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/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is librabbitmq.
*
* The Initial Developers of the Original Code are LShift Ltd, Cohesive
* Financial Technologies LLC, and Rabbit Technologies Ltd. Portions
* created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, Cohesive
* Financial Technologies LLC, or Rabbit Technologies Ltd are Copyright
* (C) 2007-2008 LShift Ltd, Cohesive Financial Technologies LLC, and
* Rabbit Technologies Ltd.
*
* Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift
* Ltd. Portions created by Cohesive Financial Technologies LLC are
* Copyright (C) 2007-2009 Cohesive Financial Technologies
* LLC. Portions created by Rabbit Technologies Ltd are Copyright (C)
* 2007-2009 Rabbit Technologies Ltd.
*
* Portions created by Tony Garnock-Jones are Copyright (C) 2009-2010
* LShift Ltd and Tony Garnock-Jones.
*
* All Rights Reserved.
*
* Contributor(s): ______________________________________.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License Version 2 or later (the "GPL"), in
* which case the provisions of the GPL are applicable instead of those
* above. If you wish to allow use of your version of this file only
* under the terms of the GPL, and not to allow others to use your
* version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the
* notice and other provisions required by the GPL. If you do not
* delete the provisions above, a recipient may use your version of
* this file under the terms of any one of the MPL or the GPL.
*
* ***** END LICENSE BLOCK *****
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <spawn.h>
#include <sys/wait.h>
#include <popt.h>
#include "common.h"
extern char **environ;
void die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
void die_errno(int err, const char *fmt, ...)
{
if (err == 0)
return;
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, ": %s\n", strerror(err));
exit(1);
}
char *amqp_server_exception_string(amqp_rpc_reply_t r)
{
int res;
char *s;
switch (r.reply.id) {
case AMQP_CONNECTION_CLOSE_METHOD: {
amqp_connection_close_t *m
= (amqp_connection_close_t *)r.reply.decoded;
res = asprintf(&s, "server connection error %d, message: %.*s",
m->reply_code,
(int)m->reply_text.len,
(char *)m->reply_text.bytes);
break;
}
case AMQP_CHANNEL_CLOSE_METHOD: {
amqp_channel_close_t *m
= (amqp_channel_close_t *)r.reply.decoded;
res = asprintf(&s, "server channel error %d, message: %.*s",
m->reply_code,
(int)m->reply_text.len,
(char *)m->reply_text.bytes);
break;
}
default:
res = asprintf(&s, "unknown server error, method id 0x%08X",
r.reply.id);
break;
}
return res >= 0 ? s : NULL;
}
char *amqp_rpc_reply_string(amqp_rpc_reply_t r)
{
const char *s;
switch (r.reply_type) {
case AMQP_RESPONSE_NORMAL:
s = "normal response";
break;
case AMQP_RESPONSE_NONE:
s = "missing RPC reply type";
break;
case AMQP_RESPONSE_LIBRARY_EXCEPTION:
if (r.library_errno)
s = strerror(r.library_errno);
else
s = "end of stream";
break;
case AMQP_RESPONSE_SERVER_EXCEPTION:
return amqp_server_exception_string(r);
default:
abort();
}
return strdup(s);
}
void die_rpc(amqp_rpc_reply_t r, const char *fmt, ...)
{
if (r.reply_type == AMQP_RESPONSE_NORMAL)
return;
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, ": %s\n", amqp_rpc_reply_string(r));
exit(1);
}
void set_cloexec(int fd)
{
int flags;
flags = fcntl(fd, F_GETFD);
if (flags == -1
|| fcntl(fd, F_SETFD, (long)(flags | FD_CLOEXEC)) == -1)
die_errno(errno, "set_cloexec");
}
static char *amqp_server = "localhost";
static char *amqp_vhost = "/";
static char *amqp_username = "guest";
static char *amqp_password = "guest";
const char *connect_options_title = "Connection options";
struct poptOption connect_options[] = {
{"server", 's', POPT_ARG_STRING, &amqp_server, 0,
"the AMQP server to connect to", "server"},
{"vhost", 0, POPT_ARG_STRING, &amqp_vhost, 0,
"the vhost to use when connecting", "vhost"},
{"username", 0, POPT_ARG_STRING, &amqp_username, 0,
"the username to login with", "username"},
{"password", 0, POPT_ARG_STRING, &amqp_password, 0,
"the password to login with", "password"},
{ NULL, 0, 0, NULL, 0 }
};
amqp_connection_state_t make_connection(void)
{
int s;
amqp_connection_state_t conn;
char *host = amqp_server;
int port = 0;
/* parse the server string into a hostname and a port */
char *colon = strchr(amqp_server, ':');
if (colon) {
char *port_end;
