mirror of
https://github.com/vivier/EMILE.git
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3be63e7001
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
189 lines
3.8 KiB
C
189 lines
3.8 KiB
C
/*
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*
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* (c) 2004 Laurent Vivier <Laurent@Vivier.EU>
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*
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libemile.h"
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#include "libconfig.h"
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#include "device.h"
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enum {
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ARG_NONE = 0,
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ARG_HELP ='h',
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ARG_GETINFO = 'g',
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};
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static struct option long_options[] =
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{
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{"help", 0, NULL, ARG_HELP },
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{"getinfo", 1, NULL, ARG_GETINFO },
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{NULL, 0, NULL, 0 },
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};
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static void usage(int argc, char** argv)
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{
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fprintf(stderr, "Usage: %s [OPTION] <partition> <path>\n", argv[0]);
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fprintf(stderr, "Set/get the path to the configuration file\n");
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fprintf(stderr, " -h, --help display this text\n");
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fprintf(stderr, " -g, --getinfo "
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"get second level information\n");
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fprintf(stderr, "Example:\n");
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fprintf(stderr, " %s /dev/sda2 (sd0,4)/emile.conf\n", argv[0]);
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fprintf(stderr, "sd -> SCSI disk\n");
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fprintf(stderr, "0 -> SCSI Id\n");
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fprintf(stderr, "4 -> partition /dev/sda5\n");
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fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
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}
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static int set_conf(char* image, char *path)
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{
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int fd;
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char property[256];
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int ret;
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device_io_t device;
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int driver;
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int disk;
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int partition;
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char dev_name[256];
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map_t *map;
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snprintf(property, 256, "configuration %s", path);
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fd = open(image, O_RDWR);
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if (fd == -1)
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{
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perror("Cannot open image file");
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return 2;
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}
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ret = emile_second_set_configuration(fd, (int8_t *)property);
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close(fd);
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if (ret == -1) {
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fprintf(stderr, "Cannot set configuration\n");
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return 3;
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}
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/* compute driver new checksum */
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ret = emile_scsi_get_rdev(image, &driver, &disk, &partition);
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emile_get_dev_name(dev_name, driver, disk, 0);
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device_sector_size = 512;
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device.write_sector = (stream_write_sector_t)device_write_sector;
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device.read_sector = (stream_read_sector_t)device_read_sector;
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device.close = (stream_close_t)device_close;
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device.get_blocksize = (stream_get_blocksize_t)device_get_blocksize;
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device.data = (void*)device_open(dev_name, O_RDWR);
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map = map_open(&device);
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if (map == NULL)
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{
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fprintf(stderr, "ERROR: cannot open partition map\n");
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return 4;
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}
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ret = map_update_checksum(map, 0);
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if (ret == -1) {
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fprintf(stderr, "ERROR: cannot update driver checksum\n");
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return 5;
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}
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map_close(map);
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return 0;
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}
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int get_conf(char* image)
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{
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int fd;
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int8_t *configuration;
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char property[256];
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fd = open(image, O_RDONLY);
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if (fd == -1)
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{
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perror("Cannot open image file");
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return 2;
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}
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configuration = emile_second_get_configuration(fd);
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close(fd);
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if (configuration == NULL) {
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fprintf(stderr, "Cannot find configuration\n");
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return 3;
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}
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if (config_get_property(configuration, "configuration", property) == -1) {
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fprintf(stderr, "Invalid configuration\n");
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return 4;
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}
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printf("%s\n", property);
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return 0;
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}
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int main(int argc, char** argv)
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{
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int ret;
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char *file = NULL;
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char *conf = NULL;
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int action_getinfo = 0;
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int option_index;
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int c;
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while(1)
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{
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c = getopt_long(argc, argv, "ha:k:r:g", long_options,
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&option_index);
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if (c == -1)
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break;
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switch(c)
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{
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case ARG_HELP:
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usage(argc, argv);
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return 0;
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case ARG_GETINFO:
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action_getinfo = 1;
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break;
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}
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}
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if (optind < argc)
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file = argv[optind];
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optind++;
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if (optind < argc)
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conf = argv[optind];
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if (file == NULL)
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{
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fprintf(stderr,
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"ERROR: you must provide an image file or a block device.\n");
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usage(argc, argv);
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return 1;
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}
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if (action_getinfo)
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return get_conf(file);
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if (conf == NULL) {
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fprintf(stderr,
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"ERROR: you must provide an configuration path.\n");
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usage(argc, argv);
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return 1;
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}
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ret = set_conf(file, conf);
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return ret;
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}
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