[libvirt] [PATCH 4/7] Add a sysinfo util module and read host info API
Daniel P. Berrange
berrange at redhat.com
Wed Nov 3 11:48:50 UTC 2010
On Tue, Nov 02, 2010 at 05:36:46PM +0100, Daniel Veillard wrote:
> +virSysinfoDefPtr
> +virSysinfoRead(void) {
> + char *path, *cur, *eol, *base;
> + int pid, outfd = -1, errfd = -1;
> + virSysinfoDefPtr ret = NULL;
> + const char **argv;
> + int n, res, waitret, exitstatus;
> + char *outbuf = NULL;
> + char *errbuf = NULL;
> +
> + path = virFindFileInPath(SYSINFO_SMBIOS_DECODER);
> + if (path == NULL) {
> + virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
> + _("Failed to find path for %s binary"),
> + SYSINFO_SMBIOS_DECODER);
> + return(NULL);
> + }
> +
> + n = 1 + /* dmidecode */
> + 1 + /* -q */
> + 2; /* -t 0,1 */
> +
> + if (VIR_ALLOC_N(argv, n + 1) < 0)
> + return(NULL);
> +
> + n = 0;
> + argv[n++] = path;
> + argv[n++] = "-q";
> + argv[n++] = "-t";
> + argv[n++] = "0,1";
> + argv[n] = NULL;
Since there's no conditionally included args here, it is simpler
to avoid the counting of args & alloc & just pre-declare argv
const char *argv[] = { path, "-q", "-t", "0,1", NULL };
Regards,
Daniel
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