+++ /dev/null
---- cramfs-1.1.orig/cramfsck.c 2002-02-22 17:00:42.000000000 -0700
-+++ cramfs-1.1/cramfsck.c 2002-12-21 01:25:17.000000000 -0700
-@@ -51,10 +51,11 @@
- #include <utime.h>
- #include <sys/ioctl.h>
- #define _LINUX_STRING_H_
--#include <linux/fs.h>
--#include <linux/cramfs_fs.h>
-+#include "linux/cramfs_fs.h"
- #include <zlib.h>
-
-+#define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */
-+
- /* Exit codes used by fsck-type programs */
- #define FSCK_OK 0 /* No errors */
- #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
-@@ -75,7 +76,7 @@
- static int opt_verbose = 0; /* 1 = verbose (-v), 2+ = very verbose (-vv) */
- #ifdef INCLUDE_FS_TESTS
- static int opt_extract = 0; /* extract cramfs (-x) */
--static char *extract_dir = "root"; /* extraction directory (-x) */
-+static char *extract_dir = "/"; /* extraction directory (-x) */
- static uid_t euid; /* effective UID */
-
- /* (cramfs_super + start) <= start_dir < end_dir <= start_data <= end_data */
-@@ -155,7 +156,7 @@
- }
-
- if (*length < sizeof(struct cramfs_super)) {
-- die(FSCK_UNCORRECTED, 0, "file length too short");
-+ die(FSCK_UNCORRECTED, 0, "filesystem smaller than a cramfs superblock!");
- }
-
- /* find superblock */
-@@ -190,7 +191,8 @@
- die(FSCK_UNCORRECTED, 0, "zero file count");
- }
- if (*length < super.size) {
-- die(FSCK_UNCORRECTED, 0, "file length too short");
-+ die(FSCK_UNCORRECTED, 0, "file length too short, %lu is smaller than %lu",
-+ *length, super.size);
- }
- else if (*length > super.size) {
- fprintf(stderr, "warning: file extends past end of filesystem\n");
-@@ -267,11 +269,11 @@
- #ifdef INCLUDE_FS_TESTS
- static void print_node(char type, struct cramfs_inode *i, char *name)
- {
-- char info[10];
-+ char info[11];
-
- if (S_ISCHR(i->mode) || (S_ISBLK(i->mode))) {
- /* major/minor numbers can be as high as 2^12 or 4096 */
-- snprintf(info, 10, "%4d,%4d", major(i->size), minor(i->size));
-+ snprintf(info, 11, "%4d,%4d", major(i->size), minor(i->size));
- }
- else {
- /* size be as high as 2^24 or 16777216 */
-@@ -445,8 +447,10 @@
- }
- /* TODO: Do we need to check end_dir for empty case? */
- memcpy(newpath, path, pathlen);
-- newpath[pathlen] = '/';
-- pathlen++;
-+ if (pathlen > 1) {
-+ newpath[pathlen] = '/';
-+ pathlen++;
-+ }
- if (opt_verbose) {
- print_node('d', i, path);
- }
---- cramfs-1.1.orig/device_table.txt 1969-12-31 17:00:00.000000000 -0700
-+++ cramfs-1.1/device_table.txt 2003-01-01 05:13:44.000000000 -0700
-@@ -0,0 +1,129 @@
-+# When building a target filesystem, it is desirable to not have to
-+# become root and then run 'mknod' a thousand times. Using a device
-+# table you can create device nodes and directories "on the fly".
-+#
-+# This is a sample device table file for use with mkcramfs. You can
-+# do all sorts of interesting things with a device table file. For
-+# example, if you want to adjust the permissions on a particular file
-+# you can just add an entry like:
-+# /sbin/foobar f 2755 0 0 - - - - -
-+# and (assuming the file /sbin/foobar exists) it will be made setuid
-+# root (regardless of what its permissions are on the host filesystem.
-+# Furthermore, you can use a single table entry to create a many device
-+# minors. For example, if I wanted to create /dev/hda and /dev/hda[0-15]
-+# I could just use the following two table entries:
-+# /dev/hda b 640 0 0 3 0 0 0 -
-+# /dev/hda b 640 0 0 3 1 1 1 15
-+#
-+# Device table entries take the form of:
-+# <name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
-+# where name is the file name, type can be one of:
-+# f A regular file
-+# d Directory
-+# c Character special device file
-+# b Block special device file
-+# p Fifo (named pipe)
-+# uid is the user id for the target file, gid is the group id for the
-+# target file. The rest of the entries (major, minor, etc) apply only
-+# to device special files.
-+
-+# Have fun
-+# -Erik Andersen <andersen@codepoet.org>
-+#
-+
-+#<name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
-+/dev d 755 0 0 - - - - -
-+/dev/mem c 640 0 0 1 1 0 0 -
-+/dev/kmem c 640 0 0 1 2 0 0 -
-+/dev/null c 640 0 0 1 3 0 0 -
-+/dev/zero c 640 0 0 1 5 0 0 -
-+/dev/random c 640 0 0 1 8 0 0 -
-+/dev/urandom c 640 0 0 1 9 0 0 -
-+/dev/tty c 666 0 0 5 0 0 0 -
-+/dev/tty c 666 0 0 4 0 0 1 6
-+/dev/console c 640 0 0 5 1 0 0 -
-+/dev/ram b 640 0 0 1 1 0 0 -
-+/dev/ram b 640 0 0 1 0 0 1 4
-+/dev/loop b 640 0 0 7 0 0 1 2
-+/dev/ptmx c 666 0 0 5 2 0 0 -
-+#/dev/ttyS c 640 0 0 4 64 0 1 4
-+#/dev/psaux c 640 0 0 10 1 0 0 -
-+#/dev/rtc c 640 0 0 10 135 0 0 -
-+
-+# Adjust permissions on some normal files
-+#/etc/shadow f 600 0 0 - - - - -
-+#/bin/tinylogin f 4755 0 0 - - - - -
-+
-+# User-mode Linux stuff
-+/dev/ubda b 640 0 0 98 0 0 0 -
-+/dev/ubda b 640 0 0 98 1 1 1 15
-+
-+# IDE Devices
-+/dev/hda b 640 0 0 3 0 0 0 -
-+/dev/hda b 640 0 0 3 1 1 1 15
-+/dev/hdb b 640 0 0 3 64 0 0 -
-+/dev/hdb b 640 0 0 3 65 1 1 15
-+#/dev/hdc b 640 0 0 22 0 0 0 -
-+#/dev/hdc b 640 0 0 22 1 1 1 15
-+#/dev/hdd b 640 0 0 22 64 0 0 -
-+#/dev/hdd b 640 0 0 22 65 1 1 15
-+#/dev/hde b 640 0 0 33 0 0 0 -
-+#/dev/hde b 640 0 0 33 1 1 1 15
-+#/dev/hdf b 640 0 0 33 64 0 0 -
-+#/dev/hdf b 640 0 0 33 65 1 1 15
-+#/dev/hdg b 640 0 0 34 0 0 0 -
-+#/dev/hdg b 640 0 0 34 1 1 1 15
