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68 lines
2.3 KiB
68 lines
2.3 KiB
/* priv-io.h - Interface to the private I/O functions.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef IO_H
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#define IO_H
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/* A single file descriptor passed to spawn. For child fds, dup_to
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specifies the fd it should become in the child. */
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struct spawn_fd_item_s
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{
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int fd;
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int dup_to;
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};
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struct io_select_fd_s
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{
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int fd;
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int for_read;
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int for_write;
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int signaled;
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int frozen;
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void *opaque;
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};
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/* These function are either defined in posix-io.c or w32-io.c. */
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void _gpgme_io_subsystem_init (void);
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int _gpgme_io_read (int fd, void *buffer, size_t count);
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int _gpgme_io_write (int fd, const void *buffer, size_t count);
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int _gpgme_io_pipe (int filedes[2], int inherit_idx);
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int _gpgme_io_close (int fd);
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int _gpgme_io_set_close_notify (int fd, void (*handler) (int, void *),
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void *value);
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int _gpgme_io_set_nonblocking (int fd);
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/* Spawn the executable PATH with ARGV as arguments, after forking
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close all fds in FD_PARENT_LIST in the tqparent and close or dup all
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fds in FD_CHILD_LIST in the child. */
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int _gpgme_io_spawn (const char *path, char **argv,
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struct spawn_fd_item_s *fd_child_list,
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struct spawn_fd_item_s *fd_tqparent_list);
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int _gpgme_io_select (struct io_select_fd_s *fds, size_t nfds, int nonblock);
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/* Write the printable version of FD to the buffer BUF of length
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BUFLEN. The printable version is the representation on the command
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line that the child process expects. */
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int _gpgme_io_fd2str (char *buf, int buflen, int fd);
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#endif /* IO_H */
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