3753 lines
87 KiB
C
3753 lines
87 KiB
C
/**********************************************************************
|
|
|
|
process.c -
|
|
|
|
$Author: nobu $
|
|
$Date: 2006/08/16 02:46:10 $
|
|
created at: Tue Aug 10 14:30:50 JST 1993
|
|
|
|
Copyright (C) 1993-2003 Yukihiro Matsumoto
|
|
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
|
|
Copyright (C) 2000 Information-technology Promotion Agency, Japan
|
|
|
|
**********************************************************************/
|
|
|
|
#include "ruby.h"
|
|
#include "rubysig.h"
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#ifdef HAVE_STDLIB_H
|
|
#include <stdlib.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#ifdef __DJGPP__
|
|
#include <process.h>
|
|
#endif
|
|
|
|
#include <time.h>
|
|
#include <ctype.h>
|
|
|
|
#ifndef EXIT_SUCCESS
|
|
#define EXIT_SUCCESS 0
|
|
#endif
|
|
#ifndef EXIT_FAILURE
|
|
#define EXIT_FAILURE 1
|
|
#endif
|
|
|
|
struct timeval rb_time_interval _((VALUE));
|
|
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
# include <sys/wait.h>
|
|
#endif
|
|
#ifdef HAVE_GETPRIORITY
|
|
# include <sys/resource.h>
|
|
#endif
|
|
#include "st.h"
|
|
|
|
#ifdef __EMX__
|
|
#undef HAVE_GETPGRP
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_GRP_H
|
|
#include <grp.h>
|
|
#endif
|
|
|
|
#if defined(HAVE_TIMES) || defined(_WIN32)
|
|
static VALUE S_Tms;
|
|
#endif
|
|
|
|
#ifndef WIFEXITED
|
|
#define WIFEXITED(w) (((w) & 0xff) == 0)
|
|
#endif
|
|
#ifndef WIFSIGNALED
|
|
#define WIFSIGNALED(w) (((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
|
|
#endif
|
|
#ifndef WIFSTOPPED
|
|
#define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
|
|
#endif
|
|
#ifndef WEXITSTATUS
|
|
#define WEXITSTATUS(w) (((w) >> 8) & 0xff)
|
|
#endif
|
|
#ifndef WTERMSIG
|
|
#define WTERMSIG(w) ((w) & 0x7f)
|
|
#endif
|
|
#ifndef WSTOPSIG
|
|
#define WSTOPSIG WEXITSTATUS
|
|
#endif
|
|
|
|
#if defined(__APPLE__) && ( defined(__MACH__) || defined(__DARWIN__) ) && !defined(__MacOS_X__)
|
|
#define __MacOS_X__ 1
|
|
#endif
|
|
|
|
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
|
|
#define HAVE_44BSD_SETUID 1
|
|
#define HAVE_44BSD_SETGID 1
|
|
#endif
|
|
|
|
#ifdef __NetBSD__
|
|
#undef HAVE_SETRUID
|
|
#undef HAVE_SETRGID
|
|
#endif
|
|
|
|
#if defined(__MacOS_X__) || defined(__bsdi__)
|
|
#define BROKEN_SETREUID 1
|
|
#define BROKEN_SETREGID 1
|
|
#endif
|
|
|
|
#ifdef BROKEN_SETREUID
|
|
#define setreuid ruby_setreuid
|
|
#endif
|
|
#ifdef BROKEN_SETREGID
|
|
#define setregid ruby_setregid
|
|
#endif
|
|
|
|
#if defined(HAVE_44BSD_SETUID) || defined(__MacOS_X__)
|
|
#if !defined(USE_SETREUID) && !defined(BROKEN_SETREUID)
|
|
#define OBSOLETE_SETREUID 1
|
|
#endif
|
|
#if !defined(USE_SETREGID) && !defined(BROKEN_SETREGID)
|
|
#define OBSOLETE_SETREGID 1
|
|
#endif
|
|
#endif
|
|
|
|
#define preserving_errno(stmts) \
|
|
do {int saved_errno = errno; stmts; errno = saved_errno;} while (0)
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.pid => fixnum
|
|
*
|
|
* Returns the process id of this process. Not available on all
|
|
* platforms.
|
|
*
|
|
* Process.pid #=> 27415
|
|
*/
|
|
|
|
static VALUE
|
|
get_pid()
|
|
{
|
|
rb_secure(2);
|
|
return INT2FIX(getpid());
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.ppid => fixnum
|
|
*
|
|
* Returns the process id of the parent of this process. Always
|
|
* returns 0 on NT. Not available on all platforms.
|
|
*
|
|
* puts "I am #{Process.pid}"
|
|
* Process.fork { puts "Dad is #{Process.ppid}" }
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* I am 27417
|
|
* Dad is 27417
|
|
*/
|
|
|
|
static VALUE
|
|
get_ppid()
|
|
{
|
|
rb_secure(2);
|
|
#ifdef _WIN32
|
|
return INT2FIX(0);
|
|
#else
|
|
return INT2FIX(getppid());
|
|
#endif
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
*
|
|
* Document-class: Process::Status
|
|
*
|
|
* <code>Process::Status</code> encapsulates the information on the
|
|
* status of a running or terminated system process. The built-in
|
|
* variable <code>$?</code> is either +nil+ or a
|
|
* <code>Process::Status</code> object.
|
|
*
|
|
* fork { exit 99 } #=> 26557
|
|
* Process.wait #=> 26557
|
|
* $?.class #=> Process::Status
|
|
* $?.to_i #=> 25344
|
|
* $? >> 8 #=> 99
|
|
* $?.stopped? #=> false
|
|
* $?.exited? #=> true
|
|
* $?.exitstatus #=> 99
|
|
*
|
|
* Posix systems record information on processes using a 16-bit
|
|
* integer. The lower bits record the process status (stopped,
|
|
* exited, signaled) and the upper bits possibly contain additional
|
|
* information (for example the program's return code in the case of
|
|
* exited processes). Pre Ruby 1.8, these bits were exposed directly
|
|
* to the Ruby program. Ruby now encapsulates these in a
|
|
* <code>Process::Status</code> object. To maximize compatibility,
|
|
* however, these objects retain a bit-oriented interface. In the
|
|
* descriptions that follow, when we talk about the integer value of
|
|
* _stat_, we're referring to this 16 bit value.
|
|
*/
|
|
|
|
static VALUE rb_cProcStatus;
|
|
VALUE rb_last_status = Qnil;
|
|
|
|
static void
|
|
last_status_set(status, pid)
|
|
int status, pid;
|
|
{
|
|
rb_last_status = rb_obj_alloc(rb_cProcStatus);
|
|
rb_iv_set(rb_last_status, "status", INT2FIX(status));
|
|
rb_iv_set(rb_last_status, "pid", INT2FIX(pid));
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.to_i => fixnum
|
|
* stat.to_int => fixnum
|
|
*
|
|
* Returns the bits in _stat_ as a <code>Fixnum</code>. Poking
|
|
* around in these bits is platform dependent.
|
|
*
|
|
* fork { exit 0xab } #=> 26566
|
|
* Process.wait #=> 26566
|
|
* sprintf('%04x', $?.to_i) #=> "ab00"
|
|
*/
|
|
|
|
static VALUE
|
|
pst_to_i(st)
|
|
VALUE st;
|
|
{
|
|
return rb_iv_get(st, "status");
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.to_s => string
|
|
*
|
|
* Equivalent to _stat_<code>.to_i.to_s</code>.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_to_s(st)
|
|
VALUE st;
|
|
{
|
|
return rb_fix2str(pst_to_i(st), 10);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.pid => fixnum
|
|
*
|
|
* Returns the process ID that this status object represents.
|
|
*
|
|
* fork { exit } #=> 26569
|
|
* Process.wait #=> 26569
|
|
* $?.pid #=> 26569
|
|
*/
|
|
|
|
static VALUE
|
|
pst_pid(st)
|
|
VALUE st;
|
|
{
|
|
return rb_iv_get(st, "pid");
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.inspect => string
|
|
*
|
|
* Override the inspection method.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_inspect(st)
|
|
VALUE st;
|
|
{
|
|
VALUE pid;
|
|
int status;
|
|
VALUE str;
|
|
char buf[256];
|
|
|
|
pid = pst_pid(st);
|
|
status = NUM2INT(st);
|
|
|
|
snprintf(buf, sizeof(buf), "#<%s: pid=%ld", rb_class2name(CLASS_OF(st)), NUM2LONG(pid));
|
|
str = rb_str_new2(buf);
|
|
if (WIFSTOPPED(status)) {
|
|
int stopsig = WSTOPSIG(status);
|
|
const char *signame = ruby_signal_name(stopsig);
|
|
if (signame) {
|
|
snprintf(buf, sizeof(buf), ",stopped(SIG%s=%d)", signame, stopsig);
|
|
}
|
|
else {
|
|
snprintf(buf, sizeof(buf), ",stopped(%d)", stopsig);
|
|
}
|
|
rb_str_cat2(str, buf);
|
|
}
|
|
if (WIFSIGNALED(status)) {
|
|
int termsig = WTERMSIG(status);
|
|
const char *signame = ruby_signal_name(termsig);
|
|
if (signame) {
|
|
snprintf(buf, sizeof(buf), ",signaled(SIG%s=%d)", signame, termsig);
|
|
}
|
|
else {
|
|
snprintf(buf, sizeof(buf), ",signaled(%d)", termsig);
|
|
}
|
|
rb_str_cat2(str, buf);
|
|
}
|
|
if (WIFEXITED(status)) {
|
|
snprintf(buf, sizeof(buf), ",exited(%d)", WEXITSTATUS(status));
|
|
rb_str_cat2(str, buf);
|
|
}
|
|
#ifdef WCOREDUMP
|
|
if (WCOREDUMP(status)) {
|
|
rb_str_cat2(str, ",coredumped");
|
|
}
|
|
#endif
|
|
rb_str_cat2(str, ">");
|
|
return str;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat == other => true or false
|
|
*
|
|
* Returns +true+ if the integer value of _stat_
|
|
* equals <em>other</em>.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_equal(st1, st2)
|
|
VALUE st1, st2;
|
|
{
|
|
if (st1 == st2) return Qtrue;
|
|
return rb_equal(pst_to_i(st1), st2);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat & num => fixnum
|
|
*
|
|
* Logical AND of the bits in _stat_ with <em>num</em>.
|
|
*
|
|
* fork { exit 0x37 }
|
|
* Process.wait
|
|
* sprintf('%04x', $?.to_i) #=> "3700"
|
|
* sprintf('%04x', $? & 0x1e00) #=> "1600"
|
|
*/
|
|
|
|
static VALUE
|
|
pst_bitand(st1, st2)
|
|
VALUE st1, st2;
|
|
{
|
|
int status = NUM2INT(st1) & NUM2INT(st2);
|
|
|
|
return INT2NUM(status);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat >> num => fixnum
|
|
*
|
|
* Shift the bits in _stat_ right <em>num</em> places.
|
|
*
|
|
* fork { exit 99 } #=> 26563
|
|
* Process.wait #=> 26563
|
|
* $?.to_i #=> 25344
|
|
* $? >> 8 #=> 99
|
|
*/
|
|
|
|
static VALUE
|
|
pst_rshift(st1, st2)
|
|
VALUE st1, st2;
|
|
{
|
|
int status = NUM2INT(st1) >> NUM2INT(st2);
|
|
|
|
return INT2NUM(status);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.stopped? => true or false
|
|
*
|
|
* Returns +true+ if this process is stopped. This is only
|
|
* returned if the corresponding <code>wait</code> call had the
|
|
* <code>WUNTRACED</code> flag set.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wifstopped(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFSTOPPED(status))
|
|
return Qtrue;
|
|
else
|
|
return Qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.stopsig => fixnum or nil
|
|
*
|
|
* Returns the number of the signal that caused _stat_ to stop
|
|
* (or +nil+ if self is not stopped).
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wstopsig(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFSTOPPED(status))
|
|
return INT2NUM(WSTOPSIG(status));
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.signaled? => true or false
|
|
*
|
|
* Returns +true+ if _stat_ terminated because of
|
|
* an uncaught signal.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wifsignaled(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFSIGNALED(status))
|
|
return Qtrue;
|
|
else
|
|
return Qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.termsig => fixnum or nil
|
|
*
|
|
* Returns the number of the signal that caused _stat_ to
|
|
* terminate (or +nil+ if self was not terminated by an
|
|
* uncaught signal).
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wtermsig(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFSIGNALED(status))
|
|
return INT2NUM(WTERMSIG(status));
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.exited? => true or false
|
|
*
|
|
* Returns +true+ if _stat_ exited normally (for
|
|
* example using an <code>exit()</code> call or finishing the
|
|
* program).
