Initial prototype.

1 files changed, 55 insertions, 0 deletions

diff --git a/uname.c b/uname.c
new file mode 100644
index 0000000..6d71764
--- /dev/null
+++ b/uname.c
@@ -0,0 +1,55 @@
+#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);
+}