. int serv_listen(const char *);/* {Progs servlisten_svr4 servlisten_44bsd} */
    
57. int serv_accept(int, uid_t *);/* {Progs servaccept_svr4 servaccept_44bsd} */
    
58. int cli_conn(const char *);/* {Progs cliconn_svr4 cliconn_44bsd} */
    
59. int buf_args(char *, int (*func)(int, char **));
    
60. /* {Prog bufargs} */
    
61. 
    
62. int ptym_open(char *);/* {Progs ptyopen_svr4 ptyopen_44bsd} */
    
63. int ptys_open(int, char *);/* {Progs ptyopen_svr4 ptyopen_44bsd} */
    
64. #ifdefTIOCGWINSZ
    
65. pid_t pty_fork(int *, char *, const struct termios *,
    
66.   const struct winsize *);/* {Prog ptyfork} */
    
67. #endif
    
68. 
    
69. intlock_reg(int, int, int, off_t, int, off_t);
    
70. /* {Prog lockreg} */
    
71. #defineread_lock(fd, offset, whence, len) \
    
72. lock_reg(fd, F_SETLK, F_RDLCK, offset, whence, len)
    
73. #definereadw_lock(fd, offset, whence, len) \
    
74. lock_reg(fd, F_SETLKW, F_RDLCK, offset, whence, len)
    
75. #definewrite_lock(fd, offset, whence, len) \
    
76. lock_reg(fd, F_SETLK, F_WRLCK, offset, whence, len)
    
77. #definewritew_lock(fd, offset, whence, len) \
    
78. lock_reg(fd, F_SETLKW, F_WRLCK, offset, whence, len)
    
79. #defineun_lock(fd, offset, whence, len) \
    
80. lock_reg(fd, F_SETLK, F_UNLCK, offset, whence, len)
    
81. 
    
82. pid_tlock_test(int, int, off_t, int, off_t);
    
83. /* {Prog locktest} */
    
84. 
    
85. #defineis_readlock(fd, offset, whence, len) \
    
86. lock_test(fd, F_RDLCK, offset, whence, len)
    
87. #defineis_writelock(fd, offset, whence, len) \
    
88. lock_test(fd, F_WRLCK, offset, whence, len)
    
89. 
    
90. voiderr_dump(const char *, ...);/* {App misc_source} */
    
91. voiderr_msg(const char *, ...);
    
92. voiderr_quit(const char *, ...);
    
93. voiderr_ret(const char *, ...);
    
94. voiderr_sys(const char *, ...);
    
95. 
    
96. voidlog_msg(const char *, ...);/* {App misc_source} */
    
97. voidlog_open(const char *, int, int);
    
98. voidlog_quit(const char *, ...);
    
99. voidlog_ret(const char *, ...);
    
100. voidlog_sys(const char *, ...);
     
101. 
     
102. voidTELL_WAIT(void);/* parent/child from {Sec race_conditions} */
     
103. voidTELL_PARENT(pid_t);
     
104. voidTELL_CHILD(pid_t);
     
105. voidWAIT_PARENT(void);
     
106. voidWAIT_CHILD(void);
     
107. 
     
108. #endif/* __ourhdr_h */

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windwiny

不知道,,我都是用所有头文件 做了一个 csstd.out

在vim 里 :cs a csstd.out 后, Ctrl-\,s 搜索来的,,

或是直接 grep ,就是麻烦一些