Adding upstream version 3:4.8.29.upstream/3%4.8.29upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 1665 insertions, 0 deletions

diff --git a/src/vfs/cpio/Makefile.am b/src/vfs/cpio/Makefile.am
new file mode 100644
index 0000000..a7806f8
--- /dev/null
+++ b/src/vfs/cpio/Makefile.am
@@ -0,0 +1,7 @@
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diff --git a/src/vfs/cpio/Makefile.in b/src/vfs/cpio/Makefile.in
new file mode 100644
index 0000000..df1622b
--- /dev/null
+++ b/src/vfs/cpio/Makefile.in
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+libvfs-cpio.la: $(libvfs_cpio_la_OBJECTS) $(libvfs_cpio_la_DEPENDENCIES) $(EXTRA_libvfs_cpio_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK)  $(libvfs_cpio_la_OBJECTS) $(libvfs_cpio_la_LIBADD) $(LIBS)
+
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+	$(am__define_uniq_tagged_files); \
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+	  test -n "$$unique" || unique=$$empty_fix; \
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+	      "$$@" $$unique; \
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
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+GTAGS:
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
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+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	mostlyclean-am
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/vfs/cpio/cpio.c b/src/vfs/cpio/cpio.c
new file mode 100644
index 0000000..f46766f
--- /dev/null
+++ b/src/vfs/cpio/cpio.c
@@ -0,0 +1,906 @@
+/*
+   Virtual File System: GNU Tar file system.
+
+   Copyright (C) 2000-2022
+   Free Software Foundation, Inc.
+
+   Written by:
+   Jan Hudec, 2000
+   Slava Zanko <slavazanko@gmail.com>, 2013
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander is free software: you can redistribute it
+   and/or modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   The Midnight Commander is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file
+ *  \brief Source: Virtual File System: GNU Tar file system.
+ *  \author Jan Hudec
+ *  \date 2000
+ */
+
+#include <config.h>
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "lib/global.h"
+#include "lib/unixcompat.h"
+#include "lib/util.h"
+#include "lib/widget.h"         /* message() */
+
+#include "lib/vfs/vfs.h"
+#include "lib/vfs/utilvfs.h"
+#include "lib/vfs/xdirentry.h"
+#include "lib/vfs/gc.h"         /* vfs_rmstamp */
+
+#include "cpio.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+#define CPIO_SUPER(super) ((cpio_super_t *) (super))
+
+#define CPIO_POS(super) cpio_position
+/* If some time reentrancy should be needed change it to */
+/* #define CPIO_POS(super) (super)->u.arch.fd */
+
+#define CPIO_SEEK_SET(super, where) mc_lseek (CPIO_SUPER(super)->fd, CPIO_POS(super) = (where), SEEK_SET)
+#define CPIO_SEEK_CUR(super, where) mc_lseek (CPIO_SUPER(super)->fd, CPIO_POS(super) += (where), SEEK_SET)
+
+#define MAGIC_LENGTH (6)        /* How many bytes we have to read ahead */
+#define SEEKBACK CPIO_SEEK_CUR(super, ptr - top)
+#define RETURN(x) return (CPIO_SUPER(super)->type = (x))
+#define TYPEIS(x) ((CPIO_SUPER(super)->type == CPIO_UNKNOWN) || (CPIO_SUPER(super)->type == (x)))
+
+#define HEAD_LENGTH (26)
+
+/*** file scope type declarations ****************************************************************/
+
+enum
+{
+    STATUS_START,
+    STATUS_OK,
+    STATUS_TRAIL,
+    STATUS_FAIL,
+    STATUS_EOF
+};
+
+enum
+{
+    CPIO_UNKNOWN = 0,           /* Not determined yet */
+    CPIO_BIN,                   /* Binary format */
+    CPIO_BINRE,                 /* Binary format, reverse endianity */
+    CPIO_OLDC,                  /* Old ASCII format */
+    CPIO_NEWC,                  /* New ASCII format */
+    CPIO_CRC                    /* New ASCII format + CRC */
+};
+
+struct old_cpio_header
+{
+    unsigned short c_magic;
+    short c_dev;
+    unsigned short c_ino;
+    unsigned short c_mode;
+    unsigned short c_uid;
+    unsigned short c_gid;
+    unsigned short c_nlink;
+    short c_rdev;
+    unsigned short c_mtimes[2];
+    unsigned short c_namesize;
+    unsigned short c_filesizes[2];
+};
+
+struct new_cpio_header
+{
+    unsigned short c_magic;
+    unsigned long c_ino;
+    unsigned long c_mode;
+    unsigned long c_uid;
+    unsigned long c_gid;
+    unsigned long c_nlink;
+    unsigned long c_mtime;
+    unsigned long c_filesize;
+    long c_dev;
+    long c_devmin;
+    long c_rdev;
+    long c_rdevmin;
+    unsigned long c_namesize;
+    unsigned long c_chksum;
+};
+
+typedef struct
+{
+    unsigned long inumber;
