-/* Copyright (C) 1996 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-\f
-#include "_scm.h"
-#include "genio.h"
-#include "smob.h"
-#include "feature.h"
-
-#include "filesys.h"
-\f
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef LIBC_H_WITH_UNISTD_H
-#include <libc.h>
-#endif
-
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include <pwd.h>
-
-
-#ifdef FD_SET
-
-#define SELECT_TYPE fd_set
-#define SELECT_SET_SIZE FD_SETSIZE
-
-#else /* no FD_SET */
-
-/* Define the macros to access a single-int bitmap of descriptors. */
-#define SELECT_SET_SIZE 32
-#define SELECT_TYPE int
-#define FD_SET(n, p) (*(p) |= (1 << (n)))
-#define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
-#define FD_ISSET(n, p) (*(p) & (1 << (n)))
-#define FD_ZERO(p) (*(p) = 0)
-
-#endif /* no FD_SET */
-
-#if HAVE_DIRENT_H
-# include <dirent.h>
-# define NAMLEN(dirent) strlen((dirent)->d_name)
-#else
-# define dirent direct
-# define NAMLEN(dirent) (dirent)->d_namlen
-# if HAVE_SYS_NDIR_H
-# include <sys/ndir.h>
-# endif
-# if HAVE_SYS_DIR_H
-# include <sys/dir.h>
-# endif
-# if HAVE_NDIR_H
-# include <ndir.h>
-# endif
-#endif
-
-\f
-
-#ifdef O_CREAT
-SCM_CONST_LONG (scm_O_CREAT, "O_CREAT", O_CREAT);
-#endif
-
-#ifdef O_EXCL
-SCM_CONST_LONG (scm_O_EXCL, "O_EXCL", O_EXCL);
-#endif
-
-#ifdef O_NOCTTY
-SCM_CONST_LONG (scm_O_NOCTTY, "O_NOCTTY", O_NOCTTY);
-#endif
-
-#ifdef O_TRUNC
-SCM_CONST_LONG (scm_O_TRUNC, "O_TRUNC", O_TRUNC);
-#endif
-
-#ifdef O_APPEND
-SCM_CONST_LONG (scm_O_APPEND, "O_APPEND", O_APPEND);
-#endif
-
-#ifdef O_NONBLOCK
-SCM_CONST_LONG (scm_O_NONBLOCK, "O_NONBLOCK", O_NONBLOCK);
-#endif
-
-#ifdef O_NDELAY
-SCM_CONST_LONG (scm_O_NDELAY, "O_NDELAY", O_NDELAY);
-#endif
-
-#ifdef O_SYNC
-SCM_CONST_LONG (scm_O_SYNC, "O_SYNC", O_SYNC);
-#endif
-
-
-
-\f
-
-/* {Permissions}
- */
-
-SCM_PROC (s_sys_chown, "chown", 3, 0, 0, scm_sys_chown);
-
-SCM
-scm_sys_chown (path, owner, group)
- SCM path;
- SCM owner;
- SCM group;
-{
- int val;
-
- SCM_ASSERT (SCM_NIMP (path) && SCM_ROSTRINGP (path), path, SCM_ARG1, s_sys_chown);
- if (SCM_SUBSTRP (path))
- path = scm_makfromstr (SCM_ROCHARS (path), SCM_ROLENGTH (path), 0);
- SCM_ASSERT (SCM_INUMP (owner), owner, SCM_ARG2, s_sys_chown);
- SCM_ASSERT (SCM_INUMP (group), group, SCM_ARG3, s_sys_chown);
- SCM_SYSCALL (val = chown (SCM_ROCHARS (path),
- SCM_INUM (owner), SCM_INUM (group)));
- if (val != 0)
- scm_syserror (s_sys_chown);
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC (s_sys_chmod, "chmod", 2, 0, 0, scm_sys_chmod);
-
-SCM
-scm_sys_chmod (port_or_path, mode)
- SCM port_or_path;
- SCM mode;
-{
- int rv;
- SCM_ASSERT (SCM_INUMP (mode), mode, SCM_ARG2, s_sys_chmod);
- SCM_ASSERT (SCM_NIMP (port_or_path), port_or_path, SCM_ARG1, s_sys_chmod);
- if (SCM_STRINGP (port_or_path))
- SCM_SYSCALL (rv = chmod (SCM_CHARS (port_or_path), SCM_INUM (mode)));
- else
- {
- SCM_ASSERT (SCM_OPFPORTP (port_or_path), port_or_path, SCM_ARG1, s_sys_chmod);
- rv = fileno ((FILE *)SCM_STREAM (port_or_path));
- if (rv != -1)
- SCM_SYSCALL (rv = fchmod (rv, SCM_INUM (mode)));
- }
- if (rv != 0)
- scm_syserror (s_sys_chmod);
- return SCM_UNSPECIFIED;
-}
-
-SCM_PROC (s_umask, "umask", 0, 1, 0, scm_umask);
-
-SCM
-scm_umask (mode)
- SCM mode;
-{
- mode_t mask;
- if (SCM_UNBNDP (mode))
- {
- mask = umask (0);
- umask (mask);
- }
- else
- {
- SCM_ASSERT (SCM_INUMP (mode), mode, SCM_ARG1, s_umask);
- mask = umask (SCM_INUM (mode));
- }
- return SCM_MAKINUM (mask);
-}
-
-\f
-/* {File Descriptors}
- */
-long scm_tc16_fd;
-
-
-static int scm_fd_print SCM_P ((SCM sexp, SCM port, scm_print_state *pstate));
-
-static int
-scm_fd_print (sexp, port, pstate)
- SCM sexp;
- SCM port;
- scm_print_state *pstate;
-{
- scm_gen_puts (scm_regular_string, "#<fd ", port);
- scm_intprint (SCM_CDR (sexp), 10, port);
- scm_gen_puts (scm_regular_string, ">", port);
- return 1;
-}
-
-
-static scm_sizet scm_fd_free SCM_P ((SCM p));
-
-static scm_sizet
-scm_fd_free (p)
- SCM p;
-{
- SCM flags;
-
- flags = SCM_FD_FLAGS (p);
- if ((scm_close_fd_on_gc & flags) && (scm_fd_is_open & flags))
- {
- SCM_SYSCALL( close (SCM_FD (p)) );
- }
- return 0;
-}
-
-static scm_smobfuns fd_smob = {scm_mark0, scm_fd_free, scm_fd_print, 0};
-
-
-SCM
-scm_intern_fd (fd, flags)
- int fd;
- int flags;
-{
- SCM it;
- SCM_NEWCELL (it);
- SCM_REDEFER_INTS;
- SCM_SETCAR (it, (scm_tc16_fd | (flags << 16)));
- SCM_SETCDR (it, (SCM)fd);
- SCM_REALLOW_INTS;
- return it;
-}
-
-\f
-
-SCM_PROC (s_sys_open, "open", 3, 0, 0, scm_sys_open);
-
-SCM
-scm_sys_open (path, flags, mode)
- SCM path;
- SCM flags;
- SCM mode;
-{
- int fd;
- SCM sfd;
-
- SCM_ASSERT (SCM_NIMP (path) && SCM_ROSTRINGP (path), path, SCM_ARG1, s_sys_open);
- SCM_ASSERT (SCM_INUMP (flags), flags, SCM_ARG2, s_sys_open);
- SCM_ASSERT (SCM_INUMP (mode), mode, SCM_ARG3, s_sys_open);
-
- if (SCM_SUBSTRP (path))
- path = scm_makfromstr (SCM_ROCHARS (path), SCM_ROLENGTH (path), 0);
-
- SCM_DEFER_INTS;
- SCM_SYSCALL ( fd = open (SCM_ROCHARS (path), SCM_INUM (flags), SCM_INUM (mode)) );
- if (fd == -1)
- scm_syserror (s_sys_open);
- sfd = scm_intern_fd (fd, scm_fd_is_open | scm_close_fd_on_gc);
- SCM_ALLOW_INTS;
-
- return scm_return_first (sfd, path);
-}
-
-
-SCM_PROC (s_sys_create, "create", 2, 0, 0, scm_sys_create);
-
-SCM
-scm_sys_create (path, mode)
- SCM path;
- SCM mode;
-{
- int fd;
- SCM sfd;
-
- SCM_ASSERT (SCM_NIMP (path) && SCM_ROSTRINGP (path), path, SCM_ARG1, s_sys_create);
- SCM_ASSERT (SCM_INUMP (mode), mode, SCM_ARG2, s_sys_create);
-
- if (SCM_SUBSTRP (path))
- path = scm_makfromstr (SCM_ROCHARS (path), SCM_ROLENGTH (path), 0);
-
- SCM_DEFER_INTS;
- SCM_SYSCALL ( fd = creat (SCM_ROCHARS (path), SCM_INUM (mode)) );
- if (fd == -1)
- scm_syserror (s_sys_create);
- sfd = scm_intern_fd (fd, scm_fd_is_open | scm_close_fd_on_gc);
- SCM_ALLOW_INTS;
-
- return scm_return_first (sfd, path);
-}
-
-
-SCM_PROC (s_sys_close, "close", 1, 0, 0, scm_sys_close);
-
-SCM
-scm_sys_close (sfd)
- SCM sfd;
-{
- int fd;
- int got;
- SCM_ASSERT (SCM_NIMP (sfd) && SCM_FD_P (sfd), sfd, SCM_ARG1, s_sys_close);
- fd = SCM_FD (sfd);
-
- SCM_DEFER_INTS;
- got = close (fd);
- SCM_SETCAR (sfd, scm_tc16_fd);
- SCM_ALLOW_INTS;
- if (got == -1)
- scm_syserror (s_sys_close);
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC (s_sys_write_fd, "write-fd", 2, 0, 0, scm_sys_write_fd);
-
-SCM
-scm_sys_write_fd (sfd, buf)
- SCM sfd;
- SCM buf;
-{
- SCM answer;
- int fd;
- size_t written;
- SCM_ASSERT (SCM_NIMP (sfd) && SCM_FD_P (sfd), sfd, SCM_ARG1, s_sys_write_fd);
- SCM_ASSERT (SCM_NIMP (buf) && SCM_ROSTRINGP (buf), buf, SCM_ARG2, s_sys_write_fd);
- fd = SCM_FD (sfd);
- SCM_DEFER_INTS;
- written = write (fd, SCM_ROCHARS (buf), SCM_ROLENGTH (buf));
- if (written == -1)
- scm_syserror (s_sys_write_fd);
- answer = scm_long2num (written);
- SCM_ALLOW_INTS;
- return scm_return_first (answer, buf);
-}
-
-
-SCM_PROC (s_sys_read_fd, "read-fd", 2, 2, 0, scm_sys_read_fd);
-
-SCM
-scm_sys_read_fd (sfd, buf, offset, length)
- SCM sfd;
- SCM buf;
- SCM offset;
- SCM length;
-{
- SCM answer;
- int fd;
- char * bytes;
- int off;
- int len;
- size_t got;
-
- SCM_ASSERT (SCM_NIMP (sfd) && SCM_FD_P (sfd), sfd, SCM_ARG1, s_sys_read_fd);
- fd = SCM_FD (sfd);
-
- SCM_ASSERT (SCM_NIMP (buf) && SCM_STRINGP (buf), buf, SCM_ARG2, s_sys_read_fd);
- bytes = SCM_CHARS (buf);
-
- if (SCM_UNBNDP (offset))
- off = 0;
- else
- {
- SCM_ASSERT (SCM_INUMP (offset), offset, SCM_ARG3, s_sys_read_fd);
- off = SCM_INUM (offset);
- }
-
- if (SCM_UNBNDP (length))
- len = SCM_LENGTH (buf);
- else
- {
- SCM_ASSERT (SCM_INUMP (length), length, SCM_ARG3, s_sys_read_fd);
- len = SCM_INUM (length);
- }
-
- SCM_DEFER_INTS;
- got = read (fd, bytes + off, len);
- if (got == -1)
- scm_syserror (s_sys_read_fd);
- answer = scm_long2num (got);
- SCM_ALLOW_INTS;
- return scm_return_first (answer, buf);
-}
-
