tools: add tools to set conf path into emiledriver

Signed-off-by: Laurent Vivier <laurent@vivier.eu>

tools/Makefile

@@ -9,13 +9,14 @@ TOP=$(shell pwd)
 PROGRAMS = emile-set-cmdline emile-first-tune emile-install \
 	   emile-set-output emile emile-map-set iso9660_ls \
 	   iso9660_cat minigzip read_vmlinuz emile-mkisofs \
-	   ext2_ls ext2_cat emile-mktable
+	   ext2_ls ext2_cat emile-mktable emile-conf
 
 SOURCES	= emile-set-cmdline.c Makefile emile-first-tune.c \
 		  emile-install.c emile-set-output.c emile.c \
 		  emile_scanbus.c emile-map-set.c iso9660_ls.c \
 		  iso9660_cat.c minigzip.c read_vmlinuz.c device.c gzio.c \
-		  emile-mkisofs.c ext2_ls.c ext2_cat.c emile-mktable.c
+		  emile-mkisofs.c ext2_ls.c ext2_cat.c emile-mktable.c \
+		  emile-conf.c
 
 HEADERS	= device.h
 
@@ -54,6 +55,7 @@ read_vmlinuz: read_vmlinuz.o gzio.o
 
 emile-mkisofs: emile-mkisofs.o device.o
 emile-mktable: emile-mktable.o device.o
+emile-conf: emile-conf.o device.o
 
 install:
 	install -d $(DESTDIR)/$(PREFIX)/sbin/
@@ -65,6 +67,7 @@ install:
 	install emile-map-set $(DESTDIR)/$(PREFIX)/sbin/emile-map-set
 	install emile-mkisofs $(DESTDIR)/$(PREFIX)/sbin/emile-mkisofs
 	install emile-mktable $(DESTDIR)/$(PREFIX)/sbin/emile-mktable
+	install emile-conf $(DESTDIR)/$(PREFIX)/sbin/emile-conf
 
 uninstall:
 	rm -f $(DESTDIR)/$(PREFIX)/sbin/emile-set-cmdline
@@ -75,6 +78,7 @@ uninstall:
 	rm -f $(DESTDIR)/$(PREFIX)/sbin/emile-map-set
 	rm -f $(DESTDIR)/$(PREFIX)/sbin/emile-mkisofs
 	rm -f $(DESTDIR)/$(PREFIX)/sbin/emile-mktable
+	rm -f $(DESTDIR)/$(PREFIX)/sbin/emile-conf
 
 dist:
 	@echo TAR tools

tools/emile-conf.c

@@ -0,0 +1,188 @@
+/*
+ *
+ * (c) 2004 Laurent Vivier <Laurent@Vivier.EU>
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libemile.h"
+#include "libconfig.h"
+#include "device.h"
+
+enum {
+	ARG_NONE = 0,
+	ARG_HELP ='h',
+	ARG_GETINFO = 'g',
+};
+
+static struct option long_options[] =
+{
+	{"help",	0, NULL,	ARG_HELP	},
+	{"getinfo",	1, NULL,	ARG_GETINFO	},
+	{NULL,		0, NULL,	0		},
+};
+
+static void usage(int argc, char** argv)
+{
+	fprintf(stderr, "Usage: %s [OPTION] <partition> <path>\n", argv[0]);
+	fprintf(stderr, "Set/get the path to the configuration file\n");
+	fprintf(stderr, "   -h, --help          display this text\n");
+	fprintf(stderr, "   -g, --getinfo       "
+	                "get second level information\n");
+	fprintf(stderr, "Example:\n");
+	fprintf(stderr, "    %s /dev/sda2 (sd0,4)/emile.conf\n", argv[0]);
+	fprintf(stderr, "sd -> SCSI disk\n");
+	fprintf(stderr, "0  -> SCSI Id\n");
+	fprintf(stderr, "4  -> partition /dev/sda5\n");
+	fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
+}
+
+static int set_conf(char* image, char *path)
+{
+	int fd;
+	char property[256];
+	int ret;
+	device_io_t device;
+	int driver;
+	int disk;
+	int partition;
+	char dev_name[256];
+	map_t *map;
+
+	snprintf(property, 256, "configuration %s", path);
+
+	fd = open(image, O_RDWR);
+
+	if (fd == -1)
+	{
+		perror("Cannot open image file");
+		return 2;
+	}
+
+	ret = emile_second_set_configuration(fd, (int8_t *)property);
+	close(fd);
+
+	if (ret == -1) {
+		fprintf(stderr, "Cannot set configuration\n");
+		return 3;
+	}
+
+	/* compute driver new checksum */
+
+	ret = emile_scsi_get_rdev(image, &driver, &disk, &partition);
+	emile_get_dev_name(dev_name, driver, disk, 0);
+	device_sector_size = 512;
+        device.write_sector = (stream_write_sector_t)device_write_sector;
+        device.read_sector = (stream_read_sector_t)device_read_sector;
+        device.close = (stream_close_t)device_close;
+        device.get_blocksize = (stream_get_blocksize_t)device_get_blocksize;
+        device.data = (void*)device_open(dev_name, O_RDWR);
+
+        map = map_open(&device);
+        if (map == NULL)
+        {
+                fprintf(stderr, "ERROR: cannot open partition map\n");
+                return 4;
+        }
+
+	ret = map_update_checksum(map, 0);
+	if (ret == -1) {
+                fprintf(stderr, "ERROR: cannot update driver checksum\n");
+                return 5;
+	}
+
+	map_close(map);
+
+	return 0;
+}
+
+int get_conf(char* image)
+{
+	int fd;
+	int8_t *configuration;
+	char property[256];
+
+	fd = open(image, O_RDONLY);
+	if (fd == -1)
+	{
+		perror("Cannot open image file");
+		return 2;
+	}
+
+	configuration = emile_second_get_configuration(fd);
+	close(fd);
+
+	if (configuration == NULL) {
+		fprintf(stderr, "Cannot find configuration\n");
+		return 3;
+	} 
+
+	if (config_get_property(configuration, "configuration", property) == -1) {
+		fprintf(stderr, "Invalid configuration\n");
+		return 4;
+	}
+
+	printf("%s\n", property);
+	return 0;
+}
+
+int main(int argc, char** argv)
+{
+	int ret;
+	char *file = NULL;
+	char *conf = NULL;
+	int action_getinfo = 0;
+	int option_index;
+	int c;
+
+	while(1)
+	{
+		c = getopt_long(argc, argv, "ha:k:r:g", long_options,
+				&option_index);
+		if (c == -1)
+			break;
+		switch(c)
+		{
+		case ARG_HELP:
+			usage(argc, argv);
+			return 0;
+		case ARG_GETINFO:
+			action_getinfo = 1;
+			break;
+		}
+	}
+	if (optind < argc)
+		file = argv[optind];
+	optind++;
+	if (optind < argc)
+		conf = argv[optind];
+
+	if (file == NULL)
+	{
+		fprintf(stderr,
+			"ERROR: you must provide an image file or a block device.\n");
+		usage(argc, argv);
+		return 1;
+	}
+
+	if (action_getinfo)
+		return get_conf(file);
+
+	if (conf == NULL) {
+		fprintf(stderr,
+			"ERROR: you must provide an configuration path.\n");
+		usage(argc, argv);
+		return 1;
+	}
+	ret = set_conf(file, conf);
+
+	return ret;
+}