Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

2727 lines (2359 sloc) 53.746 kB
/**********************************************************************
file.c -
$Author: matz $
$Date: 2002/09/06 08:59:38 $
created at: Mon Nov 15 12:24:34 JST 1993
Copyright (C) 1993-2002 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#ifdef NT
#include "missing/file.h"
#endif
#include "ruby.h"
#include "rubyio.h"
#include "rubysig.h"
#include "util.h"
#include "dln.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#else
int flock _((int, int));
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#else
# define MAXPATHLEN 1024
#endif
#include <time.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#else
#ifndef NT
struct timeval {
long tv_sec; /* seconds */
long tv_usec; /* and microseconds */
};
#endif /* NT */
#endif
VALUE rb_time_new _((time_t, time_t));
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifndef HAVE_STRING_H
char *strrchr _((const char*,const char));
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_MKDEV_H
#include <sys/mkdev.h>
#endif
#ifndef HAVE_LSTAT
#define lstat(path,st) stat(path,st)
#endif
VALUE rb_cFile;
VALUE rb_mFileTest;
static VALUE rb_cStat;
static long
apply2files(func, vargs, arg)
void (*func)();
VALUE vargs;
void *arg;
{
long i;
VALUE path;
struct RArray *args = RARRAY(vargs);
for (i=0; i<args->len; i++) {
path = args->ptr[i];
SafeStringValue(path);
(*func)(RSTRING(path)->ptr, arg);
}
return args->len;
}
static VALUE
rb_file_path(obj)
VALUE obj;
{
OpenFile *fptr;
GetOpenFile(obj, fptr);
if (!fptr->path) return Qnil;
return rb_str_new2(fptr->path);
}
#ifdef NT
#include "missing/file.h"
#endif
static VALUE
stat_new_0(klass, st)
VALUE klass;
struct stat *st;
{
struct stat *nst = 0;
if (st) {
nst = ALLOC(struct stat);
*nst = *st;
}
return Data_Wrap_Struct(klass, NULL, free, nst);
}
static VALUE
stat_new(st)
struct stat *st;
{
return stat_new_0(rb_cStat, st);
}
static struct stat*
get_stat(self)
VALUE self;
{
struct stat* st;
Data_Get_Struct(self, struct stat, st);
if (!st) rb_raise(rb_eTypeError, "uninitialized File::Stat");
return st;
}
static VALUE
rb_stat_cmp(self, other)
VALUE self, other;
{
if (rb_obj_is_kind_of(other, rb_obj_class(self))) {
time_t t1 = get_stat(self)->st_mtime;
time_t t2 = get_stat(other)->st_mtime;
if (t1 == t2)
return INT2FIX(0);
else if (t1 < t2)
return INT2FIX(-1);
else
return INT2FIX(1);
}
rb_raise(rb_eTypeError, "operand is not File::Stat");
}
static VALUE
rb_stat_dev(self)
VALUE self;
{
return INT2NUM(get_stat(self)->st_dev);
}
static VALUE
rb_stat_ino(self)
VALUE self;
{
return ULONG2NUM(get_stat(self)->st_ino);
}
static VALUE
rb_stat_mode(self)
VALUE self;
{
#ifdef __BORLANDC__
return UINT2NUM((unsigned short)(get_stat(self)->st_mode));
#else
return UINT2NUM(get_stat(self)->st_mode);
#endif
}
static VALUE
rb_stat_nlink(self)
VALUE self;
{
return UINT2NUM(get_stat(self)->st_nlink);
}
static VALUE
rb_stat_uid(self)
VALUE self;
{
return UINT2NUM(get_stat(self)->st_uid);
}
static VALUE
rb_stat_gid(self)
VALUE self;
{
return UINT2NUM(get_stat(self)->st_gid);
}
static VALUE
rb_stat_rdev(self)
VALUE self;
{
#ifdef HAVE_ST_RDEV
return ULONG2NUM(get_stat(self)->st_rdev);
#else
return Qnil;
#endif
}
static VALUE
rb_stat_rdev_major(self)
VALUE self;
{
#if defined(HAVE_ST_RDEV) && defined(major)
long rdev = get_stat(self)->st_rdev;
return ULONG2NUM(major(rdev));
#else
return Qnil;
#endif
}
static VALUE
rb_stat_rdev_minor(self)
VALUE self;
{
#if defined(HAVE_ST_RDEV) && defined(minor)
long rdev = get_stat(self)->st_rdev;
return ULONG2NUM(minor(rdev));
#else
return Qnil;
#endif
}
static VALUE
rb_stat_size(self)
VALUE self;
{
return OFFT2NUM(get_stat(self)->st_size);
}
static VALUE
rb_stat_blksize(self)
VALUE self;
{
#ifdef HAVE_ST_BLKSIZE
return ULONG2NUM(get_stat(self)->st_blksize);
#else
return Qnil;
#endif
}
static VALUE
rb_stat_blocks(self)
VALUE self;
{
#ifdef HAVE_ST_BLOCKS
return ULONG2NUM(get_stat(self)->st_blocks);
#else
return Qnil;
#endif
}
static VALUE
rb_stat_atime(self)
VALUE self;
{
return rb_time_new(get_stat(self)->st_atime, 0);
}
static VALUE
rb_stat_mtime(self)
VALUE self;
{
return rb_time_new(get_stat(self)->st_mtime, 0);
}
static VALUE
rb_stat_ctime(self)
VALUE self;
{
return rb_time_new(get_stat(self)->st_ctime, 0);
}
static VALUE
rb_stat_inspect(self)
VALUE self;
{
VALUE str;
int i;
static struct {
char *name;
VALUE (*func)();
} member[] = {
{"dev", rb_stat_dev},
{"ino", rb_stat_ino},
{"mode", rb_stat_mode},
{"nlink", rb_stat_nlink},
{"uid", rb_stat_uid},
{"gid", rb_stat_gid},
{"rdev", rb_stat_rdev},
{"size", rb_stat_size},
{"blksize", rb_stat_blksize},
{"blocks", rb_stat_blocks},
{"atime", rb_stat_atime},
{"mtime", rb_stat_mtime},
{"ctime", rb_stat_ctime},
};
str = rb_str_buf_new2("#<");
rb_str_buf_cat2(str, rb_class2name(CLASS_OF(self)));
rb_str_buf_cat2(str, " ");
for (i = 0; i < sizeof(member)/sizeof(member[0]); i++) {
VALUE v;
if (i > 0) {
rb_str_buf_cat2(str, ", ");
}
rb_str_buf_cat2(str, member[i].name);
rb_str_buf_cat2(str, "=");
v = (*member[i].func)(self);
if (i == 2) { /* mode */
char buf[32];
sprintf(buf, "0%lo", NUM2INT(v));
rb_str_buf_cat2(str, buf);
}
else if (i == 0 || i == 6) { /* dev/rdev */
char buf[32];
sprintf(buf, "0x%lx", NUM2ULONG(v));
rb_str_buf_cat2(str, buf);
}
else {
rb_str_append(str, rb_inspect(v));
}
}
rb_str_buf_cat2(str, ">");
OBJ_INFECT(str, self);
return str;
}
static int
rb_stat(file, st)
VALUE file;
struct stat *st;
{
if (TYPE(file) == T_FILE) {
OpenFile *fptr;
rb_secure(2);
GetOpenFile(file, fptr);
return fstat(fileno(fptr->f), st);
}
SafeStringValue(file);
#if defined DJGPP
if (RSTRING(file)->len == 0) return -1;
#endif
return stat(RSTRING(file)->ptr, st);
}
static VALUE
rb_file_s_stat(klass, fname)
VALUE klass, fname;
{
struct stat st;
SafeStringValue(fname);
if (stat(RSTRING(fname)->ptr, &st) == -1) {
rb_sys_fail(RSTRING(fname)->ptr);
}
return stat_new(&st);
}
static VALUE
rb_io_stat(obj)