-SCM_PROC (s_sys_lseek, "lseek", 2, 1, 0, scm_sys_lseek);
-
-SCM
-scm_sys_lseek (sfd, offset, whence)
- SCM sfd;
- SCM offset;
- SCM whence;
-{
- SCM answer;
- int fd;
- long off;
- int wh;
- long got;
-
- SCM_ASSERT (SCM_NIMP (sfd) && SCM_FD_P (sfd), sfd, SCM_ARG1, s_sys_lseek);
- fd = SCM_FD (sfd);
-
- off = scm_num2long (offset, (char *)SCM_ARG2, s_sys_lseek);
- if (SCM_UNBNDP (whence))
- wh = SEEK_SET;
- else
- {
- SCM_ASSERT (SCM_INUMP (whence), whence, SCM_ARG3, s_sys_lseek);
- wh = SCM_INUM (whence);
- }
-
- SCM_DEFER_INTS;
- SCM_SYSCALL (got = lseek (fd, off, wh));
- if (got == -1)
- scm_syserror (s_sys_lseek);
- answer = scm_long2num (got);
- SCM_ALLOW_INTS;
- return answer;
-}
-
-
-SCM_PROC (s_sys_dup, "dup", 1, 1, 0, scm_sys_dup);
-
-SCM
-scm_sys_dup (oldfd, newfd)
- SCM oldfd;
- SCM newfd;
-{
- SCM answer;
- int fd;
- int nfd;
- int (*fn)();
-
- SCM_ASSERT (SCM_NIMP (oldfd) && SCM_FD_P (oldfd), oldfd, SCM_ARG1, s_sys_dup);
- SCM_ASSERT (SCM_UNBNDP (newfd) || SCM_INUMP (newfd), newfd, SCM_ARG2, s_sys_dup);
- fd = SCM_FD (oldfd);
- nfd = (SCM_INUMP (newfd) ? SCM_INUM (newfd) : -1);
-
- SCM_DEFER_INTS;
- fn = ((nfd == -1) ? (int (*)())dup : (int (*)())dup2);
- nfd = fn (fd, nfd);
- if (nfd == -1)
- scm_syserror (s_sys_dup);
- answer = SCM_MAKINUM (nfd);
- SCM_ALLOW_INTS;
- return answer;
-}
-
-
-\f
-/* {Files}
- */
-
-SCM_SYMBOL (scm_sym_regular, "regular");
-SCM_SYMBOL (scm_sym_directory, "directory");
-SCM_SYMBOL (scm_sym_symlink, "symlink");
-SCM_SYMBOL (scm_sym_block_special, "block-special");
-SCM_SYMBOL (scm_sym_char_special, "char-special");
-SCM_SYMBOL (scm_sym_fifo, "fifo");
-SCM_SYMBOL (scm_sym_sock, "socket");
-SCM_SYMBOL (scm_sym_unknown, "unknown");
-
-static SCM scm_stat2scm SCM_P ((struct stat *stat_temp));
-
-static SCM
-scm_stat2scm (stat_temp)
- struct stat *stat_temp;
-{
- SCM ans = scm_make_vector (SCM_MAKINUM (15), SCM_UNSPECIFIED, SCM_BOOL_F);
- SCM *ve = SCM_VELTS (ans);
-
- ve[0] = scm_ulong2num ((unsigned long) stat_temp->st_dev);
- ve[1] = scm_ulong2num ((unsigned long) stat_temp->st_ino);
- ve[2] = scm_ulong2num ((unsigned long) stat_temp->st_mode);
- ve[3] = scm_ulong2num ((unsigned long) stat_temp->st_nlink);
- ve[4] = scm_ulong2num ((unsigned long) stat_temp->st_uid);
- ve[5] = scm_ulong2num ((unsigned long) stat_temp->st_gid);
-#ifdef HAVE_ST_RDEV
- ve[6] = scm_ulong2num ((unsigned long) stat_temp->st_rdev);
-#else
- ve[6] = SCM_BOOL_F;
-#endif
- ve[7] = scm_ulong2num ((unsigned long) stat_temp->st_size);
- ve[8] = scm_ulong2num ((unsigned long) stat_temp->st_atime);
- ve[9] = scm_ulong2num ((unsigned long) stat_temp->st_mtime);
- ve[10] = scm_ulong2num ((unsigned long) stat_temp->st_ctime);
-#ifdef HAVE_ST_BLKSIZE
- ve[11] = scm_ulong2num ((unsigned long) stat_temp->st_blksize);
-#else
- ve[11] = scm_ulong2num (4096L);
-#endif
-#ifdef HAVE_ST_BLOCKS
- ve[12] = scm_ulong2num ((unsigned long) stat_temp->st_blocks);
-#else
- ve[12] = SCM_BOOL_F;
-#endif
- {
- int mode = stat_temp->st_mode;
-
- if (S_ISREG (mode))
- ve[13] = scm_sym_regular;
- else if (S_ISDIR (mode))
- ve[13] = scm_sym_directory;
- else if (S_ISLNK (mode))
- ve[13] = scm_sym_symlink;
- else if (S_ISBLK (mode))
- ve[13] = scm_sym_block_special;
- else if (S_ISCHR (mode))
- ve[13] = scm_sym_char_special;
- else if (S_ISFIFO (mode))
- ve[13] = scm_sym_fifo;
- else if (S_ISSOCK (mode))
- ve[13] = scm_sym_sock;
- else
- ve[13] = scm_sym_unknown;
-
- ve[14] = SCM_MAKINUM ((~S_IFMT) & mode);
-
- /* the layout of the bits in ve[14] is intended to be portable.
- If there are systems that don't follow the usual convention,
- the following could be used:
-
- tmp = 0;
- if (S_ISUID & mode) tmp += 1;
- tmp <<= 1;
- if (S_IRGRP & mode) tmp += 1;
- tmp <<= 1;
- if (S_ISVTX & mode) tmp += 1;
- tmp <<= 1;
- if (S_IRUSR & mode) tmp += 1;
- tmp <<= 1;
- if (S_IWUSR & mode) tmp += 1;
- tmp <<= 1;
- if (S_IXUSR & mode) tmp += 1;
- tmp <<= 1;
- if (S_IWGRP & mode) tmp += 1;
- tmp <<= 1;
- if (S_IXGRP & mode) tmp += 1;
- tmp <<= 1;
- if (S_IROTH & mode) tmp += 1;
- tmp <<= 1;
- if (S_IWOTH & mode) tmp += 1;
- tmp <<= 1;
- if (S_IXOTH & mode) tmp += 1;
-
- ve[14] = SCM_MAKINUM (tmp);
-
- */
- }
-
- return ans;
-}
-
-SCM_PROC (s_sys_stat, "stat", 1, 0, 0, scm_sys_stat);
-
-SCM
-scm_sys_stat (fd_or_path)
- SCM fd_or_path;
-{
- int rv = 1;
- struct stat stat_temp;
-
- if (SCM_INUMP (fd_or_path))
- {
- rv = SCM_INUM (fd_or_path);
- SCM_SYSCALL (rv = fstat (rv, &stat_temp));
- }
- else if (SCM_NIMP (fd_or_path) && SCM_FD_P (fd_or_path))
- {
- rv = SCM_FD (fd_or_path);
- SCM_SYSCALL (rv = fstat (rv, &stat_temp));
- }
- else
- {
- SCM_ASSERT (SCM_NIMP (fd_or_path), fd_or_path, SCM_ARG1, s_sys_stat);
- SCM_ASSERT (SCM_ROSTRINGP (fd_or_path), fd_or_path, SCM_ARG1, s_sys_stat);
- if (SCM_ROSTRINGP (fd_or_path))
- {
- if (SCM_SUBSTRP (fd_or_path))
- fd_or_path = scm_makfromstr (SCM_ROCHARS (fd_or_path), SCM_ROLENGTH (fd_or_path), 0);
- SCM_SYSCALL (rv = stat (SCM_CHARS (fd_or_path), &stat_temp));
- }
-
- }
- if (rv != 0)
- scm_syserror_msg (s_sys_stat, "%s: %S",
- scm_listify (scm_makfrom0str (strerror (errno)),
- fd_or_path,
- SCM_UNDEFINED));
- return scm_stat2scm (&stat_temp);
-}
-
-
-\f
-/* {Modifying Directories}
- */
-
-SCM_PROC (s_sys_link, "link", 2, 0, 0, scm_sys_link);
-
-SCM
-scm_sys_link (oldpath, newpath)
- SCM oldpath;
- SCM newpath;
-{
- int val;
-
- SCM_ASSERT (SCM_NIMP (oldpath) && SCM_ROSTRINGP (oldpath), oldpath, SCM_ARG1, s_sys_link);
- if (SCM_SUBSTRP (oldpath))
- oldpath = scm_makfromstr (SCM_ROCHARS (oldpath), SCM_ROLENGTH (oldpath), 0);
- SCM_ASSERT (SCM_NIMP (newpath) && SCM_ROSTRINGP (newpath), newpath, SCM_ARG2, s_sys_link);
- if (SCM_SUBSTRP (newpath))
- newpath = scm_makfromstr (SCM_ROCHARS (newpath), SCM_ROLENGTH (newpath), 0);
- SCM_SYSCALL (val = link (SCM_ROCHARS (oldpath), SCM_ROCHARS (newpath)));
- if (val != 0)
- scm_syserror (s_sys_link);
- return SCM_UNSPECIFIED;
-}
-
-
-
-SCM_PROC (s_sys_rename, "rename-file", 2, 0, 0, scm_sys_rename);
-
-SCM
-scm_sys_rename (oldname, newname)
- SCM oldname;
- SCM newname;
-{
- int rv;
- SCM_ASSERT (SCM_NIMP (oldname) && SCM_STRINGP (oldname), oldname, SCM_ARG1, s_sys_rename);
- SCM_ASSERT (SCM_NIMP (newname) && SCM_STRINGP (newname), newname, SCM_ARG2, s_sys_rename);
-#ifdef HAVE_RENAME
- SCM_SYSCALL (rv = rename (SCM_CHARS (oldname), SCM_CHARS (newname)));
- if (rv != 0)
- scm_syserror (s_sys_rename);
- return SCM_UNSPECIFIED;
-#else
- SCM_DEFER_INTS;
- SCM_SYSCALL (rv = link (SCM_CHARS (oldname), SCM_CHARS (newname)));
- if (rv == 0)
- {
- SCM_SYSCALL (rv = unlink (SCM_CHARS (oldname)));;
- if (rv != 0)
- /* unlink failed. remove new name */
- SCM_SYSCALL (unlink (SCM_CHARS (newname)));
- }
- SCM_ALLOW_INTS;
- if (rv != 0)
- scm_syserror (s_sys_rename);
- return SCM_UNSPECIFIED;
-#endif
-}
-
-
-SCM_PROC(s_sys_delete_file, "delete-file", 1, 0, 0, scm_sys_delete_file);
-
-SCM
-scm_sys_delete_file (str)
- SCM str;
-{
- int ans;
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_sys_delete_file);
- SCM_SYSCALL (ans = unlink (SCM_CHARS (str)));
- if (ans != 0)
- scm_syserror (s_sys_delete_file);
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC (s_sys_mkdir, "mkdir", 1, 1, 0, scm_sys_mkdir);
-
-SCM
-scm_sys_mkdir (path, mode)
- SCM path;
- SCM mode;
-{
-#ifdef HAVE_MKDIR
- int rv;
- mode_t mask;
- SCM_ASSERT (SCM_NIMP (path) && SCM_STRINGP (path), path, SCM_ARG1, s_sys_mkdir);
- if (SCM_UNBNDP (mode))
- {
- mask = umask (0);
- umask (mask);
- SCM_SYSCALL (rv = mkdir (SCM_CHARS (path), 0777 ^ mask));
- }
- else
- {
- SCM_ASSERT (SCM_INUMP (mode), mode, SCM_ARG2, s_sys_mkdir);
- SCM_SYSCALL (rv = mkdir (SCM_CHARS (path), SCM_INUM (mode)));
- }
- if (rv != 0)
- scm_syserror (s_sys_mkdir);
- return SCM_UNSPECIFIED;
-#else
- scm_sysmissing (s_sys_mkdir);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-