-+#/dev/hdh b 640 0 0 34 64 0 0 -
-+#/dev/hdh b 640 0 0 34 65 1 1 15
-+
-+# SCSI Devices
-+#/dev/sda b 640 0 0 8 0 0 0 -
-+#/dev/sda b 640 0 0 8 1 1 1 15
-+#/dev/sdb b 640 0 0 8 16 0 0 -
-+#/dev/sdb b 640 0 0 8 17 1 1 15
-+#/dev/sdc b 640 0 0 8 32 0 0 -
-+#/dev/sdc b 640 0 0 8 33 1 1 15
-+#/dev/sdd b 640 0 0 8 48 0 0 -
-+#/dev/sdd b 640 0 0 8 49 1 1 15
-+#/dev/sde b 640 0 0 8 64 0 0 -
-+#/dev/sde b 640 0 0 8 65 1 1 15
-+#/dev/sdf b 640 0 0 8 80 0 0 -
-+#/dev/sdf b 640 0 0 8 81 1 1 15
-+#/dev/sdg b 640 0 0 8 96 0 0 -
-+#/dev/sdg b 640 0 0 8 97 1 1 15
-+#/dev/sdh b 640 0 0 8 112 0 0 -
-+#/dev/sdh b 640 0 0 8 113 1 1 15
-+#/dev/sg c 640 0 0 21 0 0 1 15
-+#/dev/scd b 640 0 0 11 0 0 1 15
-+#/dev/st c 640 0 0 9 0 0 1 8
-+#/dev/nst c 640 0 0 9 128 0 1 8
-+#/dev/st c 640 0 0 9 32 1 1 4
-+#/dev/st c 640 0 0 9 64 1 1 4
-+#/dev/st c 640 0 0 9 96 1 1 4
-+
-+# Floppy disk devices
-+#/dev/fd b 640 0 0 2 0 0 1 2
-+#/dev/fd0d360 b 640 0 0 2 4 0 0 -
-+#/dev/fd1d360 b 640 0 0 2 5 0 0 -
-+#/dev/fd0h1200 b 640 0 0 2 8 0 0 -
-+#/dev/fd1h1200 b 640 0 0 2 9 0 0 -
-+#/dev/fd0u1440 b 640 0 0 2 28 0 0 -
-+#/dev/fd1u1440 b 640 0 0 2 29 0 0 -
-+#/dev/fd0u2880 b 640 0 0 2 32 0 0 -
-+#/dev/fd1u2880 b 640 0 0 2 33 0 0 -
-+
-+# All the proprietary cdrom devices in the world
-+#/dev/aztcd b 640 0 0 29 0 0 0 -
-+#/dev/bpcd b 640 0 0 41 0 0 0 -
-+#/dev/capi20 c 640 0 0 68 0 0 1 2
-+#/dev/cdu31a b 640 0 0 15 0 0 0 -
-+#/dev/cdu535 b 640 0 0 24 0 0 0 -
-+#/dev/cm206cd b 640 0 0 32 0 0 0 -
-+#/dev/sjcd b 640 0 0 18 0 0 0 -
-+#/dev/sonycd b 640 0 0 15 0 0 0 -
-+#/dev/gscd b 640 0 0 16 0 0 0 -
-+#/dev/sbpcd b 640 0 0 25 0 0 0 -
-+#/dev/sbpcd b 640 0 0 25 0 0 1 4
-+#/dev/mcd b 640 0 0 23 0 0 0 -
-+#/dev/optcd b 640 0 0 17 0 0 0 -
-+
---- cramfs-1.1.orig/mkcramfs.c 2002-02-20 01:03:32.000000000 -0700
-+++ cramfs-1.1/mkcramfs.c 2002-12-21 01:25:17.000000000 -0700
-@@ -1,3 +1,4 @@
-+/* vi: set sw=8 ts=8: */
- /*
- * mkcramfs - make a cramfs file system
- *
-@@ -16,12 +17,21 @@
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *
-+ * Added device table support (code taken from mkfs.jffs2.c, credit to
-+ * Erik Andersen <andersen@codepoet.org>) as well as an option to squash
-+ * permissions. - Russ Dill <Russ.Dill@asu.edu> September 2002
-+ *
-+ * Reworked, cleaned up, and updated for cramfs-1.1, December 2002
-+ * - Erik Andersen <andersen@codepoet.org>
-+ *
- */
-
- /*
- * If you change the disk format of cramfs, please update fs/cramfs/README.
- */
-
-+#define _GNU_SOURCE
- #include <sys/types.h>
- #include <stdio.h>
- #include <sys/stat.h>
-@@ -33,8 +43,15 @@
- #include <errno.h>
- #include <string.h>
- #include <stdarg.h>
-+#include <libgen.h>
-+#include <ctype.h>
-+#include <assert.h>
-+#include <getopt.h>
- #include <linux/cramfs_fs.h>
- #include <zlib.h>
-+#ifdef DMALLOC
-+#include <dmalloc.h>
-+#endif
-
- /* Exit codes used by mkfs-type programs */
- #define MKFS_OK 0 /* No errors */
-@@ -71,11 +88,17 @@
- + (1 << CRAMFS_SIZE_WIDTH) - 1 /* filesize */ \
- + (1 << CRAMFS_SIZE_WIDTH) * 4 / PAGE_CACHE_SIZE /* block pointers */ )
-
-+
-+/* The kernel assumes PAGE_CACHE_SIZE as block size. */
-+#define PAGE_CACHE_SIZE (4096)
-+
-+
- static const char *progname = "mkcramfs";
- static unsigned int blksize = PAGE_CACHE_SIZE;
- static long total_blocks = 0, total_nodes = 1; /* pre-count the root node */
- static int image_length = 0;
-
-+
- /*
- * If opt_holes is set, then mkcramfs can create explicit holes in the
- * data, which saves 26 bytes per hole (which is a lot smaller a
-@@ -91,10 +114,12 @@
- static int opt_holes = 0;
- static int opt_pad = 0;
- static int opt_verbose = 0;
-+static int opt_squash = 0;
- static char *opt_image = NULL;
- static char *opt_name = NULL;
-
- static int warn_dev, warn_gid, warn_namelen, warn_skip, warn_size, warn_uid;
-+static const char *const memory_exhausted = "memory exhausted";
-
- /* In-core version of inode / directory entry. */
- struct entry {
-@@ -123,7 +148,7 @@
- {
- FILE *stream = status ? stderr : stdout;
-
-- fprintf(stream, "usage: %s [-h] [-e edition] [-i file] [-n name] dirname outfile\n"
-+ fprintf(stream, "usage: %s [-h] [-e edition] [-i file] [-n name] [-D file] dirname outfile\n"
- " -h print this help\n"
- " -E make all warnings errors (non-zero exit status)\n"
- " -e edition set edition number (part of fsid)\n"
-@@ -133,39 +158,157 @@
- " -s sort directory entries (old option, ignored)\n"
- " -v be more verbose\n"
- " -z make explicit holes (requires >= 2.3.39)\n"
-- " dirname root of the directory tree to be compressed\n"
-+ " -D Use the named FILE as a device table file\n"
-+ " -q squash permissions (make everything owned by root)\n"
-+ " dirname root of the filesystem to be compressed\n"
- " outfile output file\n", progname, PAD_SIZE);
-
- exit(status);
- }
-
--static void die(int status, int syserr, const char *fmt, ...)
-+static void verror_msg(const char *s, va_list p)
-+{
-+ fflush(stdout);
-+ fprintf(stderr, "mkcramfs: ");
-+ vfprintf(stderr, s, p);
-+}
-+
-+static void vperror_msg(const char *s, va_list p)
-+{
-+ int err = errno;
-+
-+ if (s == 0)
-+ s = "";
-+ verror_msg(s, p);
-+ if (*s)
-+ s = ": ";
-+ fprintf(stderr, "%s%s\n", s, strerror(err));
-+}
-+
-+static void perror_msg(const char *s, ...)
