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ruby--ruby/ruby.c
Jeremy Evans ffd0820ab3 Deprecate taint/trust and related methods, and make the methods no-ops 
This removes the related tests, and puts the related specs behind
version guards.  This affects all code in lib, including some
libraries that may want to support older versions of Ruby.
2019-11-18 01:00:25 +02:00

2425 lines
62 KiB
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/**********************************************************************
ruby.c -
$Author$
created at: Tue Aug 10 12:47:31 JST 1993
Copyright (C) 1993-2007 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#ifdef __CYGWIN__
#include <windows.h>
#include <sys/cygwin.h>
#endif
#include "ruby/encoding.h"
#include "ruby/thread.h"
#include "ruby/version.h"
#include "internal.h"
#include "eval_intern.h"
#include "dln.h"
#include <stdio.h>
#include <sys/types.h>
#include <ctype.h>
#ifdef __hpux
#include <sys/pstat.h>
#endif
#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
#include <dlfcn.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(HAVE_FCNTL_H)
#include <fcntl.h>
#elif defined(HAVE_SYS_FCNTL_H)
#include <sys/fcntl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef MAXPATHLEN
# define MAXPATHLEN 1024
#endif
#ifndef O_ACCMODE
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
#endif
#include "ruby/util.h"
#include "mjit.h"
void Init_ruby_description(void);
#ifndef HAVE_STDLIB_H
char *getenv();
#endif
#ifndef DISABLE_RUBYGEMS
# define DISABLE_RUBYGEMS 0
#endif
#if DISABLE_RUBYGEMS
#define DEFAULT_RUBYGEMS_ENABLED "disabled"
#else
#define DEFAULT_RUBYGEMS_ENABLED "enabled"
#endif
#define COMMA ,
#define FEATURE_BIT(bit) (1U << feature_##bit)
#define EACH_FEATURES(X, SEP) \
X(gems) \
SEP \
X(did_you_mean) \
SEP \
X(rubyopt) \
SEP \
X(frozen_string_literal) \
SEP \
X(jit) \
/* END OF FEATURES */
#define EACH_DEBUG_FEATURES(X, SEP) \
X(frozen_string_literal) \
/* END OF DEBUG FEATURES */
#define AMBIGUOUS_FEATURE_NAMES 0 /* no ambiguous feature names now */
#define DEFINE_FEATURE(bit) feature_##bit
#define DEFINE_DEBUG_FEATURE(bit) feature_debug_##bit
enum feature_flag_bits {
EACH_FEATURES(DEFINE_FEATURE, COMMA),
feature_debug_flag_first,
feature_debug_flag_begin = feature_debug_flag_first - 1,
EACH_DEBUG_FEATURES(DEFINE_DEBUG_FEATURE, COMMA),
feature_flag_count
};
#define DEBUG_BIT(bit) (1U << feature_debug_##bit)
#define DUMP_BIT(bit) (1U << dump_##bit)
#define DEFINE_DUMP(bit) dump_##bit
#define EACH_DUMPS(X, SEP) \
X(version) \
SEP \
X(copyright) \
SEP \
X(usage) \
SEP \
X(help) \
SEP \
X(yydebug) \
SEP \
X(syntax) \
SEP \
X(parsetree) \
SEP \
X(parsetree_with_comment) \
SEP \
X(insns) \
/* END OF DUMPS */
enum dump_flag_bits {
dump_version_v,
EACH_DUMPS(DEFINE_DUMP, COMMA),
dump_exit_bits = (DUMP_BIT(yydebug) | DUMP_BIT(syntax) |
DUMP_BIT(parsetree) | DUMP_BIT(parsetree_with_comment) |
DUMP_BIT(insns))
};
typedef struct ruby_cmdline_options ruby_cmdline_options_t;
typedef struct {
unsigned int mask;
unsigned int set;
} ruby_features_t;
static inline void
rb_feature_set_to(ruby_features_t *feat, unsigned int bit_mask, unsigned int bit_set)
{
feat->mask |= bit_mask;
feat->set = (feat->set & ~bit_mask) | bit_set;
}
#define FEATURE_SET_TO(feat, bit_mask, bit_set) \
rb_feature_set_to(&(feat), bit_mask, bit_set)
#define FEATURE_SET(feat, bits) FEATURE_SET_TO(feat, bits, bits)
#define FEATURE_SET_P(feat, bits) ((feat).set & (bits))
struct ruby_cmdline_options {
const char *script;
VALUE script_name;
VALUE e_script;
struct {
struct {
VALUE name;
int index;
} enc;
} src, ext, intern;
VALUE req_list;
ruby_features_t features;
unsigned int dump;
#if USE_MJIT
struct mjit_options mjit;
#endif
int sflag, xflag;
unsigned int warning: 1;
unsigned int verbose: 1;
unsigned int do_loop: 1;
unsigned int do_print: 1;
unsigned int do_line: 1;
unsigned int do_split: 1;
unsigned int do_search: 1;
unsigned int setids: 2;
};
static void init_ids(ruby_cmdline_options_t *);
#define src_encoding_index GET_VM()->src_encoding_index
enum {
COMPILATION_FEATURES = (
0
| FEATURE_BIT(frozen_string_literal)
| FEATURE_BIT(debug_frozen_string_literal)
),
DEFAULT_FEATURES = (
(FEATURE_BIT(debug_flag_first)-1)
#if DISABLE_RUBYGEMS
& ~FEATURE_BIT(gems)
#endif
& ~FEATURE_BIT(frozen_string_literal)
& ~FEATURE_BIT(jit)
)
};
static ruby_cmdline_options_t *
cmdline_options_init(ruby_cmdline_options_t *opt)
{
MEMZERO(opt, *opt, 1);
init_ids(opt);
opt->src.enc.index = src_encoding_index;
opt->ext.enc.index = -1;
opt->intern.enc.index = -1;
opt->features.set = DEFAULT_FEATURES;
#ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
opt->features.set |= FEATURE_BIT(jit);
#endif
return opt;
}
static rb_ast_t *load_file(VALUE parser, VALUE fname, VALUE f, int script,
ruby_cmdline_options_t *opt);
static VALUE open_load_file(VALUE fname_v, int *xflag);
static void forbid_setid(const char *, const ruby_cmdline_options_t *);
#define forbid_setid(s) forbid_setid((s), opt)
static struct {
int argc;
char **argv;
} origarg;
static void
show_usage_line(const char *str, unsigned int namelen, unsigned int secondlen, int help)
{
const unsigned int w = 16;
const int wrap = help && namelen + secondlen - 1 > w;
printf(" %.*s%-*.*s%-*s%s\n", namelen-1, str,
(wrap ? 0 : w - namelen + 1),
(help ? secondlen-1 : 0), str + namelen,
(wrap ? w + 3 : 0), (wrap ? "\n" : ""),
str + namelen + secondlen);
}
static void
usage(const char *name, int help)
{
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
struct message {
const char *str;
unsigned short namelen, secondlen;
};
#define M(shortopt, longopt, desc) { \
shortopt " " longopt " " desc, \
(unsigned short)sizeof(shortopt), \
(unsigned short)sizeof(longopt), \
}
static const struct message usage_msg[] = {
M("-0[octal]", "", "specify record separator (\\0, if no argument)"),
M("-a", "", "autosplit mode with -n or -p (splits $_ into $F)"),
M("-c", "", "check syntax only"),
M("-Cdirectory", "", "cd to directory before executing your script"),
M("-d", ", --debug", "set debugging flags (set $DEBUG to true)"),
M("-e 'command'", "", "one line of script. Several -e's allowed. Omit [programfile]"),
M("-Eex[:in]", ", --encoding=ex[:in]", "specify the default external and internal character encodings"),
M("-Fpattern", "", "split() pattern for autosplit (-a)"),
M("-i[extension]", "", "edit ARGV files in place (make backup if extension supplied)"),
M("-Idirectory", "", "specify $LOAD_PATH directory (may be used more than once)"),
M("-l", "", "enable line ending processing"),
M("-n", "", "assume 'while gets(); ... end' loop around your script"),
M("-p", "", "assume loop like -n but print line also like sed"),
M("-rlibrary", "", "require the library before executing your script"),
M("-s", "", "enable some switch parsing for switches after script name"),
M("-S", "", "look for the script using PATH environment variable"),
M("-v", "", "print the version number, then turn on verbose mode"),
M("-w", "", "turn warnings on for your script"),
M("-W[level=2]", "", "set warning level; 0=silence, 1=medium, 2=verbose"),
