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+/* assuan.h - Definitions for the Assuan IPC library -*- c -*-
+ * Copyright (C) 2001-2013 Free Software Foundation, Inc.
+ * Copyright (C) 2001-2021 g10 Code GmbH
+ *
+ * This file is part of Assuan.
+ *
+ * Assuan is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Assuan 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Do not edit. Generated from assuan.h.in by mkheader for linux-gnu.
+ */
+
+/* Compile time configuration:
+ *
+ * #define _ASSUAN_NO_SOCKET_WRAPPER
+ *
+ * Do not include the definitions for the socket wrapper feature.
+ */
+
+#ifndef ASSUAN_H
+#define ASSUAN_H
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#ifndef _ASSUAN_NO_SOCKET_WRAPPER
+#include <sys/socket.h>
+#endif /*!_ASSUAN_NO_SOCKET_WRAPPER*/
+
+typedef struct msghdr *assuan_msghdr_t;
+
+#include <gpg-error.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#if 0
+}
+#endif
+#endif
+
+/* The version of this header should match the one of the library. Do
+ * not use this symbol in your application; use assuan_check_version
+ * instead. */
+#define ASSUAN_VERSION "2.5.5"
+
+/* The version number of this header. It may be used to handle minor
+ * API incompatibilities. */
+#define ASSUAN_VERSION_NUMBER 0x020505
+
+
+/* Check for compiler features. */
+#if __GNUC__
+#define _ASSUAN_GCC_VERSION (__GNUC__ * 10000 \
+ + __GNUC_MINOR__ * 100 \
+ + __GNUC_PATCHLEVEL__)
+
+#if _ASSUAN_GCC_VERSION > 30100
+#define _ASSUAN_DEPRECATED __attribute__ ((__deprecated__))
+#endif
+#endif
+#ifndef _ASSUAN_DEPRECATED
+#define _ASSUAN_DEPRECATED
+#endif
+
+
+#define ASSUAN_LINELENGTH 1002 /* 1000 + [CR,]LF */
+
+struct assuan_context_s;
+typedef struct assuan_context_s *assuan_context_t;
+
+typedef int assuan_fd_t;
+#define ASSUAN_INVALID_FD (-1)
+#define ASSUAN_INVALID_PID ((pid_t) -1)
+static GPG_ERR_INLINE assuan_fd_t
+assuan_fd_from_posix_fd (int fd)
+{
+ return fd;
+}
+
+
+assuan_fd_t assuan_fdopen (int fd);
+
+/* Under Windows Assuan features an emulation of Unix domain sockets
+ based on a local TCP connections. To implement access permissions
+ based on file permissions a nonce is used which is expected by the
+ server as the first bytes received. On POSIX systems this is a
+ dummy structure. */
+struct assuan_sock_nonce_s
+{
+ size_t length;
+};
+typedef struct assuan_sock_nonce_s assuan_sock_nonce_t;
+
+
+/*
+ * Global interface.
+ */
+
+struct assuan_malloc_hooks
+{
+ void *(*malloc) (size_t cnt);
+ void *(*realloc) (void *ptr, size_t cnt);
+ void (*free) (void *ptr);
+};
+typedef struct assuan_malloc_hooks *assuan_malloc_hooks_t;
+
+/* Categories for log messages. */
+#define ASSUAN_LOG_INIT 1
+#define ASSUAN_LOG_CTX 2
+#define ASSUAN_LOG_ENGINE 3
+#define ASSUAN_LOG_DATA 4
+#define ASSUAN_LOG_SYSIO 5
+#define ASSUAN_LOG_CONTROL 8
+
+/* If MSG is NULL, return true/false depending on if this category is
+ * logged. This is used to probe before expensive log message
+ * generation (buffer dumps). */
+typedef int (*assuan_log_cb_t) (assuan_context_t ctx, void *hook,
+ unsigned int cat, const char *msg);
+
+/* Return or check the version number. */
+const char *assuan_check_version (const char *req_version);
+
+/* Set the default gpg error source. */
+void assuan_set_gpg_err_source (gpg_err_source_t errsource);
+
+/* Get the default gpg error source. */
+gpg_err_source_t assuan_get_gpg_err_source (void);
+
+
+/* Set the default malloc hooks. */