VALUE obj;
{
OpenFile *fptr;
struct stat st;
GetOpenFile(obj, fptr);
if (fstat(fileno(fptr->f), &st) == -1) {
rb_sys_fail(fptr->path);
}
return stat_new(&st);
}
static VALUE
rb_file_s_lstat(klass, fname)
VALUE klass, fname;
{
#ifdef HAVE_LSTAT
struct stat st;
SafeStringValue(fname);
if (lstat(RSTRING(fname)->ptr, &st) == -1) {
rb_sys_fail(RSTRING(fname)->ptr);
}
return stat_new(&st);
#else
return rb_file_s_stat(klass, fname);
#endif
}
static VALUE
rb_file_lstat(obj)
VALUE obj;
{
#ifdef HAVE_LSTAT
OpenFile *fptr;
struct stat st;
rb_secure(2);
GetOpenFile(obj, fptr);
if (!fptr->path) return Qnil;
if (lstat(fptr->path, &st) == -1) {
rb_sys_fail(fptr->path);
}
return stat_new(&st);
#else
return rb_io_stat(obj);
#endif
}
static int
group_member(gid)
GETGROUPS_T gid;
{
#if !defined(NT)
if (getgid() == gid)
return Qtrue;
# ifdef HAVE_GETGROUPS
# ifndef NGROUPS
# ifdef NGROUPS_MAX
# define NGROUPS NGROUPS_MAX
# else
# define NGROUPS 32
# endif
# endif
{
GETGROUPS_T gary[NGROUPS];
int anum;
anum = getgroups(NGROUPS, gary);
while (--anum >= 0)
if (gary[anum] == gid)
return Qtrue;
}
# endif
#endif
return Qfalse;
}
#ifndef S_IXUGO
# define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
#endif
int
eaccess(path, mode)
const char *path;
int mode;
{
#ifdef S_IXGRP
struct stat st;
int euid;
if (stat(path, &st) < 0) return -1;
euid = geteuid();
if (euid == 0) {
/* Root can read or write any file. */
if (!(mode & X_OK))
return 0;
/* Root can execute any file that has any one of the execute
bits set. */
if (st.st_mode & S_IXUGO)
return 0;
return -1;
}
if (st.st_uid == euid) /* owner */
mode <<= 6;
else if (getegid() == st.st_gid || group_member(st.st_gid))
mode <<= 3;
if ((st.st_mode & mode) == mode) return 0;
return -1;
#else
return access(path, mode);
#endif
}
static VALUE
test_d(obj, fname)
VALUE obj, fname;
{
#ifndef S_ISDIR
# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
#endif
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISDIR(st.st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
test_p(obj, fname)
VALUE obj, fname;
{
#ifdef S_IFIFO
# ifndef S_ISFIFO
# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
# endif
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISFIFO(st.st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
test_l(obj, fname)
VALUE obj, fname;
{
#ifndef S_ISLNK
# ifdef _S_ISLNK
# define S_ISLNK(m) _S_ISLNK(m)
# elif defined __BORLANDC__
# ifdef _S_IFLNK
# define S_ISLNK(m) (((unsigned short)(m) & S_IFMT) == _S_IFLNK)
# else
# ifdef S_IFLNK
# define S_ISLNK(m) (((unsigned short)(m) & S_IFMT) == S_IFLNK)
# endif
# endif
# else
# ifdef _S_IFLNK
# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
# else
# ifdef S_IFLNK
# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
# endif
# endif
# endif
#endif
#ifdef S_ISLNK
struct stat st;
SafeStringValue(fname);
if (lstat(RSTRING(fname)->ptr, &st) < 0) return Qfalse;
if (S_ISLNK(st.st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
test_S(obj, fname)
VALUE obj, fname;
{
#ifndef S_ISSOCK
# ifdef _S_ISSOCK
# define S_ISSOCK(m) _S_ISSOCK(m)
# elif defined __BORLANDC__
# ifdef _S_IFSOCK
# define S_ISSOCK(m) (((unsigned short)(m) & S_IFMT) == _S_IFSOCK)
# else
# ifdef S_IFSOCK
# define S_ISSOCK(m) (((unsigned short)(m) & S_IFMT) == S_IFSOCK)
# endif
# endif
# else
# ifdef _S_IFSOCK
# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
# else
# ifdef S_IFSOCK
# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
# endif
# endif
# endif
#endif
#ifdef S_ISSOCK
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISSOCK(st.st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
test_b(obj, fname)
VALUE obj, fname;
{
#ifndef S_ISBLK
# ifdef S_IFBLK
# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
# else
# define S_ISBLK(m) (0) /* anytime false */
# endif
#endif
#ifdef S_ISBLK
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISBLK(st.st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
test_c(obj, fname)
VALUE obj, fname;
{
#ifndef S_ISCHR
# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
#endif
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISCHR(st.st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
test_e(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_r(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (eaccess(RSTRING(fname)->ptr, R_OK) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_R(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (access(RSTRING(fname)->ptr, R_OK) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_w(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (eaccess(RSTRING(fname)->ptr, W_OK) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_W(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (access(RSTRING(fname)->ptr, W_OK) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_x(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (eaccess(RSTRING(fname)->ptr, X_OK) < 0) return Qfalse;
return Qtrue;
}
static VALUE
test_X(obj, fname)
VALUE obj, fname;
{
SafeStringValue(fname);
if (access(RSTRING(fname)->ptr, X_OK) < 0) return Qfalse;
return Qtrue;
}
#ifndef S_ISREG
# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
#endif
static VALUE
test_f(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISREG(st.st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
test_z(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (st.st_size == 0) return Qtrue;
return Qfalse;
}
static VALUE
test_s(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qnil;
if (st.st_size == 0) return Qnil;
return OFFT2NUM(st.st_size);
}
static VALUE
test_owned(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (st.st_uid == geteuid()) return Qtrue;
return Qfalse;
}
static VALUE
test_rowned(obj, fname)
VALUE obj, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (st.st_uid == getuid()) return Qtrue;
return Qfalse;
}
static VALUE
test_grpowned(obj, fname)
VALUE obj, fname;
{
#ifndef NT