M("-x[directory]", "", "strip off text before #!ruby line and perhaps cd to directory"),
M("--jit", "", "enable JIT with default options (experimental)"),
M("--jit-[option]","", "enable JIT with an option (experimental)"),
M("-h", "", "show this message, --help for more info"),
};
static const struct message help_msg[] = {
M("--copyright", "", "print the copyright"),
M("--dump={insns|parsetree|...}[,...]", "",
"dump debug information. see below for available dump list"),
M("--enable={gems|rubyopt|...}[,...]", ", --disable={gems|rubyopt|...}[,...]",
"enable or disable features. see below for available features"),
M("--external-encoding=encoding", ", --internal-encoding=encoding",
"specify the default external or internal character encoding"),
M("--verbose", "", "turn on verbose mode and disable script from stdin"),
M("--version", "", "print the version number, then exit"),
M("--help", "", "show this message, -h for short message"),
};
static const struct message dumps[] = {
M("insns", "", "instruction sequences"),
M("yydebug", "", "yydebug of yacc parser generator"),
M("parsetree", "", "AST"),
M("parsetree_with_comment", "", "AST with comments"),
};
static const struct message features[] = {
M("gems", "", "rubygems (default: "DEFAULT_RUBYGEMS_ENABLED")"),
M("did_you_mean", "", "did_you_mean (default: "DEFAULT_RUBYGEMS_ENABLED")"),
M("rubyopt", "", "RUBYOPT environment variable (default: enabled)"),
M("frozen-string-literal", "", "freeze all string literals (default: disabled)"),
M("jit", "", "JIT compiler (default: disabled)"),
};
static const struct message mjit_options[] = {
M("--jit-warnings", "", "Enable printing JIT warnings"),
M("--jit-debug", "", "Enable JIT debugging (very slow)"),
M("--jit-wait", "", "Wait until JIT compilation is finished everytime (for testing)"),
M("--jit-save-temps", "", "Save JIT temporary files in $TMP or /tmp (for testing)"),
M("--jit-verbose=num", "", "Print JIT logs of level num or less to stderr (default: 0)"),
M("--jit-max-cache=num", "", "Max number of methods to be JIT-ed in a cache (default: 100)"),
M("--jit-min-calls=num", "", "Number of calls to trigger JIT (for testing, default: 10000)"),
};
int i;
const int num = numberof(usage_msg) - (help ? 1 : 0);
#define SHOW(m) show_usage_line((m).str, (m).namelen, (m).secondlen, help)
printf("Usage: %s [switches] [--] [programfile] [arguments]\n", name);
for (i = 0; i < num; ++i)
SHOW(usage_msg[i]);
if (!help) return;
for (i = 0; i < numberof(help_msg); ++i)
SHOW(help_msg[i]);
puts("Dump List:");
for (i = 0; i < numberof(dumps); ++i)
SHOW(dumps[i]);
puts("Features:");
for (i = 0; i < numberof(features); ++i)
SHOW(features[i]);
puts("JIT options (experimental):");
for (i = 0; i < numberof(mjit_options); ++i)
SHOW(mjit_options[i]);
}
#define rubylib_path_new rb_str_new
static void
push_include(const char *path, VALUE (*filter)(VALUE))
{
const char sep = PATH_SEP_CHAR;
const char *p, *s;
VALUE load_path = GET_VM()->load_path;
p = path;
while (*p) {
while (*p == sep)
p++;
if (!*p) break;
for (s = p; *s && *s != sep; s = CharNext(s));
rb_ary_push(load_path, (*filter)(rubylib_path_new(p, s - p)));
p = s;
}
}
#ifdef __CYGWIN__
static void
push_include_cygwin(const char *path, VALUE (*filter)(VALUE))
{
const char *p, *s;
char rubylib[FILENAME_MAX];
VALUE buf = 0;
p = path;
while (*p) {
unsigned int len;
while (*p == ';')
p++;
if (!*p) break;
for (s = p; *s && *s != ';'; s = CharNext(s));
len = s - p;
if (*s) {
if (!buf) {
buf = rb_str_new(p, len);
p = RSTRING_PTR(buf);
}
else {
rb_str_resize(buf, len);
p = strncpy(RSTRING_PTR(buf), p, len);
}
}
#ifdef HAVE_CYGWIN_CONV_PATH
#define CONV_TO_POSIX_PATH(p, lib) \
cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib))
#else
# error no cygwin_conv_path
#endif
if (CONV_TO_POSIX_PATH(p, rubylib) == 0)
p = rubylib;
push_include(p, filter);
if (!*s) break;
p = s + 1;
}
}
#define push_include push_include_cygwin
#endif
void
ruby_push_include(const char *path, VALUE (*filter)(VALUE))
{
if (path == 0)
return;
push_include(path, filter);
}
static VALUE
identical_path(VALUE path)
{
return path;
}
static VALUE
locale_path(VALUE path)
{
rb_enc_associate(path, rb_locale_encoding());
return path;
}
void
ruby_incpush(const char *path)
{
ruby_push_include(path, locale_path);
}
static VALUE
expand_include_path(VALUE path)
{
char *p = RSTRING_PTR(path);
if (!p)
return path;
if (*p == '.' && p[1] == '/')
return path;
return rb_file_expand_path(path, Qnil);
}
void
ruby_incpush_expand(const char *path)
{
ruby_push_include(path, expand_include_path);
}
#undef UTF8_PATH
#if defined _WIN32 || defined __CYGWIN__
static HMODULE libruby;
BOOL WINAPI
DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved)
{
if (reason == DLL_PROCESS_ATTACH)
libruby = dll;
return TRUE;
}
HANDLE
rb_libruby_handle(void)
{
return libruby;
}
static inline void
translit_char_bin(char *p, int from, int to)
{
while (*p) {
if ((unsigned char)*p == from)
*p = to;
p++;
}
}
#endif
#ifdef _WIN32
# define UTF8_PATH 1
#endif
#ifndef UTF8_PATH
# define UTF8_PATH 0
#endif
#if UTF8_PATH
# define IF_UTF8_PATH(t, f) t
#else
# define IF_UTF8_PATH(t, f) f
#endif
#if UTF8_PATH
static VALUE
str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
{
return rb_str_conv_enc_opts(str, from, to,
ECONV_UNDEF_REPLACE|ECONV_INVALID_REPLACE,
Qnil);
}
#else
# define str_conv_enc(str, from, to) (str)
#endif
void ruby_init_loadpath(void);
#if defined(LOAD_RELATIVE)
static VALUE
runtime_libruby_path(void)
{
#if defined _WIN32 || defined __CYGWIN__
DWORD len = RSTRING_EMBED_LEN_MAX, ret;
VALUE path;
VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
WCHAR *wlibpath;
char *libpath;
while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
ret = GetModuleFileNameW(libruby, wlibpath, len),
(ret == len))
{
rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
}
if (!ret || ret > len) rb_fatal("failed to get module file name");
#if defined __CYGWIN__
{
const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0);
if (!newsize) rb_fatal("failed to convert module path to cygwin");
path = rb_str_new(0, newsize);
libpath = RSTRING_PTR(path);
if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) {
rb_str_resize(path, 0);
}
}
#else
{
DWORD i;
for (len = ret, i = 0; i < len; ++i) {
if (wlibpath[i] == L'\\') {
wlibpath[i] = L'/';
ret = i+1; /* chop after the last separator */
}
}
}
len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
path = rb_utf8_str_new(0, len);
libpath = RSTRING_PTR(path);
WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
#endif
rb_str_resize(wsopath, 0);
return path;
#elif defined(HAVE_DLADDR)
Dl_info dli;
VALUE fname, path;
const void* addr = (void *)(VALUE)expand_include_path;
if (!dladdr((void *)addr, &dli)) {
return rb_str_new(0, 0);
}
#ifdef __linux__
else if (origarg.argc > 0 && origarg.argv && dli.dli_fname == origarg.argv[0]) {
fname = rb_str_new_cstr("/proc/self/exe");
path = rb_readlink(fname, NULL);
}
#endif
else {
fname = rb_str_new_cstr(dli.dli_fname);
path = rb_realpath_internal(Qnil, fname, 1);
}
rb_str_resize(fname, 0);
return path;
