зеркало из https://github.com/github/ruby.git
1992 строки
48 KiB
C
1992 строки
48 KiB
C
/**********************************************************************
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ruby.c -
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$Author$
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created at: Tue Aug 10 12:47:31 JST 1993
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Copyright (C) 1993-2007 Yukihiro Matsumoto
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Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
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Copyright (C) 2000 Information-technology Promotion Agency, Japan
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**********************************************************************/
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#ifdef __CYGWIN__
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#include <windows.h>
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#include <sys/cygwin.h>
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#endif
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#include "ruby/ruby.h"
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#include "ruby/encoding.h"
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#include "internal.h"
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#include "eval_intern.h"
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#include "dln.h"
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#include <stdio.h>
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#include <sys/types.h>
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#include <ctype.h>
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#ifdef __hpux
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#include <sys/pstat.h>
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#endif
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#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
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#include <dlfcn.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if defined(HAVE_FCNTL_H)
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#include <fcntl.h>
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#elif defined(HAVE_SYS_FCNTL_H)
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#include <sys/fcntl.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifndef MAXPATHLEN
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# define MAXPATHLEN 1024
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#endif
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#include "ruby/util.h"
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#ifndef HAVE_STDLIB_H
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char *getenv();
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#endif
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#if defined DISABLE_RUBYGEMS && DISABLE_RUBYGEMS
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#define DEFAULT_RUBYGEMS_ENABLED "disabled"
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#else
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#define DEFAULT_RUBYGEMS_ENABLED "enabled"
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#endif
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#define DISABLE_BIT(bit) (1U << disable_##bit)
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enum disable_flag_bits {
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disable_gems,
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disable_rubyopt,
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disable_flag_count
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};
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#define DUMP_BIT(bit) (1U << dump_##bit)
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enum dump_flag_bits {
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dump_version,
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dump_version_v,
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dump_copyright,
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dump_usage,
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dump_help,
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dump_yydebug,
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dump_syntax,
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dump_parsetree,
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dump_parsetree_with_comment,
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dump_insns,
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dump_flag_count
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};
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struct cmdline_options {
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int sflag, xflag;
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int do_loop, do_print;
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int do_line, do_split;
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int do_search;
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unsigned int disable;
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int verbose;
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int safe_level;
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unsigned int setids;
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unsigned int dump;
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const char *script;
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VALUE script_name;
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VALUE e_script;
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struct {
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struct {
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VALUE name;
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int index;
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} enc;
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} src, ext, intern;
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VALUE req_list;
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};
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static void init_ids(struct cmdline_options *);
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#define src_encoding_index GET_VM()->src_encoding_index
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static struct cmdline_options *
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cmdline_options_init(struct cmdline_options *opt)
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{
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MEMZERO(opt, *opt, 1);
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init_ids(opt);
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opt->src.enc.index = src_encoding_index;
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opt->ext.enc.index = -1;
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opt->intern.enc.index = -1;
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#if defined DISABLE_RUBYGEMS && DISABLE_RUBYGEMS
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opt->disable |= DISABLE_BIT(gems);
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#endif
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return opt;
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}
