diff options
Diffstat (limited to '')
| -rw-r--r-- | assuan/assuan-defs.h | 172 |
1 files changed, 113 insertions, 59 deletions
diff --git a/assuan/assuan-defs.h b/assuan/assuan-defs.h index 2917fe85..7a96c0f8 100644 --- a/assuan/assuan-defs.h +++ b/assuan/assuan-defs.h @@ -1,5 +1,5 @@ /* assuan-defs.c - Internal definitions to Assuan - * Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc. + * Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc. * * This file is part of Assuan. * @@ -15,7 +15,8 @@ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + * USA. */ #ifndef ASSUAN_DEFS_H @@ -62,24 +63,30 @@ char * stpcpy (char *dest, const char *src); #define LINELENGTH ASSUAN_LINELENGTH + struct cmdtbl_s { const char *name; - int (*handler)(ASSUAN_CONTEXT, char *line); + int (*handler)(assuan_context_t, char *line); }; + +/* A structure to dispatch I/O functions. All these functions need to + return 0 on success and set ERRNO on failure. */ struct assuan_io { /* Routine to read from input_fd. */ - ssize_t (*readfnc) (ASSUAN_CONTEXT, void *, size_t); + ssize_t (*readfnc) (assuan_context_t, void *, size_t); /* Routine to write to output_fd. */ - ssize_t (*writefnc) (ASSUAN_CONTEXT, const void *, size_t); + ssize_t (*writefnc) (assuan_context_t, const void *, size_t); /* Send a file descriptor. */ - assuan_error_t (*sendfd) (ASSUAN_CONTEXT, int); + assuan_error_t (*sendfd) (assuan_context_t, int); /* Receive a file descriptor. */ - assuan_error_t (*receivefd) (ASSUAN_CONTEXT, int *); -}; + assuan_error_t (*receivefd) (assuan_context_t, int *); +}; + +/* The context we use with most functions. */ struct assuan_context_s { assuan_error_t err_no; @@ -88,18 +95,18 @@ struct assuan_context_s error codes. */ /* Context specific flags (cf. assuan_flag_t). */ - struct + struct { unsigned int no_waitpid:1; /* See ASSUAN_NO_WAITPID. */ - } flags; + } flags; int confidential; int is_server; /* Set if this is context belongs to a server */ int in_inquire; char *hello_line; char *okay_line; /* See assuan_set_okay_line() */ - - void *user_pointer; /* For assuan_get_pointer and assuan-set_pointer (). */ + + void *user_pointer; /* For assuan_get_pointer and assuan_set_pointer (). */ FILE *log_fp; @@ -109,7 +116,7 @@ struct assuan_context_s char line[LINELENGTH]; int linelen; /* w/o CR, LF - might not be the same as strlen(line) due to embedded nuls. However a nul - is always written at this pos */ + is always written at this pos. */ struct { char line[LINELENGTH]; int linelen ; @@ -122,49 +129,55 @@ struct assuan_context_s struct { FILE *fp; char line[LINELENGTH]; - int linelen; + int linelen; int error; - } data; + } data; } outbound; int pipe_mode; /* We are in pipe mode, i.e. we can handle just one - connection and must terminate then */ - pid_t pid; /* The the pid of the peer. */ + connection and must terminate then. */ + pid_t pid; /* The pid of the peer. */ int listen_fd; /* The fd we are listening on (used by socket servers) */ int connected_fd; /* helper */ + struct { + int valid; /* Whether this structure has valid information. */ + pid_t pid; /* The pid of the peer. */ + uid_t uid; /* The uid of the peer. */ + gid_t gid; /* The gid of the peer. */ + } peercred; /* Used for Unix domain sockets. */ struct sockaddr_un myaddr; struct sockaddr_un serveraddr; - /* When reading from datagram sockets, we must read an entire - message at a time. This means that we have to do our own - buffering to be able to get the semantics of read. */ - void *domainbuffer; - /* Offset of start of buffer. */ - int domainbufferoffset; - /* Bytes buffered. */ - int domainbuffersize; - /* Memory allocated. */ - int domainbufferallocated; - - int *pendingfds; - int pendingfdscount; - - void (*deinit_handler)(ASSUAN_CONTEXT); - int (*accept_handler)(ASSUAN_CONTEXT); - int (*finish_handler)(ASSUAN_CONTEXT); + + /* Structure used for unix domain socket buffering. FIXME: We don't + use datagrams anymore thus we could get away with a simpler + buffering approach. */ + struct { + void *buffer; /* Malloced buffer. */ + int bufferallocated; /* Memory allocated. */ + int bufferoffset; /* Offset of start of buffer. */ + int buffersize; /* Bytes buffered. */ + + int pendingfds[5]; /* Array to save received descriptors. */ + int pendingfdscount; /* Number of received descriptors. */ + } uds; + + void (*deinit_handler)(assuan_context_t); + int (*accept_handler)(assuan_context_t); + int (*finish_handler)(assuan_context_t); struct cmdtbl_s *cmdtbl; size_t cmdtbl_used; /* used entries */ size_t cmdtbl_size; /* allocated size of table */ - void (*bye_notify_fnc)(ASSUAN_CONTEXT); - void (*reset_notify_fnc)(ASSUAN_CONTEXT); - void (*cancel_notify_fnc)(ASSUAN_CONTEXT); - int (*option_handler_fnc)(ASSUAN_CONTEXT,const