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wifexited(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFEXITED(status))
|
|
return Qtrue;
|
|
else
|
|
return Qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.exitstatus => fixnum or nil
|
|
*
|
|
* Returns the least significant eight bits of the return code of
|
|
* _stat_. Only available if <code>exited?</code> is
|
|
* +true+.
|
|
*
|
|
* fork { } #=> 26572
|
|
* Process.wait #=> 26572
|
|
* $?.exited? #=> true
|
|
* $?.exitstatus #=> 0
|
|
*
|
|
* fork { exit 99 } #=> 26573
|
|
* Process.wait #=> 26573
|
|
* $?.exited? #=> true
|
|
* $?.exitstatus #=> 99
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wexitstatus(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (WIFEXITED(status))
|
|
return INT2NUM(WEXITSTATUS(status));
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.success? => true, false or nil
|
|
*
|
|
* Returns +true+ if _stat_ is successful, +false+ if not.
|
|
* Returns +nil+ if <code>exited?</code> is not +true+.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_success_p(st)
|
|
VALUE st;
|
|
{
|
|
int status = NUM2INT(st);
|
|
|
|
if (!WIFEXITED(status))
|
|
return Qnil;
|
|
return WEXITSTATUS(status) == EXIT_SUCCESS ? Qtrue : Qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* stat.coredump? => true or false
|
|
*
|
|
* Returns +true+ if _stat_ generated a coredump
|
|
* when it terminated. Not available on all platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
pst_wcoredump(st)
|
|
VALUE st;
|
|
{
|
|
#ifdef WCOREDUMP
|
|
int status = NUM2INT(st);
|
|
|
|
if (WCOREDUMP(status))
|
|
return Qtrue;
|
|
else
|
|
return Qfalse;
|
|
#else
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
#if !defined(HAVE_WAITPID) && !defined(HAVE_WAIT4)
|
|
#define NO_WAITPID
|
|
static st_table *pid_tbl;
|
|
#endif
|
|
|
|
int
|
|
rb_waitpid(pid, st, flags)
|
|
int pid;
|
|
int *st;
|
|
int flags;
|
|
{
|
|
int result;
|
|
#ifndef NO_WAITPID
|
|
int oflags = flags;
|
|
if (!rb_thread_alone()) { /* there're other threads to run */
|
|
flags |= WNOHANG;
|
|
}
|
|
|
|
retry:
|
|
TRAP_BEG;
|
|
#ifdef HAVE_WAITPID
|
|
result = waitpid(pid, st, flags);
|
|
#else /* HAVE_WAIT4 */
|
|
result = wait4(pid, st, flags, NULL);
|
|
#endif
|
|
TRAP_END;
|
|
if (result < 0) {
|
|
if (errno == EINTR) {
|
|
rb_thread_polling();
|
|
goto retry;
|
|
}
|
|
return -1;
|
|
}
|
|
if (result == 0) {
|
|
if (oflags & WNOHANG) return 0;
|
|
rb_thread_polling();
|
|
if (rb_thread_alone()) flags = oflags;
|
|
goto retry;
|
|
}
|
|
#else /* NO_WAITPID */
|
|
if (pid_tbl && st_lookup(pid_tbl, pid, st)) {
|
|
last_status_set(*st, pid);
|
|
st_delete(pid_tbl, (st_data_t*)&pid, NULL);
|
|
return pid;
|
|
}
|
|
|
|
if (flags) {
|
|
rb_raise(rb_eArgError, "can't do waitpid with flags");
|
|
}
|
|
|
|
for (;;) {
|
|
TRAP_BEG;
|
|
result = wait(st);
|
|
TRAP_END;
|
|
if (result < 0) {
|
|
if (errno == EINTR) {
|
|
rb_thread_schedule();
|
|
continue;
|
|
}
|
|
return -1;
|
|
}
|
|
if (result == pid) {
|
|
break;
|
|
}
|
|
if (!pid_tbl)
|
|
pid_tbl = st_init_numtable();
|
|
st_insert(pid_tbl, pid, st);
|
|
if (!rb_thread_alone()) rb_thread_schedule();
|
|
}
|
|
#endif
|
|
if (result > 0) {
|
|
last_status_set(*st, result);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
#ifdef NO_WAITPID
|
|
struct wait_data {
|
|
int pid;
|
|
int status;
|
|
};
|
|
|
|
static int
|
|
wait_each(pid, status, data)
|
|
int pid, status;
|
|
struct wait_data *data;
|
|
{
|
|
if (data->status != -1) return ST_STOP;
|
|
|
|
data->pid = pid;
|
|
data->status = status;
|
|
return ST_DELETE;
|
|
}
|
|
|
|
static int
|
|
waitall_each(pid, status, ary)
|
|
int pid, status;
|
|
VALUE ary;
|
|
{
|
|
last_status_set(status, pid);
|
|
rb_ary_push(ary, rb_assoc_new(INT2NUM(pid), rb_last_status));
|
|
return ST_DELETE;
|
|
}
|
|
#endif
|
|
|
|
|
|
/* [MG]:FIXME: I wasn't sure how this should be done, since ::wait()
|
|
has historically been documented as if it didn't take any arguments
|
|
despite the fact that it's just an alias for ::waitpid(). The way I
|
|
have it below is more truthful, but a little confusing.
|
|
|
|
I also took the liberty of putting in the pid values, as they're
|
|
pretty useful, and it looked as if the original 'ri' output was
|
|
supposed to contain them after "[...]depending on the value of
|
|
aPid:".
|
|
|
|
The 'ansi' and 'bs' formats of the ri output don't display the
|
|
definition list for some reason, but the plain text one does.
|
|
*/
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.wait() => fixnum
|
|
* Process.wait(pid=-1, flags=0) => fixnum
|
|
* Process.waitpid(pid=-1, flags=0) => fixnum
|
|
*
|
|
* Waits for a child process to exit, returns its process id, and
|
|
* sets <code>$?</code> to a <code>Process::Status</code> object
|
|
* containing information on that process. Which child it waits on
|
|
* depends on the value of _pid_:
|
|
*
|
|
* > 0:: Waits for the child whose process ID equals _pid_.
|
|
*
|
|
* 0:: Waits for any child whose process group ID equals that of the
|
|
* calling process.
|
|
*
|
|
* -1:: Waits for any child process (the default if no _pid_ is
|
|
* given).
|
|
*
|
|
* < -1:: Waits for any child whose process group ID equals the absolute
|
|
* value of _pid_.
|
|
*
|
|
* The _flags_ argument may be a logical or of the flag values
|
|
* <code>Process::WNOHANG</code> (do not block if no child available)
|
|
* or <code>Process::WUNTRACED</code> (return stopped children that
|
|
* haven't been reported). Not all flags are available on all
|
|
* platforms, but a flag value of zero will work on all platforms.
|
|
*
|
|
* Calling this method raises a <code>SystemError</code> if there are
|
|
* no child processes. Not available on all platforms.
|
|
*
|
|
* include Process
|
|
* fork { exit 99 } #=> 27429
|
|
* wait #=> 27429
|
|
* $?.exitstatus #=> 99
|
|
*
|
|
* pid = fork { sleep 3 } #=> 27440
|
|
* Time.now #=> Wed Apr 09 08:57:09 CDT 2003
|
|
* waitpid(pid, Process::WNOHANG) #=> nil
|
|
* Time.now #=> Wed Apr 09 08:57:09 CDT 2003
|
|
* waitpid(pid, 0) #=> 27440
|
|
* Time.now #=> Wed Apr 09 08:57:12 CDT 2003
|
|
*/
|
|
|
|
static VALUE
|
|
proc_wait(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE vpid, vflags;
|
|
int pid, flags, status;
|
|
|
|
rb_secure(2);
|
|
flags = 0;
|
|
rb_scan_args(argc, argv, "02", &vpid, &vflags);
|
|
if (argc == 0) {
|
|
pid = -1;
|
|
}
|
|
else {
|
|
pid = NUM2INT(vpid);
|
|
if (argc == 2 && !NIL_P(vflags)) {
|
|
flags = NUM2UINT(vflags);
|
|
}
|
|
}
|
|
if ((pid = rb_waitpid(pid, &status, flags)) < 0)
|
|
rb_sys_fail(0);
|
|
if (pid == 0) {
|
|
return rb_last_status = Qnil;
|
|
}
|
|
return INT2FIX(pid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.wait2(pid=-1, flags=0) => [pid, status]
|
|
* Process.waitpid2(pid=-1, flags=0) => [pid, status]
|
|
*
|
|
* Waits for a child process to exit (see Process::waitpid for exact
|
|
* semantics) and returns an array containing the process id and the
|
|
* exit status (a <code>Process::Status</code> object) of that
|
|
* child. Raises a <code>SystemError</code> if there are no child
|
|
* processes.
|
|
*
|
|
* Process.fork { exit 99 } #=> 27437
|
|
* pid, status = Process.wait2
|
|
* pid #=> 27437
|
|
* status.exitstatus #=> 99
|
|
*/
|
|
|
|
static VALUE
|
|
proc_wait2(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE pid = proc_wait(argc, argv);
|
|
if (NIL_P(pid)) return Qnil;
|
|
return rb_assoc_new(pid, rb_last_status);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.waitall => [ [pid1,status1], ...]
|
|
*
|
|
* Waits for all children, returning an array of
|
|
* _pid_/_status_ pairs (where _status_ is a
|
|
* <code>Process::Status</code> object).
|
|
*
|
|
* fork { sleep 0.2; exit 2 } #=> 27432
|
|
* fork { sleep 0.1; exit 1 } #=> 27433
|
|
* fork { exit 0 } #=> 27434
|
|
* p Process.waitall
|
|
*
|
|
* <em>produces</em>:
|
|
*
|
|
* [[27434, #<Process::Status: pid=27434,exited(0)>],
|
|
* [27433, #<Process::Status: pid=27433,exited(1)>],
|
|
* [27432, #<Process::Status: pid=27432,exited(2)>]]
|
|
*/
|
|
|
|
static VALUE
|
|
proc_waitall()
|
|
{
|
|
VALUE result;
|
|
int pid, status;
|
|
|
|
rb_secure(2);
|
|
result = rb_ary_new();
|
|
#ifdef NO_WAITPID
|
|
if (pid_tbl) {
|
|
st_foreach(pid_tbl, waitall_each, result);
|
|
}
|
|
|
|
for (pid = -1;;) {
|
|
pid = wait(&status);
|
|
if (pid == -1) {
|
|
if (errno == ECHILD)
|
|
break;
|
|
if (errno == EINTR) {
|
|
rb_thread_schedule();
|
|
continue;
|
|
}
|
|
rb_sys_fail(0);
|
|
}
|
|
last_status_set(status, pid);
|
|
rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
|
|
}
|
|
#else
|
|
rb_last_status = Qnil;
|
|
for (pid = -1;;) {
|
|
pid = rb_waitpid(-1, &status, 0);
|
|
if (pid == -1) {
|
|
if (errno == ECHILD)
|
|
break;
|
|
rb_sys_fail(0);
|
|
}
|
|
rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
|
|
}
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
detach_process_watcher(arg)
|
|
void *arg;
|
|
{
|
|
int pid = (int)(VALUE)arg, status;
|
|
|
|
while (rb_waitpid(pid, &status, WNOHANG) == 0) {
|
|
rb_thread_sleep(1);
|
|
}
|
|
return rb_last_status;
|
|
}
|
|
|
|
VALUE
|
|
rb_detach_process(pid)
|
|
int pid;
|
|
{
|
|
return rb_thread_create(detach_process_watcher, (void*)(VALUE)pid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.detach(pid) => thread
|
|
*
|
|
* Some operating systems retain the status of terminated child
|
|
* processes until the parent collects that status (normally using
|
|
* some variant of <code>wait()</code>. If the parent never collects
|
|
* this status, the child stays around as a <em>zombie</em> process.
|
|
* <code>Process::detach</code> prevents this by setting up a
|
|
* separate Ruby thread whose sole job is to reap the status of the
|
|
* process _pid_ when it terminates. Use <code>detach</code>
|
|
* only when you do not intent to explicitly wait for the child to
|
|
* terminate. <code>detach</code> only checks the status
|
|
* periodically (currently once each second).
|
|
*
|
|
* The waiting thread returns the exit status of the detached process
|
|
* when it terminates, so you can use <code>Thread#join</code> to
|
|
* know the result. If specified _pid_ is not a valid child process
|
|
* ID, the thread returns +nil+ immediately.
|
|
*
|
|
* In this first example, we don't reap the first child process, so
|
|
* it appears as a zombie in the process status display.
|
|
*
|
|
* p1 = fork { sleep 0.1 }
|
|
* p2 = fork { sleep 0.2 }
|
|
* Process.waitpid(p2)
|
|
* sleep 2
|
|
* system("ps -ho pid,state -p #{p1}")
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* 27389 Z
|
|
*
|
|
* In the next example, <code>Process::detach</code> is used to reap
|
|
* the child automatically.