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static NODE *load_file(VALUE, VALUE, int, struct cmdline_options *);
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static void forbid_setid(const char *, struct cmdline_options *);
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#define forbid_setid(s) forbid_setid((s), opt)
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static struct {
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int argc;
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char **argv;
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} origarg;
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static void
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usage(const char *name, int help)
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{
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/* This message really ought to be max 23 lines.
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* Removed -h because the user already knows that option. Others? */
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struct message {
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const char *str;
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unsigned short namelen, secondlen;
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};
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#define M(shortopt, longopt, desc) { \
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shortopt " " longopt " " desc, \
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(unsigned short)sizeof(shortopt), \
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(unsigned short)sizeof(longopt), \
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}
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static const struct message usage_msg[] = {
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M("-0[octal]", "", "specify record separator (\\0, if no argument)"),
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M("-a", "", "autosplit mode with -n or -p (splits $_ into $F)"),
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M("-c", "", "check syntax only"),
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M("-Cdirectory", "", "cd to directory before executing your script"),
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M("-d", ", --debug", "set debugging flags (set $DEBUG to true)"),
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M("-e 'command'", "", "one line of script. Several -e's allowed. Omit [programfile]"),
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M("-Eex[:in]", ", --encoding=ex[:in]", "specify the default external and internal character encodings"),
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M("-Fpattern", "", "split() pattern for autosplit (-a)"),
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M("-i[extension]", "", "edit ARGV files in place (make backup if extension supplied)"),
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M("-Idirectory", "", "specify $LOAD_PATH directory (may be used more than once)"),
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M("-l", "", "enable line ending processing"),
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M("-n", "", "assume 'while gets(); ... end' loop around your script"),
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M("-p", "", "assume loop like -n but print line also like sed"),
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M("-rlibrary", "", "require the library before executing your script"),
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M("-s", "", "enable some switch parsing for switches after script name"),
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M("-S", "", "look for the script using PATH environment variable"),
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M("-T[level=1]", "", "turn on tainting checks"),
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M("-v", ", --verbose", "print version number, then turn on verbose mode"),
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M("-w", "", "turn warnings on for your script"),
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M("-W[level=2]", "", "set warning level; 0=silence, 1=medium, 2=verbose"),
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M("-x[directory]", "", "strip off text before #!ruby line and perhaps cd to directory"),
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M("-h", "", "show this message, --help for more info"),
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};
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static const struct message help_msg[] = {
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M("--copyright", "", "print the copyright"),
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M("--enable=feature[,...]", ", --disable=feature[,...]",
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"enable or disable features"),
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M("--external-encoding=encoding", ", --internal-encoding=encoding",
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"specify the default external or internal character encoding"),
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M("--version", "", "print the version"),
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M("--help", "", "show this message, -h for short message"),
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};
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static const struct message features[] = {
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M("gems", "", "rubygems (default: "DEFAULT_RUBYGEMS_ENABLED")"),
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M("rubyopt", "", "RUBYOPT environment variable (default: enabled)"),
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};
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int i, w = 16, num = numberof(usage_msg) - (help ? 1 : 0);
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#define SHOW(m) do { \
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int wrap = help && (m).namelen + (m).secondlen - 2 > w; \
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printf(" %.*s%-*.*s%-*s%s\n", (m).namelen-1, (m).str, \
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(wrap ? 0 : w - (m).namelen + 1), \
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(help ? (m).secondlen-1 : 0), (m).str + (m).namelen, \
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(wrap ? w + 3 : 0), (wrap ? "\n" : ""), \
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(m).str + (m).namelen + (m).secondlen); \
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} while (0)
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printf("Usage: %s [switches] [--] [programfile] [arguments]\n", name);
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for (i = 0; i < num; ++i)
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SHOW(usage_msg[i]);
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if (!help) return;
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for (i = 0; i < numberof(help_msg); ++i)
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SHOW(help_msg[i]);
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puts("Features:");
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for (i = 0; i < numberof(features); ++i)
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SHOW(features[i]);
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}
