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/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
LibGTop is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
LibGTop 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include "daemon.h"
#include <glibtop/error.h>
void
handle_slave_connection (int input, int output)
{
glibtop *server G_GNUC_UNUSED = glibtop_global_server;
const void *ptr G_GNUC_UNUSED;
unsigned short max_len G_GNUC_UNUSED;
pid_t pid G_GNUC_UNUSED;
gint64 proc_which G_GNUC_UNUSED;
gint64 proc_arg G_GNUC_UNUSED;
glibtop_response _resp, *resp = &_resp;
glibtop_command _cmnd, *cmnd = &_cmnd;
char parameter [BUFSIZ];
glibtop_send_version (glibtop_global_server, output);
while (do_read (input, cmnd, sizeof (glibtop_command))) {
glibtop_debug ("Slave %d received command "
"%llu from client.", getpid (), cmnd->command);
if (cmnd->data_size >= BUFSIZ)
glibtop_error ("Client sent %llu bytes, "
"but buffer is %lu",
cmnd->size, (unsigned long)BUFSIZ);
memset (resp, 0, sizeof (glibtop_response));
memset (parameter, 0, sizeof (parameter));
if (cmnd->data_size) {
glibtop_debug ("Client has %llu bytes of data.",
cmnd->data_size);
do_read (input, parameter, cmnd->data_size);
} else if (cmnd->size) {
memcpy (parameter, cmnd->parameter, cmnd->size);
}
switch (cmnd->command) {
case GLIBTOP_CMND_QUIT:
do_output (output, resp, 0, 0, NULL);
return;
#if GLIBTOP_SUID_PROCLIST
case GLIBTOP_CMND_PROCLIST:
memcpy(&proc_which, parameter, sizeof proc_which);
memcpy(&proc_arg, parameter + sizeof proc_which, sizeof proc_arg);
ptr = glibtop_get_proclist_p
(server, &resp->u.data.proclist,
proc_which, proc_arg);
do_output (output, resp, _offset_data (proclist),
resp->u.data.proclist.total, ptr);
g_free (ptr);
break;
#endif
#if GLIBTOP_SUID_PROC_ARGS
case GLIBTOP_CMND_PROC_ARGS:
memcpy (&pid, parameter, sizeof (pid_t));
memcpy (&max_len, parameter + sizeof (pid_t),
sizeof (max_len));
ptr = glibtop_get_proc_args_p (server,
&resp->u.data.proc_args,
pid, max_len);
do_output (output, resp, _offset_data (proc_args),
ptr ? resp->u.data.proc_args.size+1 : 0,
ptr);
g_free (ptr);
break;
#endif
#if GLIBTOP_SUID_PROC_MAP
case GLIBTOP_CMND_PROC_MAP:
memcpy (&pid, parameter, sizeof (pid_t));
ptr = glibtop_get_proc_map_p (server,
&resp->u.data.proc_map,
pid);
do_output (output, resp, _offset_data (proc_map),
resp->u.data.proc_map.total, ptr);
g_free (ptr);
break;
#endif
default:
handle_slave_command (cmnd, resp, parameter);
do_output (output, resp, resp->offset, 0, NULL);
break;
}
}
}
void
handle_slave_command (glibtop_command *cmnd, glibtop_response *resp,
const void *parameter)
{
glibtop *server = glibtop_global_server;
unsigned device G_GNUC_UNUSED;
pid_t pid G_GNUC_UNUSED;
switch (cmnd->command) {
case GLIBTOP_CMND_SYSDEPS:
memcpy (&resp->u.sysdeps, &server->sysdeps,
sizeof (glibtop_sysdeps));
resp->u.sysdeps.features = glibtop_server_features;
resp->u.sysdeps.flags = glibtop_server_features |
(1L << GLIBTOP_SYSDEPS_FEATURES);
resp->offset = _offset_union (sysdeps);
break;
#if GLIBTOP_SUID_CPU
case GLIBTOP_CMND_CPU:
glibtop_get_cpu_p (server, &resp->u.data.cpu);
resp->offset = _offset_data (cpu);
break;
#endif
#if GLIBTOP_SUID_MEM
case GLIBTOP_CMND_MEM:
glibtop_get_mem_p (server, &resp->u.data.mem);