|
|
*
|
|
* p1 = fork { sleep 0.1 }
|
|
* p2 = fork { sleep 0.2 }
|
|
* Process.detach(p1)
|
|
* Process.waitpid(p2)
|
|
* sleep 2
|
|
* system("ps -ho pid,state -p #{p1}")
|
|
*
|
|
* <em>(produces no output)</em>
|
|
*/
|
|
|
|
static VALUE
|
|
proc_detach(VALUE obj, VALUE pid)
|
|
{
|
|
rb_secure(2);
|
|
return rb_detach_process(NUM2INT(pid));
|
|
}
|
|
|
|
#ifndef HAVE_STRING_H
|
|
char *strtok();
|
|
#endif
|
|
|
|
#ifdef HAVE_SETITIMER
|
|
#define before_exec() rb_thread_stop_timer()
|
|
#define after_exec() rb_thread_start_timer()
|
|
#else
|
|
#define before_exec()
|
|
#define after_exec()
|
|
#endif
|
|
|
|
extern char *dln_find_exe();
|
|
|
|
static void
|
|
security(str)
|
|
char *str;
|
|
{
|
|
if (rb_env_path_tainted()) {
|
|
if (rb_safe_level() > 0) {
|
|
rb_raise(rb_eSecurityError, "Insecure PATH - %s", str);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
proc_exec_v(argv, prog)
|
|
char **argv;
|
|
char *prog;
|
|
{
|
|
if (!prog)
|
|
prog = argv[0];
|
|
security(prog);
|
|
prog = dln_find_exe(prog, 0);
|
|
if (!prog)
|
|
return -1;
|
|
|
|
#if (defined(MSDOS) && !defined(DJGPP)) || defined(__human68k__) || defined(__EMX__) || defined(OS2)
|
|
{
|
|
#if defined(__human68k__)
|
|
#define COMMAND "command.x"
|
|
#endif
|
|
#if defined(__EMX__) || defined(OS2) /* OS/2 emx */
|
|
#define COMMAND "cmd.exe"
|
|
#endif
|
|
#if (defined(MSDOS) && !defined(DJGPP))
|
|
#define COMMAND "command.com"
|
|
#endif
|
|
char *extension;
|
|
|
|
if ((extension = strrchr(prog, '.')) != NULL && strcasecmp(extension, ".bat") == 0) {
|
|
char **new_argv;
|
|
char *p;
|
|
int n;
|
|
|
|
for (n = 0; argv[n]; n++)
|
|
/* no-op */;
|
|
new_argv = ALLOCA_N(char*, n + 2);
|
|
for (; n > 0; n--)
|
|
new_argv[n + 1] = argv[n];
|
|
new_argv[1] = strcpy(ALLOCA_N(char, strlen(argv[0]) + 1), argv[0]);
|
|
for (p = new_argv[1]; *p != '\0'; p++)
|
|
if (*p == '/')
|
|
*p = '\\';
|
|
new_argv[0] = COMMAND;
|
|
argv = new_argv;
|
|
prog = dln_find_exe(argv[0], 0);
|
|
if (!prog) {
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
#endif /* MSDOS or __human68k__ or __EMX__ */
|
|
before_exec();
|
|
execv(prog, argv);
|
|
preserving_errno(after_exec());
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
proc_exec_n(argc, argv, progv)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE progv;
|
|
{
|
|
char *prog = 0;
|
|
char **args;
|
|
int i;
|
|
|
|
if (progv) {
|
|
prog = RSTRING(progv)->ptr;
|
|
}
|
|
args = ALLOCA_N(char*, argc+1);
|
|
for (i=0; i<argc; i++) {
|
|
SafeStringValue(argv[i]);
|
|
args[i] = RSTRING(argv[i])->ptr;
|
|
}
|
|
args[i] = 0;
|
|
if (args[0]) {
|
|
return proc_exec_v(args, prog);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
rb_proc_exec(str)
|
|
const char *str;
|
|
{
|
|
const char *s = str;
|
|
char *ss, *t;
|
|
char **argv, **a;
|
|
|
|
while (*str && ISSPACE(*str))
|
|
str++;
|
|
|
|
#ifdef _WIN32
|
|
before_exec();
|
|
do_spawn(P_OVERLAY, (char *)str);
|
|
after_exec();
|
|
#else
|
|
for (s=str; *s; s++) {
|
|
if (*s != ' ' && !ISALPHA(*s) && strchr("*?{}[]<>()~&|\\$;'`\"\n",*s)) {
|
|
#if defined(MSDOS)
|
|
int status;
|
|
before_exec();
|
|
status = system(str);
|
|
after_exec();
|
|
if (status != -1)
|
|
exit(status);
|
|
#else
|
|
#if defined(__human68k__) || defined(__CYGWIN32__) || defined(__EMX__)
|
|
char *shell = dln_find_exe("sh", 0);
|
|
int status = -1;
|
|
before_exec();
|
|
if (shell)
|
|
execl(shell, "sh", "-c", str, (char *) NULL);
|
|
else
|
|
status = system(str);
|
|
after_exec();
|
|
if (status != -1)
|
|
exit(status);
|
|
#else
|
|
before_exec();
|
|
execl("/bin/sh", "sh", "-c", str, (char *)NULL);
|
|
preserving_errno(after_exec());
|
|
#endif
|
|
#endif
|
|
return -1;
|
|
}
|
|
}
|
|
a = argv = ALLOCA_N(char*, (s-str)/2+2);
|
|
ss = ALLOCA_N(char, s-str+1);
|
|
strcpy(ss, str);
|
|
if ((*a++ = strtok(ss, " \t")) != 0) {
|
|
while ((t = strtok(NULL, " \t")) != 0) {
|
|
*a++ = t;
|
|
}
|
|
*a = NULL;
|
|
}
|
|
if (argv[0]) {
|
|
return proc_exec_v(argv, 0);
|
|
}
|
|
errno = ENOENT;
|
|
#endif /* _WIN32 */
|
|
return -1;
|
|
}
|
|
|
|
#if defined(__human68k__) || defined(__DJGPP__) || defined(_WIN32)
|
|
static int
|
|
proc_spawn_v(argv, prog)
|
|
char **argv;
|
|
char *prog;
|
|
{
|
|
char *extension;
|
|
int status;
|
|
|
|
if (!prog)
|
|
prog = argv[0];
|
|
security(prog);
|
|
prog = dln_find_exe(prog, 0);
|
|
if (!prog)
|
|
return -1;
|
|
|
|
#if defined(__human68k__)
|
|
if ((extension = strrchr(prog, '.')) != NULL && strcasecmp(extension, ".bat") == 0) {
|
|
char **new_argv;
|
|
char *p;
|
|
int n;
|
|
|
|
for (n = 0; argv[n]; n++)
|
|
/* no-op */;
|
|
new_argv = ALLOCA_N(char*, n + 2);
|
|
for (; n > 0; n--)
|
|
new_argv[n + 1] = argv[n];
|
|
new_argv[1] = strcpy(ALLOCA_N(char, strlen(argv[0]) + 1), argv[0]);
|
|
for (p = new_argv[1]; *p != '\0'; p++)
|
|
if (*p == '/')
|
|
*p = '\\';
|
|
new_argv[0] = COMMAND;
|
|
argv = new_argv;
|
|
prog = dln_find_exe(argv[0], 0);
|
|
if (!prog) {
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
}
|
|
#endif
|
|
before_exec();
|
|
#if defined(_WIN32)
|
|
status = do_aspawn(P_WAIT, prog, argv);
|
|
#else
|
|
status = spawnv(P_WAIT, prog, argv);
|
|
#endif
|
|
after_exec();
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
proc_spawn_n(argc, argv, prog)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE prog;
|
|
{
|
|
char **args;
|
|
int i;
|
|
|
|
args = ALLOCA_N(char*, argc + 1);
|
|
for (i = 0; i < argc; i++) {
|
|
SafeStringValue(argv[i]);
|
|
args[i] = RSTRING(argv[i])->ptr;
|
|
}
|
|
if (prog)
|
|
SafeStringValue(prog);
|
|
args[i] = (char*) 0;
|
|
if (args[0])
|
|
return proc_spawn_v(args, prog ? RSTRING(prog)->ptr : 0);
|
|
return -1;
|
|
}
|
|
|
|
#if !defined(_WIN32)
|
|
static int
|
|
proc_spawn(sv)
|
|
VALUE sv;
|
|
{
|
|
char *str;
|
|
char *s, *t;
|
|
char **argv, **a;
|
|
int status;
|
|
|
|
SafeStringValue(sv);
|
|
str = s = RSTRING(sv)->ptr;
|
|
for (s = str; *s; s++) {
|
|
if (*s != ' ' && !ISALPHA(*s) && strchr("*?{}[]<>()~&|\\$;'`\"\n",*s)) {
|
|
char *shell = dln_find_exe("sh", 0);
|
|
before_exec();
|
|
status = shell?spawnl(P_WAIT,shell,"sh","-c",str,(char*)NULL):system(str);
|
|
after_exec();
|
|
return status;
|
|
}
|
|
}
|
|
a = argv = ALLOCA_N(char*, (s - str) / 2 + 2);
|
|
s = ALLOCA_N(char, s - str + 1);
|
|
strcpy(s, str);
|
|
if (*a++ = strtok(s, " \t")) {
|
|
while (t = strtok(NULL, " \t"))
|
|
*a++ = t;
|
|
*a = NULL;
|
|
}
|
|
return argv[0] ? proc_spawn_v(argv, 0) : -1;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
struct rb_exec_arg {
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE prog;
|
|
};
|
|
|
|
static void
|
|
proc_prepare_args(e, argc, argv, prog)
|
|
struct rb_exec_arg *e;
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE prog;
|
|
{
|
|
int i;
|
|
|
|
MEMZERO(e, struct rb_exec_arg, 1);
|
|
if (prog) {
|
|
SafeStringValue(prog);
|
|
StringValueCStr(prog);
|
|
}
|
|
for (i = 0; i < argc; i++) {
|
|
SafeStringValue(argv[i]);
|
|
StringValueCStr(argv[i]);
|
|
}
|
|
security(RSTRING(prog ? prog : argv[0])->ptr);
|
|
e->prog = prog;
|
|
e->argc = argc;
|
|
e->argv = argv;
|
|
}
|
|
|
|
static VALUE
|
|
proc_exec_args(earg)
|
|
VALUE earg;
|
|
{
|
|
struct rb_exec_arg *e = (struct rb_exec_arg *)earg;
|
|
int argc = e->argc;
|
|
VALUE *argv = e->argv;
|
|
VALUE prog = e->prog;
|
|
|
|
if (argc == 1 && prog == 0) {
|
|
return (VALUE)rb_proc_exec(RSTRING(argv[0])->ptr);
|
|
}
|
|
else {
|
|
return (VALUE)proc_exec_n(argc, argv, prog);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* exec(command [, arg, ...])
|
|
*
|
|
* Replaces the current process by running the given external _command_.
|
|
* If +exec+ is given a single argument, that argument is
|
|
* taken as a line that is subject to shell expansion before being
|
|
* executed. If multiple arguments are given, the second and subsequent
|
|
* arguments are passed as parameters to _command_ with no shell
|
|
* expansion. If the first argument is a two-element array, the first
|
|
* element is the command to be executed, and the second argument is
|
|
* used as the <code>argv[0]</code> value, which may show up in process
|
|
* listings. In MSDOS environments, the command is executed in a
|
|
* subshell; otherwise, one of the <code>exec(2)</code> system calls is
|
|
* used, so the running command may inherit some of the environment of
|
|
* the original program (including open file descriptors).
|
|
*
|
|
* exec "echo *" # echoes list of files in current directory
|
|
* # never get here
|
|
*
|
|
*
|
|
* exec "echo", "*" # echoes an asterisk
|
|
* # never get here
|
|
*/
|
|
|
|
VALUE
|
|
rb_f_exec(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE prog = 0;
|
|
VALUE tmp;
|
|
struct rb_exec_arg earg;
|
|
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
tmp = rb_check_array_type(argv[0]);
|
|
if (!NIL_P(tmp)) {
|
|
if (RARRAY(tmp)->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(tmp)->ptr[0];
|
|
argv[0] = RARRAY(tmp)->ptr[1];
|
|
SafeStringValue(prog);
|
|
}
|
|
proc_prepare_args(&earg, argc, argv, prog);
|
|
proc_exec_args((VALUE)&earg);
|
|
rb_sys_fail(RSTRING(argv[0])->ptr);
|
|
return Qnil; /* dummy */
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Kernel.fork [{ block }] => fixnum or nil
|
|
* Process.fork [{ block }] => fixnum or nil
|
|
*
|
|
* Creates a subprocess. If a block is specified, that block is run
|
|
* in the subprocess, and the subprocess terminates with a status of
|
|
* zero. Otherwise, the +fork+ call returns twice, once in
|
|
* the parent, returning the process ID of the child, and once in
|
|
* the child, returning _nil_. The child process can exit using
|
|
* <code>Kernel.exit!</code> to avoid running any
|
|
* <code>at_exit</code> functions. The parent process should
|
|
* use <code>Process.wait</code> to collect the termination statuses
|
|
* of its children or use <code>Process.detach</code> to register
|
|
* disinterest in their status; otherwise, the operating system
|
|
* may accumulate zombie processes.
|
|
*
|
|
* The thread calling fork is the only thread in the created child process.
|
|
* fork doesn't copy other threads.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_fork(obj)
|
|
VALUE obj;
|
|
{
|
|
#if !defined(__human68k__) && !defined(_WIN32) && !defined(__MACOS__) && !defined(__EMX__) && !defined(__VMS)
|
|
int pid;
|
|
|
|
rb_secure(2);
|
|
|
|
#ifndef __VMS
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
#endif
|
|
|
|
switch (pid = fork()) {
|
|
case 0:
|
|
#ifdef linux
|
|
after_exec();
|
|
#endif
|
|
rb_thread_atfork();
|
|
if (rb_block_given_p()) {
|
|
int status;
|
|
|
|
rb_protect(rb_yield, Qundef, &status);
|
|
ruby_stop(status);
|
|
}
|
|
return Qnil;
|
|
|
|
case -1:
|
|
rb_sys_fail("fork(2)");
|
|
return Qnil;
|
|
|
|
default:
|
|
return INT2FIX(pid);
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.exit!(fixnum=-1)
|
|
*
|
|
* Exits the process immediately. No exit handlers are
|
|
* run. <em>fixnum</em> is returned to the underlying system as the
|
|
* exit status.