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#ifdef MANGLED_PATH
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static VALUE
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rubylib_mangled_path(const char *s, unsigned int l)
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{
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static char *newp, *oldp;
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static int newl, oldl, notfound;
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char *ptr;
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VALUE ret;
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if (!newp && !notfound) {
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newp = getenv("RUBYLIB_PREFIX");
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if (newp) {
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oldp = newp = strdup(newp);
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while (*newp && !ISSPACE(*newp) && *newp != ';') {
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newp = CharNext(newp); /* Skip digits. */
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}
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oldl = newp - oldp;
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while (*newp && (ISSPACE(*newp) || *newp == ';')) {
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newp = CharNext(newp); /* Skip whitespace. */
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}
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newl = strlen(newp);
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if (newl == 0 || oldl == 0) {
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rb_fatal("malformed RUBYLIB_PREFIX");
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}
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translit_char(newp, '\\', '/');
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}
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else {
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notfound = 1;
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}
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}
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if (!newp || l < oldl || STRNCASECMP(oldp, s, oldl) != 0) {
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return rb_str_new(s, l);
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}
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ret = rb_str_new(0, l + newl - oldl);
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ptr = RSTRING_PTR(ret);
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memcpy(ptr, newp, newl);
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memcpy(ptr + newl, s + oldl, l - oldl);
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ptr[l + newl - oldl] = 0;
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return ret;
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}
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#else
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#define rubylib_mangled_path rb_str_new
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#endif
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static void
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push_include(const char *path, VALUE (*filter)(VALUE))
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{
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const char sep = PATH_SEP_CHAR;
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const char *p, *s;
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VALUE load_path = GET_VM()->load_path;
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p = path;
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while (*p) {
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while (*p == sep)
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p++;
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if (!*p) break;
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for (s = p; *s && *s != sep; s = CharNext(s));
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rb_ary_push(load_path, (*filter)(rubylib_mangled_path(p, s - p)));
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p = s;
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}
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}
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#ifdef __CYGWIN__
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static void
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push_include_cygwin(const char *path, VALUE (*filter)(VALUE))
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{
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const char *p, *s;
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char rubylib[FILENAME_MAX];
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VALUE buf = 0;
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p = path;
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while (*p) {
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unsigned int len;
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while (*p == ';')
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p++;
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if (!*p) break;
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for (s = p; *s && *s != ';'; s = CharNext(s));
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len = s - p;
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if (*s) {
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if (!buf) {
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buf = rb_str_new(p, len);
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p = RSTRING_PTR(buf);
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}
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else {
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rb_str_resize(buf, len);
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p = strncpy(RSTRING_PTR(buf), p, len);
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}
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}
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#ifdef HAVE_CYGWIN_CONV_PATH
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#define CONV_TO_POSIX_PATH(p, lib) \
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cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib))
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#else
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#define CONV_TO_POSIX_PATH(p, lib) \
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cygwin_conv_to_posix_path((p), (lib))
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#endif
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if (CONV_TO_POSIX_PATH(p, rubylib) == 0)
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p = rubylib;
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push_include(p, filter);
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if (!*s) break;
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p = s + 1;
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}
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}
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#define push_include push_include_cygwin
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#endif
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void