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (st.st_gid == getegid()) return Qtrue;
#endif
return Qfalse;
}
#if defined(S_ISUID) || defined(S_ISGID) || defined(S_ISVTX)
static VALUE
check3rdbyte(fname, mode)
VALUE fname;
int mode;
{
struct stat st;
SafeStringValue(fname);
if (stat(RSTRING(fname)->ptr, &st) < 0) return Qfalse;
if (st.st_mode & mode) return Qtrue;
return Qfalse;
}
#endif
static VALUE
test_suid(obj, fname)
VALUE obj, fname;
{
#ifdef S_ISUID
return check3rdbyte(fname, S_ISUID);
#else
return Qfalse;
#endif
}
static VALUE
test_sgid(obj, fname)
VALUE obj, fname;
{
#ifdef S_ISGID
return check3rdbyte(fname, S_ISGID);
#else
return Qfalse;
#endif
}
static VALUE
test_sticky(obj, fname)
VALUE obj, fname;
{
#ifdef S_ISVTX
return check3rdbyte(fname, S_ISVTX);
#else
return Qnil;
#endif
}
static VALUE
rb_file_s_size(klass, fname)
VALUE klass, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0)
rb_sys_fail(RSTRING(fname)->ptr);
return OFFT2NUM(st.st_size);
}
static VALUE
rb_file_ftype(st)
struct stat *st;
{
char *t;
if (S_ISREG(st->st_mode)) {
t = "file";
}
else if (S_ISDIR(st->st_mode)) {
t = "directory";
}
else if (S_ISCHR(st->st_mode)) {
t = "characterSpecial";
}
#ifdef S_ISBLK
else if (S_ISBLK(st->st_mode)) {
t = "blockSpecial";
}
#endif
#ifdef S_ISFIFO
else if (S_ISFIFO(st->st_mode)) {
t = "fifo";
}
#endif
#ifdef S_ISLNK
else if (S_ISLNK(st->st_mode)) {
t = "link";
}
#endif
#ifdef S_ISSOCK
else if (S_ISSOCK(st->st_mode)) {
t = "socket";
}
#endif
else {
t = "unknown";
}
return rb_str_new2(t);
}
static VALUE
rb_file_s_ftype(klass, fname)
VALUE klass, fname;
{
struct stat st;
SafeStringValue(fname);
if (lstat(RSTRING(fname)->ptr, &st) == -1) {
rb_sys_fail(RSTRING(fname)->ptr);
}
return rb_file_ftype(&st);
}
static VALUE
rb_file_s_atime(klass, fname)
VALUE klass, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0)
rb_sys_fail(RSTRING(fname)->ptr);
return rb_time_new(st.st_atime, 0);
}
static VALUE
rb_file_atime(obj)
VALUE obj;
{
OpenFile *fptr;
struct stat st;
GetOpenFile(obj, fptr);
if (fstat(fileno(fptr->f), &st) == -1) {
rb_sys_fail(fptr->path);
}
return rb_time_new(st.st_atime, 0);
}
static VALUE
rb_file_s_mtime(klass, fname)
VALUE klass, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0)
rb_sys_fail(RSTRING(fname)->ptr);
return rb_time_new(st.st_mtime, 0);
}
static VALUE
rb_file_mtime(obj)
VALUE obj;
{
OpenFile *fptr;
struct stat st;
GetOpenFile(obj, fptr);
if (fstat(fileno(fptr->f), &st) == -1) {
rb_sys_fail(fptr->path);
}
return rb_time_new(st.st_mtime, 0);
}
static VALUE
rb_file_s_ctime(klass, fname)
VALUE klass, fname;
{
struct stat st;
if (rb_stat(fname, &st) < 0)
rb_sys_fail(RSTRING(fname)->ptr);
return rb_time_new(st.st_ctime, 0);
}
static VALUE
rb_file_ctime(obj)
VALUE obj;
{
OpenFile *fptr;
struct stat st;
GetOpenFile(obj, fptr);
if (fstat(fileno(fptr->f), &st) == -1) {
rb_sys_fail(fptr->path);
}
return rb_time_new(st.st_ctime, 0);
}
static void
chmod_internal(path, mode)
const char *path;
int mode;
{
if (chmod(path, mode) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_chmod(argc, argv)
int argc;
VALUE *argv;
{
VALUE vmode;
VALUE rest;
int mode;
long n;
rb_secure(2);
rb_scan_args(argc, argv, "1*", &vmode, &rest);
mode = NUM2INT(vmode);
n = apply2files(chmod_internal, rest, mode);
return LONG2FIX(n);
}
static VALUE
rb_file_chmod(obj, vmode)
VALUE obj, vmode;
{
OpenFile *fptr;
int mode;
rb_secure(2);
mode = NUM2INT(vmode);
GetOpenFile(obj, fptr);
#ifdef HAVE_FCHMOD
if (fchmod(fileno(fptr->f), mode) == -1)
rb_sys_fail(fptr->path);
#else
if (!fptr->path) return Qnil;
if (chmod(fptr->path, mode) == -1)
rb_sys_fail(fptr->path);
#endif
return INT2FIX(0);
}
#if defined(HAVE_LCHMOD)
static void
lchmod_internal(path, mode)
const char *path;
int mode;
{
if (lchmod(path, mode) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_lchmod(argc, argv)
int argc;
VALUE *argv;
{
VALUE vmode;
VALUE rest;
int mode;
long n;
rb_secure(2);
rb_scan_args(argc, argv, "1*", &vmode, &rest);
mode = NUM2INT(vmode);
n = apply2files(lchmod_internal, rest, mode);
return LONG2FIX(n);
}
#else
static VALUE
rb_file_s_lchmod(argc, argv)
int argc;
VALUE *argv;
{
rb_notimplement();
}
#endif
struct chown_args {
int owner, group;
};
static void
chown_internal(path, args)
const char *path;
struct chown_args *args;
{
if (chown(path, args->owner, args->group) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_chown(argc, argv)
int argc;
VALUE *argv;
{
VALUE o, g, rest;
struct chown_args arg;
long n;
rb_secure(2);
rb_scan_args(argc, argv, "2*", &o, &g, &rest);
if (NIL_P(o)) {
arg.owner = -1;
}
else {
arg.owner = NUM2INT(o);
}
if (NIL_P(g)) {
arg.group = -1;
}
else {
arg.group = NUM2INT(g);
}
n = apply2files(chown_internal, rest, &arg);
return LONG2FIX(n);
}
static VALUE
rb_file_chown(obj, owner, group)
VALUE obj, owner, group;
{
OpenFile *fptr;
rb_secure(2);
GetOpenFile(obj, fptr);
#if defined(DJGPP) || defined(__CYGWIN32__) || defined(NT) || defined(__EMX__)
if (!fptr->path) return Qnil;
if (chown(fptr->path, NUM2INT(owner), NUM2INT(group)) == -1)
rb_sys_fail(fptr->path);
#else
if (fchown(fileno(fptr->f), NUM2INT(owner), NUM2INT(group)) == -1)
rb_sys_fail(fptr->path);
#endif
return INT2FIX(0);
}
#if defined(HAVE_LCHOWN) && !defined(__CHECKER__)
static void
lchown_internal(path, args)
const char *path;
struct chown_args *args;
{
if (lchown(path, args->owner, args->group) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_lchown(argc, argv)
int argc;
VALUE *argv;
{
VALUE o, g, rest;
struct chown_args arg;
long n;
rb_secure(2);
rb_scan_args(argc, argv, "2*", &o, &g, &rest);
if (NIL_P(o)) {
arg.owner = -1;
}
else {
arg.owner = NUM2INT(o);
}
if (NIL_P(g)) {
arg.group = -1;
}
else {
arg.group = NUM2INT(g);
}
n = apply2files(lchown_internal, rest, &arg);
return LONG2FIX(n);
}
#else
static VALUE
rb_file_s_lchown(argc, argv)
int argc;
VALUE *argv;
{
rb_notimplement();
}
#endif
struct timeval rb_time_timeval();
#if defined(HAVE_UTIMES) && !defined(__CHECKER__)
