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tdepim/libkdenetwork/libgpgme-copy/assuan/assuan.h

566 lines
22 KiB

/* assuan.c - Definitions for the Assuan IPC library
* Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifndef ASSUAN_H
#define ASSUAN_H
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
/* To use this file with libraries the following macros are useful:
#define _ASSUAN_EXT_SYM_PREFIX _foo_
This prefixes all external symbols with "_foo_".
#define _ASSUAN_ONLY_GPG_ERRORS
If this is defined all old-style Assuan error codes are made
inactive as well as other dereacted stuff.
The follwing macros are used internally in the implementation of
libassuan:
#define _ASSUAN_NO_PTH
This avoids inclusion of special GNU Pth hacks.
#define _ASSUAN_NO_FIXED_SIGNALS
This disables changing of certain signal handler; i.e. SIGPIPE.
#define _ASSUAN_USE_DOUBLE_FORK
Use a double fork approach when connecting to a server through
a pipe.
*/
/**** Begin GPGME specific modifications. ******/
#define _ASSUAN_EXT_SYM_PREFIX _gpgme_
#define _ASSUAN_NO_PTH
#define _ASSUAN_NO_FIXED_SIGNALS
#define _ASSUAN_USE_DOUBLE_FORK
#ifdef _ASSUAN_IN_GPGME_BUILD_ASSUAN
int _gpgme_io_read (int fd, void *buffer, size_t count);
int _gpgme_io_write (int fd, const void *buffer, size_t count);
ssize_t _gpgme_ath_waitpid (pid_t pid, int *status, int options);
#ifdef HAVE_W32_SYSTEM
int _gpgme_ath_accept (int s, void *addr, int *length_ptr);
#else /*!HAVE_W32_SYSTEM*/
struct sockaddr;
struct msghdr;
ssize_t _gpgme_ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
struct timeval *timeout);
int _gpgme_ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr);
int _gpgme_ath_connect (int s, struct sockaddr *addr, socklen_t length);
int _gpgme_ath_sendmsg (int s, const struct msghdr *msg, int flags);
int _gpgme_ath_recvmsg (int s, struct msghdr *msg, int flags);
int _gpgme_io_sendmsg (int sock, const struct msghdr *msg, int flags);
int _gpgme_io_recvmsg (int sock, struct msghdr *msg, int flags);
#endif /*!HAVE_W32_SYSTEM*/
#define read _gpgme_io_read
#define write _gpgme_io_write
#define waitpid _gpgme_ath_waitpid
#define select _gpgme_ath_select
#define accept _gpgme_ath_accept
#define connect _gpgme_ath_connect
#define sendmsg _gpgme_io_sendmsg
#define recvmsg _gpgme_io_recvmsg
#endif /*_ASSUAN_IN_GPGME_BUILD_ASSUAN*/
/**** End GPGME specific modifications. ******/
#ifdef _ASSUAN_EXT_SYM_PREFIX
#define _ASSUAN_PREFIX1(x,y) x ## y
#define _ASSUAN_PREFIX2(x,y) _ASSUAN_PREFIX1(x,y)
#define _ASSUAN_PREFIX(x) _ASSUAN_PREFIX2(_ASSUAN_EXT_SYM_PREFIX,x)
#define assuan_ _ASSUAN_PREFIX(assuan_)
#define assuan_register_command _ASSUAN_PREFIX(assuan_register_command)
#define assuan_register_post_cmd_notify \
_ASSUAN_PREFIX(assuan_register_post_cmd_notify)
#define assuan_register_bye_notify _ASSUAN_PREFIX(assuan_register_bye_notify)
#define assuan_register_reset_notify \
_ASSUAN_PREFIX(assuan_register_reset_notify)
#define assuan_register_cancel_notify \
_ASSUAN_PREFIX(assuan_register_cancel_notify)
#define assuan_register_input_notify \
_ASSUAN_PREFIX(assuan_register_input_notify)