resp->offset = _offset_data (mem);
break;
#endif
#if GLIBTOP_SUID_SWAP
case GLIBTOP_CMND_SWAP:
glibtop_get_swap_p (server, &resp->u.data.swap);
resp->offset = _offset_data (swap);
break;
#endif
#if GLIBTOP_SUID_UPTIME
case GLIBTOP_CMND_UPTIME:
glibtop_get_uptime_p (server, &resp->u.data.uptime);
resp->offset = _offset_data (uptime);
break;
#endif
#if GLIBTOP_SUID_LOADAVG
case GLIBTOP_CMND_LOADAVG:
glibtop_get_loadavg_p (server, &resp->u.data.loadavg);
resp->offset = _offset_data (loadavg);
break;
#endif
#if GLIBTOP_SUID_SHM_LIMITS
case GLIBTOP_CMND_SHM_LIMITS:
glibtop_get_shm_limits_p (server, &resp->u.data.shm_limits);
resp->offset = _offset_data (shm_limits);
break;
#endif
#if GLIBTOP_SUID_MSG_LIMITS
case GLIBTOP_CMND_MSG_LIMITS:
glibtop_get_msg_limits_p (server, &resp->u.data.msg_limits);
resp->offset = _offset_data (msg_limits);
break;
#endif
#if GLIBTOP_SUID_SEM_LIMITS
case GLIBTOP_CMND_SEM_LIMITS:
glibtop_get_sem_limits_p (server, &resp->u.data.sem_limits);
resp->offset = _offset_data (sem_limits);
break;
#endif
#if GLIBTOP_SUID_PROC_STATE
case GLIBTOP_CMND_PROC_STATE:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_state_p
(server, &resp->u.data.proc_state, pid);
resp->offset = _offset_data (proc_state);
break;
#endif
#if GLIBTOP_SUID_PROC_UID
case GLIBTOP_CMND_PROC_UID:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_uid_p
(server, &resp->u.data.proc_uid, pid);
resp->offset = _offset_data (proc_uid);
break;
#endif
#if GLIBTOP_SUID_PROC_MEM
case GLIBTOP_CMND_PROC_MEM:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_mem_p
(server, &resp->u.data.proc_mem, pid);
resp->offset = _offset_data (proc_mem);
break;
#endif
#if GLIBTOP_SUID_PROC_TIME
case GLIBTOP_CMND_PROC_TIME:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_time_p
(server, &resp->u.data.proc_time, pid);
resp->offset = _offset_data (proc_time);
break;
#endif
#if GLIBTOP_SUID_PROC_IO
case GLIBTOP_CMND_PROC_IO:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_io_p
(server, &resp->u.data.proc_io, pid);
resp->offset = _offset_data (proc_time);
break;
#endif
#if GLIBTOP_SUID_PROC_SIGNAL
case GLIBTOP_CMND_PROC_SIGNAL:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_signal_p
(server, &resp->u.data.proc_signal, pid);
resp->offset = _offset_data (proc_signal);
break;
#endif
#if GLIBTOP_SUID_PROC_KERNEL
case GLIBTOP_CMND_PROC_KERNEL:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_kernel_p
(server, &resp->u.data.proc_kernel, pid);
resp->offset = _offset_data (proc_kernel);
break;
#endif
#if GLIBTOP_SUID_PROC_SEGMENT
case GLIBTOP_CMND_PROC_SEGMENT:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_segment_p
(server, &resp->u.data.proc_segment, pid);
resp->offset = _offset_data (proc_segment);
break;
#endif
#if GLIBTOP_SUID_NETLOAD
case GLIBTOP_CMND_NETLOAD:
glibtop_get_netload_p (server, &resp->u.data.netload, parameter);
resp->offset = _offset_data (netload);
break;
#endif
#if GLIBTOP_SUID_PPP
case GLIBTOP_CMND_PPP:
memcpy (&device, parameter, sizeof (unsigned short));
glibtop_get_ppp_p (server, &resp->u.data.ppp, device);
resp->offset = _offset_data (ppp);
break;
#endif
default:
glibtop_error ("Child received unknown command %llu",
cmnd->command);
break;
}
}
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