-SCM_PROC (s_sys_rmdir, "rmdir", 1, 0, 0, scm_sys_rmdir);
-
-SCM
-scm_sys_rmdir (path)
- SCM path;
-{
-#ifdef HAVE_RMDIR
- int val;
-
- SCM_ASSERT (SCM_NIMP (path) && SCM_STRINGP (path), path, SCM_ARG1, s_sys_rmdir);
- SCM_SYSCALL (val = rmdir (SCM_CHARS (path)));
- if (val != 0)
- scm_syserror (s_sys_rmdir);
- return SCM_UNSPECIFIED;
-#else
- scm_sysmissing (s_sys_rmdir);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-\f
-/* {Examining Directories}
- */
-
-long scm_tc16_dir;
-
-SCM_PROC (s_sys_opendir, "opendir", 1, 0, 0, scm_sys_opendir);
-
-SCM
-scm_sys_opendir (dirname)
- SCM dirname;
-{
- DIR *ds;
- SCM dir;
- SCM_ASSERT (SCM_NIMP (dirname) && SCM_STRINGP (dirname), dirname, SCM_ARG1, s_sys_opendir);
- SCM_NEWCELL (dir);
- SCM_DEFER_INTS;
- SCM_SYSCALL (ds = opendir (SCM_CHARS (dirname)));
- if (ds == NULL)
- scm_syserror (s_sys_opendir);
- SCM_SETCAR (dir, scm_tc16_dir | SCM_OPN);
- SCM_SETCDR (dir, ds);
- SCM_ALLOW_INTS;
- return dir;
-}
-
-
-SCM_PROC (s_sys_readdir, "readdir", 1, 0, 0, scm_sys_readdir);
-
-SCM
-scm_sys_readdir (port)
- SCM port;
-{
- struct dirent *rdent;
- SCM_DEFER_INTS;
- SCM_ASSERT (SCM_NIMP (port) && SCM_OPDIRP (port), port, SCM_ARG1, s_sys_readdir);
- errno = 0;
- SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CDR (port)));
- SCM_ALLOW_INTS;
- if (errno != 0)
- scm_syserror (s_sys_readdir);
- return (rdent ? scm_makfromstr (rdent->d_name, NAMLEN (rdent), 0)
- : SCM_EOF_VAL);
-}
-
-
-
-SCM_PROC (s_rewinddir, "rewinddir", 1, 0, 0, scm_rewinddir);
-
-SCM
-scm_rewinddir (port)
- SCM port;
-{
- SCM_ASSERT (SCM_NIMP (port) && SCM_OPDIRP (port), port, SCM_ARG1, s_rewinddir);
- rewinddir ((DIR *) SCM_CDR (port));
- return SCM_UNSPECIFIED;
-}
-
-
-
-SCM_PROC (s_sys_closedir, "closedir", 1, 0, 0, scm_sys_closedir);
-
-SCM
-scm_sys_closedir (port)
- SCM port;
-{
- int sts;
-
- SCM_ASSERT (SCM_NIMP (port) && SCM_DIRP (port), port, SCM_ARG1, s_sys_closedir);
- SCM_DEFER_INTS;
- if (SCM_CLOSEDP (port))
- {
- SCM_ALLOW_INTS;
- return SCM_UNSPECIFIED;
- }
- SCM_SYSCALL (sts = closedir ((DIR *) SCM_CDR (port)));
- if (sts != 0)
- scm_syserror (s_sys_closedir);
- SCM_SETCAR (port, scm_tc16_dir);
- SCM_ALLOW_INTS;
- return SCM_UNSPECIFIED;
-}
-
-
-
-
-static int scm_dir_print SCM_P ((SCM sexp, SCM port, scm_print_state *pstate));
-
-static int
-scm_dir_print (sexp, port, pstate)
- SCM sexp;
- SCM port;
- scm_print_state *pstate;
-{
- scm_prinport (sexp, port, "directory");
- return 1;
-}
-
-
-static scm_sizet scm_dir_free SCM_P ((SCM p));
-
-static scm_sizet
-scm_dir_free (p)
- SCM p;
-{
- if (SCM_OPENP (p))
- closedir ((DIR *) SCM_CDR (p));
- return 0;
-}
-
-static scm_smobfuns dir_smob = {scm_mark0, scm_dir_free, scm_dir_print, 0};
-
-\f
-/* {Navigating Directories}
- */
-
-
-SCM_PROC (s_sys_chdir, "chdir", 1, 0, 0, scm_sys_chdir);
-
-SCM
-scm_sys_chdir (str)
- SCM str;
-{
- int ans;
-
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_sys_chdir);
- SCM_SYSCALL (ans = chdir (SCM_CHARS (str)));
- if (ans != 0)
- scm_syserror (s_sys_chdir);
- return SCM_UNSPECIFIED;
-}
-
-
-
-SCM_PROC (s_sys_getcwd, "getcwd", 0, 0, 0, scm_sys_getcwd);
-
-SCM
-scm_sys_getcwd ()
-{
-#ifdef HAVE_GETCWD
- char *rv;
-
- scm_sizet size = 100;
- char *wd;
- SCM result;
-
- SCM_DEFER_INTS;
- wd = scm_must_malloc (size, s_sys_getcwd);
- while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE)
- {
- scm_must_free (wd);
- size *= 2;
- wd = scm_must_malloc (size, s_sys_getcwd);
- }
- if (rv == 0)
- scm_syserror (s_sys_getcwd);
- result = scm_makfromstr (wd, strlen (wd), 0);
- scm_must_free (wd);
- SCM_ALLOW_INTS;
- return result;
-#else
- scm_sysmissing (s_sys_getcwd);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-\f
-
-
-static void fill_select_type SCM_P ((SELECT_TYPE * set, SCM list));
-
-static void
-fill_select_type (set, list)
- SELECT_TYPE * set;
- SCM list;
-{
- while (list != SCM_EOL)
- {
- if ( SCM_NIMP (SCM_CAR (list))
- && (scm_tc16_fport == SCM_TYP16 (SCM_CAR (list)))
- && SCM_OPPORTP (SCM_CAR (list)))
- FD_SET (fileno ((FILE *)SCM_STREAM (SCM_CAR (list))), set);
- else if (SCM_INUMP (SCM_CAR (list)))
- FD_SET (SCM_INUM (SCM_CAR (list)), set);
- else if (SCM_NIMP (SCM_CAR (list)) && SCM_FD_P (SCM_CAR (list)))
- FD_SET (SCM_FD (SCM_CAR (list)), set);
- list = SCM_CDR (list);
- }
-}
-
-
-static SCM retrieve_select_type SCM_P ((SELECT_TYPE * set, SCM list));
-
-static SCM
-retrieve_select_type (set, list)
- SELECT_TYPE * set;
- SCM list;
-{
- SCM answer;
- answer = SCM_EOL;
- while (list != SCM_EOL)
- {
- if ( SCM_NIMP (SCM_CAR (list))
- && (scm_tc16_fport == SCM_TYP16 (SCM_CAR (list)))
- && SCM_OPPORTP (SCM_CAR (list)))
- {
- if (FD_ISSET (fileno ((FILE *)SCM_STREAM (SCM_CAR (list))), set))
- answer = scm_cons (SCM_CAR (list), answer);
- }
- else if (SCM_INUMP (SCM_CAR (list)))
- {
- if (FD_ISSET (SCM_INUM (SCM_CAR (list)), set))
- answer = scm_cons (SCM_CAR (list), answer);
- }
- else if (SCM_NIMP (SCM_CAR (list)) && SCM_FD_P (SCM_CAR (list)))
- {
- if (FD_ISSET (SCM_FD (SCM_CAR (list)), set))
- answer = scm_cons (SCM_CAR (list), answer);
- }
- list = SCM_CDR (list);
- }
- return answer;
-}
-
-
-/* {Checking for events}
- */
-
-SCM_PROC (s_sys_select, "select", 3, 2, 0, scm_sys_select);
-
-SCM
-scm_sys_select (reads, writes, excepts, secs, msecs)
- SCM reads;
- SCM writes;
- SCM excepts;
- SCM secs;
- SCM msecs;
-{
-#ifdef HAVE_SELECT
- struct timeval timeout;
- struct timeval * time_p;
- SELECT_TYPE read_set;
- SELECT_TYPE write_set;
- SELECT_TYPE except_set;
- int sreturn;
-
- SCM_ASSERT (-1 < scm_ilength (reads), reads, SCM_ARG1, s_sys_select);
- SCM_ASSERT (-1 < scm_ilength (writes), reads, SCM_ARG1, s_sys_select);
- SCM_ASSERT (-1 < scm_ilength (excepts), reads, SCM_ARG1, s_sys_select);
-
- FD_ZERO (&read_set);
- FD_ZERO (&write_set);
- FD_ZERO (&except_set);
-
- fill_select_type (&read_set, reads);
- fill_select_type (&write_set, writes);
- fill_select_type (&except_set, excepts);
-
- if (SCM_UNBNDP (secs))
- time_p = 0;
- else
- {
- SCM_ASSERT (SCM_INUMP (secs), secs, SCM_ARG4, s_sys_select);
- if (SCM_UNBNDP (msecs))
- msecs = SCM_INUM0;
- else
- SCM_ASSERT (SCM_INUMP (msecs), msecs, SCM_ARG5, s_sys_select);
-
- timeout.tv_sec = SCM_INUM (secs);
- timeout.tv_usec = 1000 * SCM_INUM (msecs);
- time_p = &timeout;
- }
-
- SCM_DEFER_INTS;
- sreturn = select (SELECT_SET_SIZE,
- &read_set, &write_set, &except_set, time_p);
- if (sreturn < 0)
- scm_syserror (s_sys_select);
- SCM_ALLOW_INTS;
- return scm_listify (retrieve_select_type (&read_set, reads),
- retrieve_select_type (&write_set, writes),
- retrieve_select_type (&except_set, excepts),
- SCM_UNDEFINED);
-#else
- scm_sysmissing (s_sys_select);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-/* Check if FILE has characters waiting to be read. */
-
-#ifdef __IBMC__
-# define MSDOS
-#endif
-#ifdef MSDOS
-# ifndef GO32
-# include <io.h>
-# include <conio.h>
-
-int
-scm_input_waiting_p (f, caller)
- FILE *f;
- char *caller;
-{
- if (feof (f))
- return 1;
- if (fileno (f) == fileno (stdin) && (isatty (fileno (stdin))))
- return kbhit ();
- return -1;
-}
-
-# endif
-#else
-# ifdef _DCC
-# include <ioctl.h>
-# else
-# ifndef AMIGA
-# ifndef vms
-# ifdef MWC
-# include <sys/io.h>
-# else
-# ifndef THINK_C
-# ifndef ARM_ULIB
-# include <sys/ioctl.h>
-# endif
-# endif
-# endif
-# endif
-# endif
-# endif
-
-int
-scm_input_waiting_p (f, caller)
- FILE *f;
- char *caller;
-{
- /* Can we return an end-of-file character? */
- if (feof (f))
- return 1;
-
- /* Do we have characters in the stdio buffer? */
-# ifdef FILE_CNT_FIELD
- if (f->FILE_CNT_FIELD > 0)
- return 1;
-# else
-# ifdef FILE_CNT_GPTR
- if (f->_gptr != f->_egptr)
- return 1;
-# else
-# ifdef FILE_CNT_READPTR
- if (f->_IO_read_end != f->_IO_read_ptr)
- return 1;
-# else
- Configure.in could not guess the name of the correct field in a FILE *.