-+{
-+ va_list p;
-+
-+ va_start(p, s);
-+ vperror_msg(s, p);
-+ va_end(p);
-+}
-+
-+static void error_msg_and_die(const char *s, ...)
-+{
-+ va_list p;
-+
-+ va_start(p, s);
-+ verror_msg(s, p);
-+ va_end(p);
-+ putc('\n', stderr);
-+ exit(MKFS_ERROR);
-+}
-+
-+static void perror_msg_and_die(const char *s, ...)
-+{
-+ va_list p;
-+
-+ va_start(p, s);
-+ vperror_msg(s, p);
-+ va_end(p);
-+ exit(MKFS_ERROR);
-+}
-+#ifndef DMALLOC
-+extern char *xstrdup(const char *s)
-+{
-+ char *t;
-+
-+ if (s == NULL)
-+ return NULL;
-+ t = strdup(s);
-+ if (t == NULL)
-+ error_msg_and_die(memory_exhausted);
-+ return t;
-+}
-+
-+extern void *xmalloc(size_t size)
-+{
-+ void *ptr = malloc(size);
-+
-+ if (ptr == NULL && size != 0)
-+ error_msg_and_die(memory_exhausted);
-+ return ptr;
-+}
-+
-+extern void *xcalloc(size_t nmemb, size_t size)
-+{
-+ void *ptr = calloc(nmemb, size);
-+
-+ if (ptr == NULL && nmemb != 0 && size != 0)
-+ error_msg_and_die(memory_exhausted);
-+ return ptr;
-+}
-+
-+extern void *xrealloc(void *ptr, size_t size)
-+{
-+ ptr = realloc(ptr, size);
-+ if (ptr == NULL && size != 0)
-+ error_msg_and_die(memory_exhausted);
-+ return ptr;
-+}
-+#endif
-+
-+static FILE *xfopen(const char *path, const char *mode)
- {
-- va_list arg_ptr;
-- int save = errno;
-+ FILE *fp;
-+
-+ if ((fp = fopen(path, mode)) == NULL)
-+ perror_msg_and_die("%s", path);
-+ return fp;
-+}
-
-- fflush(0);
-- va_start(arg_ptr, fmt);
-- fprintf(stderr, "%s: ", progname);
-- vfprintf(stderr, fmt, arg_ptr);
-- if (syserr) {
-- fprintf(stderr, ": %s", strerror(save));
-+extern int xopen(const char *pathname, int flags, mode_t mode)
-+{
-+ int ret;
-+
-+ if (flags & O_CREAT)
-+ ret = open(pathname, flags, mode);
-+ else
-+ ret = open(pathname, flags);
-+ if (ret == -1) {
-+ perror_msg_and_die("%s", pathname);
- }
-- fprintf(stderr, "\n");
-- va_end(arg_ptr);
-- exit(status);
-+ return ret;
- }
-
-+extern char *xreadlink(const char *path)
-+{
-+ static const int GROWBY = 80; /* how large we will grow strings by */
-+
-+ char *buf = NULL;
-+ int bufsize = 0, readsize = 0;
-+
-+ do {
-+ buf = xrealloc(buf, bufsize += GROWBY);
-+ readsize = readlink(path, buf, bufsize); /* 1st try */
-+ if (readsize == -1) {
-+ perror_msg("%s:%s", progname, path);
-+ return NULL;
-+ }
-+ }
-+ while (bufsize < readsize + 1);
-+
-+ buf[readsize] = '\0';
-+
-+ return buf;
-+}
-+
- static void map_entry(struct entry *entry)
- {
- if (entry->path) {
- entry->fd = open(entry->path, O_RDONLY);
- if (entry->fd < 0) {
-- die(MKFS_ERROR, 1, "open failed: %s", entry->path);
-+ error_msg_and_die("open failed: %s", entry->path);
- }
- entry->uncompressed = mmap(NULL, entry->size, PROT_READ, MAP_PRIVATE, entry->fd, 0);
- if (entry->uncompressed == MAP_FAILED) {
-- die(MKFS_ERROR, 1, "mmap failed: %s", entry->path);
-+ error_msg_and_die("mmap failed: %s", entry->path);
- }
- }
- }
-@@ -174,8 +317,9 @@
- {
- if (entry->path) {
- if (munmap(entry->uncompressed, entry->size) < 0) {
-- die(MKFS_ERROR, 1, "munmap failed: %s", entry->path);
-+ error_msg_and_die("munmap failed: %s", entry->path);
- }
-+ entry->uncompressed=NULL;
- close(entry->fd);
- }
- }
-@@ -204,7 +348,8 @@
- find_identical_file(orig->next, newfile));
- }
-
--static void eliminate_doubles(struct entry *root, struct entry *orig) {
-+static void eliminate_doubles(struct entry *root, struct entry *orig)
-+{
- if (orig) {
- if (orig->size && (orig->path || orig->uncompressed))
- find_identical_file(root, orig);
-@@ -232,10 +377,7 @@
-
- /* Set up the path. */
- /* TODO: Reuse the parent's buffer to save memcpy'ing and duplication. */
-- path = malloc(len + 1 + MAX_INPUT_NAMELEN + 1);
-- if (!path) {
-- die(MKFS_ERROR, 1, "malloc failed");
-- }
-+ path = xmalloc(len + 1 + MAX_INPUT_NAMELEN + 1);
- memcpy(path, name, len);
- endpath = path + len;
- *endpath = '/';
-@@ -245,7 +387,7 @@
- dircount = scandir(name, &dirlist, 0, cramsort);
-
- if (dircount < 0) {
-- die(MKFS_ERROR, 1, "scandir failed: %s", name);
-+ error_msg_and_die("scandir failed: %s", name);
- }
-
- /* process directory */
-@@ -269,25 +411,20 @@
- }
- namelen = strlen(dirent->d_name);
- if (namelen > MAX_INPUT_NAMELEN) {
-- die(MKFS_ERROR, 0,
-- "very long (%u bytes) filename found: %s\n"
-- "please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile",
-+ error_msg_and_die(
-+ "Very long (%u bytes) filename `%s' found.\n"
-+ " Please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile. Exiting.\n",
- namelen, dirent->d_name);
- }
- memcpy(endpath, dirent->d_name, namelen + 1);
-
- if (lstat(path, &st) < 0) {
-+ perror(endpath);
- warn_skip = 1;
- continue;
- }
-- entry = calloc(1, sizeof(struct entry));
-- if (!entry) {
-- die(MKFS_ERROR, 1, "calloc failed");
-- }
-- entry->name = strdup(dirent->d_name);
-- if (!entry->name) {
-- die(MKFS_ERROR, 1, "strdup failed");
-- }
-+ entry = xcalloc(1, sizeof(struct entry));
-+ entry->name = xstrdup(dirent->d_name);
- /* truncate multi-byte UTF-8 filenames on character boundary */
- if (namelen > CRAMFS_MAXPATHLEN) {
- namelen = CRAMFS_MAXPATHLEN;
-@@ -297,24 +434,25 @@
- namelen--;
- /* are we reasonably certain it was UTF-8 ? */