#define assuan_register_output_notify \
_ASSUAN_PREFIX(assuan_register_output_notify)
#define assuan_register_option_handler \
_ASSUAN_PREFIX(assuan_register_option_handler)
#define assuan_process _ASSUAN_PREFIX(assuan_process)
#define assuan_process_next _ASSUAN_PREFIX(assuan_process_next)
#define assuan_get_active_fds _ASSUAN_PREFIX(assuan_get_active_fds)
#define assuan_get_data_fp _ASSUAN_PREFIX(assuan_get_data_fp)
#define assuan_set_okay_line _ASSUAN_PREFIX(assuan_set_okay_line)
#define assuan_write_status _ASSUAN_PREFIX(assuan_write_status)
#define assuan_command_parse_fd _ASSUAN_PREFIX(assuan_command_parse_fd)
#define assuan_set_hello_line _ASSUAN_PREFIX(assuan_set_hello_line)
#define assuan_accept _ASSUAN_PREFIX(assuan_accept)
#define assuan_get_input_fd _ASSUAN_PREFIX(assuan_get_input_fd)
#define assuan_get_output_fd _ASSUAN_PREFIX(assuan_get_output_fd)
#define assuan_close_input_fd _ASSUAN_PREFIX(assuan_close_input_fd)
#define assuan_close_output_fd _ASSUAN_PREFIX(assuan_close_output_fd)
#define assuan_init_pipe_server _ASSUAN_PREFIX(assuan_init_pipe_server)
#define assuan_deinit_server _ASSUAN_PREFIX(assuan_deinit_server)
#define assuan_init_socket_server _ASSUAN_PREFIX(assuan_init_socket_server)
#define assuan_init_connected_socket_server \
_ASSUAN_PREFIX(assuan_init_connected_socket_server)
#define assuan_init_socket_server_ext \
_ASSUAN_PREFIX(assuan_init_socket_server_ext)
#define assuan_pipe_connect _ASSUAN_PREFIX(assuan_pipe_connect)
#define assuan_pipe_connect_ext _ASSUAN_PREFIX(assuan_pipe_connect_ext)
#define assuan_socket_connect _ASSUAN_PREFIX(assuan_socket_connect)
#define assuan_socket_connect_ext _ASSUAN_PREFIX(assuan_socket_connect_ext)
#define assuan_disconnect _ASSUAN_PREFIX(assuan_disconnect)
#define assuan_get_pid _ASSUAN_PREFIX(assuan_get_pid)
#define assuan_get_peercred _ASSUAN_PREFIX(assuan_get_peercred)
#define assuan_transact _ASSUAN_PREFIX(assuan_transact)
#define assuan_inquire _ASSUAN_PREFIX(assuan_inquire)
#define assuan_read_line _ASSUAN_PREFIX(assuan_read_line)
#define assuan_pending_line _ASSUAN_PREFIX(assuan_pending_line)
#define assuan_write_line _ASSUAN_PREFIX(assuan_write_line)
#define assuan_send_data _ASSUAN_PREFIX(assuan_send_data)
#define assuan_sendfd _ASSUAN_PREFIX(assuan_sendfd)
#define assuan_receivefd _ASSUAN_PREFIX(assuan_receivefd)
#define assuan_set_malloc_hooks _ASSUAN_PREFIX(assuan_set_malloc_hooks)
#define assuan_set_log_stream _ASSUAN_PREFIX(assuan_set_log_stream)
#define assuan_set_error _ASSUAN_PREFIX(assuan_set_error)
#define assuan_set_pointer _ASSUAN_PREFIX(assuan_set_pointer)
#define assuan_get_pointer _ASSUAN_PREFIX(assuan_get_pointer)
#define assuan_set_io_monitor _ASSUAN_PREFIX(assuan_set_io_monitor)
#define assuan_begin_confidential _ASSUAN_PREFIX(assuan_begin_confidential)
#define assuan_end_confidential _ASSUAN_PREFIX(assuan_end_confidential)
#define assuan_strerror _ASSUAN_PREFIX(assuan_strerror)
#define assuan_set_assuan_err_source \
_ASSUAN_PREFIX(assuan_set_assuan_err_source)
#define assuan_set_assuan_log_stream \
_ASSUAN_PREFIX(assuan_set_assuan_log_stream)
#define assuan_get_assuan_log_stream \
