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| -rw-r--r-- | tests/fdpassing-socket.c | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/tests/fdpassing-socket.c b/tests/fdpassing-socket.c new file mode 100644 index 0000000..251c609 --- /dev/null +++ b/tests/fdpassing-socket.c @@ -0,0 +1,357 @@ +/* fdpassing - Check the file descriptor passing. + Copyright (C) 2006, 2009 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 3 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/>. + */ +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <sys/stat.h> +#if HAVE_W32_SYSTEM +# define WIN32_LEAN_AND_MEAN +# include <windows.h> +# include <wincrypt.h> +# include <io.h> +#endif +#include <unistd.h> +#include <errno.h> + +#include "../src/assuan.h" +#include "common.h" + + +/* + + S E R V E R + +*/ + +static gpg_error_t +cmd_echo (assuan_context_t ctx, char *line) +{ + assuan_fd_t fd; + int c; + estream_t fp; + int nbytes; + + log_info ("got ECHO command (%s)\n", line); + + fd = assuan_get_input_fd (ctx); + if (fd == ASSUAN_INVALID_FD) + return gpg_error (GPG_ERR_ASS_NO_INPUT); + fp = gpgrt_fdopen ((int)fd, "r"); + if (!fp) + { + log_error ("fdopen failed on input fd: %s\n", strerror (errno)); + return gpg_error (GPG_ERR_ASS_GENERAL); + } + nbytes = 0; + while ( (c = gpgrt_fgetc (fp)) != -1) + { + putc (c, stderr); + nbytes++; + } + fflush (stderr); + log_info ("done printing %d bytes to stderr\n", nbytes); + + gpgrt_fclose (fp); + return 0; +} + +static gpg_error_t +register_commands (assuan_context_t ctx) +{ + static struct + { + const char *name; + gpg_error_t (*handler) (assuan_context_t, char *line); + } table[] = + { + { "ECHO", cmd_echo }, + { "INPUT", NULL }, + { "OUTPUT", NULL }, + { NULL, NULL } + }; + int i; + gpg_error_t rc; + + for (i=0; table[i].name; i++) + { + rc = assuan_register_command (ctx, table[i].name, table[i].handler, NULL); + if (rc) + return rc; + } + return 0; +} + + +#define SUN_LEN(ptr) ((size_t) (( \ + + strlen ((ptr)->sun_path)) + +static assuan_sock_nonce_t socket_nonce; + +static void +server (const char *socketname) +{ + int rc; + assuan_context_t ctx; + assuan_fd_t fd; + struct sockaddr_un unaddr_struct; + struct sockaddr *addr; + socklen_t len; + + log_info ("server started\n"); + + fd = assuan_sock_new (AF_UNIX, SOCK_STREAM, 0); + if (fd == ASSUAN_INVALID_FD) + log_fatal ("assuan_sock_new failed\n"); + + addr = (struct sockaddr *)&unaddr_struct; + rc = assuan_sock_set_sockaddr_un (socketname, addr, NULL); + if (rc) + { + assuan_sock_close (fd); + log_fatal ("assuan_sock_set_sockaddr_un failed: %s\n", gpg_strerror (rc)); + } + + len = offsetof (struct sockaddr_un, sun_path) + + strlen (unaddr_struct.sun_path); + rc = assuan_sock_bind (fd, addr, len); + if (rc) + { + assuan_sock_close (fd); + log_fatal ("assuan_sock_bind failed: %s\n", gpg_strerror (rc)); + } + + rc = assuan_sock_get_nonce (addr, len, &socket_nonce); + if (rc) + { + assuan_sock_close (fd); + log_fatal ("assuan_sock_get_nonce failed: %s\n", gpg_strerror (rc)); + } + + rc = listen (HANDLE2SOCKET (fd), 5); + if (rc < 0) + { + assuan_sock_close (fd); + log_fatal ("listen failed: %s\n", + gpg_strerror (gpg_error_from_syserror ())); + } + + rc = assuan_new (&ctx); + if (rc) + log_fatal ("assuan_new failed: %s\n", gpg_strerror (rc)); + + rc = assuan_init_socket_server (ctx, fd, 0); + if (rc) + log_fatal ("assuan_init_socket_server