- if (entry->name[namelen] < 0x80 || !namelen) {
-- die(MKFS_ERROR, 0, "cannot truncate filenames not encoded in UTF-8");
-+ error_msg_and_die("cannot truncate filenames not encoded in UTF-8");
- }
- }
- entry->name[namelen] = '\0';
- }
- entry->mode = st.st_mode;
- entry->size = st.st_size;
-- entry->uid = st.st_uid;
-+ entry->uid = opt_squash ? 0 : st.st_uid;
- if (entry->uid >= 1 << CRAMFS_UID_WIDTH)
- warn_uid = 1;
-- entry->gid = st.st_gid;
-- if (entry->gid >= 1 << CRAMFS_GID_WIDTH)
-+ entry->gid = opt_squash ? 0 : st.st_gid;
-+ if (entry->gid >= 1 << CRAMFS_GID_WIDTH) {
- /* TODO: We ought to replace with a default
- gid instead of truncating; otherwise there
- are security problems. Maybe mode should
- be &= ~070. Same goes for uid once Linux
- supports >16-bit uids. */
- warn_gid = 1;
-+ }
- size = sizeof(struct cramfs_inode) + ((namelen + 3) & ~3);
- *fslen_ub += size;
- if (S_ISDIR(st.st_mode)) {
-@@ -325,21 +463,15 @@
- warn_skip = 1;
- continue;
- }
-- entry->path = strdup(path);
-- if (!entry->path) {
-- die(MKFS_ERROR, 1, "strdup failed");
-- }
-+ entry->path = xstrdup(path);
- if ((entry->size >= 1 << CRAMFS_SIZE_WIDTH)) {
- warn_size = 1;
- entry->size = (1 << CRAMFS_SIZE_WIDTH) - 1;
- }
- }
- } else if (S_ISLNK(st.st_mode)) {
-- entry->uncompressed = malloc(entry->size);
-+ entry->uncompressed = xreadlink(path);
- if (!entry->uncompressed) {
-- die(MKFS_ERROR, 1, "malloc failed");
-- }
-- if (readlink(path, entry->uncompressed, entry->size) < 0) {
- warn_skip = 1;
- continue;
- }
-@@ -351,7 +483,7 @@
- if (entry->size & -(1<<CRAMFS_SIZE_WIDTH))
- warn_dev = 1;
- } else {
-- die(MKFS_ERROR, 0, "bogus file type: %s", entry->name);
-+ error_msg_and_die("bogus file type: %s", entry->name);
- }
-
- if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
-@@ -378,7 +510,9 @@
- struct cramfs_super *super = (struct cramfs_super *) base;
- unsigned int offset = sizeof(struct cramfs_super) + image_length;
-
-- offset += opt_pad; /* 0 if no padding */
-+ if (opt_pad) {
-+ offset += opt_pad; /* 0 if no padding */
-+ }
-
- super->magic = CRAMFS_MAGIC;
- super->flags = CRAMFS_FLAG_FSID_VERSION_2 | CRAMFS_FLAG_SORTED_DIRS;
-@@ -414,10 +548,10 @@
- struct cramfs_inode *inode = (struct cramfs_inode *) (base + entry->dir_offset);
-
- if ((offset & 3) != 0) {
-- die(MKFS_ERROR, 0, "illegal offset of %lu bytes", offset);
-+ error_msg_and_die("illegal offset of %lu bytes", offset);
- }
- if (offset >= (1 << (2 + CRAMFS_OFFSET_WIDTH))) {
-- die(MKFS_ERROR, 0, "filesystem too big");
-+ error_msg_and_die("filesystem too big");
- }
- inode->offset = (offset >> 2);
- }
-@@ -429,7 +563,7 @@
- */
- static void print_node(struct entry *e)
- {
-- char info[10];
-+ char info[12];
- char type = '?';
-
- if (S_ISREG(e->mode)) type = 'f';
-@@ -442,11 +576,11 @@
-
- if (S_ISCHR(e->mode) || (S_ISBLK(e->mode))) {
- /* major/minor numbers can be as high as 2^12 or 4096 */
-- snprintf(info, 10, "%4d,%4d", major(e->size), minor(e->size));
-+ snprintf(info, 11, "%4d,%4d", major(e->size), minor(e->size));
- }
- else {
- /* size be as high as 2^24 or 16777216 */
-- snprintf(info, 10, "%9d", e->size);
-+ snprintf(info, 11, "%9d", e->size);
- }
-
- printf("%c %04o %s %5d:%-3d %s\n",
-@@ -462,17 +596,9 @@
- {
- int stack_entries = 0;
- int stack_size = 64;
-- struct entry **entry_stack;
--
-- entry_stack = malloc(stack_size * sizeof(struct entry *));
-- if (!entry_stack) {
-- die(MKFS_ERROR, 1, "malloc failed");
-- }
--
-- if (opt_verbose) {
-- printf("root:\n");
-- }
-+ struct entry **entry_stack = NULL;
-
-+ entry_stack = xmalloc(stack_size * sizeof(struct entry *));
- for (;;) {
- int dir_start = stack_entries;
- while (entry) {
-@@ -506,10 +632,7 @@
- if (entry->child) {
- if (stack_entries >= stack_size) {
- stack_size *= 2;
-- entry_stack = realloc(entry_stack, stack_size * sizeof(struct entry *));
-- if (!entry_stack) {
-- die(MKFS_ERROR, 1, "realloc failed");
-- }
-+ entry_stack = xrealloc(entry_stack, stack_size * sizeof(struct entry *));
- }
- entry_stack[stack_entries] = entry;
- stack_entries++;
-@@ -543,7 +666,7 @@
-
- set_data_offset(entry, base, offset);
- if (opt_verbose) {
-- printf("%s:\n", entry->name);
-+ printf("'%s':\n", entry->name);
- }
- entry = entry->child;
- }
-@@ -553,16 +676,21 @@
-
- static int is_zero(char const *begin, unsigned len)
- {
-- /* Returns non-zero iff the first LEN bytes from BEGIN are all NULs. */
-- return (len-- == 0 ||
-- (begin[0] == '\0' &&
-- (len-- == 0 ||
-- (begin[1] == '\0' &&
-- (len-- == 0 ||
-- (begin[2] == '\0' &&
-- (len-- == 0 ||
-- (begin[3] == '\0' &&
-- memcmp(begin, begin + 4, len) == 0))))))));
-+ if (opt_holes)
-+ /* Returns non-zero iff the first LEN bytes from BEGIN are
-+ all NULs. */
-+ return (len-- == 0 ||
-+ (begin[0] == '\0' &&
-+ (len-- == 0 ||
-+ (begin[1] == '\0' &&
-+ (len-- == 0 ||
-+ (begin[2] == '\0' &&
-+ (len-- == 0 ||
-+ (begin[3] == '\0' &&
-+ memcmp(begin, begin + 4, len) == 0))))))));
-+ else
-+ /* Never create holes. */
-+ return 0;
- }
-
- /*
-@@ -575,37 +703,34 @@
- * Note that size > 0, as a zero-sized file wouldn't ever
- * have gotten here in the first place.