- This function needs to be ported to your system.
- It should return zero iff no characters are waiting to be read.;
-# endif
-# endif
-# endif
-
- /* Is the file prepared to deliver input? */
-# ifdef HAVE_SELECT
- {
- struct timeval timeout;
- SELECT_TYPE read_set;
- SELECT_TYPE write_set;
- SELECT_TYPE except_set;
- int fno = fileno ((FILE *)f);
-
- FD_ZERO (&read_set);
- FD_ZERO (&write_set);
- FD_ZERO (&except_set);
-
- FD_SET (fno, &read_set);
-
- timeout.tv_sec = 0;
- timeout.tv_usec = 0;
-
- SCM_DEFER_INTS;
- if (select (SELECT_SET_SIZE,
- &read_set, &write_set, &except_set, &timeout)
- < 0)
- scm_syserror (caller);
- SCM_ALLOW_INTS;
- return FD_ISSET (fno, &read_set);
- }
-# else
-# ifdef FIONREAD
- {
- long remir;
- ioctl(fileno(f), FIONREAD, &remir);
- return remir;
- }
-# else
- scm_misc_error ("char-ready?", "Not fully implemented\n");
-# endif
-# endif
-}
-#endif
-
-\f
-/* {Symbolic Links}
- */
-
-SCM_PROC (s_sys_symlink, "symlink", 2, 0, 0, scm_sys_symlink);
-
-SCM
-scm_sys_symlink(oldpath, newpath)
- SCM oldpath;
- SCM newpath;
-{
-#ifdef HAVE_SYMLINK
- int val;
-
- SCM_ASSERT(SCM_NIMP(oldpath) && SCM_STRINGP(oldpath), oldpath, SCM_ARG1, s_sys_symlink);
- SCM_ASSERT(SCM_NIMP(newpath) && SCM_STRINGP(newpath), newpath, SCM_ARG2, s_sys_symlink);
- SCM_SYSCALL (val = symlink(SCM_CHARS(oldpath), SCM_CHARS(newpath)));
- if (val != 0)
- scm_syserror (s_sys_symlink);
- return SCM_UNSPECIFIED;
-#else
- scm_sysmissing (s_sys_symlink);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-
-SCM_PROC (s_sys_readlink, "readlink", 1, 0, 0, scm_sys_readlink);
-
-SCM
-scm_sys_readlink(path)
- SCM path;
-{
-#ifdef HAVE_READLINK
- scm_sizet rv;
- scm_sizet size = 100;
- char *buf;
- SCM result;
- SCM_ASSERT (SCM_NIMP (path) && SCM_STRINGP (path), path, (char *) SCM_ARG1, s_sys_readlink);
- SCM_DEFER_INTS;
- buf = scm_must_malloc (size, s_sys_readlink);
- while ((rv = readlink (SCM_CHARS (path), buf, (scm_sizet) size)) == size)
- {
- scm_must_free (buf);
- size *= 2;
- buf = scm_must_malloc (size, s_sys_readlink);
- }
- if (rv == -1)
- scm_syserror (s_sys_readlink);
- result = scm_makfromstr (buf, rv, 0);
- scm_must_free (buf);
- SCM_ALLOW_INTS;
- return result;
-#else
- scm_sysmissing (s_sys_readlink);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-
-SCM_PROC (s_sys_lstat, "lstat", 1, 0, 0, scm_sys_lstat);
-
-SCM
-scm_sys_lstat(str)
- SCM str;
-{
-#ifdef HAVE_LSTAT
- int rv;
- struct stat stat_temp;
-
- SCM_ASSERT(SCM_NIMP(str) && SCM_STRINGP(str), str, (char *)SCM_ARG1, s_sys_lstat);
- SCM_SYSCALL(rv = lstat(SCM_CHARS(str), &stat_temp));
- if (rv != 0)
- scm_syserror_msg (s_sys_lstat, "%s: %S",
- scm_listify (scm_makfrom0str (strerror (errno)),
- str,
- SCM_UNDEFINED));
- return scm_stat2scm(&stat_temp);
-#else
- scm_sysmissing (s_sys_lstat);
- /* not reached. */
- return SCM_BOOL_F;
-#endif
-}
-
-
-SCM_PROC (s_sys_copy_file, "copy-file", 2, 0, 0, scm_sys_copy_file);
-
-SCM
-scm_sys_copy_file (oldfile, newfile)
- SCM oldfile;
- SCM newfile;
-{
- int oldfd, newfd;
- int n;
- char buf[BUFSIZ]; /* this space could be shared. */
- struct stat oldstat;
-
- SCM_ASSERT (SCM_NIMP (oldfile) && SCM_ROSTRINGP (oldfile), oldfile, SCM_ARG1, s_sys_copy_file);
- if (SCM_SUBSTRP (oldfile))
- oldfile = scm_makfromstr (SCM_ROCHARS (oldfile), SCM_ROLENGTH (oldfile), 0);
- SCM_ASSERT (SCM_NIMP (newfile) && SCM_ROSTRINGP (newfile), newfile, SCM_ARG2, s_sys_copy_file);
- if (SCM_SUBSTRP (newfile))
- newfile = scm_makfromstr (SCM_ROCHARS (newfile), SCM_ROLENGTH (newfile), 0);
- if (stat (SCM_ROCHARS (oldfile), &oldstat) == -1)
- scm_syserror (s_sys_copy_file);
- SCM_DEFER_INTS;
- oldfd = open (SCM_ROCHARS (oldfile), O_RDONLY);
- if (oldfd == -1)
- scm_syserror (s_sys_copy_file);
-
- /* use POSIX flags instead of 07777?. */
- newfd = open (SCM_ROCHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC,
- oldstat.st_mode & 07777);
- if (newfd == -1)
- scm_syserror (s_sys_copy_file);
-
- while ((n = read (oldfd, buf, sizeof buf)) > 0)
- if (write (newfd, buf, n) != n)
- {
- close (oldfd);
- close (newfd);
- scm_syserror (s_sys_copy_file);
- }
- close (oldfd);
- if (close (newfd) == -1)
- scm_syserror (s_sys_copy_file);
- SCM_ALLOW_INTS;
- return SCM_UNSPECIFIED;
-}
-
-\f
-
-void
-scm_init_filesys ()
-{
- scm_add_feature ("i/o-extensions");
-
- scm_tc16_fd = scm_newsmob (&fd_smob);
- scm_tc16_dir = scm_newsmob (&dir_smob);
-
-#include "filesys.x"
-}
+/* Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307 USA
+ *
+ * As a special exception, the Free Software Foundation gives permission
+ * for additional uses of the text contained in its release of GUILE.
+ *
+ * The exception is that, if you link the GUILE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * Your use of that executable is in no way restricted on account of
+ * linking the GUILE library code into it.
+ *
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ *
+ * This exception applies only to the code released by the
+ * Free Software Foundation under the name GUILE. If you copy
+ * code from other Free Software Foundation releases into a copy of
+ * GUILE, as the General Public License permits, the exception does
+ * not apply to the code that you add in this way. To avoid misleading
+ * anyone as to the status of such modified files, you must delete
+ * this exception notice from them.
+ *
+ * If you write modifications of your own for GUILE, it is your choice
+ * whether to permit this exception to apply to your modifications.
+ * If you do not wish that, delete this exception notice. */
+
+
+\f
+#include <stdio.h>
+#include <errno.h>
+
+#include "libguile/_scm.h"
+#include "libguile/smob.h"
+#include "libguile/feature.h"
+#include "libguile/fports.h"
+#include "libguile/iselect.h"
+#include "libguile/strings.h"
+#include "libguile/vectors.h"
+
+#include "libguile/validate.h"
+#include "libguile/filesys.h"
+
+\f
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
+
+#ifdef HAVE_DIRECT_H
+#include <direct.h>
+#endif
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef LIBC_H_WITH_UNISTD_H
+#include <libc.h>
+#endif
+
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+
+
+#if defined (__MINGW32__) || defined (_MSC_VER) || defined (__BORLANDC__)
+# include "win32-dirent.h"
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#elif HAVE_DIRENT_H
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# if HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif
+# if HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif
+# if HAVE_NDIR_H
+# include <ndir.h>
+# endif
+#endif
+
+/* Ultrix has S_IFSOCK, but no S_ISSOCK. Ipe! */
+#if defined (S_IFSOCK) && ! defined (S_ISSOCK)
+#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
+#endif
+
+/* The MinGW gcc does not define the S_ISSOCK macro. Any other native Windows
+ compiler like BorlandC or MSVC has none of these macros defined. */
+#ifdef __MINGW32__
+
+# ifdef _S_IFIFO
+# undef _S_IFIFO
+# endif
+# ifdef _S_IFCHR
+# undef _S_IFCHR
+# endif
+# ifdef _S_IFBLK
+# undef _S_IFBLK
+# endif
+# ifdef _S_IFDIR
+# undef _S_IFDIR
+# endif
+# ifdef _S_IFREG
+# undef _S_IFREG
+# endif
+# ifdef _S_IFSOCK
+# undef _S_IFSOCK
+# endif
+
+# define _S_IFIFO 0x1000 /* FIFO */
+# define _S_IFCHR 0x2000 /* Character */
+# define _S_IFBLK 0x3000 /* Block */
+# define _S_IFDIR 0x4000 /* Directory */
+# define _S_IFREG 0x8000 /* Regular */
+# define _S_IFSOCK 0xC000 /* Socket */
+
+# ifdef S_ISBLK
+# undef S_ISBLK
+# endif
+# ifdef S_ISFIFO
+# undef S_ISFIFO
+# endif
+# ifdef S_ISCHR
+# undef S_ISCHR
+# endif
+# ifdef S_ISDIR
+# undef S_ISDIR
+# endif
+# ifdef S_ISREG
+# undef S_ISREG
+# endif
+# ifdef S_ISSOCK
+# undef S_ISSOCK
+# endif
+
+# define S_ISBLK(mode) (((mode) & _S_IFMT) == _S_IFBLK)
+# define S_ISFIFO(mode) (((mode) & _S_IFMT) == _S_IFIFO)
+# define S_ISCHR(mode) (((mode) & _S_IFMT) == _S_IFCHR)
+# define S_ISDIR(mode) (((mode) & _S_IFMT) == _S_IFDIR)
+# define S_ISREG(mode) (((mode) & _S_IFMT) == _S_IFREG)
+# define S_ISSOCK(mode) (((mode) & _S_IFMT) == _S_IFSOCK)
+
+#endif /* __MINGW32__ */
+
+/* Some more definitions for the native Windows port. */
+#ifdef __MINGW32__
+# define mkdir(path, mode) mkdir (path)
+# define fsync(fd) _commit (fd)
+# define fchmod(fd, mode) (-1)
+#endif /* __MINGW32__ */
+\f
+
+
+\f
+
+/* {Permissions}
+ */
+
+#ifdef HAVE_CHOWN
+SCM_DEFINE (scm_chown, "chown", 3, 0, 0,
+ (SCM object, SCM owner, SCM group),
+ "Change the ownership and group of the file referred to by @var{object} to\n"
+ "the integer values @var{owner} and @var{group}. @var{object} can be\n"
+ "a string containing a file name or, if the platform\n"
+ "supports fchown, a port or integer file descriptor\n"
+ "which is open on the file. The return value\n"
+ "is unspecified.\n\n"
+ "If @var{object} is a symbolic link, either the\n"
+ "ownership of the link or the ownership of the referenced file will be\n"
+ "changed depending on the operating system (lchown is\n"
+ "unsupported at present). If @var{owner} or @var{group} is specified\n"
+ "as @code{-1}, then that ID is not changed.")
