/********************************************************************** io.c - $Author$ $Date$ created at: Fri Oct 15 18:08:59 JST 1993 Copyright (C) 1993-2003 Yukihiro Matsumoto Copyright (C) 2000 Network Applied Communication Laboratory, Inc. Copyright (C) 2000 Information-technology Promotion Agency, Japan **********************************************************************/ #include "ruby.h" #include "rubyio.h" #include "rubysig.h" #include "env.h" #include #include #if defined(MSDOS) || defined(__BOW__) || defined(__CYGWIN__) || defined(_WIN32) || defined(__human68k__) || defined(__EMX__) || defined(__BEOS__) # define NO_SAFE_RENAME #endif #if defined(MSDOS) || defined(__CYGWIN__) || defined(_WIN32) # define NO_LONG_FNAME #endif #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(sun) || defined(_nec_ews) # define USE_SETVBUF #endif #ifdef __QNXNTO__ #include "unix.h" #endif #include #if !defined(DJGPP) && !defined(_WIN32) && !defined(__human68k__) #include #endif #if defined(HAVE_FCNTL_H) || defined(_WIN32) #include #elif defined(HAVE_SYS_FCNTL_H) #include #endif #if !HAVE_OFF_T && !defined(off_t) # define off_t long #endif #if !HAVE_FSEEKO && !defined(fseeko) # define fseeko fseek #endif #if !HAVE_FTELLO && !defined(ftello) # define ftello ftell #endif #include /* EMX has sys/param.h, but.. */ #if defined(HAVE_SYS_PARAM_H) && !(defined(__EMX__) || defined(__HIUX_MPP__)) # include #endif #if !defined NOFILE # define NOFILE 64 #endif #ifdef HAVE_UNISTD_H #include #endif extern void Init_File _((void)); #ifdef __BEOS__ # ifndef NOFILE # define NOFILE (OPEN_MAX) # endif #include #endif #include "util.h" #if SIZEOF_OFF_T > SIZEOF_LONG && !defined(HAVE_LONG_LONG) # error off_t is bigger than long, but you have no long long... #endif VALUE rb_cIO; VALUE rb_eEOFError; VALUE rb_eIOError; VALUE rb_stdin, rb_stdout, rb_stderr; VALUE rb_deferr; /* rescue VIM plugin */ static VALUE orig_stdout, orig_stderr; VALUE rb_output_fs; VALUE rb_rs; VALUE rb_output_rs; VALUE rb_default_rs; static VALUE argf; static ID id_write, id_read, id_getc; extern char *ruby_inplace_mode; struct timeval rb_time_interval _((VALUE)); static VALUE filename, current_file; static int gets_lineno; static int init_p = 0, next_p = 0; static VALUE lineno; #if defined(__VMS) #define fopen(file_spec, mode) fopen(file_spec, mode, "rfm=stmlf") #define open(file_spec, flags, mode) open(file_spec, flags, mode, "rfm=stmlf") #endif #ifdef _STDIO_USES_IOSTREAM /* GNU libc */ # ifdef _IO_fpos_t # define READ_DATA_PENDING(fp) ((fp)->_IO_read_ptr != (fp)->_IO_read_end) # define READ_DATA_PENDING_COUNT(fp) ((fp)->_IO_read_end - (fp)->_IO_read_ptr) # define READ_DATA_PENDING_PTR(fp) ((fp)->_IO_read_ptr) # else # define READ_DATA_PENDING(fp) ((fp)->_gptr < (fp)->_egptr) # define READ_DATA_PENDING_COUNT(fp) ((fp)->_egptr - (fp)->_gptr) # define READ_DATA_PENDING_PTR(fp) ((fp)->_gptr) # endif #elif defined(FILE_COUNT) # define READ_DATA_PENDING(fp) ((fp)->FILE_COUNT > 0) # define READ_DATA_PENDING_COUNT(fp) ((fp)->FILE_COUNT) #elif defined(FILE_READEND) # define READ_DATA_PENDING(fp) ((fp)->FILE_READPTR < (fp)->FILE_READEND) # define READ_DATA_PENDING_COUNT(fp) ((fp)->FILE_READEND - (fp)->FILE_READPTR) #elif defined(__BEOS__) # define READ_DATA_PENDING(fp) (fp->_state._eof == 0) #elif defined(__VMS) # define READ_DATA_PENDING(fp) (((unsigned int)((*(fp))->_flag) & _IOEOF) == 0) #else /* requires systems own version of the ReadDataPending() */ extern int ReadDataPending(); # define READ_DATA_PENDING(fp) (!feof(fp)) # define READ_DATA_BUFFERED(fp) 0 #endif #ifndef READ_DATA_BUFFERED # define READ_DATA_BUFFERED(fp) READ_DATA_PENDING(fp) #endif #ifndef READ_DATA_PENDING_PTR # ifdef FILE_READPTR # define READ_DATA_PENDING_PTR(fp) ((char *)(fp)->FILE_READPTR) # endif #endif #if defined __DJGPP__ # undef READ_DATA_PENDING_COUNT # undef READ_DATA_PENDING_PTR #endif #define READ_CHECK(fp) do {\ if (!READ_DATA_PENDING(fp)) {\ rb_thread_wait_fd(fileno(fp));\ rb_io_check_closed(fptr);\ }\ } while(0) void rb_eof_error() { rb_raise(rb_eEOFError, "End of file reached"); } VALUE rb_io_taint_check(io) VALUE io; { if (!OBJ_TAINTED(io) && rb_safe_level() >= 4) rb_raise(rb_eSecurityError, "Insecure: operation on untainted IO"); rb_check_frozen(io); return io; } void rb_io_check_closed(fptr) OpenFile *fptr; { if (!fptr) { rb_raise(rb_eIOError, "uninitialized stream"); } if (!fptr->f && !fptr->f2) { rb_raise(rb_eIOError, "closed stream"); } } static void io_fflush _((FILE *, OpenFile *)); static OpenFile * flush_before_seek(fptr) OpenFile *fptr; { if (fptr->mode & FMODE_WBUF) { io_fflush(GetWriteFile(fptr), fptr); } return fptr; } #define io_seek(fptr, ofs, whence) fseeko(flush_before_seek(fptr)->f, ofs, whence) #define io_tell(fptr) ftello(flush_before_seek(fptr)->f) #ifndef SEEK_CUR # define SEEK_SET 0 # define SEEK_CUR 1 # define SEEK_END 2 #endif #define FMODE_SYNCWRITE (FMODE_SYNC|FMODE_WRITABLE) void rb_io_check_readable(fptr) OpenFile *fptr; { rb_io_check_closed(fptr); if (!(fptr->mode & FMODE_READABLE)) { rb_raise(rb_eIOError, "not opened for reading"); } #if NEED_IO_SEEK_BETWEEN_RW if (((fptr->mode & FMODE_WBUF) || (fptr->mode & (FMODE_SYNCWRITE|FMODE_RBUF)) == FMODE_SYNCWRITE) && !feof(fptr->f) && !fptr->f2) { io_seek(fptr, 0, SEEK_CUR); } #endif fptr->mode |= FMODE_RBUF; } void rb_io_check_writable(fptr) OpenFile *fptr; { rb_io_check_closed(fptr); if (!(fptr->mode & FMODE_WRITABLE)) { rb_raise(rb_eIOError, "not opened for writing"); } #if NEED_IO_SEEK_BETWEEN_RW if ((fptr->mode & FMODE_RBUF) && !feof(fptr->f) && !fptr->f2) { io_seek(fptr, 0, SEEK_CUR); } #endif if (!fptr->f2) { fptr->mode &= ~FMODE_RBUF; } } int rb_read_pending(fp) FILE *fp; { return READ_DATA_PENDING(fp); } void rb_read_check(fp) FILE *fp; { if (!READ_DATA_PENDING(fp)) { rb_thread_wait_fd(fileno(fp)); } } static int ruby_dup(orig) int orig; { int fd; fd = dup(orig); if (fd < 0) { if (errno == EMFILE || errno == ENFILE) { rb_gc(); fd = dup(orig); } if (fd < 0) { rb_sys_fail(0); } } return fd; } static VALUE io_alloc _((VALUE)); static VALUE io_alloc(klass) VALUE klass; { NEWOBJ(io, struct RFile); OBJSETUP(io, klass, T_FILE); io->fptr = 0; return (VALUE)io; } static void io_fflush(f, fptr) FILE *f; OpenFile *fptr; { int n; if (!rb_thread_fd_writable(fileno(f))) { rb_io_check_closed(fptr); } for (;;) { n = fflush(f); if (n != EOF) break; if (!rb_io_wait_writable(fileno(f))) rb_sys_fail(fptr->path); } fptr->mode &= ~FMODE_WBUF; } int rb_io_wait_readable(f) int f; { fd_set rfds; switch (errno) { case EINTR: #if defined(ERESTART) case ERESTART: #endif rb_thread_wait_fd(f); return Qtrue; case EAGAIN: #if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN case EWOULDBLOCK: #endif FD_ZERO(&rfds); FD_SET(f, &rfds); rb_thread_select(f + 1, &rfds, NULL, NULL, NULL); return Qtrue; default: return Qfalse; } } int rb_io_wait_writable(f) int f; { fd_set wfds; switch (errno) { case EINTR: #if defined(ERESTART) case ERESTART: #endif rb_thread_fd_writable(f); return Qtrue; case EAGAIN: #if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN case EWOULDBLOCK: #endif FD_ZERO(&wfds); FD_SET(f, &wfds); rb_thread_select(f + 1, NULL, &wfds, NULL, NULL); return Qtrue; default: return Qfalse; } } /* writing functions */ long rb_io_fwrite(ptr, len, f) const char *ptr; long len; FILE *f; { long n, r; if ((n = len) <= 0) return n; #ifdef __human68k__ do { if (fputc(*ptr++, f) == EOF) { if (ferror(f)) return -1L; break; } } while (--n > 0); #else while (ptr += (r = fwrite(ptr, 1, n, f)), (n -= r) > 0) { if (ferror(f)) { if (rb_io_wait_writable(fileno(f))) { clearerr(f); continue; } return -1L; } } #endif return len - n; } static VALUE io_write(io, str) VALUE io, str; { OpenFile *fptr; FILE *f; long n; rb_secure(4); if (TYPE(str) != T_STRING) str = rb_obj_as_string(str); if (TYPE(io) != T_FILE) { /* port is not IO, call write method for it. */ return rb_funcall(io, id_write, 1, str); } if (RSTRING(str)->len == 0) return INT2FIX(0); GetOpenFile(io, fptr); rb_io_check_writable(fptr); f = GetWriteFile(fptr); n = rb_io_fwrite(RSTRING(str)->ptr, RSTRING(str)->len, f); if (n == -1L) rb_sys_fail(fptr->path); if (fptr->mode & FMODE_SYNC) { io_fflush(f, fptr); } else { fptr->mode |= FMODE_WBUF; } return LONG2FIX(n); } VALUE rb_io_write(io, str) VALUE io, str; { return rb_funcall(io, id_write, 1, str); } VALUE rb_io_addstr(io, str) VALUE io, str; { rb_io_write(io, str); return io; } static VALUE rb_io_flush(io) VALUE io; { OpenFile *fptr; FILE *f; GetOpenFile(io, fptr); rb_io_check_writable(fptr); f = GetWriteFile(fptr); io_fflush(f, fptr); return io; } static VALUE rb_io_tell(io) VALUE io; { OpenFile *fptr; off_t pos; GetOpenFile(io, fptr); pos = io_tell(fptr); if (pos < 0) rb_sys_fail(fptr->path); return OFFT2NUM(pos); } static VALUE rb_io_seek(io, offset, whence) VALUE io, offset; int whence; { OpenFile *fptr; off_t pos; GetOpenFile(io, fptr); pos = io_seek(fptr, NUM2OFFT(offset), whence); if (pos < 0) rb_sys_fail(fptr->path); clearerr(fptr->f); return INT2FIX(0); } static VALUE rb_io_seek_m(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE offset, ptrname; int whence = SEEK_SET; if (rb_scan_args(argc, argv, "11", &offset, &ptrname) == 2) { whence = NUM2INT(ptrname); } return rb_io_seek(io, offset, whence); } static VALUE rb_io_set_pos(io, offset) VALUE io, offset; { OpenFile *fptr; off_t pos; GetOpenFile(io, fptr); pos = io_seek(fptr, NUM2OFFT(offset), SEEK_SET); if (pos != 0) rb_sys_fail(fptr->path); clearerr(fptr->f); return OFFT2NUM(pos); } static VALUE rb_io_rewind(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); if (io_seek(fptr, 0L, 0) != 0) rb_sys_fail(fptr->path); clearerr(fptr->f); if (io == current_file) { gets_lineno -= fptr->lineno; } fptr->lineno = 0; return INT2FIX(0); } VALUE rb_io_eof(io) VALUE io; { OpenFile *fptr; int ch; GetOpenFile(io, fptr); rb_io_check_readable(fptr); if (feof(fptr->f)) return Qtrue; if (READ_DATA_PENDING(fptr->f)) return Qfalse; READ_CHECK(fptr->f); TRAP_BEG; ch = getc(fptr->f); TRAP_END; if (ch != EOF) { ungetc(ch, fptr->f); return Qfalse; } clearerr(fptr->f); return Qtrue; } static VALUE rb_io_sync(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); return (fptr->mode & FMODE_SYNC) ? Qtrue : Qfalse; } static VALUE rb_io_set_sync(io, mode) VALUE io, mode; { OpenFile *fptr; GetOpenFile(io, fptr); if (RTEST(mode)) { fptr->mode |= FMODE_SYNC; } else { fptr->mode &= ~FMODE_SYNC; } return mode; } static VALUE rb_io_fsync(io) VALUE io; { #ifdef HAVE_FSYNC OpenFile *fptr; FILE *f; GetOpenFile(io, fptr); rb_io_check_writable(fptr); f = GetWriteFile(fptr); io_fflush(f, fptr); if (fsync(fileno(f)) < 0) rb_sys_fail(fptr->path); return INT2FIX(0); #else rb_notimplement(); return Qnil; /* not reached */ #endif } static VALUE rb_io_fileno(io) VALUE io; { OpenFile *fptr; int fd; GetOpenFile(io, fptr); fd = fileno(fptr->f); return INT2FIX(fd); } static VALUE rb_io_pid(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); if (!fptr->pid) return Qnil; return INT2FIX(fptr->pid); } static VALUE rb_io_inspect(obj) VALUE obj; { OpenFile *fptr; char *buf, *cname, *st = ""; long len; fptr = RFILE(rb_io_taint_check(obj))->fptr; if (!fptr || !fptr->path) return rb_any_to_s(obj); cname = rb_obj_classname(obj); len = strlen(cname) + strlen(fptr->path) + 5; if (!(fptr->f || fptr->f2)) { st = " (closed)"; len += 9; } buf = ALLOCA_N(char, len); sprintf(buf, "#<%s:%s%s>", cname, fptr->path, st); return rb_str_new2(buf); } static VALUE rb_io_to_io(io) VALUE io; { return io; } /* reading functions */ long rb_io_fread(ptr, len, f) char *ptr; long len; FILE *f; { long n = len; int c; while (n > 0) { #ifdef READ_DATA_PENDING_COUNT long i = READ_DATA_PENDING_COUNT(f); if (i <= 0) { rb_thread_wait_fd(fileno(f)); i = READ_DATA_PENDING_COUNT(f); } if (i > 0) { if (i > n) i = n; TRAP_BEG; c = fread(ptr, 1, i, f); TRAP_END; if (c < 0) goto eof; ptr += c; n -= c; if (c < i) goto eof; continue; } #else if (!READ_DATA_PENDING(f)) { rb_thread_wait_fd(fileno(f)); } #endif TRAP_BEG; c = getc(f); TRAP_END; if (c == EOF) { eof: if (ferror(f)) { switch (errno) { case EINTR: #if defined(ERESTART) case ERESTART: #endif clearerr(f); continue; case EAGAIN: #if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN case EWOULDBLOCK: #endif if (len - n >= 0) { clearerr(f); return len - n; } } return 0; } *ptr = '\0'; break; } *ptr++ = c; n--; } return len - n; } #ifndef S_ISREG # define S_ISREG(m) ((m & S_IFMT) == S_IFREG) #endif #define SMALLBUF 100 static long remain_size(fptr) OpenFile *fptr; { struct stat st; off_t siz = BUFSIZ; off_t pos; if (feof(fptr->f)) return 0; if (fstat(fileno(fptr->f), &st) == 0 && S_ISREG(st.st_mode) #ifdef __BEOS__ && (st.st_dev > 3) #endif ) { pos = io_tell(fptr); if (st.st_size >= pos && pos >= 0) { siz = st.st_size - pos + 1; if (siz > LONG_MAX) { rb_raise(rb_eIOError, "file too big for single read"); } } } return (long)siz; } static VALUE read_all(fptr, siz, str) OpenFile *fptr; long siz; VALUE str; { long bytes = 0; long n; READ_CHECK(fptr->f); if (siz == 0) siz = BUFSIZ; if (NIL_P(str)) { str = rb_tainted_str_new(0, siz); } else { StringValue(str); rb_str_resize(str, siz); } for (;;) { n = rb_io_fread(RSTRING(str)->ptr+bytes, siz-bytes, fptr->f); if (n == 0 && bytes == 0) { rb_str_resize(str,0); if (!fptr->f) break; if (feof(fptr->f)) break; if (!ferror(fptr->f)) break; rb_sys_fail(fptr->path); } bytes += n; if (bytes < siz) break; siz += BUFSIZ; rb_str_resize(str, siz); } if (bytes != siz) rb_str_resize(str, bytes); return str; } static VALUE io_read(argc, argv, io) int argc; VALUE *argv; VALUE io; { OpenFile *fptr; long n, len; VALUE length, str; rb_scan_args(argc, argv, "02", &length, &str); GetOpenFile(io, fptr); rb_io_check_readable(fptr); if (NIL_P(length)) { return read_all(fptr, remain_size(fptr), str); } len = NUM2LONG(length); if (len < 0) { rb_raise(rb_eArgError, "negative length %ld given", len); } if (feof(fptr->f)) return Qnil; if (NIL_P(str)) { str = rb_str_new(0, len); } else { StringValue(str); rb_str_modify(str); rb_str_resize(str,len); } if (len == 0) return str; READ_CHECK(fptr->f); n = rb_io_fread(RSTRING(str)->ptr, len, fptr->f); if (n == 0) { rb_str_resize(str,0); if (!fptr->f) return Qnil; if (feof(fptr->f)) return Qnil; if (len > 0) rb_sys_fail(fptr->path); } RSTRING(str)->len = n; RSTRING(str)->ptr[n] = '\0'; OBJ_TAINT(str); return str; } static int appendline(fptr, delim, strp) OpenFile *fptr; int delim; VALUE *strp; { FILE *f = fptr->f; VALUE str = *strp; int c = EOF; #ifndef READ_DATA_PENDING_PTR char buf[8192]; char *bp = buf, *bpe = buf + sizeof buf - 3; int update = Qfalse; #endif do { #ifdef READ_DATA_PENDING_PTR long pending = READ_DATA_PENDING_COUNT(f); if (pending > 0) { const char *p = READ_DATA_PENDING_PTR(f); const char *e = memchr(p, delim, pending); long last = 0, len = (c != EOF); if (e) pending = e - p + 1; len += pending; if (!NIL_P(str)) { last = RSTRING(str)->len; rb_str_resize(str, last + len); } else { *strp = str = rb_str_buf_new(len); RSTRING(str)->len = len; RSTRING(str)->ptr[len] = '\0'; } if (c != EOF) { RSTRING(str)->ptr[last++] = c; } fread(RSTRING(str)->ptr + last, 1, pending, f); /* must not fail */ if (e) return delim; } else if (c != EOF) { if (!NIL_P(str)) { char ch = c; rb_str_buf_cat(str, &ch, 1); } else { *strp = str = rb_str_buf_new(1); RSTRING(str)->ptr[RSTRING(str)->len++] = c; } } rb_thread_wait_fd(fileno(f)); rb_io_check_closed(fptr); #else READ_CHECK(f); #endif TRAP_BEG; c = getc(f); TRAP_END; if (c == EOF) { if (ferror(f)) { clearerr(f); if (!rb_io_wait_readable(fileno(f))) rb_sys_fail(fptr->path); continue; } #ifdef READ_DATA_PENDING_PTR return c; #endif } #ifndef READ_DATA_PENDING_PTR if (c == EOF || (*bp++ = c) == delim || bp == bpe) { int cnt = bp - buf; if (cnt > 0) { if (!NIL_P(str)) rb_str_cat(str, buf, cnt); else *strp = str = rb_str_new(buf, cnt); } if (c == EOF) { if (update) return (int)RSTRING(str)->ptr[RSTRING(str)->len-1]; return c; } bp = buf; } update = Qtrue; #endif } while (c != delim); #ifdef READ_DATA_PENDING_PTR { char ch = c; if (!NIL_P(str)) { rb_str_cat(str, &ch, 1); } else { *strp = str = rb_str_new(&ch, 1); } } #endif return c; } static inline int swallow(fptr, term) OpenFile *fptr; int term; { FILE *f = fptr->f; int c; do { #ifdef READ_DATA_PENDING_PTR long cnt; while ((cnt = READ_DATA_PENDING_COUNT(f)) > 0) { char buf[1024]; const char *p = READ_DATA_PENDING_PTR(f); int i; if (cnt > sizeof buf) cnt = sizeof buf; if (*p != term) return Qtrue; i = cnt; while (--i && *++p == term); if (!fread(buf, 1, cnt - i, f)) /* must not fail */ rb_sys_fail(fptr->path); } rb_thread_wait_fd(fileno(f)); rb_io_check_closed(fptr); #else READ_CHECK(f); #endif TRAP_BEG; c = getc(f); TRAP_END; if (c != term) { ungetc(c, f); return Qtrue; } } while (c != EOF); return Qfalse; } static VALUE rb_io_getline_fast(fptr, delim) OpenFile *fptr; int delim; { VALUE str = Qnil; int c; while ((c = appendline(fptr, delim, &str)) != EOF && c != delim); if (!NIL_P(str)) { fptr->lineno++; lineno = INT2FIX(fptr->lineno); OBJ_TAINT(str); } return str; } static VALUE rb_io_getline(rs, fptr) VALUE rs; OpenFile *fptr; { VALUE str = Qnil; rb_io_check_readable(fptr); if (NIL_P(rs)) { str = read_all(fptr, 0, Qnil); if (RSTRING(str)->len == 0) return Qnil; } else if (rs == rb_default_rs) { return rb_io_getline_fast(fptr, '\n'); } else { int c, newline; char *rsptr; long rslen; int rspara = 0; StringValue(rs); rslen = RSTRING(rs)->len; if (rslen == 0) { rsptr = "\n\n"; rslen = 2; rspara = 1; swallow(fptr, '\n'); } else if (rslen == 1) { return rb_io_getline_fast(fptr, RSTRING(rs)->ptr[0]); } else { rsptr = RSTRING(rs)->ptr; } newline = rsptr[rslen - 1]; while ((c = appendline(fptr, newline, &str)) != EOF && (c != newline || RSTRING(str)->len < rslen || memcmp(RSTRING(str)->ptr+RSTRING(str)->len-rslen,rsptr,rslen))); if (rspara) { if (c != EOF) { swallow(fptr, '\n'); } } } if (!NIL_P(str)) { fptr->lineno++; lineno = INT2FIX(fptr->lineno); OBJ_TAINT(str); } return str; } VALUE rb_io_gets(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); rb_io_check_readable(fptr); return rb_io_getline_fast(fptr, '\n'); } static VALUE rb_io_gets_m(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE rs, str; OpenFile *fptr; if (argc == 0) { rs = rb_rs; } else { rb_scan_args(argc, argv, "1", &rs); } GetOpenFile(io, fptr); str = rb_io_getline(rs, fptr); if (!NIL_P(str)) { rb_lastline_set(str); } return str; } static VALUE rb_io_lineno(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); rb_io_check_readable(fptr); return INT2NUM(fptr->lineno); } static VALUE rb_io_set_lineno(io, lineno) VALUE io, lineno; { OpenFile *fptr; GetOpenFile(io, fptr); rb_io_check_readable(fptr); fptr->lineno = NUM2INT(lineno); return lineno; } static void lineno_setter(val, id, var) VALUE val; ID id; VALUE *var; { gets_lineno = NUM2INT(val); *var = INT2FIX(gets_lineno); } static