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-rw-r--r--mdk-stage1/tools.c537
1 files changed, 0 insertions, 537 deletions
diff --git a/mdk-stage1/tools.c b/mdk-stage1/tools.c
deleted file mode 100644
index dbbd45772..000000000
--- a/mdk-stage1/tools.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- * Guillaume Cottenceau (gc@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 <stdlib.h>
-#include <unistd.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <dirent.h>
-#include <sys/types.h>
-#include <bzlib.h>
-#include <sys/mount.h>
-#include <sys/poll.h>
-#include <errno.h>
-#include <sys/utsname.h>
-#include <sys/ioctl.h>
-#include <linux/fd.h>
-#include "stage1.h"
-#include "log.h"
-#include "mount.h"
-#include "frontend.h"
-#include "automatic.h"
-
-#include "tools.h"
-#include "probing.h"
-#include "modules.h"
-
-static struct param_elem params[50];
-static int param_number = 0;
-
-void process_cmdline(void)
-{
- char buf[512];
- int fd, size, i;
-
- log_message("opening /proc/cmdline... ");
-
- if ((fd = open("/proc/cmdline", O_RDONLY)) == -1)
- fatal_error("could not open /proc/cmdline");
-
- size = read(fd, buf, sizeof(buf));
- buf[size-1] = '\0'; // -1 to eat the \n
- close(fd);
-
- log_message("\t%s", buf);
-
- i = 0;
- while (buf[i] != '\0') {
- char *name, *value = NULL;
- int j = i;
- while (buf[i] != ' ' && buf[i] != '=' && buf[i] != '\0')
- i++;
- if (i == j) {
- i++;
- continue;
- }
- name = memdup(&buf[j], i-j + 1);
- name[i-j] = '\0';
-
- if (buf[i] == '=') {
- int k = i+1;
- i++;
- while (buf[i] != ' ' && buf[i] != '\0')
- i++;
- value = memdup(&buf[k], i-k + 1);
- value[i-k] = '\0';
- }
-
- params[param_number].name = name;
- params[param_number].value = value;
- param_number++;
- if (!strcmp(name, "expert")) set_param(MODE_EXPERT);
- if (!strcmp(name, "changedisk")) set_param(MODE_CHANGEDISK);
- if (!strcmp(name, "updatemodules")) set_param(MODE_UPDATEMODULES);
- if (!strcmp(name, "rescue")) set_param(MODE_RESCUE);
- if (!strcmp(name, "noauto")) set_param(MODE_NOAUTO);
- if (!strcmp(name, "netauto")) set_param(MODE_NETAUTO);
- if (!strcmp(name, "recovery")) set_param(MODE_RECOVERY);
- if (!strcmp(name, "special_stage2")) set_param(MODE_SPECIAL_STAGE2);
- if (!strcmp(name, "debugstage1")) set_param(MODE_DEBUGSTAGE1);
- if (!strcmp(name, "automatic")) {
- set_param(MODE_AUTOMATIC);
- grab_automatic_params(value);
- }
- if (buf[i] == '\0')
- break;
- i++;
- }
-
- log_message("\tgot %d args", param_number);
-}
-
-
-int stage1_mode = 0;
-
-int get_param(int i)
-{
-#ifdef SPAWN_INTERACTIVE
- static int fd = 0;
- char buf[5000];
- char * ptr;
- int nb;
-
- if (fd <= 0) {
- fd = open(interactive_fifo, O_RDONLY);
- if (fd == -1)
- return (stage1_mode & i);
- fcntl(fd, F_SETFL, O_NONBLOCK);
- }
-
- if (fd > 0) {
- if ((nb = read(fd, buf, sizeof(buf))) > 0) {
- buf[nb] = '\0';
- ptr = buf;
- while ((ptr = strstr(ptr, "+ "))) {
- if (!strncmp(ptr+2, "expert", 6)) set_param(MODE_EXPERT);
- if (!strncmp(ptr+2, "rescue", 6)) set_param(MODE_RESCUE);
- ptr++;
- }
- ptr = buf;
- while ((ptr = strstr(ptr, "- "))) {
- if (!strncmp(ptr+2, "expert", 6)) unset_param(MODE_EXPERT);
- if (!strncmp(ptr+2, "rescue", 6)) unset_param(MODE_RESCUE);
- ptr++;
- }
- }
- }
-#endif
-
- return (stage1_mode & i);
-}
-
-char * get_param_valued(char *param_name)
-{
- int i;
- for (i = 0; i < param_number ; i++)
- if (!strcmp(params[i].name, param_name))
- return params[i].value;
-
- return NULL;
-}
-
-void set_param_valued(char *param_name, char *param_value)
-{
- params[param_number].name = param_name;
- params[param_number].value = param_value;
- param_number++;
-}
-
-void set_param(int i)
-{
- stage1_mode |= i;
- if (i == MODE_RESCUE) {
- set_param_valued("special_stage2", "rescue");
- set_param(MODE_SPECIAL_STAGE2);
- }
-}
-
-void unset_param(int i)
-{
- stage1_mode &= ~i;
-}
-
-// warning, many things rely on the fact that:
-// - when failing it returns 0