#else
# error relative load path is not supported on this platform.
#endif
}
#endif
#define INITIAL_LOAD_PATH_MARK rb_intern_const("@gem_prelude_index")
VALUE ruby_archlibdir_path, ruby_prefix_path;
void
ruby_init_loadpath(void)
{
VALUE load_path, archlibdir = 0;
ID id_initial_load_path_mark;
const char *paths = ruby_initial_load_paths;
#if defined LOAD_RELATIVE
#if !defined ENABLE_MULTIARCH
# define RUBY_ARCH_PATH ""
#elif defined RUBY_ARCH
# define RUBY_ARCH_PATH "/"RUBY_ARCH
#else
# define RUBY_ARCH_PATH "/"RUBY_PLATFORM
#endif
char *libpath;
VALUE sopath;
size_t baselen;
const char *p;
sopath = runtime_libruby_path();
libpath = RSTRING_PTR(sopath);
p = strrchr(libpath, '/');
if (p) {
static const char libdir[] = "/"
#ifdef LIBDIR_BASENAME
LIBDIR_BASENAME
#else
"lib"
#endif
RUBY_ARCH_PATH;
const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir)
- rb_strlen_lit(RUBY_ARCH_PATH) - 1;
static const char bindir[] = "/bin";
const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1;
const char *p2 = NULL;
#ifdef ENABLE_MULTIARCH
multiarch:
#endif
if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) {
p -= bindir_len;
archlibdir = rb_str_subseq(sopath, 0, p - libpath);
rb_str_cat_cstr(archlibdir, libdir);
OBJ_FREEZE_RAW(archlibdir);
}
else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) {
archlibdir = rb_str_subseq(sopath, 0, (p2 ? p2 : p) - libpath);
OBJ_FREEZE_RAW(archlibdir);
p -= libdir_len;
}
#ifdef ENABLE_MULTIARCH
else if (p2) {
p = p2;
}
else {
p2 = p;
p = rb_enc_path_last_separator(libpath, p, rb_ascii8bit_encoding());
if (p) goto multiarch;
p = p2;
}
#endif
}
baselen = p - libpath;
rb_str_resize(sopath, baselen);
libpath = RSTRING_PTR(sopath);
#define PREFIX_PATH() sopath
#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len))
#else
const size_t exec_prefix_len = strlen(ruby_exec_prefix);
#define RUBY_RELATIVE(path, len) rubylib_path_new((path), (len))
#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len)
#endif
rb_gc_register_address(&ruby_prefix_path);
ruby_prefix_path = PREFIX_PATH();
OBJ_FREEZE_RAW(ruby_prefix_path);
if (!archlibdir) archlibdir = ruby_prefix_path;
rb_gc_register_address(&ruby_archlibdir_path);
ruby_archlibdir_path = archlibdir;
load_path = GET_VM()->load_path;
ruby_push_include(getenv("RUBYLIB"), identical_path);
id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
while (*paths) {
size_t len = strlen(paths);
VALUE path = RUBY_RELATIVE(paths, len);
rb_ivar_set(path, id_initial_load_path_mark, path);
rb_ary_push(load_path, path);
paths += len + 1;
}
rb_const_set(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"), ruby_prefix_path);
}
static void
add_modules(VALUE *req_list, const char *mod)
{
VALUE list = *req_list;
VALUE feature;
if (!list) {
*req_list = list = rb_ary_tmp_new(0);
}
feature = rb_str_cat_cstr(rb_str_tmp_new(0), mod);
rb_ary_push(list, feature);
}
static void
require_libraries(VALUE *req_list)
{
VALUE list = *req_list;
VALUE self = rb_vm_top_self();
ID require;
rb_encoding *extenc = rb_default_external_encoding();
CONST_ID(require, "require");
while (list && RARRAY_LEN(list) > 0) {
VALUE feature = rb_ary_shift(list);
rb_enc_associate(feature, extenc);
RBASIC_SET_CLASS_RAW(feature, rb_cString);
OBJ_FREEZE(feature);
rb_funcallv(self, require, 1, &feature);
}
*req_list = 0;
}
static const struct rb_block*
toplevel_context(rb_binding_t *bind)
{
return &bind->block;
}
static void
process_sflag(int *sflag)
{
if (*sflag > 0) {
long n;
const VALUE *args;
VALUE argv = rb_argv;
n = RARRAY_LEN(argv);
args = RARRAY_CONST_PTR(argv);
while (n > 0) {
VALUE v = *args++;
char *s = StringValuePtr(v);
char *p;
int hyphen = FALSE;
if (s[0] != '-')
break;
n--;
if (s[1] == '-' && s[2] == '\0')
break;
v = Qtrue;
/* check if valid name before replacing - with _ */
for (p = s + 1; *p; p++) {
if (*p == '=') {
*p++ = '\0';
v = rb_str_new2(p);
break;
}
if (*p == '-') {
hyphen = TRUE;
}
else if (*p != '_' && !ISALNUM(*p)) {
VALUE name_error[2];
name_error[0] =
rb_str_new2("invalid name for global variable - ");
if (!(p = strchr(p, '='))) {
rb_str_cat2(name_error[0], s);
}
else {
rb_str_cat(name_error[0], s, p - s);
}
name_error[1] = args[-1];
rb_exc_raise(rb_class_new_instance(2, name_error, rb_eNameError));
}
}
s[0] = '$';
if (hyphen) {
for (p = s + 1; *p; ++p) {
if (*p == '-')
*p = '_';
}
}
rb_gv_set(s, v);
}
n = RARRAY_LEN(argv) - n;
while (n--) {
rb_ary_shift(argv);
}
*sflag = -1;
}
}
static long proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt);
static void
moreswitches(const char *s, ruby_cmdline_options_t *opt, int envopt)
{
long argc, i, len;
char **argv, *p;
const char *ap = 0;
VALUE argstr, argary;
void *ptr;
while (ISSPACE(*s)) s++;
if (!*s) return;
argstr = rb_str_tmp_new((len = strlen(s)) + (envopt!=0));
argary = rb_str_tmp_new(0);
p = RSTRING_PTR(argstr);
if (envopt) *p++ = ' ';
memcpy(p, s, len + 1);
ap = 0;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
while (*p) {
ap = p;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
while (*p && !ISSPACE(*p)) ++p;
if (!*p) break;
*p++ = '\0';
while (ISSPACE(*p)) ++p;
}
argc = RSTRING_LEN(argary) / sizeof(ap);
ap = 0;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
argv = ptr = ALLOC_N(char *, argc);
MEMMOVE(argv, RSTRING_PTR(argary), char *, argc);
while ((i = proc_options(argc, argv, opt, envopt)) > 1 && envopt && (argc -= i) > 0) {
argv += i;
if (**argv != '-') {
*--*argv = '-';
}
if ((*argv)[1]) {
++argc;
--argv;
}
}
ruby_xfree(ptr);
/* get rid of GC */
rb_str_resize(argary, 0);
rb_str_resize(argstr, 0);
}
static int
name_match_p(const char *name, const char *str, size_t len)
{
if (len == 0) return 0;
while (1) {
while (TOLOWER(*str) == *name) {
if (!--len || !*++str) return 1;
++name;
}
if (*str != '-' && *str != '_') return 0;
while (ISALNUM(*name)) name++;
if (*name != '-' && *name != '_') return 0;
++name;
++str;
}
}
#define NAME_MATCH_P(name, str, len) \
((len) < (int)sizeof(name) && name_match_p((name), (str), (len)))
#define UNSET_WHEN(name, bit, str, len) \
if (NAME_MATCH_P((name), (str), (len))) { \
*(unsigned int *)arg &= ~(bit); \
return; \
}
#define SET_WHEN(name, bit, str, len) \
if (NAME_MATCH_P((name), (str), (len))) { \
*(unsigned int *)arg |= (bit); \
return; \
}
#define LITERAL_NAME_ELEMENT(name) #name
static void
feature_option(const char *str, int len, void *arg, const unsigned int enable)
{
static const char list[] = EACH_FEATURES(LITERAL_NAME_ELEMENT, ", ");
ruby_features_t *argp = arg;
unsigned int mask = ~0U;
unsigned int set = 0U;
#if AMBIGUOUS_FEATURE_NAMES
int matched = 0;
# define FEATURE_FOUND ++matched
#else
# define FEATURE_FOUND goto found
#endif
#define SET_FEATURE(bit) \
if (NAME_MATCH_P(#bit, str, len)) {set |= mask = FEATURE_BIT(bit); FEATURE_FOUND;}
EACH_FEATURES(SET_FEATURE, ;);
if (NAME_MATCH_P("all", str, len)) {