VALUE argf_set_lineno(argf, val) VALUE argf, val; { gets_lineno = NUM2INT(val); lineno = INT2FIX(gets_lineno); return Qnil; } static VALUE argf_lineno() { return lineno; } static VALUE rb_io_readline(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE line = rb_io_gets_m(argc, argv, io); if (NIL_P(line)) { rb_eof_error(); } return line; } static VALUE rb_io_readlines(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE line, ary; VALUE rs; OpenFile *fptr; if (argc == 0) { rs = rb_rs; } else { rb_scan_args(argc, argv, "1", &rs); } GetOpenFile(io, fptr); ary = rb_ary_new(); while (!NIL_P(line = rb_io_getline(rs, fptr))) { rb_ary_push(ary, line); } return ary; } static VALUE rb_io_each_line(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE str; OpenFile *fptr; VALUE rs; if (argc == 0) { rs = rb_rs; } else { rb_scan_args(argc, argv, "1", &rs); } GetOpenFile(io, fptr); while (!NIL_P(str = rb_io_getline(rs, fptr))) { rb_yield(str); } return io; } static VALUE rb_io_each_byte(io) VALUE io; { OpenFile *fptr; FILE *f; int c; GetOpenFile(io, fptr); for (;;) { rb_io_check_readable(fptr); f = fptr->f; READ_CHECK(f); TRAP_BEG; c = getc(f); TRAP_END; if (c == EOF) { if (ferror(f)) { clearerr(f); if (!rb_io_wait_readable(fileno(f))) rb_sys_fail(fptr->path); continue; } break; } rb_yield(INT2FIX(c & 0xff)); } if (ferror(f)) rb_sys_fail(fptr->path); return io; } VALUE rb_io_getc(io) VALUE io; { OpenFile *fptr; FILE *f; int c; GetOpenFile(io, fptr); rb_io_check_readable(fptr); f = fptr->f; retry: READ_CHECK(f); TRAP_BEG; c = getc(f); TRAP_END; if (c == EOF) { if (ferror(f)) { clearerr(f); if (!rb_io_wait_readable(fileno(f))) rb_sys_fail(fptr->path); goto retry; } return Qnil; } return INT2FIX(c & 0xff); } int rb_getc(f) FILE *f; { int c; if (!READ_DATA_PENDING(f)) { rb_thread_wait_fd(fileno(f)); } TRAP_BEG; c = getc(f); TRAP_END; return c; } static VALUE rb_io_readchar(io) VALUE io; { VALUE c = rb_io_getc(io); if (NIL_P(c)) { rb_eof_error(); } return c; } VALUE rb_io_ungetc(io, c) VALUE io, c; { OpenFile *fptr; int cc = NUM2INT(c); GetOpenFile(io, fptr); if (!(fptr->mode & FMODE_RBUF)) rb_raise(rb_eIOError, "unread stream"); rb_io_check_readable(fptr); if (ungetc(cc, fptr->f) == EOF && cc != EOF) rb_sys_fail(fptr->path); return Qnil; } static VALUE rb_io_isatty(io) VALUE io; { OpenFile *fptr; GetOpenFile(io, fptr); if (isatty(fileno(fptr->f)) == 0) return Qfalse; return Qtrue; } static void fptr_finalize(fptr, noraise) OpenFile *fptr; int noraise; { int n1 = 0, n2 = 0, e = 0, f1, f2 = -1; if (fptr->f2) { f2 = fileno(fptr->f2); while ((n2 = fclose(fptr->f2)) < 0) { e = errno; if (!rb_io_wait_writable(f2)) { break; } if (!fptr->f2) break; } fptr->f2 = 0; } if (fptr->f) { f1 = fileno(fptr->f); while ((n1 = fclose(fptr->f)) < 0) { if (f2 != -1 || !(fptr->mode & FMODE_WBUF)) break; if (!rb_io_wait_writable(f1)) break; if (!fptr->f) break; } fptr->f = 0; if (n1 < 0 && errno == EBADF && f1 == f2) { n1 = 0; } } if (!noraise && (n1 < 0 || n2 < 0)) { if (n1 == 0) errno = e; rb_sys_fail(fptr->path); } } static void rb_io_fptr_cleanup(fptr, noraise) OpenFile *fptr; int noraise; { if (fptr->finalize) { (*fptr->finalize)(fptr, noraise); } else { fptr_finalize(fptr, noraise); } } void rb_io_fptr_finalize(fptr) OpenFile *fptr; { if (!fptr) return; if (fptr->path) { free(fptr->path); } if (!fptr->f && !fptr->f2) return; if (fileno(fptr->f) < 3) return; rb_io_fptr_cleanup(fptr, Qtrue); } VALUE rb_io_close(io) VALUE io; { OpenFile *fptr; int fd, fd2; fptr = RFILE(io)->fptr; if (!fptr) return Qnil; if (fptr->f2) { fd2 = fileno(fptr->f2); } else { if (!fptr->f) return Qnil; fd2 = -1; } fd = fileno(fptr->f); rb_io_fptr_cleanup(fptr, Qfalse); rb_thread_fd_close(fd); if (fd2 >= 0) rb_thread_fd_close(fd2); if (fptr->pid) { rb_syswait(fptr->pid); fptr->pid = 0; } return Qnil; } static VALUE rb_io_close_m(io) VALUE io; { if (rb_safe_level() >= 4 && !OBJ_TAINTED(io)) { rb_raise(rb_eSecurityError, "Insecure: can't close"); } rb_io_check_closed(RFILE(io)->fptr); rb_io_close(io); return Qnil; } static VALUE io_close(io) VALUE io; { return rb_funcall(io, rb_intern("close"), 0, 0); } static VALUE rb_io_closed(io) VALUE io; { OpenFile *fptr; fptr = RFILE(io)->fptr; return (fptr->f || fptr->f2)?Qfalse:Qtrue; } static VALUE rb_io_close_read(io) VALUE io; { OpenFile *fptr; int n; if (rb_safe_level() >= 4 && !OBJ_TAINTED(io)) { rb_raise(rb_eSecurityError, "Insecure: can't close"); } GetOpenFile(io, fptr); if (fptr->f2 == 0 && (fptr->mode & FMODE_WRITABLE)) { rb_raise(rb_eIOError, "closing non-duplex IO for reading"); } if (fptr->f2 == 0) { return rb_io_close(io); } n = fclose(fptr->f); fptr->mode &= ~FMODE_READABLE; fptr->f = fptr->f2; fptr->f2 = 0; if (n != 0) rb_sys_fail(fptr->path); return Qnil; } static VALUE rb_io_close_write(io) VALUE io; { OpenFile *fptr; int n; if (rb_safe_level() >= 4 && !OBJ_TAINTED(io)) { rb_raise(rb_eSecurityError, "Insecure: can't close"); } GetOpenFile(io, fptr); if (fptr->f2 == 0 && (fptr->mode & FMODE_READABLE)) { rb_raise(rb_eIOError, "closing non-duplex IO for writing"); } if (fptr->f2 == 0) { return rb_io_close(io); } n = fclose(fptr->f2); fptr->f2 = 0; fptr->mode &= ~FMODE_WRITABLE; if (n != 0) rb_sys_fail(fptr->path); return Qnil; } static VALUE rb_io_sysseek(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE offset, ptrname; int whence = SEEK_SET; OpenFile *fptr; off_t pos; if (rb_scan_args(argc, argv, "11", &offset, &ptrname) == 2) { whence = NUM2INT(ptrname); } GetOpenFile(io, fptr); if ((fptr->mode & FMODE_READABLE) && READ_DATA_BUFFERED(fptr->f)) { rb_raise(rb_eIOError, "sysseek for buffered IO"); } if ((fptr->mode & FMODE_WRITABLE) && (fptr->mode & FMODE_WBUF)) { rb_warn("sysseek for buffered IO"); } pos = lseek(fileno(fptr->f), NUM2OFFT(offset), whence); if (pos == -1) rb_sys_fail(fptr->path); clearerr(fptr->f); return OFFT2NUM(pos); } static VALUE rb_io_syswrite(io, str) VALUE io, str; { OpenFile *fptr; FILE *f; long n; rb_secure(4); if (TYPE(str) != T_STRING) str = rb_obj_as_string(str); GetOpenFile(io, fptr); rb_io_check_writable(fptr); f = GetWriteFile(fptr); if (fptr->mode & FMODE_WBUF) { rb_warn("syswrite for buffered IO"); } if (!rb_thread_fd_writable(fileno(f))) { rb_io_check_closed(fptr); } n = write(fileno(f), RSTRING(str)->ptr, RSTRING(str)->len); if (n == -1) rb_sys_fail(fptr->path); return LONG2FIX(n); } static VALUE rb_io_sysread(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE len, str; OpenFile *fptr; long n, ilen; rb_scan_args(argc, argv, "11", &len, &str); ilen = NUM2LONG(len); GetOpenFile(io, fptr); rb_io_check_readable(fptr); if (READ_DATA_BUFFERED(fptr->f)) { rb_raise(rb_eIOError, "sysread for buffered IO"); } if (NIL_P(str)) { str = rb_str_new(0, ilen); } else { StringValue(str); rb_str_modify(str); rb_str_resize(str, ilen); } if (ilen == 0) return str; n = fileno(fptr->f); rb_thread_wait_fd(fileno(fptr->f)); TRAP_BEG; n = read(fileno(fptr->f), RSTRING(str)->ptr, RSTRING(str)->len); TRAP_END; if (n == -1) { rb_str_resize(str, 0); rb_sys_fail(fptr->path); } if (n == 0 && ilen > 0) { rb_str_resize(str, 0); rb_eof_error(); } RSTRING(str)->len = n; RSTRING(str)->ptr[n] = '\0'; OBJ_TAINT(str); return str; } VALUE rb_io_binmode(io) VALUE io; { #if defined(_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) || defined(__EMX__) OpenFile *fptr; GetOpenFile(io, fptr); #ifdef __human68k__ if (fptr->f) fmode(fptr->f, _IOBIN); if (fptr->f2) fmode(fptr->f2, _IOBIN); #else if (fptr->f && setmode(fileno(fptr->f), O_BINARY) == -1) rb_sys_fail(fptr->path); if (fptr->f2 && setmode(fileno(fptr->f2), O_BINARY) == -1) rb_sys_fail(fptr->path); #endif fptr->mode |= FMODE_BINMODE; #endif return io; } char* rb_io_flags_mode(flags, mode) int flags; char *mode; { char *p = mode; switch (flags & FMODE_READWRITE) { case FMODE_READABLE: *p++ = 'r'; break; case FMODE_WRITABLE: *p++ = 'w'; break; case FMODE_READWRITE: *p++ = 'r'; *p++ = '+'; break; } *p++ = '\0'; #ifdef O_BINARY if (flags & FMODE_BINMODE) { if (mode[1] == '+') { mode[1] = 'b'; mode[2] = '+'; mode[3] = '\0'; } else { mode[1] = 'b'; mode[2] = '\0'; } } #endif return mode; } int rb_io_mode_flags(mode) const char *mode; { int flags = 0; const char *m = mode; switch (*m++) { case 'r': flags |= FMODE_READABLE; break; case 'w': flags |= FMODE_WRITABLE; break; case 'a': flags |= FMODE_WRITABLE; break; default: error: rb_raise(rb_eArgError, "illegal access mode %s", mode); } while (*m) { switch (*m++) { case 'b': flags |= FMODE_BINMODE; break; case '+': flags |= FMODE_READWRITE; break; default: goto error; } } return flags; } static int rb_io_modenum_flags(mode) int mode; { int flags = 0; switch (mode & (O_RDONLY|O_WRONLY|O_RDWR)) { case O_RDONLY: flags = FMODE_READABLE; break; case O_WRONLY: flags = FMODE_WRITABLE; break; case O_RDWR: flags = FMODE_WRITABLE|FMODE_READABLE; break; } #ifdef O_BINARY if (mode & O_BINARY) { flags |= FMODE_BINMODE; } #endif return flags; } static int rb_io_mode_modenum(mode) const char *mode; { int flags = 0; const char *m = mode; switch (*m++) { case 'r': flags |= O_RDONLY; break; case 'w': flags |= O_WRONLY | O_CREAT | O_TRUNC; break; case 'a': flags |= O_WRONLY | O_CREAT | O_APPEND; break; default: error: rb_raise(rb_eArgError, "illegal access mode %s", mode); } while (*m) { switch (*m++) { case 'b': #ifdef O_BINARY flags |= O_BINARY; #endif break; case '+': flags |= O_RDWR; break; default: goto error; } } return flags; } static char* rb_io_modenum_mode(flags, mode) int