static void
utime_internal(path, tvp)
char *path;
struct timeval tvp[];
{
if (utimes(path, tvp) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_utime(argc, argv)
int argc;
VALUE *argv;
{
VALUE atime, mtime, rest;
struct timeval tvp[2];
long n;
rb_scan_args(argc, argv, "2*", &atime, &mtime, &rest);
tvp[0] = rb_time_timeval(atime);
tvp[1] = rb_time_timeval(mtime);
n = apply2files(utime_internal, rest, tvp);
return LONG2FIX(n);
}
#else
#ifndef HAVE_UTIME_H
# ifdef NT
# if defined(__BORLANDC__)
# include <utime.h>
# else
# include <sys/utime.h>
# endif
# if defined(_MSC_VER) || defined __MINGW32__
# define utimbuf _utimbuf
# endif
# else
struct utimbuf {
long actime;
long modtime;
};
# endif
#endif
static void
utime_internal(path, utp)
const char *path;
struct utimbuf *utp;
{
if (utime(path, utp) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_utime(argc, argv)
int argc;
VALUE *argv;
{
VALUE atime, mtime, rest;
long n;
struct timeval tv;
struct utimbuf utbuf;
rb_scan_args(argc, argv, "2*", &atime, &mtime, &rest);
tv = rb_time_timeval(atime);
utbuf.actime = tv.tv_sec;
tv = rb_time_timeval(mtime);
utbuf.modtime = tv.tv_sec;
n = apply2files(utime_internal, rest, &utbuf);
return LONG2FIX(n);
}
#endif
static VALUE
rb_file_s_link(klass, from, to)
VALUE klass, from, to;
{
SafeStringValue(from);
SafeStringValue(to);
if (link(RSTRING(from)->ptr, RSTRING(to)->ptr) < 0)
rb_sys_fail(RSTRING(from)->ptr);
return INT2FIX(0);
}
static VALUE
rb_file_s_symlink(klass, from, to)
VALUE klass, from, to;
{
#ifdef HAVE_SYMLINK
SafeStringValue(from);
SafeStringValue(to);
if (symlink(RSTRING(from)->ptr, RSTRING(to)->ptr) < 0)
rb_sys_fail(RSTRING(from)->ptr);
return INT2FIX(0);
#else
rb_notimplement();
return Qnil; /* not reached */
#endif
}
static VALUE
rb_file_s_readlink(klass, path)
VALUE klass, path;
{
#ifdef HAVE_READLINK
char *buf;
int size = 100;
int rv;
VALUE v;
SafeStringValue(path);
buf = xmalloc(size);
if ((rv = readlink(RSTRING(path)->ptr, buf, size)) == size) {
size *= 2;
buf = xrealloc(buf, size);
}
if (rv < 0) {
free(buf);
rb_sys_fail(RSTRING(path)->ptr);
}
v = rb_tainted_str_new(buf, rv);
free(buf);
return v;
#else
rb_notimplement();
return Qnil; /* not reached */
#endif
}
static void
unlink_internal(path)
const char *path;
{
if (unlink(path) < 0)
rb_sys_fail(path);
}
static VALUE
rb_file_s_unlink(klass, args)
VALUE klass, args;
{
long n;
rb_secure(2);
n = apply2files(unlink_internal, args, 0);
return LONG2FIX(n);
}
static VALUE
rb_file_s_rename(klass, from, to)
VALUE klass, from, to;
{
SafeStringValue(from);
SafeStringValue(to);
if (rename(RSTRING(from)->ptr, RSTRING(to)->ptr) < 0) {
#if defined __CYGWIN__
extern unsigned long __attribute__((stdcall)) GetLastError();
errno = GetLastError(); /* This is a Cygwin bug */
#endif
rb_sys_fail(RSTRING(from)->ptr);
}
return INT2FIX(0);
}
static VALUE
rb_file_s_umask(argc, argv)
int argc;
VALUE *argv;
{
int omask = 0;
rb_secure(2);
if (argc == 0) {
omask = umask(0);
umask(omask);
}
else if (argc == 1) {
omask = umask(NUM2INT(argv[0]));
}
else {
rb_raise(rb_eArgError, "wrong number of argument");
}
return INT2FIX(omask);
}
#if defined DOSISH
#define isdirsep(x) ((x) == '/' || (x) == '\\')
#else
#define isdirsep(x) ((x) == '/')
#endif
#ifndef CharNext /* defined as CharNext[AW] on Windows. */
# if defined(DJGPP)
# define CharNext(p) ((p) + mblen(p, MB_CUR_MAX))
# else
# define CharNext(p) ((p) + 1)
# endif
#endif
static char *
strrdirsep(path)
char *path;
{
char *last = NULL;
while (*path) {
if (isdirsep(*path)) {
last = path++;
}
else {
path = CharNext(path);
}
}
return last;
}
#define BUFCHECK(cond) while (cond) {\
long bdiff = p - buf;\
buflen *= 2;\
rb_str_resize(result, buflen);\
buf = RSTRING(result)->ptr;\
p = buf + bdiff;\
pend = buf + buflen;\
}
VALUE
rb_file_s_expand_path(argc, argv)
int argc;
VALUE *argv;
{
VALUE fname, dname, result;
char *s, *buf, *b, *p, *pend;
long buflen = MAXPATHLEN;
int tainted;
rb_scan_args(argc, argv, "11", &fname, &dname);
result = rb_str_new(0, buflen + 2);
s = StringValuePtr(fname);
p = buf = RSTRING(result)->ptr;
pend = p + buflen;
tainted = OBJ_TAINTED(fname);
if (s[0] == '~') {
if (isdirsep(s[1]) || s[1] == '\0') {
char *dir = getenv("HOME");
if (!dir) {
rb_raise(rb_eArgError, "couldn't find HOME environment -- expanding `%s'", s);
}
BUFCHECK (strlen(dir) > buflen);
strcpy(buf, dir);
p = buf + strlen(dir);
s++;
tainted = 1;
}
else {
#ifdef HAVE_PWD_H
struct passwd *pwPtr;
s++;
#endif
b = s;
while (*s && !isdirsep(*s)) {
s = CharNext(s);
}
BUFCHECK (p + (s-b) >= pend);
memcpy(p, b, s-b);
p += s-b;
*p = '\0';
#ifdef HAVE_PWD_H
pwPtr = getpwnam(buf);
if (!pwPtr) {
endpwent();
rb_raise(rb_eArgError, "user %s doesn't exist", buf);
}
BUFCHECK (strlen(pwPtr->pw_dir) > buflen);
strcpy(buf, pwPtr->pw_dir);
p = buf + strlen(pwPtr->pw_dir);
endpwent();
#endif
}
}
#if defined DOSISH || defined __CYGWIN__
/* skip drive letter */
else if (ISALPHA(s[0]) && s[1] == ':' && isdirsep(s[2])) {
b = s;
while (*s && !isdirsep(*s)) {
s = CharNext(s);
}
BUFCHECK (p + (s-b) >= pend);
memcpy(p, b, s-b);
p += s-b;
}
#endif
else if (!isdirsep(*s)) {
if (!NIL_P(dname)) {
dname = rb_file_s_expand_path(1, &dname);
if (OBJ_TAINTED(dname)) tainted = 1;
BUFCHECK (RSTRING(dname)->len > buflen);
memcpy(buf, RSTRING(dname)->ptr, RSTRING(dname)->len);
p += RSTRING(dname)->len;
}
else {
char *dir = my_getcwd();
tainted = 1;
BUFCHECK (strlen(dir) > buflen);
strcpy(buf, dir);
free(dir);
p = &buf[strlen(buf)];
}
while (p > buf && *(p - 1) == '/') p--;
}
else {
while (*s && isdirsep(*s)) {
*p++ = '/';
BUFCHECK (p >= pend);
s++;
}
if (p > buf && *s) p--;
}
*p = '/';
b = s;
while (*s) {
switch (*s) {
case '.':
if (b == s++) { /* beginning of path element */
switch (*s) {
case '\0':
b = s;
break;
case '.':
if (*(s+1) == '\0' || isdirsep(*(s+1))) {
/* We must go back to the parent */
*p = '\0';
if (!(b = strrdirsep(buf))) {
*p = '/';
}
else {
p = b;
}
b = ++s;
}
break;