+void assuan_set_malloc_hooks (assuan_malloc_hooks_t malloc_hooks);
+
+/* Get the default malloc hooks. */
+assuan_malloc_hooks_t assuan_get_malloc_hooks (void);
+
+
+/* Set the default log callback handler. */
+void assuan_set_log_cb (assuan_log_cb_t log_cb, void *log_cb_data);
+
+/* Get the default log callback handler. */
+void assuan_get_log_cb (assuan_log_cb_t *log_cb, void **log_cb_data);
+
+
+/* Create a new Assuan context. The initial parameters are all needed
+ * in the creation of the context. */
+gpg_error_t assuan_new_ext (assuan_context_t *ctx, gpg_err_source_t errsource,
+ assuan_malloc_hooks_t malloc_hooks,
+ assuan_log_cb_t log_cb, void *log_cb_data);
+
+/* Create a new context with default arguments. */
+gpg_error_t assuan_new (assuan_context_t *ctx);
+
+/* Release all resources associated with the given context. */
+void assuan_release (assuan_context_t ctx);
+
+/* Release the memory at PTR using the allocation handler of the
+ * context CTX. This is a convenience function. */
+void assuan_free (assuan_context_t ctx, void *ptr);
+
+
+/* Set user-data in a context. */
+void assuan_set_pointer (assuan_context_t ctx, void *pointer);
+
+/* Get user-data in a context. */
+void *assuan_get_pointer (assuan_context_t ctx);
+
+
+/* Definitions of flags for assuan_set_flag(). */
+typedef unsigned int assuan_flag_t;
+
+/* When using a pipe server, by default Assuan will wait for the
+ * forked process to die in assuan_release. In certain cases this
+ * is not desirable. By setting this flag, the waitpid will be
+ * skipped and the caller is responsible to cleanup a forked
+ * process. */
+#define ASSUAN_NO_WAITPID 1
+
+/* This flag indicates whether Assuan logging is in confidential mode.
+ You can use assuan_{begin,end}_condidential to change the mode. */
+#define ASSUAN_CONFIDENTIAL 2
+
+/* This flag suppresses fix up of signal handlers for pipes. */
+#define ASSUAN_NO_FIXSIGNALS 3
+
+/* This flag changes assuan_transact to return comment lines via the
+ * status callback. The default is to skip comment lines. */
+#define ASSUAN_CONVEY_COMMENTS 4
+
+/* This flag disables logging for one context. */
+#define ASSUAN_NO_LOGGING 5
+
+/* This flag forces a connection close. */
+#define ASSUAN_FORCE_CLOSE 6
+
+
+/* For context CTX, set the flag FLAG to VALUE. Values for flags
+ * are usually 1 or 0 but certain flags might allow for other values;
+ * see the description of the type assuan_flag_t for details. */
+void assuan_set_flag (assuan_context_t ctx, assuan_flag_t flag, int value);
+
+/* Return the VALUE of FLAG in context CTX. */
+int assuan_get_flag (assuan_context_t ctx, assuan_flag_t flag);
+
+/* Same as assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 1). */
+void assuan_begin_confidential (assuan_context_t ctx);
+
+/* Same as assuan_set_flag (ctx, ASSUAN_CONFIDENTIAL, 0). */
+void assuan_end_confidential (assuan_context_t ctx);
+
+
+/* Direction values for assuan_set_io_monitor. */
+#define ASSUAN_IO_FROM_PEER 0
+#define ASSUAN_IO_TO_PEER 1
+
+/* Return flags of I/O monitor. */
+#define ASSUAN_IO_MONITOR_NOLOG 1
+#define ASSUAN_IO_MONITOR_IGNORE 2
+
+/* The IO monitor gets to see all I/O on the context, and can return
+ * ASSUAN_IO_MONITOR_* bits to control actions on it. */
+typedef unsigned int (*assuan_io_monitor_t) (assuan_context_t ctx, void *hook,
+ int inout, const char *line,
+ size_t linelen);
+
+/* Set the IO monitor function. */