flags; char *mode; { char *p = mode; switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) { case O_RDONLY: *p++ = 'r'; break; case O_WRONLY: *p++ = 'w'; break; case O_RDWR: *p++ = 'r'; *p++ = '+'; break; } *p++ = '\0'; #ifdef O_BINARY if (flags & O_BINARY) { if (mode[1] == '+') { mode[1] = 'b'; mode[2] = '+'; mode[3] = '\0'; } else { mode[1] = 'b'; mode[2] = '\0'; } } #endif return mode; } static int rb_sysopen(fname, flags, mode) char *fname; int flags; unsigned int mode; { int fd; fd = open(fname, flags, mode); if (fd < 0) { if (errno == EMFILE || errno == ENFILE) { rb_gc(); fd = open(fname, flags, mode); } if (fd < 0) { rb_sys_fail(fname); } } return fd; } FILE * rb_fopen(fname, mode) const char *fname; const char *mode; { FILE *file; file = fopen(fname, mode); if (!file) { if (errno == EMFILE || errno == ENFILE) { rb_gc(); file = fopen(fname, mode); } if (!file) { rb_sys_fail(fname); } } #ifdef USE_SETVBUF if (setvbuf(file, NULL, _IOFBF, 0) != 0) rb_warn("setvbuf() can't be honered for %s", fname); #endif #ifdef __human68k__ fmode(file, _IOTEXT); #endif return file; } FILE * rb_fdopen(fd, mode) int fd; const char *mode; { FILE *file; file = fdopen(fd, mode); if (!file) { if (errno == EMFILE || errno == ENFILE) { rb_gc(); file = fdopen(fd, mode); } if (!file) { #ifdef _WIN32 if (errno == 0) errno = EINVAL; #endif rb_sys_fail(0); } } #ifdef USE_SETVBUF if (setvbuf(file, NULL, _IOFBF, 0) != 0) rb_warn("setvbuf() can't be honered (fd=%d)", fd); #endif return file; } static VALUE rb_file_open_internal(io, fname, mode) VALUE io; const char *fname, *mode; { OpenFile *fptr; MakeOpenFile(io, fptr); fptr->mode = rb_io_mode_flags(mode); fptr->f = rb_fopen(fname, mode); fptr->path = strdup(fname); return io; } VALUE rb_file_open(fname, mode) const char *fname, *mode; { return rb_file_open_internal(io_alloc(rb_cFile), fname, mode); } static VALUE rb_file_sysopen_internal(io, fname, flags, mode) VALUE io; char *fname; int flags, mode; { OpenFile *fptr; int fd; char *m; char mbuf[4]; MakeOpenFile(io, fptr); fd = rb_sysopen(fname, flags, mode); m = rb_io_modenum_mode(flags, mbuf); fptr->mode = rb_io_modenum_flags(flags); fptr->f = rb_fdopen(fd, m); fptr->path = strdup(fname); return io; } VALUE rb_file_sysopen(fname, flags, mode) const char *fname; int flags, mode; { return rb_file_sysopen_internal(io_alloc(rb_cFile), fname, flags, mode); } #if defined (_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) || defined(__VMS) static struct pipe_list { OpenFile *fptr; struct pipe_list *next; } *pipe_list; static void pipe_add_fptr(fptr) OpenFile *fptr; { struct pipe_list *list; list = ALLOC(struct pipe_list); list->fptr = fptr; list->next = pipe_list; pipe_list = list; } static void pipe_del_fptr(fptr) OpenFile *fptr; { struct pipe_list *list = pipe_list; struct pipe_list *tmp; if (list->fptr == fptr) { pipe_list = list->next; free(list); return; } while (list->next) { if (list->next->fptr == fptr) { tmp = list->next; list->next = list->next->next; free(tmp); return; } list = list->next; } } static void pipe_atexit _((void)) { struct pipe_list *list = pipe_list; struct pipe_list *tmp; while (list) { tmp = list->next; rb_io_fptr_finalize(list->fptr); list = tmp; } } static void pipe_finalize _((OpenFile *fptr,int)); static void pipe_finalize(fptr, noraise) OpenFile *fptr; int noraise; { #if !defined (__CYGWIN__) && !defined(_WIN32) extern VALUE rb_last_status; int status; if (fptr->f) { status = pclose(fptr->f); } if (fptr->f2) { status = pclose(fptr->f2); } fptr->f = fptr->f2 = 0; #if defined DJGPP status <<= 8; #endif rb_last_status = INT2FIX(status); #else fptr_finalize(fptr, noraise); #endif pipe_del_fptr(fptr); } #endif void rb_io_synchronized(fptr) OpenFile *fptr; { fptr->mode |= FMODE_SYNC; } void rb_io_unbuffered(fptr) OpenFile *fptr; { rb_io_synchronized(fptr); } static VALUE pipe_open(pname, mode) char *pname, *mode; { int modef = rb_io_mode_flags(mode); OpenFile *fptr; #if defined(DJGPP) || defined(__human68k__) || defined(__VMS) FILE *f = popen(pname, mode); if (!f) rb_sys_fail(pname); else { VALUE port = io_alloc(rb_cIO); MakeOpenFile(port, fptr); fptr->finalize = pipe_finalize; fptr->mode = modef; pipe_add_fptr(fptr); if (modef & FMODE_READABLE) fptr->f = f; if (modef & FMODE_WRITABLE) { if (fptr->f) fptr->f2 = f; else fptr->f = f; rb_io_synchronized(fptr); } return (VALUE)port; } #else #ifdef _WIN32 int pid; FILE *fpr, *fpw; retry: pid = pipe_exec(pname, rb_io_mode_modenum(mode), &fpr, &fpw); if (pid == -1) { /* exec failed */ if (errno == EAGAIN) { rb_thread_sleep(1); goto retry; } rb_sys_fail(pname); } else { VALUE port = io_alloc(rb_cIO); MakeOpenFile(port, fptr); fptr->mode = modef; fptr->mode |= FMODE_SYNC; fptr->pid = pid; if (modef & FMODE_READABLE) { fptr->f = fpr; } if (modef & FMODE_WRITABLE) { if (fptr->f) fptr->f2 = fpw; else fptr->f = fpw; } fptr->finalize = pipe_finalize; pipe_add_fptr(fptr); return (VALUE)port; } #else int pid, pr[2], pw[2]; volatile int doexec; if (((modef & FMODE_READABLE) && pipe(pr) == -1) || ((modef & FMODE_WRITABLE) && pipe(pw) == -1)) rb_sys_fail(pname); doexec = (strcmp("-", pname) != 0); if (!doexec) { fflush(stdin); /* is it really needed? */ fflush(stdout); fflush(stderr); } retry: switch ((pid = fork())) { case 0: /* child */ if (modef & FMODE_READABLE) { close(pr[0]); if (pr[1] != 1) { dup2(pr[1], 1); close(pr[1]); } } if (modef & FMODE_WRITABLE) { close(pw[1]); if (pw[0] != 0) { dup2(pw[0], 0); close(pw[0]); } } if (doexec) { int fd; for (fd = 3; fd < NOFILE; fd++) close(fd); rb_proc_exec(pname); fprintf(stderr, "%s:%d: command not found: %s\n", ruby_sourcefile, ruby_sourceline, pname); _exit(127); } rb_io_synchronized(RFILE(orig_stdout)->fptr); rb_io_synchronized(RFILE(orig_stderr)->fptr); return Qnil; case -1: /* fork failed */ if (errno == EAGAIN) { rb_thread_sleep(1); goto retry; } close(pr[0]); close(pw[1]); rb_sys_fail(pname); break; default: /* parent */ if (pid < 0) rb_sys_fail(pname); else { VALUE port = io_alloc(rb_cIO); MakeOpenFile(port, fptr); fptr->mode = modef; fptr->mode |= FMODE_SYNC; fptr->pid = pid; if (modef & FMODE_READABLE) { close(pr[1]); fptr->f = rb_fdopen(pr[0], "r"); } if (modef & FMODE_WRITABLE) { FILE *f = rb_fdopen(pw[1], "w"); close(pw[0]); if (fptr->f) fptr->f2 = f; else fptr->f = f; } #if defined (__CYGWIN__) fptr->finalize = pipe_finalize; pipe_add_fptr(fptr); #endif return port; } } #endif #endif } static VALUE rb_io_popen(str, argc, argv, klass) char *str; int argc; VALUE *argv; VALUE klass; { char *mode; VALUE pname, pmode, port; char mbuf[4]; if (rb_scan_args(argc, argv, "11", &pname, &pmode) == 1) { mode = "r"; } else if (FIXNUM_P(pmode)) { mode = rb_io_modenum_mode(FIX2INT(pmode), mbuf); } else { mode = StringValuePtr(pmode); } SafeStringValue(pname); port = pipe_open(str, mode); if (NIL_P(port)) { /* child */ if (rb_block_given_p()) { rb_yield(Qnil); fflush(stdout); fflush(stderr); _exit(0); } return Qnil; } RBASIC(port)->klass = klass; if (rb_block_given_p()) { return rb_ensure(rb_yield, port, io_close, port); } return port; } static VALUE rb_io_s_popen(argc, argv, klass) int argc; VALUE *argv; VALUE klass; { char *str = 0; if (argc >= 1) { str = StringValuePtr(argv[0]); } return rb_io_popen(str, argc, argv, klass); } static VALUE rb_open_file(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE fname, vmode, perm; char *path, *mode; int flags, fmode; rb_scan_args(argc, argv, "12", &fname, &vmode, &perm); SafeStringValue(fname); path = RSTRING(fname)->ptr; if (FIXNUM_P(vmode) || !NIL_P(perm)) { if (FIXNUM_P(vmode)) { flags = NUM2INT(vmode); } else { SafeStringValue(vmode); flags = rb_io_mode_modenum(RSTRING(vmode)->ptr); } fmode = NIL_P(perm) ? 0666 : NUM2INT(perm); rb_file_sysopen_internal(io, path, flags, fmode); } else { mode = NIL_P(vmode) ? "r" : StringValuePtr(vmode); rb_file_open_internal(io, RSTRING(fname)->ptr, mode); } return io; } static VALUE rb_io_s_open(argc, argv, klass) int argc; VALUE *argv; VALUE klass; { VALUE io = rb_class_new_instance(argc, argv, klass); if (rb_block_given_p()) { return rb_ensure(rb_yield, io, io_close, io); } return io; } static VALUE rb_io_s_sysopen(argc, argv) int argc; VALUE *argv; { VALUE fname, vmode, perm; int flags, fmode, fd; rb_scan_args(argc, argv, "12", &fname, &vmode, &perm); SafeStringValue(fname); if (NIL_P(vmode)) flags = O_RDONLY; else if (FIXNUM_P(vmode)) flags = NUM2INT(vmode); else { SafeStringValue(vmode); flags = rb_io_mode_modenum(RSTRING(vmode)->ptr); } if (NIL_P(perm)) fmode = 0666; else fmode = NUM2INT(perm); fd = rb_sysopen(RSTRING(fname)->ptr, flags, fmode); return INT2NUM(fd); } static VALUE rb_f_open(argc, argv) int argc; VALUE *argv; { if (argc >= 1) { char *str = StringValuePtr(argv[0]); if (str[0] == '|') { return rb_io_popen(str+1, argc, argv, rb_cIO); } } return rb_io_s_open(argc, argv, rb_cFile); } static VALUE rb_io_open(fname, mode) char *fname, *mode; { if (fname[0] == '|') { return pipe_open(fname+1, mode); } else { return rb_file_open(fname, mode); } } static VALUE rb_io_get_io(io) VALUE io; { return rb_convert_type(io, T_FILE, "IO", "to_io"); } static char* rb_io_mode_string(fptr) OpenFile *fptr; { switch (fptr->mode & FMODE_READWRITE) { case FMODE_READABLE: default: return "r"; case FMODE_WRITABLE: return "w"; case FMODE_READWRITE: return "r+"; } } static VALUE io_reopen(io, nfile) VALUE io, nfile; { OpenFile *fptr, *orig; char *mode; int fd, fd2; off_t pos = 0; nfile = rb_io_get_io(nfile); if (rb_safe_level() >= 4 && (!OBJ_TAINTED(io) || !OBJ_TAINTED(nfile))) { rb_raise(rb_eSecurityError, "Insecure: can't reopen"); } GetOpenFile(io, fptr); GetOpenFile(nfile, orig); if (fptr == orig) return io; if (orig->mode & FMODE_READABLE) { pos = io_tell(orig); } if (orig->f2) { io_fflush(orig->f2, orig); } else if (orig->mode & FMODE_WRITABLE) { io_fflush(orig->f, orig); } if (fptr->mode & FMODE_WRITABLE) { io_fflush(GetWriteFile(fptr), fptr); } /* copy OpenFile structure */ fptr->mode = orig->mode; fptr->pid = orig->pid; fptr->lineno = orig->lineno; if (fptr->path) free(fptr->path); if (orig->path) fptr->path = strdup(orig->path); else fptr->path = 0; fptr->finalize = orig->finalize; mode = rb_io_mode_string(fptr); fd = fileno(fptr->f); fd2 = fileno(orig->f); if (fd != fd2) { if (fptr->f == stdin || fptr->f == stdout || fptr->f == stderr) { clearerr(fptr->f); /* need to keep stdio objects */ if (dup2(fd2, fd) < 0) rb_sys_fail(orig->path); } else { fclose(fptr->f); if (dup2(fd2, fd) < 0) rb_sys_fail(orig->path); fptr->f = rb_fdopen(fd, mode); } rb_thread_fd_close(fd); if ((orig->mode & FMODE_READABLE) && pos >= 0) { io_seek(fptr, pos, SEEK_SET); io_seek(orig, pos, SEEK_SET); } } if (fptr->f2 && fd != fileno(fptr->f2)) { fd = fileno(fptr->f2); if (!orig->f2) { fclose(fptr->f2); rb_thread_fd_close(fd); fptr->f2 = 0; } else if (fd != (fd2 = fileno(orig->f2))) { fclose(fptr->f2); rb_thread_fd_close(fd); if (dup2(fd2, fd) < 0) rb_sys_fail(orig->path); fptr->f2 = rb_fdopen(fd, "w"); } } if (fptr->mode & FMODE_BINMODE) { rb_io_binmode(io); } RBASIC(io)->klass = RBASIC(nfile)->klass; return io; } static VALUE rb_io_reopen(argc, argv, file) int argc; VALUE *argv; VALUE file; { VALUE fname, nmode; char *mode; OpenFile *fptr; rb_secure(4); if (rb_scan_args(argc, argv, "11", &fname, &nmode) == 1) { if (TYPE(fname) != T_STRING) { /* fname must be IO */ return io_reopen(file, fname); } } SafeStringValue(fname); rb_io_taint_check(file); fptr = RFILE(file)->fptr; if (!fptr) { fptr = RFILE(file)->fptr = ALLOC(OpenFile); } if (!NIL_P(nmode)) { mode = StringValuePtr(nmode); } else { mode = ALLOCA_N(char, 4); rb_io_flags_mode(fptr->mode, mode); } if (fptr->path) { free(fptr->path); fptr->path = 0; } fptr->path = strdup(RSTRING(fname)->ptr); fptr->mode = rb_io_mode_flags(mode); if (!fptr->f) { fptr->f = rb_fopen(RSTRING(fname)->ptr, mode); if (fptr->f2) { fclose(fptr->f2); fptr->f2 = 0; } return file; } if (freopen(RSTRING(fname)->ptr, mode, fptr->f) == 0) { rb_sys_fail(fptr->path); } #ifdef USE_SETVBUF if (setvbuf(fptr->f, NULL, _IOFBF, 0) != 0) rb_warn("setvbuf() can't be honered for %s", RSTRING(fname)->ptr); #endif if (fptr->f2) { if (freopen(RSTRING(fname)->ptr, "w", fptr->f2) == 0) { rb_sys_fail(fptr->path); } } return file; } static VALUE rb_io_init_copy(dest, io) VALUE dest, io; { OpenFile *fptr, *orig; int fd; char *mode; io = rb_io_get_io(io); if (dest == io) return dest; GetOpenFile(io, orig); MakeOpenFile(dest, fptr); if (orig->f2) { io_fflush(orig->f2, orig); fseeko(orig->f, 0L, SEEK_CUR); } else if (orig->mode & FMODE_WRITABLE) { io_fflush(orig->f, orig); } else { fseeko(orig->f, 0L, SEEK_CUR); } /* copy OpenFile structure */ fptr->mode = orig->mode; fptr->pid = orig->pid; fptr->lineno = orig->lineno; if (orig->path) fptr->path = strdup(orig->path); fptr->finalize = orig->finalize; switch (fptr->mode & FMODE_READWRITE) { case FMODE_READABLE: default: mode = "r"; break; case FMODE_WRITABLE: mode = "w"; break; case FMODE_READWRITE: if (orig->f2) mode = "r"; else mode = "r+"; break; } fd = ruby_dup(fileno(orig->f)); fptr->f = rb_fdopen(fd, mode); if (orig->f2) { if (fileno(orig->f) != fileno(orig->f2)) { fd = ruby_dup(fileno(orig->f2)); } fptr->f2 = rb_fdopen(fd, "w"); } if (fptr->mode & FMODE_BINMODE) { rb_io_binmode(dest); } return dest; } VALUE rb_io_printf(argc, argv, out) int argc; VALUE argv[]; VALUE out; { rb_io_write(out, rb_f_sprintf(argc, argv)); return Qnil; } static VALUE rb_f_printf(argc, argv) int argc; VALUE argv[]; { VALUE out; if (argc == 0) return Qnil; if (TYPE(argv[0]) == T_STRING) { out = rb_stdout; } else { out = argv[0]; argv++; argc--; } rb_io_write(out, rb_f_sprintf(argc, argv)); return Qnil; } VALUE rb_io_print(argc, argv, out) int argc; VALUE *argv; VALUE out; { int i; VALUE line; /* if no argument given, print `$_' */ if (argc == 0) { argc = 1; line = rb_lastline_get(); argv = &line; } for (i=0; i0) { rb_io_write(out, rb_output_fs); } switch (TYPE(argv[i])) { case T_NIL: rb_io_write(out, rb_str_new2("nil")); break; default: rb_io_write(out, argv[i]); break; } } if (!NIL_P(rb_output_rs)) { rb_io_write(out, rb_output_rs); } return Qnil; } static VALUE rb_f_print(argc, argv) int argc; VALUE *argv; { rb_io_print(argc, argv, rb_stdout); return Qnil; } static VALUE rb_io_putc(io, ch) VALUE io, ch; { char c = NUM2CHR(ch); rb_io_write(io, rb_str_new(&c, 1)); return ch; } static VALUE rb_f_putc(recv, ch) VALUE recv, ch; { return rb_io_putc(rb_stdout, ch); } static VALUE io_puts_ary(ary, out) VALUE ary, out; { VALUE tmp; long i; for (i=0; ilen; i++) { tmp = RARRAY(ary)->ptr[i]; if (rb_inspecting_p(tmp)) { tmp = rb_str_new2("[...]"); } rb_io_puts(1, &tmp, out); } return Qnil; } VALUE rb_io_puts(argc, argv, out) int argc; VALUE *argv; VALUE out; { int i; VALUE line; /* if no argument given, print newline. */ if (argc == 0) { rb_io_write(out, rb_default_rs); return Qnil; } for (i=0; ilen == 0 || RSTRING(line)->ptr[RSTRING(line)->len-1] != '\n') { rb_io_write(out, rb_default_rs); } } return Qnil; } static VALUE rb_f_puts(argc, argv) int argc; VALUE *argv; { rb_io_puts(argc, argv, rb_stdout); return Qnil; } void rb_p(obj) /* for debug print within C code */ VALUE obj; { rb_io_write(rb_stdout, rb_obj_as_string(rb_inspect(obj))); rb_io_write(rb_stdout, rb_default_rs); } static VALUE rb_f_p(argc, argv) int argc; VALUE *argv; { int i; for (i=0; if = f; fp->mode = mode; return io; } static void prep_path(io, path) VALUE io; char *path; { OpenFile *fptr; GetOpenFile(io, fptr); if (fptr->path) rb_bug("illegal prep_path() call"); fptr->path = strdup(path); } static VALUE rb_io_initialize(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE fnum, mode; OpenFile *fp; int fd, flags; char mbuf[4]; rb_secure(4); rb_scan_args(argc, argv, "11", &fnum, &mode); fd = NUM2INT(fnum); if (argc == 2) { if (FIXNUM_P(mode)) { flags = FIX2LONG(mode); } else { SafeStringValue(mode); flags = rb_io_mode_modenum(RSTRING(mode)->ptr); } } else { #if defined(HAVE_FCNTL) && defined(F_GETFL) flags = fcntl(fd, F_GETFL); #else flags = O_RDONLY; #endif } MakeOpenFile(io, fp); fp->mode = rb_io_modenum_flags(flags); fp->f = rb_fdopen(fd, rb_io_modenum_mode(flags, mbuf)); return io; } static VALUE rb_file_initialize(argc, argv, io) int argc; VALUE *argv; VALUE io; { if (RFILE(io)->fptr) { rb_io_close_m(io); free(RFILE(io)->fptr); RFILE(io)->fptr = 0; } if (0 < argc && argc < 3) { VALUE fd = rb_check_convert_type(argv[0], T_FIXNUM, "Fixnum", "to_int"); if (!NIL_P(fd)) { argv[0] = fd; return rb_io_initialize(argc, argv, io); } } rb_open_file(argc, argv, io); return io; } static VALUE rb_io_s_new(argc, argv, klass) int argc; VALUE *argv; VALUE klass; { if (rb_block_given_p()) { char *cname = rb_class2name(klass); rb_warn("%s::new() does not take block; use %s::open() instead", cname, cname); } return rb_class_new_instance(argc, argv, klass); } static VALUE rb_io_s_for_fd(argc, argv, klass) int argc; VALUE *argv; VALUE klass; { VALUE io = rb_obj_alloc(klass); rb_io_initialize(argc, argv, io); return io; } static int binmode = 0; static VALUE argf_forward() { return rb_funcall3(current_file, ruby_frame->last_func, ruby_frame->argc, ruby_frame->argv); } #define ARGF_FORWARD() do { if (TYPE(current_file) != T_FILE) return argf_forward(); } while (0) #define NEXT_ARGF_FORWARD() do {\ if (!next_argv()) return Qnil;\ ARGF_FORWARD();\ } while (0) static void argf_close(file) VALUE file; { if (TYPE(file) == T_FILE) rb_io_close(file); else rb_funcall3(file, rb_intern("close"), 0, 0); } static int next_argv() { extern VALUE rb_argv; char *fn; OpenFile *fptr; int stdout_binmode = 0; if (TYPE(rb_stdout) == T_FILE) { GetOpenFile(rb_stdout, fptr); if (fptr->mode & FMODE_BINMODE) stdout_binmode = 1; } if (init_p == 0) { if (RARRAY(rb_argv)->len > 0) { next_p = 1; } else { next_p = -1; } init_p = 1; gets_lineno = 0; } if (next_p == 1) { next_p = 0; retry: if (RARRAY(rb_argv)->len > 0) { filename = rb_ary_shift(rb_argv); fn = StringValuePtr(filename); if (strlen(fn) == 1 && fn[0] == '-') { current_file = rb_stdin; if (ruby_inplace_mode) { rb_warn("Can't do inplace edit for stdio; skipping"); goto retry; } } else { FILE *fr = rb_fopen(fn, "r"); if (ruby_inplace_mode) { struct stat st, st2; VALUE str; FILE *fw; if (TYPE(rb_stdout) == T_FILE && rb_stdout != orig_stdout) { rb_io_close(rb_stdout); } fstat(fileno(fr), &st); if (*ruby_inplace_mode) { str = rb_str_new2(fn); #ifdef NO_LONG_FNAME ruby_add_suffix(str, ruby_inplace_mode); #else rb_str_cat2(str, ruby_inplace_mode); #endif #ifdef NO_SAFE_RENAME (void)fclose(fr); (void)unlink(RSTRING(str)->ptr); (void)rename(fn, RSTRING(str)->ptr); fr = rb_fopen(RSTRING(str)->ptr, "r"); #else if (rename(fn, RSTRING(str)->ptr) < 0) { rb_warn("Can't rename %s to %s: %s, skipping file", fn, RSTRING(str)->ptr, strerror(errno)); fclose(fr); goto retry; } #endif } else { #ifdef NO_SAFE_RENAME rb_fatal("Can't do inplace edit without backup"); #else if (unlink(fn) < 0) { rb_warn("Can't remove %s: %s, skipping file", fn, strerror(errno)); fclose(fr); goto retry; } #endif } fw = rb_fopen(fn, "w"); #ifndef NO_SAFE_RENAME fstat(fileno(fw), &st2); #ifdef HAVE_FCHMOD fchmod(fileno(fw), st.st_mode); #else chmod(fn, st.st_mode); #endif if (st.st_uid!