size_t host_len = colon - amqp_server;
host = malloc(host_len + 1);
memcpy(host, amqp_server, host_len);
host[host_len] = 0;
port = strtol(colon+1, &port_end, 10);
if (port < 0
|| port > 65535
|| port_end == colon+1
|| *port_end != 0)
die("bad server port number in %s", amqp_server);
}
s = amqp_open_socket(host, port ? port : 5672);
if (s < 0) {
if (s == -ENOENT)
die("unknown host %s", host);
else
die_errno(-s, "opening socket to %s", amqp_server);
}
set_cloexec(s);
conn = amqp_new_connection();
amqp_set_sockfd(conn, s);
die_rpc(amqp_login(conn, amqp_vhost, 0, 131072, 0,
AMQP_SASL_METHOD_PLAIN,
amqp_username, amqp_password),
"logging in to AMQP server");
if (!amqp_channel_open(conn, 1))
die_rpc(amqp_get_rpc_reply(conn), "opening channel");
return conn;
}
void close_connection(amqp_connection_state_t conn)
{
int s = amqp_get_sockfd(conn);
die_rpc(amqp_channel_close(conn, 1, AMQP_REPLY_SUCCESS),
"closing channel");
die_rpc(amqp_connection_close(conn, AMQP_REPLY_SUCCESS),
"closing connection");
amqp_destroy_connection(conn);
if (close(s) < 0)
die_errno(errno, "closing socket");
}
amqp_bytes_t read_all(int fd)
{
size_t space = 4096;
amqp_bytes_t bytes;
bytes.bytes = malloc(space);
bytes.len = 0;
for (;;) {
ssize_t res = read(fd, bytes.bytes+bytes.len, space-bytes.len);
if (res == 0)
break;
if (res < 0) {
if (errno == EINTR)
continue;
die_errno(errno, "reading");
}
bytes.len += res;
if (bytes.len == space) {
space *= 2;
bytes.bytes = realloc(bytes.bytes, space);
}
}
return bytes;
}
void write_all(int fd, amqp_bytes_t data)
{
while (data.len > 0) {
ssize_t res = write(fd, data.bytes, data.len);
if (res < 0)
die_errno(errno, "write");
data.len -= res;
data.bytes += res;
}
}
void copy_body(amqp_connection_state_t conn, int fd)
{
size_t body_remaining;
amqp_frame_t frame;
int res = amqp_simple_wait_frame(conn, &frame);
if (res < 0)
die_errno(-res, "waiting for header frame");
if (frame.frame_type != AMQP_FRAME_HEADER)
die("expected header, got frame type 0x%X",
frame.frame_type);
body_remaining = frame.payload.properties.body_size;
while (body_remaining) {
res = amqp_simple_wait_frame(conn, &frame);
if (res < 0)
die_errno(-res, "waiting for body frame");
if (frame.frame_type != AMQP_FRAME_BODY)
die("expected body, got frame type 0x%X",
frame.frame_type);
write_all(fd, frame.payload.body_fragment);
body_remaining -= frame.payload.body_fragment.len;
}
}
void pipeline(const char * const *argv, struct pipeline *pl)
{
posix_spawn_file_actions_t file_acts;
int pipefds[2];
if (pipe(pipefds))
die_errno(errno, "pipe");
die_errno(posix_spawn_file_actions_init(&file_acts),
"posix_spawn_file_actions_init");
die_errno(posix_spawn_file_actions_adddup2(&file_acts, pipefds[0], 0),
"posix_spawn_file_actions_adddup2");
die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[0]),
"posix_spawn_file_actions_addclose");
die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[1]),
"posix_spawn_file_actions_addclose");
die_errno(posix_spawnp(&pl->pid, argv[0], &file_acts, NULL,
(char * const *)argv, environ),
"posix_spawnp: %s", argv[0]);
die_errno(posix_spawn_file_actions_destroy(&file_acts),
"posix_spawn_file_actions_destroy");
if (close(pipefds[0]))
die_errno(errno, "close");
pl->infd = pipefds[1];
}
int finish_pipeline(struct pipeline *pl)
{
int status;
if (close(pl->infd))
die_errno(errno, "close");
if (waitpid(pl->pid, &status, 0) < 0)
die_errno(errno, "waitpid");
return WIFEXITED(status) && WEXITSTATUS(status) == 0;
}
poptContext process_options(int argc, const char **argv,
struct poptOption *options,
const char *help)
{
int c;
poptContext opts = poptGetContext(NULL, argc, argv, options, 0);
poptSetOtherOptionHelp(opts, help);
while ((c = poptGetNextOpt(opts)) >= 0) {
// no options require explicit handling
}
if (c < -1) {
fprintf(stderr, "%s: %s\n",
poptBadOption(opts, POPT_BADOPTION_NOALIAS),
poptStrerror(c));
poptPrintUsage(opts, stderr, 0);
exit(1);
}
return opts;
}
void process_all_options(int argc, const char **argv,
struct poptOption *options)
{
poptContext opts = process_options(argc, argv, options,
"[OPTIONS]...");
const char *opt = poptPeekArg(opts);
if (opt) {
fprintf(stderr, "unexpected operand: %s\n", opt);
poptPrintUsage(opts, stderr, 0);
exit(1);
}
poptFreeContext(opts);
}
amqp_bytes_t cstring_bytes(const char *str)
{
return str ? amqp_cstring_bytes(str) : AMQP_EMPTY_BYTES;
}
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