+void assuan_set_io_monitor (assuan_context_t ctx,
+ assuan_io_monitor_t io_monitor, void *hook_data);
+
+/* The system hooks. See assuan_set_system_hooks et al. */
+#define ASSUAN_SYSTEM_HOOKS_VERSION 2
+#define ASSUAN_SPAWN_DETACHED 128
+struct assuan_system_hooks
+{
+ /* Always set to ASSUAN_SYTEM_HOOKS_VERSION. */
+ int version;
+
+ /* Sleep for the given number of microseconds. */
+ void (*usleep) (assuan_context_t ctx, unsigned int usec);
+
+ /* Create a pipe with an inheritable end. */
+ int (*pipe) (assuan_context_t ctx, assuan_fd_t fd[2], int inherit_idx);
+
+ /* Close the given file descriptor, created with _assuan_pipe or one
+ of the socket functions. */
+ int (*close) (assuan_context_t ctx, assuan_fd_t fd);
+
+
+ ssize_t (*read) (assuan_context_t ctx, assuan_fd_t fd, void *buffer,
+ size_t size);
+ ssize_t (*write) (assuan_context_t ctx, assuan_fd_t fd,
+ const void *buffer, size_t size);
+
+ int (*recvmsg) (assuan_context_t ctx, assuan_fd_t fd, assuan_msghdr_t msg,
+ int flags);
+ int (*sendmsg) (assuan_context_t ctx, assuan_fd_t fd,
+ const assuan_msghdr_t msg, int flags);
+
+ /* If NAME is NULL, don't exec, just fork. FD_CHILD_LIST is
+ modified to reflect the value of the FD in the peer process (on
+ Windows). */
+ int (*spawn) (assuan_context_t ctx, pid_t *r_pid, const char *name,
+ const char **argv,
+ assuan_fd_t fd_in, assuan_fd_t fd_out,
+ assuan_fd_t *fd_child_list,
+ void (*atfork) (void *opaque, int reserved),
+ void *atforkvalue, unsigned int flags);
+
+ /* If action is 0, like waitpid. If action is 1, just release the PID? */
+ pid_t (*waitpid) (assuan_context_t ctx, pid_t pid,
+ int action, int *status, int options);
+ int (*socketpair) (assuan_context_t ctx, int _namespace, int style,
+ int protocol, assuan_fd_t filedes[2]);
+ int (*socket) (assuan_context_t ctx, int _namespace, int style, int protocol);
+ int (*connect) (assuan_context_t ctx, int sock, struct sockaddr *addr, socklen_t length);
+};
+typedef struct assuan_system_hooks *assuan_system_hooks_t;
+
+
+
+/*
+ * Configuration of the default log handler.
+ */
+
+/* Set the prefix to be used at the start of a line emitted by assuan
+ * on the log stream. The default is the empty string. Note, that
+ * this function is not thread-safe and should in general be used
+ * right at startup. */
+void assuan_set_assuan_log_prefix (const char *text);
+
+/* Return a prefix to be used at the start of a line emitted by assuan
+ * on the log stream. The default implementation returns the empty
+ * string, i.e. "". */
+const char *assuan_get_assuan_log_prefix (void);
+
+/* Global default log stream. */
+void assuan_set_assuan_log_stream (FILE *fp);
+
+/* Set the per context log stream for the default log handler. */
+void assuan_set_log_stream (assuan_context_t ctx, FILE *fp);
+
+
+/* The type for assuan command handlers. */
+typedef gpg_error_t (*assuan_handler_t) (assuan_context_t, char *);
+
+/*-- assuan-handler.c --*/
+gpg_error_t assuan_register_command (assuan_context_t ctx,
+ const char *cmd_string,
+ assuan_handler_t handler,
+ const char *help_string);
+gpg_error_t assuan_register_pre_cmd_notify (assuan_context_t ctx,
+ gpg_error_t (*fnc)(assuan_context_t,
+ const char *cmd));
+
+gpg_error_t assuan_register_post_cmd_notify (assuan_context_t ctx,
+ void (*fnc)(assuan_context_t,
+ gpg_error_t));
+gpg_error_t assuan_register_bye_notify (assuan_context_t ctx,