|
|
*
|
|
* Process.exit!(0)
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_exit_bang(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
VALUE status;
|
|
int istatus;
|
|
|
|
rb_secure(4);
|
|
if (rb_scan_args(argc, argv, "01", &status) == 1) {
|
|
switch (status) {
|
|
case Qtrue:
|
|
istatus = EXIT_SUCCESS;
|
|
break;
|
|
case Qfalse:
|
|
istatus = EXIT_FAILURE;
|
|
break;
|
|
default:
|
|
istatus = NUM2INT(status);
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
istatus = EXIT_FAILURE;
|
|
}
|
|
_exit(istatus);
|
|
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
#if defined(sun)
|
|
#define signal(a,b) sigset(a,b)
|
|
#endif
|
|
|
|
void
|
|
rb_syswait(pid)
|
|
int pid;
|
|
{
|
|
static int overriding;
|
|
#ifdef SIGHUP
|
|
RETSIGTYPE (*hfunc)_((int));
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
RETSIGTYPE (*qfunc)_((int));
|
|
#endif
|
|
RETSIGTYPE (*ifunc)_((int));
|
|
int status;
|
|
int i, hooked = Qfalse;
|
|
|
|
if (!overriding) {
|
|
#ifdef SIGHUP
|
|
hfunc = signal(SIGHUP, SIG_IGN);
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
qfunc = signal(SIGQUIT, SIG_IGN);
|
|
#endif
|
|
ifunc = signal(SIGINT, SIG_IGN);
|
|
overriding = Qtrue;
|
|
hooked = Qtrue;
|
|
}
|
|
|
|
do {
|
|
i = rb_waitpid(pid, &status, 0);
|
|
} while (i == -1 && errno == EINTR);
|
|
|
|
if (hooked) {
|
|
#ifdef SIGHUP
|
|
signal(SIGHUP, hfunc);
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
signal(SIGQUIT, qfunc);
|
|
#endif
|
|
signal(SIGINT, ifunc);
|
|
overriding = Qfalse;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* system(cmd [, arg, ...]) => true or false
|
|
*
|
|
* Executes _cmd_ in a subshell, returning +true+ if
|
|
* the command was found and ran successfully, +false+
|
|
* otherwise. An error status is available in <code>$?</code>. The
|
|
* arguments are processed in the same way as for
|
|
* <code>Kernel::exec</code>.
|
|
*
|
|
* system("echo *")
|
|
* system("echo", "*")
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* config.h main.rb
|
|
* *
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_system(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
int status;
|
|
#if defined(__EMX__)
|
|
VALUE cmd;
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
argv[0] = RARRAY(argv[0])->ptr[0];
|
|
}
|
|
cmd = rb_ary_join(rb_ary_new4(argc, argv), rb_str_new2(" "));
|
|
|
|
SafeStringValue(cmd);
|
|
status = do_spawn(RSTRING(cmd)->ptr);
|
|
last_status_set(status, 0);
|
|
#elif defined(__human68k__) || defined(__DJGPP__) || defined(_WIN32)
|
|
volatile VALUE prog = 0;
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(argv[0])->ptr[0];
|
|
argv[0] = RARRAY(argv[0])->ptr[1];
|
|
}
|
|
|
|
if (argc == 1 && prog == 0) {
|
|
#if defined(_WIN32)
|
|
SafeStringValue(argv[0]);
|
|
status = do_spawn(P_WAIT, RSTRING(argv[0])->ptr);
|
|
#else
|
|
status = proc_spawn(argv[0]);
|
|
#endif
|
|
}
|
|
else {
|
|
status = proc_spawn_n(argc, argv, prog);
|
|
}
|
|
#if !defined(_WIN32)
|
|
last_status_set(status == -1 ? 127 : status, 0);
|
|
#else
|
|
if (status == -1)
|
|
last_status_set(0x7f << 8, 0);
|
|
#endif
|
|
#elif defined(__VMS)
|
|
VALUE cmd;
|
|
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
argv[0] = RARRAY(argv[0])->ptr[0];
|
|
}
|
|
cmd = rb_ary_join(rb_ary_new4(argc, argv), rb_str_new2(" "));
|
|
|
|
SafeStringValue(cmd);
|
|
status = system(RSTRING(cmd)->ptr);
|
|
last_status_set((status & 0xff) << 8, 0);
|
|
#else
|
|
volatile VALUE prog = 0;
|
|
int pid;
|
|
struct rb_exec_arg earg;
|
|
RETSIGTYPE (*chfunc)(int);
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(argv[0])->ptr[0];
|
|
argv[0] = RARRAY(argv[0])->ptr[1];
|
|
}
|
|
proc_prepare_args(&earg, argc, argv, prog);
|
|
|
|
chfunc = signal(SIGCHLD, SIG_DFL);
|
|
retry:
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
/* child process */
|
|
rb_thread_atfork();
|
|
rb_protect(proc_exec_args, (VALUE)&earg, NULL);
|
|
_exit(127);
|
|
}
|
|
if (pid < 0) {
|
|
if (errno == EAGAIN) {
|
|
rb_thread_sleep(1);
|
|
goto retry;
|
|
}
|
|
}
|
|
else {
|
|
rb_syswait(pid);
|
|
}
|
|
signal(SIGCHLD, chfunc);
|
|
if (pid < 0) rb_sys_fail(0);
|
|
status = NUM2INT(rb_last_status);
|
|
#endif
|
|
|
|
if (status == EXIT_SUCCESS) return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* sleep([duration]) => fixnum
|
|
*
|
|
* Suspends the current thread for _duration_ seconds (which may be any number,
|
|
* including a +Float+ with fractional seconds). Returns the actual number of
|
|
* seconds slept (rounded), which may be less than that asked for if another
|
|
* thread calls <code>Thread#run</code>. Zero arguments causes +sleep+ to sleep
|
|
* forever.
|
|
*
|
|
* Time.new #=> Wed Apr 09 08:56:32 CDT 2003
|
|
* sleep 1.2 #=> 1
|
|
* Time.new #=> Wed Apr 09 08:56:33 CDT 2003
|
|
* sleep 1.9 #=> 2
|
|
* Time.new #=> Wed Apr 09 08:56:35 CDT 2003
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_sleep(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
int beg, end;
|
|
|
|
beg = time(0);
|
|
if (argc == 0) {
|
|
rb_thread_sleep_forever();
|
|
}
|
|
else if (argc == 1) {
|
|
rb_thread_wait_for(rb_time_interval(argv[0]));
|
|
}
|
|
else {
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
end = time(0) - beg;
|
|
|
|
return INT2FIX(end);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.getpgrp => integer
|
|
*
|
|
* Returns the process group ID for this process. Not available on
|
|
* all platforms.
|
|
*
|
|
* Process.getpgid(0) #=> 25527
|
|
* Process.getpgrp #=> 25527
|
|
*/
|
|
|
|
#if defined(SIGCLD) && !defined(SIGCHLD)
|
|
# define SIGCHLD SIGCLD
|
|
#endif
|
|
|
|
static VALUE
|
|
proc_getpgrp()
|
|
{
|
|
int pgrp;
|
|
|
|
rb_secure(2);
|
|
#if defined(HAVE_GETPGRP) && defined(GETPGRP_VOID)
|
|
pgrp = getpgrp();
|
|
if (pgrp < 0) rb_sys_fail(0);
|
|
return INT2FIX(pgrp);
|
|
#else
|
|
# ifdef HAVE_GETPGID
|
|
pgrp = getpgid(0);
|
|
if (pgrp < 0) rb_sys_fail(0);
|
|
return INT2FIX(pgrp);
|
|
# else
|
|
rb_notimplement();
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.setpgrp => 0
|
|
*
|
|
* Equivalent to <code>setpgid(0,0)</code>. Not available on all
|
|
* platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setpgrp()
|
|
{
|
|
rb_secure(2);
|
|
/* check for posix setpgid() first; this matches the posix */
|
|
/* getpgrp() above. It appears that configure will set SETPGRP_VOID */
|
|
/* even though setpgrp(0,0) would be prefered. The posix call avoids */
|
|
/* this confusion. */
|
|
#ifdef HAVE_SETPGID
|
|
if (setpgid(0,0) < 0) rb_sys_fail(0);
|
|
#elif defined(HAVE_SETPGRP) && defined(SETPGRP_VOID)
|
|
if (setpgrp() < 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.getpgid(pid) => integer
|
|
*
|
|
* Returns the process group ID for the given process id. Not
|
|
* available on all platforms.
|
|
*
|
|
* Process.getpgid(Process.ppid()) #=> 25527
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getpgid(obj, pid)
|
|
VALUE obj, pid;
|
|
{
|
|
#if defined(HAVE_GETPGID) && !defined(__CHECKER__)
|
|
int i;
|
|
|
|
rb_secure(2);
|
|
i = getpgid(NUM2INT(pid));
|
|
if (i < 0) rb_sys_fail(0);
|
|
return INT2NUM(i);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.setpgid(pid, integer) => 0
|
|
*
|
|
* Sets the process group ID of _pid_ (0 indicates this
|
|
* process) to <em>integer</em>. Not available on all platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setpgid(obj, pid, pgrp)
|
|
VALUE obj, pid, pgrp;
|
|
{
|
|
#ifdef HAVE_SETPGID
|
|
int ipid, ipgrp;
|
|
|
|
rb_secure(2);
|
|
ipid = NUM2INT(pid);
|
|
ipgrp = NUM2INT(pgrp);
|
|
|
|
if (setpgid(ipid, ipgrp) < 0) rb_sys_fail(0);
|
|
return INT2FIX(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.setsid => fixnum
|
|
*
|
|
* Establishes this process as a new session and process group
|
|
* leader, with no controlling tty. Returns the session id. Not
|
|
* available on all platforms.
|
|
*
|
|
* Process.setsid #=> 27422
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setsid()
|
|
{
|
|
#if defined(HAVE_SETSID)
|
|
int pid;
|
|
|
|
rb_secure(2);
|
|
pid = setsid();
|
|
if (pid < 0) rb_sys_fail(0);
|
|
return INT2FIX(pid);
|
|
#elif defined(HAVE_SETPGRP) && defined(TIOCNOTTY)
|
|
rb_pid_t pid;
|
|
int ret;
|
|
|
|
rb_secure(2);
|
|
pid = getpid();
|
|
#if defined(SETPGRP_VOID)
|
|
ret = setpgrp();
|
|
/* If `pid_t setpgrp(void)' is equivalent to setsid(),
|
|
`ret' will be the same value as `pid', and following open() will fail.
|
|
In Linux, `int setpgrp(void)' is equivalent to setpgid(0, 0). */
|
|
#else
|
|
ret = setpgrp(0, pid);
|
|
#endif
|
|
if (ret == -1) rb_sys_fail(0);
|
|
|
|
if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
|
|
ioctl(fd, TIOCNOTTY, NULL);
|
|
close(fd);
|
|
}
|
|
return INT2FIX(pid);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.getpriority(kind, integer) => fixnum
|
|
*
|
|
* Gets the scheduling priority for specified process, process group,
|
|
* or user. <em>kind</em> indicates the kind of entity to find: one
|
|
* of <code>Process::PRIO_PGRP</code>,
|
|
* <code>Process::PRIO_USER</code>, or
|
|
* <code>Process::PRIO_PROCESS</code>. _integer_ is an id
|
|
* indicating the particular process, process group, or user (an id
|
|
* of 0 means _current_). Lower priorities are more favorable
|
|
* for scheduling. Not available on all platforms.
|
|
*
|
|
* Process.getpriority(Process::PRIO_USER, 0) #=> 19
|
|
* Process.getpriority(Process::PRIO_PROCESS, 0) #=> 19
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getpriority(obj, which, who)
|
|
VALUE obj, which, who;
|
|
{
|
|
#ifdef HAVE_GETPRIORITY
|
|
int prio, iwhich, iwho;
|
|
|
|
rb_secure(2);
|
|
iwhich = NUM2INT(which);
|
|
iwho = NUM2INT(who);
|
|
|
|
errno = 0;
|
|
prio = getpriority(iwhich, iwho);
|
|
if (errno) rb_sys_fail(0);
|
|
return INT2FIX(prio);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.setpriority(kind, integer, priority) => 0
|
|
*
|
|
* See <code>Process#getpriority</code>.
|
|
*
|
|
* Process.setpriority(Process::PRIO_USER, 0, 19) #=> 0
|
|
* Process.setpriority(Process::PRIO_PROCESS, 0, 19) #=> 0
|
|
* Process.getpriority(Process::PRIO_USER, 0) #=> 19
|
|
* Process.getpriority(Process::PRIO_PROCESS, 0) #=> 19
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setpriority(obj, which, who, prio)
|
|
VALUE obj, which, who, prio;
|
|
{
|
|
#ifdef HAVE_GETPRIORITY
|
|
int iwhich, iwho, iprio;
|
|
|
|
rb_secure(2);
|
|
iwhich = NUM2INT(which);
|
|
iwho = NUM2INT(who);
|
|
iprio = NUM2INT(prio);
|
|
|
|
if (setpriority(iwhich, iwho, iprio) < 0)
|
|
rb_sys_fail(0);
|
|
return INT2FIX(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
#if SIZEOF_RLIM_T == SIZEOF_INT
|
|
# define RLIM2NUM(v) UINT2NUM(v)
|
|
# define NUM2RLIM(v) NUM2UINT(v)
|
|
#elif SIZEOF_RLIM_T == SIZEOF_LONG
|
|
# define RLIM2NUM(v) ULONG2NUM(v)
|
|
# define NUM2RLIM(v) NUM2ULONG(v)
|
|
#elif SIZEOF_RLIM_T == SIZEOF_LONG_LONG
|
|
# define RLIM2NUM(v) ULL2NUM(v)
|
|
# define NUM2RLIM(v) NUM2ULL(v)
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.getrlimit(resource) => [cur_limit, max_limit]
|
|
*
|
|
* Gets the resource limit of the process.
|
|
* _cur_limit_ means current (soft) limit and
|
|
* _max_limit_ means maximum (hard) limit.