+#define FUNC_NAME s_scm_chown
+{
+ int rv;
+
+ object = SCM_COERCE_OUTPORT (object);
+
+ SCM_VALIDATE_INUM (2,owner);
+ SCM_VALIDATE_INUM (3,group);
+#ifdef HAVE_FCHOWN
+ if (SCM_INUMP (object) || (SCM_OPFPORTP (object)))
+ {
+ int fdes = SCM_INUMP (object) ? SCM_INUM (object)
+ : SCM_FPORT_FDES (object);
+
+ SCM_SYSCALL (rv = fchown (fdes, SCM_INUM (owner), SCM_INUM (group)));
+ }
+ else
+#endif
+ {
+ SCM_VALIDATE_STRING (1, object);
+ SCM_SYSCALL (rv = chown (SCM_STRING_CHARS (object),
+ SCM_INUM (owner), SCM_INUM (group)));
+ }
+ if (rv == -1)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif /* HAVE_CHOWN */
+
+
+SCM_DEFINE (scm_chmod, "chmod", 2, 0, 0,
+ (SCM object, SCM mode),
+ "Changes the permissions of the file referred to by @var{obj}.\n"
+ "@var{obj} can be a string containing a file name or a port or integer file\n"
+ "descriptor which is open on a file (in which case @code{fchmod} is used\n"
+ "as the underlying system call).\n"
+ "@var{mode} specifies\n"
+ "the new permissions as a decimal number, e.g., @code{(chmod \"foo\" #o755)}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_chmod
+{
+ int rv;
+ int fdes;
+
+ object = SCM_COERCE_OUTPORT (object);
+
+ SCM_VALIDATE_INUM (2,mode);
+ if (SCM_INUMP (object) || SCM_OPFPORTP (object))
+ {
+ if (SCM_INUMP (object))
+ fdes = SCM_INUM (object);
+ else
+ fdes = SCM_FPORT_FDES (object);
+ SCM_SYSCALL (rv = fchmod (fdes, SCM_INUM (mode)));
+ }
+ else
+ {
+ SCM_VALIDATE_STRING (1, object);
+ SCM_SYSCALL (rv = chmod (SCM_STRING_CHARS (object), SCM_INUM (mode)));
+ }
+ if (rv == -1)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_umask, "umask", 0, 1, 0,
+ (SCM mode),
+ "If @var{mode} is omitted, retuns a decimal number representing the current\n"
+ "file creation mask. Otherwise the file creation mask is set to\n"
+ "@var{mode} and the previous value is returned.\n\n"
+ "E.g., @code{(umask #o022)} sets the mask to octal 22, decimal 18.")
+#define FUNC_NAME s_scm_umask
+{
+ mode_t mask;
+ if (SCM_UNBNDP (mode))
+ {
+ mask = umask (0);
+ umask (mask);
+ }
+ else
+ {
+ SCM_VALIDATE_INUM (1,mode);
+ mask = umask (SCM_INUM (mode));
+ }
+ return SCM_MAKINUM (mask);
+}
+#undef FUNC_NAME
+
+\f
+
+SCM_DEFINE (scm_open_fdes, "open-fdes", 2, 1, 0,
+ (SCM path, SCM flags, SCM mode),
+ "Similar to @code{open} but return a file descriptor instead of\n"
+ "a port.")
+#define FUNC_NAME s_scm_open_fdes
+{
+ int fd;
+ int iflags;
+ int imode;
+
+ SCM_VALIDATE_STRING (1, path);
+ iflags = SCM_NUM2INT (2, flags);
+ imode = SCM_NUM2INT_DEF (3, mode, 0666);
+ SCM_SYSCALL (fd = open (SCM_STRING_CHARS (path), iflags, imode));
+ if (fd == -1)
+ SCM_SYSERROR;
+ return SCM_MAKINUM (fd);
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_open, "open", 2, 1, 0,
+ (SCM path, SCM flags, SCM mode),
+ "Open the file named by @var{path} for reading and/or writing.\n"
+ "@var{flags} is an integer specifying how the file should be opened.\n"
+ "@var{mode} is an integer specifying the permission bits of the file, if\n"
+ "it needs to be created, before the umask is applied. The default is 666\n"
+ "(Unix itself has no default).\n\n"
+ "@var{flags} can be constructed by combining variables using @code{logior}.\n"
+ "Basic flags are:\n\n"
+ "@defvar O_RDONLY\n"
+ "Open the file read-only.\n"
+ "@end defvar\n"
+ "@defvar O_WRONLY\n"
+ "Open the file write-only. \n"
+ "@end defvar\n"
+ "@defvar O_RDWR\n"
+ "Open the file read/write.\n"
+ "@end defvar\n"
+ "@defvar O_APPEND\n"
+ "Append to the file instead of truncating.\n"
+ "@end defvar\n"
+ "@defvar O_CREAT\n"
+ "Create the file if it does not already exist.\n"
+ "@end defvar\n\n"
+ "See the Unix documentation of the @code{open} system call\n"
+ "for additional flags.")
+#define FUNC_NAME s_scm_open
+{
+ SCM newpt;
+ char *port_mode;
+ int fd;
+ int iflags;
+
+ fd = SCM_INUM (scm_open_fdes (path, flags, mode));
+ iflags = SCM_NUM2INT (2, flags);
+ if (iflags & O_RDWR)
+ {
+ if (iflags & O_APPEND)
+ port_mode = "a+";
+ else if (iflags & O_CREAT)
+ port_mode = "w+";
+ else
+ port_mode = "r+";
+ }
+ else {
+ if (iflags & O_APPEND)
+ port_mode = "a";
+ else if (iflags & O_WRONLY)
+ port_mode = "w";
+ else
+ port_mode = "r";
+ }
+ newpt = scm_fdes_to_port (fd, port_mode, path);
+ return newpt;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_close, "close", 1, 0, 0,
+ (SCM fd_or_port),
+ "Similar to close-port (@pxref{Generic Port Operations, close-port}),\n"
+ "but also works on file descriptors. A side\n"
+ "effect of closing a file descriptor is that any ports using that file\n"
+ "descriptor are moved to a different file descriptor and have\n"
+ "their revealed counts set to zero.")
+#define FUNC_NAME s_scm_close
+{
+ int rv;
+ int fd;
+
+ fd_or_port = SCM_COERCE_OUTPORT (fd_or_port);
+
+ if (SCM_PORTP (fd_or_port))
+ return scm_close_port (fd_or_port);
+ SCM_VALIDATE_INUM (1,fd_or_port);
+ fd = SCM_INUM (fd_or_port);
+ scm_evict_ports (fd); /* see scsh manual. */
+ SCM_SYSCALL (rv = close (fd));
+ /* following scsh, closing an already closed file descriptor is
+ not an error. */
+ if (rv < 0 && errno != EBADF)
+ SCM_SYSERROR;
+ return SCM_BOOL (rv >= 0);
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_close_fdes, "close-fdes", 1, 0, 0,
+ (SCM fd),
+ "A simple wrapper for the @code{close} system call.\n"
+ "Close file descriptor @var{fd}, which must be an integer.\n"
+ "Unlike close (@pxref{Ports and File Descriptors, close}),\n"
+ "the file descriptor will be closed even if a port is using it.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_close_fdes
+{
+ int c_fd;
+ int rv;
+
+ SCM_VALIDATE_INUM_COPY (1, fd, c_fd);
+ SCM_SYSCALL (rv = close (c_fd));
+ if (rv < 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+\f
+/* {Files}
+ */
+
+SCM_SYMBOL (scm_sym_regular, "regular");
+SCM_SYMBOL (scm_sym_directory, "directory");
+#ifdef HAVE_S_ISLNK
+SCM_SYMBOL (scm_sym_symlink, "symlink");
+#endif
+SCM_SYMBOL (scm_sym_block_special, "block-special");
+SCM_SYMBOL (scm_sym_char_special, "char-special");
+SCM_SYMBOL (scm_sym_fifo, "fifo");
+SCM_SYMBOL (scm_sym_sock, "socket");
+SCM_SYMBOL (scm_sym_unknown, "unknown");
+
+static SCM
+scm_stat2scm (struct stat *stat_temp)
+{
+ SCM ans = scm_c_make_vector (15, SCM_UNSPECIFIED);
+ SCM *ve = SCM_VELTS (ans);
+
+ ve[0] = scm_ulong2num ((unsigned long) stat_temp->st_dev);
+ ve[1] = scm_ulong2num ((unsigned long) stat_temp->st_ino);
+ ve[2] = scm_ulong2num ((unsigned long) stat_temp->st_mode);
+ ve[3] = scm_ulong2num ((unsigned long) stat_temp->st_nlink);
+ ve[4] = scm_ulong2num ((unsigned long) stat_temp->st_uid);
+ ve[5] = scm_ulong2num ((unsigned long) stat_temp->st_gid);
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+ ve[6] = scm_ulong2num ((unsigned long) stat_temp->st_rdev);
+#else
+ ve[6] = SCM_BOOL_F;
+#endif
+ ve[7] = scm_ulong2num ((unsigned long) stat_temp->st_size);
+ ve[8] = scm_ulong2num ((unsigned long) stat_temp->st_atime);
+ ve[9] = scm_ulong2num ((unsigned long) stat_temp->st_mtime);
+ ve[10] = scm_ulong2num ((unsigned long) stat_temp->st_ctime);
+#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
+ ve[11] = scm_ulong2num ((unsigned long) stat_temp->st_blksize);
+#else
+ ve[11] = scm_ulong2num (4096L);
+#endif
+#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
+ ve[12] = scm_ulong2num ((unsigned long) stat_temp->st_blocks);
+#else
+ ve[12] = SCM_BOOL_F;
+#endif
+ {
+ int mode = stat_temp->st_mode;
+
+ if (S_ISREG (mode))
+ ve[13] = scm_sym_regular;
+ else if (S_ISDIR (mode))
+ ve[13] = scm_sym_directory;
+#ifdef HAVE_S_ISLNK
+ else if (S_ISLNK (mode))
+ ve[13] = scm_sym_symlink;
+#endif
+ else if (S_ISBLK (mode))
+ ve[13] = scm_sym_block_special;
+ else if (S_ISCHR (mode))
+ ve[13] = scm_sym_char_special;
+ else if (S_ISFIFO (mode))
+ ve[13] = scm_sym_fifo;
+#ifdef S_ISSOCK
+ else if (S_ISSOCK (mode))
+ ve[13] = scm_sym_sock;
+#endif
+ else
+ ve[13] = scm_sym_unknown;
+
+ ve[14] = SCM_MAKINUM ((~S_IFMT) & mode);
+
+ /* the layout of the bits in ve[14] is intended to be portable.
+ If there are systems that don't follow the usual convention,
+ the following could be used:
+
+ tmp = 0;
+ if (S_ISUID & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IRGRP & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_ISVTX & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IRUSR & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IWUSR & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IXUSR & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IWGRP & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IXGRP & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IROTH & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IWOTH & mode) tmp += 1;
+ tmp <<= 1;
+ if (S_IXOTH & mode) tmp += 1;
+
+ ve[14] = SCM_MAKINUM (tmp);
+
+ */
+ }
+
+ return ans;
+}
+
+#ifdef __MINGW32__
+/*
+ * Try getting the appropiate stat buffer for a given file descriptor
+ * under Windows. It differentiates between file, pipe and socket
+ * descriptors.