case '/':
#if defined DOSISH
case '\\':
#endif
b = ++s;
break;
default:
/* ordinary path element, beginning don't move */
break;
}
}
break;
case '/':
#if defined DOSISH
case '\\':
#endif
if (s > b) {
BUFCHECK (p + (s-b+1) >= pend);
memcpy(++p, b, s-b);
p += s-b;
*p = '/';
}
b = ++s;
break;
default:
s = CharNext(s);
break;
}
}
if (s > b) {
BUFCHECK (p + (s-b) >= pend);
memcpy(++p, b, s-b);
p += s-b;
}
#if defined DOSISH || defined __CYGWIN__
else if (ISALPHA(buf[0]) && (buf[1] == ':') && isdirsep(buf[2])) {
/* root directory needs a trailing backslash,
otherwise it mean the current directory of the drive */
if (p == (buf+2)) p++;
}
else if (isdirsep(buf[0]) && isdirsep(buf[1])) {
if (p == (buf+1)) p++;
}
#endif
if (tainted) OBJ_TAINT(result);
RSTRING(result)->len = p - buf;
*p = '\0';
return result;
}
static int
rmext(p, e)
const char *p, *e;
{
int l1, l2;
if (!e) return 0;
l1 = strlen(p);
l2 = strlen(e);
if (l2 == 2 && e[1] == '*') {
e = strrchr(p, *e);
if (!e) return 0;
return e - p;
}
if (l1 < l2) return l1;
if (strcmp(p+l1-l2, e) == 0) {
return l1-l2;
}
return 0;
}
static VALUE
rb_file_s_basename(argc, argv)
int argc;
VALUE *argv;
{
VALUE fname, fext, basename;
char *name, *p, *ext = NULL;
int f;
if (rb_scan_args(argc, argv, "11", &fname, &fext) == 2) {
ext = StringValuePtr(fext);
}
name = StringValuePtr(fname);
p = strrdirsep(name);
if (!p) {
if (NIL_P(fext) || !(f = rmext(name, ext)))
return fname;
basename = rb_str_new(name, f);
}
else {
p++; /* skip last / */
if (NIL_P(fext) || !(f = rmext(p, ext))) {
basename = rb_str_new2(p);
}
else {
basename = rb_str_new(p, f);
}
}
OBJ_INFECT(basename, fname);
return basename;
}
static VALUE
rb_file_s_dirname(klass, fname)
VALUE klass, fname;
{
char *name, *p;
VALUE dirname;
name = StringValuePtr(fname);
p = strrdirsep(name);
if (!p) {
return rb_str_new2(".");
}
if (p == name)
p++;
dirname = rb_str_new(name, p - name);
OBJ_INFECT(dirname, fname);
return dirname;
}
static VALUE
rb_file_s_extname(klass, fname)
VALUE klass, fname;
{
char *name, *p, *e;
VALUE extname;
name = StringValuePtr(fname);
p = strrdirsep(name); /* get the last path component */
if (!p)
p = name;
else
p++;
e = strrchr(p, '.'); /* get the last dot of the last component */
if (!e || e == p) /* no dot, or the only dot is first? */
return rb_str_new2("");
extname = rb_str_new2(e); /* keep the dot, too! */
OBJ_INFECT(extname, fname);
return extname;
}
static VALUE
rb_file_s_split(klass, path)
VALUE klass, path;
{
return rb_assoc_new(rb_file_s_dirname(Qnil, path), rb_file_s_basename(1,&path));
}
static VALUE separator;
static VALUE
rb_file_s_join(klass, args)
VALUE klass, args;
{
return rb_ary_join(args, separator);
}
static VALUE
rb_file_s_truncate(klass, path, len)
VALUE klass, path, len;
{
rb_secure(2);
SafeStringValue(path);
#ifdef HAVE_TRUNCATE
if (truncate(RSTRING(path)->ptr, NUM2OFFT(len)) < 0)
rb_sys_fail(RSTRING(path)->ptr);
#else
# ifdef HAVE_CHSIZE
{
int tmpfd;
# if defined(NT)
if ((tmpfd = open(RSTRING(path)->ptr, O_RDWR)) < 0) {
rb_sys_fail(RSTRING(path)->ptr);
}
# else
if ((tmpfd = open(RSTRING(path)->ptr, 0)) < 0) {
rb_sys_fail(RSTRING(path)->ptr);
}
# endif
if (chsize(tmpfd, NUM2OFFT(len)) < 0) {
close(tmpfd);
rb_sys_fail(RSTRING(path)->ptr);
}
close(tmpfd);
}
# else
rb_notimplement();
# endif
#endif
return INT2FIX(0);
}
static VALUE
rb_file_truncate(obj, len)
VALUE obj, len;
{
OpenFile *fptr;
rb_secure(2);
GetOpenFile(obj, fptr);
if (!(fptr->mode & FMODE_WRITABLE)) {
rb_raise(rb_eIOError, "not opened for writing");
}
#ifdef HAVE_TRUNCATE
if (ftruncate(fileno(fptr->f), NUM2OFFT(len)) < 0)
rb_sys_fail(fptr->path);
#else
# ifdef HAVE_CHSIZE
if (chsize(fileno(fptr->f), NUM2OFFT(len)) < 0)
rb_sys_fail(fptr->path);
# else
rb_notimplement();
# endif
#endif
return INT2FIX(0);
}
# ifndef LOCK_SH
# define LOCK_SH 1
# endif
# ifndef LOCK_EX
# define LOCK_EX 2
# endif
# ifndef LOCK_NB
# define LOCK_NB 4
# endif
# ifndef LOCK_UN
# define LOCK_UN 8
# endif
#if 0
static int
rb_thread_flock(fd, op, fptr)
int fd, op;
OpenFile *fptr;
{
if (rb_thread_alone() || (op & LOCK_NB)) {
return flock(fd, op);
}
op |= LOCK_NB;
while (flock(fd, op) < 0) {
switch (errno) {
case EAGAIN:
case EACCES:
#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
rb_thread_polling(); /* busy wait */
rb_io_check_closed(fptr);
continue;
default:
return -1;
}
}
return 0;
}
#define flock(fd, op) rb_thread_flock(fd, op, fptr)
#endif
static VALUE
rb_file_flock(obj, operation)
VALUE obj;
VALUE operation;
{
#ifndef __CHECKER__
OpenFile *fptr;
int ret;
rb_secure(2);
GetOpenFile(obj, fptr);
if (fptr->mode & FMODE_WRITABLE) {
fflush(GetWriteFile(fptr));
}
TRAP_BEG;
ret = flock(fileno(fptr->f), NUM2INT(operation));
TRAP_END;
if (ret < 0) {
switch (errno) {
case EAGAIN:
case EACCES:
#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
return Qfalse;
}
rb_sys_fail(fptr->path);
}
#endif
return INT2FIX(0);
}
#undef flock
static void
test_check(n, argc, argv)
int n, argc;
VALUE *argv;
{
int i;
n+=1;
if (n != argc) rb_raise(rb_eArgError, "wrong number of arguments(%d for %d)", argc, n);
for (i=1; i<n; i++) {
switch (TYPE(argv[i])) {
case T_STRING:
SafeStringValue(argv[i]);
break;
case T_FILE:
break;
default:
Check_Type(argv[i], T_STRING);
break;
}
}
}
#define CHECK(n) test_check((n), argc, argv)
static VALUE
rb_f_test(argc, argv)
int argc;
VALUE *argv;
{
int cmd;
if (argc == 0) rb_raise(rb_eArgError, "wrong number of arguments");
#if 0 /* 1.7 behavior? */
if (argc == 1) {
return RTEST(argv[0]) ? Qtrue : Qfalse;
}
#endif
cmd = NUM2CHR(argv[0]);
if (cmd == 0) return Qfalse;
if (strchr("bcdefgGkloOprRsSuwWxXz", cmd)) {
CHECK(1);
switch (cmd) {
case 'b':
return test_b(0, argv[1]);
case 'c':
return test_c(0, argv[1]);
case 'd':
return test_d(0, argv[1]);
case 'a':
case 'e':
return test_e(0, argv[1]);
case 'f':
return test_f(0, argv[1]);
case 'g':
return test_sgid(0, argv[1]);
case 'G':
return test_grpowned(0, argv[1]);
case 'k':
return test_sticky(0, argv[1]);