found:
FEATURE_SET_TO(*argp, mask, (mask & enable));
return;
}
#if AMBIGUOUS_FEATURE_NAMES
if (matched == 1) goto found;
if (matched > 1) {
VALUE mesg = rb_sprintf("ambiguous feature: `%.*s' (", len, str);
#define ADD_FEATURE_NAME(bit) \
if (FEATURE_BIT(bit) & set) { \
rb_str_cat_cstr(mesg, #bit); \
if (--matched) rb_str_cat_cstr(mesg, ", "); \
}
EACH_FEATURES(ADD_FEATURE_NAME, ;);
rb_str_cat_cstr(mesg, ")");
rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg));
#undef ADD_FEATURE_NAME
}
#endif
rb_warn("unknown argument for --%s: `%.*s'",
enable ? "enable" : "disable", len, str);
rb_warn("features are [%.*s].", (int)strlen(list), list);
}
static void
enable_option(const char *str, int len, void *arg)
{
feature_option(str, len, arg, ~0U);
}
static void
disable_option(const char *str, int len, void *arg)
{
feature_option(str, len, arg, 0U);
}
RUBY_EXTERN const int ruby_patchlevel;
int ruby_env_debug_option(const char *str, int len, void *arg);
static void
debug_option(const char *str, int len, void *arg)
{
static const char list[] = EACH_DEBUG_FEATURES(LITERAL_NAME_ELEMENT, ", ");
ruby_features_t *argp = arg;
#define SET_WHEN_DEBUG(bit) \
if (NAME_MATCH_P(#bit, str, len)) { \
FEATURE_SET(*argp, DEBUG_BIT(bit)); \
return; \
}
EACH_DEBUG_FEATURES(SET_WHEN_DEBUG, ;);
#ifdef RUBY_DEVEL
if (ruby_patchlevel < 0 && ruby_env_debug_option(str, len, 0)) return;
#endif
rb_warn("unknown argument for --debug: `%.*s'", len, str);
rb_warn("debug features are [%.*s].", (int)strlen(list), list);
}
static void
dump_option(const char *str, int len, void *arg)
{
static const char list[] = EACH_DUMPS(LITERAL_NAME_ELEMENT, ", ");
#define SET_WHEN_DUMP(bit) SET_WHEN(#bit, DUMP_BIT(bit), str, len)
EACH_DUMPS(SET_WHEN_DUMP, ;);
rb_warn("don't know how to dump `%.*s',", len, str);
rb_warn("but only [%.*s].", (int)strlen(list), list);
}
static void
set_option_encoding_once(const char *type, VALUE *name, const char *e, long elen)
{
VALUE ename;
if (!elen) elen = strlen(e);
ename = rb_str_new(e, elen);
if (*name &&
rb_funcall(ename, rb_intern("casecmp"), 1, *name) != INT2FIX(0)) {
rb_raise(rb_eRuntimeError,
"%s already set to %"PRIsVALUE, type, *name);
}
*name = ename;
}
#define set_internal_encoding_once(opt, e, elen) \
set_option_encoding_once("default_internal", &(opt)->intern.enc.name, (e), (elen))
#define set_external_encoding_once(opt, e, elen) \
set_option_encoding_once("default_external", &(opt)->ext.enc.name, (e), (elen))
#define set_source_encoding_once(opt, e, elen) \
set_option_encoding_once("source", &(opt)->src.enc.name, (e), (elen))
#if USE_MJIT
static void
setup_mjit_options(const char *s, struct mjit_options *mjit_opt)
{
if (*s == 0) return;
else if (strcmp(s, "-warnings") == 0) {
mjit_opt->warnings = 1;
}
else if (strcmp(s, "-debug") == 0) {
mjit_opt->debug = 1;
}
else if (strcmp(s, "-wait") == 0) {
mjit_opt->wait = 1;
}
else if (strcmp(s, "-save-temps") == 0) {
mjit_opt->save_temps = 1;
}
else if (strncmp(s, "-verbose=", 9) == 0) {
mjit_opt->verbose = atoi(s + 9);
}
else if (strncmp(s, "-max-cache=", 11) == 0) {
mjit_opt->max_cache_size = atoi(s + 11);
}
else if (strncmp(s, "-min-calls=", 11) == 0) {
mjit_opt->min_calls = atoi(s + 11);
}
else {
rb_raise(rb_eRuntimeError,
"invalid MJIT option `%s' (--help will show valid MJIT options)", s + 1);
}
}
#endif
static long
proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt)
{
long n, argc0 = argc;
const char *s;
int warning = opt->warning;
if (argc <= 0 || !argv)
return 0;
for (argc--, argv++; argc > 0; argc--, argv++) {
const char *const arg = argv[0];
if (!arg || arg[0] != '-' || !arg[1])
break;
s = arg + 1;
reswitch:
switch (*s) {
case 'a':
if (envopt) goto noenvopt;
opt->do_split = TRUE;
s++;
goto reswitch;
case 'p':
if (envopt) goto noenvopt;
opt->do_print = TRUE;
/* through */
case 'n':
if (envopt) goto noenvopt;
opt->do_loop = TRUE;
s++;
goto reswitch;
case 'd':
ruby_debug = Qtrue;
ruby_verbose = Qtrue;
s++;
goto reswitch;
case 'y':
if (envopt) goto noenvopt;
opt->dump |= DUMP_BIT(yydebug);
s++;
goto reswitch;
case 'v':
if (opt->verbose) {
s++;
goto reswitch;
}
opt->dump |= DUMP_BIT(version_v);
opt->verbose = 1;
case 'w':
if (!opt->warning) {
warning = 1;
ruby_verbose = Qtrue;
}
s++;
goto reswitch;
case 'W':
{
size_t numlen;
int v = 2; /* -W as -W2 */
if (*++s) {
v = scan_oct(s, 1, &numlen);
if (numlen == 0)
v = 1;
s += numlen;
}
if (!opt->warning) {
switch (v) {
case 0:
ruby_verbose = Qnil;
break;
case 1:
ruby_verbose = Qfalse;
break;
default:
ruby_verbose = Qtrue;
break;
}
}
warning = 1;
}
goto reswitch;
case 'c':
if (envopt) goto noenvopt;
opt->dump |= DUMP_BIT(syntax);
s++;
goto reswitch;
case 's':
if (envopt) goto noenvopt;
forbid_setid("-s");
if (!opt->sflag) opt->sflag = 1;
s++;
goto reswitch;
case 'h':
if (envopt) goto noenvopt;
opt->dump |= DUMP_BIT(usage);
goto switch_end;
case 'l':
if (envopt) goto noenvopt;
opt->do_line = TRUE;
rb_output_rs = rb_rs;
s++;
goto reswitch;
case 'S':
if (envopt) goto noenvopt;
forbid_setid("-S");
opt->do_search = TRUE;
s++;
goto reswitch;
case 'e':
if (envopt) goto noenvopt;
forbid_setid("-e");
if (!*++s) {
if (!--argc)
rb_raise(rb_eRuntimeError, "no code specified for -e");
s = *++argv;
}
if (!opt->e_script) {
opt->e_script = rb_str_new(0, 0);
if (opt->script == 0)
opt->script = "-e";
}
rb_str_cat2(opt->e_script, s);
rb_str_cat2(opt->e_script, "\n");
break;
case 'r':
forbid_setid("-r");
if (*++s) {
add_modules(&opt->req_list, s);
}
else if (argc > 1) {
add_modules(&opt->req_list, argv[1]);
argc--, argv++;
}
break;
case 'i':
if (envopt) goto noenvopt;
forbid_setid("-i");
ruby_set_inplace_mode(s + 1);
break;
case 'x':
if (envopt) goto noenvopt;
forbid_setid("-x");
opt->xflag = TRUE;
s++;
if (*s && chdir(s) < 0) {
rb_fatal("Can't chdir to %s", s);
}
break;
case 'C':
case 'X':
if (envopt) goto noenvopt;
if (!*++s && (!--argc || !(s = *++argv) || !*s)) {
rb_fatal("Can't chdir");
}
if (chdir(s) < 0) {
rb_fatal("Can't chdir to %s", s);
}
break;
case 'F':
if (envopt) goto noenvopt;
if (*++s) {
rb_fs = rb_reg_new(s, strlen(s), 0);
}
break;
case 'E':
if (!*++s && (!--argc || !(s = *++argv))) {
rb_raise(rb_eRuntimeError, "missing argument for -E");
}
goto encoding;
case 'U':
set_internal_encoding_once(opt, "UTF-8", 0);
++s;
goto reswitch;
case 'K':
if (*++s) {
const char *enc_name = 0;
switch (*s) {
case 'E': case 'e':
enc_name = "EUC-JP";
break;
case 'S': case 's':
enc_name = "Windows-31J";
break;
case 'U': case 'u':
enc_name = "UTF-8";
break;
case 'N': case 'n': case 'A': case 'a':
enc_name = "ASCII-8BIT";
break;
}
if (enc_name) {
opt->src.enc.name = rb_str_new2(enc_name);
if (!opt->ext.enc.name)
opt->ext.enc.name = opt->src.enc.name;
}
s++;
}
goto reswitch;
case 'T':
{
size_t numlen;
int v = 1;
if (*++s) {
v = scan_oct(s, 2, &numlen);
if (numlen == 0)
v = 1;
s += numlen;
}
}
