/********************************************************************** 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 **********************************************************************/ #include "ruby/internal/config.h" #include #include #include #ifdef __CYGWIN__ # include # include #endif #ifdef __hpux # include #endif #if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR) # include #endif #ifdef HAVE_UNISTD_H # include #endif #if defined(HAVE_FCNTL_H) # include #elif defined(HAVE_SYS_FCNTL_H) # include #endif #ifdef HAVE_SYS_PARAM_H # include #endif #include "dln.h" #include "eval_intern.h" #include "internal.h" #include "internal/error.h" #include "internal/file.h" #include "internal/inits.h" #include "internal/io.h" #include "internal/load.h" #include "internal/loadpath.h" #include "internal/missing.h" #include "internal/object.h" #include "internal/parse.h" #include "internal/process.h" #include "internal/variable.h" #include "mjit.h" #include "yjit.h" #include "ruby/encoding.h" #include "ruby/thread.h" #include "ruby/util.h" #include "ruby/version.h" #include "ruby/internal/error.h" #ifndef MAXPATHLEN # define MAXPATHLEN 1024 #endif #ifndef O_ACCMODE # define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR) #endif 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 void rb_warning_category_update(unsigned int mask, unsigned int bits); #define COMMA , #define FEATURE_BIT(bit) (1U << feature_##bit) #define EACH_FEATURES(X, SEP) \ X(gems) \ SEP \ X(error_highlight) \ SEP \ X(did_you_mean) \ SEP \ X(rubyopt) \ SEP \ X(frozen_string_literal) \ SEP \ X(jit) \ SEP \ X(yjit) /* 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) \ SEP \ X(insns_without_opt) \ /* 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) | DUMP_BIT(insns_without_opt)) }; 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_RESTORE(feat, save) FEATURE_SET_TO(feat, (save).mask, (save).set & (save).mask) #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; ruby_features_t warn; unsigned int dump; #if USE_MJIT struct mjit_options mjit; #endif struct rb_yjit_options yjit; 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) & ~FEATURE_BIT(yjit) ) }; 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); #elif defined(YJIT_FORCE_ENABLE) opt->features.set |= FEATURE_BIT(yjit); #endif if (getenv("RUBY_YJIT_ENABLE")) { opt->features.set |= FEATURE_BIT(yjit); } 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 const char esc_standout[] = "\n\033[1;7m"; static const char esc_bold[] = "\033[1m"; static const char esc_reset[] = "\033[0m"; static const char esc_none[] = ""; static void show_usage_line(const char *str, unsigned int namelen, unsigned int secondlen, int help, int highlight, unsigned int w) { const char *sb = highlight ? esc_bold : esc_none; const char *se = highlight ? esc_reset : esc_none; const int wrap = help && namelen + secondlen - 1 > w; printf(" %s%.*s%-*.*s%s%-*s%s\n", sb, namelen-1, str, (wrap ? 0 : w - namelen + 1), (help ? secondlen-1 : 0), str + namelen, se, (wrap ? w + 3 : 0), (wrap ? "\n" : ""), str + namelen + secondlen); } static void usage(const char *name, int help, int highlight, int columns) { /* 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|:category]", "", "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("--yjit", "", "enable in-process JIT compiler (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={jit|rubyopt|...}[,...]", ", --disable={jit|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("--backtrace-limit=num", "", "limit the maximum length of backtrace"), 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("insns_without_opt", "", "instruction sequences compiled with no optimization"), 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 (only for debugging, default: "DEFAULT_RUBYGEMS_ENABLED")"), M("error_highlight", "", "error_highlight (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)"), M("yjit", "", "in-process JIT compiler (default: disabled)"), }; static const struct message warn_categories[] = { M("deprecated", "", "deprecated