case 'l':
return test_l(0, argv[1]);
case 'o':
return test_owned(0, argv[1]);
case 'O':
return test_rowned(0, argv[1]);
case 'p':
return test_p(0, argv[1]);
case 'r':
return test_r(0, argv[1]);
case 'R':
return test_R(0, argv[1]);
case 's':
return test_s(0, argv[1]);
case 'S':
return test_S(0, argv[1]);
case 'u':
return test_suid(0, argv[1]);
case 'w':
return test_w(0, argv[1]);
case 'W':
return test_W(0, argv[1]);
case 'x':
return test_x(0, argv[1]);
case 'X':
return test_X(0, argv[1]);
case 'z':
return test_z(0, argv[1]);
}
}
if (strchr("MAC", cmd)) {
struct stat st;
CHECK(1);
if (rb_stat(argv[1], &st) == -1) {
rb_sys_fail(RSTRING(argv[1])->ptr);
}
switch (cmd) {
case 'A':
return rb_time_new(st.st_atime, 0);
case 'M':
return rb_time_new(st.st_mtime, 0);
case 'C':
return rb_time_new(st.st_ctime, 0);
}
}
if (strchr("-=<>", cmd)) {
struct stat st1, st2;
CHECK(2);
if (rb_stat(argv[1], &st1) < 0) return Qfalse;
if (rb_stat(argv[2], &st2) < 0) return Qfalse;
switch (cmd) {
case '-':
if (st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino)
return Qtrue;
return Qfalse;
case '=':
if (st1.st_mtime == st2.st_mtime) return Qtrue;
return Qfalse;
case '>':
if (st1.st_mtime > st2.st_mtime) return Qtrue;
return Qfalse;
case '<':
if (st1.st_mtime < st2.st_mtime) return Qtrue;
return Qfalse;
}
}
/* unknown command */
rb_raise(rb_eArgError, "unknown command ?%c", cmd);
return Qnil; /* not reached */
}
static VALUE
rb_stat_s_alloc(klass)
VALUE klass;
{
return stat_new_0(klass, 0);
}
static VALUE
rb_stat_init(obj, fname)
VALUE obj, fname;
{
struct stat st, *nst;
SafeStringValue(fname);
if (stat(RSTRING(fname)->ptr, &st) == -1) {
rb_sys_fail(RSTRING(fname)->ptr);
}
if (DATA_PTR(obj)) {
free(DATA_PTR(obj));
DATA_PTR(obj) = NULL;
}
nst = ALLOC(struct stat);
*nst = st;
DATA_PTR(obj) = nst;
return Qnil;
}
static VALUE
rb_stat_become(copy, orig)
VALUE copy, orig;
{
struct stat *nst;
if (copy == orig) return orig;
rb_check_frozen(copy);
/* need better argument type check */
if (!rb_obj_is_instance_of(orig, rb_obj_class(copy))) {
rb_raise(rb_eTypeError, "wrong argument class");
}
if (DATA_PTR(copy)) {
free(DATA_PTR(copy));
DATA_PTR(copy) = 0;
}
if (DATA_PTR(orig)) {
nst = ALLOC(struct stat);
*nst = *(struct stat*)DATA_PTR(orig);
DATA_PTR(copy) = nst;
}
return copy;
}
static VALUE
rb_stat_ftype(obj)
VALUE obj;
{
return rb_file_ftype(get_stat(obj));
}
static VALUE
rb_stat_d(obj)
VALUE obj;
{
if (S_ISDIR(get_stat(obj)->st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_p(obj)
VALUE obj;
{
#ifdef S_IFIFO
if (S_ISFIFO(get_stat(obj)->st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_l(obj)
VALUE obj;
{
#ifdef S_ISLNK
if (S_ISLNK(get_stat(obj)->st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_S(obj)
VALUE obj;
{
#ifdef S_ISSOCK
if (S_ISSOCK(get_stat(obj)->st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_b(obj)
VALUE obj;
{
#ifdef S_ISBLK
if (S_ISBLK(get_stat(obj)->st_mode)) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_c(obj)
VALUE obj;
{
if (S_ISCHR(get_stat(obj)->st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_owned(obj)
VALUE obj;
{
if (get_stat(obj)->st_uid == geteuid()) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_rowned(obj)
VALUE obj;
{
if (get_stat(obj)->st_uid == getuid()) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_grpowned(obj)
VALUE obj;
{
#ifndef NT
if (get_stat(obj)->st_gid == getegid()) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_r(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IRUSR
if (rb_stat_owned(obj))
return st->st_mode & S_IRUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IRGRP
if (rb_stat_grpowned(obj))
return st->st_mode & S_IRGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IROTH
if (!(st->st_mode & S_IROTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_R(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IRUSR
if (rb_stat_rowned(obj))
return st->st_mode & S_IRUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IRGRP
if (group_member(get_stat(obj)->st_gid))
return st->st_mode & S_IRGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IROTH
if (!(st->st_mode & S_IROTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_w(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IWUSR
if (rb_stat_owned(obj))
return st->st_mode & S_IWUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IWGRP
if (rb_stat_grpowned(obj))
return st->st_mode & S_IWGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IWOTH
if (!(st->st_mode & S_IWOTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_W(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IWUSR
if (rb_stat_rowned(obj))
return st->st_mode & S_IWUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IWGRP
if (group_member(get_stat(obj)->st_gid))
return st->st_mode & S_IWGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IWOTH
if (!(st->st_mode & S_IWOTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_x(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IXUSR
if (rb_stat_owned(obj))
return st->st_mode & S_IXUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IXGRP
if (rb_stat_grpowned(obj))
return st->st_mode & S_IXGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IXOTH
if (!(st->st_mode & S_IXOTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_X(obj)
VALUE obj;
{
struct stat *st = get_stat(obj);
#ifdef S_IXUSR
if (rb_stat_rowned(obj))
return st->st_mode & S_IXUSR ? Qtrue : Qfalse;
#endif
#ifdef S_IXGRP
if (group_member(get_stat(obj)->st_gid))
return st->st_mode & S_IXGRP ? Qtrue : Qfalse;
#endif
#ifdef S_IXOTH
if (!(st->st_mode & S_IXOTH)) return Qfalse;
#endif
return Qtrue;
}
static VALUE
rb_stat_f(obj)
VALUE obj;
{
if (S_ISREG(get_stat(obj)->st_mode)) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_z(obj)
VALUE obj;
{
if (get_stat(obj)->st_size == 0) return Qtrue;
return Qfalse;
}
static VALUE
rb_stat_s(obj)
VALUE obj;
{
off_t size = get_stat(obj)->st_size;