rb_warn("ruby -T will be removed in Ruby 3.0");
goto reswitch;
case 'I':
forbid_setid("-I");
if (*++s)
ruby_incpush_expand(s);
else if (argc > 1) {
ruby_incpush_expand(argv[1]);
argc--, argv++;
}
break;
case '0':
if (envopt) goto noenvopt;
{
size_t numlen;
int v;
char c;
v = scan_oct(s, 4, &numlen);
s += numlen;
if (v > 0377)
rb_rs = Qnil;
else if (v == 0 && numlen >= 2) {
rb_rs = rb_str_new2("");
}
else {
c = v & 0xff;
rb_rs = rb_str_new(&c, 1);
}
}
goto reswitch;
case '-':
if (!s[1] || (s[1] == '\r' && !s[2])) {
argc--, argv++;
goto switch_end;
}
s++;
# define is_option_end(c, allow_hyphen) \
(!(c) || ((allow_hyphen) && (c) == '-') || (c) == '=')
# define check_envopt(name, allow_envopt) \
(((allow_envopt) || !envopt) ? (void)0 : \
rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --" name))
# define need_argument(name, s, needs_arg, next_arg) \
((*(s) ? !*++(s) : (next_arg) && (!argc || !((s) = argv[1]) || (--argc, ++argv, 0))) && (needs_arg) ? \
rb_raise(rb_eRuntimeError, "missing argument for --" name) \
: (void)0)
# define is_option_with_arg(name, allow_hyphen, allow_envopt) \
is_option_with_optarg(name, allow_hyphen, allow_envopt, Qtrue, Qtrue)
# define is_option_with_optarg(name, allow_hyphen, allow_envopt, needs_arg, next_arg) \
(strncmp((name), s, n = sizeof(name) - 1) == 0 && is_option_end(s[n], (allow_hyphen)) ? \
(check_envopt(name, (allow_envopt)), s += n, \
need_argument(name, s, needs_arg, next_arg), 1) : 0)
if (strcmp("copyright", s) == 0) {
if (envopt) goto noenvopt_long;
opt->dump |= DUMP_BIT(copyright);
}
else if (is_option_with_optarg("debug", Qtrue, Qtrue, Qfalse, Qfalse)) {
if (s && *s) {
ruby_each_words(s, debug_option, &opt->features);
}
else {
ruby_debug = Qtrue;
ruby_verbose = Qtrue;
}
}
else if (is_option_with_arg("enable", Qtrue, Qtrue)) {
ruby_each_words(s, enable_option, &opt->features);
}
else if (is_option_with_arg("disable", Qtrue, Qtrue)) {
ruby_each_words(s, disable_option, &opt->features);
}
else if (is_option_with_arg("encoding", Qfalse, Qtrue)) {
char *p;
encoding:
do {
# define set_encoding_part(type) \
if (!(p = strchr(s, ':'))) { \
set_##type##_encoding_once(opt, s, 0); \
break; \
} \
else if (p > s) { \
set_##type##_encoding_once(opt, s, p-s); \
}
set_encoding_part(external);
if (!*(s = ++p)) break;
set_encoding_part(internal);
if (!*(s = ++p)) break;
#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
set_encoding_part(source);
if (!*(s = ++p)) break;
#endif
rb_raise(rb_eRuntimeError, "extra argument for %s: %s",
(arg[1] == '-' ? "--encoding" : "-E"), s);
# undef set_encoding_part
} while (0);
}
else if (is_option_with_arg("internal-encoding", Qfalse, Qtrue)) {
set_internal_encoding_once(opt, s, 0);
}
else if (is_option_with_arg("external-encoding", Qfalse, Qtrue)) {
set_external_encoding_once(opt, s, 0);
}
#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
else if (is_option_with_arg("source-encoding", Qfalse, Qtrue)) {
set_source_encoding_once(opt, s, 0);
}
#endif
else if (strcmp("version", s) == 0) {
if (envopt) goto noenvopt_long;
opt->dump |= DUMP_BIT(version);
}
else if (strcmp("verbose", s) == 0) {
opt->verbose = 1;
ruby_verbose = Qtrue;
}
else if (strncmp("jit", s, 3) == 0) {
#if USE_MJIT
FEATURE_SET(opt->features, FEATURE_BIT(jit));
setup_mjit_options(s + 3, &opt->mjit);
#else
rb_warn("MJIT support is disabled.");
#endif
}
else if (strcmp("yydebug", s) == 0) {
if (envopt) goto noenvopt_long;
opt->dump |= DUMP_BIT(yydebug);
}
else if (is_option_with_arg("dump", Qfalse, Qfalse)) {
ruby_each_words(s, dump_option, &opt->dump);
}
else if (strcmp("help", s) == 0) {
if (envopt) goto noenvopt_long;
opt->dump |= DUMP_BIT(help);
goto switch_end;
}
else {
rb_raise(rb_eRuntimeError,
"invalid option --%s (-h will show valid options)", s);
}
break;
case '\r':
if (!s[1])
break;
default:
{
rb_raise(rb_eRuntimeError,
"invalid option -%c (-h will show valid options)",
(int)(unsigned char)*s);
}
goto switch_end;
noenvopt:
/* "EIdvwWrKU" only */
rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: -%c", *s);
break;
noenvopt_long:
rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --%s", s);
break;
case 0:
break;
# undef is_option_end
# undef check_envopt
# undef need_argument
# undef is_option_with_arg
# undef is_option_with_optarg
}
}
switch_end:
if (warning) opt->warning = warning;
return argc0 - argc;
}
static void
ruby_init_prelude(void)
{
Init_prelude();
rb_const_remove(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"));
}
static int
opt_enc_index(VALUE enc_name)
{
const char *s = RSTRING_PTR(enc_name);
int i = rb_enc_find_index(s);
if (i < 0) {
rb_raise(rb_eRuntimeError, "unknown encoding name - %s", s);
}
else if (rb_enc_dummy_p(rb_enc_from_index(i))) {
rb_raise(rb_eRuntimeError, "dummy encoding is not acceptable - %s ", s);
}
return i;
}
#define rb_progname (GET_VM()->progname)
#define rb_orig_progname (GET_VM()->orig_progname)
VALUE rb_argv0;
VALUE rb_e_script;
static VALUE
false_value(ID _x, VALUE *_y)
{
return Qfalse;
}
static VALUE
true_value(ID _x, VALUE *_y)
{
return Qtrue;
}
#define rb_define_readonly_boolean(name, val) \
rb_define_virtual_variable((name), (val) ? true_value : false_value, 0)
static VALUE
uscore_get(void)
{
VALUE line;
line = rb_lastline_get();
if (!RB_TYPE_P(line, T_STRING)) {
rb_raise(rb_eTypeError, "$_ value need to be String (%s given)",
NIL_P(line) ? "nil" : rb_obj_classname(line));
}
return line;
}
/*
* call-seq:
* sub(pattern, replacement) -> $_
* sub(pattern) {|...| block } -> $_
*
* Equivalent to <code>$_.sub(<i>args</i>)</code>, except that
* <code>$_</code> will be updated if substitution occurs.
* Available only when -p/-n command line option specified.
*/
static VALUE
rb_f_sub(int argc, VALUE *argv, VALUE _)
{
VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("sub"), argc, argv);
rb_lastline_set(str);
return str;
}
/*
* call-seq:
* gsub(pattern, replacement) -> $_
* gsub(pattern) {|...| block } -> $_
*
* Equivalent to <code>$_.gsub...</code>, except that <code>$_</code>
* will be updated if substitution occurs.
* Available only when -p/-n command line option specified.
*
*/
static VALUE
rb_f_gsub(int argc, VALUE *argv, VALUE _)
{
VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("gsub"), argc, argv);
rb_lastline_set(str);
return str;
}
/*
* call-seq:
* chop -> $_
*
* Equivalent to <code>($_.dup).chop!</code>, except <code>nil</code>
* is never returned. See String#chop!.
* Available only when -p/-n command line option specified.
*
*/
static VALUE
rb_f_chop(VALUE _)
{
VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chop"), 0, 0);
rb_lastline_set(str);
return str;
}
/*
* call-seq:
* chomp -> $_
* chomp(string) -> $_
*
* Equivalent to <code>$_ = $_.chomp(<em>string</em>)</code>. See
* String#chomp.
* Available only when -p/-n command line option specified.