_ASSUAN_PREFIX(assuan_get_assuan_log_stream)
#define assuan_get_assuan_log_prefix \
_ASSUAN_PREFIX(assuan_get_assuan_log_prefix)
#define assuan_set_flag _ASSUAN_PREFIX(assuan_set_flag)
#define assuan_get_flag _ASSUAN_PREFIX(assuan_get_flag)
/* And now the internal functions, argh... */
#define _assuan_read_line _ASSUAN_PREFIX(_assuan_read_line)
#define _assuan_cookie_write_data _ASSUAN_PREFIX(_assuan_cookie_write_data)
#define _assuan_cookie_write_flush _ASSUAN_PREFIX(_assuan_cookie_write_flush)
#define _assuan_read_from_server _ASSUAN_PREFIX(_assuan_read_from_server)
#define _assuan_domain_init _ASSUAN_PREFIX(_assuan_domain_init)
#define _assuan_register_std_commands \
_ASSUAN_PREFIX(_assuan_register_std_commands)
#define _assuan_simple_read _ASSUAN_PREFIX(_assuan_simple_read)
#define _assuan_simple_write _ASSUAN_PREFIX(_assuan_simple_write)
#define _assuan_simple_read _ASSUAN_PREFIX(_assuan_simple_read)
#define _assuan_simple_write _ASSUAN_PREFIX(_assuan_simple_write)
#define _assuan_new_context _ASSUAN_PREFIX(_assuan_new_context)
#define _assuan_release_context _ASSUAN_PREFIX(_assuan_release_context)
#define _assuan_malloc _ASSUAN_PREFIX(_assuan_malloc)
#define _assuan_realloc _ASSUAN_PREFIX(_assuan_realloc)
#define _assuan_calloc _ASSUAN_PREFIX(_assuan_calloc)
#define _assuan_free _ASSUAN_PREFIX(_assuan_free)
#define _assuan_log_print_buffer _ASSUAN_PREFIX(_assuan_log_print_buffer)
#define _assuan_log_sanitized_string \
_ASSUAN_PREFIX(_assuan_log_sanitized_string)
#define _assuan_log_printf _ASSUAN_PREFIX(_assuan_log_printf)
#define _assuan_set_default_log_stream \
_ASSUAN_PREFIX(_assuan_set_default_log_stream)
#define _assuan_w32_strerror _ASSUAN_PREFIX(_assuan_w32_strerror)
#define _assuan_write_line _ASSUAN_PREFIX(_assuan_write_line)
#define _assuan_close _ASSUAN_PREFIX(_assuan_close)
#define _assuan_sock_new _ASSUAN_PREFIX(_assuan_sock_new)
#define _assuan_sock_bind _ASSUAN_PREFIX(_assuan_sock_bind)
#define _assuan_sock_connect _ASSUAN_PREFIX(_assuan_sock_connect)
#endif /*_ASSUAN_EXT_SYM_PREFIX*/
#ifdef __cplusplus
extern "C"
{
#if 0
}
#endif
#endif
/* 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
/* Assuan error codes. These are only used by old applications or
those applications which won't make use of libgpg-error. */
#ifndef _ASSUAN_ONLY_GPG_ERRORS
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_No_Error 0
#endif
#define ASSUAN_General_Error 1
#define ASSUAN_Out_Of_Core 2
#define ASSUAN_Invalid_Value 3
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Timeout 4
#endif
#define ASSUAN_Read_Error 5
#define ASSUAN_Write_Error 6
#define ASSUAN_Problem_Starting_Server 7
#define ASSUAN_Not_A_Server 8
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Not_A_Client 9
#endif
#define ASSUAN_Nested_Commands 10
#define ASSUAN_Invalid_Response 11
#define ASSUAN_No_Data_Callback 12
#define ASSUAN_No_Inquire_Callback 13
#define ASSUAN_Connect_Failed 14
#define ASSUAN_Accept_Failed 15
/* Error codes above 99 are meant as status codes */
#define ASSUAN_Not_Implemented 100
#define ASSUAN_Server_Fault 101
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Invalid_Command 102