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ruby_push_include(const char *path, VALUE (*filter)(VALUE))
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{
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if (path == 0)
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return;
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push_include(path, filter);
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}
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static VALUE
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identical_path(VALUE path)
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{
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return path;
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}
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static VALUE
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locale_path(VALUE path)
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{
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rb_enc_associate(path, rb_locale_encoding());
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return path;
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}
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void
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ruby_incpush(const char *path)
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{
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ruby_push_include(path, locale_path);
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}
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static VALUE
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expand_include_path(VALUE path)
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{
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char *p = RSTRING_PTR(path);
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if (!p)
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return path;
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if (*p == '.' && p[1] == '/')
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return path;
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return rb_file_expand_path(path, Qnil);
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}
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void
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ruby_incpush_expand(const char *path)
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{
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ruby_push_include(path, expand_include_path);
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}
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#if defined _WIN32 || defined __CYGWIN__
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static HMODULE libruby;
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BOOL WINAPI
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DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved)
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{
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if (reason == DLL_PROCESS_ATTACH)
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libruby = dll;
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return TRUE;
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}
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HANDLE
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rb_libruby_handle(void)
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{
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return libruby;
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}
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#endif
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void ruby_init_loadpath_safe(int safe_level);
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void
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ruby_init_loadpath(void)
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{
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ruby_init_loadpath_safe(0);
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}
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void
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ruby_init_loadpath_safe(int safe_level)
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{
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VALUE load_path;
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ID id_initial_load_path_mark;
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extern const char ruby_initial_load_paths[];
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const char *paths = ruby_initial_load_paths;
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#if defined LOAD_RELATIVE
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# if defined HAVE_DLADDR || defined HAVE_CYGWIN_CONV_PATH
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# define VARIABLE_LIBPATH 1
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# else
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# define VARIABLE_LIBPATH 0
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# endif
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# if VARIABLE_LIBPATH
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char *libpath;
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VALUE sopath;
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# else
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char libpath[MAXPATHLEN + 1];
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# endif
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size_t baselen;
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char *p;
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#if defined _WIN32 || defined __CYGWIN__
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# if VARIABLE_LIBPATH
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sopath = rb_str_new(0, MAXPATHLEN);
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libpath = RSTRING_PTR(sopath);
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GetModuleFileName(libruby, libpath, MAXPATHLEN);
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# else
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GetModuleFileName(libruby, libpath, sizeof libpath);
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# endif
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#elif defined(__EMX__)
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_execname(libpath, sizeof(libpath) - 1);
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#elif defined(HAVE_DLADDR)
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Dl_info dli;
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if (dladdr((void *)(VALUE)expand_include_path, &dli)) {
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char fbuf[MAXPATHLEN];
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char *f = dln_find_file_r(dli.dli_fname, getenv(PATH_ENV), fbuf, sizeof(fbuf));
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VALUE fname = rb_str_new_cstr(f ? f : dli.dli_fname);
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rb_str_freeze(fname);
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sopath = rb_realpath_internal(Qnil, fname, 1);
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}
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else {
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sopath = rb_str_new(0, 0);