*
*/
static VALUE
rb_f_chomp(int argc, VALUE *argv, VALUE _)
{
VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chomp"), argc, argv);
rb_lastline_set(str);
return str;
}
static VALUE
process_options(int argc, char **argv, ruby_cmdline_options_t *opt)
{
rb_ast_t *ast = 0;
VALUE parser;
VALUE script_name;
const rb_iseq_t *iseq;
rb_encoding *enc, *lenc;
#if UTF8_PATH
rb_encoding *uenc, *ienc = 0;
#endif
const char *s;
char fbuf[MAXPATHLEN];
int i = (int)proc_options(argc, argv, opt, 0);
unsigned int dump = opt->dump & dump_exit_bits;
if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
const char *const progname =
(argc > 0 && argv && argv[0] ? argv[0] :
origarg.argc > 0 && origarg.argv && origarg.argv[0] ? origarg.argv[0] :
ruby_engine);
usage(progname, (opt->dump & DUMP_BIT(help)));
return Qtrue;
}
argc -= i;
argv += i;
if ((opt->features.set & FEATURE_BIT(rubyopt)) && (s = getenv("RUBYOPT"))) {
VALUE src_enc_name = opt->src.enc.name;
VALUE ext_enc_name = opt->ext.enc.name;
VALUE int_enc_name = opt->intern.enc.name;
ruby_features_t feat = opt->features;
opt->src.enc.name = opt->ext.enc.name = opt->intern.enc.name = 0;
moreswitches(s, opt, 1);
if (src_enc_name)
opt->src.enc.name = src_enc_name;
if (ext_enc_name)
opt->ext.enc.name = ext_enc_name;
if (int_enc_name)
opt->intern.enc.name = int_enc_name;
FEATURE_SET_TO(opt->features, feat.mask, feat.set & feat.mask);
}
if (opt->src.enc.name)
rb_warning("-K is specified; it is for 1.8 compatibility and may cause odd behavior");
#if USE_MJIT
if (opt->features.set & FEATURE_BIT(jit)) {
opt->mjit.on = TRUE; /* set mjit.on for ruby_show_version() API and check to call mjit_init() */
}
#endif
if (opt->dump & (DUMP_BIT(version) | DUMP_BIT(version_v))) {
#if USE_MJIT
mjit_opts.on = opt->mjit.on; /* used by ruby_show_version(). mjit_init() still can't be called here. */
#endif
ruby_show_version();
if (opt->dump & DUMP_BIT(version)) return Qtrue;
}
if (opt->dump & DUMP_BIT(copyright)) {
ruby_show_copyright();
return Qtrue;
}
if (!opt->e_script) {
if (argc <= 0) { /* no more args */
if (opt->verbose)
return Qtrue;
opt->script = "-";
}
else {
opt->script = argv[0];
if (!opt->script || opt->script[0] == '\0') {
opt->script = "-";
}
else if (opt->do_search) {
char *path = getenv("RUBYPATH");
opt->script = 0;
if (path) {
opt->script = dln_find_file_r(argv[0], path, fbuf, sizeof(fbuf));
}
if (!opt->script) {
opt->script = dln_find_file_r(argv[0], getenv(PATH_ENV), fbuf, sizeof(fbuf));
}
if (!opt->script)
opt->script = argv[0];
}
argc--;
argv++;
}
if (opt->script[0] == '-' && !opt->script[1]) {
forbid_setid("program input from stdin");
}
}
opt->script_name = rb_str_new_cstr(opt->script);
opt->script = RSTRING_PTR(opt->script_name);
#if _WIN32
translit_char_bin(RSTRING_PTR(opt->script_name), '\\', '/');
#elif defined DOSISH
translit_char(RSTRING_PTR(opt->script_name), '\\', '/');
#endif
ruby_gc_set_params();
ruby_init_loadpath();
#if USE_MJIT
if (opt->mjit.on)
/* Using TMP_RUBY_PREFIX created by ruby_init_loadpath(). */
mjit_init(&opt->mjit);
#endif
Init_ruby_description();
Init_enc();
lenc = rb_locale_encoding();
rb_enc_associate(rb_progname, lenc);
rb_obj_freeze(rb_progname);
parser = rb_parser_new();
if (opt->dump & DUMP_BIT(yydebug)) {
rb_parser_set_yydebug(parser, Qtrue);
}
if (opt->ext.enc.name != 0) {
opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
}
if (opt->intern.enc.name != 0) {
opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
}
if (opt->src.enc.name != 0) {
opt->src.enc.index = opt_enc_index(opt->src.enc.name);
src_encoding_index = opt->src.enc.index;
}
if (opt->ext.enc.index >= 0) {
enc = rb_enc_from_index(opt->ext.enc.index);
}
else {
enc = lenc;
}
rb_enc_set_default_external(rb_enc_from_encoding(enc));
if (opt->intern.enc.index >= 0) {
enc = rb_enc_from_index(opt->intern.enc.index);
rb_enc_set_default_internal(rb_enc_from_encoding(enc));
opt->intern.enc.index = -1;
#if UTF8_PATH
ienc = enc;
#endif
}
script_name = opt->script_name;
rb_enc_associate(opt->script_name,
IF_UTF8_PATH(uenc = rb_utf8_encoding(), lenc));
#if UTF8_PATH
if (uenc != lenc) {
opt->script_name = str_conv_enc(opt->script_name, uenc, lenc);
opt->script = RSTRING_PTR(opt->script_name);
}
#endif
rb_obj_freeze(opt->script_name);
if (IF_UTF8_PATH(uenc != lenc, 1)) {
long i;
rb_vm_t *vm = GET_VM();
VALUE load_path = vm->load_path;
const ID id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
int modifiable = FALSE;
rb_get_expanded_load_path();
for (i = 0; i < RARRAY_LEN(load_path); ++i) {
VALUE path = RARRAY_AREF(load_path, i);
int mark = rb_attr_get(path, id_initial_load_path_mark) == path;
#if UTF8_PATH
VALUE newpath = rb_str_conv_enc(path, uenc, lenc);
if (newpath == path) continue;
path = newpath;
#else
path = rb_enc_associate(rb_str_dup(path), lenc);
#endif
if (mark) rb_ivar_set(path, id_initial_load_path_mark, path);
if (!modifiable) {
rb_ary_modify(load_path);
modifiable = TRUE;
}
RARRAY_ASET(load_path, i, path);
}
if (modifiable) {
rb_ary_replace(vm->load_path_snapshot, load_path);
}
}
Init_ext(); /* load statically linked extensions before rubygems */
if (opt->features.set & FEATURE_BIT(gems)) {
rb_define_module("Gem");
if (opt->features.set & FEATURE_BIT(did_you_mean)) {
rb_define_module("DidYouMean");
}
}
ruby_init_prelude();
if (opt->features.mask & COMPILATION_FEATURES) {
VALUE option = rb_hash_new();
#define SET_COMPILE_OPTION(h, o, name) \
rb_hash_aset((h), ID2SYM(rb_intern_const(#name)), \
(FEATURE_SET_P(o->features, FEATURE_BIT(name)) ? Qtrue : Qfalse));
SET_COMPILE_OPTION(option, opt, frozen_string_literal);
SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal);
rb_funcallv(rb_cISeq, rb_intern_const("compile_option="), 1, &option);
#undef SET_COMPILE_OPTION
}
ruby_set_argv(argc, argv);
process_sflag(&opt->sflag);
rb_parser_set_context(parser, 0, TRUE);
if (opt->e_script) {
VALUE progname = rb_progname;
rb_encoding *eenc;
if (opt->src.enc.index >= 0) {
eenc = rb_enc_from_index(opt->src.enc.index);
}
else {
eenc = lenc;
#if UTF8_PATH
if (ienc) eenc = ienc;
#endif
}
#if UTF8_PATH
if (eenc != uenc) {
opt->e_script = str_conv_enc(opt->e_script, uenc, eenc);
}
#endif
rb_enc_associate(opt->e_script, eenc);
if (!(opt->dump & ~DUMP_BIT(version_v))) {
ruby_set_script_name(opt->script_name);
require_libraries(&opt->req_list);
}
ruby_set_script_name(progname);
rb_parser_set_options(parser, opt->do_print, opt->do_loop,
opt->do_line, opt->do_split);
ast = rb_parser_compile_string(parser, opt->script, opt->e_script, 1);
}
else {
VALUE f;
f = open_load_file(script_name, &opt->xflag);
ast = load_file(parser, opt->script_name, f, 1, opt);
}
ruby_set_script_name(opt->script_name);
if (dump & DUMP_BIT(yydebug)) {
dump &= ~DUMP_BIT(yydebug);
if (!dump) return Qtrue;
}
if (opt->ext.enc.index >= 0) {
enc = rb_enc_from_index(opt->ext.enc.index);
}
else {
enc = lenc;
}
rb_enc_set_default_external(rb_enc_from_encoding(enc));
if (opt->intern.enc.index >= 0) {
/* Set in the shebang line */
enc = rb_enc_from_index(opt->intern.enc.index);
rb_enc_set_default_internal(rb_enc_from_encoding(enc));
}
else if (!rb_default_internal_encoding())
/* Freeze default_internal */
rb_enc_set_default_internal(Qnil);
rb_stdio_set_default_encoding();
if (!ast->body.root) {
rb_ast_dispose(ast);
return Qfalse;
}