#endif
#define ASSUAN_Unknown_Command 103
#define ASSUAN_Syntax_Error 104
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Parameter_Error 105
#endif
#define ASSUAN_Parameter_Conflict 106
#define ASSUAN_Line_Too_Long 107
#define ASSUAN_Line_Not_Terminated 108
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_No_Input 109
#define ASSUAN_No_Output 110
#endif
#define ASSUAN_Canceled 111
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Unsupported_Algorithm 112
#define ASSUAN_Server_Resource_Problem 113
#define ASSUAN_Server_IO_Error 114
#define ASSUAN_Server_Bug 115
#define ASSUAN_No_Data_Available 116
#define ASSUAN_Invalid_Data 117
#endif
#define ASSUAN_Unexpected_Command 118
#define ASSUAN_Too_Much_Data 119
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Inquire_Unknown 120
#define ASSUAN_Inquire_Error 121
#define ASSUAN_Invalid_Option 122
#define ASSUAN_Invalid_Index 123
#define ASSUAN_Unexpected_Status 124
#define ASSUAN_Unexpected_Data 125
#define ASSUAN_Invalid_Status 126
#define ASSUAN_Locale_Problem 127
#endif
#define ASSUAN_Not_Confirmed 128
/* Warning: Don't use the Error codes, below they are deprecated. */
#ifndef _ASSUAN_IN_LIBASSUAN
#define ASSUAN_Bad_Certificate 201
#define ASSUAN_Bad_Certificate_Chain 202
#define ASSUAN_Missing_Certificate 203
#define ASSUAN_Bad_Signature 204
#define ASSUAN_No_Agent 205
#define ASSUAN_Agent_Error 206
#define ASSUAN_No_Public_Key 207
#define ASSUAN_No_Secret_Key 208
#define ASSUAN_Invalid_Name 209
#define ASSUAN_Cert_Revoked 301
#define ASSUAN_No_CRL_For_Cert 302
#define ASSUAN_CRL_Too_Old 303
#define ASSUAN_Not_Trusted 304
#define ASSUAN_Card_Error 401
#define ASSUAN_Invalid_Card 402
#define ASSUAN_No_PKCS15_App 403
#define ASSUAN_Card_Not_Present 404
#define ASSUAN_Invalid_Id 405
/* Error codes in the range 1000 to 9999 may be used by applications
at their own discretion. */
#define ASSUAN_USER_ERROR_FIRST 1000
#define ASSUAN_USER_ERROR_LAST 9999
#endif
typedef int assuan_error_t;
typedef assuan_error_t AssuanError _ASSUAN_DEPRECATED;
/* This is a list of pre-registered ASSUAN commands */
/* Note, these command IDs are now deprectated and solely exists for
compatibility reasons. */
typedef enum
{
ASSUAN_CMD_NOP = 0,
ASSUAN_CMD_CANCEL, /* cancel the current request */
ASSUAN_CMD_BYE,
ASSUAN_CMD_AUTH,
ASSUAN_CMD_RESET,
ASSUAN_CMD_OPTION,
ASSUAN_CMD_DATA,
ASSUAN_CMD_END,
ASSUAN_CMD_INPUT,
ASSUAN_CMD_OUTPUT,
ASSUAN_CMD_USER = 256 /* Other commands should be used with this offset*/
} AssuanCommand;
#else /*!_ASSUAN_ONLY_GPG_ERRORS*/
typedef int assuan_error_t;
#endif /*!_ASSUAN_ONLY_GPG_ERRORS*/
/* Definitions of flags for assuan_set_flag(). */
typedef enum
{
/* When using a pipe server, by default Assuan will wait for the
forked process to die in assuan_disconnect. 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. */
ASSUAN_NO_WAITPID = 1
}
assuan_flag_t;
#define ASSUAN_LINELENGTH 1002 /* 1000 + [CR,]LF */
struct assuan_context_s;
typedef struct assuan_context_s *assuan_context_t;
#ifndef _ASSUAN_ONLY_GPG_ERRORS
typedef struct assuan_context_s *ASSUAN_CONTEXT _ASSUAN_DEPRECATED;
