release/src/router/pptpd/compat.h

   1 /*
   2  * compat.h
   3  *
   4  * Compatibility functions for different OSes (prototypes)
   5  *
   6  * $Id: compat.h,v 1.5 2005/01/05 11:01:51 quozl Exp $
   7  */
   8
   9 #ifndef _PPTPD_COMPAT_H
  10 #define _PPTPD_COMPAT_H
  11
  12 #if HAVE_CONFIG_H
  13 #include "config.h"
  14 #endif
  15
  16 #if HAVE_SETSID
  17 #define SETSIDPGRP setsid
  18 #else
  19 #define SETSIDPGRP setpgrp
  20 #endif
  21
  22 #include <sys/types.h>
  23
  24 #ifndef HAVE_STRLCPY
  25 /* void since to be fast and portable, we use strncpy, but this
  26  * means we don't know how many bytes were copied
  27  */
  28 extern void strlcpy(char *dst, const char *src, size_t size);
  29 #endif  /* !HAVE_STRLCPY */
  30
  31 #ifndef HAVE_MEMMOVE
  32 extern void *memmove(void *dst, const void *src, size_t size);
  33 #endif  /* !HAVE_MEMMOVE */
  34
  35 #ifndef HAVE_OPENPTY
  36 /* Originally from code by C. S. Ananian */
  37
  38 /* These are the Linux values - and fairly sane defaults.
  39  * Since we search from the start and just skip errors, they'll do.
  40  * Note that Unix98 has an openpty() call so we don't need to worry
  41  * about the new pty names here.
  42  */
  43 #define PTYDEV          "/dev/ptyxx"
  44 #define TTYDEV          "/dev/ttyxx"
  45 #define PTYMAX          11
  46 #define TTYMAX          11
  47 #define PTYCHAR1        "pqrstuvwxyzabcde"
  48 #define PTYCHAR2        "0123456789abcdef"
  49
  50 /* Dummy the last 2 args, so we don't have to find the right include
  51  * files on every OS to define the needed structures.
  52  */
  53 extern int openpty(int *, int *, char *, void *, void *);
  54 #endif  /* !HAVE_OPENPTY */
  55
  56 #ifndef HAVE_STRERROR
  57 extern char *strerror(int);
  58 #endif
  59
  60 extern void my_setproctitle(int argc, char **argv, const char *format, ...)
  61        __attribute__ ((format (printf, 3, 4)));
  62
  63 /* signal to pipe delivery implementation */
  64
  65 /* create a signal pipe, returns 0 for success, -1 with errno for failure */
  66 int sigpipe_create();
  67
  68 /* generic handler for signals, writes signal number to pipe */
  69 void sigpipe_handler(int signum);
  70
  71 /* assign a signal number to the pipe */
  72 void sigpipe_assign(int signum);
  73
  74 /* return the signal pipe read file descriptor for select(2) */
  75 int sigpipe_fd();
  76
  77 /* read and return the pending signal from the pipe */
  78 int sigpipe_read();
  79
  80 void sigpipe_close();
  81
  82 #endif  /* !_PPTPD_COMPAT_H */