+ assuan_handler_t handler);
+gpg_error_t assuan_register_reset_notify (assuan_context_t ctx,
+ assuan_handler_t handler);
+gpg_error_t assuan_register_cancel_notify (assuan_context_t ctx,
+ assuan_handler_t handler);
+gpg_error_t assuan_register_input_notify (assuan_context_t ctx,
+ assuan_handler_t handler);
+gpg_error_t assuan_register_output_notify (assuan_context_t ctx,
+ assuan_handler_t handler);
+
+gpg_error_t assuan_register_option_handler (assuan_context_t ctx,
+ gpg_error_t (*fnc)(assuan_context_t,
+ const char*,
+ const char*));
+
+gpg_error_t assuan_process (assuan_context_t ctx);
+gpg_error_t assuan_process_next (assuan_context_t ctx, int *done);
+gpg_error_t assuan_process_done (assuan_context_t ctx, gpg_error_t rc);
+int assuan_get_active_fds (assuan_context_t ctx, int what,
+ assuan_fd_t *fdarray, int fdarraysize);
+
+const char *assuan_get_command_name (assuan_context_t ctx);
+
+FILE *assuan_get_data_fp (assuan_context_t ctx);
+gpg_error_t assuan_set_okay_line (assuan_context_t ctx, const char *line);
+gpg_error_t assuan_write_status (assuan_context_t ctx,
+ const char *keyword, const char *text);
+
+/* Negotiate a file descriptor. If LINE contains "FD=N", returns N
+ * assuming a local file descriptor. If LINE contains "FD" reads a
+ * file descriptor via CTX and stores it in *RDF (the CTX must be
+ * capable of passing file descriptors). Under Windows the returned
+ * FD is a libc-type one. */
+gpg_error_t assuan_command_parse_fd (assuan_context_t ctx, char *line,
+ assuan_fd_t *rfd);
+
+
+/*-- assuan-listen.c --*/
+gpg_error_t assuan_set_hello_line (assuan_context_t ctx, const char *line);
+gpg_error_t assuan_accept (assuan_context_t ctx);
+assuan_fd_t assuan_get_input_fd (assuan_context_t ctx);
+assuan_fd_t assuan_get_output_fd (assuan_context_t ctx);
+gpg_error_t assuan_close_input_fd (assuan_context_t ctx);
+gpg_error_t assuan_close_output_fd (assuan_context_t ctx);
+
+
+/*-- assuan-pipe-server.c --*/
+gpg_error_t assuan_init_pipe_server (assuan_context_t ctx,
+ assuan_fd_t filedes[2]);
+
+/*-- assuan-socket-server.c --*/
+#define ASSUAN_SOCKET_SERVER_FDPASSING 1
+#define ASSUAN_SOCKET_SERVER_ACCEPTED 2
+gpg_error_t assuan_init_socket_server (assuan_context_t ctx,
+ assuan_fd_t listen_fd,
+ unsigned int flags);
+void assuan_set_sock_nonce (assuan_context_t ctx, assuan_sock_nonce_t *nonce);
+
+/*-- assuan-pipe-connect.c --*/
+#define ASSUAN_PIPE_CONNECT_FDPASSING 1
+#define ASSUAN_PIPE_CONNECT_DETACHED 128
+gpg_error_t assuan_pipe_connect (assuan_context_t ctx,
+ const char *name,
+ const char *argv[],
+ assuan_fd_t *fd_child_list,
+ void (*atfork) (void *, int),
+ void *atforkvalue,
+ unsigned int flags);
+
+/*-- assuan-socket-connect.c --*/
+#define ASSUAN_SOCKET_CONNECT_FDPASSING 1
+gpg_error_t assuan_socket_connect (assuan_context_t ctx, const char *name,
+ pid_t server_pid, unsigned int flags);
+
+/*-- assuan-socket-connect.c --*/
+gpg_error_t assuan_socket_connect_fd (assuan_context_t ctx, int fd,
+ unsigned int flags);
+
+/*-- context.c --*/
+pid_t assuan_get_pid (assuan_context_t ctx);
+struct _assuan_peercred
+{
+#ifdef _WIN32
+ /* Empty struct not allowed on some compilers, so, put this (not valid). */
+ pid_t pid;
+#else
+ pid_t pid;
+ uid_t uid;
+ gid_t gid;
+#endif
+};
+typedef struct _assuan_peercred *assuan_peercred_t;
+
+gpg_error_t assuan_get_peercred (assuan_context_t ctx,
+ assuan_peercred_t *peercred);
+
+
+
+/*
+ * Client interface.