char*, const char*); - void (*input_notify_fnc)(ASSUAN_CONTEXT, const char *); - void (*output_notify_fnc)(ASSUAN_CONTEXT, const char *); + void (*bye_notify_fnc)(assuan_context_t); + void (*reset_notify_fnc)(assuan_context_t); + void (*cancel_notify_fnc)(assuan_context_t); + int (*option_handler_fnc)(assuan_context_t,const char*, const char*); + void (*input_notify_fnc)(assuan_context_t, const char *); + void (*output_notify_fnc)(assuan_context_t, const char *); int input_fd; /* set by INPUT command */ int output_fd; /* set by OUTPUT command */ @@ -174,29 +187,45 @@ struct assuan_context_s }; /*-- assuan-pipe-server.c --*/ -int _assuan_new_context (ASSUAN_CONTEXT *r_ctx); -void _assuan_release_context (ASSUAN_CONTEXT ctx); +int _assuan_new_context (assuan_context_t *r_ctx); +void _assuan_release_context (assuan_context_t ctx); + +/*-- assuan-uds.c --*/ +void _assuan_uds_close_fds (assuan_context_t ctx); +void _assuan_uds_deinit (assuan_context_t ctx); +void _assuan_init_uds_io (assuan_context_t ctx); -/*-- assuan-domain-connect.c --*/ -/* Make a connection to the Unix domain socket NAME and return a new - Assuan context in CTX. SERVER_PID is currently not used but may - become handy in the future. */ -assuan_error_t _assuan_domain_init (ASSUAN_CONTEXT *r_ctx, - int rendezvousfd, - pid_t peer); /*-- assuan-handler.c --*/ -int _assuan_register_std_commands (ASSUAN_CONTEXT ctx); +int _assuan_register_std_commands (assuan_context_t ctx); /*-- assuan-buffer.c --*/ -int _assuan_read_line (ASSUAN_CONTEXT ctx); +assuan_error_t _assuan_read_line (assuan_context_t ctx); int _assuan_cookie_write_data (void *cookie, const char *buffer, size_t size); int _assuan_cookie_write_flush (void *cookie); assuan_error_t _assuan_write_line (assuan_context_t ctx, const char *prefix, const char *line, size_t len); /*-- assuan-client.c --*/ -assuan_error_t _assuan_read_from_server (ASSUAN_CONTEXT ctx, int *okay, int *off); +assuan_error_t _assuan_read_from_server (assuan_context_t ctx, + int *okay, int *off); + +/*-- assuan-error.c --*/ + + +/* Map error codes as used in this implementaion to the libgpg-error + codes. */ +assuan_error_t _assuan_error (int oldcode); + +/* Extrac the erro code from A. This works for both the old and the + new style error codes. This needs to be whenever an error code is + compared. */ +#define err_code(a) ((a) & 0x00ffffff) + +/* Check whether A is the erro code for EOF. We allow forold and new + style EOF error codes here. */ +#define err_is_eof(a) ((a) == (-1) || err_code (a) == 16383) + /*-- assuan-util.c --*/ @@ -210,10 +239,8 @@ void _assuan_free (void *p); #define xtryrealloc(a,b) _assuan_realloc((a),(b)) #define xfree(a) _assuan_free ((a)) -#define set_error(c,e,t) assuan_set_error ((c), ASSUAN_ ## e, (t)) - -void _assuan_log_print_buffer (FILE *fp, const void *buffer, size_t length); -void _assuan_log_sanitized_string (const char *string); +#define set_error(c,e,t) \ + assuan_set_error ((c), _assuan_error (ASSUAN_ ## e), (t)) #ifdef HAVE_W32_SYSTEM const char *_assuan_w32_strerror (int ec); @@ -229,11 +256,18 @@ void _assuan_log_printf (const char *format, ...) __attribute__ ((format (printf,1,2))) #endif ; +void _assuan_log_print_buffer (FILE *fp, const void *buffer, size_t length); +void _assuan_log_sanitized_string (const char *string); + /*-- assuan-io.c --*/ -ssize_t _assuan_simple_read (ASSUAN_CONTEXT ctx, void *buffer, size_t size); -ssize_t _assuan_simple_write (ASSUAN_CONTEXT ctx, const void *buffer, +pid_t _assuan_waitpid (pid_t pid, int *status, int options); + +ssize_t _assuan_simple_read (assuan_context_t ctx, void *buffer, size_t size); +ssize_t _assuan_simple_write (assuan_context_t ctx, const void *buffer, size_t size); +ssize_t _assuan_simple_sendmsg (assuan_context_t ctx, struct msghdr *msg); +ssize_t _assuan_simple_recvmsg (assuan_context_t ctx, struct msghdr *msg); /*-- assuan-socket.c --*/ int _assuan_close (int fd); @@ -251,5 +285,25 @@ FILE *_assuan_funopen(void *cookie, #define funopen(a,r,w,s,c) _assuan_funopen ((a), (r), (w), (s), (c)) #endif /*HAVE_FOPENCOOKIE*/ -#endif /*ASSUAN_DEFS_H*/ +/* Prototypes for replacement functions. */ +#ifndef HAVE_MEMRCHR +void *memrchr (const void *block, int c, size_t size); +#endif +#ifndef HAVE_STPCPY +char *stpcpy (char *dest, const char *src); +#endif +#ifndef HAVE_SETENV +#define setenv _assuan_setenv +#define unsetenv _assuan_unsetenv +#define clearenv _assuan_clearenv +int setenv (const char *name, const char *value, int replace); +#endif +#ifndef HAVE_PUTC_UNLOCKED +int putc_unlocked (int c, FILE *stream) +#endif +#define DIM(v) (sizeof(v)/sizeof((v)[0])) +#define DIMof(type,member) DIM(((type *)0)->member) + + +#endif /*ASSUAN_DEFS_H*/ |