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}
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libpath = RSTRING_PTR(sopath);
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#endif
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#if !VARIABLE_LIBPATH
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libpath[sizeof(libpath) - 1] = '\0';
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#endif
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#if defined DOSISH
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translit_char(libpath, '\\', '/');
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#elif defined __CYGWIN__
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{
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# if VARIABLE_LIBPATH
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const int win_to_posix = CCP_WIN_A_TO_POSIX | CCP_RELATIVE;
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size_t newsize = cygwin_conv_path(win_to_posix, libpath, 0, 0);
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if (newsize > 0) {
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VALUE rubylib = rb_str_new(0, newsize);
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p = RSTRING_PTR(rubylib);
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if (cygwin_conv_path(win_to_posix, libpath, p, newsize) == 0) {
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rb_str_resize(sopath, 0);
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sopath = rubylib;
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libpath = p;
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}
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}
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# else
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char rubylib[FILENAME_MAX];
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cygwin_conv_to_posix_path(libpath, rubylib);
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strncpy(libpath, rubylib, sizeof(libpath));
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# endif
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}
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#endif
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p = strrchr(libpath, '/');
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if (p) {
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static const char bindir[] = "/bin";
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#ifdef LIBDIR_BASENAME
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static const char libdir[] = "/"LIBDIR_BASENAME;
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#else
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static const char libdir[] = "/lib";
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#endif
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const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1;
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const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir) - 1;
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#ifdef ENABLE_MULTIARCH
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char *p2 = NULL;
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multiarch:
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#endif
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if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) {
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p -= bindir_len;
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}
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else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) {
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p -= libdir_len;
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}
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#ifdef ENABLE_MULTIARCH
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else if (p2) {
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p = p2;
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}
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else {
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p2 = p;
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p = rb_enc_path_last_separator(libpath, p, rb_ascii8bit_encoding());
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if (p) goto multiarch;
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p = p2;
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}
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#endif
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*p = 0;
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}
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#if !VARIABLE_LIBPATH
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else {
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strlcpy(libpath, ".", sizeof(libpath));
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p = libpath + 1;
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}
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baselen = p - libpath;
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#define PREFIX_PATH() rb_str_new(libpath, baselen)
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#else
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baselen = p - libpath;
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rb_str_resize(sopath, baselen);
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libpath = RSTRING_PTR(sopath);
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#define PREFIX_PATH() sopath
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#endif
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#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
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#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len))
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#else
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extern const char ruby_exec_prefix[];
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const size_t exec_prefix_len = strlen(ruby_exec_prefix);
|
|
#define RUBY_RELATIVE(path, len) rubylib_mangled_path((path), (len))
|
|
#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len)
|
|
#endif
|
|
load_path = GET_VM()->load_path;
|
|
|
|
if (safe_level == 0) {
|
|
#ifdef MANGLED_PATH
|
|
rubylib_mangled_path("", 0);
|
|
#endif
|
|
ruby_push_include(getenv("RUBYLIB"), identical_path);
|
|
}
|
|
|
|
id_initial_load_path_mark = rb_intern_const("@gem_prelude_index");
|
|
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"), rb_obj_freeze(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_new();
|
|
RBASIC_CLEAR_CLASS(list);
|
|
}
|
|
feature = rb_str_new2(mod);
|
|
RBASIC_CLEAR_CLASS(feature);
|
|
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_thread_t *th = GET_THREAD();
|
|
rb_encoding *extenc = rb_default_external_encoding();
|
|
int prev_parse_in_eval = th->parse_in_eval;
|
|
th->parse_in_eval = 0;
|
|
|
|
Init_ext(); /* should be called here for some reason :-( */
|
|
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_funcall2(self, require, 1, &feature);
|
|
}
|
|
*req_list = 0;
|
|
|
|
th->parse_in_eval = prev_parse_in_eval;
|
|
}
|
|
|
|
static rb_env_t*
|
|
toplevel_context(VALUE toplevel_binding)
|
|
{
|
|
rb_env_t *env;
|
|
rb_binding_t *bind;
|
|
|
|
GetBindingPtr(toplevel_binding, bind);
|
|
GetEnvPtr(bind->env, env);