- */
--static unsigned int do_compress(char *base, unsigned int offset, char const *name, char *uncompressed, unsigned int size)
-+static unsigned int do_compress(char *base, unsigned int offset, struct entry *entry)
- {
-+ unsigned int size = entry->size;
- unsigned long original_size = size;
- unsigned long original_offset = offset;
- unsigned long new_size;
- unsigned long blocks = (size - 1) / blksize + 1;
- unsigned long curr = offset + 4 * blocks;
- int change;
-+ char *uncompressed = entry->uncompressed;
-
-- total_blocks += blocks;
-+ total_blocks += blocks;
-
- do {
- unsigned long len = 2 * blksize;
- unsigned int input = size;
-- int err;
--
- if (input > blksize)
- input = blksize;
- size -= input;
-- if (!(opt_holes && is_zero (uncompressed, input))) {
-- err = compress2(base + curr, &len, uncompressed, input, Z_BEST_COMPRESSION);
-- if (err != Z_OK) {
-- die(MKFS_ERROR, 0, "compression error: %s", zError(err));
-- }
-+ if (!is_zero (uncompressed, input)) {
-+ compress(base + curr, &len, uncompressed, input);
- curr += len;
- }
- uncompressed += input;
-
- if (len > blksize*2) {
- /* (I don't think this can happen with zlib.) */
-- die(MKFS_ERROR, 0, "AIEEE: block \"compressed\" to > 2*blocklength (%ld)", len);
-+ error_msg_and_die("AIEEE: block \"compressed\" to > 2*blocklength (%ld)\n", len);
- }
-
- *(u32 *) (base + offset) = curr;
-@@ -618,10 +743,12 @@
- st_blocks * 512. But if you say that then perhaps
- administrative data should also be included in both. */
- change = new_size - original_size;
-- if (opt_verbose > 1) {
-- printf("%6.2f%% (%+d bytes)\t%s\n",
-- (change * 100) / (double) original_size, change, name);
-+#if 0
-+ if (opt_verbose) {
-+ printf("%6.2f%% (%+d bytes)\t%s\n",
-+ (change * 100) / (double) original_size, change, entry->name);
- }
-+#endif
-
- return curr;
- }
-@@ -644,7 +771,7 @@
- set_data_offset(entry, base, offset);
- entry->offset = offset;
- map_entry(entry);
-- offset = do_compress(base, offset, entry->name, entry->uncompressed, entry->size);
-+ offset = do_compress(base, offset, entry);
- unmap_entry(entry);
- }
- }
-@@ -660,13 +787,10 @@
- int fd;
- char *buf;
-
-- fd = open(file, O_RDONLY);
-- if (fd < 0) {
-- die(MKFS_ERROR, 1, "open failed: %s", file);
-- }
-+ fd = xopen(file, O_RDONLY, 0);
- buf = mmap(NULL, image_length, PROT_READ, MAP_PRIVATE, fd, 0);
- if (buf == MAP_FAILED) {
-- die(MKFS_ERROR, 1, "mmap failed");
-+ error_msg_and_die("mmap failed");
- }
- memcpy(base + offset, buf, image_length);
- munmap(buf, image_length);
-@@ -679,6 +803,328 @@
- return (offset + image_length);
- }
-
-+static struct entry *find_filesystem_entry(struct entry *dir, char *name, mode_t type)
-+{
-+ struct entry *e = dir;
-+
-+ if (S_ISDIR(dir->mode)) {
-+ e = dir->child;
-+ }
-+ while (e) {
-+ /* Only bother to do the expensive strcmp on matching file types */
-+ if (type == (e->mode & S_IFMT) && e->name) {
-+ if (S_ISDIR(e->mode)) {
-+ int len = strlen(e->name);
-+
-+ /* Check if we are a parent of the correct path */
-+ if (strncmp(e->name, name, len) == 0) {
-+ /* Is this an _exact_ match? */
-+ if (strcmp(name, e->name) == 0) {
-+ return (e);
-+ }
-+ /* Looks like we found a parent of the correct path */
-+ if (name[len] == '/') {
-+ if (e->child) {
-+ return (find_filesystem_entry (e, name + len + 1, type));
-+ } else {
-+ return NULL;
-+ }
-+ }
-+ }
-+ } else {
-+ if (strcmp(name, e->name) == 0) {
-+ return (e);
-+ }
-+ }
-+ }
-+ e = e->next;
-+ }
-+ return (NULL);
-+}
-+
-+void modify_entry(char *full_path, unsigned long uid, unsigned long gid,
-+ unsigned long mode, unsigned long rdev, struct entry *root, loff_t *fslen_ub)
-+{
-+ char *name, *path, *full;
-+ struct entry *curr, *parent, *entry, *prev;
-+
-+ full = xstrdup(full_path);
-+ path = xstrdup(dirname(full));
-+ name = full_path + strlen(path) + 1;
-+ free(full);
-+ if (strcmp(path, "/") == 0) {
-+ parent = root;
-+ name = full_path + 1;
-+ } else {
-+ if (!(parent = find_filesystem_entry(root, path+1, S_IFDIR)))
-+ error_msg_and_die("%s/%s: could not find parent\n", path, name);
-+ }
-+ if ((entry = find_filesystem_entry(parent, name, (mode & S_IFMT)))) {
-+ /* its there, just modify permissions */
-+ entry->mode = mode;
-+ entry->uid = uid;
-+ entry->gid = gid;
-+ } else { /* make a new entry */
-+
-+ /* code partially replicated from parse_directory() */
-+ size_t namelen;
-+ if (S_ISREG(mode)) {
-+ error_msg_and_die("%s: regular file from device_table file must exist on disk!", full_path);
-+ }
-+
-+ namelen = strlen(name);
-+ if (namelen > MAX_INPUT_NAMELEN) {
-+ error_msg_and_die(
-+ "Very long (%u bytes) filename `%s' found.\n"
-+ " Please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile. Exiting.\n",
-+ namelen, name);
-+ }
-+ entry = xcalloc(1, sizeof(struct entry));
-+ entry->name = xstrdup(name);
-+ /* truncate multi-byte UTF-8 filenames on character boundary */
-+ if (namelen > CRAMFS_MAXPATHLEN) {
-+ namelen = CRAMFS_MAXPATHLEN;
-+ warn_namelen = 1;
-+ /* the first lost byte must not be a trail byte */
-+ while ((entry->name[namelen] & 0xc0) == 0x80) {
-+ namelen--;
-+ /* are we reasonably certain it was UTF-8 ? */
-+ if (entry->name[namelen] < 0x80 || !namelen) {
-+ error_msg_and_die("cannot truncate filenames not encoded in UTF-8");
-+ }
-+ }
-+ entry->name[namelen] = '\0';
-+ }
-+ entry->mode = mode;
-+ entry->uid = uid;
-+ entry->gid = gid;
-+ entry->size = 0;
-+ if (S_ISBLK(mode) || S_ISCHR(mode)) {
-+ entry->size = rdev;
-+ if (entry->size & -(1<<CRAMFS_SIZE_WIDTH))
-+ warn_dev = 1;
-+ }
-+
-+ /* ok, now we have to backup and correct the size of all the entries above us */
-+ *fslen_ub += sizeof(struct cramfs_inode) + ((namelen + 3) & ~3);
-+ parent->size += sizeof(struct cramfs_inode) + ((namelen + 3) & ~3);
-+
-+ /* alright, time to link us in */
-+ curr = parent->child;
-+ prev = NULL;
-+ while (curr && strcmp(name, curr->name) > 0) {
-+ prev = curr;
-+ curr = curr->next;
-+ }
-+ if (!prev) parent->child = entry;
-+ else prev->next = entry;
-+ entry->next = curr;
-+ entry->child = NULL;
-+ }
-+ if (entry->uid >= 1 << CRAMFS_UID_WIDTH)
-+ warn_uid = 1;
-+ if (entry->gid >= 1 << CRAMFS_GID_WIDTH) {
-+ /* TODO: We ought to replace with a default
-+ gid instead of truncating; otherwise there
-+ are security problems. Maybe mode should
-+ be &= ~070. Same goes for uid once Linux
-+ supports >16-bit uids. */
-+ warn_gid = 1;
-+ }
-+ free(path);
-+}
-+
-+/* the GNU C library has a wonderful scanf("%as", string) which will
-+ allocate the string with the right size, good to avoid buffer overruns.
-+ the following macros use it if available or use a hacky workaround...