+ */
+static int fstat_Win32 (int fdes, struct stat *buf)
+{
+ int error, optlen = sizeof (int);
+
+ memset (buf, 0, sizeof (struct stat));
+
+ /* Is this a socket ? */
+ if (getsockopt (fdes, SOL_SOCKET, SO_ERROR, (void *) &error, &optlen) >= 0)
+ {
+ buf->st_mode = _S_IFSOCK | _S_IREAD | _S_IWRITE | _S_IEXEC;
+ buf->st_nlink = 1;
+ buf->st_atime = buf->st_ctime = buf->st_mtime = time (NULL);
+ return 0;
+ }
+ /* Maybe a regular file or pipe ? */
+ return fstat (fdes, buf);
+}
+#endif /* __MINGW32__ */
+
+SCM_DEFINE (scm_stat, "stat", 1, 0, 0,
+ (SCM object),
+ "Return an object containing various information about the file\n"
+ "determined by @var{obj}. @var{obj} can be a string containing\n"
+ "a file name or a port or integer file descriptor which is open\n"
+ "on a file (in which case @code{fstat} is used as the underlying\n"
+ "system call).\n"
+ "\n"
+ "The object returned by @code{stat} can be passed as a single\n"
+ "parameter to the following procedures, all of which return\n"
+ "integers:\n"
+ "\n"
+ "@table @code\n"
+ "@item stat:dev\n"
+ "The device containing the file.\n"
+ "@item stat:ino\n"
+ "The file serial number, which distinguishes this file from all\n"
+ "other files on the same device.\n"
+ "@item stat:mode\n"
+ "The mode of the file. This includes file type information and\n"
+ "the file permission bits. See @code{stat:type} and\n"
+ "@code{stat:perms} below.\n"
+ "@item stat:nlink\n"
+ "The number of hard links to the file.\n"
+ "@item stat:uid\n"
+ "The user ID of the file's owner.\n"
+ "@item stat:gid\n"
+ "The group ID of the file.\n"
+ "@item stat:rdev\n"
+ "Device ID; this entry is defined only for character or block\n"
+ "special files.\n"
+ "@item stat:size\n"
+ "The size of a regular file in bytes.\n"
+ "@item stat:atime\n"
+ "The last access time for the file.\n"
+ "@item stat:mtime\n"
+ "The last modification time for the file.\n"
+ "@item stat:ctime\n"
+ "The last modification time for the attributes of the file.\n"
+ "@item stat:blksize\n"
+ "The optimal block size for reading or writing the file, in\n"
+ "bytes.\n"
+ "@item stat:blocks\n"
+ "The amount of disk space that the file occupies measured in\n"
+ "units of 512 byte blocks.\n"
+ "@end table\n"
+ "\n"
+ "In addition, the following procedures return the information\n"
+ "from stat:mode in a more convenient form:\n"
+ "\n"
+ "@table @code\n"
+ "@item stat:type\n"
+ "A symbol representing the type of file. Possible values are\n"
+ "regular, directory, symlink, block-special, char-special, fifo,\n"
+ "socket and unknown\n"
+ "@item stat:perms\n"
+ "An integer representing the access permission bits.\n"
+ "@end table")
+#define FUNC_NAME s_scm_stat
+{
+ int rv;
+ int fdes;
+ struct stat stat_temp;
+
+ if (SCM_INUMP (object))
+ {
+#ifdef __MINGW32__
+ SCM_SYSCALL (rv = fstat_Win32 (SCM_INUM (object), &stat_temp));
+#else
+ SCM_SYSCALL (rv = fstat (SCM_INUM (object), &stat_temp));
+#endif
+ }
+ else if (SCM_STRINGP (object))
+ {
+#ifdef __MINGW32__
+ char *p, *file = strdup (SCM_STRING_CHARS (object));
+ p = file + strlen (file) - 1;
+ while (p > file && (*p == '/' || *p == '\\'))
+ *p-- = '\0';
+ SCM_SYSCALL (rv = stat (file, &stat_temp));
+ free (file);
+#else
+ SCM_SYSCALL (rv = stat (SCM_STRING_CHARS (object), &stat_temp));
+#endif
+ }
+ else
+ {
+ object = SCM_COERCE_OUTPORT (object);
+ SCM_VALIDATE_OPFPORT (1, object);
+ fdes = SCM_FPORT_FDES (object);
+#ifdef __MINGW32__
+ SCM_SYSCALL (rv = fstat_Win32 (fdes, &stat_temp));
+#else
+ SCM_SYSCALL (rv = fstat (fdes, &stat_temp));
+#endif
+ }
+
+ if (rv == -1)
+ {
+ int en = errno;
+
+ SCM_SYSERROR_MSG ("~A: ~S",
+ scm_list_2 (scm_makfrom0str (strerror (errno)),
+ object),
+ en);
+ }
+ return scm_stat2scm (&stat_temp);
+}
+#undef FUNC_NAME
+
+\f
+/* {Modifying Directories}
+ */
+
+#ifdef HAVE_LINK
+SCM_DEFINE (scm_link, "link", 2, 0, 0,
+ (SCM oldpath, SCM newpath),
+ "Creates a new name @var{newpath} in the file system for the\n"
+ "file named by @var{oldpath}. If @var{oldpath} is a symbolic\n"
+ "link, the link may or may not be followed depending on the\n"
+ "system.")
+#define FUNC_NAME s_scm_link
+{
+ int val;
+
+ SCM_VALIDATE_STRING (1, oldpath);
+ SCM_VALIDATE_STRING (2, newpath);
+ SCM_SYSCALL (val = link (SCM_STRING_CHARS (oldpath),
+ SCM_STRING_CHARS (newpath)));
+ if (val != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif /* HAVE_LINK */
+
+
+
+SCM_DEFINE (scm_rename, "rename-file", 2, 0, 0,
+ (SCM oldname, SCM newname),
+ "Renames the file specified by @var{oldname} to @var{newname}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_rename
+{
+ int rv;
+ SCM_VALIDATE_STRING (1, oldname);
+ SCM_VALIDATE_STRING (2, newname);
+#ifdef HAVE_RENAME
+ SCM_SYSCALL (rv = rename (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname)));
+#else
+ SCM_SYSCALL (rv = link (SCM_STRING_CHARS (oldname), SCM_STRING_CHARS (newname)));
+ if (rv == 0)
+ {
+ SCM_SYSCALL (rv = unlink (SCM_STRING_CHARS (oldname)));;
+ if (rv != 0)
+ /* unlink failed. remove new name */
+ SCM_SYSCALL (unlink (SCM_STRING_CHARS (newname)));
+ }
+#endif
+ if (rv != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_delete_file, "delete-file", 1, 0, 0,
+ (SCM str),
+ "Deletes (or \"unlinks\") the file specified by @var{path}.")
+#define FUNC_NAME s_scm_delete_file
+{
+ int ans;
+ SCM_VALIDATE_STRING (1, str);
+ SCM_SYSCALL (ans = unlink (SCM_STRING_CHARS (str)));
+ if (ans != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+#ifdef HAVE_MKDIR
+SCM_DEFINE (scm_mkdir, "mkdir", 1, 1, 0,
+ (SCM path, SCM mode),
+ "Create a new directory named by @var{path}. If @var{mode} is omitted\n"
+ "then the permissions of the directory file are set using the current\n"
+ "umask. Otherwise they are set to the decimal value specified with\n"
+ "@var{mode}. The return value is unspecified.")
+#define FUNC_NAME s_scm_mkdir
+{
+ int rv;
+ mode_t mask;
+ SCM_VALIDATE_STRING (1, path);
+ if (SCM_UNBNDP (mode))
+ {
+ mask = umask (0);
+ umask (mask);
+ SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), 0777 ^ mask));
+ }
+ else
+ {
+ SCM_VALIDATE_INUM (2,mode);
+ SCM_SYSCALL (rv = mkdir (SCM_STRING_CHARS (path), SCM_INUM (mode)));
+ }
+ if (rv != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif /* HAVE_MKDIR */
+
+#ifdef HAVE_RMDIR
+SCM_DEFINE (scm_rmdir, "rmdir", 1, 0, 0,
+ (SCM path),
+ "Remove the existing directory named by @var{path}. The directory must\n"
+ "be empty for this to succeed. The return value is unspecified.")
+#define FUNC_NAME s_scm_rmdir
+{
+ int val;
+
+ SCM_VALIDATE_STRING (1, path);
+ SCM_SYSCALL (val = rmdir (SCM_STRING_CHARS (path)));
+ if (val != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif
+
+\f
+
+/* {Examining Directories}
+ */
+
+scm_t_bits scm_tc16_dir;
+
+
+SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0,
+ (SCM obj),
+ "Return a boolean indicating whether @var{object} is a directory\n"
+ "stream as returned by @code{opendir}.")
+#define FUNC_NAME s_scm_directory_stream_p
+{
+ return SCM_BOOL (SCM_DIRP (obj));
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0,
+ (SCM dirname),
+ "Open the directory specified by @var{path} and return a directory\n"
+ "stream.")
+#define FUNC_NAME s_scm_opendir
+{
+ DIR *ds;
+ SCM_VALIDATE_STRING (1, dirname);
+ SCM_SYSCALL (ds = opendir (SCM_STRING_CHARS (dirname)));
+ if (ds == NULL)
+ SCM_SYSERROR;
+ SCM_RETURN_NEWSMOB (scm_tc16_dir | SCM_DIR_FLAG_OPEN, ds);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0,
+ (SCM port),
+ "Return (as a string) the next directory entry from the directory stream\n"
+ "@var{stream}. If there is no remaining entry to be read then the\n"
+ "end of file object is returned.")
+#define FUNC_NAME s_scm_readdir
+{
+ struct dirent *rdent;
+
+ SCM_VALIDATE_DIR (1, port);
+ if (!SCM_DIR_OPEN_P (port))
+ SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
+
+ errno = 0;
+ SCM_SYSCALL (rdent = readdir ((DIR *) SCM_CELL_WORD_1 (port)));
+ if (errno != 0)
+ SCM_SYSERROR;
+
+ return (rdent ? scm_mem2string (rdent->d_name, NAMLEN (rdent))
+ : SCM_EOF_VAL);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0,
+ (SCM port),
+ "Reset the directory port @var{stream} so that the next call to\n"
+ "@code{readdir} will return the first directory entry.")
+#define FUNC_NAME s_scm_rewinddir
+{
+ SCM_VALIDATE_DIR (1, port);
+ if (!SCM_DIR_OPEN_P (port))
+ SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
+
+ rewinddir ((DIR *) SCM_CELL_WORD_1 (port));
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0,
+ (SCM port),
+ "Close the directory stream @var{stream}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_closedir
+{
+ SCM_VALIDATE_DIR (1, port);
+
+ if (SCM_DIR_OPEN_P (port))
+ {
+ int sts;
+
+ SCM_SYSCALL (sts = closedir ((DIR *) SCM_CELL_WORD_1 (port)));
+ if (sts != 0)
+ SCM_SYSERROR;
+
+ SCM_SET_CELL_WORD_0 (port, scm_tc16_dir);
+ }
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+static int
+scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
+{
+ scm_puts ("#<", port);
+ if (!SCM_DIR_OPEN_P (exp))
+ scm_puts ("closed: ", port);
+ scm_puts ("directory stream ", port);
+ scm_intprint (SCM_CELL_WORD_1 (exp), 16, port);
+ scm_putc ('>', port);
+ return 1;
+}
+
+
+static size_t
+scm_dir_free (SCM p)
+{
+ if (SCM_DIR_OPEN_P (p))
+ closedir ((DIR *) SCM_CELL_WORD_1 (p));
+ return 0;
+}
+
+\f
+/* {Navigating Directories}
+ */
+
+
+SCM_DEFINE (scm_chdir, "chdir", 1, 0, 0,
+ (SCM str),
+ "Change the current working directory to @var{path}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_chdir
+{
+ int ans;
+
+ SCM_VALIDATE_STRING (1, str);
+ SCM_SYSCALL (ans = chdir (SCM_STRING_CHARS (str)));
+ if (ans != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+#ifdef HAVE_GETCWD
+SCM_DEFINE (scm_getcwd, "getcwd", 0, 0, 0,
+ (),
+ "Return the name of the current working directory.")
+#define FUNC_NAME s_scm_getcwd
+{
+ char *rv;
+ size_t size = 100;
+ char *wd;
+ SCM result;
+
+ wd = scm_must_malloc (size, FUNC_NAME);
+ while ((rv = getcwd (wd, size)) == 0 && errno == ERANGE)
+ {
+ scm_must_free (wd);
+ size *= 2;
+ wd = scm_must_malloc (size, FUNC_NAME);
+ }
+ if (rv == 0)
+ SCM_SYSERROR;
+ result = scm_mem2string (wd, strlen (wd));
+ scm_must_free (wd);
+ return result;
+}
+#undef FUNC_NAME
+#endif /* HAVE_GETCWD */
+
+\f
+
+#ifdef HAVE_SELECT
+
+/* check that element is a port or file descriptor. if it's a port
+ and its buffer is ready for use, add it to the ports_ready list.