-// - it stops on first non-digit char
-int charstar_to_int(const char * s)
-{
- int number = 0;
- while (*s && isdigit(*s)) {
- number = (number * 10) + (*s - '0');
- s++;
- }
- return number;
-}
-
-off_t file_size(const char * path)
-{
- struct stat statr;
- if (stat(path, &statr))
- return -1;
- else
- return statr.st_size;
-}
-
-int total_memory(void)
-{
- int value;
-
- /* drakx powered: use /proc/kcore and rounds every 4 Mbytes */
- value = 4 * ((int)((float)file_size("/proc/kcore") / 1024 / 1024 / 4 + 0.5));
- log_message("Total Memory: %d Mbytes", value);
-
- return value;
-}
-
-
-int ramdisk_possible(void)
-{
- if (total_memory() > (IS_RESCUE ? MEM_LIMIT_RESCUE : MEM_LIMIT_RAMDISK))
- return 1;
- else {
- log_message("warning, ramdisk is not possible due to low mem!");
- return 0;
- }
-}
-
-
-enum return_type copy_file(char * from, char * to, void (*callback_func)(int overall))
-{
- FILE * f_from, * f_to;
- size_t quantity __attribute__((aligned(16))), overall = 0;
- char buf[4096] __attribute__((aligned(4096)));
- int ret = RETURN_ERROR;
-
- log_message("copy_file: %s -> %s", from, to);
-
- if (!(f_from = fopen(from, "rb"))) {
- log_perror(from);
- return RETURN_ERROR;
- }
-
- if (!(f_to = fopen(to, "w"))) {
- log_perror(to);
- goto close_from;
- return RETURN_ERROR;
- }
-
- do {
- if ((quantity = fread(buf, 1, sizeof(buf), f_from)) > 0) {
- if (fwrite(buf, 1, quantity, f_to) != quantity) {
- log_message("short write (%s)", strerror(errno));
- goto cleanup;
- }
- }
- if (callback_func) {
- overall += quantity;
- callback_func(overall);
- }
- } while (!feof(f_from) && !ferror(f_from) && !ferror(f_to));
-
- if (ferror(f_from) || ferror(f_to)) {
- log_message("an error occured: %s", strerror(errno));
- goto cleanup;
- }
-
- ret = RETURN_OK;
-
- cleanup:
- fclose(f_to);
- close_from:
- fclose(f_from);
-
- return ret;
-}
-
-static void save_stuff_for_rescue(void)
-{
- copy_file("/etc/resolv.conf", STAGE2_LOCATION "/etc/resolv.conf", NULL);
-}
-
-enum return_type load_ramdisk_fd(int ramdisk_fd, int size)
-{
- BZFILE * st2;
- char * ramdisk = "/dev/ram3"; /* warning, verify that this file exists in the initrd, and that root=/dev/ram3 is actually passed to the kernel at boot time */
- int ram_fd;
- char buffer[32768];
- int z_errnum;
- char * wait_msg = "Loading program into memory...";
- int bytes_read = 0;
- int actually;
- int seems_ok = 0;
-
- st2 = BZ2_bzdopen(ramdisk_fd, "r");
-
- if (!st2) {
- log_message("Opening compressed ramdisk: %s", BZ2_bzerror(st2, &z_errnum));
- stg1_error_message("Could not open compressed ramdisk file.");
- return RETURN_ERROR;
- }
-
- ram_fd = open(ramdisk, O_WRONLY);
- if (ram_fd == -1) {
- log_perror(ramdisk);
- stg1_error_message("Could not open ramdisk device file.");
- return RETURN_ERROR;
- }
-
- init_progression(wait_msg, size);
-
- while ((actually = BZ2_bzread(st2, buffer, sizeof(buffer))) > 0) {
- seems_ok = 1;
- if (write(ram_fd, buffer, actually) != actually) {
- log_perror("writing ramdisk");
- remove_wait_message();
- return RETURN_ERROR;
- }
- update_progression((int)((bytes_read += actually) / RAMDISK_COMPRESSION_RATIO));
- }
-
- if (!seems_ok) {
- log_message("reading compressed ramdisk: %s", BZ2_bzerror(st2, &z_errnum));
- BZ2_bzclose(st2); /* opened by gzdopen, but also closes the associated fd */
- close(ram_fd);
- remove_wait_message();
- stg1_error_message("Could not uncompress second stage ramdisk. "
- "This is probably an hardware error while reading the data. "
- "(this may be caused by a hardware failure or a Linux kernel bug)");
- return RETURN_ERROR;
- }
-
- end_progression();
-
- BZ2_bzclose(st2); /* opened by gzdopen, but also closes the associated fd */
- close(ram_fd);
-
- if (my_mount(ramdisk, STAGE2_LOCATION, "ext2", 1))
- return RETURN_ERROR;
-
- set_param(MODE_RAMDISK);
-
- if (IS_RESCUE) {
- save_stuff_for_rescue();
- if (umount(STAGE2_LOCATION)) {
- log_perror(ramdisk);