#endif /*_ASSUAN_ONLY_GPG_ERRORS*/
/*-- assuan-handler.c --*/
int assuan_register_command (assuan_context_t ctx,
const char *cmd_string,
int (*handler)(assuan_context_t, char *));
int assuan_register_post_cmd_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t, int));
int assuan_register_bye_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t));
int assuan_register_reset_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t));
int assuan_register_cancel_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t));
int assuan_register_input_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t, const char *));
int assuan_register_output_notify (assuan_context_t ctx,
void (*fnc)(assuan_context_t, const char *));
int assuan_register_option_handler (assuan_context_t ctx,
int (*fnc)(assuan_context_t,
const char*, const char*));
int assuan_process (assuan_context_t ctx);
int assuan_process_next (assuan_context_t ctx);
int assuan_get_active_fds (assuan_context_t ctx, int what,
int *fdarray, int fdarraysize);
FILE *assuan_get_data_fp (assuan_context_t ctx);
assuan_error_t assuan_set_okay_line (assuan_context_t ctx, const char *line);
assuan_error_t assuan_write_status (assuan_context_t ctx,
const char *keyword, const char *text);
/* Negotiate a file descriptor. If LINE tqcontains "FD=N", returns N
assuming a local file descriptor. If LINE tqcontains "FD" reads a
file descriptor via CTX and stores it in *RDF (the CTX must be
capable of passing file descriptors). */
assuan_error_t assuan_command_parse_fd (assuan_context_t ctx, char *line,
int *rfd);
/*-- assuan-listen.c --*/
assuan_error_t assuan_set_hello_line (assuan_context_t ctx, const char *line);
assuan_error_t assuan_accept (assuan_context_t ctx);
int assuan_get_input_fd (assuan_context_t ctx);
int assuan_get_output_fd (assuan_context_t ctx);
assuan_error_t assuan_close_input_fd (assuan_context_t ctx);
assuan_error_t assuan_close_output_fd (assuan_context_t ctx);
/*-- assuan-pipe-server.c --*/
int assuan_init_pipe_server (assuan_context_t *r_ctx, int filedes[2]);
void assuan_deinit_server (assuan_context_t ctx);
/*-- assuan-socket-server.c --*/
int assuan_init_socket_server (assuan_context_t *r_ctx, int listen_fd);
int assuan_init_connected_socket_server (assuan_context_t *r_ctx,
int fd) _ASSUAN_DEPRECATED;
int assuan_init_socket_server_ext (assuan_context_t *r_ctx, int fd,
unsigned int flags);
/*-- assuan-pipe-connect.c --*/
assuan_error_t assuan_pipe_connect (assuan_context_t *ctx,
const char *name,
const char *const argv[],
int *fd_child_list);
assuan_error_t assuan_pipe_connect2 (assuan_context_t *ctx,
const char *name,
const char *const argv[],
int *fd_child_list,
void (*atfork) (void*, int),
void *atforkvalue) _ASSUAN_DEPRECATED;
assuan_error_t assuan_pipe_connect_ext (assuan_context_t *ctx,
const char *name,
const char *const argv[],
int *fd_child_list,
void (*atfork) (void *, int),
void *atforkvalue,
unsigned int flags);
/*-- assuan-socket-connect.c --*/
assuan_error_t assuan_socket_connect (assuan_context_t *ctx,
const char *name,
pid_t server_pid);