-+ */
-+
-+#ifdef __GNUC__
-+#define SCANF_PREFIX "a"
-+#define SCANF_STRING(s) (&s)
-+#define GETCWD_SIZE 0
-+#else
-+#define SCANF_PREFIX "511"
-+#define SCANF_STRING(s) (s = xmalloc(512))
-+#define GETCWD_SIZE -1
-+inline int snprintf(char *str, size_t n, const char *fmt, ...)
-+{
-+ int ret;
-+ va_list ap;
-+
-+ va_start(ap, fmt);
-+ ret = vsprintf(str, fmt, ap);
-+ va_end(ap);
-+ return ret;
-+}
-+#endif
-+
-+/* device table entries take the form of:
-+ <path> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
-+ /dev/mem c 640 0 0 1 1 0 0 -
-+
-+ type can be one of:
-+ f A regular file
-+ d Directory
-+ c Character special device file
-+ b Block special device file
-+ p Fifo (named pipe)
-+
-+ I don't bother with symlinks (permissions are irrelevant), hard
-+ links (special cases of regular files), or sockets (why bother).
-+
-+ Regular files must exist in the target root directory. If a char,
-+ block, fifo, or directory does not exist, it will be created.
-+*/
-+
-+static int interpret_table_entry(char *line, struct entry *root, loff_t *fslen_ub)
-+{
-+ char type, *name = NULL;
-+ unsigned long mode = 0755, uid = 0, gid = 0, major = 0, minor = 0;
-+ unsigned long start = 0, increment = 1, count = 0;
-+
-+ if (sscanf (line, "%" SCANF_PREFIX "s %c %lo %lu %lu %lu %lu %lu %lu %lu",
-+ SCANF_STRING(name), &type, &mode, &uid, &gid, &major, &minor,
-+ &start, &increment, &count) < 0)
-+ {
-+ return 1;
-+ }
-+
-+ if (!strcmp(name, "/")) {
-+ error_msg_and_die("Device table entries require absolute paths");
-+ }
-+
-+ switch (type) {
-+ case 'd':
-+ mode |= S_IFDIR;
-+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub);
-+ break;
-+ case 'f':
-+ mode |= S_IFREG;
-+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub);
-+ break;
-+ case 'p':
-+ mode |= S_IFIFO;
-+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub);
-+ break;
-+ case 'c':
-+ case 'b':
-+ mode |= (type == 'c') ? S_IFCHR : S_IFBLK;
-+ if (count > 0) {
-+ char *buf;
-+ unsigned long i;
-+ dev_t rdev;
-+
-+ for (i = start; i < count; i++) {
-+ asprintf(&buf, "%s%lu", name, i);
-+ rdev = makedev(major, minor + (i * increment - start));
-+ modify_entry(buf, uid, gid, mode, rdev, root, fslen_ub);
-+ free(buf);
-+ }
-+ } else {
-+ dev_t rdev = makedev(major, minor);
-+ modify_entry(name, uid, gid, mode, rdev, root, fslen_ub);
-+ }
-+ break;
-+ default:
-+ error_msg_and_die("Unsupported file type");
-+ }
-+ free(name);
-+ return 0;
-+}
-+
-+static int parse_device_table(FILE *file, struct entry *root, loff_t *fslen_ub)
-+{
-+ char *line;
-+ int status = 0;
-+ size_t length = 0;
-+
-+ /* Turn off squash, since we must ensure that values
-+ * entered via the device table are not squashed */
-+ opt_squash = 0;
-+
-+ /* Looks ok so far. The general plan now is to read in one
-+ * line at a time, check for leading comment delimiters ('#'),
-+ * then try and parse the line as a device table. If we fail
-+ * to parse things, try and help the poor fool to fix their
-+ * device table with a useful error msg... */
-+ line = NULL;
-+ while (getline(&line, &length, file) != -1) {
-+ /* First trim off any whitespace */
-+ int len = strlen(line);
-+
-+ /* trim trailing whitespace */
-+ while (len > 0 && isspace(line[len - 1]))
-+ line[--len] = '\0';
-+ /* trim leading whitespace */
-+ memmove(line, &line[strspn(line, " \n\r\t\v")], len);
-+
-+ /* How long are we after trimming? */
-+ len = strlen(line);
-+
-+ /* If this is NOT a comment line, try to interpret it */
-+ if (len && *line != '#') {
-+ if (interpret_table_entry(line, root, fslen_ub))
-+ status = 1;
-+ }
-+
-+ free(line);
-+ line = NULL;
-+ }
-+ free(line);
-+ fclose(file);
-+
-+ return status;
-+}
-+
-+void traverse(struct entry *entry, int depth)
-+{
-+ struct entry *curr = entry;
-+ int i;
-+
-+ while (curr) {
-+ for (i = 0; i < depth; i++) putchar(' ');
-+ printf("%s: size=%d mode=%d same=%p\n",
-+ (curr->name)? (char*)curr->name : "/",
-+ curr->size, curr->mode, curr->same);
-+ if (curr->child) traverse(curr->child, depth + 4);
-+ curr = curr->next;
-+ }
-+}
-+
-+static void free_filesystem_entry(struct entry *dir)
-+{
-+ struct entry *e = dir, *last;
-+
-+ if (S_ISDIR(dir->mode)) {
-+ e = dir->child;
-+ }
-+ while (e) {
-+ if (e->name)
-+ free(e->name);
-+ if (e->path)
-+ free(e->path);
-+ if (e->uncompressed)
-+ free(e->uncompressed);
-+ last = e;
-+ if (e->child) {
-+ free_filesystem_entry(e);
-+ }
-+ e = e->next;
-+ free(last);
-+ }
-+}
-+
-+
-+/*
-+ * Usage:
-+ *
-+ * mkcramfs directory-name outfile
-+ *
-+ * where "directory-name" is simply the root of the directory
-+ * tree that we want to generate a compressed filesystem out
-+ * of.
