src/OS/os.h-cygwin

   1 /* Exim: OS-specific C header file for Cygwin */
   2
   3 /* This code was supplied by Pierre A. Humblet <Pierre.Humblet@ieee.org> */
   4
   5 /* Define the OS_INIT macro that we insert in exim.c:main()
   6    to set the root and exim uid depending on the system */
   7 /* We use a special routine to initialize */
   8 void cygwin_init(int, char **, void *, void *, void *, void *, void *);
   9 #define OS_INIT\
  10   cygwin_init(argc, (char **) argv, &root_uid, &exim_uid, &exim_gid, &config_uid, &config_gid);
  11
  12 /* We need a special mkdir that
  13    allows names starting with // */
  14 #include <sys/stat.h> /* Do not redefine mkdir in sys/stat.h */
  15 int cygwin_mkdir( const char *_path, mode_t __mode );
  16 #define mkdir cygwin_mkdir /* redefine mkdir elsewhere */
  17
  18 /* Redefine the set*id calls to run when faking root */
  19 #include <unistd.h>   /* Do not redefine in unitsd.h */
  20 int cygwin_setuid(uid_t uid );
  21 int cygwin_setgid(gid_t gid );
  22 #define setuid cygwin_setuid
  23 #define setgid cygwin_setgid
  24
  25 extern unsigned int cygwin_WinVersion;
  26
  27 #define BASE_62 36  /* Windows aliases lower and upper cases in filenames.
  28                        Consider reducing MAX_LOCALHOST_NUMBER */
  29 #define CRYPT_H
  30 #define HAVE_MMAP
  31 #define HAVE_SYS_VFS_H
  32 #define NO_IP_VAR_H
  33 #define NO_IP_OPTIONS
  34 #define F_FREESP     O_TRUNC
  35 /* Defining LOAD_AVG_NEEDS_ROOT causes an initial
  36    call to os_getloadavg. In our case this is beneficial
  37    because it initializes the counts */
  38 #define LOAD_AVG_NEEDS_ROOT
  39
  40 typedef struct flock flock_t;
  41
  42 /* Macro to define variable length SID structures */
  43 #define SID(n, name, sid...) \
  44 struct  { \
  45   BYTE  Revision; \
  46   BYTE  SubAuthorityCount; \
  47   SID_IDENTIFIER_AUTHORITY IdentifierAuthority; \
  48   DWORD SubAuthority[n]; \
  49 } name = { SID_REVISION, n, {SECURITY_NT_AUTHORITY}, {sid}}
  50
  51 /* End */