=st2.st_uid || st.st_gid!=st2.st_gid) { fchown(fileno(fw), st.st_uid, st.st_gid); } #endif rb_stdout = prep_stdio(fw, FMODE_WRITABLE, rb_cFile); prep_path(rb_stdout, fn); if (stdout_binmode) rb_io_binmode(rb_stdout); } current_file = prep_stdio(fr, FMODE_READABLE, rb_cFile); prep_path(current_file, fn); } if (binmode) rb_io_binmode(current_file); } else { init_p = 0; return Qfalse; } } else if (next_p == -1) { current_file = rb_stdin; filename = rb_str_new2("-"); if (ruby_inplace_mode) { rb_warn("Can't do inplace edit for stdio"); rb_stdout = orig_stdout; } } return Qtrue; } static VALUE argf_getline(argc, argv) int argc; VALUE *argv; { VALUE line; retry: if (!next_argv()) return Qnil; if (argc == 0 && rb_rs == rb_default_rs) { line = rb_io_gets(current_file); } else { VALUE rs; OpenFile *fptr; if (argc == 0) { rs = rb_rs; } else { rb_scan_args(argc, argv, "1", &rs); } GetOpenFile(current_file, fptr); line = rb_io_getline(rs, fptr); } if (NIL_P(line) && next_p != -1) { argf_close(current_file); next_p = 1; goto retry; } if (!NIL_P(line)) { gets_lineno++; lineno = INT2FIX(gets_lineno); } return line; } static VALUE rb_f_gets(argc, argv) int argc; VALUE *argv; { VALUE line; if (!next_argv()) return Qnil; if (TYPE(current_file) != T_FILE) { line = rb_funcall3(current_file, rb_intern("gets"), argc, argv); } else { line = argf_getline(argc, argv); } rb_lastline_set(line); return line; } VALUE rb_gets() { VALUE line; if (rb_rs != rb_default_rs) { return rb_f_gets(0, 0); } retry: if (!next_argv()) return Qnil; line = rb_io_gets(current_file); if (NIL_P(line) && next_p != -1) { argf_close(current_file); next_p = 1; goto retry; } rb_lastline_set(line); if (!NIL_P(line)) { gets_lineno++; lineno = INT2FIX(gets_lineno); } return line; } static VALUE rb_f_readline(argc, argv) int argc; VALUE *argv; { VALUE line; NEXT_ARGF_FORWARD(); line = rb_f_gets(argc, argv); if (NIL_P(line)) { rb_eof_error(); } return line; } static VALUE rb_f_getc() { rb_warn("getc is obsolete; use STDIN.getc instead"); if (TYPE(rb_stdin) != T_FILE) { return rb_funcall3(rb_stdin, rb_intern("getc"), 0, 0); } return rb_io_getc(rb_stdin); } static VALUE rb_f_readlines(argc, argv) int argc; VALUE *argv; { VALUE line, ary; NEXT_ARGF_FORWARD(); ary = rb_ary_new(); while (!NIL_P(line = argf_getline(argc, argv))) { rb_ary_push(ary, line); } return ary; } static VALUE rb_f_backquote(obj, str) VALUE obj, str; { VALUE port, result; OpenFile *fptr; SafeStringValue(str); port = pipe_open(RSTRING(str)->ptr, "r"); if (NIL_P(port)) return rb_str_new(0,0); GetOpenFile(port, fptr); result = read_all(fptr, remain_size(fptr), Qnil); rb_io_close(port); return result; } #ifdef HAVE_SYS_SELECT_H #include #endif static VALUE rb_f_select(argc, argv, obj) int argc; VALUE *argv; VALUE obj; { VALUE read, write, except, timeout, res, list; fd_set rset, wset, eset, pset; fd_set *rp, *wp, *ep; struct timeval *tp, timerec; OpenFile *fptr; long i; int max = 0, n; int interrupt_flag = 0; int pending = 0; rb_scan_args(argc, argv, "13", &read, &write, &except, &timeout); if (NIL_P(timeout)) { tp = 0; } else { timerec = rb_time_interval(timeout); tp = &timerec; } FD_ZERO(&pset); if (!NIL_P(read)) { Check_Type(read, T_ARRAY); rp = &rset; FD_ZERO(rp); for (i=0; ilen; i++) { GetOpenFile(rb_io_get_io(RARRAY(read)->ptr[i]), fptr); FD_SET(fileno(fptr->f), rp); if (READ_DATA_PENDING(fptr->f)) { /* check for buffered data */ pending++; FD_SET(fileno(fptr->f), &pset); } if (max < fileno(fptr->f)) max = fileno(fptr->f); } if (pending) { /* no blocking if there's buffered data */ timerec.tv_sec = timerec.tv_usec = 0; tp = &timerec; } } else rp = 0; if (!NIL_P(write)) { Check_Type(write, T_ARRAY); wp = &wset; FD_ZERO(wp); for (i=0; ilen; i++) { GetOpenFile(rb_io_get_io(RARRAY(write)->ptr[i]), fptr); FD_SET(fileno(fptr->f), wp); if (max < fileno(fptr->f)) max = fileno(fptr->f); if (fptr->f2) { FD_SET(fileno(fptr->f2), wp); if (max < fileno(fptr->f2)) max = fileno(fptr->f2); } } } else wp = 0; if (!NIL_P(except)) { Check_Type(except, T_ARRAY); ep = &eset; FD_ZERO(ep); for (i=0; ilen; i++) { GetOpenFile(rb_io_get_io(RARRAY(except)->ptr[i]), fptr); FD_SET(fileno(fptr->f), ep); if (max < fileno(fptr->f)) max = fileno(fptr->f); if (fptr->f2) { FD_SET(fileno(fptr->f2), ep); if (max < fileno(fptr->f2)) max = fileno(fptr->f2); } } } else { ep = 0; } max++; n = rb_thread_select(max, rp, wp, ep, tp); if (n < 0) { rb_sys_fail(0); } if (!pending && n == 0) return Qnil; /* returns nil on timeout */ res = rb_ary_new2(3); rb_ary_push(res, rp?rb_ary_new():rb_ary_new2(0)); rb_ary_push(res, wp?rb_ary_new():rb_ary_new2(0)); rb_ary_push(res, ep?rb_ary_new():rb_ary_new2(0)); if (interrupt_flag == 0) { if (rp) { list = RARRAY(res)->ptr[0]; for (i=0; i< RARRAY(read)->len; i++) { GetOpenFile(rb_io_get_io(RARRAY(read)->ptr[i]), fptr); if (FD_ISSET(fileno(fptr->f), rp) || FD_ISSET(fileno(fptr->f), &pset)) { rb_ary_push(list, RARRAY(read)->ptr[i]); } } } if (wp) { list = RARRAY(res)->ptr[1]; for (i=0; i< RARRAY(write)->len; i++) { GetOpenFile(rb_io_get_io(RARRAY(write)->ptr[i]), fptr); if (FD_ISSET(fileno(fptr->f), wp)) { rb_ary_push(list, RARRAY(write)->ptr[i]); } else if (fptr->f2 && FD_ISSET(fileno(fptr->f2), wp)) { rb_ary_push(list, RARRAY(write)->ptr[i]); } } } if (ep) { list = RARRAY(res)->ptr[2]; for (i=0; i< RARRAY(except)->len; i++) { GetOpenFile(rb_io_get_io(RARRAY(except)->ptr[i]), fptr); if (FD_ISSET(fileno(fptr->f), ep)) { rb_ary_push(list, RARRAY(except)->ptr[i]); } else if (fptr->f2 && FD_ISSET(fileno(fptr->f2), ep)) { rb_ary_push(list, RARRAY(except)->ptr[i]); } } } } return res; /* returns an empty array on interrupt */ } #if !defined(MSDOS) && !defined(__human68k__) static int io_cntl(fd, cmd, narg, io_p) int fd, cmd, io_p; long narg; { int retval; #ifdef HAVE_FCNTL TRAP_BEG; # if defined(__CYGWIN__) retval = io_p?ioctl(fd, cmd, (void*)narg):fcntl(fd, cmd, narg); # else retval = io_p?ioctl(fd, cmd, narg):fcntl(fd, cmd, narg); # endif TRAP_END; #else if (!io_p) { rb_notimplement(); } TRAP_BEG; retval = ioctl(fd, cmd, narg); TRAP_END; #endif return retval; } #endif static VALUE rb_io_ctl(io, req, arg, io_p) VALUE io, req, arg; int io_p; { #if !defined(MSDOS) && !defined(__human68k__) int cmd = NUM2ULONG(req); OpenFile *fptr; long len = 0; long narg = 0; int retval; rb_secure(2); GetOpenFile(io, fptr); if (NIL_P(arg) || arg == Qfalse) { narg = 0; } else if (FIXNUM_P(arg)) { narg = FIX2LONG(arg); } else if (arg == Qtrue) { narg = 1; } else { VALUE tmp = rb_check_string_type(arg); if (NIL_P(tmp)) { narg = NUM2LONG(arg); } else { arg = tmp; #ifdef IOCPARM_MASK #ifndef IOCPARM_LEN #define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) #endif #endif #ifdef IOCPARM_LEN len = IOCPARM_LEN(cmd); /* on BSDish systems we're safe */ #else len = 256; /* otherwise guess at what's safe */ #endif rb_str_modify(arg); if (len <= RSTRING(arg)->len) { len = RSTRING(arg)->len; } if (RSTRING(arg)->len < len) { rb_str_resize(arg, len+1); } RSTRING(arg)->ptr[len] = 17; /* a little sanity check here */ narg = (long)RSTRING(arg)->ptr; } } retval = io_cntl(fileno(fptr->f), cmd, narg, io_p); if (retval < 0) rb_sys_fail(fptr->path); if (TYPE(arg) == T_STRING && RSTRING(arg)->ptr[len] != 17) { rb_raise(rb_eArgError, "return value overflowed string"); } if (fptr->f2 && fileno(fptr->f) != fileno(fptr->f2)) { /* call on f2 too; ignore result */ io_cntl(fileno(fptr->f2), cmd, narg, io_p); } return INT2NUM(retval); #else rb_notimplement(); return Qnil; /* not reached */ #endif } static VALUE rb_io_ioctl(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE req, arg; rb_scan_args(argc, argv, "11", &req, &arg); return rb_io_ctl(io, req, arg, 1); } static VALUE rb_io_fcntl(argc, argv, io) int argc; VALUE *argv; VALUE io; { #ifdef HAVE_FCNTL VALUE req, arg; rb_scan_args(argc, argv, "11", &req, &arg); return rb_io_ctl(io, req, arg, 0); #else rb_notimplement(); return Qnil; /* not reached */ #endif } static VALUE rb_f_syscall(argc, argv) int argc; VALUE *argv; { #if defined(HAVE_SYSCALL) && !defined(__CHECKER__) #ifdef atarist unsigned long arg[14]; /* yes, we really need that many ! */ #else unsigned long arg[8]; #endif int retval = -1; int i = 1; int items = argc - 1; /* This probably won't work on machines where sizeof(long) != sizeof(int) * or where sizeof(long) != sizeof(char*). But such machines will * not likely have syscall implemented either, so who cares? */ rb_secure(2); if (argc == 0) rb_raise(rb_eArgError, "too few arguments for syscall"); arg[0] = NUM2LONG(argv[0]); argv++; while (items--) { VALUE v = rb_check_string_type(*argv); if (!NIL_P(v)) { StringValue(v); rb_str_modify(v); arg[i] = (unsigned long)RSTRING(v)->ptr; } else { arg[i] = (unsigned long)NUM2LONG(*argv); } argv++; i++; } TRAP_BEG; switch (argc) { case 1: retval = syscall(arg[0]); break; case 2: retval = syscall(arg[0],arg[1]); break; case 3: retval = syscall(arg[0],arg[1],arg[2]); break; case 4: retval = syscall(arg[0],arg[1],arg[2],arg[3]); break; case 5: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4]); break; case 6: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5]); break; case 