-+ */
- int main(int argc, char **argv)
- {
- struct stat st; /* used twice... */
-@@ -692,6 +1138,7 @@
- u32 crc;
- int c; /* for getopt */
- char *ep; /* for strtoul */
-+ FILE *devtable = NULL;
-
- total_blocks = 0;
-
-@@ -699,7 +1146,7 @@
- progname = argv[0];
-
- /* command line options */
-- while ((c = getopt(argc, argv, "hEe:i:n:psvz")) != EOF) {
-+ while ((c = getopt(argc, argv, "hEe:i:n:psvzD:q")) != EOF) {
- switch (c) {
- case 'h':
- usage(MKFS_OK);
-@@ -715,7 +1162,7 @@
- case 'i':
- opt_image = optarg;
- if (lstat(opt_image, &st) < 0) {
-- die(MKFS_ERROR, 1, "lstat failed: %s", opt_image);
-+ error_msg_and_die("lstat failed: %s", opt_image);
- }
- image_length = st.st_size; /* may be padded later */
- fslen_ub += (image_length + 3); /* 3 is for padding */
-@@ -736,6 +1183,16 @@
- case 'z':
- opt_holes = 1;
- break;
-+ case 'q':
-+ opt_squash = 1;
-+ break;
-+ case 'D':
-+ devtable = xfopen(optarg, "r");
-+ if (fstat(fileno(devtable), &st) < 0)
-+ perror_msg_and_die(optarg);
-+ if (st.st_size < 10)
-+ error_msg_and_die("%s: not a proper device table file\n", optarg);
-+ break;
- }
- }
-
-@@ -745,25 +1202,23 @@
- outfile = argv[optind + 1];
-
- if (stat(dirname, &st) < 0) {
-- die(MKFS_USAGE, 1, "stat failed: %s", dirname);
-- }
-- fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-- if (fd < 0) {
-- die(MKFS_USAGE, 1, "open failed: %s", outfile);
-+ error_msg_and_die("stat failed: %s", dirname);
- }
-+ fd = xopen(outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-
-- root_entry = calloc(1, sizeof(struct entry));
-- if (!root_entry) {
-- die(MKFS_ERROR, 1, "calloc failed");
-- }
-+ root_entry = xcalloc(1, sizeof(struct entry));
- root_entry->mode = st.st_mode;
- root_entry->uid = st.st_uid;
- root_entry->gid = st.st_gid;
-
- root_entry->size = parse_directory(root_entry, dirname, &root_entry->child, &fslen_ub);
-
-+ if (devtable) {
-+ parse_device_table(devtable, root_entry, &fslen_ub);
-+ }
-+
- /* always allocate a multiple of blksize bytes because that's
-- what we're going to write later on */
-+ what we're going to write later on */
- fslen_ub = ((fslen_ub - 1) | (blksize - 1)) + 1;
-
- if (fslen_ub > MAXFSLEN) {
-@@ -790,7 +1245,7 @@
- rom_image = mmap(NULL, fslen_ub?fslen_ub:1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-
- if (rom_image == MAP_FAILED) {
-- die(MKFS_ERROR, 1, "mmap failed");
-+ error_msg_and_die("mmap failed");
- }
-
- /* Skip the first opt_pad bytes for boot loader code */
-@@ -807,6 +1262,7 @@
- }
-
- offset = write_directory_structure(root_entry->child, rom_image, offset);
-+ if (opt_verbose)
- printf("Directory data: %d bytes\n", offset);
-
- offset = write_data(root_entry, rom_image, offset);
-@@ -814,30 +1270,38 @@
- /* We always write a multiple of blksize bytes, so that
- losetup works. */
- offset = ((offset - 1) | (blksize - 1)) + 1;
-+ if (opt_verbose)
- printf("Everything: %d kilobytes\n", offset >> 10);
-
- /* Write the superblock now that we can fill in all of the fields. */
- write_superblock(root_entry, rom_image+opt_pad, offset);
-+ if (opt_verbose)
- printf("Super block: %d bytes\n", sizeof(struct cramfs_super));
-
- /* Put the checksum in. */
- crc = crc32(0L, Z_NULL, 0);
- crc = crc32(crc, (rom_image+opt_pad), (offset-opt_pad));
- ((struct cramfs_super *) (rom_image+opt_pad))->fsid.crc = crc;
-+ if (opt_verbose)
- printf("CRC: %x\n", crc);
-
- /* Check to make sure we allocated enough space. */
- if (fslen_ub < offset) {
-- die(MKFS_ERROR, 0, "not enough space allocated for ROM image (%Ld allocated, %d used)", fslen_ub, offset);
-+ error_msg_and_die("not enough space allocated for ROM "
-+ "image (%Ld allocated, %d used)", fslen_ub, offset);
- }
-
- written = write(fd, rom_image, offset);
- if (written < 0) {
-- die(MKFS_ERROR, 1, "write failed");
-+ error_msg_and_die("write failed");
- }
- if (offset != written) {
-- die(MKFS_ERROR, 0, "ROM image write failed (wrote %d of %d bytes)", written, offset);
-+ error_msg_and_die("ROM image write failed (wrote %d of %d bytes)", written, offset);
- }
-+
-+ /* Free up memory */
-+ free_filesystem_entry(root_entry);
-+ free(root_entry);
-
- /* (These warnings used to come at the start, but they scroll off the
- screen too quickly.) */
+++ /dev/null
---- cramfs-1.1/mkcramfs.c.orig 2005-04-13 05:55:57.000000000 -0600
-+++ cramfs-1.1/mkcramfs.c 2005-04-13 16:19:57.000000000 -0600
-@@ -117,6 +117,7 @@
- static int opt_squash = 0;
- static char *opt_image = NULL;
- static char *opt_name = NULL;
-+static int swap_endian = 0;
-
- static int warn_dev, warn_gid, warn_namelen, warn_skip, warn_size, warn_uid;
- static const char *const memory_exhausted = "memory exhausted";
-@@ -155,6 +156,8 @@
- " -i file insert a file image into the filesystem (requires >= 2.4.0)\n"
- " -n name set name of cramfs filesystem\n"
- " -p pad by %d bytes for boot code\n"
-+ " -l litte endian filesystem\n"
-+ " -b big endian filesystem\n"
- " -s sort directory entries (old option, ignored)\n"
- " -v be more verbose\n"
- " -z make explicit holes (requires >= 2.3.39)\n"
-@@ -504,6 +506,50 @@
- return totalsize;
- }
-
-+/* routines to swap endianness/bitfields in inode/superblock block data */
-+static void fix_inode(struct cramfs_inode *inode)
-+{
-+#define wswap(x) (((x)>>24) | (((x)>>8)&0xff00) | (((x)&0xff00)<<8) | (((x)&0xff)<<24))
-+ /* attempt #2 */
-+ inode->mode = (inode->mode >> 8) | ((inode->mode&0xff)<<8);
-+ inode->uid = (inode->uid >> 8) | ((inode->uid&0xff)<<8);
-+ inode->size = (inode->size >> 16) | (inode->size&0xff00) |
-+ ((inode->size&0xff)<<16);
-+ ((u32*)inode)[2] = wswap(inode->offset | (inode->namelen<<26));
-+}
-+
-+static void fix_offset(struct cramfs_inode *inode, u32 offset)
-+{
-+ u32 tmp = wswap(((u32*)inode)[2]);
-+ ((u32*)inode)[2] = wswap((offset >> 2) | (tmp&0xfc000000));
-+}
-+
-+static void fix_block_pointer(u32 *p)
-+{
-+ *p = wswap(*p);
-+}
-+
-+static void fix_super(struct cramfs_super *super)
-+{
-+ u32 *p = (u32*)super;
-+
-+ /* fix superblock fields */
-+ p[0] = wswap(p[0]); /* magic */
-+ p[1] = wswap(p[1]); /* size */
-+ p[2] = wswap(p[2]); /* flags */
-+ p[3] = wswap(p[3]); /* future */
-+
-+ /* fix filesystem info fields */
-+ p = (u32*)&super->fsid;
-+ p[0] = wswap(p[0]); /* crc */
-+ p[1] = wswap(p[1]); /* edition */
-+ p[2] = wswap(p[2]); /* blocks */
-+ p[3] = wswap(p[3]); /* files */
-+