+ */
+
+/* Client response codes. */
+#define ASSUAN_RESPONSE_ERROR 0
+#define ASSUAN_RESPONSE_OK 1
+#define ASSUAN_RESPONSE_DATA 2
+#define ASSUAN_RESPONSE_INQUIRE 3
+#define ASSUAN_RESPONSE_STATUS 4
+#define ASSUAN_RESPONSE_END 5
+#define ASSUAN_RESPONSE_COMMENT 6
+typedef int assuan_response_t;
+
+/* This already de-escapes data lines. */
+gpg_error_t assuan_client_read_response (assuan_context_t ctx,
+ char **line, int *linelen);
+
+gpg_error_t assuan_client_parse_response (assuan_context_t ctx,
+ char *line, int linelen,
+ assuan_response_t *response,
+ int *off);
+
+/*-- assuan-client.c --*/
+gpg_error_t
+assuan_transact (assuan_context_t ctx,
+ const char *command,
+ gpg_error_t (*data_cb)(void *, const void *, size_t),
+ void *data_cb_arg,
+ gpg_error_t (*inquire_cb)(void*, const char *),
+ void *inquire_cb_arg,
+ gpg_error_t (*status_cb)(void*, const char *),
+ void *status_cb_arg);
+
+
+/*-- assuan-inquire.c --*/
+gpg_error_t assuan_inquire (assuan_context_t ctx, const char *keyword,
+ unsigned char **r_buffer, size_t *r_length,
+ size_t maxlen);
+gpg_error_t assuan_inquire_ext (assuan_context_t ctx, const char *keyword,
+ size_t maxlen,
+ gpg_error_t (*cb) (void *cb_data,
+ gpg_error_t rc,
+ unsigned char *buf,
+ size_t buf_len),
+ void *cb_data);
+/*-- assuan-buffer.c --*/
+gpg_error_t assuan_read_line (assuan_context_t ctx,
+ char **line, size_t *linelen);
+int assuan_pending_line (assuan_context_t ctx);
+gpg_error_t assuan_write_line (assuan_context_t ctx, const char *line);
+gpg_error_t assuan_send_data (assuan_context_t ctx,
+ const void *buffer, size_t length);
+
+/* The file descriptor must be pending before assuan_receivefd is
+ * called. This means that assuan_sendfd should be called *before* the
+ * trigger is sent (normally via assuan_write_line ("INPUT FD")). */
+gpg_error_t assuan_sendfd (assuan_context_t ctx, assuan_fd_t fd);
+gpg_error_t assuan_receivefd (assuan_context_t ctx, assuan_fd_t *fd);
+
+
+/*-- assuan-util.c --*/
+gpg_error_t assuan_set_error (assuan_context_t ctx, gpg_error_t err,
+ const char *text);
+
+
+
+/*-- assuan-socket.c --*/
+
+/* This flag is used with assuan_sock_connect_byname to
+ * connect via SOCKS. */
+#define ASSUAN_SOCK_SOCKS 1
+
+/* This flag is used with assuan_sock_connect_byname to force a
+ connection via Tor even if the socket subsystem has not been
+ swicthed into Tor mode. This flags overrides ASSUAN_SOCK_SOCKS. */
+#define ASSUAN_SOCK_TOR 2
+
+/* These are socket wrapper functions to support an emulation of Unix
+ * domain sockets on Windows. */
+gpg_error_t assuan_sock_init (void);
+void assuan_sock_deinit (void);
+int assuan_sock_close (assuan_fd_t fd);
+assuan_fd_t assuan_sock_new (int domain, int type, int proto);
+int assuan_sock_set_flag (assuan_fd_t sockfd, const char *name, int value);
+int assuan_sock_get_flag (assuan_fd_t sockfd, const char *name, int *r_value);
+int assuan_sock_connect (assuan_fd_t sockfd,
+ struct sockaddr *addr, int addrlen);
+assuan_fd_t assuan_sock_connect_byname (const char *host, unsigned short port,
+ int reserved,
+ const char *credentials,
+ unsigned int flags);
+int assuan_sock_bind (assuan_fd_t sockfd, struct sockaddr *addr, int addrlen);
+int assuan_sock_set_sockaddr_un (const char *fname, struct sockaddr *addr,
+ int *r_redirected);
+int assuan_sock_get_nonce (struct sockaddr *addr, int addrlen,
+ assuan_sock_nonce_t *nonce);
+int assuan_sock_check_nonce (assuan_fd_t fd, assuan_sock_nonce_t *nonce);
+void assuan_sock_set_system_hooks (assuan_system_hooks_t system_hooks);
+
+
+/* Set the default system callbacks. This is irreversible. */
+void assuan_set_system_hooks (assuan_system_hooks_t system_hooks);
+
+/* Set the per context system callbacks. This is irreversible. */
+void assuan_ctx_set_system_hooks (assuan_context_t ctx,
+ assuan_system_hooks_t system_hooks);
+
+/* Change the system hooks for the socket interface.
