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    Process::Sys

    The Process::Sys module contains and functions which provide direct bindings to the system calls of the same names instead of the more-portable versions of the same functionality found in the Process, Process::UID, and Process::GID modules.

    Public Class Methods

    egid → integer click to toggle source
    Process::GID.eid → integer
    Process::Sys.geteid → integer

    Returns the effective group ID for this process. Not available on all platforms. 

    Process.egid #=> 500

     static VALUE
proc_getegid(VALUE obj)
{
 rb_gid_t egid = getegid();
 return GIDT2NUM(egid);
}
    euid → integer click to toggle source
    Process::UID.eid → integer
    Process::Sys.geteuid → integer

    Returns the effective user ID for this process. 

    Process.euid #=> 501

     static VALUE
proc_geteuid(VALUE obj)
{
 rb_uid_t euid = geteuid();
 return UIDT2NUM(euid);
}
    gid → integer click to toggle source
    Process::GID.rid → integer
    Process::Sys.getgid → integer

    Returns the (real) group ID for this process. 

    Process.gid #=> 500

     static VALUE
proc_getgid(VALUE obj)
{
 rb_gid_t gid = getgid();
 return GIDT2NUM(gid);
}
    uid → integer click to toggle source
    Process::UID.rid → integer
    Process::Sys.getuid → integer

    Returns the (real) user ID of this process. 

    Process.uid #=> 501

     static VALUE
proc_getuid(VALUE obj)
{
 rb_uid_t uid = getuid();
 return UIDT2NUM(uid);
}
    Process::Sys.issetugid → true or false click to toggle source

    Returns true if the process was created as a result of an execve(2) system call which had either of the setuid or setgid bits set (and extra privileges were given as a result) or if it has changed any of its real, effective or saved user or group IDs since it began execution. 

     static VALUE
p_sys_issetugid(VALUE obj)
{
 if (issetugid()) {
 return Qtrue;
 }
 else {
 return Qfalse;
 }
}
    Process::Sys.setegid(group) → nil click to toggle source

    Set the effective group ID of the calling process to group. Not available on all platforms. 

     static VALUE
p_sys_setegid(VALUE obj, VALUE id)
{
 check_gid_switch();
 if (setegid(OBJ2GID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.seteuid(user) → nil click to toggle source

    Set the effective user ID of the calling process to user. Not available on all platforms. 

     static VALUE
p_sys_seteuid(VALUE obj, VALUE id)
{
 check_uid_switch();
 if (seteuid(OBJ2UID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setgid(group) → nil click to toggle source

    Set the group ID of the current process to group. Not available on all platforms. 

     static VALUE
p_sys_setgid(VALUE obj, VALUE id)
{
 check_gid_switch();
 if (setgid(OBJ2GID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setregid(rid, eid) → nil click to toggle source

    Sets the (group) real and/or effective group IDs of the current process to rid and eid, respectively. A value of -1 for either means to leave that ID unchanged. Not available on all platforms. 

     static VALUE
p_sys_setregid(VALUE obj, VALUE rid, VALUE eid)
{
 rb_gid_t rgid, egid;
 PREPARE_GETGRNAM;
 check_gid_switch();
 rgid = OBJ2GID(rid);
 egid = OBJ2GID(eid);
 FINISH_GETGRNAM;
 if (setregid(rgid, egid) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setresgid(rid, eid, sid) → nil click to toggle source

    Sets the (group) real, effective, and saved user IDs of the current process to rid, eid, and sid respectively. A value of -1 for any value means to leave that ID unchanged. Not available on all platforms. 

     static VALUE
p_sys_setresgid(VALUE obj, VALUE rid, VALUE eid, VALUE sid)
{
 rb_gid_t rgid, egid, sgid;
 PREPARE_GETGRNAM;
 check_gid_switch();
 rgid = OBJ2GID(rid);
 egid = OBJ2GID(eid);
 sgid = OBJ2GID(sid);
 FINISH_GETGRNAM;
 if (setresgid(rgid, egid, sgid) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setresuid(rid, eid, sid) → nil click to toggle source

    Sets the (user) real, effective, and saved user IDs of the current process to rid, eid, and sid respectively. A value of -1 for any value means to leave that ID unchanged. Not available on all platforms. 

     static VALUE
p_sys_setresuid(VALUE obj, VALUE rid, VALUE eid, VALUE sid)
{
 rb_uid_t ruid, euid, suid;
 PREPARE_GETPWNAM;
 check_uid_switch();
 ruid = OBJ2UID1(rid);
 euid = OBJ2UID1(eid);
 suid = OBJ2UID1(sid);
 FINISH_GETPWNAM;
 if (setresuid(ruid, euid, suid) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setreuid(rid, eid) → nil click to toggle source

    Sets the (user) real and/or effective user IDs of the current process to rid and eid, respectively. A value of -1 for either means to leave that ID unchanged. Not available on all platforms. 

     static VALUE
p_sys_setreuid(VALUE obj, VALUE rid, VALUE eid)
{
 rb_uid_t ruid, euid;
 PREPARE_GETPWNAM;
 check_uid_switch();
 ruid = OBJ2UID1(rid);
 euid = OBJ2UID1(eid);
 FINISH_GETPWNAM;
 if (setreuid(ruid, euid) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setrgid(group) → nil click to toggle source

    Set the real group ID of the calling process to group. Not available on all platforms. 

     static VALUE
p_sys_setrgid(VALUE obj, VALUE id)
{
 check_gid_switch();
 if (setrgid(OBJ2GID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setruid(user) → nil click to toggle source

    Set the real user ID of the calling process to user. Not available on all platforms. 

     static VALUE
p_sys_setruid(VALUE obj, VALUE id)
{
 check_uid_switch();
 if (setruid(OBJ2UID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}
    Process::Sys.setuid(user) → nil click to toggle source

    Set the user ID of the current process to user. Not available on all platforms. 

     static VALUE
p_sys_setuid(VALUE obj, VALUE id)
{
 check_uid_switch();
 if (setuid(OBJ2UID(id)) != 0) rb_sys_fail(0);
 return Qnil;
}

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