|
|
*
|
|
* _resource_ indicates the kind of resource to limit:
|
|
* such as <code>Process::RLIMIT_CORE</code>,
|
|
* <code>Process::RLIMIT_CPU</code>, etc.
|
|
* See Process.setrlimit for details.
|
|
*
|
|
* _cur_limit_ and _max_limit_ may be <code>Process::RLIM_INFINITY</code>,
|
|
* <code>Process::RLIM_SAVED_MAX</code> or
|
|
* <code>Process::RLIM_SAVED_CUR</code>.
|
|
* See Process.setrlimit and the system getrlimit(2) manual for details.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getrlimit(VALUE obj, VALUE resource)
|
|
{
|
|
#if defined(HAVE_GETRLIMIT) && defined(RLIM2NUM)
|
|
struct rlimit rlim;
|
|
|
|
rb_secure(2);
|
|
|
|
if (getrlimit(NUM2INT(resource), &rlim) < 0) {
|
|
rb_sys_fail("getrlimit");
|
|
}
|
|
return rb_assoc_new(RLIM2NUM(rlim.rlim_cur), RLIM2NUM(rlim.rlim_max));
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.setrlimit(resource, cur_limit, max_limit) => nil
|
|
* Process.setrlimit(resource, cur_limit) => nil
|
|
*
|
|
* Sets the resource limit of the process.
|
|
* _cur_limit_ means current (soft) limit and
|
|
* _max_limit_ means maximum (hard) limit.
|
|
*
|
|
* If _max_limit_ is not given, _cur_limit_ is used.
|
|
*
|
|
* _resource_ indicates the kind of resource to limit.
|
|
* The list of resources are OS dependent.
|
|
* Ruby may support following resources.
|
|
*
|
|
* [Process::RLIMIT_CORE] core size (bytes) (SUSv3)
|
|
* [Process::RLIMIT_CPU] CPU time (seconds) (SUSv3)
|
|
* [Process::RLIMIT_DATA] data segment (bytes) (SUSv3)
|
|
* [Process::RLIMIT_FSIZE] file size (bytes) (SUSv3)
|
|
* [Process::RLIMIT_NOFILE] file descriptors (number) (SUSv3)
|
|
* [Process::RLIMIT_STACK] stack size (bytes) (SUSv3)
|
|
* [Process::RLIMIT_AS] total available memory (bytes) (SUSv3, NetBSD, FreeBSD, OpenBSD but 4.4BSD-Lite)
|
|
* [Process::RLIMIT_MEMLOCK] total size for mlock(2) (bytes) (4.4BSD, GNU/Linux)
|
|
* [Process::RLIMIT_NPROC] number of processes for the user (number) (4.4BSD, GNU/Linux)
|
|
* [Process::RLIMIT_RSS] resident memory size (bytes) (4.2BSD, GNU/Linux)
|
|
* [Process::RLIMIT_SBSIZE] all socket buffers (bytes) (NetBSD, FreeBSD)
|
|
*
|
|
* Other <code>Process::RLIMIT_???</code> constants may be defined.
|
|
*
|
|
* _cur_limit_ and _max_limit_ may be <code>Process::RLIM_INFINITY</code>,
|
|
* which means that the resource is not limited.
|
|
* They may be <code>Process::RLIM_SAVED_MAX</code> or
|
|
* <code>Process::RLIM_SAVED_CUR</code> too.
|
|
* See system setrlimit(2) manual for details.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setrlimit(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
#if defined(HAVE_SETRLIMIT) && defined(NUM2RLIM)
|
|
VALUE resource, rlim_cur, rlim_max;
|
|
struct rlimit rlim;
|
|
|
|
rb_secure(2);
|
|
|
|
rb_scan_args(argc, argv, "21", &resource, &rlim_cur, &rlim_max);
|
|
if (rlim_max == Qnil)
|
|
rlim_max = rlim_cur;
|
|
|
|
rlim.rlim_cur = NUM2RLIM(rlim_cur);
|
|
rlim.rlim_max = NUM2RLIM(rlim_max);
|
|
|
|
if (setrlimit(NUM2INT(resource), &rlim) < 0) {
|
|
rb_sys_fail("setrlimit");
|
|
}
|
|
return Qnil;
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static int under_uid_switch = 0;
|
|
static void
|
|
check_uid_switch()
|
|
{
|
|
rb_secure(2);
|
|
if (under_uid_switch) {
|
|
rb_raise(rb_eRuntimeError, "can't handle UID while evaluating block given to Process::UID.switch method");
|
|
}
|
|
}
|
|
|
|
static int under_gid_switch = 0;
|
|
static void
|
|
check_gid_switch()
|
|
{
|
|
rb_secure(2);
|
|
if (under_gid_switch) {
|
|
rb_raise(rb_eRuntimeError, "can't handle GID while evaluating block given to Process::UID.switch method");
|
|
}
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* Document-class: Process::Sys
|
|
*
|
|
* The <code>Process::Sys</code> 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 <code>Process</code>,
|
|
* <code>Process::UID</code>, and <code>Process::GID</code> modules.
|
|
*/
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setuid(integer) => nil
|
|
*
|
|
* Set the user ID of the current process to _integer_. Not
|
|
* available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setuid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETUID
|
|
check_uid_switch();
|
|
if (setuid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setruid(integer) => nil
|
|
*
|
|
* Set the real user ID of the calling process to _integer_.
|
|
* Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setruid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETRUID
|
|
check_uid_switch();
|
|
if (setruid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.seteuid(integer) => nil
|
|
*
|
|
* Set the effective user ID of the calling process to
|
|
* _integer_. Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_seteuid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETEUID
|
|
check_uid_switch();
|
|
if (seteuid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setreuid(rid, eid) => nil
|
|
*
|
|
* Sets the (integer) real and/or effective user IDs of the current
|
|
* process to _rid_ and _eid_, respectively. A value of
|
|
* <code>-1</code> for either means to leave that ID unchanged. Not
|
|
* available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setreuid(obj, rid, eid)
|
|
VALUE obj, rid, eid;
|
|
{
|
|
#if defined HAVE_SETREUID
|
|
check_uid_switch();
|
|
if (setreuid(NUM2INT(rid),NUM2INT(eid)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setresuid(rid, eid, sid) => nil
|
|
*
|
|
* Sets the (integer) real, effective, and saved user IDs of the
|
|
* current process to _rid_, _eid_, and _sid_ respectively. A
|
|
* value of <code>-1</code> for any value means to
|
|
* leave that ID unchanged. Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setresuid(obj, rid, eid, sid)
|
|
VALUE obj, rid, eid, sid;
|
|
{
|
|
#if defined HAVE_SETRESUID
|
|
check_uid_switch();
|
|
if (setresuid(NUM2INT(rid),NUM2INT(eid),NUM2INT(sid)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.uid => fixnum
|
|
* Process::UID.rid => fixnum
|
|
* Process::Sys.getuid => fixnum
|
|
*
|
|
* Returns the (real) user ID of this process.
|
|
*
|
|
* Process.uid #=> 501
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getuid(obj)
|
|
VALUE obj;
|
|
{
|
|
int uid = getuid();
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.uid= integer => numeric
|
|
*
|
|
* Sets the (integer) user ID for this process. Not available on all
|
|
* platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setuid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int uid = NUM2INT(id);
|
|
|
|
check_uid_switch();
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (setresuid(uid, -1, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREUID
|
|
if (setreuid(uid, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETRUID
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETUID
|
|
{
|
|
if (geteuid() == uid) {
|
|
if (setuid(uid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* Document-class: Process::UID
|
|
*
|
|
* The <code>Process::UID</code> module contains a collection of
|
|
* module functions which can be used to portably get, set, and
|
|
* switch the current process's real, effective, and saved user IDs.
|
|
*
|
|
*/
|
|
|
|
static int SAVED_USER_ID = -1;
|
|
|
|
#ifdef BROKEN_SETREUID
|
|
int
|
|
setreuid(ruid, euid)
|
|
rb_uid_t ruid, euid;
|
|
{
|
|
if (ruid != -1 && ruid != getuid()) {
|
|
if (euid == -1) euid = geteuid();
|
|
if (setuid(ruid) < 0) return -1;
|
|
}
|
|
if (euid != -1 && euid != geteuid()) {
|
|
if (seteuid(euid) < 0) return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.change_privilege(integer) => fixnum
|
|
*
|
|
* Change the current process's real and effective user ID to that
|
|
* specified by _integer_. Returns the new user ID. Not
|
|
* available on all platforms.
|
|
*
|
|
* [Process.uid, Process.euid] #=> [0, 0]
|
|
* Process::UID.change_privilege(31) #=> 31
|
|
* [Process.uid, Process.euid] #=> [31, 31]
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_change_privilege(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int uid;
|
|
|
|
check_uid_switch();
|
|
|
|
uid = NUM2INT(id);
|
|
|
|
if (geteuid() == 0) { /* root-user */
|
|
#if defined(HAVE_SETRESUID)
|
|
if (setresuid(uid, uid, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
#elif defined(HAVE_SETUID)
|
|
if (setuid(uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
#elif defined(HAVE_SETREUID) && !defined(OBSOLETE_SETREUID)
|
|
if (getuid() == uid) {
|
|
if (SAVED_USER_ID == uid) {
|
|
if (setreuid(-1, uid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (uid == 0) { /* (r,e,s) == (root, root, x) */
|
|
if (setreuid(-1, SAVED_USER_ID) < 0) rb_sys_fail(0);
|
|
if (setreuid(SAVED_USER_ID, 0) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = 0; /* (r,e,s) == (x, root, root) */
|
|
if (setreuid(uid, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
} else {
|
|
if (setreuid(0, -1) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = 0;
|
|
if (setreuid(uid, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
}
|
|
}
|
|
} else {
|
|
if (setreuid(uid, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
}
|
|
#elif defined(HAVE_SETRUID) && defined(HAVE_SETEUID)
|
|
if (getuid() == uid) {
|
|
if (SAVED_USER_ID == uid) {
|
|
if (seteuid(uid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (uid == 0) {
|
|
if (setruid(SAVED_USER_ID) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = 0;
|
|
if (setruid(0) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (setruid(0) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = 0;
|
|
if (seteuid(uid) < 0) rb_sys_fail(0);
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
}
|
|
}
|
|
} else {
|
|
if (seteuid(uid) < 0) rb_sys_fail(0);
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
} else { /* unprivileged user */
|
|
#if defined(HAVE_SETRESUID)
|
|
if (setresuid((getuid() == uid)? -1: uid,
|
|
(geteuid() == uid)? -1: uid,
|
|
(SAVED_USER_ID == uid)? -1: uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
#elif defined(HAVE_SETREUID) && !defined(OBSOLETE_SETREUID)
|
|
if (SAVED_USER_ID == uid) {
|
|
if (setreuid((getuid() == uid)? -1: uid,
|
|
(geteuid() == uid)? -1: uid) < 0) rb_sys_fail(0);
|
|
} else if (getuid() != uid) {
|
|
if (setreuid(uid, (geteuid() == uid)? -1: uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
} else if (/* getuid() == uid && */ geteuid() != uid) {
|
|
if (setreuid(geteuid(), uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
if (setreuid(uid, -1) < 0) rb_sys_fail(0);
|
|
} else { /* getuid() == uid && geteuid() == uid */
|
|
if (setreuid(-1, SAVED_USER_ID) < 0) rb_sys_fail(0);
|
|
if (setreuid(SAVED_USER_ID, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
if (setreuid(uid, -1) < 0) rb_sys_fail(0);
|
|
}
|
|
#elif defined(HAVE_SETRUID) && defined(HAVE_SETEUID)
|
|
if (SAVED_USER_ID == uid) {
|
|
if (geteuid() != uid && seteuid(uid) < 0) rb_sys_fail(0);
|
|
if (getuid() != uid && setruid(uid) < 0) rb_sys_fail(0);
|
|
} else if (/* SAVED_USER_ID != uid && */ geteuid() == uid) {
|
|
if (getuid() != uid) {
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
} else {
|
|
if (setruid(SAVED_USER_ID) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
}
|
|
} else if (/* geteuid() != uid && */ getuid() == uid) {
|
|
if (seteuid(uid) < 0) rb_sys_fail(0);
|
|
if (setruid(SAVED_USER_ID) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_44BSD_SETUID
|
|
if (getuid() == uid) {
|
|
/* (r,e,s)==(uid,?,?) ==> (uid,uid,uid) */
|
|
if (setuid(uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_SETEUID
|
|
if (getuid() == uid && SAVED_USER_ID == uid) {
|
|
if (seteuid(uid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_SETUID
|
|
if (getuid() == uid && SAVED_USER_ID == uid) {
|
|
if (setuid(uid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setgid(integer) => nil
|
|
*
|
|
* Set the group ID of the current process to _integer_. Not
|
|
* available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setgid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETGID
|
|
check_gid_switch();
|
|
if (setgid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setrgid(integer) => nil
|
|
*
|
|
* Set the real group ID of the calling process to _integer_.