7: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6]); break; case 8: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7]); break; #ifdef atarist case 9: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8]); break; case 10: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8], arg[9]); break; case 11: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8], arg[9], arg[10]); break; case 12: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8], arg[9], arg[10], arg[11]); break; case 13: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8], arg[9], arg[10], arg[11], arg[12]); break; case 14: retval = syscall(arg[0],arg[1],arg[2],arg[3],arg[4],arg[5],arg[6], arg[7], arg[8], arg[9], arg[10], arg[11], arg[12], arg[13]); break; #endif /* atarist */ } TRAP_END; if (retval < 0) rb_sys_fail(0); return INT2NUM(retval); #else rb_notimplement(); return Qnil; /* not reached */ #endif } static VALUE io_new_instance _((VALUE)); static VALUE io_new_instance(args) VALUE args; { return rb_class_new_instance(2, (VALUE*)args+1, *(VALUE*)args); } static VALUE rb_io_s_pipe(klass) VALUE klass; { #ifndef __human68k__ int pipes[2], state; VALUE r, w, args[3]; #ifdef _WIN32 if (_pipe(pipes, 1024, O_BINARY) == -1) #else if (pipe(pipes) == -1) #endif rb_sys_fail(0); args[0] = klass; args[1] = INT2NUM(pipes[0]); args[2] = INT2FIX(O_RDONLY); r = rb_protect(io_new_instance, (VALUE)args, &state); if (state) { close(pipes[0]); close(pipes[1]); rb_jump_tag(state); } args[1] = INT2NUM(pipes[1]); args[2] = INT2FIX(O_WRONLY); w = rb_protect(io_new_instance, (VALUE)args, &state); if (state) { close(pipes[1]); if (!NIL_P(r)) rb_io_close(r); rb_jump_tag(state); } rb_io_synchronized(RFILE(w)->fptr); return rb_assoc_new(r, w); #else rb_notimplement(); return Qnil; /* not reached */ #endif } struct foreach_arg { int argc; VALUE sep; VALUE io; OpenFile *fptr; }; static VALUE io_s_foreach(arg) struct foreach_arg *arg; { VALUE str; while (!NIL_P(str = rb_io_getline(arg->sep, arg->fptr))) { rb_yield(str); } return Qnil; } static VALUE rb_io_s_foreach(argc, argv) int argc; VALUE *argv; { VALUE fname, io; OpenFile *fptr; struct foreach_arg arg; rb_scan_args(argc, argv, "11", &fname, &arg.sep); SafeStringValue(fname); if (argc == 1) { arg.sep = rb_default_rs; } io = rb_io_open(RSTRING(fname)->ptr, "r"); if (NIL_P(io)) return Qnil; GetOpenFile(io, fptr); arg.fptr = fptr; return rb_ensure(io_s_foreach, (VALUE)&arg, rb_io_close, io); } static VALUE io_s_readlines(arg) struct foreach_arg *arg; { return rb_io_readlines(arg->argc, &arg->sep, arg->io); } static VALUE rb_io_s_readlines(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE fname; struct foreach_arg arg; rb_scan_args(argc, argv, "11", &fname, &arg.sep); SafeStringValue(fname); arg.argc = argc - 1; arg.io = rb_io_open(RSTRING(fname)->ptr, "r"); if (NIL_P(arg.io)) return Qnil; return rb_ensure(io_s_readlines, (VALUE)&arg, rb_io_close, arg.io); } static VALUE io_s_read(arg) struct foreach_arg *arg; { return io_read(arg->argc, &arg->sep, arg->io); } static VALUE rb_io_s_read(argc, argv, io) int argc; VALUE *argv; VALUE io; { VALUE fname, offset; struct foreach_arg arg; rb_scan_args(argc, argv, "12", &fname, &arg.sep, &offset); SafeStringValue(fname); arg.argc = argc ? 1 : 0; arg.io = rb_io_open(RSTRING(fname)->ptr, "r"); if (NIL_P(arg.io)) return Qnil; if (!NIL_P(offset)) { rb_io_seek(arg.io, offset, SEEK_SET); } return rb_ensure(io_s_read, (VALUE)&arg, rb_io_close, arg.io); } static VALUE argf_tell() { if (!next_argv()) { rb_raise(rb_eArgError, "no stream to tell"); } ARGF_FORWARD(); return rb_io_tell(current_file); } static VALUE argf_seek_m(argc, argv, self) int argc; VALUE *argv; VALUE self; { if (!next_argv()) { rb_raise(rb_eArgError, "no stream to seek"); } ARGF_FORWARD(); return rb_io_seek_m(argc, argv, current_file); } static VALUE argf_set_pos(self, offset) VALUE self, offset; { if (!next_argv()) { rb_raise(rb_eArgError, "no stream to set position"); } ARGF_FORWARD(); return rb_io_set_pos(current_file, offset); } static VALUE argf_rewind() { if (!next_argv()) { rb_raise(rb_eArgError, "no stream to rewind"); } ARGF_FORWARD(); return rb_io_rewind(current_file); } static VALUE argf_fileno() { if (!next_argv()) { rb_raise(rb_eArgError, "no stream"); } ARGF_FORWARD(); return rb_io_fileno(current_file); } static VALUE argf_to_io() { next_argv(); ARGF_FORWARD(); return current_file; } static VALUE argf_eof() { if (current_file) { if (init_p == 0) return Qtrue; ARGF_FORWARD(); if (rb_io_eof(current_file)) { next_p = 1; return Qtrue; } } return Qfalse; } static VALUE argf_read(argc, argv) int argc; VALUE *argv; { VALUE tmp, str; long len = 0; if (argc == 1 && !NIL_P(argv[0])) len = NUM2LONG(argv[0]); str = Qnil; retry: if (!next_argv()) { if (NIL_P(str)) { VALUE length; rb_scan_args(argc, argv, "02", &length, &str); if (NIL_P(str)) return rb_str_new(0,0); StringValue(str); rb_str_resize(str,0); } return str; } if (TYPE(current_file) != T_FILE) { tmp = argf_forward(); } else { tmp = io_read(argc, argv, current_file); } if (NIL_P(str)) str = tmp; else rb_str_append(str, tmp); if (NIL_P(tmp) || argc == 0) { if (next_p != -1) { argf_close(current_file); next_p = 1; goto retry; } } else if (argc == 1) { if (RSTRING(str)->len < len) { len -= RSTRING(str)->len; argv[0] = INT2NUM(len); goto retry; } } return str; } static VALUE argf_getc() { VALUE byte; retry: if (!next_argv()) return Qnil; if (TYPE(current_file) != T_FILE) { byte = rb_funcall3(current_file, rb_intern("getc"), 0, 0); } else { byte = rb_io_getc(current_file); } if (NIL_P(byte) && next_p != -1) { argf_close(current_file); next_p = 1; goto retry; } return byte; } static VALUE argf_readchar() { VALUE c; NEXT_ARGF_FORWARD(); c = argf_getc(); if (NIL_P(c)) { rb_eof_error(); } return c; } static VALUE argf_each_line(argc, argv) int argc; VALUE *argv; { VALUE str; if (!next_argv()) return Qnil; if (TYPE(current_file) != T_FILE) { for (;;) { if (!next_argv()) return argf; rb_iterate(rb_each, current_file, rb_yield, 0); next_p = 1; } } while (!NIL_P(str = argf_getline(argc, argv))) { rb_yield(str); } return argf; } static VALUE argf_each_byte() { VALUE byte; while (!NIL_P(byte = argf_getc())) { rb_yield(byte); } return Qnil; } static VALUE argf_filename() { next_argv(); return filename; } static VALUE argf_file() { next_argv(); return current_file; } static VALUE argf_binmode() { binmode = 1; next_argv(); ARGF_FORWARD(); rb_io_binmode(current_file); return argf; } static VALUE argf_skip() { if (next_p != -1) { argf_close(current_file); next_p = 1; } return argf; } static VALUE argf_close_m() { next_argv(); argf_close(current_file); if (next_p != -1) { next_p = 1; } gets_lineno = 0; return argf; } static VALUE argf_closed() { next_argv(); ARGF_FORWARD(); return rb_io_closed(current_file); } static VALUE argf_to_s() { return rb_str_new2("ARGF"); } static VALUE opt_i_get() { if (!ruby_inplace_mode) return Qnil; return rb_str_new2(ruby_inplace_mode); } static void opt_i_set(val) VALUE val; { if (!RTEST(val)) { if (ruby_inplace_mode) free(ruby_inplace_mode); ruby_inplace_mode = 0; return; } StringValue(val); if (ruby_inplace_mode) free(ruby_inplace_mode); ruby_inplace_mode = 0; ruby_inplace_mode = strdup(RSTRING(val)->ptr); } /* * Class IO is the basis for all input and output in Ruby. * An I/O stream may be duplexed (that is, bidirectional), and * so may use more than one native operating system stream. * * Many of the examples in this section use class File, * the only standard subclass of IO. The two classes are * closely associated. * * As used in this section, portname may take any of the * following forms. * * * A plain string represents a filename suitable for the underlying * operating system. * * * A string starting with ``|'' indicates a subprocess. * The remainder of the string following the ``|'' is * invoked as a process with appropriate input/output channels * connected to it. * * * A string equal to ``|-'' will create another Ruby * instance as a subprocess. * * Ruby will convert pathnames between different operating system * conventions if possible. For instance, on a Windows system the * filename ``/gumby/ruby/test.rb'' will be opened as * ``\gumby\ruby\test.rb''. When specifying a * Windows-style filename in a Ruby string, remember to escape the * backslashes: * * "c:\\gumby\\ruby\\test.rb" * * Our examples here will use the Unix-style forward slashes; * File::SEPARATOR can be used to get the * platform-specific separator character. * * I/O ports may be opened in any one of several different modes, which * are shown in this section as mode_string. This mode string * must be one of the values listed in the following table. * * Mode | Meaning * -----+-------------------------------------------------------- * "r" | Read-only, starts at beginning of file (default mode). * -----+-------------------------------------------------------- * "r+" | Read-write, starts at beginning of file. * -----+-------------------------------------------------------- * "w" | Write-only, truncates existing file * | to zero length or creates a new file for writing. * -----+-------------------------------------------------------- * "w+" | Read-write, truncates existing file to zero length * | or creates a new file for reading and writing. * -----+-------------------------------------------------------- * "a" | Write-only, starts at end of file if file exists, * | otherwise creates a new file for