process_sflag(&opt->sflag);
opt->xflag = 0;
if (dump & DUMP_BIT(syntax)) {
printf("Syntax OK\n");
dump &= ~DUMP_BIT(syntax);
if (!dump) return Qtrue;
}
if (opt->do_loop) {
rb_define_global_function("sub", rb_f_sub, -1);
rb_define_global_function("gsub", rb_f_gsub, -1);
rb_define_global_function("chop", rb_f_chop, 0);
rb_define_global_function("chomp", rb_f_chomp, -1);
}
if (dump & (DUMP_BIT(parsetree)|DUMP_BIT(parsetree_with_comment))) {
rb_io_write(rb_stdout, rb_parser_dump_tree(ast->body.root, dump & DUMP_BIT(parsetree_with_comment)));
rb_io_flush(rb_stdout);
dump &= ~DUMP_BIT(parsetree)&~DUMP_BIT(parsetree_with_comment);
if (!dump) {
rb_ast_dispose(ast);
return Qtrue;
}
}
{
VALUE path = Qnil;
if (!opt->e_script && strcmp(opt->script, "-")) {
path = rb_realpath_internal(Qnil, script_name, 1);
#if UTF8_PATH
if (uenc != lenc) {
path = str_conv_enc(path, uenc, lenc);
}
#endif
if (!ENCODING_GET(path)) { /* ASCII-8BIT */
rb_enc_copy(path, opt->script_name);
}
}
rb_binding_t *toplevel_binding;
GetBindingPtr(rb_const_get(rb_cObject, rb_intern("TOPLEVEL_BINDING")),
toplevel_binding);
const struct rb_block *base_block = toplevel_context(toplevel_binding);
iseq = rb_iseq_new_main(&ast->body, opt->script_name, path, vm_block_iseq(base_block));
rb_ast_dispose(ast);
}
if (dump & DUMP_BIT(insns)) {
rb_io_write(rb_stdout, rb_iseq_disasm((const rb_iseq_t *)iseq));
rb_io_flush(rb_stdout);
dump &= ~DUMP_BIT(insns);
if (!dump) return Qtrue;
}
if (opt->dump & dump_exit_bits) return Qtrue;
rb_define_readonly_boolean("$-p", opt->do_print);
rb_define_readonly_boolean("$-l", opt->do_line);
rb_define_readonly_boolean("$-a", opt->do_split);
if ((rb_e_script = opt->e_script) != 0) {
rb_gc_register_mark_object(opt->e_script);
}
{
rb_execution_context_t *ec = GET_EC();
if (opt->e_script) {
/* -e */
rb_exec_event_hook_script_compiled(ec, iseq, opt->e_script);
}
else {
/* file */
rb_exec_event_hook_script_compiled(ec, iseq, Qnil);
}
}
return (VALUE)iseq;
}
#ifndef DOSISH
static void
warn_cr_in_shebang(const char *str, long len)
{
if (str[len-1] == '\n' && str[len-2] == '\r') {
rb_warn("shebang line ending with \\r may cause problems");
}
}
#else
#define warn_cr_in_shebang(str, len) (void)0
#endif
struct load_file_arg {
VALUE parser;
VALUE fname;
int script;
ruby_cmdline_options_t *opt;
VALUE f;
};
static VALUE
load_file_internal(VALUE argp_v)
{
struct load_file_arg *argp = (struct load_file_arg *)argp_v;
VALUE parser = argp->parser;
VALUE orig_fname = argp->fname;
int script = argp->script;
ruby_cmdline_options_t *opt = argp->opt;
VALUE f = argp->f;
int line_start = 1;
rb_ast_t *ast = 0;
rb_encoding *enc;
ID set_encoding;
CONST_ID(set_encoding, "set_encoding");
if (script) {
VALUE c = 1; /* something not nil */
VALUE line;
char *p, *str;
long len;
int no_src_enc = !opt->src.enc.name;
int no_ext_enc = !opt->ext.enc.name;
int no_int_enc = !opt->intern.enc.name;
enc = rb_ascii8bit_encoding();
rb_funcall(f, set_encoding, 1, rb_enc_from_encoding(enc));
if (opt->xflag) {
line_start--;
search_shebang:
while (!NIL_P(line = rb_io_gets(f))) {
line_start++;
RSTRING_GETMEM(line, str, len);
if (len > 2 && str[0] == '#' && str[1] == '!') {
if (line_start == 1) warn_cr_in_shebang(str, len);
if ((p = strstr(str+2, ruby_engine)) != 0) {
goto start_read;
}
}
}
rb_loaderror("no Ruby script found in input");
}
c = rb_io_getbyte(f);
if (c == INT2FIX('#')) {
c = rb_io_getbyte(f);
if (c == INT2FIX('!') && !NIL_P(line = rb_io_gets(f))) {
RSTRING_GETMEM(line, str, len);
warn_cr_in_shebang(str, len);
if ((p = strstr(str, ruby_engine)) == 0) {
/* not ruby script, assume -x flag */
goto search_shebang;
}
start_read:
str += len - 1;
if (*str == '\n') *str-- = '\0';
if (*str == '\r') *str-- = '\0';
/* ruby_engine should not contain a space */
if ((p = strstr(p, " -")) != 0) {
opt->warning = 0;
moreswitches(p + 1, opt, 0);
}
/* push back shebang for pragma may exist in next line */
rb_io_ungetbyte(f, rb_str_new2("!\n"));
}
else if (!NIL_P(c)) {
rb_io_ungetbyte(f, c);
}
rb_io_ungetbyte(f, INT2FIX('#'));
if (no_src_enc && opt->src.enc.name) {
opt->src.enc.index = opt_enc_index(opt->src.enc.name);
src_encoding_index = opt->src.enc.index;
}
if (no_ext_enc && opt->ext.enc.name) {
opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
}
if (no_int_enc && opt->intern.enc.name) {
opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
}
}
else if (!NIL_P(c)) {
rb_io_ungetbyte(f, c);
}
if (NIL_P(c)) {
argp->f = f = Qnil;
}
if (!(opt->dump & ~DUMP_BIT(version_v))) {
ruby_set_script_name(opt->script_name);
require_libraries(&opt->req_list); /* Why here? unnatural */
}
}
if (opt->src.enc.index >= 0) {
enc = rb_enc_from_index(opt->src.enc.index);
}
else if (f == rb_stdin) {
enc = rb_locale_encoding();
}
else {
enc = rb_utf8_encoding();
}
rb_parser_set_options(parser, opt->do_print, opt->do_loop,
opt->do_line, opt->do_split);
if (NIL_P(f)) {
f = rb_str_new(0, 0);
rb_enc_associate(f, enc);
return (VALUE)rb_parser_compile_string_path(parser, orig_fname, f, line_start);
}
rb_funcall(f, set_encoding, 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-"));
ast = rb_parser_compile_file_path(parser, orig_fname, f, line_start);
rb_funcall(f, set_encoding, 1, rb_parser_encoding(parser));
if (script && rb_parser_end_seen_p(parser)) {
/*
* DATA is a File that contains the data section of the executed file.
* To create a data section use <tt>__END__</tt>:
*
* $ cat t.rb
* puts DATA.gets
* __END__
* hello world!
*
* $ ruby t.rb
* hello world!
*/
rb_define_global_const("DATA", f);
argp->f = Qnil;
}
return (VALUE)ast;
}
static VALUE
open_load_file(VALUE fname_v, int *xflag)
{
const char *fname = (fname_v = rb_str_encode_ospath(fname_v),
StringValueCStr(fname_v));
long flen = RSTRING_LEN(fname_v);
VALUE f;
int e;
if (flen == 1 && fname[0] == '-') {
f = rb_stdin;
}
else {
int fd;
/* open(2) may block if fname is point to FIFO and it's empty. Let's
use O_NONBLOCK. */
#if defined O_NONBLOCK && HAVE_FCNTL && !(O_NONBLOCK & O_ACCMODE)
/* TODO: fix conflicting O_NONBLOCK in ruby/win32.h */
# define MODE_TO_LOAD (O_RDONLY | O_NONBLOCK)
#elif defined O_NDELAY && HAVE_FCNTL && !(O_NDELAY & O_ACCMODE)
# define MODE_TO_LOAD (O_RDONLY | O_NDELAY)
#else
# define MODE_TO_LOAD (O_RDONLY)
#endif
int mode = MODE_TO_LOAD;
#if defined DOSISH || defined __CYGWIN__
# define isdirsep(x) ((x) == '/' || (x) == '\\')
{
static const char exeext[] = ".exe";
enum {extlen = sizeof(exeext)-1};
if (flen > extlen && !isdirsep(fname[flen-extlen-1]) &&
STRNCASECMP(fname+flen-extlen, exeext, extlen) == 0) {
mode |= O_BINARY;
*xflag = 1;
}
}
#endif
if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
e = errno;
if (!rb_gc_for_fd(e)) {
rb_load_fail(fname_v, strerror(e));
}
if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
rb_load_fail(fname_v, strerror(errno));
}
}
rb_update_max_fd(fd);
#if defined HAVE_FCNTL && MODE_TO_LOAD != O_RDONLY
/* disabling O_NONBLOCK */
if (fcntl(fd, F_SETFL, 0) < 0) {
e = errno;
(void)close(fd);
rb_load_fail(fname_v, strerror(e));
}
#endif
e = ruby_is_fd_loadable(fd);
if (!e) {
e = errno;
(void)close(fd);
rb_load_fail(fname_v, strerror(e));
}
f = rb_io_fdopen(fd, mode, fname);
if (e < 0) {
/*
We need to wait if FIFO is empty. It's FIFO's semantics.
rb_thread_wait_fd() release GVL. So, it's safe.