|
|
* Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setrgid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETRGID
|
|
check_gid_switch();
|
|
if (setrgid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setegid(integer) => nil
|
|
*
|
|
* Set the effective group ID of the calling process to
|
|
* _integer_. Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setegid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
#if defined HAVE_SETEGID
|
|
check_gid_switch();
|
|
if (setegid(NUM2INT(id)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setregid(rid, eid) => nil
|
|
*
|
|
* Sets the (integer) real and/or effective group IDs of the current
|
|
* process to <em>rid</em> and <em>eid</em>, respectively. A value of
|
|
* <code>-1</code> for either means to leave that ID unchanged. Not
|
|
* available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setregid(obj, rid, eid)
|
|
VALUE obj, rid, eid;
|
|
{
|
|
#if defined HAVE_SETREGID
|
|
check_gid_switch();
|
|
if (setregid(NUM2INT(rid),NUM2INT(eid)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.setresgid(rid, eid, sid) => nil
|
|
*
|
|
* Sets the (integer) real, effective, and saved user IDs of the
|
|
* current process to <em>rid</em>, <em>eid</em>, and <em>sid</em>
|
|
* respectively. A value of <code>-1</code> for any value means to
|
|
* leave that ID unchanged. Not available on all platforms.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_sys_setresgid(obj, rid, eid, sid)
|
|
VALUE obj, rid, eid, sid;
|
|
{
|
|
#if defined HAVE_SETRESGID
|
|
check_gid_switch();
|
|
if (setresgid(NUM2INT(rid),NUM2INT(eid),NUM2INT(sid)) != 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return Qnil;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::Sys.issetugid => true or false
|
|
*
|
|
* 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(obj)
|
|
VALUE obj;
|
|
{
|
|
#if defined HAVE_ISSETUGID
|
|
rb_secure(2);
|
|
if (issetugid()) {
|
|
return Qtrue;
|
|
} else {
|
|
return Qfalse;
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
return Qnil; /* not reached */
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.gid => fixnum
|
|
* Process::GID.rid => fixnum
|
|
* Process::Sys.getgid => fixnum
|
|
*
|
|
* Returns the (real) group ID for this process.
|
|
*
|
|
* Process.gid #=> 500
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getgid(obj)
|
|
VALUE obj;
|
|
{
|
|
int gid = getgid();
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.gid= fixnum => fixnum
|
|
*
|
|
* Sets the group ID for this process.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setgid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int gid = NUM2INT(id);
|
|
|
|
check_gid_switch();
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (setresgid(gid, -1, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREGID
|
|
if (setregid(gid, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETRGID
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETGID
|
|
{
|
|
if (getegid() == gid) {
|
|
if (setgid(gid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
|
|
static size_t maxgroups = 32;
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.groups => array
|
|
*
|
|
* Get an <code>Array</code> of the gids of groups in the
|
|
* supplemental group access list for this process.
|
|
*
|
|
* Process.groups #=> [27, 6, 10, 11]
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getgroups(VALUE obj)
|
|
{
|
|
#ifdef HAVE_GETGROUPS
|
|
VALUE ary;
|
|
size_t ngroups;
|
|
rb_gid_t *groups;
|
|
int i;
|
|
|
|
groups = ALLOCA_N(rb_gid_t, maxgroups);
|
|
|
|
ngroups = getgroups(maxgroups, groups);
|
|
if (ngroups == -1)
|
|
rb_sys_fail(0);
|
|
|
|
ary = rb_ary_new();
|
|
for (i = 0; i < ngroups; i++)
|
|
rb_ary_push(ary, INT2NUM(groups[i]));
|
|
|
|
return ary;
|
|
#else
|
|
rb_notimplement();
|
|
return Qnil;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.groups= array => array
|
|
*
|
|
* Set the supplemental group access list to the given
|
|
* <code>Array</code> of group IDs.
|
|
*
|
|
* Process.groups #=> [0, 1, 2, 3, 4, 6, 10, 11, 20, 26, 27]
|
|
* Process.groups = [27, 6, 10, 11] #=> [27, 6, 10, 11]
|
|
* Process.groups #=> [27, 6, 10, 11]
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setgroups(VALUE obj, VALUE ary)
|
|
{
|
|
#ifdef HAVE_SETGROUPS
|
|
size_t ngroups;
|
|
rb_gid_t *groups;
|
|
int i;
|
|
struct group *gr;
|
|
|
|
Check_Type(ary, T_ARRAY);
|
|
|
|
ngroups = RARRAY(ary)->len;
|
|
if (ngroups > maxgroups)
|
|
rb_raise(rb_eArgError, "too many groups, %d max", maxgroups);
|
|
|
|
groups = ALLOCA_N(rb_gid_t, ngroups);
|
|
|
|
for (i = 0; i < ngroups && i < RARRAY(ary)->len; i++) {
|
|
VALUE g = RARRAY(ary)->ptr[i];
|
|
|
|
if (FIXNUM_P(g)) {
|
|
groups[i] = FIX2INT(g);
|
|
}
|
|
else {
|
|
VALUE tmp = rb_check_string_type(g);
|
|
|
|
if (NIL_P(tmp)) {
|
|
groups[i] = NUM2INT(g);
|
|
}
|
|
else {
|
|
gr = getgrnam(RSTRING(tmp)->ptr);
|
|
if (gr == NULL)
|
|
rb_raise(rb_eArgError,
|
|
"can't find group for %s", RSTRING(tmp)->ptr);
|
|
groups[i] = gr->gr_gid;
|
|
}
|
|
}
|
|
}
|
|
|
|
i = setgroups(ngroups, groups);
|
|
if (i == -1)
|
|
rb_sys_fail(0);
|
|
|
|
return proc_getgroups(obj);
|
|
#else
|
|
rb_notimplement();
|
|
return Qnil;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.initgroups(username, gid) => array
|
|
*
|
|
* Initializes the supplemental group access list by reading the
|
|
* system group database and using all groups of which the given user
|
|
* is a member. The group with the specified <em>gid</em> is also
|
|
* added to the list. Returns the resulting <code>Array</code> of the
|
|
* gids of all the groups in the supplementary group access list. Not
|
|
* available on all platforms.
|
|
*
|
|
* Process.groups #=> [0, 1, 2, 3, 4, 6, 10, 11, 20, 26, 27]
|
|
* Process.initgroups( "mgranger", 30 ) #=> [30, 6, 10, 11]
|
|
* Process.groups #=> [30, 6, 10, 11]
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
proc_initgroups(obj, uname, base_grp)
|
|
VALUE obj, uname, base_grp;
|
|
{
|
|
#ifdef HAVE_INITGROUPS
|
|
if (initgroups(StringValuePtr(uname), (rb_gid_t)NUM2INT(base_grp)) != 0) {
|
|
rb_sys_fail(0);
|
|
}
|
|
return proc_getgroups(obj);
|
|
#else
|
|
rb_notimplement();
|
|
return Qnil;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.maxgroups => fixnum
|
|
*
|
|
* Returns the maximum number of gids allowed in the supplemental
|
|
* group access list.
|
|
*
|
|
* Process.maxgroups #=> 32
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getmaxgroups(obj)
|
|
VALUE obj;
|
|
{
|
|
return INT2FIX(maxgroups);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.maxgroups= fixnum => fixnum
|
|
*
|
|
* Sets the maximum number of gids allowed in the supplemental group
|
|
* access list.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setmaxgroups(VALUE obj, VALUE val)
|
|
{
|
|
size_t ngroups = FIX2INT(val);
|
|
|
|
if (ngroups > 4096)
|
|
ngroups = 4096;
|
|
|
|
maxgroups = ngroups;
|
|
|
|
return INT2FIX(maxgroups);
|
|
}
|
|
|
|
|
|
/********************************************************************
|
|
*
|
|
* Document-class: Process::GID
|
|
*
|
|
* The <code>Process::GID</code> module contains a collection of
|
|
* module functions which can be used to portably get, set, and
|
|
* switch the current process's real, effective, and saved group IDs.
|
|
*
|
|
*/
|
|
|
|
static int SAVED_GROUP_ID = -1;
|
|
|
|
#ifdef BROKEN_SETREGID
|
|
int
|
|
setregid(rgid, egid)
|
|
rb_gid_t rgid, egid;
|
|
{
|
|
if (rgid != -1 && rgid != getgid()) {
|
|
if (egid == -1) egid = getegid();
|
|
if (setgid(rgid) < 0) return -1;
|
|
}
|
|
if (egid != -1 && egid != getegid()) {
|
|
if (setegid(egid) < 0) return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.change_privilege(integer) => fixnum
|
|
*
|
|
* Change the current process's real and effective group ID to that
|
|
* specified by _integer_. Returns the new group ID. Not
|
|
* available on all platforms.
|
|
*
|
|
* [Process.gid, Process.egid] #=> [0, 0]
|
|
* Process::GID.change_privilege(33) #=> 33
|
|
* [Process.gid, Process.egid] #=> [33, 33]
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_change_privilege(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int gid;
|
|
|
|
check_gid_switch();
|
|
|
|
gid = NUM2INT(id);
|
|
|
|
if (geteuid() == 0) { /* root-user */
|
|
#if defined(HAVE_SETRESGID)
|
|
if (setresgid(gid, gid, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
#elif defined HAVE_SETGID
|
|
if (setgid(gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
#elif defined(HAVE_SETREGID) && !defined(OBSOLETE_SETREGID)
|
|
if (getgid() == gid) {
|
|
if (SAVED_GROUP_ID == gid) {
|
|
if (setregid(-1, gid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (gid == 0) { /* (r,e,s) == (root, y, x) */
|
|
if (setregid(-1, SAVED_GROUP_ID) < 0) rb_sys_fail(0);
|
|
if (setregid(SAVED_GROUP_ID, 0) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = 0; /* (r,e,s) == (x, root, root) */
|
|
if (setregid(gid, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
} else { /* (r,e,s) == (z, y, x) */
|
|
if (setregid(0, 0) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = 0;
|
|
if (setregid(gid, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
}
|
|
}
|
|
} else {
|
|
if (setregid(gid, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
}
|
|
#elif defined(HAVE_SETRGID) && defined (HAVE_SETEGID)
|
|
if (getgid() == gid) {
|
|
if (SAVED_GROUP_ID == gid) {
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (gid == 0) {
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
if (setrgid(SAVED_GROUP_ID) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = 0;
|
|
if (setrgid(0) < 0) rb_sys_fail(0);
|
|
} else {
|
|
if (setrgid(0) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = 0;
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
}
|
|
}
|
|
} else {
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
} else { /* unprivileged user */
|
|
#if defined(HAVE_SETRESGID)
|
|
if (setresgid((getgid() == gid)? -1: gid,
|
|
(getegid() == gid)? -1: gid,
|
|
(SAVED_GROUP_ID == gid)? -1: gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
#elif defined(HAVE_SETREGID) && !defined(OBSOLETE_SETREGID)
|
|
if (SAVED_GROUP_ID == gid) {
|
|
if (setregid((getgid() == gid)? -1: gid,
|
|
(getegid() == gid)? -1: gid) < 0) rb_sys_fail(0);
|
|
} else if (getgid() != gid) {
|
|
if (setregid(gid, (getegid() == gid)? -1: gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
} else if (/* getgid() == gid && */ getegid() != gid) {
|
|
if (setregid(getegid(), gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
if (setregid(gid, -1) < 0) rb_sys_fail(0);
|
|
} else { /* getgid() == gid && getegid() == gid */
|
|
if (setregid(-1, SAVED_GROUP_ID) < 0) rb_sys_fail(0);
|
|
if (setregid(SAVED_GROUP_ID, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
if (setregid(gid, -1) < 0) rb_sys_fail(0);
|
|
}
|
|
#elif defined(HAVE_SETRGID) && defined(HAVE_SETEGID)
|
|
if (SAVED_GROUP_ID == gid) {
|
|
if (getegid() != gid && setegid(gid) < 0) rb_sys_fail(0);
|
|
if (getgid() != gid && setrgid(gid) < 0) rb_sys_fail(0);
|
|
} else if (/* SAVED_GROUP_ID != gid && */ getegid() == gid) {
|
|
if (getgid() != gid) {
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
} else {
|
|
if (setrgid(SAVED_GROUP_ID) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
}
|
|
} else if (/* getegid() != gid && */ getgid() == gid) {
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
if (setrgid(SAVED_GROUP_ID) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
if (setrgid(gid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_44BSD_SETGID
|
|
if (getgid() == gid) {
|
|
/* (r,e,s)==(gid,?,?) ==> (gid,gid,gid) */
|
|
if (setgid(gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_SETEGID
|
|
if (getgid() == gid && SAVED_GROUP_ID == gid) {
|
|
if (setegid(gid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#elif defined HAVE_SETGID
|
|
if (getgid() == gid && SAVED_GROUP_ID == gid) {
|
|
if (setgid(gid) < 0) rb_sys_fail(0);
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.euid => fixnum
|
|
* Process::UID.eid => fixnum
|
|
* Process::Sys.geteuid => fixnum
|
|
*
|
|
* Returns the effective user ID for this process.
|
|
*
|
|
* Process.euid #=> 501
|
|
*/
|
|
|
|
static VALUE
|
|
proc_geteuid(obj)
|
|
VALUE obj;
|
|
{
|
|
int euid = geteuid();
|
|
return INT2FIX(euid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.euid= integer
|
|
*
|
|
* Sets the effective user ID for this process. Not available on all
|
|
* platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_seteuid(obj, euid)
|
|
VALUE obj, euid;
|
|
{
|
|
check_uid_switch();
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (setresuid(-1, NUM2INT(euid), -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREUID
|
|
if (setreuid(-1, NUM2INT(euid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETEUID
|
|
if (seteuid(NUM2INT(euid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETUID
|
|
euid = NUM2INT(euid);
|
|
if (euid == getuid()) {
|
|
if (setuid(euid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return euid;
|
|
}
|
|
|
|
static VALUE
|
|
rb_seteuid_core(euid)
|
|
int euid;
|
|
{
|
|
int uid;
|
|
|
|
check_uid_switch();
|
|
|
|
uid = getuid();
|
|
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (uid != euid) {
|
|
if (setresuid(-1,euid,euid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = euid;
|
|
} else {
|
|
if (setresuid(-1,euid,-1) < 0) rb_sys_fail(0);
|
|
}
|
|
#elif defined(HAVE_SETREUID) && !defined(OBSOLETE_SETREUID)
|
|
if (setreuid(-1, euid) < 0) rb_sys_fail(0);
|
|
if (uid != euid) {
|
|
if (setreuid(euid,uid) < 0) rb_sys_fail(0);
|
|
if (setreuid(uid,euid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = euid;
|
|
}
|
|
#elif defined HAVE_SETEUID
|
|
if (seteuid(euid) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETUID
|
|
if (geteuid() == 0) rb_sys_fail(0);
|
|
if (setuid(euid) < 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(euid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.grant_privilege(integer) => fixnum
|
|
* Process::UID.eid= integer => fixnum
|
|
*
|
|
* Set the effective user ID, and if possible, the saved user ID of
|
|
* the process to the given _integer_. Returns the new
|
|
* effective user ID. Not available on all platforms.
