The Process::Sys
module contains UID
and GID
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.
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); }
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); }
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); }
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); }
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; } }
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; }
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; }
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; }
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; }
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; }
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; }
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; }
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; }