mnc: initial add

tools/munin-node-c/Makefile

@@ -0,0 +1,14 @@
+CC=gcc
+CFLAGS=-W -Wall -pedantic -Wextra -g -O2
+OBJS=main.o
+LINKS=
+
+%.o: %.c
+	${CC} ${CFLAGS} -c $< -o $@
+all: munin-node-c
+
+munin-node-c: ${OBJS}
+	${CC} ${CFLAGS} $^ -o $@
+clean:
+	rm -f munin-node-c ${OBJS} ${LINKS}
+.PHONY: all clean

tools/munin-node-c/README

@@ -0,0 +1,28 @@
+This is a rewrite of munin node in C.
+
+Pro:
+----
+
+The purpose is multiple:
+
+ * reducing resource usage for embedded plateforms, specially when paired
+   with the C rewrite of the core plugins.
+
+ * no need for Perl
+
+ * Everything runs from inetd.
+
+Cons:
+-----
+
+ * You lose flexibility
+
+      It is compiled code, so you have to create binaries.  Even one for each
+      architecture.
+
+ * Not all the features are implemented
+
+     - root uid is not supported. All plugins are run with a single user, usually nobody.
+     - no socket is opened. Everything runs from inetd.
+
+GPLv2 - (C) 2013 Steve SCHNEPP <steve.schnepp@pwkf.org>

tools/munin-node-c/main.c

@@ -0,0 +1,58 @@
+#include <libgen.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <limits.h>
+
+
+char VERSION[] = "1.0.0";
+
+int verbose;
+
+char* host = "";
+char* plugin_dir = "plugins";
+char* spoolfetch_dir = "";
+
+int main(int argc, char *argv[]) {
+
+	int optch;
+	extern int opterr;
+	int optarg_len;
+
+	char format[] = "vd:h:s:";
+
+	opterr = 1;
+
+	while ((optch = getopt(argc, argv, format)) != -1)
+	switch (optch) {
+		case 'v':
+			verbose ++;
+			break;
+		case 'd':
+			optarg_len = strlen(optarg);
+			plugin_dir = (char *) malloc(optarg_len + 1);
+			strcpy(plugin_dir, optarg);
+			break;
+		case 'h':
+			optarg_len = strlen(optarg);
+			host = (char *) malloc(optarg_len + 1);
+			strcpy(host, optarg);
+			break;
+		case 's':
+			optarg_len = strlen(optarg);
+			spoolfetch_dir = (char *) malloc(optarg_len + 1);
+			strcpy(spoolfetch_dir, optarg);
+			break;
+	}
+
+	/* get default hostname if not precised */
+	if (! strlen(host)) {
+		host = (char *) malloc(HOST_NAME_MAX + 1);
+		gethostname(host, HOST_NAME_MAX);
+	}
+
+	printf("verbose: %d, host: %s, plugin_dir: %s, spoolfetch_dir: %s\n", verbose, host, plugin_dir, spoolfetch_dir);
+
+
+	return 0;
+}