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144 lines
3.1 KiB
C
144 lines
3.1 KiB
C
/*
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* parallels_utils.c: core driver functions for managing
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* Parallels Cloud Server hosts
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*
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* Copyright (C) 2012 Parallels, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include <stdarg.h>
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#include "vircommand.h"
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#include "virerror.h"
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#include "viralloc.h"
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#include "virjson.h"
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#include "parallels_utils.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_PARALLELS
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static int
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parallelsDoCmdRun(char **outbuf, const char *binary, va_list list)
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{
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virCommandPtr cmd = virCommandNewVAList(binary, list);
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int ret = -1;
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if (outbuf)
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virCommandSetOutputBuffer(cmd, outbuf);
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if (virCommandRun(cmd, NULL) < 0)
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goto cleanup;
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ret = 0;
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cleanup:
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virCommandFree(cmd);
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if (ret && outbuf)
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VIR_FREE(*outbuf);
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return ret;
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}
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/*
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* Run command and parse its JSON output, return
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* pointer to virJSONValue or NULL in case of error.
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*/
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virJSONValuePtr
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parallelsParseOutput(const char *binary, ...)
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{
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char *outbuf;
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virJSONValuePtr jobj = NULL;
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va_list list;
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int ret;
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va_start(list, binary);
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ret = parallelsDoCmdRun(&outbuf, binary, list);
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va_end(list);
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if (ret)
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return NULL;
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jobj = virJSONValueFromString(outbuf);
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if (!jobj)
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("invalid output from prlctl: %s"), outbuf);
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VIR_FREE(outbuf);
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return jobj;
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}
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/*
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* Run command and return its output, pointer to
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* buffer or NULL in case of error. Caller os responsible
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* for freeing the buffer.
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*/
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char *
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parallelsGetOutput(const char *binary, ...)
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{
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char *outbuf;
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va_list list;
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int ret;
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va_start(list, binary);
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ret = parallelsDoCmdRun(&outbuf, binary, list);
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va_end(list);
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if (ret)
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return NULL;
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return outbuf;
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}
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/*
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* Run prlctl command and check for errors
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*
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* Return value is 0 in case of success, else - -1
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*/
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int
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parallelsCmdRun(const char *binary, ...)
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{
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int ret;
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va_list list;
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va_start(list, binary);
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ret = parallelsDoCmdRun(NULL, binary, list);
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va_end(list);
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return ret;
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}
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/*
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* Return new file path in malloced string created by
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* concatenating first and second function arguments.
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*/
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char *
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parallelsAddFileExt(const char *path, const char *ext)
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{
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char *new_path = NULL;
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size_t len = strlen(path) + strlen(ext) + 1;
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if (VIR_ALLOC_N(new_path, len) < 0)
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return NULL;
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if (!virStrcpy(new_path, path, len)) {
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VIR_FREE(new_path);
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return NULL;
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}
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strcat(new_path, ext);
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return new_path;
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}
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