failed: %s\n", gpg_strerror (rc)); + + assuan_set_sock_nonce (ctx, &socket_nonce); + + rc = register_commands (ctx); + if (rc) + log_fatal ("register_commands failed: %s\n", gpg_strerror(rc)); + + assuan_set_log_stream (ctx, stderr); + + for (;;) + { + rc = assuan_accept (ctx); + if (rc) + { + if (rc != -1) + log_error ("assuan_accept failed: %s\n", gpg_strerror (rc)); + break; + } + + log_info ("client connected. Client's pid is %ld\n", + (long)assuan_get_pid (ctx)); + + rc = assuan_process (ctx); + if (rc) + log_error ("assuan_process failed: %s\n", gpg_strerror (rc)); + } + + assuan_release (ctx); +} + + + + +/* + + C L I E N T + +*/ + + +/* Client main. If true is returned, a disconnect has not been done. */ +static int +client (assuan_context_t ctx, const char *fname) +{ + int rc; + estream_t fp; + int i; + + log_info ("client started. Servers's pid is %ld\n", + (long)assuan_get_pid (ctx)); + + for (i=0; i < 6; i++) + { + fp = gpgrt_fopen (fname, "r"); + if (!fp) + { + log_error ("failed to open `%s': %s\n", fname, + strerror (errno)); + return -1; + } + + rc = assuan_sendfd (ctx, (assuan_fd_t)gpgrt_fileno (fp)); + if (rc) + { + gpgrt_fclose (fp); + log_error ("assuan_sendfd failed: %s\n", gpg_strerror (rc)); + return -1; + } + gpgrt_fclose (fp); + + rc = assuan_transact (ctx, "INPUT FD", NULL, NULL, NULL, NULL, + NULL, NULL); + if (rc) + { + log_error ("sending INPUT FD failed: %s\n", gpg_strerror (rc)); + return -1; + } + + rc = assuan_transact (ctx, "ECHO", NULL, NULL, NULL, NULL, NULL, NULL); + if (rc) + { + log_error ("sending ECHO failed: %s\n", gpg_strerror (rc)); + return -1; + } + } + + /* Give us some time to check with lsof that all descriptors are closed. */ +/* sleep (10); */ + + assuan_release (ctx); + return 0; +} + + + + +/* + + M A I N + +*/ +int +main (int argc, char **argv) +{ + int last_argc = -1; + assuan_context_t ctx; + gpg_error_t err; + int is_server = 0; + char *fname = prepend_srcdir ("motd"); + const char *socketname = NULL; + + if (argc) + { + log_set_prefix (*argv); + argc--; argv++; + } + while (argc && last_argc != argc ) + { + last_argc = argc; + if (!strcmp (*argv, "--help")) + { + puts ( +"usage: ./fdpassing [options]\n" +"\n" +"Options:\n" +" --verbose Show what is going on\n" +" --socketname Specify the socket path.\n" +); + exit (0); + } + if (!strcmp (*argv, "--verbose")) + { + verbose = 1; + argc--; argv++; + } + else if (!strcmp (*argv, "--debug")) + { + verbose = debug = 1; + argc--; argv++; + } + else if (!strcmp (*argv, "--server")) + { + is_server = 1; + argc--; argv++; + } + else if (!strcmp (*argv, "--socketname")) + { + argc--; argv++; + if (argc) + { + socketname = *argv++; + argc--; + } + } + } + + + assuan_sock_init (); + assuan_set_assuan_log_prefix (log_prefix); + + if (is_server) + { + server (socketname); + log_info ("server finished\n"); + } + else + { + err = assuan_new (&ctx); + if (err) + log_fatal ("assuan_new failed: %s\n", gpg_strerror (err)); + + err = assuan_socket_connect (ctx, socketname, 0, 0); + if (err) + { + log_error ("assuan_socket_connect failed: %s\n", gpg_strerror (err)); + assuan_release (ctx); + errorcount++; + } + else + { + if (client (ctx, fname)) + { + log_info ("waiting for server to terminate...\n"); + assuan_release (ctx); + } + log_info ("client finished\n"); + } + } + + xfree (fname); + return errorcount ? 1 : 0; +} |