- return RETURN_ERROR;
- }
- return RETURN_OK; /* fucksike, I lost several hours wondering why the kernel won't see the rescue if it is alreay mounted */
- }
-
- return RETURN_OK;
-}
-
-
-char * get_ramdisk_realname(void)
-{
- char img_name[500];
- char * stg2_name = get_param_valued("special_stage2");
- char * begin_img = RAMDISK_LOCATION;
- char * end_img = "_stage2.bz2";
-
- if (!stg2_name)
- stg2_name = "mdkinst";
-
- if (IS_RESCUE)
- stg2_name = "rescue";
-
- strcpy(img_name, begin_img);
- strcat(img_name, stg2_name);
- strcat(img_name, end_img);
-
- return strdup(img_name);
-}
-
-
-enum return_type load_ramdisk(void)
-{
- int st2_fd;
- off_t size;
- char img_name[500];
-
- strcpy(img_name, IMAGE_LOCATION);
- strcat(img_name, get_ramdisk_realname());
-
- log_message("trying to load %s as a ramdisk", img_name);
-
- st2_fd = open(img_name, O_RDONLY); /* to be able to see the progression */
-
- if (st2_fd == -1) {
- log_message("open ramdisk file (%s) failed", img_name);
- stg1_error_message("Could not open compressed ramdisk file (%s).", img_name);
- return RETURN_ERROR;
- }
-
- if ((size = file_size(img_name)) == -1)
- return RETURN_ERROR;
- else
- return load_ramdisk_fd(st2_fd, size);
-}
-
-/* pixel's */
-void * memdup(void *src, size_t size)
-{
- void * r;
- r = malloc(size);
- memcpy(r, src, size);
- return r;
-}
-
-
-static char ** my_env = NULL;
-static int env_size = 0;
-
-void handle_env(char ** env)
-{
- char ** ptr = env;
- while (ptr && *ptr) {
- ptr++;
- env_size++;
- }
- my_env = malloc(sizeof(char *) * 100);
- memcpy(my_env, env, sizeof(char *) * (env_size+1));
-}
-
-char ** grab_env(void) {
- return my_env;
-}
-
-void add_to_env(char * name, char * value)
-{
- char tmp[500];
- sprintf(tmp, "%s=%s", name, value);
- my_env[env_size] = strdup(tmp);
- env_size++;
- my_env[env_size] = NULL;
-}
-
-
-char ** list_directory(char * direct)
-{
- char * tmp[50000]; /* in /dev there can be many many files.. */
- int i = 0;
- struct dirent *ep;
- DIR *dp = opendir(direct);
- while (dp && (ep = readdir(dp))) {
- if (strcmp(ep->d_name, ".") && strcmp(ep->d_name, "..")) {
- tmp[i] = strdup(ep->d_name);
- i++;
- }
- }
- if (dp)
- closedir(dp);
- tmp[i] = NULL;
- return memdup(tmp, sizeof(char*) * (i+1));
-}
-
-
-int string_array_length(char ** a)
-{
- int i = 0;
- if (!a)
- return -1;
- while (a && *a) {
- a++;
- i++;
- }
- return i;
-}
-
-int kernel_version(void)
-{
- struct utsname val;
- if (uname(&val)) {
- log_perror("uname failed");
- return -1;
- }
- return charstar_to_int(val.release + 2);
-}
-
-char * floppy_device(void)
-{
- char ** names, ** models;
- my_insmod("floppy", ANY_DRIVER_TYPE, NULL, 0);
- int fd = open("/dev/fd0", O_RDONLY|O_NONBLOCK);
- if (fd != -1) {
- char drivtyp[17];
- if (!ioctl(fd, FDGETDRVTYP, (void *)drivtyp)) {
- struct floppy_drive_struct ds;
- log_message("/dev/fd0 type: %s", drivtyp);
- if (!ioctl(fd, FDPOLLDRVSTAT, &ds)) {
- log_message("\ttrack: %d", ds.track);
- if (ds.track >= 0) {
- close(fd);
- return "/dev/fd0";
- }
- }
- } else {
- log_perror("can't FDGETDRVTYP /dev/fd0");
- }
- close(fd);
- }
- log_message("seems that you don't have a regular floppy drive");
- my_insmod("sd_mod", ANY_DRIVER_TYPE, NULL, 0);
- get_medias(FLOPPY, &names, &models, BUS_ANY);
- if (names && *names)
- return asprintf_("/dev/%s", *names);
- else
- return "/dev/fd0";
-}
-
-char * asprintf_(const char *msg, ...)
-{
- int n;
- char * s;
- va_list arg_ptr;
- va_start(arg_ptr, msg);
- n = vsnprintf(0, 1000000, msg, arg_ptr);
- va_start(arg_ptr, msg);
- if ((s = malloc(n + 1))) {
- vsnprintf(s, n + 1, msg, arg_ptr);
- va_end(arg_ptr);
- return s;
- }
- va_end(arg_ptr);
- return strdup("");
-}
-
-int scall_(int retval, char * msg, char * file, int line)
-{
- char tmp[5000];
- sprintf(tmp, "%s(%s:%d) failed", msg, file, line);
- if (retval)
- log_perror(tmp);
- return retval;
-}
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