*/
rb_thread_wait_fd(fd);
}
}
return f;
}
static VALUE
restore_load_file(VALUE arg)
{
struct load_file_arg *argp = (struct load_file_arg *)arg;
VALUE f = argp->f;
if (!NIL_P(f) && f != rb_stdin) {
rb_io_close(f);
}
return Qnil;
}
static rb_ast_t *
load_file(VALUE parser, VALUE fname, VALUE f, int script, ruby_cmdline_options_t *opt)
{
struct load_file_arg arg;
arg.parser = parser;
arg.fname = fname;
arg.script = script;
arg.opt = opt;
arg.f = f;
return (rb_ast_t *)rb_ensure(load_file_internal, (VALUE)&arg,
restore_load_file, (VALUE)&arg);
}
void *
rb_load_file(const char *fname)
{
VALUE fname_v = rb_str_new_cstr(fname);
return rb_load_file_str(fname_v);
}
void *
rb_load_file_str(VALUE fname_v)
{
return rb_parser_load_file(rb_parser_new(), fname_v);
}
void *
rb_parser_load_file(VALUE parser, VALUE fname_v)
{
ruby_cmdline_options_t opt;
VALUE f = open_load_file(fname_v, &cmdline_options_init(&opt)->xflag);
return load_file(parser, fname_v, f, 0, &opt);
}
/*
* call-seq:
* Process.argv0 -> frozen_string
*
* Returns the name of the script being executed. The value is not
* affected by assigning a new value to $0.
*
* This method first appeared in Ruby 2.1 to serve as a global
* variable free means to get the script name.
*/
static VALUE
proc_argv0(VALUE process)
{
return rb_orig_progname;
}
static VALUE ruby_setproctitle(VALUE title);
/*
* call-seq:
* Process.setproctitle(string) -> string
*
* Sets the process title that appears on the ps(1) command. Not
* necessarily effective on all platforms. No exception will be
* raised regardless of the result, nor will NotImplementedError be
* raised even if the platform does not support the feature.
*
* Calling this method does not affect the value of $0.
*
* Process.setproctitle('myapp: worker #%d' % worker_id)
*
* This method first appeared in Ruby 2.1 to serve as a global
* variable free means to change the process title.
*/
static VALUE
proc_setproctitle(VALUE process, VALUE title)
{
return ruby_setproctitle(title);
}
static VALUE
ruby_setproctitle(VALUE title)
{
const char *ptr = StringValueCStr(title);
setproctitle("%.*s", RSTRING_LENINT(title), ptr);
return title;
}
static void
set_arg0(VALUE val, ID id, VALUE *_)
{
if (origarg.argv == 0)
rb_raise(rb_eRuntimeError, "$0 not initialized");
rb_progname = rb_str_new_frozen(ruby_setproctitle(val));
}
static inline VALUE
external_str_new_cstr(const char *p)
{
#if UTF8_PATH
VALUE str = rb_utf8_str_new_cstr(p);
str = str_conv_enc(str, NULL, rb_default_external_encoding());
return str;
#else
return rb_external_str_new_cstr(p);
#endif
}
/*! Sets the current script name to this value.
*
* This is similar to <code>$0 = name</code> in Ruby level but also affects
* <code>Method#location</code> and others.
*/
void
ruby_script(const char *name)
{
if (name) {
rb_orig_progname = rb_progname = external_str_new_cstr(name);
rb_vm_set_progname(rb_progname);
}
}
/*! Sets the current script name to this value.
*
* Same as ruby_script() but accepts a VALUE.
*/
void
ruby_set_script_name(VALUE name)
{
rb_orig_progname = rb_progname = rb_str_dup(name);
rb_vm_set_progname(rb_progname);
}
static void
init_ids(ruby_cmdline_options_t *opt)
{
rb_uid_t uid = getuid();
rb_uid_t euid = geteuid();
rb_gid_t gid = getgid();
rb_gid_t egid = getegid();
if (uid != euid) opt->setids |= 1;
if (egid != gid) opt->setids |= 2;
}
#undef forbid_setid
static void
forbid_setid(const char *s, const ruby_cmdline_options_t *opt)
{
if (opt->setids & 1)
rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s);
if (opt->setids & 2)
rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s);
}
static void
verbose_setter(VALUE val, ID id, VALUE *variable)
{
*variable = RTEST(val) ? Qtrue : val;
}
static VALUE
opt_W_getter(ID id, VALUE *variable)
{
switch (*variable) {
case Qnil:
return INT2FIX(0);
case Qfalse:
return INT2FIX(1);
case Qtrue:
return INT2FIX(2);
default:
return Qnil;
}
}
/*! Defines built-in variables */
void
ruby_prog_init(void)
{
rb_define_hooked_variable("$VERBOSE", &ruby_verbose, 0, verbose_setter);
rb_define_hooked_variable("$-v", &ruby_verbose, 0, verbose_setter);
rb_define_hooked_variable("$-w", &ruby_verbose, 0, verbose_setter);
rb_define_hooked_variable("$-W", &ruby_verbose, opt_W_getter, rb_gvar_readonly_setter);
rb_define_variable("$DEBUG", &ruby_debug);
rb_define_variable("$-d", &ruby_debug);
rb_define_hooked_variable("$0", &rb_progname, 0, set_arg0);
rb_define_hooked_variable("$PROGRAM_NAME", &rb_progname, 0, set_arg0);
rb_define_module_function(rb_mProcess, "argv0", proc_argv0, 0);
rb_define_module_function(rb_mProcess, "setproctitle", proc_setproctitle, 1);
/*
* ARGV contains the command line arguments used to run ruby.
*
* A library like OptionParser can be used to process command-line
* arguments.
*/
rb_define_global_const("ARGV", rb_argv);
}
void
ruby_set_argv(int argc, char **argv)
{
int i;
VALUE av = rb_argv;
#if defined(USE_DLN_A_OUT)
if (origarg.argc > 0 && origarg.argv)
dln_argv0 = origarg.argv[0];
else if (argc > 0 && argv)
dln_argv0 = argv[0];
#endif
rb_ary_clear(av);
for (i = 0; i < argc; i++) {
VALUE arg = external_str_new_cstr(argv[i]);
OBJ_FREEZE(arg);
rb_ary_push(av, arg);
}
}
void *
ruby_process_options(int argc, char **argv)
{
ruby_cmdline_options_t opt;
VALUE iseq;
const char *script_name = (argc > 0 && argv[0]) ? argv[0] : ruby_engine;
if (!origarg.argv || origarg.argc <= 0) {
origarg.argc = argc;
origarg.argv = argv;
}
ruby_script(script_name); /* for the time being */
rb_argv0 = rb_str_new4(rb_progname);
rb_gc_register_mark_object(rb_argv0);
iseq = process_options(argc, argv, cmdline_options_init(&opt));
#ifndef HAVE_SETPROCTITLE
ruby_init_setproctitle(argc, argv);
#endif
return (void*)(struct RData*)iseq;
}
static void
fill_standard_fds(void)
{
int f0, f1, f2, fds[2];
struct stat buf;
f0 = fstat(0, &buf) == -1 && errno == EBADF;
f1 = fstat(1, &buf) == -1 && errno == EBADF;
f2 = fstat(2, &buf) == -1 && errno == EBADF;
if (f0) {
if (pipe(fds) == 0) {
close(fds[1]);
if (fds[0] != 0) {
dup2(fds[0], 0);
close(fds[0]);
}
}
}
if (f1 || f2) {
if (pipe(fds) == 0) {
close(fds[0]);
if (f1 && fds[1] != 1)
dup2(fds[1], 1);
if (f2 && fds[1] != 2)
dup2(fds[1], 2);
if (fds[1] != 1 && fds[1] != 2)
close(fds[1]);
}
}
}
/*! Initializes the process for libruby.
*
* This function assumes this process is ruby(1) and it has just started.
* Usually programs that embed CRuby interpreter may not call this function,
* and may do their own initialization.
* argc and argv cannot be NULL.
*/
void
ruby_sysinit(int *argc, char ***argv)
{
#if defined(_WIN32)
rb_w32_sysinit(argc, argv);
#endif
if (*argc >= 0 && *argv) {
origarg.argc = *argc;
origarg.argv = *argv;
#if defined(USE_DLN_A_OUT)
dln_argv0 = origarg.argv[0];
#endif
}
fill_standard_fds();
}
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