assuan_error_t assuan_socket_connect_ext (assuan_context_t *ctx,
const char *name,
pid_t server_pid,
unsigned int flags);
/*-- assuan-connect.c --*/
void assuan_disconnect (assuan_context_t ctx);
pid_t assuan_get_pid (assuan_context_t ctx);
assuan_error_t assuan_get_peercred (assuan_context_t ctx,
pid_t *pid, uid_t *uid, gid_t *gid);
/*-- assuan-client.c --*/
assuan_error_t
assuan_transact (assuan_context_t ctx,
const char *command,
int (*data_cb)(void *, const void *, size_t),
void *data_cb_arg,
int (*inquire_cb)(void*, const char *),
void *inquire_cb_arg,
int (*status_cb)(void*, const char *),
void *status_cb_arg);
/*-- assuan-inquire.c --*/
assuan_error_t assuan_inquire (assuan_context_t ctx, const char *keyword,
unsigned char **r_buffer, size_t *r_length,
size_t maxlen);
/*-- assuan-buffer.c --*/
assuan_error_t assuan_read_line (assuan_context_t ctx,
char **line, size_t *linelen);
int assuan_pending_line (assuan_context_t ctx);
assuan_error_t assuan_write_line (assuan_context_t ctx, const char *line );
assuan_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")). */
assuan_error_t assuan_sendfd (assuan_context_t ctx, int fd);
assuan_error_t assuan_receivefd (assuan_context_t ctx, int *fd);
/*-- assuan-util.c --*/
void assuan_set_malloc_hooks ( void *(*new_alloc_func)(size_t n),
void *(*new_realloc_func)(void *p, size_t n),
void (*new_free_func)(void*) );
void assuan_set_log_stream (assuan_context_t ctx, FILE *fp);
int assuan_set_error (assuan_context_t ctx, int err, const char *text);
void assuan_set_pointer (assuan_context_t ctx, void *pointer);
void *assuan_get_pointer (assuan_context_t ctx);
void assuan_begin_confidential (assuan_context_t ctx);
void assuan_end_confidential (assuan_context_t ctx);
void assuan_set_io_monitor (assuan_context_t ctx,
unsigned int (*monitor)(assuan_context_t ctx,
int direction,
const char *line,
size_t linelen));
/* 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);
/*-- assuan-errors.c --*/
#ifndef _ASSUAN_ONLY_GPG_ERRORS
/* Return a string describing the assuan error. The use of this
function is deprecated; it is better to call
assuan_set_assuan_err_source once and then make use libgpg-error. */
const char *assuan_strerror (assuan_error_t err);
#endif /*_ASSUAN_ONLY_GPG_ERRORS*/
/* Enable gpg-error style error codes. ERRSOURCE is one of gpg-error
sources. Note, that this function is not thread-safe and should be
used right at startup. Switching back to the old style mode is not
supported. */
void assuan_set_assuan_err_source (int errsource);
/*-- assuan-logging.c --*/
/* Set the stream to which assuan should log message not associated
with a context. By default, this is stderr. The default value
will be changed when the first log stream is associated with a
context. Note, that this function is not thread-safe and should
in general be used right at startup. */
extern void assuan_set_assuan_log_stream (FILE *fp);
/* Return the stream which is currently being using for global logging. */
extern FILE *assuan_get_assuan_log_stream (void);
/* 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);
#ifdef __cplusplus
}
#endif
#endif /* ASSUAN_H */