-+ fix_inode(&super->root);
-+#undef wswap
-+}
-+
- /* Returns sizeof(struct cramfs_super), which includes the root inode. */
- static unsigned int write_superblock(struct entry *root, char *base, int size)
- {
-@@ -539,6 +585,7 @@
- super->root.gid = root->gid;
- super->root.size = root->size;
- super->root.offset = offset >> 2;
-+ if (swap_endian) fix_super(super);
-
- return offset;
- }
-@@ -553,7 +600,10 @@
- if (offset >= (1 << (2 + CRAMFS_OFFSET_WIDTH))) {
- error_msg_and_die("filesystem too big");
- }
-- inode->offset = (offset >> 2);
-+ if (swap_endian)
-+ fix_offset(inode, offset);
-+ else
-+ inode->offset = (offset >> 2);
- }
-
- /*
-@@ -638,6 +688,7 @@
- stack_entries++;
- }
- entry = entry->next;
-+ if (swap_endian) fix_inode(inode);
- }
-
- /*
-@@ -734,6 +785,7 @@
- }
-
- *(u32 *) (base + offset) = curr;
-+ if (swap_endian) fix_block_pointer((u32*)(base + offset));
- offset += 4;
- } while (size);
-
-@@ -1146,7 +1198,7 @@
- progname = argv[0];
-
- /* command line options */
-- while ((c = getopt(argc, argv, "hEe:i:n:psvzD:q")) != EOF) {
-+ while ((c = getopt(argc, argv, "hEe:i:n:psvzD:qlb")) != EOF) {
- switch (c) {
- case 'h':
- usage(MKFS_OK);
-@@ -1174,6 +1227,18 @@
- opt_pad = PAD_SIZE;
- fslen_ub += PAD_SIZE;
- break;
-+ case 'b':
-+#if __BYTE_ORDER == __LITTLE_ENDIAN
-+ swap_endian = 1;
-+ printf("Swapping filesystem endian-ness\n");
-+#endif
-+ break;
-+ case 'l':
-+#if __BYTE_ORDER == __BIG_ENDIAN
-+ swap_endian = 1;
-+ printf("Swapping filesystem endian-ness\n");
-+#endif
-+ break;
- case 's':
- /* old option, ignored */
- break;
---- cramfs-1.1/cramfsck.c.orig 2005-04-25 11:50:31.000000000 -0700
-+++ cramfs-1.1/cramfsck.c 2005-04-25 16:53:25.000000000 -0700
-@@ -30,6 +30,7 @@
- * 2000/07/15: Daniel Quinlan (initial support for block devices)
- * 2002/01/10: Daniel Quinlan (additional checks, test more return codes,
- * use read if mmap fails, standardize messages)
-+ * 2004/09/01: Alfonso Acosta (Add swapping support)
- */
-
- /* compile-time options */
-@@ -51,6 +52,7 @@
- #include <utime.h>
- #include <sys/ioctl.h>
- #define _LINUX_STRING_H_
-+#include <byteswap.h>
- #include "linux/cramfs_fs.h"
- #include <zlib.h>
-
-@@ -74,6 +76,7 @@
- static char *filename; /* ROM image filename */
- struct cramfs_super super; /* just find the cramfs superblock once */
- static int opt_verbose = 0; /* 1 = verbose (-v), 2+ = very verbose (-vv) */
-+static int need_swapping = 0; /* fs and host dont have the same endianness */
- #ifdef INCLUDE_FS_TESTS
- static int opt_extract = 0; /* extract cramfs (-x) */
- static char *extract_dir = "/"; /* extraction directory (-x) */
-@@ -85,6 +88,9 @@
- static unsigned long start_data = ~0UL; /* start of the data (256 MB = max) */
- static unsigned long end_data = 0; /* end of the data */
-
-+/* access 32 byte variables */
-+#define CRAMFS_32(x) (need_swapping ? bswap_32(x) : x)
-+
- /* Guarantee access to at least 8kB at a time */
- #define ROMBUFFER_BITS 13
- #define ROMBUFFERSIZE (1 << ROMBUFFER_BITS)
-@@ -166,20 +172,34 @@
- if (super.magic == CRAMFS_MAGIC) {
- *start = 0;
- }
-+ else if (super.magic == bswap_32(CRAMFS_MAGIC)) {
-+ *start = 0;
-+ need_swapping = 1;
-+ }
-+
- else if (*length >= (PAD_SIZE + sizeof(super))) {
- lseek(fd, PAD_SIZE, SEEK_SET);
- if (read(fd, &super, sizeof(super)) != sizeof(super)) {
- die(FSCK_ERROR, 1, "read failed: %s", filename);
- }
-- if (super.magic == CRAMFS_MAGIC) {
-+ if (super.magic == CRAMFS_32(CRAMFS_MAGIC)) {
- *start = PAD_SIZE;
- }
- }
-
- /* superblock tests */
-- if (super.magic != CRAMFS_MAGIC) {
-+ if (super.magic != CRAMFS_32(CRAMFS_MAGIC)) {
- die(FSCK_UNCORRECTED, 0, "superblock magic not found");
- }
-+ if (need_swapping){
-+ super.size = bswap_32(super.size);
-+ super.flags = bswap_32(super.flags);
-+ super.future = bswap_32(super.future);
-+ super.fsid.crc = bswap_32(super.fsid.crc);
-+ super.fsid.edition = bswap_32(super.fsid.edition);
-+ super.fsid.blocks = bswap_32(super.fsid.blocks);
-+ super.fsid.files = bswap_32(super.fsid.files);
-+ }
- if (super.flags & ~CRAMFS_SUPPORTED_FLAGS) {
- die(FSCK_ERROR, 0, "unsupported filesystem features");
- }
-@@ -215,7 +235,10 @@
- die(FSCK_USAGE, 0, "unable to test CRC: old cramfs format");
- #endif /* not INCLUDE_FS_TESTS */
- }
--
-+ else if (need_swapping) {
-+ /* crc checking in this case would mean translating the whole file */
-+ return;
-+ }
- crc = crc32(0L, Z_NULL, 0);
-
- buf = mmap(NULL, super.size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
-@@ -300,12 +323,23 @@
-
- static struct cramfs_inode *cramfs_iget(struct cramfs_inode * i)
- {
-+#define wswap(x) (((x)>>24) | (((x)>>8)&0xff00) | (((x)&0xff00)<<8) | (((x)&0xff)<<24))
- struct cramfs_inode *inode = malloc(sizeof(struct cramfs_inode));
-
- if (!inode) {
- die(FSCK_ERROR, 1, "malloc failed");
- }
-- *inode = *i;
-+ if(!need_swapping) {
-+ *inode = *i;
-+ }
-+ else {
-+ inode->mode=bswap_16(i->mode);
-+ inode->uid=bswap_16(i->uid);
-+ inode->size=bswap_32(i->size << 8);
-+ inode->gid=i->gid;
-+ inode->namelen = bswap_32(((u32*)i)[2]) >> 26;
-+ inode->offset = bswap_32(((u32*)i)[2]) & 0x3FFFFFFF;
-+ }
- return inode;
- }
-
-@@ -324,9 +358,9 @@
- */
- static struct cramfs_inode *read_super(void)
- {
-- unsigned long offset = super.root.offset << 2;
--
-- if (!S_ISDIR(super.root.mode))
-+ struct cramfs_inode *root = cramfs_iget(&super.root);
-+ unsigned long offset = root->offset << 2;
-+ if (!S_ISDIR(root->mode))
- die(FSCK_UNCORRECTED, 0, "root inode is not directory");
- if (!(super.flags & CRAMFS_FLAG_SHIFTED_ROOT_OFFSET) &&
- ((offset != sizeof(struct cramfs_super)) &&
-@@ -334,7 +368,7 @@
- {
- die(FSCK_UNCORRECTED, 0, "bad root offset (%lu)", offset);
- }
-- return cramfs_iget(&super.root);
-+ return root;
- }
-
- static int uncompress_block(void *src, int len)
-@@ -366,7 +400,7 @@
-
- do {
- unsigned long out = PAGE_CACHE_SIZE;
-- unsigned long next = *(u32 *) romfs_read(offset);
-+ unsigned long next = CRAMFS_32(*(u32 *) romfs_read(offset));
-
- if (next > end_data) {
- end_data = next;
-@@ -529,7 +563,7 @@
- {
- unsigned long offset = i->offset << 2;
- unsigned long curr = offset + 4;
-- unsigned long next = *(u32 *) romfs_read(offset);
-+ unsigned long next = CRAMFS_32(*(u32 *) romfs_read(offset));
- unsigned long size;
-
- if (offset == 0) {
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