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/*
* parallels_utils.c: core driver functions for managing
* Parallels Cloud Server hosts
*
* Copyright (C) 2012 Parallels, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <stdarg.h>
#include "command.h"
#include "virterror_internal.h"
#include "memory.h"
#include "json.h"
#include "parallels_utils.h"
#define VIR_FROM_THIS VIR_FROM_PARALLELS
static int
parallelsDoCmdRun(char **outbuf, const char *binary, va_list list)
{
virCommandPtr cmd = virCommandNewVAList(binary, list);
char *scmd = NULL;
int ret = -1;
if (outbuf)
virCommandSetOutputBuffer(cmd, outbuf);
scmd = virCommandToString(cmd);
if (!scmd)
goto cleanup;
if (virCommandRun(cmd, NULL))
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(scmd);
virCommandFree(cmd);
if (ret)
VIR_FREE(*outbuf);
return ret;
}
/*
* Run command and parse its JSON output, return
* pointer to virJSONValue or NULL in case of error.
*/
virJSONValuePtr
parallelsParseOutput(const char *binary, ...)
{
char *outbuf;
virJSONValuePtr jobj = NULL;
va_list list;
int ret;
va_start(list, binary);
ret = parallelsDoCmdRun(&outbuf, binary, list);
va_end(list);
if (ret)
return NULL;
jobj = virJSONValueFromString(outbuf);
if (!jobj)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid output from prlctl: %s"), outbuf);
VIR_FREE(outbuf);
return jobj;
}
/*
* Run command and return its output, pointer to
* buffer or NULL in case of error. Caller os responsible
* for freeing the buffer.
*/
char *
parallelsGetOutput(const char *binary, ...)
{
char *outbuf;
va_list list;
int ret;
va_start(list, binary);
ret = parallelsDoCmdRun(&outbuf, binary, list);
va_end(list);
if (ret)
return NULL;
return outbuf;
}
/*
* Run prlctl command and check for errors
*
* Return value is 0 in case of success, else - -1
*/
int
parallelsCmdRun(const char *binary, ...)
{
int ret;
va_list list;
va_start(list, binary);
ret = parallelsDoCmdRun(NULL, binary, list);
va_end(list);
return ret;
}
/*
* Return new file path in malloced string created by
* concatenating first and second function arguments.
*/
char *
parallelsAddFileExt(const char *path, const char *ext)
{
char *new_path = NULL;
size_t len = strlen(path) + strlen(ext) + 1;
if (VIR_ALLOC_N(new_path, len) < 0) {
virReportOOMError();
return NULL;
}
if (!virStrcpy(new_path, path, len))
return NULL;
strcat(new_path, ext);
return new_path;
}
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