src/src/osfunctions.h

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2016 */
   6 /* Copyright (c) The Exim Maintainers 2020 */
   7 /* See the file NOTICE for conditions of use and distribution. */
   8
   9 /* Prototypes for os-specific functions. For utilities, we don't need the one
  10 that uses a type that isn't defined for them. */
  11
  12 #ifndef COMPILE_UTILITY
  13 extern ip_address_item *os_common_find_running_interfaces(void);
  14 #endif
  15
  16 /* If these exist as a macro, then they're overridden away from us and we
  17 rely upon the system headers to provide prototype declarations for us.
  18 Notably, strsignal() is not in the Single Unix Specification (v3) and
  19 predicting constness is awkward. */
  20
  21 #ifndef os_getloadavg
  22 extern int           os_getloadavg(void);
  23 #endif
  24 #ifndef os_restarting_signal
  25 extern void          os_restarting_signal(int, void (*)(int));
  26 #endif
  27 #ifndef os_non_restarting_signal
  28 extern void          os_non_restarting_signal(int, void (*)(int));
  29 #endif
  30 #ifndef os_strexit
  31 extern const char   *os_strexit(int);     /* char to match os_strsignal */
  32 #endif
  33 #ifndef os_strsignal
  34 extern const char   *os_strsignal(int);   /* char to match strsignal in some OS */
  35 #endif
  36 #ifndef os_unsetenv
  37 extern int           os_unsetenv(const uschar *);
  38 #endif
  39 #ifndef os_getcwd
  40 extern uschar       *os_getcwd(uschar *, size_t);
  41 #endif
  42
  43 /* End of osfunctions.h */