mirror of
https://github.com/libguestfs/libguestfs.git
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139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2009 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "../src/guestfs_protocol.h"
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#include "daemon.h"
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#include "actions.h"
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/* This command exposes debugging information, internals and
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* status. There is no comprehensive documentation for this
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* command. You have to look at the source code in this file
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* to find out what you can do.
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*
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* Commands always output a freeform string.
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*/
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#if ENABLE_DEBUG_COMMAND
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struct cmd {
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const char *cmd;
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char * (*f) (const char *subcmd, int argc, char *const *const argv);
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};
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static char *debug_help (const char *subcmd, int argc, char *const *const argv);
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#if 0
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static char *debug_fds (const char *subcmd, int argc, char *const *const argv);
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static char *debug_free (const char *subcmd, int argc, char *const *const argv);
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static char *debug_mem (const char *subcmd, int argc, char *const *const argv);
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static char *debug_ps (const char *subcmd, int argc, char *const *const argv);
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#endif
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static struct cmd cmds[] = {
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{ "help", debug_help },
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#if 0
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{ "fds", debug_fds },
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{ "free", debug_free },
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{ "mem", debug_mem },
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{ "ps", debug_free },
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#endif
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{ NULL, NULL }
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};
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#endif
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char *
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do_debug (const char *subcmd, char *const *const argv)
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{
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#if ENABLE_DEBUG_COMMAND
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int argc, i;
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for (i = argc = 0; argv[i] != NULL; ++i)
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argc++;
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for (i = 0; cmds[i].cmd != NULL; ++i) {
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if (strcasecmp (subcmd, cmds[i].cmd) == 0)
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return cmds[i].f (subcmd, argc, argv);
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}
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reply_with_error ("use 'debug help' to list the supported commands");
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return NULL;
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#else
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reply_with_error ("guestfsd was not configured with --enable-debug-command");
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return NULL;
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#endif
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}
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#if ENABLE_DEBUG_COMMAND
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static char *
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debug_help (const char *subcmd, int argc, char *const *const argv)
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{
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int len, i;
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char *r, *p;
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r = strdup ("Commands supported:");
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if (!r) {
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reply_with_perror ("strdup");
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return NULL;
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}
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len = strlen (r);
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for (i = 0; cmds[i].cmd != NULL; ++i) {
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len += strlen (cmds[i].cmd) + 1; /* space + new command */
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p = realloc (r, len + 1); /* +1 for the final NUL */
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if (p == NULL) {
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reply_with_perror ("realloc");
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free (r);
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return NULL;
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}
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r = p;
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strcat (r, " ");
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strcat (r, cmds[i].cmd);
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}
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return r;
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}
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#if 0
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static char *
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debug_fds (const char *subcmd, int argc, char *const *const argv)
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{
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}
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static char *
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debug_free (const char *subcmd, int argc, char *const *const argv)
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{
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}
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static char *
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debug_mem (const char *subcmd, int argc, char *const *const argv)
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{
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}
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static char *
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debug_ps (const char *subcmd, int argc, char *const *const argv)
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{
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}
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#endif
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#endif /* ENABLE_DEBUG_COMMAND */
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