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#include <stdio.h>
#include <stdlib.h>
#include <sys/utsname.h>
#include "uname.h"
#include "util.h"
static void *uname_init(int argc, char *argv[]);
static void uname_collect(scrape_req *req, void *ctx);
const struct collector uname_collector = {
.name = "uname",
.collect = uname_collect,
.init = uname_init,
};
enum {
label_machine,
label_nodename,
label_release,
label_sysname,
label_version,
max_label,
};
struct uname_context {
const char *labels[max_label + 1][2];
};
static void *uname_init(int argc, char *argv[]) {
struct utsname name;
if (uname(&name) == -1) {
perror("uname");
return 0;
}
struct uname_context *ctx = must_malloc(sizeof *ctx);
ctx->labels[label_machine][0] = "machine";
ctx->labels[label_machine][1] = must_strdup(name.machine);
ctx->labels[label_nodename][0] = "nodename";
ctx->labels[label_nodename][1] = must_strdup(name.nodename);
ctx->labels[label_release][0] = "release";
ctx->labels[label_release][1] = must_strdup(name.release);
ctx->labels[label_sysname][0] = "sysname";
ctx->labels[label_sysname][1] = must_strdup(name.sysname);
ctx->labels[label_version][0] = "version";
ctx->labels[label_version][1] = must_strdup(name.version);
ctx->labels[max_label][0] = ctx->labels[max_label][1] = 0;
return ctx;
}
static void uname_collect(scrape_req *req, void *ctx_ptr) {
struct uname_context *ctx = ctx_ptr;
scrape_write(req, "node_uname_info", ctx->labels, 1.0);
}
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