|
|
return env;
|
|
}
|
|
|
|
static void
|
|
process_sflag(int *sflag)
|
|
{
|
|
if (*sflag > 0) {
|
|
long n;
|
|
VALUE *args;
|
|
VALUE argv = rb_argv;
|
|
|
|
n = RARRAY_LEN(argv);
|
|
args = RARRAY_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, struct cmdline_options *opt, int envopt);
|
|
|
|
static void
|
|
moreswitches(const char *s, struct cmdline_options *opt, int envopt)
|
|
{
|
|
long argc, i, len;
|
|
char **argv, *p;
|
|
const char *ap = 0;
|
|
VALUE argstr, argary;
|
|
|
|
while (ISSPACE(*s)) s++;
|
|
if (!*s) return;
|
|
argstr = rb_str_tmp_new((len = strlen(s)) + 2);
|
|
argary = rb_str_tmp_new(0);
|
|
|
|
p = RSTRING_PTR(argstr);
|
|
*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 = (char **)RSTRING_PTR(argary);
|
|
|
|
while ((i = proc_options(argc, argv, opt, envopt)) > 1 && (argc -= i) > 0) {
|
|
argv += i;
|
|
if (**argv != '-') {
|
|
*--*argv = '-';
|
|
}
|
|
if ((*argv)[1]) {
|
|
++argc;
|
|
--argv;
|
|
}
|
|
}
|
|
|
|
/* get rid of GC */
|
|
rb_str_resize(argary, 0);
|
|
rb_str_resize(argstr, 0);
|
|
}
|
|
|
|
#define NAME_MATCH_P(name, str, len) \
|
|
((len) < (int)sizeof(name) && strncmp((str), (name), (len)) == 0)
|
|
|
|
#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; \
|
|
}
|
|
|
|
static void
|
|
enable_option(const char *str, int len, void *arg)
|
|
{
|
|
#define UNSET_WHEN_DISABLE(bit) UNSET_WHEN(#bit, DISABLE_BIT(bit), str, len)
|
|
UNSET_WHEN_DISABLE(gems);
|
|
UNSET_WHEN_DISABLE(rubyopt);
|
|
if (NAME_MATCH_P("all", str, len)) {
|
|
*(unsigned int *)arg = 0U;
|
|
return;
|
|
}
|
|
rb_warn("unknown argument for --enable: `%.*s'", len, str);
|
|
}
|
|
|
|
static void
|
|
disable_option(const char *str, int len, void *arg)
|
|
{
|
|
#define SET_WHEN_DISABLE(bit) SET_WHEN(#bit, DISABLE_BIT(bit), str, len)
|
|
SET_WHEN_DISABLE(gems);
|
|
SET_WHEN_DISABLE(rubyopt);
|
|
if (NAME_MATCH_P("all", str, len)) {
|
|
*(unsigned int *)arg = ~0U;
|
|
return;
|
|
}
|
|
rb_warn("unknown argument for --disable: `%.*s'", len, str);
|
|
}
|
|
|
|
static void
|
|
dump_option(const char *str, int len, void *arg)
|
|
{
|
|
#define SET_WHEN_DUMP(bit) SET_WHEN(#bit, DUMP_BIT(bit), str, len)
|
|
SET_WHEN_DUMP(version);
|
|
SET_WHEN_DUMP(copyright);
|
|
SET_WHEN_DUMP(usage);
|
|
SET_WHEN_DUMP(help);
|
|
SET_WHEN_DUMP(yydebug);
|
|
SET_WHEN_DUMP(syntax);
|
|
SET_WHEN_DUMP(parsetree);
|
|
SET_WHEN_DUMP(parsetree_with_comment);
|
|
SET_WHEN_DUMP(insns);
|
|
rb_warn("don't know how to dump `%.*s',", len, str);
|
|
rb_warn("but only [version, copyright, usage, yydebug, syntax, parsetree, parsetree_with_comment, insns].");
|
|
}
|
|
|
|
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))
|
|
|
|
static long
|
|
proc_options(long argc, char **argv, struct cmdline_options *opt, int envopt)
|
|
{
|
|
long n, argc0 = argc;
|
|
const char *s;
|
|
|
|
if (argc == 0)
|
|
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':
|
|
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;
|
|
}
|
|
switch (v) {
|
|
case 0:
|
|
ruby_verbose = Qnil;
|
|
break;
|
|
case 1:
|
|
ruby_verbose = Qfalse;
|
|
break;
|
|
default:
|
|
ruby_verbose = Qtrue;
|
|
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) {
|
|
s = argv[1];
|
|
argc--, argv++;
|
|
}
|
|
if (!s) {
|
|
rb_raise(rb_eRuntimeError, "no code specified for -e");
|
|
}
|
|
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 (argv[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;
|
|
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;
|
|
s++;
|
|
if (!*s) {
|
|
s = argv[1];
|
|
argc--, argv++;
|
|
}
|
|
if (!s || !*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;
|
|
}
|
|
if (v > opt->safe_level) opt->safe_level = v;
|
|
}
|
|
goto reswitch;
|
|
|
|
case 'I':
|
|
forbid_setid("-I");
|
|
if (*++s)
|
|
ruby_incpush_expand(s);
|
|
else if (argv[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("\n\n");
|
|
}
|
|
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) \
|
|
((*(s)++ ? !*(s) : (!--argc || !((s) = *++argv))) && (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)
|
|
# define is_option_with_optarg(name, allow_hyphen, allow_envopt, needs_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), 1) : 0)
|
|
|
|
if (strcmp("copyright", s) == 0) {
|
|
if (envopt) goto noenvopt_long;
|
|
opt->dump |= DUMP_BIT(copyright);
|
|
}
|
|
else if (strcmp("debug", s) == 0) {
|
|
ruby_debug = Qtrue;
|
|
ruby_verbose = Qtrue;
|
|
}
|
|
else if (is_option_with_arg("enable", Qtrue, Qtrue)) {
|
|
ruby_each_words(s, enable_option, &opt->disable);
|
|
}
|
|
else if (is_option_with_arg("disable", Qtrue, Qtrue)) {
|
|
ruby_each_words(s, disable_option, &opt->disable);
|
|
}
|
|
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 (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:
|
|
{
|
|
if (ISPRINT(*s)) {
|
|
rb_raise(rb_eRuntimeError,
|
|
"invalid option -%c (-h will show valid options)",
|
|
(int)(unsigned char)*s);
|
|
}
|
|
else {
|
|
rb_raise(rb_eRuntimeError,
|
|
"invalid option -\\x%02X (-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:
|
|
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)
|
|
VALUE rb_argv0;
|
|
|
|
static VALUE
|
|
false_value(void)
|
|
{
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
true_value(void)
|
|
{
|
|
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 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 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 <code>String#chop!</code>.
|
|
* Available only when -p/-n command line option specified.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_chop(void)
|
|
{
|
|
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
|
|
* <code>String#chomp</code>.
|
|
* Available only when -p/-n command line option specified.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_chomp(int argc, VALUE *argv)
|
|
{
|
|
VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chomp"), argc, argv);
|
|
rb_lastline_set(str);
|
|
return str;
|
|
}
|
|
|
|
/* blank function in dmyext.c or generated by enc/make_encmake.rb */
|
|
extern void Init_enc(void);
|
|
|
|
static VALUE
|
|
process_options(int argc, char **argv, struct cmdline_options *opt)
|
|
{
|
|
NODE *tree = 0;
|
|
VALUE parser;
|
|
VALUE iseq;
|
|
rb_encoding *enc, *lenc;
|
|
const char *s;
|
|
char fbuf[MAXPATHLEN];
|
|
int i = (int)proc_options(argc, argv, opt, 0);
|
|
rb_thread_t *th = GET_THREAD();
|
|
VALUE toplevel_binding = Qundef;
|
|
|
|
argc -= i;
|
|
argv += i;
|
|
|
|
if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
|
|
usage(origarg.argv[0], (opt->dump & DUMP_BIT(help)));
|
|
return Qtrue;
|
|
}
|
|
|
|
if (!(opt->disable & DISABLE_BIT(rubyopt)) &&
|
|
opt->safe_level == 0 && (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;
|
|
|
|
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;
|
|
}
|
|
|
|
if (opt->src.enc.name)
|
|
rb_warning("-K is specified; it is for 1.8 compatibility and may cause odd behavior");
|
|
|
|
if (opt->dump & (DUMP_BIT(version) | DUMP_BIT(version_v))) {
|
|
ruby_show_version();
|
|
if (opt->dump & DUMP_BIT(version)) return Qtrue;
|
|
}
|
|
if (opt->dump & DUMP_BIT(copyright)) {
|
|
ruby_show_copyright();
|
|
}
|
|
|
|
if (opt->safe_level >= 4) {
|
|
OBJ_TAINT(rb_argv);
|
|
OBJ_TAINT(GET_VM()->load_path);
|
|
}
|
|
|
|
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++;
|
|
}
|
|
}
|
|
|
|
opt->script_name = rb_str_new_cstr(opt->script);
|
|
opt->script = RSTRING_PTR(opt->script_name);
|
|
