EMILE/tools/emile-install.c

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/*
*
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* (c) 2004,2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
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*
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
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#include "libemile.h"
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enum {
ARG_NONE = 0,
ARG_HELP ='h',
ARG_VERBOSE = 'v',
ARG_FIRST = 'f',
ARG_SECOND = 's',
ARG_KERNEL = 'k',
ARG_RAMDISK = 'r',
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ARG_GETINFO = 'g',
};
static struct option long_options[] =
{
{"help", 0, NULL, ARG_HELP },
{"verbose", 0, NULL, ARG_VERBOSE },
{"first", 1, NULL, ARG_FIRST },
{"second", 1, NULL, ARG_SECOND },
{"kernel", 1, NULL, ARG_KERNEL },
{"ramdisk", 1, NULL, ARG_RAMDISK },
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{"getinfo", 1, NULL, ARG_GETINFO },
{NULL, 0, NULL, 0 },
};
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static void usage(int argc, char** argv)
{
fprintf(stderr, "Usage: %s [OPTION] <image>\n", argv[0]);
fprintf(stderr, "Create an EMILE bootable floppy disk\n");
fprintf(stderr, "EMILE allows you to boot linux from a floppy disk\n");
fprintf(stderr, " -h, --help display this text\n");
fprintf(stderr, " -v, --verbose verbose mode\n");
fprintf(stderr, " -f, --first first level to copy to floppy\n");
fprintf(stderr, " -s, --second second level to copy to floppy\n");
fprintf(stderr, " -k, --kernel kernel to copy to floppy\n");
fprintf(stderr, " -r, --ramdisk ramdisk to copy to floppy\n");
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fprintf(stderr, " -g, --getinfo get information from >image>\n");
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fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
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}
int main(int argc, char** argv)
{
int verbose = 0;
int option_index = 0;
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char* first_level = NULL;
char* second_level = NULL;
char* kernel_image = NULL;
char* ramdisk = NULL;
char* image = NULL;
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int action_getinfo = 0;
int c;
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int ret;
while(1)
{
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c = getopt_long(argc, argv, "hvf:s:k:r:g", long_options,
&option_index);
if (c == -1)
break;
switch(c)
{
case ARG_HELP:
usage(argc, argv);
return 0;
case ARG_VERBOSE:
verbose = 1;
break;
case ARG_FIRST:
first_level = optarg;
break;
case ARG_SECOND:
second_level = optarg;
break;
case ARG_KERNEL:
kernel_image = optarg;
break;
case ARG_RAMDISK:
ramdisk = optarg;
break;
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case ARG_GETINFO:
action_getinfo = 1;
break;
}
}
if (optind < argc)
image = argv[optind];
if (image == NULL)
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{
fprintf(stderr,
"ERROR: you must provide an image file or a block device.\n");
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usage(argc, argv);
return 1;
}
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if (action_getinfo)
{
int fd;
int drive_num;
int second_offset;
int second_size;
fd = open(image, O_RDONLY);
if (fd == -1)
{
fprintf(stderr, "ERROR: cannot open \"%s\"\n",
image);
return 2;
}
/* first level info */
ret = emile_first_get_param(fd, &drive_num, &second_offset,
&second_size);
if (ret == 0)
{
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char * configuration;
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printf("EMILE boot block identified\n\n");
printf("Drive number: %d\n", drive_num);
printf("Second level offset: %d\n", second_offset);
printf("Second level size: %d\n", second_size);
/* second level info */
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configuration = emile_second_get_configuration(fd);
if (configuration == NULL)
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{
fprintf(stderr, "ERROR: cannot read second level\n");
return 3;
}
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printf("%s\n", configuration);
free(configuration);
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}
else
printf("EMILE is not installed in this bootblock\n");
close(fd);
return 0;
}
if (first_level == NULL)
first_level = PREFIX "/lib/emile/first_floppy";
if (second_level == NULL)
second_level = PREFIX "/lib/emile/second_floppy";
if (kernel_image == NULL)
kernel_image = PREFIX "/boot/vmlinuz";
if (verbose)
{
printf("first: %s\n", first_level);
printf("second: %s\n", second_level);
printf("kernel: %s\n", kernel_image);
printf("ramdisk: %s\n", ramdisk);
printf("image: %s\n", image);
}
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ret = emile_floppy_create_image(first_level, second_level,
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kernel_image, ramdisk, image);
switch(ret)
{
case 0:
break;
case EEMILE_CANNOT_WRITE_FIRST:
fprintf(stderr, "ERROR: cannot write first\n");
break;
case EEMILE_CANNOT_WRITE_SECOND:
fprintf(stderr, "ERROR: cannot write second\n");
break;
case EEMILE_CANNOT_WRITE_KERNEL:
fprintf(stderr, "ERROR: cannot write kernel\n");
break;
case EEMILE_CANNOT_WRITE_RAMDISK:
fprintf(stderr, "ERROR: cannot write ramdisk\n");
break;
case EEMILE_CANNOT_WRITE_PAD:
fprintf(stderr, "ERROR: cannot write padding\n");
break;
case EEMILE_CANNOT_CREATE_IMAGE:
fprintf(stderr, "ERROR: cannot create image\n");
break;
case EEMILE_CANNOT_OPEN_FILE:
fprintf(stderr, "ERROR: cannot open one of provided files\n");
break;
default:
fprintf(stderr, "ERROR: unknown error :-P\n");
break;
}
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return ret;
}