spac

System Dependancies

The following (operating) system dependancies are available:

• Availability of a system library: To link against a system library, named X that may be present only on some systems, include X.lib in the executable list file. The following uses are known:
  • crypt.lib Use this if you use the crypt function call, which is found in -lcrypt on some systems.
  • s.lib Use this if you use ???
  • shadow.lib Use this if you are using shadow password functions.
• Availability of linking against -lsocket -lnsl: This is a special case of the above rule, and tests for linking against both libraries simultaneously. Add socket.lib to the executable list file if you use sockets.
• struct direct vs struct dirent: Include "direntry.h" to your C source, and use the struct named direntry in place of the above two structs.
• fork and vfork: If you use vfork, add the include file fork.h to your C source.
• hasdevtcp.h: Unknown.
• flock: Include "hasflock.h" which will define HASFLOCK if the flock system call is available.
• sigaction system call: Include "hassgact.h" which will define HASSIGACTION if the sigaction system call is available.
• sigprocmask, and sigsuspend: Include "hassgprm.h" which will define HASSIGPROCMASK if the system calls are available.
• setgroups uses an array: Include "hasshsgr.h" which will define HASSHORTSETGROUPS if the setgroups system call needs to be passed an array of short integers instead of just integers.
• Shadow passwords: Include "hasspnam.h" which will define HASGETSPNAM if the shadow password functions (getspnam in particular) are available.
• getuserpw: Include "hasuserpw.h" which will define HASUSERPW if the getuserpw routine is to be used to access authentication information. This function returns a struct userpw, with the relevant encrypted password field named upw_passwd
• waitpid system call: Include "haswaitp.h" which will define HASWAITPID if the waitpid system call is available. If it is not available, you will have to revert to using the older wait system call.
• poll vs select: Include "iopoll.h", and use the type iopoll_fd in place of struct pollfd, and the function iopoll in place of poll. Your executables also need to link in iopoll.o.
• select system call: Include "select.h" which provides the necessary includes and declarations to use the select system call.
• Unsigned 32-bit integers: Include "uint32.h" and use the uint32 data type.
• Unsigned 64-bit integers: Include "uint64.h" and use the uint64 data type.
• <sys/time.h> and <time.h>: Include "systime.h".
• setenv: Include "hassetenv.h", and link setenv.o in your executables.
• SO_PEERCRED and struct ucred: Include "haspeercred.h" which will define HASPEERCRED.