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/* libguestfs - the guestfsd daemon
* Copyright (C) 2009 Red Hat Inc.
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../src/guestfs_protocol.h"
#include "daemon.h"
#include "actions.h"
/* This command exposes debugging information, internals and
* status. There is no comprehensive documentation for this
* command. You have to look at the source code in this file
* to find out what you can do.
*
* Commands always output a freeform string.
*/
#if ENABLE_DEBUG_COMMAND
struct cmd {
const char *cmd;
char * (*f) (const char *subcmd, int argc, char *const *const argv);
};
static char *debug_help (const char *subcmd, int argc, char *const *const argv);
#if 0
static char *debug_fds (const char *subcmd, int argc, char *const *const argv);
static char *debug_free (const char *subcmd, int argc, char *const *const argv);
static char *debug_mem (const char *subcmd, int argc, char *const *const argv);
static char *debug_ps (const char *subcmd, int argc, char *const *const argv);
#endif
static struct cmd cmds[] = {
{ "help", debug_help },
#if 0
{ "fds", debug_fds },
{ "free", debug_free },
{ "mem", debug_mem },
{ "ps", debug_free },
#endif
{ NULL, NULL }
};
#endif
char *
do_debug (const char *subcmd, char *const *const argv)
{
#if ENABLE_DEBUG_COMMAND
int argc, i;
for (i = argc = 0; argv[i] != NULL; ++i)
argc++;
for (i = 0; cmds[i].cmd != NULL; ++i) {
if (strcasecmp (subcmd, cmds[i].cmd) == 0)
return cmds[i].f (subcmd, argc, argv);
}
reply_with_error ("use 'debug help' to list the supported commands");
return NULL;
#else
reply_with_error ("guestfsd was not configured with --enable-debug-command");
return NULL;
#endif
}
#if ENABLE_DEBUG_COMMAND
static char *
debug_help (const char *subcmd, int argc, char *const *const argv)
{
int len, i;
char *r, *p;
r = strdup ("Commands supported:");
if (!r) {
reply_with_perror ("strdup");
return NULL;
}
len = strlen (r);
for (i = 0; cmds[i].cmd != NULL; ++i) {
len += strlen (cmds[i].cmd) + 1; /* space + new command */
p = realloc (r, len + 1); /* +1 for the final NUL */
if (p == NULL) {
reply_with_perror ("realloc");
free (r);
return NULL;
}
r = p;
strcat (r, " ");
strcat (r, cmds[i].cmd);
}
return r;
}
#if 0
static char *
debug_fds (const char *subcmd, int argc, char *const *const argv)
{
}
static char *
debug_free (const char *subcmd, int argc, char *const *const argv)
{
}
static char *
debug_mem (const char *subcmd, int argc, char *const *const argv)
{
}
static char *
debug_ps (const char *subcmd, int argc, char *const *const argv)
{
}
#endif
#endif /* ENABLE_DEBUG_COMMAND */
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