+ * This is not thread-safe. */
+void assuan_sock_set_system_hooks (assuan_system_hooks_t system_hooks);
+
+void __assuan_usleep (assuan_context_t ctx, unsigned int usec);
+int __assuan_pipe (assuan_context_t ctx, assuan_fd_t fd[2], int inherit_idx);
+int __assuan_close (assuan_context_t ctx, assuan_fd_t fd);
+int __assuan_spawn (assuan_context_t ctx, pid_t *r_pid, const char *name,
+ const char **argv, assuan_fd_t fd_in, assuan_fd_t fd_out,
+ assuan_fd_t *fd_child_list,
+ void (*atfork) (void *opaque, int reserved),
+ void *atforkvalue, unsigned int flags);
+int __assuan_socketpair (assuan_context_t ctx, int _namespace, int style,
+ int protocol, assuan_fd_t filedes[2]);
+int __assuan_socket (assuan_context_t ctx, int _namespace, int style, int protocol);
+int __assuan_connect (assuan_context_t ctx, int sock, struct sockaddr *addr, socklen_t length);
+ssize_t __assuan_read (assuan_context_t ctx, assuan_fd_t fd, void *buffer, size_t size);
+ssize_t __assuan_write (assuan_context_t ctx, assuan_fd_t fd, const void *buffer, size_t size);
+int __assuan_recvmsg (assuan_context_t ctx, assuan_fd_t fd, assuan_msghdr_t msg, int flags);
+int __assuan_sendmsg (assuan_context_t ctx, assuan_fd_t fd, const assuan_msghdr_t msg, int flags);
+pid_t __assuan_waitpid (assuan_context_t ctx, pid_t pid, int nowait, int *status, int options);
+
+/* Standard system hooks for the legacy GNU Pth. */
+#define ASSUAN_SYSTEM_PTH_IMPL \
+ static void _assuan_pth_usleep (assuan_context_t ctx, unsigned int usec) \
+ { (void) ctx; pth_usleep (usec); } \
+ static ssize_t _assuan_pth_read (assuan_context_t ctx, assuan_fd_t fd, \
+ void *buffer, size_t size) \
+ { (void) ctx; return pth_read (fd, buffer, size); } \
+ static ssize_t _assuan_pth_write (assuan_context_t ctx, assuan_fd_t fd, \
+ const void *buffer, size_t size) \
+ { (void) ctx; return pth_write (fd, buffer, size); } \
+ static int _assuan_pth_recvmsg (assuan_context_t ctx, assuan_fd_t fd, \
+ assuan_msghdr_t msg, int flags) \
+ { \
+ /* Pth does not provide a recvmsg function. We implement it. */ \
+ int ret; \
+ int fdmode; \
+ \
+ (void) ctx; \
+ fdmode = pth_fdmode (fd, PTH_FDMODE_POLL); \
+ if (fdmode == PTH_FDMODE_ERROR) \
+ { \
+ errno = EBADF; \
+ return -1; \
+ } \
+ if (fdmode == PTH_FDMODE_BLOCK) \
+ { \
+ fd_set fds; \
+ \
+ FD_ZERO (&fds); \
+ FD_SET (fd, &fds); \
+ while ((ret = pth_select (fd + 1, &fds, NULL, NULL, NULL)) < 0 \
+ && errno == EINTR) \
+ ; \
+ if (ret < 0) \
+ return -1; \
+ } \
+ \
+ while ((ret = recvmsg (fd, msg, flags)) == -1 && errno == EINTR) \
+ ; \
+ return ret; \
+ } \
+ static int _assuan_pth_sendmsg (assuan_context_t ctx, assuan_fd_t fd, \
+ const assuan_msghdr_t msg, int flags) \
+ { \
+ /* Pth does not provide a sendmsg function. We implement it. */ \
+ int ret; \
+ int fdmode; \
+ \
+ (void) ctx; \
+ fdmode = pth_fdmode (fd, PTH_FDMODE_POLL); \
+ if (fdmode == PTH_FDMODE_ERROR) \
+ { \
+ errno = EBADF; \
+ return -1; \
+ } \
+ if (fdmode == PTH_FDMODE_BLOCK) \
+ { \
+ fd_set fds; \
+ \
+ FD_ZERO (&fds); \
+ FD_SET (fd, &fds); \
+ while ((ret = pth_select (fd + 1, NULL, &fds, NULL, NULL)) < 0 \
+ && errno == EINTR) \
+ ; \
+ if (ret < 0) \
+ return -1; \
+ } \
+ \