writing. * -----+-------------------------------------------------------- * "a+" | Read-write, starts at end of file if file exists, * | otherwise creates a new file for reading and * | writing. * -----+-------------------------------------------------------- * "b" | (DOS/Windows only) Binary file mode (may appear with * | any of the key letters listed above). * */ void Init_IO() { #ifdef __CYGWIN__ #include static struct __cygwin_perfile pf[] = { {"", O_RDONLY | O_BINARY}, {"", O_WRONLY | O_BINARY}, {"", O_RDWR | O_BINARY}, {"", O_APPEND | O_BINARY}, {NULL, 0} }; cygwin_internal(CW_PERFILE, pf); #endif rb_eIOError = rb_define_class("IOError", rb_eStandardError); rb_eEOFError = rb_define_class("EOFError", rb_eIOError); id_write = rb_intern("write"); id_read = rb_intern("read"); id_getc = rb_intern("getc"); rb_define_global_function("syscall", rb_f_syscall, -1); rb_define_global_function("open", rb_f_open, -1); rb_define_global_function("printf", rb_f_printf, -1); rb_define_global_function("print", rb_f_print, -1); rb_define_global_function("putc", rb_f_putc, 1); rb_define_global_function("puts", rb_f_puts, -1); rb_define_global_function("gets", rb_f_gets, -1); rb_define_global_function("readline", rb_f_readline, -1); rb_define_global_function("getc", rb_f_getc, 0); rb_define_global_function("select", rb_f_select, -1); rb_define_global_function("readlines", rb_f_readlines, -1); rb_define_global_function("`", rb_f_backquote, 1); rb_define_global_function("p", rb_f_p, -1); rb_define_method(rb_mKernel, "display", rb_obj_display, -1); rb_cIO = rb_define_class("IO", rb_cObject); rb_include_module(rb_cIO, rb_mEnumerable); rb_define_alloc_func(rb_cIO, io_alloc); rb_define_singleton_method(rb_cIO, "new", rb_io_s_new, -1); rb_define_singleton_method(rb_cIO, "open", rb_io_s_open, -1); rb_define_singleton_method(rb_cIO, "sysopen", rb_io_s_sysopen, -1); rb_define_singleton_method(rb_cIO, "for_fd", rb_io_s_for_fd, -1); rb_define_singleton_method(rb_cIO, "popen", rb_io_s_popen, -1); rb_define_singleton_method(rb_cIO, "foreach", rb_io_s_foreach, -1); rb_define_singleton_method(rb_cIO, "readlines", rb_io_s_readlines, -1); rb_define_singleton_method(rb_cIO, "read", rb_io_s_read, -1); rb_define_singleton_method(rb_cIO, "select", rb_f_select, -1); rb_define_singleton_method(rb_cIO, "pipe", rb_io_s_pipe, 0); rb_define_method(rb_cIO, "initialize", rb_io_initialize, -1); rb_output_fs = Qnil; rb_define_hooked_variable("$,", &rb_output_fs, 0, rb_str_setter); rb_rs = rb_default_rs = rb_str_new2("\n"); rb_output_rs = Qnil; rb_global_variable(&rb_default_rs); OBJ_FREEZE(rb_default_rs); /* avoid modifying RS_default */ rb_define_hooked_variable("$/", &rb_rs, 0, rb_str_setter); rb_define_hooked_variable("$-0", &rb_rs, 0, rb_str_setter); rb_define_hooked_variable("$\\", &rb_output_rs, 0, rb_str_setter); rb_define_hooked_variable("$.", &lineno, 0, lineno_setter); rb_define_virtual_variable("$_", rb_lastline_get, rb_lastline_set); rb_define_method(rb_cIO, "initialize_copy", rb_io_init_copy, 1); rb_define_method(rb_cIO, "reopen", rb_io_reopen, -1); rb_define_method(rb_cIO, "print", rb_io_print, -1); rb_define_method(rb_cIO, "putc", rb_io_putc, 1); rb_define_method(rb_cIO, "puts", rb_io_puts, -1); rb_define_method(rb_cIO, "printf", rb_io_printf, -1); rb_define_method(rb_cIO, "each", rb_io_each_line, -1); rb_define_method(rb_cIO, "each_line", rb_io_each_line, -1); rb_define_method(rb_cIO, "each_byte", rb_io_each_byte, 0); rb_define_method(rb_cIO, "syswrite", rb_io_syswrite, 1); rb_define_method(rb_cIO, "sysread", rb_io_sysread, -1); rb_define_method(rb_cIO, "fileno", rb_io_fileno, 0); rb_define_alias(rb_cIO, "to_i", "fileno"); rb_define_method(rb_cIO, "to_io", rb_io_to_io, 0); rb_define_method(rb_cIO, "fsync", rb_io_fsync, 0); rb_define_method(rb_cIO, "sync", rb_io_sync, 0); rb_define_method(rb_cIO, "sync=", rb_io_set_sync, 1); rb_define_method(rb_cIO, "lineno", rb_io_lineno, 0); rb_define_method(rb_cIO, "lineno=", rb_io_set_lineno, 1); rb_define_method(rb_cIO, "readlines", rb_io_readlines, -1); rb_define_method(rb_cIO, "read", io_read, -1); rb_define_method(rb_cIO, "write", io_write, 1); rb_define_method(rb_cIO, "gets", rb_io_gets_m, -1); rb_define_method(rb_cIO, "readline", rb_io_readline, -1); rb_define_method(rb_cIO, "getc", rb_io_getc, 0); rb_define_method(rb_cIO, "readchar", rb_io_readchar, 0); rb_define_method(rb_cIO, "ungetc",rb_io_ungetc, 1); rb_define_method(rb_cIO, "<<", rb_io_addstr, 1); rb_define_method(rb_cIO, "flush", rb_io_flush, 0); rb_define_method(rb_cIO, "tell", rb_io_tell, 0); rb_define_method(rb_cIO, "seek", rb_io_seek_m, -1); rb_define_const(rb_cIO, "SEEK_SET", INT2FIX(SEEK_SET)); rb_define_const(rb_cIO, "SEEK_CUR", INT2FIX(SEEK_CUR)); rb_define_const(rb_cIO, "SEEK_END", INT2FIX(SEEK_END)); rb_define_method(rb_cIO, "rewind", rb_io_rewind, 0); rb_define_method(rb_cIO, "pos", rb_io_tell, 0); rb_define_method(rb_cIO, "pos=", rb_io_set_pos, 1); rb_define_method(rb_cIO, "eof", rb_io_eof, 0); rb_define_method(rb_cIO, "eof?", rb_io_eof, 0); rb_define_method(rb_cIO, "close", rb_io_close_m, 0); rb_define_method(rb_cIO, "closed?", rb_io_closed, 0); rb_define_method(rb_cIO, "close_read", rb_io_close_read, 0); rb_define_method(rb_cIO, "close_write", rb_io_close_write, 0); rb_define_method(rb_cIO, "isatty", rb_io_isatty, 0); rb_define_method(rb_cIO, "tty?", rb_io_isatty, 0); rb_define_method(rb_cIO, "binmode", rb_io_binmode, 0); rb_define_method(rb_cIO, "sysseek", rb_io_sysseek, -1); rb_define_method(rb_cIO, "ioctl", rb_io_ioctl, -1); rb_define_method(rb_cIO, "fcntl", rb_io_fcntl, -1); rb_define_method(rb_cIO, "pid", rb_io_pid, 0); rb_define_method(rb_cIO, "inspect", rb_io_inspect, 0); rb_stdin = prep_stdio(stdin, FMODE_READABLE, rb_cIO); rb_define_variable("$stdin", &rb_stdin); rb_stdout = prep_stdio(stdout, FMODE_WRITABLE, rb_cIO); rb_define_hooked_variable("$stdout", &rb_stdout, 0, stdout_setter); rb_stderr = prep_stdio(stderr, FMODE_WRITABLE, rb_cIO); rb_define_hooked_variable("$stderr", &rb_stderr, 0, stdout_setter); rb_define_hooked_variable("$>", &rb_stdout, 0, stdout_setter); orig_stdout = rb_stdout; rb_deferr = orig_stderr = rb_stderr; /* variables to be removed in 1.8.1 */ rb_define_hooked_variable("$defout", &rb_stdout, 0, defout_setter); rb_define_hooked_variable("$deferr", &rb_stderr, 0, deferr_setter); /* constants to hold original stdin/stdout/stderr */ rb_define_global_const("STDIN", rb_stdin); rb_define_global_const("STDOUT", rb_stdout); rb_define_global_const("STDERR", rb_stderr); argf = rb_obj_alloc(rb_cObject); rb_extend_object(argf, rb_mEnumerable); rb_define_readonly_variable("$<", &argf); rb_define_global_const("ARGF", argf); rb_define_singleton_method(argf, "to_s", argf_to_s, 0); rb_define_singleton_method(argf, "fileno", argf_fileno, 0); rb_define_singleton_method(argf, "to_i", argf_fileno, 0); rb_define_singleton_method(argf, "to_io", argf_to_io, 0); rb_define_singleton_method(argf, "each", argf_each_line, -1); rb_define_singleton_method(argf, "each_line", argf_each_line, -1); rb_define_singleton_method(argf, "each_byte", argf_each_byte, 0); rb_define_singleton_method(argf, "read", argf_read, -1); rb_define_singleton_method(argf, "readlines", rb_f_readlines, -1); rb_define_singleton_method(argf, "to_a", rb_f_readlines, -1); rb_define_singleton_method(argf, "gets", rb_f_gets, -1); rb_define_singleton_method(argf, "readline", rb_f_readline, -1); rb_define_singleton_method(argf, "getc", argf_getc, 0); rb_define_singleton_method(argf, "readchar", argf_readchar, 0); rb_define_singleton_method(argf, "tell", argf_tell, 0); rb_define_singleton_method(argf, "seek", argf_seek_m, -1); rb_define_singleton_method(argf, "rewind", argf_rewind, 0); rb_define_singleton_method(argf, "pos", argf_tell, 0); rb_define_singleton_method(argf, "pos=", argf_set_pos, 1); rb_define_singleton_method(argf, "eof", argf_eof, 0); rb_define_singleton_method(argf, "eof?", argf_eof, 0); rb_define_singleton_method(argf, "binmode", argf_binmode, 0); rb_define_singleton_method(argf, "filename", argf_filename, 0); rb_define_singleton_method(argf, "path", argf_filename, 0); rb_define_singleton_method(argf, "file", argf_file, 0); rb_define_singleton_method(argf, "skip", argf_skip, 0); rb_define_singleton_method(argf, "close", argf_close_m, 0); rb_define_singleton_method(argf, "closed?", argf_closed, 0); rb_define_singleton_method(argf, "lineno", argf_lineno, 0); rb_define_singleton_method(argf, "lineno=", argf_set_lineno, 1); rb_global_variable(¤t_file); filename = rb_str_new2("-"); rb_define_readonly_variable("$FILENAME", &filename); rb_define_virtual_variable("$-i", opt_i_get, opt_i_set); #if defined (_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) atexit(pipe_atexit); #endif Init_File(); rb_define_method(rb_cFile, "initialize", rb_file_initialize, -1); rb_file_const("RDONLY", INT2FIX(O_RDONLY)); rb_file_const("WRONLY", INT2FIX(O_WRONLY)); rb_file_const("RDWR", INT2FIX(O_RDWR)); rb_file_const("APPEND", INT2FIX(O_APPEND)); rb_file_const("CREAT", INT2FIX(O_CREAT)); rb_file_const("EXCL", INT2FIX(O_EXCL)); #if defined(O_NDELAY) || defined(O_NONBLOCK) # ifdef O_NONBLOCK rb_file_const("NONBLOCK", INT2FIX(O_NONBLOCK)); # else rb_file_const("NONBLOCK", INT2FIX(O_NDELAY)); # endif #endif rb_file_const("TRUNC", INT2FIX(O_TRUNC)); #ifdef O_NOCTTY rb_file_const("NOCTTY", INT2FIX(O_NOCTTY)); #endif #ifdef O_BINARY rb_file_const("BINARY", INT2FIX(O_BINARY)); #endif #ifdef O_SYNC rb_file_const("SYNC", INT2FIX(O_SYNC)); #endif }