features"), M("experimental", "", "experimental features"), }; static const struct message mjit_options[] = { M("--jit-warnings", "", "Enable printing JIT warnings"), M("--jit-debug", "", "Enable JIT debugging (very slow), or add cflags if specified"), M("--jit-wait", "", "Wait until JIT compilation finishes every time (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)"), }; static const struct message yjit_options[] = { #if YJIT_STATS M("--yjit-stats", "", "Enable collecting YJIT statistics"), #endif M("--yjit-exec-mem-size=num", "", "Size of executable memory block in MiB (default: 256)"), M("--yjit-call-threshold", "", "Number of calls to trigger JIT (default: 10)"), M("--yjit-max-versions", "", "Maximum number of versions per basic block (default: 4)"), M("--yjit-greedy-versioning", "", "Greedy versioning mode (default: disabled)"), }; int i; const char *sb = highlight ? esc_standout+1 : esc_none; const char *se = highlight ? esc_reset : esc_none; const int num = numberof(usage_msg) - (help ? 1 : 0); unsigned int w = (columns > 80 ? (columns - 79) / 2 : 0) + 16; #define SHOW(m) show_usage_line((m).str, (m).namelen, (m).secondlen, help, highlight, w) printf("%sUsage:%s %s [switches] [--] [programfile] [arguments]\n", sb, se, name); for (i = 0; i < num; ++i) SHOW(usage_msg[i]); if (!help) return; if (highlight) sb = esc_standout; for (i = 0; i < numberof(help_msg); ++i) SHOW(help_msg[i]); printf("%s""Dump List:%s\n", sb, se); for (i = 0; i < numberof(dumps); ++i) SHOW(dumps[i]); printf("%s""Features:%s\n", sb, se); for (i = 0; i < numberof(features); ++i) SHOW(features[i]); printf("%s""Warning categories:%s\n", sb, se); for (i = 0; i < numberof(warn_categories); ++i) SHOW(warn_categories[i]); printf("%s""MJIT options (experimental):%s\n", sb, se); for (i = 0; i < numberof(mjit_options); ++i) SHOW(mjit_options[i]); printf("%s""YJIT options (experimental):%s\n", sb, se); for (i = 0; i < numberof(yjit_options); ++i) SHOW(yjit_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, ret; #if USE_RVARGC len = 32; #else len = RSTRING_EMBED_LEN_MAX; #endif 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; } else { baselen = 0; } 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)) { // YJIT and MJIT cannot be enabled at the same time. We enable only YJIT for --enable=all. #ifdef MJIT_FORCE_ENABLE mask &= ~(FEATURE_BIT(yjit)); #else mask &= ~(FEATURE_BIT(jit)); #endif goto found; } #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 } #else (void)set; #endif rb_warn("unknown argument for --%s: `%.*s'", enable ? "enable" : "disable", len, str); rb_warn("features are [%.*s].", (int)strlen(list), list); return; found: FEATURE_SET_TO(*argp, mask, (mask & enable)); return; } 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)) #define opt_match(s, l, name) \ ((((l) > rb_strlen_lit(name)) ? (s)[rb_strlen_lit(name)] == '=' : \ (l) == rb_strlen_lit(name)) && \ memcmp((s), name, rb_strlen_lit(name)) == 0 && \ (((s) += rb_strlen_lit(name)), 1)) #define opt_match_noarg(s, l, name) \ opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --jit-" name " is ignored"), 1) : 1) #define opt_match_arg(s, l, name) \ opt_match(s, l, name) && (*(s) ? 1 : (rb_raise(rb_eRuntimeError, "--jit-" name " needs an argument"), 0)) #define yjit_opt_match_noarg(s, l, name) \ opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --yjit-" name " is ignored"), 1) : 1) #define yjit_opt_match_arg(s, l, name) \ opt_match(s, l, name) && (*(s) && *(s+1) ? 1 : (rb_raise(rb_eRuntimeError, "--yjit-" name " needs an argument"), 0)) static bool setup_yjit_options(const char *s, struct rb_yjit_options *yjit_opt) { const char prefix[] = "yjit-"; if (strncmp(prefix, s, sizeof(prefix)-1) != 0) { return false; } s += sizeof(prefix)-1; const size_t l = strlen(s); if (l == 0) { return false; } if (yjit_opt_match_arg(s, l, "exec-mem-size")) { yjit_opt->exec_mem_size = atoi(s + 1); } else if (yjit_opt_match_arg(s, l, "call-threshold")) { yjit_opt->call_threshold = atoi(s + 1); } else if (yjit_opt_match_arg(s, l, "max-versions")) { yjit_opt->max_versions = atoi(s + 1); } else if (yjit_opt_match_noarg(s, l, "greedy-versioning")) { yjit_opt->greedy_versioning = true; } else if (yjit_opt_match_noarg(s, l, "no-type-prop")) { yjit_opt->no_type_prop = true; } else if (yjit_opt_match_noarg(s, l, "stats")) { yjit_opt->gen_stats = true; } else { rb_raise(rb_eRuntimeError, "invalid yjit option `%s' (--help will show valid yjit options)", s); } return true; } #if USE_MJIT static void setup_mjit_options(const char *s, struct mjit_options *mjit_opt) { if (*s != '-') return; const size_t l = strlen(++s); if (*s == 0) return; else if (opt_match_noarg(s, l, "warnings")) { mjit_opt->warnings = 1; } else if (opt_match(s, l, "debug")) { if (*s) mjit_opt->debug_flags = strdup(s + 1); else mjit_opt->debug = 1; } else if (opt_match_noarg(s, l, "wait")) { mjit_opt->wait = 1; } else if (opt_match_noarg(s, l, "save-temps")) { mjit_opt->save_temps = 1; } else if (opt_match(s, l, "verbose")) { mjit_opt->verbose = *s ? atoi(s + 1) : 1; } else if (opt_match_arg(s, l, "max-cache")) { mjit_opt->max_cache_size = atoi(s + 1); } else if (opt_match_arg(s, l, "min-calls")) { mjit_opt->min_calls = atoi(s + 1); } else { rb_raise(rb_eRuntimeError, "invalid MJIT option `%s' (--help will show valid MJIT options)", s); } } #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; } FEATURE_SET(opt->warn, RB_WARN_CATEGORY_ALL_BITS); s++; goto reswitch; case 'W': if (s[1] == ':') { unsigned int bits = 0; static const char no_prefix[] = "no-"; int enable = strncmp(s += 2, no_prefix, sizeof(no_prefix)-1) != 0; if (!enable) s += sizeof(no_prefix)-1; size_t len = strlen(s); if (NAME_MATCH_P("deprecated", s, len)) { bits = 1U << RB_WARN_CATEGORY_DEPRECATED; } else if (NAME_MATCH_P("experimental", s, len)) { bits = 1U << RB_WARN_CATEGORY_EXPERIMENTAL; } else { rb_warn("unknown warning category: `%s'", s); } if (bits) FEATURE_SET_TO(opt->warn, bits, enable ? bits : 0); break; } { size_t numlen; int v = 2; /* -W as -W2 */ if (*++s) { v = scan_oct(s, 1, &numlen); if (numlen == 0) v = 2; 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; switch (v) { case 0: FEATURE_SET_TO(opt->warn, RB_WARN_CATEGORY_ALL_BITS, 0); break; case 1: FEATURE_SET_TO(opt->warn, 1U << RB_WARN_CATEGORY_DEPRECATED, 0); break; default: FEATURE_SET(opt->warn, RB_WARN_CATEGORY_ALL_BITS); break; } } 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 '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("yjit", s) == 0 || setup_yjit_options(s, &opt->yjit)) { #if USE_MJIT FEATURE_SET(opt->features, FEATURE_BIT(yjit)); #else rb_warn("Ruby was built without JIT support"); #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 if (is_option_with_arg("backtrace-limit", Qfalse, Qfalse)) { char *e; long n = strtol(s, &e, 10); if (errno == ERANGE || n < 0 || *e) rb_raise(rb_eRuntimeError, "wrong limit for backtrace length"); rb_backtrace_length_limit = n; } 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; } void Init_builtin_features(void); static void ruby_init_prelude(void) { Init_builtin_features(); rb_const_remove(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX")); } void rb_call_builtin_inits(void); static void ruby_opt_init(ruby_cmdline_options_t *opt) { if (opt->dump & dump_exit_bits) return; if (opt->features.set & FEATURE_BIT(gems)) { rb_define_module("Gem"); if (opt->features.set & FEATURE_BIT(error_highlight)) { rb_define_module("ErrorHighlight"); } if (opt->features.set & FEATURE_BIT(did_you_mean)) { rb_define_module("DidYouMean"); } } rb_warning_category_update(opt->warn.mask, opt->warn.set); Init_ext(); /* load statically linked extensions before rubygems */ rb_call_builtin_inits(); ruby_init_prelude(); ruby_set_script_name(opt->script_name); require_libraries(&opt->req_list); } 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 $_.sub(args), except that * $_ 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 $_.gsub..., except that $_ * 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 -> $_ * * Equivalent to ($_.dup).chop!, except nil * 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 $_ = $_.chomp(string). 