if (size == 0) return Qnil;
return OFFT2NUM(size);
}
static VALUE
rb_stat_suid(obj)
VALUE obj;
{
#ifdef S_ISUID
if (get_stat(obj)->st_mode & S_ISUID) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_sgid(obj)
VALUE obj;
{
#ifdef S_ISGID
if (get_stat(obj)->st_mode & S_ISGID) return Qtrue;
#endif
return Qfalse;
}
static VALUE
rb_stat_sticky(obj)
VALUE obj;
{
#ifdef S_ISVTX
if (get_stat(obj)->st_mode & S_ISVTX) return Qtrue;
#endif
return Qfalse;
}
static VALUE rb_mFConst;
void
rb_file_const(name, value)
const char *name;
VALUE value;
{
rb_define_const(rb_mFConst, name, value);
rb_define_const(rb_cIO, name, value);
rb_define_const(rb_cFile, name, value);
}
static int
is_absolute_path(path)
const char *path;
{
#if defined DOSISH || defined __CYGWIN__
if (ISALPHA(path[0]) && path[1] == ':' && isdirsep(path[2])) return 1;
if (isdirsep(path[0]) && isdirsep(path[1])) return 1;
#endif
#ifndef DOSISH
if (path[0] == '/') return 1;
#endif
return 0;
}
#ifndef DOSISH
static int
path_check_1(path)
VALUE path;
{
struct stat st;
char *p0 = RSTRING(path)->ptr;
char *p = 0, *s;
if (!is_absolute_path(p0)) {
char *buf = my_getcwd();
VALUE newpath;
newpath = rb_str_new2(buf);
free(buf);
rb_str_cat2(newpath, "/");
rb_str_cat2(newpath, p0);
return path_check_1(newpath);
}
for (;;) {
#ifndef S_IWOTH
# define S_IWOTH 002
#endif
if (stat(p0, &st) == 0 && S_ISDIR(st.st_mode) && (st.st_mode & S_IWOTH)
#ifdef S_ISVTX
&& (!p || !(st.st_mode & S_ISVTX))
#endif
) {
rb_warn("Insecure world writable dir %s, mode 0%o", p0, st.st_mode);
if (p) *p = '/';
return 0;
}
s = strrdirsep(p0);
if (p) *p = '/';
if (!s || s == p0) return 1;
p = s;
*p = '\0';
}
}
#endif
int
rb_path_check(path)
char *path;
{
#ifndef DOSISH
char *p0, *p, *pend;
const char sep = PATH_SEP_CHAR;
if (!path) return 1;
pend = path + strlen(path);
p0 = path;
p = strchr(path, sep);
if (!p) p = pend;
for (;;) {
if (!path_check_1(rb_str_new(p0, p - p0))) {
return 0; /* not safe */
}
p0 = p + 1;
if (p0 > pend) break;
p = strchr(p0, sep);
if (!p) p = pend;
}
#endif
return 1;
}
#if defined(__MACOS__) || defined(riscos)
static int
is_macos_native_path(path)
const char *path;
{
if (strchr(path, ':')) return 1;
return 0;
}
#endif
static int
file_load_ok(file)
char *file;
{
FILE *f;
if (!file) return 0;
f = fopen(file, "r");
if (f == NULL) return 0;
fclose(f);
return 1;
}
extern VALUE rb_load_path;
int
rb_find_file_ext(filep, ext)
VALUE *filep;
const char * const *ext;
{
char *path, *found;
char *f = RSTRING(*filep)->ptr;
VALUE fname;
long i, j;
if (f[0] == '~') {
fname = rb_file_s_expand_path(1, filep);
if (rb_safe_level() >= 2 && OBJ_TAINTED(fname)) {
rb_raise(rb_eSecurityError, "loading from unsafe file %s", f);
}
f = StringValuePtr(fname);
*filep = fname;
}
if (is_absolute_path(f)) {
for (i=0; ext[i]; i++) {
fname = rb_str_dup(*filep);
rb_str_cat2(fname, ext[i]);
if (file_load_ok(RSTRING(fname)->ptr)) {
*filep = fname;
return i+1;
}
}
return 0;
}
if (!rb_load_path) return 0;
Check_Type(rb_load_path, T_ARRAY);
for (i=0;i<RARRAY(rb_load_path)->len;i++) {
VALUE str = RARRAY(rb_load_path)->ptr[i];
SafeStringValue(str);
if (RSTRING(str)->len == 0) return 0;
path = RSTRING(str)->ptr;
for (j=0; ext[j]; j++) {
fname = rb_str_dup(*filep);
rb_str_cat2(fname, ext[j]);
found = dln_find_file(RSTRING(fname)->ptr, path);
if (found && file_load_ok(found)) {
*filep = fname;
return j+1;
}
}
}
return 0;
}
VALUE
rb_find_file(path)
VALUE path;
{
VALUE tmp;
char *f = RSTRING(path)->ptr;
char *lpath;
if (f[0] == '~') {
path = rb_file_s_expand_path(1, &path);
if (rb_safe_level() >= 2 && OBJ_TAINTED(path)) {
rb_raise(rb_eSecurityError, "loading from unsafe file %s", f);
}
f = StringValuePtr(path);
}
#if defined(__MACOS__) || defined(riscos)
if (is_macos_native_path(f)) {
if (rb_safe_level() >= 2 && !rb_path_check(f)) {
rb_raise(rb_eSecurityError, "loading from unsafe file %s", f);
}
if (file_load_ok(f)) return path;
}
#endif
if (is_absolute_path(f)) {
if (rb_safe_level() >= 2 && !rb_path_check(f)) {
rb_raise(rb_eSecurityError, "loading from unsafe file %s", f);
}
if (file_load_ok(f)) return path;
}
if (rb_safe_level() >= 4) {
rb_raise(rb_eSecurityError, "loading from non-absolute path %s", f);
}
if (rb_load_path) {
long i;
Check_Type(rb_load_path, T_ARRAY);
tmp = rb_ary_new();
for (i=0;i<RARRAY(rb_load_path)->len;i++) {
VALUE str = RARRAY(rb_load_path)->ptr[i];
SafeStringValue(str);
if (RSTRING(str)->len > 0) {
rb_ary_push(tmp, str);
}
}
tmp = rb_ary_join(tmp, rb_str_new2(PATH_SEP));
if (RSTRING(tmp)->len == 0) {
lpath = 0;
}
else {
lpath = RSTRING(tmp)->ptr;
if (rb_safe_level() >= 2 && !rb_path_check(lpath)) {
rb_raise(rb_eSecurityError, "loading from unsafe path %s", lpath);
}
}
}
else {
lpath = 0;
}
if (!lpath) {
return 0; /* no path, no load */
}
f = dln_find_file(f, lpath);
if (file_load_ok(f)) {
return rb_str_new2(f);
}
return 0;
}
static void
define_filetest_function(name, func, argc)
const char *name;
VALUE (*func)();
int argc;
{
rb_define_module_function(rb_mFileTest, name, func, argc);
rb_define_singleton_method(rb_cFile, name, func, argc);
}
void
Init_File()
{
rb_mFileTest = rb_define_module("FileTest");
rb_cFile = rb_define_class("File", rb_cIO);
define_filetest_function("directory?", test_d, 1);
define_filetest_function("exist?", test_e, 1);
define_filetest_function("exists?", test_e, 1); /* temporary */
define_filetest_function("readable?", test_r, 1);
define_filetest_function("readable_real?", test_R, 1);
define_filetest_function("writable?", test_w, 1);
define_filetest_function("writable_real?", test_W, 1);
define_filetest_function("executable?", test_x, 1);
define_filetest_function("executable_real?", test_X, 1);
define_filetest_function("file?", test_f, 1);
define_filetest_function("zero?", test_z, 1);
define_filetest_function("size?", test_s, 1);
define_filetest_function("size", rb_file_s_size, 1);
define_filetest_function("owned?", test_owned, 1);
define_filetest_function("grpowned?", test_grpowned, 1);
