diff options
Diffstat (limited to 'libtdenetwork/libgpgme-copy/assuan/assuan-pipe-server.c')
| -rw-r--r-- | libtdenetwork/libgpgme-copy/assuan/assuan-pipe-server.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/libtdenetwork/libgpgme-copy/assuan/assuan-pipe-server.c b/libtdenetwork/libgpgme-copy/assuan/assuan-pipe-server.c new file mode 100644 index 000000000..f88516143 --- /dev/null +++ b/libtdenetwork/libgpgme-copy/assuan/assuan-pipe-server.c @@ -0,0 +1,187 @@ +/* assuan-pipe-server.c - Assuan server working over a pipe + * Copyright (C) 2001, 2002 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. + */ + +#include <config.h> +#include <stdlib.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#ifdef HAVE_W32_SYSTEM +#include <windows.h> +#include <fcntl.h> +#endif + +#include "assuan-defs.h" + + +static void +deinit_pipe_server (assuan_context_t ctx) +{ + /* nothing to do for this simple server */ +} + +static int +accept_connection (assuan_context_t ctx) +{ + /* This is a NOP for a pipe server */ + return 0; +} + +static int +finish_connection (assuan_context_t ctx) +{ + /* This is a NOP for a pipe server */ + return 0; +} + +/* Create a new context. Note that the handlers are set up for a pipe + server/client - this way we don't need extra dummy functions */ +int +_assuan_new_context (assuan_context_t *r_ctx) +{ + static struct assuan_io io = { _assuan_simple_read, + _assuan_simple_write, + 0, 0 }; + + assuan_context_t ctx; + int rc; + + *r_ctx = NULL; + ctx = xtrycalloc (1, sizeof *ctx); + if (!ctx) + return _assuan_error (ASSUAN_Out_Of_Core); + ctx->input_fd = -1; + ctx->output_fd = -1; + + ctx->inbound.fd = -1; + ctx->outbound.fd = -1; + ctx->io = &io; + + ctx->listen_fd = -1; + /* Use the pipe server handler as a default. */ + ctx->deinit_handler = deinit_pipe_server; + ctx->accept_handler = accept_connection; + ctx->finish_handler = finish_connection; + + rc = _assuan_register_std_commands (ctx); + if (rc) + xfree (ctx); + else + *r_ctx = ctx; + return rc; +} + + +/* Returns true if atoi(S) denotes a valid socket. */ +static int +is_valid_socket (const char *s) +{ + struct stat buf; + + if ( fstat (atoi (s), &buf ) ) + return 0; + return S_ISSOCK (buf.st_mode); +} + + +int +assuan_init_pipe_server (assuan_context_t *r_ctx, int filedes[2]) +{ + int rc; + + rc = _assuan_new_context (r_ctx); + if (!rc) + { + assuan_context_t ctx = *r_ctx; + const char *s; + unsigned long ul; + + ctx->is_server = 1; +#ifdef HAVE_W32_SYSTEM + /* MS Windows has so many different types of handle that one + needs to tranlsate them at many place forth and back. Also + make sure that the fiel descriptos are in binary mode. */ + setmode (filedes[0], O_BINARY); + setmode (filedes[1], O_BINARY); + ctx->inbound.fd = _get_osfhandle (filedes[0]); + ctx->outbound.fd = _get_osfhandle (filedes[1]); +#else + s = getenv ("_assuan_connection_fd"); + if (s && *s && is_valid_socket (s) ) + { + /* Well, we are called with an bi-directional file + descriptor. Prepare for using sendmsg/recvmsg. In this + case we ignore the passed file descriptors. */ + ctx->inbound.fd = ctx->outbound.fd = atoi (s); + _assuan_init_uds_io (ctx); + ctx->deinit_handler = _assuan_uds_deinit; + } + else if (filedes && filedes[0] != -1 && filedes[1] != -1 ) + { + /* Standard pipe server. */ + ctx->inbound.fd = filedes[0]; + ctx->outbound.fd = filedes[1]; + } + else + { + _assuan_release_context (*r_ctx); + *r_ctx = NULL; + return ASSUAN_Problem_Starting_Server; + } +#endif + ctx->pipe_mode = 1; + + s = getenv ("_assuan_pipe_connect_pid"); + if (s && (ul=strtoul (s, NULL, 10)) && ul) + ctx->pid = (pid_t)ul; + else + ctx->pid = (pid_t)-1; + + } + return rc; +} + + +void +_assuan_release_context (assuan_context_t ctx) +{ + if (ctx) + { + xfree (ctx->hello_line); + xfree (ctx->okay_line); + xfree (ctx->cmdtbl); + xfree (ctx); + } +} + +void +assuan_deinit_server (assuan_context_t ctx) +{ + if (ctx) + { + /* We use this function pointer to avoid linking other server + when not needed but still allow for a generic deinit function. */ + ctx->deinit_handler (ctx); + ctx->deinit_handler = NULL; + _assuan_release_context (ctx); + } +} |