|
|
*
|
|
* [Process.uid, Process.euid] #=> [0, 0]
|
|
* Process::UID.grant_privilege(31) #=> 31
|
|
* [Process.uid, Process.euid] #=> [0, 31]
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_grant_privilege(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
return rb_seteuid_core(NUM2INT(id));
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.egid => fixnum
|
|
* Process::GID.eid => fixnum
|
|
* Process::Sys.geteid => fixnum
|
|
*
|
|
* Returns the effective group ID for this process. Not available on
|
|
* all platforms.
|
|
*
|
|
* Process.egid #=> 500
|
|
*/
|
|
|
|
static VALUE
|
|
proc_getegid(obj)
|
|
VALUE obj;
|
|
{
|
|
int egid = getegid();
|
|
|
|
return INT2FIX(egid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.egid = fixnum => fixnum
|
|
*
|
|
* Sets the effective group ID for this process. Not available on all
|
|
* platforms.
|
|
*/
|
|
|
|
static VALUE
|
|
proc_setegid(obj, egid)
|
|
VALUE obj, egid;
|
|
{
|
|
check_gid_switch();
|
|
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (setresgid(-1, NUM2INT(egid), -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREGID
|
|
if (setregid(-1, NUM2INT(egid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETEGID
|
|
if (setegid(NUM2INT(egid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETGID
|
|
egid = NUM2INT(egid);
|
|
if (egid == getgid()) {
|
|
if (setgid(egid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return egid;
|
|
}
|
|
|
|
static VALUE
|
|
rb_setegid_core(egid)
|
|
int egid;
|
|
{
|
|
int gid;
|
|
|
|
check_gid_switch();
|
|
|
|
gid = getgid();
|
|
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (gid != egid) {
|
|
if (setresgid(-1,egid,egid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = egid;
|
|
} else {
|
|
if (setresgid(-1,egid,-1) < 0) rb_sys_fail(0);
|
|
}
|
|
#elif defined(HAVE_SETREGID) && !defined(OBSOLETE_SETREGID)
|
|
if (setregid(-1, egid) < 0) rb_sys_fail(0);
|
|
if (gid != egid) {
|
|
if (setregid(egid,gid) < 0) rb_sys_fail(0);
|
|
if (setregid(gid,egid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = egid;
|
|
}
|
|
#elif defined HAVE_SETEGID
|
|
if (setegid(egid) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETGID
|
|
if (geteuid() == 0 /* root user */) rb_sys_fail(0);
|
|
if (setgid(egid) < 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(egid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.grant_privilege(integer) => fixnum
|
|
* Process::GID.eid = integer => fixnum
|
|
*
|
|
* Set the effective group ID, and if possible, the saved group ID of
|
|
* the process to the given _integer_. Returns the new
|
|
* effective group ID. Not available on all platforms.
|
|
*
|
|
* [Process.gid, Process.egid] #=> [0, 0]
|
|
* Process::GID.grant_privilege(31) #=> 33
|
|
* [Process.gid, Process.egid] #=> [0, 33]
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_grant_privilege(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
return rb_setegid_core(NUM2INT(id));
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.re_exchangeable? => true or false
|
|
*
|
|
* Returns +true+ if the real and effective user IDs of a
|
|
* process may be exchanged on the current platform.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_exchangeable()
|
|
{
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
return Qtrue;
|
|
#elif defined(HAVE_SETREUID) && !defined(OBSOLETE_SETREUID)
|
|
return Qtrue;
|
|
#else
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.re_exchange => fixnum
|
|
*
|
|
* Exchange real and effective user IDs and return the new effective
|
|
* user ID. Not available on all platforms.
|
|
*
|
|
* [Process.uid, Process.euid] #=> [0, 31]
|
|
* Process::UID.re_exchange #=> 0
|
|
* [Process.uid, Process.euid] #=> [31, 0]
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_exchange(obj)
|
|
VALUE obj;
|
|
{
|
|
int uid, euid;
|
|
|
|
check_uid_switch();
|
|
|
|
uid = getuid();
|
|
euid = geteuid();
|
|
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (setresuid(euid, uid, uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
#elif defined(HAVE_SETREUID) && !defined(OBSOLETE_SETREUID)
|
|
if (setreuid(euid,uid) < 0) rb_sys_fail(0);
|
|
SAVED_USER_ID = uid;
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.re_exchangeable? => true or false
|
|
*
|
|
* Returns +true+ if the real and effective group IDs of a
|
|
* process may be exchanged on the current platform.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_exchangeable()
|
|
{
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
return Qtrue;
|
|
#elif defined(HAVE_SETREGID) && !defined(OBSOLETE_SETREGID)
|
|
return Qtrue;
|
|
#else
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.re_exchange => fixnum
|
|
*
|
|
* Exchange real and effective group IDs and return the new effective
|
|
* group ID. Not available on all platforms.
|
|
*
|
|
* [Process.gid, Process.egid] #=> [0, 33]
|
|
* Process::GID.re_exchange #=> 0
|
|
* [Process.gid, Process.egid] #=> [33, 0]
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_exchange(obj)
|
|
VALUE obj;
|
|
{
|
|
int gid, egid;
|
|
|
|
check_gid_switch();
|
|
|
|
gid = getgid();
|
|
egid = getegid();
|
|
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (setresgid(egid, gid, gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
#elif defined(HAVE_SETREGID) && !defined(OBSOLETE_SETREGID)
|
|
if (setregid(egid,gid) < 0) rb_sys_fail(0);
|
|
SAVED_GROUP_ID = gid;
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
/* [MG] :FIXME: Is this correct? I'm not sure how to phrase this. */
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.sid_available? => true or false
|
|
*
|
|
* Returns +true+ if the current platform has saved user
|
|
* ID functionality.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_have_saved_id()
|
|
{
|
|
#if defined(HAVE_SETRESUID) || defined(HAVE_SETEUID) || defined(_POSIX_SAVED_IDS)
|
|
return Qtrue;
|
|
#else
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
|
|
#if defined(HAVE_SETRESUID) || defined(HAVE_SETEUID) || defined(_POSIX_SAVED_IDS)
|
|
static VALUE
|
|
p_uid_sw_ensure(id)
|
|
int id;
|
|
{
|
|
under_uid_switch = 0;
|
|
return rb_seteuid_core(id);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::UID.switch => fixnum
|
|
* Process::UID.switch {|| block} => object
|
|
*
|
|
* Switch the effective and real user IDs of the current process. If
|
|
* a <em>block</em> is given, the user IDs will be switched back
|
|
* after the block is executed. Returns the new effective user ID if
|
|
* called without a block, and the return value of the block if one
|
|
* is given.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_uid_switch(obj)
|
|
VALUE obj;
|
|
{
|
|
int uid, euid;
|
|
|
|
check_uid_switch();
|
|
|
|
uid = getuid();
|
|
euid = geteuid();
|
|
|
|
if (uid != euid) {
|
|
proc_seteuid(obj, INT2FIX(uid));
|
|
if (rb_block_given_p()) {
|
|
under_uid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_uid_sw_ensure, SAVED_USER_ID);
|
|
} else {
|
|
return INT2FIX(euid);
|
|
}
|
|
} else if (euid != SAVED_USER_ID) {
|
|
proc_seteuid(obj, INT2FIX(SAVED_USER_ID));
|
|
if (rb_block_given_p()) {
|
|
under_uid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_uid_sw_ensure, euid);
|
|
} else {
|
|
return INT2FIX(uid);
|
|
}
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
|
|
#else
|
|
static VALUE
|
|
p_uid_sw_ensure(obj)
|
|
VALUE obj;
|
|
{
|
|
under_uid_switch = 0;
|
|
return p_uid_exchange(obj);
|
|
}
|
|
|
|
static VALUE
|
|
p_uid_switch(obj)
|
|
VALUE obj;
|
|
{
|
|
int uid, euid;
|
|
|
|
check_uid_switch();
|
|
|
|
uid = getuid();
|
|
euid = geteuid();
|
|
|
|
if (uid == euid) {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
p_uid_exchange(obj);
|
|
if (rb_block_given_p()) {
|
|
under_uid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_uid_sw_ensure, obj);
|
|
} else {
|
|
return INT2FIX(euid);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/* [MG] :FIXME: Is this correct? I'm not sure how to phrase this. */
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.sid_available? => true or false
|
|
*
|
|
* Returns +true+ if the current platform has saved group
|
|
* ID functionality.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_have_saved_id()
|
|
{
|
|
#if defined(HAVE_SETRESGID) || defined(HAVE_SETEGID) || defined(_POSIX_SAVED_IDS)
|
|
return Qtrue;
|
|
#else
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
#if defined(HAVE_SETRESGID) || defined(HAVE_SETEGID) || defined(_POSIX_SAVED_IDS)
|
|
static VALUE
|
|
p_gid_sw_ensure(id)
|
|
int id;
|
|
{
|
|
under_gid_switch = 0;
|
|
return rb_setegid_core(id);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process::GID.switch => fixnum
|
|
* Process::GID.switch {|| block} => object
|
|
*
|
|
* Switch the effective and real group IDs of the current process. If
|
|
* a <em>block</em> is given, the group IDs will be switched back
|
|
* after the block is executed. Returns the new effective group ID if
|
|
* called without a block, and the return value of the block if one
|
|
* is given.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
p_gid_switch(obj)
|
|
VALUE obj;
|
|
{
|
|
int gid, egid;
|
|
|
|
check_gid_switch();
|
|
|
|
gid = getgid();
|
|
egid = getegid();
|
|
|
|
if (gid != egid) {
|
|
proc_setegid(obj, INT2FIX(gid));
|
|
if (rb_block_given_p()) {
|
|
under_gid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_gid_sw_ensure, SAVED_GROUP_ID);
|
|
} else {
|
|
return INT2FIX(egid);
|
|
}
|
|
} else if (egid != SAVED_GROUP_ID) {
|
|
proc_setegid(obj, INT2FIX(SAVED_GROUP_ID));
|
|
if (rb_block_given_p()) {
|
|
under_gid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_gid_sw_ensure, egid);
|
|
} else {
|
|
return INT2FIX(gid);
|
|
}
|
|
} else {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
#else
|
|
static VALUE
|
|
p_gid_sw_ensure(obj)
|
|
VALUE obj;
|
|
{
|
|
under_gid_switch = 0;
|
|
return p_gid_exchange(obj);
|
|
}
|
|
|
|
static VALUE
|
|
p_gid_switch(obj)
|
|
VALUE obj;
|
|
{
|
|
int gid, egid;
|
|
|
|
check_gid_switch();
|
|
|
|
gid = getgid();
|
|
egid = getegid();
|
|
|
|
if (gid == egid) {
|
|
errno = EPERM;
|
|
rb_sys_fail(0);
|
|
}
|
|
p_gid_exchange(obj);
|
|
if (rb_block_given_p()) {
|
|
under_gid_switch = 1;
|
|
return rb_ensure(rb_yield, Qnil, p_gid_sw_ensure, obj);
|
|
} else {
|
|
return INT2FIX(egid);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* Process.times => aStructTms
|
|
*
|
|
* Returns a <code>Tms</code> structure (see <code>Struct::Tms</code>
|
|
* on page 388) that contains user and system CPU times for this
|
|
* process.
|
|
*
|
|
* t = Process.times
|
|
* [ t.utime, t.stime ] #=> [0.0, 0.02]
|
|
*/
|
|
|
|
VALUE
|
|
rb_proc_times(obj)
|
|
VALUE obj;
|
|
{
|
|
#if defined(HAVE_TIMES) && !defined(__CHECKER__)
|
|
const double hertz =
|
|
#ifdef HAVE__SC_CLK_TCK
|
|
(double)sysconf(_SC_CLK_TCK);
|
|
#else
|
|
#ifndef HZ
|
|
# ifdef CLK_TCK
|
|
# define HZ CLK_TCK
|
|
# else
|
|
# define HZ 60
|
|
# endif
|
|
#endif /* HZ */
|
|
HZ;
|
|
#endif
|
|
struct tms buf;
|
|
volatile VALUE utime, stime, cutime, sctime;
|
|
|
|
times(&buf);
|
|
return rb_struct_new(S_Tms,
|
|
utime = rb_float_new(buf.tms_utime / hertz),
|
|
stime = rb_float_new(buf.tms_stime / hertz),
|
|
cutime = rb_float_new(buf.tms_cutime / hertz),
|
|
sctime = rb_float_new(buf.tms_cstime / hertz));
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
VALUE rb_mProcess;
|
|
VALUE rb_mProcUID;
|
|
VALUE rb_mProcGID;
|
|
VALUE rb_mProcID_Syscall;
|
|
|
|
|
|
/*
|
|
* The <code>Process</code> module is a collection of methods used to
|
|
* manipulate processes.
