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/*
* Guillaume Cottenceau (gc@mandrakesoft.com)
* Olivier Blin (oblin@mandrakesoft.com)
*
* Copyright 2000 Mandrakesoft
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* Portions from Erik Troan (ewt@redhat.com)
*
* Copyright 1996 Red Hat Software
*
*/
#include <unistd.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <string.h>
#include <libgen.h>
#include "stage1.h"
#include "frontend.h"
#include "log.h"
#include "lomount.h"
char * extract_list_directory(char * direct)
{
char ** full = list_directory(direct);
char tmp[20000] = "";
int i;
for (i=0; i<50 ; i++) {
if (!full || !*full)
break;
strcat(tmp, *full);
strcat(tmp, "\n");
full++;
}
return strdup(tmp);
}
static void choose_iso_in_directory(char *directory, char *location_full)
{
char **file;
char *stage2_isos[100] = { "Use directory as a mirror tree", "-----" };
int stage2_iso_number = 2;
log_message("\"%s\" exists and is a directory, looking for iso files", directory);
for (file = list_directory(directory); *file; file++) {
char isofile[500];
char * loopdev = NULL;
if (strstr(*file, ".iso") != *file + strlen(*file) - 4)
/* file doesn't end in .iso, skipping */
continue;
strcpy(isofile, directory);
strcat(isofile, "/");
strcat(isofile, *file);
if (lomount(isofile, LOOP_LOCATION, &loopdev, 0)) {
log_message("unable to mount iso file \"%s\", skipping", isofile);
continue;
}
symlink(LOOP_LOCATION_REL "/" ARCH, IMAGE_LOCATION);
if (image_has_stage2()) {
log_message("stage2 installer found in ISO image \"%s\"", isofile);
stage2_isos[stage2_iso_number++] = strdup(*file);
} else {
log_message("ISO image \"%s\" doesn't contain stage2 installer", isofile);
}
unlink(IMAGE_LOCATION);
umount(LOOP_LOCATION);
del_loop(loopdev);
}
stage2_isos[stage2_iso_number] = NULL;
if (stage2_iso_number > 2) {
enum return_type results;
do {
results = ask_from_list("Please choose the ISO image to be used to install the "
DISTRIB_NAME " Distribution.",
stage2_isos, file);
if (results == RETURN_BACK) {
return;
} else if (results == RETURN_OK) {
if (!strcmp(*file, stage2_isos[0])) {
/* use directory as a mirror tree */
continue;
} else if (!strcmp(*file, stage2_isos[1])) {
/* the separator has been selected */
results = RETURN_ERROR;
continue;
} else {
/* use selected ISO image */
strcat(location_full, "/");
strcat(location_full, *file);
log_message("installer will use ISO image \"%s\"", location_full);
}
}
} while (results == RETURN_ERROR);
} else {
log_message("no ISO image found in \"%s\" directory", location_full);
}
}
enum return_type try_with_directory(char *directory, char *method_live, char *method_iso) {
char location_full[500];
char * loopdev = NULL;
struct stat statbuf;
enum return_type ret = RETURN_OK;
unlink(IMAGE_LOCATION);
strcpy(location_full, directory);
if (!stat(directory, &statbuf) && S_ISDIR(statbuf.st_mode)) {
choose_iso_in_directory(directory, location_full);
}
loopdev = NULL;
if (!stat(location_full, &statbuf) && !S_ISDIR(statbuf.st_mode)) {
log_message("%s exists and is not a directory, assuming this is an ISO image", location_full);
if (lomount(location_full, LOOP_LOCATION, &loopdev, 0)) {
stg1_error_message("Could not mount file %s as an ISO image of the " DISTRIB_NAME " Distribution.", location_full);
return RETURN_ERROR;
}
symlink(LOOP_LOCATION_REL "/" ARCH, IMAGE_LOCATION);
add_to_env("ISOPATH", location_full);
add_to_env("METHOD", method_iso);
} else {
int offset = strncmp(location_full, IMAGE_LOCATION_DIR, sizeof(IMAGE_LOCATION_DIR) - 1) == 0 ? sizeof(IMAGE_LOCATION_DIR) - 1 : 0;
log_message("assuming %s is a mirror tree", location_full + offset);
symlink(location_full + offset, IMAGE_LOCATION);
add_to_env("METHOD", method_live);
}
if (access(IMAGE_LOCATION "/" COMPRESSED_LOCATION_REL, R_OK)) {
stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
"(I need the subdirectory " COMPRESSED_LOCATION_REL ")\n"
"Here's a short extract of the files in the directory:\n"
"%s", extract_list_directory(IMAGE_LOCATION));
ret = RETURN_BACK;
} else if (may_load_compressed_image() != RETURN_OK) {
stg1_error_message("Could not load program into memory.");
ret = RETURN_ERROR;
}
if (ret == RETURN_OK)
log_message("found the " DISTRIB_NAME " Installation, good news!");
if (!KEEP_MOUNTED || ret != RETURN_OK) {
/* in rescue mode, we don't need the media anymore */
umount(LOOP_LOCATION);
del_loop(loopdev);
}
return ret;
}
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