diff options
Diffstat (limited to 'libguile/ioext.c')
-rw-r--r-- | libguile/ioext.c | 458 |
1 files changed, 0 insertions, 458 deletions
diff --git a/libguile/ioext.c b/libguile/ioext.c deleted file mode 100644 index 37b8bdc34..000000000 --- a/libguile/ioext.c +++ /dev/null @@ -1,458 +0,0 @@ -/* Copyright (C) 1995 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. - */ - - - -#include <stdio.h> -#include "fd.h" -#include "_scm.h" -#include "fports.h" - -#include "ioext.h" - -#ifdef HAVE_STRING_H -#include <string.h> -#endif -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - - -SCM_PROC (s_sys_ftell, "ftell", 1, 0, 0, scm_sys_ftell); - -SCM -scm_sys_ftell (port) - SCM port; -{ - long pos; - SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_sys_ftell); - SCM_SYSCALL (pos = ftell ((FILE *)SCM_STREAM (port))); - if (pos < 0) - scm_syserror (s_sys_ftell); - if (pos > 0 && SCM_CRDYP (port)) - pos--; - return scm_long2num (pos); -} - - - -SCM_PROC (s_sys_fseek, "fseek", 3, 0, 0, scm_sys_fseek); - -SCM -scm_sys_fseek (port, offset, whence) - SCM port; - SCM offset; - SCM whence; -{ - int rv; - long loff; - - SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_sys_fseek); - loff = scm_num2long (offset, (char *)SCM_ARG2, s_sys_fseek); - SCM_ASSERT (SCM_INUMP (whence) && (SCM_INUM (whence) < 3) && (SCM_INUM (whence) >= 0), - whence, SCM_ARG3, s_sys_fseek); - - SCM_CLRDY (port); /* Clear ungetted char */ - /* Values of whence are interned in scm_init_ioext. */ - rv = fseek ((FILE *)SCM_STREAM (port), loff, SCM_INUM (whence)); - if (rv != 0) - scm_syserror (s_sys_fseek); - return SCM_UNSPECIFIED; -} - - - -SCM_PROC (s_sys_freopen, "freopen", 3, 0, 0, scm_sys_freopen); - -SCM -scm_sys_freopen (filename, modes, port) - SCM filename; - SCM modes; - SCM port; -{ - FILE *f; - SCM_ASSERT (SCM_NIMP (filename) && SCM_STRINGP (filename), filename, SCM_ARG1, s_sys_freopen); - SCM_ASSERT (SCM_NIMP (modes) && SCM_STRINGP (modes), modes, SCM_ARG2, s_sys_freopen); - SCM_DEFER_INTS; - SCM_ASSERT (SCM_NIMP (port) && SCM_FPORTP (port), port, SCM_ARG3, s_sys_freopen); - SCM_SYSCALL (f = freopen (SCM_CHARS (filename), SCM_CHARS (modes), (FILE *)SCM_STREAM (port))); - if (!f) - { - SCM p; - p = port; - port = SCM_MAKINUM (errno); - SCM_SETAND_CAR (p, ~SCM_OPN); - scm_remove_from_port_table (p); - } - else - { - SCM_SETCAR (port, scm_tc16_fport | scm_mode_bits (SCM_CHARS (modes))); - SCM_SETSTREAM (port, (SCM)f); - SCM_SETCAR (port, scm_tc16_fport | scm_mode_bits (SCM_CHARS (modes))); - if (SCM_BUF0 & SCM_CAR (port)) - scm_setbuf0 (port); - } - SCM_ALLOW_INTS; - return port; -} - - - -SCM_PROC (s_sys_duplicate_port, "duplicate-port", 