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 void setup_pager_env(void) { if (!getenv("LESS")) ruby_setenv("LESS", "-R"); // Output "raw" control characters. } #ifdef _WIN32 static int tty_enabled(void) { HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE); DWORD m; if (!GetConsoleMode(h, &m)) return 0; # ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING # define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x4 # endif if (!(m & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) return 0; return 1; } #elif !defined(HAVE_WORKING_FORK) # define tty_enabled() 0 #endif static VALUE copy_str(VALUE str, rb_encoding *enc, bool intern) { if (!intern) { if (rb_enc_str_coderange_scan(str, enc) == ENC_CODERANGE_BROKEN) return 0; return rb_enc_associate(rb_str_dup(str), enc); } return rb_enc_interned_str(RSTRING_PTR(str), RSTRING_LEN(str), enc); } 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 *ienc = 0; rb_encoding *const uenc = rb_utf8_encoding(); #endif const char *s; char fbuf[MAXPATHLEN]; int i = (int)proc_options(argc, argv, opt, 0); unsigned int dump = opt->dump & dump_exit_bits; rb_vm_t *vm = GET_VM(); const long loaded_before_enc = RARRAY_LEN(vm->loaded_features); if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) { int tty = isatty(1); const char *const progname = (argc > 0 && argv && argv[0] ? argv[0] : origarg.argc > 0 && origarg.argv && origarg.argv[0] ? origarg.argv[0] : ruby_engine); int columns = 0; if ((opt->dump & DUMP_BIT(help)) && tty) { const char *pager_env = getenv("RUBY_PAGER"); if (!pager_env) pager_env = getenv("PAGER"); if (pager_env && *pager_env && isatty(0)) { const char *columns_env = getenv("COLUMNS"); if (columns_env) columns = atoi(columns_env); VALUE pager = rb_str_new_cstr(pager_env); #ifdef HAVE_WORKING_FORK int fds[2]; if (rb_pipe(fds) == 0) { rb_pid_t pid = rb_fork(); if (pid > 0) { /* exec PAGER with reading from child */ dup2(fds[0], 0); } else if (pid == 0) { /* send the help message to the parent PAGER */ dup2(fds[1], 1); dup2(fds[1], 2); } close(fds[0]); close(fds[1]); if (pid > 0) { setup_pager_env(); rb_f_exec(1, &pager); kill(SIGTERM, pid); rb_waitpid(pid, 0, 0); } } #else setup_pager_env(); VALUE port = rb_io_popen(pager, rb_str_new_lit("w"), Qnil, Qnil); if (!NIL_P(port)) { int oldout = dup(1); int olderr = dup(2); int fd = RFILE(port)->fptr->fd; tty = tty_enabled(); dup2(fd, 1); dup2(fd, 2); usage(progname, 1, tty, columns); fflush(stdout); dup2(oldout, 1); dup2(olderr, 2); rb_io_close(port); return Qtrue; } #endif } } usage(progname, (opt->dump & DUMP_BIT(help)), tty, columns); 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; ruby_features_t warn = opt->warn; 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_RESTORE(opt->features, feat); FEATURE_SET_RESTORE(opt->warn, warn); } if (opt->src.enc.name) /* cannot set deprecated category, as enabling deprecation warnings based on flags * has not happened yet. */ 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->features.set & FEATURE_BIT(yjit)) { #if USE_MJIT if (opt->mjit.on) { rb_warn("MJIT and YJIT cannot both be enabled at the same time. Exiting"); exit(1); } #endif rb_yjit_init(&opt->yjit); } 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) { const 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); #ifdef _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 = IF_UTF8_PATH(uenc, 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, 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; 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 if (!(path = copy_str(path, lenc, !mark))) continue; #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); } } { VALUE loaded_features = vm->loaded_features; bool modified = false; for (long i = loaded_before_enc; i < RARRAY_LEN(loaded_features); ++i) { VALUE path = RARRAY_AREF(loaded_features, i); if (!