#if defined DOSISH || defined __CYGWIN__
|
|
translit_char(RSTRING_PTR(opt->script_name), '\\', '/');
|
|
#endif
|
|
|
|
ruby_init_loadpath_safe(opt->safe_level);
|
|
Init_enc();
|
|
rb_enc_find_index("encdb");
|
|
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;
|
|
}
|
|
rb_enc_associate(opt->script_name, lenc);
|
|
rb_obj_freeze(opt->script_name);
|
|
{
|
|
long i;
|
|
VALUE load_path = GET_VM()->load_path;
|
|
for (i = 0; i < RARRAY_LEN(load_path); ++i) {
|
|
RARRAY_ASET(load_path, i,
|
|
rb_enc_associate(rb_str_dup(RARRAY_AREF(load_path, i)), lenc));
|
|
}
|
|
}
|
|
if (!(opt->disable & DISABLE_BIT(gems))) {
|
|
#if defined DISABLE_RUBYGEMS && DISABLE_RUBYGEMS
|
|
rb_require("rubygems");
|
|
#else
|
|
rb_define_module("Gem");
|
|
#endif
|
|
}
|
|
ruby_init_prelude();
|
|
ruby_set_argv(argc, argv);
|
|
process_sflag(&opt->sflag);
|
|
|
|
toplevel_binding = rb_const_get(rb_cObject, rb_intern("TOPLEVEL_BINDING"));
|
|
|
|
#define PREPARE_PARSE_MAIN(expr) do { \
|
|
rb_env_t *env = toplevel_context(toplevel_binding); \
|
|
th->parse_in_eval--; \
|
|
th->base_block = &env->block; \
|
|
expr; \
|
|
th->parse_in_eval++; \
|
|
th->base_block = 0; \
|
|
} while (0)
|
|
|
|
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;
|
|
}
|
|
rb_enc_associate(opt->e_script, eenc);
|
|
ruby_set_script_name(opt->script_name);
|
|
require_libraries(&opt->req_list);
|
|
ruby_set_script_name(progname);
|
|
|
|
PREPARE_PARSE_MAIN({
|
|
tree = rb_parser_compile_string(parser, opt->script, opt->e_script, 1);
|
|
});
|
|
}
|
|
else {
|
|
if (opt->script[0] == '-' && !opt->script[1]) {
|
|
forbid_setid("program input from stdin");
|
|
}
|
|
|
|
PREPARE_PARSE_MAIN({
|
|
tree = load_file(parser, opt->script_name, 1, opt);
|
|
});
|
|
}
|
|
ruby_set_script_name(opt->script_name);
|
|
if (opt->dump & DUMP_BIT(yydebug)) 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 (!tree) return Qfalse;
|
|
|
|
process_sflag(&opt->sflag);
|
|
opt->xflag = 0;
|
|
|
|
if (opt->safe_level >= 4) {
|
|
FL_UNSET(rb_argv, FL_TAINT);
|
|
FL_UNSET(GET_VM()->load_path, FL_TAINT);
|
|
}
|
|
|
|
if (opt->dump & DUMP_BIT(syntax)) {
|
|
printf("Syntax OK\n");
|
|
return Qtrue;
|
|
}
|
|
|
|
if (opt->do_print) {
|
|
PREPARE_PARSE_MAIN({
|
|
tree = rb_parser_append_print(parser, tree);
|
|
});
|
|
}
|
|
if (opt->do_loop) {
|
|
PREPARE_PARSE_MAIN({
|
|
tree = rb_parser_while_loop(parser, tree, opt->do_line, opt->do_split);
|
|
});
|
|
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 (opt->dump & DUMP_BIT(parsetree) || opt->dump & DUMP_BIT(parsetree_with_comment)) {
|
|
rb_io_write(rb_stdout, rb_parser_dump_tree(tree, opt->dump & DUMP_BIT(parsetree_with_comment)));
|
|
rb_io_flush(rb_stdout);
|
|
return Qtrue;
|
|
}
|
|
|
|
PREPARE_PARSE_MAIN({
|
|
VALUE path = Qnil;
|
|
if (!opt->e_script && strcmp(opt->script, "-")) {
|
|
path = rb_realpath_internal(Qnil, opt->script_name, 1);
|
|
}
|
|
iseq = rb_iseq_new_main(tree, opt->script_name, path);
|
|
});
|
|
|
|
if (opt->dump & DUMP_BIT(insns)) {
|
|
rb_io_write(rb_stdout, rb_iseq_disasm(iseq));
|
|
rb_io_flush(rb_stdout);
|
|
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_set_safe_level(opt->safe_level);
|
|
rb_gc_set_params();
|
|
|
|
return iseq;
|
|
}
|
|
|
|
struct load_file_arg {
|
|
VALUE parser;
|
|
VALUE fname;
|
|
int script;
|
|
struct cmdline_options *opt;
|
|
};
|
|
|
|
static VALUE
|
|
load_file_internal(VALUE arg)
|
|
{
|
|
extern VALUE rb_stdin;
|
|
struct load_file_arg *argp = (struct load_file_arg *)arg;
|
|
VALUE parser = argp->parser;
|
|
VALUE fname_v = rb_str_encode_ospath(argp->fname);
|
|
const char *fname = StringValueCStr(fname_v);
|
|
const char *orig_fname = StringValueCStr(argp->fname);
|
|
int script = argp->script;
|
|
struct cmdline_options *opt = argp->opt;
|
|
VALUE f;
|
|
int line_start = 1;
|
|
NODE *tree = 0;
|
|
rb_encoding *enc;
|
|
ID set_encoding;
|
|
int xflag = 0;
|
|
|
|
if (strcmp(fname, "-") == 0) {
|
|
f = rb_stdin;
|
|
}
|
|
else {
|
|
int fd, mode = O_RDONLY;
|
|
#if defined DOSISH || defined __CYGWIN__
|
|
{
|
|
const char *ext = strrchr(fname, '.');
|
|
if (ext && STRCASECMP(ext, ".exe") == 0) {
|
|
mode |= O_BINARY;
|
|
xflag = 1;
|
|
}
|
|
}
|
|
#endif
|
|
if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
|
|
rb_load_fail(fname_v, strerror(errno));
|
|
}
|
|
rb_update_max_fd(fd);
|
|
#if !defined DOSISH && !defined __CYGWIN__
|
|
{
|
|
struct stat st;
|
|
if (fstat(fd, &st) != 0)
|
|
rb_load_fail(fname_v, strerror(errno));
|
|
if (S_ISDIR(st.st_mode)) {
|
|
errno = EISDIR;
|
|
rb_load_fail(fname_v, strerror(EISDIR));
|
|
}
|
|
}
|
|
#endif
|
|
f = rb_io_fdopen(fd, mode, fname);
|
|
}
|
|
|
|
CONST_ID(set_encoding, "set_encoding");
|
|
if (script) {
|
|
VALUE c = 1; /* something not nil */
|
|
VALUE line;
|
|
char *p;
|
|
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 (xflag || opt->xflag) {
|
|
line_start--;
|
|
search_shebang:
|
|
forbid_setid("-x");
|
|
opt->xflag = FALSE;
|
|
while (!NIL_P(line = rb_io_gets(f))) {
|
|
line_start++;
|
|
if (RSTRING_LEN(line) > 2
|
|
&& RSTRING_PTR(line)[0] == '#'
|
|
&& RSTRING_PTR(line)[1] == '!') {
|
|
if ((p = strstr(RSTRING_PTR(line), "ruby")) != 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('!')) {
|
|
line = rb_io_gets(f);
|
|
if (NIL_P(line))
|
|
return 0;
|
|
|
|
if ((p = strstr(RSTRING_PTR(line), "ruby")) == 0) {
|
|
/* not ruby script, assume -x flag */
|
|
goto search_shebang;
|
|
}
|
|
|
|
start_read:
|
|
p += 4;
|
|
RSTRING_PTR(line)[RSTRING_LEN(line) - 1] = '\0';
|
|
if (RSTRING_PTR(line)[RSTRING_LEN(line) - 2] == '\r')
|
|
RSTRING_PTR(line)[RSTRING_LEN(line) - 2] = '\0';
|
|
if ((p = strstr(p, " -")) != 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);
|
|
}
|
|
else {
|
|
if (f != rb_stdin) rb_io_close(f);
|
|
f = Qnil;
|
|
}
|
|
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();
|
|
}
|
|
if (NIL_P(f)) {
|
|
f = rb_str_new(0, 0);
|
|
rb_enc_associate(f, enc);
|
|
return (VALUE)rb_parser_compile_string(parser, orig_fname, f, line_start);
|
|
}
|
|
rb_funcall(f, set_encoding, 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-"));
|
|
tree = rb_parser_compile_file(parser, orig_fname, f, line_start);
|
|
rb_funcall(f, set_encoding, 1, rb_parser_encoding(parser));
|
|
if (script && tree && 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);
|
|
}
|
|
else if (f != rb_stdin) {
|
|
rb_io_close(f);
|
|
}
|
|
return (VALUE)tree;
|
|
}
|
|
|
|
static VALUE
|
|
restore_lineno(VALUE lineno)
|
|
{
|
|
return rb_gv_set("$.", lineno);
|
|
}
|
|
|
|
static NODE *
|
|
load_file(VALUE parser, VALUE fname, int script, struct cmdline_options *opt)
|
|
{
|
|
struct load_file_arg arg;
|
|
arg.parser = parser;
|
|
arg.fname = fname;
|
|
arg.script = script;
|
|
arg.opt = opt;
|
|
return (NODE *)rb_ensure(load_file_internal, (VALUE)&arg, restore_lineno, rb_gv_get("$."));
|
|
}
|
|
|
|
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)
|
|
{
|
|
struct cmdline_options opt;
|
|
|
|
return load_file(rb_parser_new(), fname_v, 0, cmdline_options_init(&opt));
|
|
}
|
|
|
|
static void
|
|
set_arg0(VALUE val, ID id)
|
|
{
|
|
char *s;
|
|
long i;
|
|
|
|
if (origarg.argv == 0)
|
|
rb_raise(rb_eRuntimeError, "$0 not initialized");
|
|
StringValue(val);
|
|
s = RSTRING_PTR(val);
|
|
i = RSTRING_LEN(val);
|
|
|
|
setproctitle("%.*s", (int)i, s);
|
|
|
|
rb_progname = rb_obj_freeze(rb_external_str_new(s, i));
|
|
}
|
|
|
|
/*! Sets the current script name to this value.