2, 0, 0, scm_sys_duplicate_port); - -SCM -scm_sys_duplicate_port (oldpt, modes) - SCM oldpt; - SCM modes; -{ - int oldfd; - int newfd; - FILE *f; - SCM newpt; - SCM_ASSERT (SCM_NIMP (oldpt) && SCM_OPPORTP (oldpt), oldpt, SCM_ARG1, s_sys_duplicate_port); - SCM_ASSERT (SCM_NIMP (modes) && SCM_STRINGP (modes), modes, SCM_ARG2, s_sys_duplicate_port); - SCM_NEWCELL (newpt); - SCM_DEFER_INTS; - oldfd = fileno ((FILE *)SCM_STREAM (oldpt)); - if (oldfd == -1) - scm_syserror (s_sys_duplicate_port); - SCM_SYSCALL (newfd = dup (oldfd)); - if (newfd == -1) - scm_syserror (s_sys_duplicate_port); - f = fdopen (newfd, SCM_CHARS (modes)); - if (!f) - { - SCM_SYSCALL (close (newfd)); - scm_syserror (s_sys_duplicate_port); - } - { - struct scm_port_table * pt; - pt = scm_add_to_port_table (newpt); - SCM_SETPTAB_ENTRY (newpt, pt); - SCM_SETCAR (newpt, scm_tc16_fport | scm_mode_bits (SCM_CHARS (modes))); - if (SCM_BUF0 & SCM_CAR (newpt)) - scm_setbuf0 (newpt); - SCM_SETSTREAM (newpt, (SCM)f); - SCM_PTAB_ENTRY (newpt)->file_name = SCM_PTAB_ENTRY (oldpt)->file_name; - } - SCM_ALLOW_INTS; - return newpt; -} - - - -SCM_PROC (s_sys_redirect_port, "redirect-port", 2, 0, 0, scm_sys_redirect_port); - -SCM -scm_sys_redirect_port (into_pt, from_pt) - SCM into_pt; - SCM from_pt; -{ - int ans, oldfd, newfd; - SCM_DEFER_INTS; - SCM_ASSERT (SCM_NIMP (into_pt) && SCM_OPPORTP (into_pt), into_pt, SCM_ARG1, s_sys_redirect_port); - SCM_ASSERT (SCM_NIMP (from_pt) && SCM_OPPORTP (from_pt), from_pt, SCM_ARG2, s_sys_redirect_port); - oldfd = fileno ((FILE *)SCM_STREAM (into_pt)); - if (oldfd == -1) - scm_syserror (s_sys_redirect_port); - newfd = fileno ((FILE *)SCM_STREAM (from_pt)); - if (newfd == -1) - scm_syserror (s_sys_redirect_port); - SCM_SYSCALL (ans = dup2 (oldfd, newfd)); - if (ans == -1) - scm_syserror (s_sys_redirect_port); - SCM_ALLOW_INTS; - return SCM_UNSPECIFIED; -} - -SCM_PROC (s_sys_fileno, "fileno", 1, 0, 0, scm_sys_fileno); - -SCM -scm_sys_fileno (port) - SCM port; -{ - int fd; - SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_sys_fileno); - fd = fileno ((FILE *)SCM_STREAM (port)); - if (fd == -1) - scm_syserror (s_sys_fileno); - return SCM_MAKINUM (fd); -} - -SCM_PROC (s_sys_isatty, "isatty?", 1, 0, 0, scm_sys_isatty_p); - -SCM -scm_sys_isatty_p (port) - SCM port; -{ - int rv; - SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_sys_isatty); - rv = fileno ((FILE *)SCM_STREAM (port)); - if (rv == -1) - scm_syserror (s_sys_isatty); - rv = isatty (rv); - return rv ? SCM_BOOL_T : SCM_BOOL_F; -} - - - -SCM_PROC (s_sys_fdopen, "fdopen", 2, 0, 0, scm_sys_fdopen); - -SCM -scm_sys_fdopen (fdes, modes) - SCM fdes; - SCM