|
|
*/
|
|
|
|
void
|
|
Init_process()
|
|
{
|
|
rb_define_virtual_variable("$$", get_pid, 0);
|
|
rb_define_readonly_variable("$?", &rb_last_status);
|
|
rb_define_global_function("exec", rb_f_exec, -1);
|
|
rb_define_global_function("fork", rb_f_fork, 0);
|
|
rb_define_global_function("exit!", rb_f_exit_bang, -1);
|
|
rb_define_global_function("system", rb_f_system, -1);
|
|
rb_define_global_function("sleep", rb_f_sleep, -1);
|
|
|
|
rb_mProcess = rb_define_module("Process");
|
|
|
|
#if !defined(_WIN32) && !defined(DJGPP)
|
|
#ifdef WNOHANG
|
|
rb_define_const(rb_mProcess, "WNOHANG", INT2FIX(WNOHANG));
|
|
#else
|
|
rb_define_const(rb_mProcess, "WNOHANG", INT2FIX(0));
|
|
#endif
|
|
#ifdef WUNTRACED
|
|
rb_define_const(rb_mProcess, "WUNTRACED", INT2FIX(WUNTRACED));
|
|
#else
|
|
rb_define_const(rb_mProcess, "WUNTRACED", INT2FIX(0));
|
|
#endif
|
|
#endif
|
|
|
|
rb_define_singleton_method(rb_mProcess, "fork", rb_f_fork, 0);
|
|
rb_define_singleton_method(rb_mProcess, "exit!", rb_f_exit_bang, -1);
|
|
rb_define_singleton_method(rb_mProcess, "exit", rb_f_exit, -1); /* in eval.c */
|
|
rb_define_singleton_method(rb_mProcess, "abort", rb_f_abort, -1); /* in eval.c */
|
|
|
|
rb_define_module_function(rb_mProcess, "kill", rb_f_kill, -1); /* in signal.c */
|
|
rb_define_module_function(rb_mProcess, "wait", proc_wait, -1);
|
|
rb_define_module_function(rb_mProcess, "wait2", proc_wait2, -1);
|
|
rb_define_module_function(rb_mProcess, "waitpid", proc_wait, -1);
|
|
rb_define_module_function(rb_mProcess, "waitpid2", proc_wait2, -1);
|
|
rb_define_module_function(rb_mProcess, "waitall", proc_waitall, 0);
|
|
rb_define_module_function(rb_mProcess, "detach", proc_detach, 1);
|
|
|
|
rb_cProcStatus = rb_define_class_under(rb_mProcess, "Status", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cProcStatus), "new");
|
|
|
|
rb_define_method(rb_cProcStatus, "==", pst_equal, 1);
|
|
rb_define_method(rb_cProcStatus, "&", pst_bitand, 1);
|
|
rb_define_method(rb_cProcStatus, ">>", pst_rshift, 1);
|
|
rb_define_method(rb_cProcStatus, "to_i", pst_to_i, 0);
|
|
rb_define_method(rb_cProcStatus, "to_int", pst_to_i, 0);
|
|
rb_define_method(rb_cProcStatus, "to_s", pst_to_s, 0);
|
|
rb_define_method(rb_cProcStatus, "inspect", pst_inspect, 0);
|
|
|
|
rb_define_method(rb_cProcStatus, "pid", pst_pid, 0);
|
|
|
|
rb_define_method(rb_cProcStatus, "stopped?", pst_wifstopped, 0);
|
|
rb_define_method(rb_cProcStatus, "stopsig", pst_wstopsig, 0);
|
|
rb_define_method(rb_cProcStatus, "signaled?", pst_wifsignaled, 0);
|
|
rb_define_method(rb_cProcStatus, "termsig", pst_wtermsig, 0);
|
|
rb_define_method(rb_cProcStatus, "exited?", pst_wifexited, 0);
|
|
rb_define_method(rb_cProcStatus, "exitstatus", pst_wexitstatus, 0);
|
|
rb_define_method(rb_cProcStatus, "success?", pst_success_p, 0);
|
|
rb_define_method(rb_cProcStatus, "coredump?", pst_wcoredump, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "pid", get_pid, 0);
|
|
rb_define_module_function(rb_mProcess, "ppid", get_ppid, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "getpgrp", proc_getpgrp, 0);
|
|
rb_define_module_function(rb_mProcess, "setpgrp", proc_setpgrp, 0);
|
|
rb_define_module_function(rb_mProcess, "getpgid", proc_getpgid, 1);
|
|
rb_define_module_function(rb_mProcess, "setpgid", proc_setpgid, 2);
|
|
|
|
rb_define_module_function(rb_mProcess, "setsid", proc_setsid, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "getpriority", proc_getpriority, 2);
|
|
rb_define_module_function(rb_mProcess, "setpriority", proc_setpriority, 3);
|
|
|
|
#ifdef HAVE_GETPRIORITY
|
|
rb_define_const(rb_mProcess, "PRIO_PROCESS", INT2FIX(PRIO_PROCESS));
|
|
rb_define_const(rb_mProcess, "PRIO_PGRP", INT2FIX(PRIO_PGRP));
|
|
rb_define_const(rb_mProcess, "PRIO_USER", INT2FIX(PRIO_USER));
|
|
#endif
|
|
|
|
rb_define_module_function(rb_mProcess, "getrlimit", proc_getrlimit, 1);
|
|
rb_define_module_function(rb_mProcess, "setrlimit", proc_setrlimit, -1);
|
|
#ifdef RLIM2NUM
|
|
#ifdef RLIM_INFINITY
|
|
rb_define_const(rb_mProcess, "RLIM_INFINITY", RLIM2NUM(RLIM_INFINITY));
|
|
#endif
|
|
#ifdef RLIM_SAVED_MAX
|
|
rb_define_const(rb_mProcess, "RLIM_SAVED_MAX", RLIM2NUM(RLIM_SAVED_MAX));
|
|
#endif
|
|
#ifdef RLIM_SAVED_CUR
|
|
rb_define_const(rb_mProcess, "RLIM_SAVED_CUR", RLIM2NUM(RLIM_SAVED_CUR));
|
|
#endif
|
|
#ifdef RLIMIT_CORE
|
|
rb_define_const(rb_mProcess, "RLIMIT_CORE", INT2FIX(RLIMIT_CORE));
|
|
#endif
|
|
#ifdef RLIMIT_CPU
|
|
rb_define_const(rb_mProcess, "RLIMIT_CPU", INT2FIX(RLIMIT_CPU));
|
|
#endif
|
|
#ifdef RLIMIT_DATA
|
|
rb_define_const(rb_mProcess, "RLIMIT_DATA", INT2FIX(RLIMIT_DATA));
|
|
#endif
|
|
#ifdef RLIMIT_FSIZE
|
|
rb_define_const(rb_mProcess, "RLIMIT_FSIZE", INT2FIX(RLIMIT_FSIZE));
|
|
#endif
|
|
#ifdef RLIMIT_NOFILE
|
|
rb_define_const(rb_mProcess, "RLIMIT_NOFILE", INT2FIX(RLIMIT_NOFILE));
|
|
#endif
|
|
#ifdef RLIMIT_STACK
|
|
rb_define_const(rb_mProcess, "RLIMIT_STACK", INT2FIX(RLIMIT_STACK));
|
|
#endif
|
|
#ifdef RLIMIT_AS
|
|
rb_define_const(rb_mProcess, "RLIMIT_AS", INT2FIX(RLIMIT_AS));
|
|
#endif
|
|
#ifdef RLIMIT_MEMLOCK
|
|
rb_define_const(rb_mProcess, "RLIMIT_MEMLOCK", INT2FIX(RLIMIT_MEMLOCK));
|
|
#endif
|
|
#ifdef RLIMIT_NPROC
|
|
rb_define_const(rb_mProcess, "RLIMIT_NPROC", INT2FIX(RLIMIT_NPROC));
|
|
#endif
|
|
#ifdef RLIMIT_RSS
|
|
rb_define_const(rb_mProcess, "RLIMIT_RSS", INT2FIX(RLIMIT_RSS));
|
|
#endif
|
|
#ifdef RLIMIT_SBSIZE
|
|
rb_define_const(rb_mProcess, "RLIMIT_SBSIZE", INT2FIX(RLIMIT_SBSIZE));
|
|
#endif
|
|
#endif
|
|
|
|
rb_define_module_function(rb_mProcess, "uid", proc_getuid, 0);
|
|
rb_define_module_function(rb_mProcess, "uid=", proc_setuid, 1);
|
|
rb_define_module_function(rb_mProcess, "gid", proc_getgid, 0);
|
|
rb_define_module_function(rb_mProcess, "gid=", proc_setgid, 1);
|
|
rb_define_module_function(rb_mProcess, "euid", proc_geteuid, 0);
|
|
rb_define_module_function(rb_mProcess, "euid=", proc_seteuid, 1);
|
|
rb_define_module_function(rb_mProcess, "egid", proc_getegid, 0);
|
|
rb_define_module_function(rb_mProcess, "egid=", proc_setegid, 1);
|
|
rb_define_module_function(rb_mProcess, "initgroups", proc_initgroups, 2);
|
|
rb_define_module_function(rb_mProcess, "groups", proc_getgroups, 0);
|
|
rb_define_module_function(rb_mProcess, "groups=", proc_setgroups, 1);
|
|
rb_define_module_function(rb_mProcess, "maxgroups", proc_getmaxgroups, 0);
|
|
rb_define_module_function(rb_mProcess, "maxgroups=", proc_setmaxgroups, 1);
|
|
|
|
rb_define_module_function(rb_mProcess, "times", rb_proc_times, 0);
|
|
|
|
#if defined(HAVE_TIMES) || defined(_WIN32)
|
|
S_Tms = rb_struct_define("Tms", "utime", "stime", "cutime", "cstime", NULL);
|
|
#endif
|
|
|
|
SAVED_USER_ID = geteuid();
|
|
SAVED_GROUP_ID = getegid();
|
|
|
|
rb_mProcUID = rb_define_module_under(rb_mProcess, "UID");
|
|
rb_mProcGID = rb_define_module_under(rb_mProcess, "GID");
|
|
|
|
rb_define_module_function(rb_mProcUID, "rid", proc_getuid, 0);
|
|
rb_define_module_function(rb_mProcGID, "rid", proc_getgid, 0);
|
|
rb_define_module_function(rb_mProcUID, "eid", proc_geteuid, 0);
|
|
rb_define_module_function(rb_mProcGID, "eid", proc_getegid, 0);
|
|
rb_define_module_function(rb_mProcUID, "change_privilege", p_uid_change_privilege, 1);
|
|
rb_define_module_function(rb_mProcGID, "change_privilege", p_gid_change_privilege, 1);
|
|
rb_define_module_function(rb_mProcUID, "grant_privilege", p_uid_grant_privilege, 1);
|
|
rb_define_module_function(rb_mProcGID, "grant_privilege", p_gid_grant_privilege, 1);
|
|
rb_define_alias(rb_singleton_class(rb_mProcUID), "eid=", "grant_privilege");
|
|
rb_define_alias(rb_singleton_class(rb_mProcGID), "eid=", "grant_privilege");
|
|
rb_define_module_function(rb_mProcUID, "re_exchange", p_uid_exchange, 0);
|
|
rb_define_module_function(rb_mProcGID, "re_exchange", p_gid_exchange, 0);
|
|
rb_define_module_function(rb_mProcUID, "re_exchangeable?", p_uid_exchangeable, 0);
|
|
rb_define_module_function(rb_mProcGID, "re_exchangeable?", p_gid_exchangeable, 0);
|
|
rb_define_module_function(rb_mProcUID, "sid_available?", p_uid_have_saved_id, 0);
|
|
rb_define_module_function(rb_mProcGID, "sid_available?", p_gid_have_saved_id, 0);
|
|
rb_define_module_function(rb_mProcUID, "switch", p_uid_switch, 0);
|
|
rb_define_module_function(rb_mProcGID, "switch", p_gid_switch, 0);
|
|
|
|
rb_mProcID_Syscall = rb_define_module_under(rb_mProcess, "Sys");
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "getuid", proc_getuid, 0);
|
|
rb_define_module_function(rb_mProcID_Syscall, "geteuid", proc_geteuid, 0);
|
|
rb_define_module_function(rb_mProcID_Syscall, "getgid", proc_getgid, 0);
|
|
rb_define_module_function(rb_mProcID_Syscall, "getegid", proc_getegid, 0);
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "setuid", p_sys_setuid, 1);
|
|
rb_define_module_function(rb_mProcID_Syscall, "setgid", p_sys_setgid, 1);
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "setruid", p_sys_setruid, 1);
|
|
rb_define_module_function(rb_mProcID_Syscall, "setrgid", p_sys_setrgid, 1);
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "seteuid", p_sys_seteuid, 1);
|
|
rb_define_module_function(rb_mProcID_Syscall, "setegid", p_sys_setegid, 1);
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "setreuid", p_sys_setreuid, 2);
|
|
rb_define_module_function(rb_mProcID_Syscall, "setregid", p_sys_setregid, 2);
|
|
|
|
rb_define_module_function(rb_mProcID_Syscall, "setresuid", p_sys_setresuid, 3);
|
|
rb_define_module_function(rb_mProcID_Syscall, "setresgid", p_sys_setresgid, 3);
|
|
rb_define_module_function(rb_mProcID_Syscall, "issetugid", p_sys_issetugid, 0);
|
|
}
|