+ otherwise add its file descriptor to *set. the type of list can be
+ determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes,
+ SCM_ARG3 for excepts. */
+static int
+set_element (SELECT_TYPE *set, SCM *ports_ready, SCM element, int pos)
+{
+ int fd;
+
+ if (SCM_INUMP (element))
+ {
+ fd = SCM_INUM (element);
+ }
+ else
+ {
+ int use_buf = 0;
+
+ element = SCM_COERCE_OUTPORT (element);
+ SCM_ASSERT (SCM_OPFPORTP (element), element, pos, "select");
+ if (pos == SCM_ARG1)
+ {
+ /* check whether port has buffered input. */
+ scm_t_port *pt = SCM_PTAB_ENTRY (element);
+
+ if (pt->read_pos < pt->read_end)
+ use_buf = 1;
+ }
+ else if (pos == SCM_ARG2)
+ {
+ /* check whether port's output buffer has room. */
+ scm_t_port *pt = SCM_PTAB_ENTRY (element);
+
+ /* > 1 since writing the last byte in the buffer causes flush. */
+ if (pt->write_end - pt->write_pos > 1)
+ use_buf = 1;
+ }
+ fd = use_buf ? -1 : SCM_FPORT_FDES (element);
+ }
+ if (fd == -1)
+ *ports_ready = scm_cons (element, *ports_ready);
+ else
+ FD_SET (fd, set);
+ return fd;
+}
+
+/* check list_or_vec, a list or vector of ports or file descriptors,
+ adding each member to either the ports_ready list (if it's a port
+ with a usable buffer) or to *set. the kind of list_or_vec can be
+ determined from pos: SCM_ARG1 for reads, SCM_ARG2 for writes,
+ SCM_ARG3 for excepts. */
+static int
+fill_select_type (SELECT_TYPE *set, SCM *ports_ready, SCM list_or_vec, int pos)
+{
+ int max_fd = 0;
+
+ if (SCM_VECTORP (list_or_vec))
+ {
+ int i = SCM_VECTOR_LENGTH (list_or_vec);
+ SCM *ve = SCM_VELTS (list_or_vec);
+
+ while (--i >= 0)
+ {
+ int fd = set_element (set, ports_ready, ve[i], pos);
+
+ if (fd > max_fd)
+ max_fd = fd;
+ }
+ }
+ else
+ {
+ while (!SCM_NULLP (list_or_vec))
+ {
+ int fd = set_element (set, ports_ready, SCM_CAR (list_or_vec), pos);
+
+ if (fd > max_fd)
+ max_fd = fd;
+ list_or_vec = SCM_CDR (list_or_vec);
+ }
+ }
+
+ return max_fd;
+}
+
+/* if element (a file descriptor or port) appears in *set, cons it to
+ list. return list. */
+static SCM
+get_element (SELECT_TYPE *set, SCM element, SCM list)
+{
+ int fd;
+
+ if (SCM_INUMP (element))
+ {
+ fd = SCM_INUM (element);
+ }
+ else
+ {
+ fd = SCM_FPORT_FDES (SCM_COERCE_OUTPORT (element));
+ }
+ if (FD_ISSET (fd, set))
+ list = scm_cons (element, list);
+ return list;
+}
+
+/* construct component of scm_select return value.
+ set: pointer to set of file descriptors found by select to be ready
+ ports_ready: ports ready due to buffering
+ list_or_vec: original list/vector handed to scm_select.
+ the return value is a list/vector of ready ports/file descriptors.
+ works by finding the objects in list which correspond to members of
+ *set and appending them to ports_ready. result is converted to a
+ vector if list_or_vec is a vector. */
+static SCM
+retrieve_select_type (SELECT_TYPE *set, SCM ports_ready, SCM list_or_vec)
+{
+ SCM answer_list = ports_ready;
+
+ if (SCM_VECTORP (list_or_vec))
+ {
+ int i = SCM_VECTOR_LENGTH (list_or_vec);
+ SCM *ve = SCM_VELTS (list_or_vec);
+
+ while (--i >= 0)
+ {
+ answer_list = get_element (set, ve[i], answer_list);
+ }
+ return scm_vector (answer_list);
+ }
+ else
+ {
+ /* list_or_vec must be a list. */
+ while (!SCM_NULLP (list_or_vec))
+ {
+ answer_list = get_element (set, SCM_CAR (list_or_vec), answer_list);
+ list_or_vec = SCM_CDR (list_or_vec);
+ }
+ return answer_list;
+ }
+}
+
+/* Static helper functions above refer to s_scm_select directly as s_select */
+SCM_DEFINE (scm_select, "select", 3, 2, 0,
+ (SCM reads, SCM writes, SCM excepts, SCM secs, SCM usecs),
+ "This procedure has a variety of uses: waiting for the ability\n"
+ "to provide input, accept output, or the existance of\n"
+ "exceptional conditions on a collection of ports or file\n"
+ "descriptors, or waiting for a timeout to occur.\n"
+ "It also returns if interrupted by a signal.\n\n"
+ "@var{reads}, @var{writes} and @var{excepts} can be lists or\n"
+ "vectors, with each member a port or a file descriptor.\n"
+ "The value returned is a list of three corresponding\n"
+ "lists or vectors containing only the members which meet the\n"
+ "specified requirement. The ability of port buffers to\n"
+ "provide input or accept output is taken into account.\n"
+ "Ordering of the input lists or vectors is not preserved.\n\n"
+ "The optional arguments @var{secs} and @var{usecs} specify the\n"
+ "timeout. Either @var{secs} can be specified alone, as\n"
+ "either an integer or a real number, or both @var{secs} and\n"
+ "@var{usecs} can be specified as integers, in which case\n"
+ "@var{usecs} is an additional timeout expressed in\n"
+ "microseconds. If @var{secs} is omitted or is @code{#f} then\n"
+ "select will wait for as long as it takes for one of the other\n"
+ "conditions to be satisfied.\n\n"
+ "The scsh version of @code{select} differs as follows:\n"
+ "Only vectors are accepted for the first three arguments.\n"
+ "The @var{usecs} argument is not supported.\n"
+ "Multiple values are returned instead of a list.\n"
+ "Duplicates in the input vectors appear only once in output.\n"
+ "An additional @code{select!} interface is provided.\n"
+ )
+#define FUNC_NAME s_scm_select
+{
+ struct timeval timeout;
+ struct timeval * time_ptr;
+ SELECT_TYPE read_set;
+ SELECT_TYPE write_set;
+ SELECT_TYPE except_set;
+ int read_count;
+ int write_count;
+ int except_count;
+ /* these lists accumulate ports which are ready due to buffering.
+ their file descriptors don't need to be added to the select sets. */
+ SCM read_ports_ready = SCM_EOL;
+ SCM write_ports_ready = SCM_EOL;
+ int max_fd;
+
+ if (SCM_VECTORP (reads))
+ {
+ read_count = SCM_VECTOR_LENGTH (reads);
+ }
+ else
+ {
+ read_count = scm_ilength (reads);
+ SCM_ASSERT (read_count >= 0, reads, SCM_ARG1, FUNC_NAME);
+ }
+ if (SCM_VECTORP (writes))
+ {
+ write_count = SCM_VECTOR_LENGTH (writes);
+ }
+ else
+ {
+ write_count = scm_ilength (writes);
+ SCM_ASSERT (write_count >= 0, writes, SCM_ARG2, FUNC_NAME);
+ }
+ if (SCM_VECTORP (excepts))
+ {
+ except_count = SCM_VECTOR_LENGTH (excepts);
+ }
+ else
+ {
+ except_count = scm_ilength (excepts);
+ SCM_ASSERT (except_count >= 0, excepts, SCM_ARG3, FUNC_NAME);
+ }
+
+ FD_ZERO (&read_set);
+ FD_ZERO (&write_set);
+ FD_ZERO (&except_set);
+
+ max_fd = fill_select_type (&read_set, &read_ports_ready, reads, SCM_ARG1);
+
+ {
+ int write_max = fill_select_type (&write_set, &write_ports_ready,
+ writes, SCM_ARG2);
+ int except_max = fill_select_type (&except_set, NULL,
+ excepts, SCM_ARG3);
+
+ if (write_max > max_fd)
+ max_fd = write_max;
+ if (except_max > max_fd)
+ max_fd = except_max;
+ }
+
+ /* if there's a port with a ready buffer, don't block, just
+ check for ready file descriptors. */
+ if (!SCM_NULLP (read_ports_ready) || !SCM_NULLP (write_ports_ready))
+ {
+ timeout.tv_sec = 0;
+ timeout.tv_usec = 0;
+ time_ptr = &timeout;
+ }
+ else if (SCM_UNBNDP (secs) || SCM_FALSEP (secs))
+ time_ptr = 0;
+ else
+ {
+ if (SCM_INUMP (secs))
+ {
+ timeout.tv_sec = SCM_INUM (secs);
+ if (SCM_UNBNDP (usecs))
+ timeout.tv_usec = 0;
+ else
+ {
+ SCM_VALIDATE_INUM (5,usecs);
+ timeout.tv_usec = SCM_INUM (usecs);
+ }
+ }
+ else
+ {
+ double fl = scm_num2dbl (secs, FUNC_NAME);
+
+ if (!SCM_UNBNDP (usecs))
+ SCM_WRONG_TYPE_ARG (4, secs);
+ if (fl > LONG_MAX)
+ SCM_OUT_OF_RANGE (4, secs);
+ timeout.tv_sec = (long) fl;
+ timeout.tv_usec = (long) ((fl - timeout.tv_sec) * 1000000);
+ }
+ time_ptr = &timeout;
+ }
+
+ {
+#ifdef GUILE_ISELECT
+ int rv = scm_internal_select (max_fd + 1,
+ &read_set, &write_set, &except_set,
+ time_ptr);
+#else
+ int rv = select (max_fd + 1,
+ &read_set, &write_set, &except_set, time_ptr);
+#endif
+ if (rv < 0)
+ SCM_SYSERROR;
+ }
+ return scm_list_3 (retrieve_select_type (&read_set, read_ports_ready, reads),
+ retrieve_select_type (&write_set, write_ports_ready, writes),
+ retrieve_select_type (&except_set, SCM_EOL, excepts));
+}
+#undef FUNC_NAME
+#endif /* HAVE_SELECT */
+
+\f
+
+#ifdef HAVE_FCNTL
+SCM_DEFINE (scm_fcntl, "fcntl", 2, 1, 0,
+ (SCM object, SCM cmd, SCM value),
+ "Apply @var{command} to the specified file descriptor or the underlying\n"
+ "file descriptor of the specified port. @var{value} is an optional\n"
+ "integer argument.\n\n"
+ "Values for @var{command} are:\n\n"
+ "@table @code\n"
+ "@item F_DUPFD\n"
+ "Duplicate a file descriptor\n"
+ "@item F_GETFD\n"
+ "Get flags associated with the file descriptor.\n"
+ "@item F_SETFD\n"
+ "Set flags associated with the file descriptor to @var{value}.\n"
+ "@item F_GETFL\n"
+ "Get flags associated with the open file.\n"
+ "@item F_SETFL\n"
+ "Set flags associated with the open file to @var{value}\n"
+ "@item F_GETOWN\n"
+ "Get the process ID of a socket's owner, for @code{SIGIO} signals.\n"
+ "@item F_SETOWN\n"
+ "Set the process that owns a socket to @var{value}, for @code{SIGIO} signals.\n"
+ "@item FD_CLOEXEC\n"
+ "The value used to indicate the \"close on exec\" flag with @code{F_GETFL} or\n"
+ "@code{F_SETFL}.\n"
+ "@end table")
+#define FUNC_NAME s_scm_fcntl
+{
+ int rv;
+ int fdes;
+ int ivalue;
+
+ object = SCM_COERCE_OUTPORT (object);
+
+ SCM_VALIDATE_INUM (2,cmd);
+ if (SCM_OPFPORTP (object))
+ fdes = SCM_FPORT_FDES (object);
+ else
+ {
+ SCM_VALIDATE_INUM (1,object);
+ fdes = SCM_INUM (object);
+ }
+
+ if (SCM_UNBNDP (value)) {
+ ivalue = 0;
+ } else {
+ SCM_VALIDATE_INUM_COPY (SCM_ARG3, value, ivalue);
+ }
+
+ SCM_SYSCALL (rv = fcntl (fdes, SCM_INUM (cmd), ivalue));
+ if (rv == -1)
+ SCM_SYSERROR;
+ return SCM_MAKINUM (rv);
+}
+#undef FUNC_NAME
+#endif /* HAVE_FCNTL */
+
+SCM_DEFINE (scm_fsync, "fsync", 1, 0, 0,
+ (SCM object),
+ "Copies any unwritten data for the specified output file descriptor to disk.\n"
+ "If @var{port/fd} is a port, its buffer is flushed before the underlying\n"
+ "file descriptor is fsync'd.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_fsync
+{
+ int fdes;
+
+ object = SCM_COERCE_OUTPORT (object);
+
+ if (SCM_OPFPORTP (object))
+ {
+ scm_flush (object);
+ fdes = SCM_FPORT_FDES (object);
+ }
+ else
+ {
+ SCM_VALIDATE_INUM (1,object);
+ fdes = SCM_INUM (object);
+ }
+ if (fsync (fdes) == -1)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+#ifdef HAVE_SYMLINK
+SCM_DEFINE (scm_symlink, "symlink", 2, 0, 0,
+ (SCM oldpath, SCM newpath),
+ "Create a symbolic link named @var{path-to} with the value (i.e., pointing to)\n"
+ "@var{path-from}. The return value is unspecified.")