modes; -{ - FILE *f; - SCM port; - struct scm_port_table * pt; - - SCM_ASSERT (SCM_INUMP (fdes), fdes, SCM_ARG1, s_sys_fdopen); - SCM_ASSERT (SCM_NIMP (modes) && SCM_STRINGP (modes), modes, SCM_ARG2, s_sys_fdopen); - SCM_NEWCELL (port); - SCM_DEFER_INTS; - f = fdopen (SCM_INUM (fdes), SCM_CHARS (modes)); - if (f == NULL) - scm_syserror (s_sys_fdopen); - pt = scm_add_to_port_table (port); - SCM_SETPTAB_ENTRY (port, pt); - SCM_SETCAR (port, scm_tc16_fport | scm_mode_bits (SCM_CHARS (modes))); - if (SCM_BUF0 & SCM_CAR (port)) - scm_setbuf0 (port); - SCM_SETSTREAM (port, (SCM)f); - SCM_ALLOW_INTS; - return port; -} - - - -/* Move a port's underlying file descriptor to a given value. - * Returns #f if fdes is already the given value. - * #t if fdes moved. - * MOVE->FDES is implemented in Scheme and calls this primitive. - */ -SCM_PROC (s_sys_primitive_move_to_fdes, "primitive-move->fdes", 2, 0, 0, scm_sys_primitive_move_to_fdes); - -SCM -scm_sys_primitive_move_to_fdes (port, fd) - SCM port; - SCM fd; -{ - FILE *stream; - int old_fd; - int new_fd; - int rv; - - SCM_ASSERT (SCM_NIMP (port) && SCM_OPFPORTP (port), port, SCM_ARG1, s_sys_primitive_move_to_fdes); - SCM_ASSERT (SCM_INUMP (fd), fd, SCM_ARG2, s_sys_primitive_move_to_fdes); - SCM_DEFER_INTS; - stream = (FILE *)SCM_STREAM (port); - old_fd = fileno (stream); - new_fd = SCM_INUM (fd); - if (old_fd == new_fd) - { - SCM_ALLOW_INTS; - return SCM_BOOL_F; - } - scm_evict_ports (new_fd); - rv = dup2 (old_fd, new_fd); - if (rv == -1) - scm_syserror (s_sys_primitive_move_to_fdes); - scm_setfileno (stream, new_fd); - SCM_SYSCALL (close (old_fd)); - SCM_ALLOW_INTS; - return SCM_BOOL_T; -} - - -void -scm_setfileno (fs, fd) - FILE *fs; - int fd; -{ -#ifdef SET_FILE_FD_FIELD - SET_FILE_FD_FIELD(fs, fd); -#else - Configure could not guess the name of the correct field in a FILE *. - - This function needs to be ported to your system. - - SET_FILE_FD_FIELD should change the descriptor refered to by a stdio - stream, and nothing else. - - The way to port this file is to add cases to configure.in. Search - that file for "SET_FILE_FD_FIELD" and follow the examples there. -#endif -} - -/* Move ports with the specified file descriptor to new descriptors, - * reseting the revealed count to 0. - * Should be called with SCM_DEFER_INTS active. - */ - -void -scm_evict_ports (fd) - int fd; -{ - int i; - - for (i = 0; i < scm_port_table_size; i++) - { - if (SCM_FPORTP (scm_port_table[i]->port) - && fileno ((FILE *)SCM_STREAM (scm_port_table[i]->port)) == fd) - { - scm_setfileno ((FILE *)SCM_STREAM (scm_port_table[i]->port), dup (fd)); - scm_set_port_revealed_x (scm_port_table[i]->port, SCM_MAKINUM (0)); - } - } -} - -/* Return a list of ports using a given file descriptor. */ -SCM_PROC(s_fdes_to_ports, "fdes->ports", 1, 0, 0, scm_fdes_to_ports); - -SCM -scm_fdes_to_ports (fd) - SCM fd; -{ - SCM result = SCM_EOL; - int int_fd; - int i; - - SCM_ASSERT (SCM_INUMP (fd), fd, SCM_ARG1, s_fdes_to_ports); - int_fd = SCM_INUM (fd); - - SCM_DEFER_INTS; - for (i = 0; i < scm_port_table_size; i++) - { - if (SCM_FPORTP (scm_port_table[i]->port) - && fileno ((FILE *)SCM_STREAM (scm_port_table[i]->port)) == int_fd) - result = scm_cons (scm_port_table[i]->port, result); - } - SCM_ALLOW_INTS; - return result; -} - - -void -scm_init_ioext () -{ - /* fseek() symbols. */ - scm_sysintern ("SEEK_SET", SCM_MAKINUM (SEEK_SET)); - scm_sysintern ("SEEK_CUR", SCM_MAKINUM (SEEK_CUR)); - scm_sysintern ("SEEK_END", SCM_MAKINUM (SEEK_END)); - - /* File type/permission bits. */ -#ifdef S_IRUSR - scm_sysintern ("S_IRUSR", SCM_MAKINUM (S_IRUSR)); -#endif -#ifdef S_IWUSR - scm_sysintern ("S_IWUSR", SCM_MAKINUM (S_IWUSR)); -#endif -#ifdef S_IXUSR - scm_sysintern ("S_IXUSR", SCM_MAKINUM (S_IXUSR)); -#endif -#ifdef S_IRWXU - scm_sysintern ("S_IRWXU", SCM_MAKINUM (S_IRWXU)); -#endif - -#ifdef S_IRGRP - scm_sysintern ("S_IRGRP", SCM_MAKINUM (S_IRGRP)); -#endif -#ifdef S_IWGRP - scm_sysintern ("S_IWGRP", SCM_MAKINUM (S_IWGRP)); -#endif -#ifdef S_IXGRP - scm_sysintern ("S_IXGRP", SCM_MAKINUM (S_IXGRP)); -#endif -#ifdef S_IRWXG - scm_sysintern ("S_IRWXG", SCM_MAKINUM (S_IRWXG)); -#endif - -#ifdef S_IROTH - scm_sysintern ("S_IROTH", SCM_MAKINUM (S_IROTH)); -#endif -#ifdef S_IWOTH - scm_sysintern ("S_IWOTH", SCM_MAKINUM (S_IWOTH)); -#endif -#ifdef S_IXOTH - scm_sysintern ("S_IXOTH", SCM_MAKINUM (S_IXOTH)); -#endif -#ifdef S_IRWXO - scm_sysintern ("S_IRWXO", SCM_MAKINUM (S_IRWXO)); -#endif - -#ifdef S_ISUID - scm_sysintern ("S_ISUID", SCM_MAKINUM (S_ISUID)); -#endif -#ifdef S_ISGID - scm_sysintern ("S_ISGID", SCM_MAKINUM (S_ISGID)); -#endif -#ifdef S_ISVTX - scm_sysintern ("S_ISVTX", SCM_MAKINUM (S_ISVTX)); -#endif - -#ifdef S_IFMT - scm_sysintern ("S_IFMT", SCM_MAKINUM (S_IFMT)); -#endif -#ifdef S_IFDIR - scm_sysintern ("S_IFDIR", SCM_MAKINUM (S_IFDIR)); -#endif -#ifdef S_IFCHR - scm_sysintern ("S_IFCHR", SCM_MAKINUM (S_IFCHR)); -#endif -#ifdef S_IFBLK - scm_sysintern ("S_IFBLK", SCM_MAKINUM (S_IFBLK)); -#endif -#ifdef S_IFREG - scm_sysintern ("S_IFREG", SCM_MAKINUM (S_IFREG)); -#endif -#ifdef S_IFLNK - scm_sysintern ("S_IFLNK", SCM_MAKINUM (S_IFLNK)); -#endif -#ifdef S_IFSOCK - scm_sysintern ("S_IFSOCK", SCM_MAKINUM (S_IFSOCK)); -#endif -#ifdef S_IFIFO - scm_sysintern ("S_IFIFO", SCM_MAKINUM (S_IFIFO)); -#endif -#include "ioext.x" -} - |