|
|
*
|
|
* This is similar to <code>$0 = name</code> in Ruby level but also affects
|
|
* <code>Method#location</code> and others.
|
|
*/
|
|
void
|
|
ruby_script(const char *name)
|
|
{
|
|
if (name) {
|
|
rb_progname = rb_external_str_new(name, strlen(name));
|
|
rb_vm_set_progname(rb_progname);
|
|
}
|
|
}
|
|
|
|
/*! Sets the current script name to this value.
|
|
*
|
|
* Same as ruby_script() but accepts a VALUE.
|
|
*/
|
|
void
|
|
ruby_set_script_name(VALUE name)
|
|
{
|
|
rb_progname = rb_str_dup(name);
|
|
rb_vm_set_progname(rb_progname);
|
|
}
|
|
|
|
static void
|
|
init_ids(struct cmdline_options *opt)
|
|
{
|
|
rb_uid_t uid = getuid();
|
|
rb_uid_t euid = geteuid();
|
|
rb_gid_t gid = getgid();
|
|
rb_gid_t egid = getegid();
|
|
|
|
if (uid != euid) opt->setids |= 1;
|
|
if (egid != gid) opt->setids |= 2;
|
|
if (uid && opt->setids) {
|
|
if (opt->safe_level < 1) opt->safe_level = 1;
|
|
}
|
|
}
|
|
|
|
#undef forbid_setid
|
|
static void
|
|
forbid_setid(const char *s, struct cmdline_options *opt)
|
|
{
|
|
if (opt->setids & 1)
|
|
rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s);
|
|
if (opt->setids & 2)
|
|
rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s);
|
|
if (opt->safe_level > 0)
|
|
rb_raise(rb_eSecurityError, "no %s allowed in tainted mode", s);
|
|
}
|
|
|
|
static void
|
|
verbose_setter(VALUE val, ID id, void *data)
|
|
{
|
|
VALUE *variable = data;
|
|
*variable = RTEST(val) ? Qtrue : val;
|
|
}
|
|
|
|
static VALUE
|
|
opt_W_getter(ID id, void *data)
|
|
{
|
|
VALUE *variable = data;
|
|
switch (*variable) {
|
|
case Qnil:
|
|
return INT2FIX(0);
|
|
case Qfalse:
|
|
return INT2FIX(1);
|
|
case Qtrue:
|
|
return INT2FIX(2);
|
|
default:
|
|
return Qnil;
|
|
}
|
|
}
|
|
|
|
/*! Defines built-in variables */
|
|
void
|
|
ruby_prog_init(void)
|
|
{
|
|
rb_define_hooked_variable("$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);
|
|
|
|
/*
|
|
* ARGV contains the command line arguments used to run ruby with the
|
|
* first value containing the name of the executable.
|
|
*
|
|
* 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.argv)
|
|
dln_argv0 = origarg.argv[0];
|
|
else
|
|
dln_argv0 = argv[0];
|
|
#endif
|
|
rb_ary_clear(av);
|
|
for (i = 0; i < argc; i++) {
|
|
VALUE arg = rb_external_str_new_cstr(argv[i]);
|
|
|
|
OBJ_FREEZE(arg);
|
|
rb_ary_push(av, arg);
|
|
}
|
|
}
|
|
|
|
void *
|
|
ruby_process_options(int argc, char **argv)
|
|
{
|
|
struct cmdline_options opt;
|
|
VALUE iseq;
|
|
const char *script_name = (argc > 0 && argv[0]) ? argv[0] : "ruby";
|
|
|
|
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
|
|
{
|
|
extern void ruby_init_setproctitle(int argc, char *argv[]);
|
|
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 ruby(1).
|
|
*
|
|
* This function assumes this process is ruby(1) and it has just started.
|
|
* Usually programs that embeds CRuby interpreter should not call this function,
|
|
* and should do their own initialization.
|
|
*/
|
|
void
|
|
ruby_sysinit(int *argc, char ***argv)
|
|
{
|
|
#if defined(_WIN32)
|
|
void rb_w32_sysinit(int *argc, char ***argv);
|
|
rb_w32_sysinit(argc, argv);
|
|
#endif
|
|
origarg.argc = *argc;
|
|
origarg.argv = *argv;
|
|
#if defined(USE_DLN_A_OUT)
|
|
dln_argv0 = origarg.argv[0];
|
|
#endif
|
|
fill_standard_fds();
|
|
}
|