define_filetest_function("pipe?", test_p, 1);
define_filetest_function("symlink?", test_l, 1);
define_filetest_function("socket?", test_S, 1);
define_filetest_function("blockdev?", test_b, 1);
define_filetest_function("chardev?", test_c, 1);
define_filetest_function("setuid?", test_suid, 1);
define_filetest_function("setgid?", test_sgid, 1);
define_filetest_function("sticky?", test_sticky, 1);
rb_define_singleton_method(rb_cFile, "stat", rb_file_s_stat, 1);
rb_define_singleton_method(rb_cFile, "lstat", rb_file_s_lstat, 1);
rb_define_singleton_method(rb_cFile, "ftype", rb_file_s_ftype, 1);
rb_define_singleton_method(rb_cFile, "atime", rb_file_s_atime, 1);
rb_define_singleton_method(rb_cFile, "mtime", rb_file_s_mtime, 1);
rb_define_singleton_method(rb_cFile, "ctime", rb_file_s_ctime, 1);
rb_define_singleton_method(rb_cFile, "utime", rb_file_s_utime, -1);
rb_define_singleton_method(rb_cFile, "chmod", rb_file_s_chmod, -1);
rb_define_singleton_method(rb_cFile, "chown", rb_file_s_chown, -1);
rb_define_singleton_method(rb_cFile, "lchmod", rb_file_s_lchmod, -1);
rb_define_singleton_method(rb_cFile, "lchown", rb_file_s_lchown, -1);
rb_define_singleton_method(rb_cFile, "link", rb_file_s_link, 2);
rb_define_singleton_method(rb_cFile, "symlink", rb_file_s_symlink, 2);
rb_define_singleton_method(rb_cFile, "readlink", rb_file_s_readlink, 1);
rb_define_singleton_method(rb_cFile, "unlink", rb_file_s_unlink, -2);
rb_define_singleton_method(rb_cFile, "delete", rb_file_s_unlink, -2);
rb_define_singleton_method(rb_cFile, "rename", rb_file_s_rename, 2);
rb_define_singleton_method(rb_cFile, "umask", rb_file_s_umask, -1);
rb_define_singleton_method(rb_cFile, "truncate", rb_file_s_truncate, 2);
rb_define_singleton_method(rb_cFile, "expand_path", rb_file_s_expand_path, -1);
rb_define_singleton_method(rb_cFile, "basename", rb_file_s_basename, -1);
rb_define_singleton_method(rb_cFile, "dirname", rb_file_s_dirname, 1);
rb_define_singleton_method(rb_cFile, "extname", rb_file_s_extname, 1);
separator = rb_obj_freeze(rb_str_new2("/"));
rb_define_const(rb_cFile, "Separator", separator);
rb_define_const(rb_cFile, "SEPARATOR", separator);
rb_define_singleton_method(rb_cFile, "split", rb_file_s_split, 1);
rb_define_singleton_method(rb_cFile, "join", rb_file_s_join, -2);
#if defined DOSISH && !defined __CYGWIN__
rb_define_const(rb_cFile, "ALT_SEPARATOR", rb_obj_freeze(rb_str_new2("\\")));
#else
rb_define_const(rb_cFile, "ALT_SEPARATOR", Qnil);
#endif
rb_define_const(rb_cFile, "PATH_SEPARATOR", rb_obj_freeze(rb_str_new2(PATH_SEP)));
rb_define_method(rb_cIO, "stat", rb_io_stat, 0); /* this is IO's method */
rb_define_method(rb_cFile, "lstat", rb_file_lstat, 0);
rb_define_method(rb_cFile, "atime", rb_file_atime, 0);
rb_define_method(rb_cFile, "mtime", rb_file_mtime, 0);
rb_define_method(rb_cFile, "ctime", rb_file_ctime, 0);
rb_define_method(rb_cFile, "chmod", rb_file_chmod, 1);
rb_define_method(rb_cFile, "chown", rb_file_chown, 2);
rb_define_method(rb_cFile, "truncate", rb_file_truncate, 1);
rb_define_method(rb_cFile, "flock", rb_file_flock, 1);
rb_mFConst = rb_define_module_under(rb_cFile, "Constants");
rb_include_module(rb_cFile, rb_mFConst);
rb_file_const("LOCK_SH", INT2FIX(LOCK_SH));
rb_file_const("LOCK_EX", INT2FIX(LOCK_EX));
rb_file_const("LOCK_UN", INT2FIX(LOCK_UN));
rb_file_const("LOCK_NB", INT2FIX(LOCK_NB));
rb_define_method(rb_cFile, "path", rb_file_path, 0);
rb_define_global_function("test", rb_f_test, -1);
rb_cStat = rb_define_class_under(rb_cFile, "Stat", rb_cObject);
rb_define_singleton_method(rb_cStat, "allocate", rb_stat_s_alloc, 0);
rb_define_method(rb_cStat, "initialize", rb_stat_init, 1);
rb_define_method(rb_cStat, "become", rb_stat_become, 1);
rb_include_module(rb_cStat, rb_mComparable);
rb_define_method(rb_cStat, "<=>", rb_stat_cmp, 1);
rb_define_method(rb_cStat, "dev", rb_stat_dev, 0);
rb_define_method(rb_cStat, "ino", rb_stat_ino, 0);
rb_define_method(rb_cStat, "mode", rb_stat_mode, 0);
rb_define_method(rb_cStat, "nlink", rb_stat_nlink, 0);
rb_define_method(rb_cStat, "uid", rb_stat_uid, 0);
rb_define_method(rb_cStat, "gid", rb_stat_gid, 0);
rb_define_method(rb_cStat, "rdev", rb_stat_rdev, 0);
rb_define_method(rb_cStat, "rdev_major", rb_stat_rdev_major, 0);
rb_define_method(rb_cStat, "rdev_minor", rb_stat_rdev_minor, 0);
rb_define_method(rb_cStat, "size", rb_stat_size, 0);
rb_define_method(rb_cStat, "blksize", rb_stat_blksize, 0);
rb_define_method(rb_cStat, "blocks", rb_stat_blocks, 0);
rb_define_method(rb_cStat, "atime", rb_stat_atime, 0);
rb_define_method(rb_cStat, "mtime", rb_stat_mtime, 0);
rb_define_method(rb_cStat, "ctime", rb_stat_ctime, 0);
rb_define_method(rb_cStat, "inspect", rb_stat_inspect, 0);
rb_define_method(rb_cStat, "ftype", rb_stat_ftype, 0);
rb_define_method(rb_cStat, "directory?", rb_stat_d, 0);
rb_define_method(rb_cStat, "readable?", rb_stat_r, 0);
rb_define_method(rb_cStat, "readable_real?", rb_stat_R, 0);
rb_define_method(rb_cStat, "writable?", rb_stat_w, 0);
rb_define_method(rb_cStat, "writable_real?", rb_stat_W, 0);
rb_define_method(rb_cStat, "executable?", rb_stat_x, 0);
rb_define_method(rb_cStat, "executable_real?", rb_stat_X, 0);
rb_define_method(rb_cStat, "file?", rb_stat_f, 0);
rb_define_method(rb_cStat, "zero?", rb_stat_z, 0);
rb_define_method(rb_cStat, "size?", rb_stat_s, 0);
rb_define_method(rb_cStat, "owned?", rb_stat_owned, 0);
rb_define_method(rb_cStat, "grpowned?", rb_stat_grpowned, 0);
rb_define_method(rb_cStat, "pipe?", rb_stat_p, 0);
rb_define_method(rb_cStat, "symlink?", rb_stat_l, 0);
rb_define_method(rb_cStat, "socket?", rb_stat_S, 0);
rb_define_method(rb_cStat, "blockdev?", rb_stat_b, 0);
rb_define_method(rb_cStat, "chardev?", rb_stat_c, 0);
rb_define_method(rb_cStat, "setuid?", rb_stat_suid, 0);
rb_define_method(rb_cStat, "setgid?", rb_stat_sgid, 0);
rb_define_method(rb_cStat, "sticky?", rb_stat_sticky, 0);
}
Jump to Line
Something went wrong with that request. Please try again.