(path = copy_str(path, IF_UTF8_PATH(uenc, lenc), true))) continue; modified = true; RARRAY_ASET(loaded_features, i, path); } if (modified) { rb_ary_replace(vm->loaded_features_snapshot, loaded_features); } } 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)), \ RBOOL(FEATURE_SET_P(o->features, FEATURE_BIT(name)))); 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); ruby_opt_init(opt); 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 = IF_UTF8_PATH(uenc, 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), !(dump & DUMP_BIT(insns_without_opt))); rb_ast_dispose(ast); } if (dump & (DUMP_BIT(insns) | DUMP_BIT(insns_without_opt))) { 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); rb_gvar_ractor_local("$-p"); rb_gvar_ractor_local("$-l"); rb_gvar_ractor_local("$-a"); if ((rb_e_script = opt->e_script) != 0) { rb_str_freeze(rb_e_script); 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; } ruby_opt_init(opt); } 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 __END__: * * $ 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; } /* disabling O_NONBLOCK, and returns 0 on success, otherwise errno */ static inline int disable_nonblock(int fd) { #if defined(HAVE_FCNTL) && defined(F_SETFL) if (fcntl(fd, F_SETFL, 0) < 0) { const int e = errno; ASSUME(e != 0); # if defined ENOTSUP if (e == ENOTSUP) return 0; # endif # if defined B_UNSUPPORTED if (e == B_UNSUPPORTED) return 0; # endif return e; } #endif return 0; } 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 (MODE_TO_LOAD != O_RDONLY && (e = disable_nonblock(fd)) != 0) { (void)close(fd); rb_load_fail(fname_v, strerror(e)); } 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_io_wait(f, RB_INT2NUM(RUBY_IO_READABLE), Qnil); } } 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, "$0 not initialized"); rb_progname = rb_str_new_frozen(ruby_setproctitle(val)); } static inline VALUE external_str_new_cstr(const char *p) { #if UTF8_PATH VALUE str = rb_utf8_str_new_cstr(p); str = str_conv_enc(str, NULL, rb_default_external_encoding()); return str; #else return rb_external_str_new_cstr(p); #endif } void ruby_script(const char *name) { if (name) { rb_orig_progname = rb_progname = external_str_new_cstr(name); rb_vm_set_progname(rb_progname); } } /*! Sets the current script name to this value. * * Same as ruby_script() but accepts a VALUE. */ void ruby_set_script_name(VALUE name) { rb_orig_progname = rb_progname = rb_str_dup(name); rb_vm_set_progname(rb_progname); } static void init_ids(ruby_cmdline_options_t *opt) { rb_uid_t uid = getuid(); rb_uid_t euid = geteuid(); rb_gid_t gid = getgid(); rb_gid_t egid = getegid(); if (uid != euid) opt->setids |= 1; if (egid != gid) opt->setids |= 2; } #undef forbid_setid static void forbid_setid(const char *s, const ruby_cmdline_options_t *opt) { if (opt->setids & 1) rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s); if (opt->setids & 2) rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s); } static VALUE verbose_getter(ID id, VALUE *ptr) { return *rb_ruby_verbose_ptr(); } static void verbose_setter(VALUE val, ID id, VALUE *variable) { *rb_ruby_verbose_ptr() = RTEST(val) ? Qtrue : val; } static VALUE opt_W_getter(ID id, VALUE *dmy) { VALUE v = *rb_ruby_verbose_ptr(); switch (v) { case Qnil: return INT2FIX(0); case Qfalse: return INT2FIX(1); case Qtrue: return INT2FIX(2); default: return Qnil; } } static VALUE debug_getter(ID id, VALUE *dmy) { return *rb_ruby_debug_ptr(); } static void debug_setter(VALUE val, ID id, VALUE *dmy) { *rb_ruby_debug_ptr() = val; } void ruby_prog_init(void) { rb_define_virtual_variable("$VERBOSE", verbose_getter, verbose_setter); rb_define_virtual_variable("$-v", verbose_getter, verbose_setter); rb_define_virtual_variable("$-w", verbose_getter, verbose_setter); rb_define_virtual_variable("$-W", opt_W_getter, rb_gvar_readonly_setter); rb_define_virtual_variable("$DEBUG", debug_getter, debug_setter); rb_define_virtual_variable("$-d", debug_getter, debug_setter); rb_gvar_ractor_local("$VERBOSE"); rb_gvar_ractor_local("$-v"); rb_gvar_ractor_local("$-w"); rb_gvar_ractor_local("$-W"); rb_gvar_ractor_local("$DEBUG"); rb_gvar_ractor_local("$-d"); 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; 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]); } } } 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; } fill_standard_fds(); }