+#define FUNC_NAME s_scm_symlink
+{
+ int val;
+
+ SCM_VALIDATE_STRING (1, oldpath);
+ SCM_VALIDATE_STRING (2, newpath);
+ SCM_SYSCALL (val = symlink (SCM_STRING_CHARS (oldpath), SCM_STRING_CHARS (newpath)));
+ if (val != 0)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+#endif /* HAVE_SYMLINK */
+
+#ifdef HAVE_READLINK
+SCM_DEFINE (scm_readlink, "readlink", 1, 0, 0,
+ (SCM path),
+ "Return the value of the symbolic link named by @var{path} (a\n"
+ "string), i.e., the file that the link points to.")
+#define FUNC_NAME s_scm_readlink
+{
+ int rv;
+ int size = 100;
+ char *buf;
+ SCM result;
+ SCM_VALIDATE_STRING (1, path);
+ buf = scm_must_malloc (size, FUNC_NAME);
+ while ((rv = readlink (SCM_STRING_CHARS (path), buf, size)) == size)
+ {
+ scm_must_free (buf);
+ size *= 2;
+ buf = scm_must_malloc (size, FUNC_NAME);
+ }
+ if (rv == -1)
+ SCM_SYSERROR;
+ result = scm_mem2string (buf, rv);
+ scm_must_free (buf);
+ return result;
+}
+#undef FUNC_NAME
+#endif /* HAVE_READLINK */
+
+#ifdef HAVE_LSTAT
+SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0,
+ (SCM str),
+ "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n"
+ "it will return information about a symbolic link itself, not the \n"
+ "file it points to. @var{path} must be a string.")
+#define FUNC_NAME s_scm_lstat
+{
+ int rv;
+ struct stat stat_temp;
+
+ SCM_VALIDATE_STRING (1, str);
+ SCM_SYSCALL (rv = lstat (SCM_STRING_CHARS (str), &stat_temp));
+ if (rv != 0)
+ {
+ int en = errno;
+
+ SCM_SYSERROR_MSG ("~A: ~S",
+ scm_list_2 (scm_makfrom0str (strerror (errno)), str),
+ en);
+ }
+ return scm_stat2scm(&stat_temp);
+}
+#undef FUNC_NAME
+#endif /* HAVE_LSTAT */
+
+SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0,
+ (SCM oldfile, SCM newfile),
+ "Copy the file specified by @var{path-from} to @var{path-to}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_copy_file
+{
+ int oldfd, newfd;
+ int n;
+ char buf[BUFSIZ];
+ struct stat oldstat;
+
+ SCM_VALIDATE_STRING (1, oldfile);
+ SCM_VALIDATE_STRING (2, newfile);
+ if (stat (SCM_STRING_CHARS (oldfile), &oldstat) == -1)
+ SCM_SYSERROR;
+ oldfd = open (SCM_STRING_CHARS (oldfile), O_RDONLY);
+ if (oldfd == -1)
+ SCM_SYSERROR;
+
+ /* use POSIX flags instead of 07777?. */
+ newfd = open (SCM_STRING_CHARS (newfile), O_WRONLY | O_CREAT | O_TRUNC,
+ oldstat.st_mode & 07777);
+ if (newfd == -1)
+ SCM_SYSERROR;
+
+ while ((n = read (oldfd, buf, sizeof buf)) > 0)
+ if (write (newfd, buf, n) != n)
+ {
+ close (oldfd);
+ close (newfd);
+ SCM_SYSERROR;
+ }
+ close (oldfd);
+ if (close (newfd) == -1)
+ SCM_SYSERROR;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+\f
+/* Filename manipulation */
+
+SCM scm_dot_string;
+
+SCM_DEFINE (scm_dirname, "dirname", 1, 0, 0,
+ (SCM filename),
+ "Return the directory name component of the file name\n"
+ "@var{filename}. If @var{filename} does not contain a directory\n"
+ "component, @code{.} is returned.")
+#define FUNC_NAME s_scm_dirname
+{
+ char *s;
+ long int i;
+ unsigned long int len;
+
+ SCM_VALIDATE_STRING (1,filename);
+
+ s = SCM_STRING_CHARS (filename);
+ len = SCM_STRING_LENGTH (filename);
+
+ i = len - 1;
+#ifdef __MINGW32__
+ while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i;
+ while (i >= 0 && (s[i] != '/' && s[i] != '\\')) --i;
+ while (i >= 0 && (s[i] == '/' || s[i] == '\\')) --i;
+#else
+ while (i >= 0 && s[i] == '/') --i;
+ while (i >= 0 && s[i] != '/') --i;
+ while (i >= 0 && s[i] == '/') --i;
+#endif /* ndef __MINGW32__ */
+ if (i < 0)
+ {
+#ifdef __MINGW32__
+ if (len > 0 && (s[0] == '/' || s[0] == '\\'))
+#else
+ if (len > 0 && s[0] == '/')
+#endif /* ndef __MINGW32__ */
+ return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1));
+ else
+ return scm_dot_string;
+ }
+ else
+ return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (i + 1));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_basename, "basename", 1, 1, 0,
+ (SCM filename, SCM suffix),
+ "Return the base name of the file name @var{filename}. The\n"
+ "base name is the file name without any directory components.\n"
+ "If @var{suffix} is privided, and is equal to the end of\n"
+ "@var{basename}, it is removed also.")
+#define FUNC_NAME s_scm_basename
+{
+ char *f, *s = 0;
+ int i, j, len, end;
+
+ SCM_VALIDATE_STRING (1,filename);
+ f = SCM_STRING_CHARS (filename);
+ len = SCM_STRING_LENGTH (filename);
+
+ if (SCM_UNBNDP (suffix))
+ j = -1;
+ else
+ {
+ SCM_VALIDATE_STRING (2, suffix);
+ s = SCM_STRING_CHARS (suffix);
+ j = SCM_STRING_LENGTH (suffix) - 1;
+ }
+ i = len - 1;
+#ifdef __MINGW32__
+ while (i >= 0 && (f[i] == '/' || f[i] == '\\')) --i;
+#else
+ while (i >= 0 && f[i] == '/') --i;
+#endif /* ndef __MINGW32__ */
+ end = i;
+ while (i >= 0 && j >= 0 && f[i] == s[j]) --i, --j;
+ if (j == -1)
+ end = i;
+#ifdef __MINGW32__
+ while (i >= 0 && (f[i] != '/' || f[i] != '\\')) --i;
+#else
+ while (i >= 0 && f[i] != '/') --i;
+#endif /* ndef __MINGW32__ */
+ if (i == end)
+ {
+#ifdef __MINGW32__
+ if (len > 0 && (f[0] == '/' || f[i] == '\\'))
+#else
+ if (len > 0 && f[0] == '/')
+#endif /* ndef __MINGW32__ */
+ return scm_substring (filename, SCM_INUM0, SCM_MAKINUM (1));
+ else
+ return scm_dot_string;
+ }
+ else
+ return scm_substring (filename, SCM_MAKINUM (i + 1), SCM_MAKINUM (end + 1));
+}
+#undef FUNC_NAME
+
+
+
+\f
+
+void
+scm_init_filesys ()
+{
+ scm_tc16_dir = scm_make_smob_type ("directory", 0);
+ scm_set_smob_free (scm_tc16_dir, scm_dir_free);
+ scm_set_smob_print (scm_tc16_dir, scm_dir_print);
+
+ scm_dot_string = scm_permanent_object (scm_makfrom0str ("."));
+
+#ifdef O_RDONLY
+ scm_c_define ("O_RDONLY", scm_long2num (O_RDONLY));
+#endif
+#ifdef O_WRONLY
+ scm_c_define ("O_WRONLY", scm_long2num (O_WRONLY));
+#endif
+#ifdef O_RDWR
+ scm_c_define ("O_RDWR", scm_long2num (O_RDWR));
+#endif
+#ifdef O_CREAT
+ scm_c_define ("O_CREAT", scm_long2num (O_CREAT));
+#endif
+#ifdef O_EXCL
+ scm_c_define ("O_EXCL", scm_long2num (O_EXCL));
+#endif
+#ifdef O_NOCTTY
+ scm_c_define ("O_NOCTTY", scm_long2num (O_NOCTTY));
+#endif
+#ifdef O_TRUNC
+ scm_c_define ("O_TRUNC", scm_long2num (O_TRUNC));
+#endif
+#ifdef O_APPEND
+ scm_c_define ("O_APPEND", scm_long2num (O_APPEND));
+#endif
+#ifdef O_NONBLOCK
+ scm_c_define ("O_NONBLOCK", scm_long2num (O_NONBLOCK));
+#endif
+#ifdef O_NDELAY
+ scm_c_define ("O_NDELAY", scm_long2num (O_NDELAY));
+#endif
+#ifdef O_SYNC
+ scm_c_define ("O_SYNC", scm_long2num (O_SYNC));
+#endif
+
+#ifdef F_DUPFD
+ scm_c_define ("F_DUPFD", scm_long2num (F_DUPFD));
+#endif
+#ifdef F_GETFD
+ scm_c_define ("F_GETFD", scm_long2num (F_GETFD));
+#endif
+#ifdef F_SETFD
+ scm_c_define ("F_SETFD", scm_long2num (F_SETFD));
+#endif
+#ifdef F_GETFL
+ scm_c_define ("F_GETFL", scm_long2num (F_GETFL));
+#endif
+#ifdef F_SETFL
+ scm_c_define ("F_SETFL", scm_long2num (F_SETFL));
+#endif
+#ifdef F_GETOWN
+ scm_c_define ("F_GETOWN", scm_long2num (F_GETOWN));
+#endif
+#ifdef F_SETOWN
+ scm_c_define ("F_SETOWN", scm_long2num (F_SETOWN));
+#endif
+#ifdef FD_CLOEXEC
+ scm_c_define ("FD_CLOEXEC", scm_long2num (FD_CLOEXEC));
+#endif
+
+#ifndef SCM_MAGIC_SNARFER
+#include "libguile/filesys.x"
+#endif
+}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/