+ while ((ret = sendmsg (fd, msg, flags)) == -1 && errno == EINTR) \
+ ; \
+ return ret; \
+ } \
+ static pid_t _assuan_pth_waitpid (assuan_context_t ctx, pid_t pid, \
+ int nowait, int *status, int options) \
+ { (void) ctx; \
+ if (!nowait) return pth_waitpid (pid, status, options); \
+ else return 0; } \
+ \
+ struct assuan_system_hooks _assuan_system_pth = \
+ { ASSUAN_SYSTEM_HOOKS_VERSION, _assuan_pth_usleep, __assuan_pipe, \
+ __assuan_close, _assuan_pth_read, _assuan_pth_write, \
+ _assuan_pth_recvmsg, _assuan_pth_sendmsg, \
+ __assuan_spawn, _assuan_pth_waitpid, __assuan_socketpair, \
+ __assuan_socket, __assuan_connect }
+
+extern struct assuan_system_hooks _assuan_system_pth;
+#define ASSUAN_SYSTEM_PTH &_assuan_system_pth
+
+/* Standard system hooks for nPth. */
+#define ASSUAN_SYSTEM_NPTH_IMPL \
+ static void _assuan_npth_usleep (assuan_context_t ctx, unsigned int usec) \
+ { npth_unprotect(); \
+ __assuan_usleep (ctx, usec); \
+ npth_protect(); } \
+ static ssize_t _assuan_npth_read (assuan_context_t ctx, assuan_fd_t fd, \
+ void *buffer, size_t size) \
+ { ssize_t res; (void) ctx; npth_unprotect(); \
+ res = __assuan_read (ctx, fd, buffer, size); \
+ npth_protect(); return res; } \
+ static ssize_t _assuan_npth_write (assuan_context_t ctx, assuan_fd_t fd, \
+ const void *buffer, size_t size) \
+ { ssize_t res; (void) ctx; npth_unprotect(); \
+ res = __assuan_write (ctx, fd, buffer, size); \
+ npth_protect(); return res; } \
+ static int _assuan_npth_recvmsg (assuan_context_t ctx, assuan_fd_t fd, \
+ assuan_msghdr_t msg, int flags) \
+ { int res; (void) ctx; npth_unprotect(); \
+ res = __assuan_recvmsg (ctx, fd, msg, flags); \
+ npth_protect(); return res; } \
+ static int _assuan_npth_sendmsg (assuan_context_t ctx, assuan_fd_t fd, \
+ const assuan_msghdr_t msg, int flags) \
+ { int res; (void) ctx; npth_unprotect(); \
+ res = __assuan_sendmsg (ctx, fd, msg, flags); \
+ npth_protect(); return res; } \
+ static pid_t _assuan_npth_waitpid (assuan_context_t ctx, pid_t pid, \
+ int nowait, int *status, int options) \
+ { pid_t res; (void) ctx; npth_unprotect(); \
+ res = __assuan_waitpid (ctx, pid, nowait, status, options); \
+ npth_protect(); return res; } \
+ static int _assuan_npth_connect (assuan_context_t ctx, int sock, \
+ struct sockaddr *addr, socklen_t len)\
+ { int res; npth_unprotect(); \
+ res = __assuan_connect (ctx, sock, addr, len); \
+ npth_protect(); return res; } \
+ static int _assuan_npth_close (assuan_context_t ctx, assuan_fd_t fd) \
+ { int res; npth_unprotect(); \
+ res = __assuan_close (ctx, fd); \
+ npth_protect(); return res; } \
+ \
+ struct assuan_system_hooks _assuan_system_npth = \
+ { ASSUAN_SYSTEM_HOOKS_VERSION, _assuan_npth_usleep, __assuan_pipe, \
+ _assuan_npth_close, _assuan_npth_read, _assuan_npth_write, \
+ _assuan_npth_recvmsg, _assuan_npth_sendmsg, \
+ __assuan_spawn, _assuan_npth_waitpid, __assuan_socketpair, \
+ __assuan_socket, _assuan_npth_connect }
+
+extern struct assuan_system_hooks _assuan_system_npth;
+#define ASSUAN_SYSTEM_NPTH &_assuan_system_npth
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* ASSUAN_H */
+/*
+Local Variables:
+buffer-read-only: t
+End:
+*/
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