+    dev_t device;
+    struct vfs_s_inode *inode;
+} defer_inode;
+
+typedef struct
+{
+    struct vfs_s_super base;    /* base class */
+
+    int fd;
+    struct stat st;
+    int type;                   /* Type of the archive */
+    GSList *deferred;           /* List of inodes for which another entries may appear */
+} cpio_super_t;
+
+/*** file scope variables ************************************************************************/
+
+static struct vfs_s_subclass cpio_subclass;
+static struct vfs_class *vfs_cpiofs_ops = VFS_CLASS (&cpio_subclass);
+
+static off_t cpio_position;
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t cpio_find_head (struct vfs_class *me, struct vfs_s_super *super);
+static ssize_t cpio_read_bin_head (struct vfs_class *me, struct vfs_s_super *super);
+static ssize_t cpio_read_oldc_head (struct vfs_class *me, struct vfs_s_super *super);
+static ssize_t cpio_read_crc_head (struct vfs_class *me, struct vfs_s_super *super);
+static ssize_t cpio_read (void *fh, char *buffer, size_t count);
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+cpio_defer_find (const void *a, const void *b)
+{
+    const defer_inode *a1 = (const defer_inode *) a;
+    const defer_inode *b1 = (const defer_inode *) b;
+
+    return (a1->inumber == b1->inumber && a1->device == b1->device) ? 0 : 1;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t
+cpio_skip_padding (struct vfs_s_super *super)
+{
+    switch (CPIO_SUPER (super)->type)
+    {
+    case CPIO_BIN:
+    case CPIO_BINRE:
+        return CPIO_SEEK_CUR (super, (2 - (CPIO_POS (super) % 2)) % 2);
+    case CPIO_NEWC:
+    case CPIO_CRC:
+        return CPIO_SEEK_CUR (super, (4 - (CPIO_POS (super) % 4)) % 4);
+    case CPIO_OLDC:
+        return CPIO_POS (super);
+    default:
+        g_assert_not_reached ();
+        return 42;              /* & the compiler is happy :-) */
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static struct vfs_s_super *
+cpio_new_archive (struct vfs_class *me)
+{
+    cpio_super_t *arch;
+
+    arch = g_new0 (cpio_super_t, 1);
+    arch->base.me = me;
+    arch->fd = -1;              /* for now */
+    arch->type = CPIO_UNKNOWN;
+
+    return VFS_SUPER (arch);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+cpio_free_archive (struct vfs_class *me, struct vfs_s_super *super)
+{
+    cpio_super_t *arch = CPIO_SUPER (super);
+
+    (void) me;
+
+    if (arch->fd != -1)
+    {
+        mc_close (arch->fd);
+        arch->fd = -1;
+    }
+
+    g_clear_slist (&arch->deferred, g_free);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+cpio_open_cpio_file (struct vfs_class *me, struct vfs_s_super *super, const vfs_path_t * vpath)
+{
+    int fd, type;
+    cpio_super_t *arch;
+    mode_t mode;
+    struct vfs_s_inode *root;
+
+    fd = mc_open (vpath, O_RDONLY);
+    if (fd == -1)
+    {
+        message (D_ERROR, MSG_ERROR, _("Cannot open cpio archive\n%s"), vfs_path_as_str (vpath));
+        return -1;
+    }
+
+    super->name = g_strdup (vfs_path_as_str (vpath));
+    arch = CPIO_SUPER (super);
+    mc_stat (vpath, &arch->st);
+
+    type = get_compression_type (fd, super->name);
+    if (type == COMPRESSION_NONE)
+        mc_lseek (fd, 0, SEEK_SET);
+    else
+    {
+        char *s;
+        vfs_path_t *tmp_vpath;
+
+        mc_close (fd);
+        s = g_strconcat (super->name, decompress_extension (type), (char *) NULL);
+        tmp_vpath = vfs_path_from_str_flags (s, VPF_NO_CANON);
+        fd = mc_open (tmp_vpath, O_RDONLY);
+        vfs_path_free (tmp_vpath, TRUE);
+        if (fd == -1)
+        {
+            message (D_ERROR, MSG_ERROR, _("Cannot open cpio archive\n%s"), s);
+            g_free (s);
+            MC_PTR_FREE (super->name);
+            return -1;
+        }
+        g_free (s);
+    }
+
+    arch->fd = fd;
+    mode = arch->st.st_mode & 07777;
+    mode |= (mode & 0444) >> 2; /* set eXec where Read is */
+    mode |= S_IFDIR;
+
+    root = vfs_s_new_inode (me, super, &arch->st);
+    root->st.st_mode = mode;
+    root->data_offset = -1;
+    root->st.st_nlink++;
+    root->st.st_dev = VFS_SUBCLASS (me)->rdev++;
+
+    super->root = root;
+
+    CPIO_SEEK_SET (super, 0);
+
+    return fd;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t
+cpio_read_head (struct vfs_class *me, struct vfs_s_super *super)
+{
+    switch (cpio_find_head (me, super))
+    {
+    case CPIO_UNKNOWN:
+        return -1;
+    case CPIO_BIN:
+    case CPIO_BINRE:
+        return cpio_read_bin_head (me, super);
+    case CPIO_OLDC:
+        return cpio_read_oldc_head (me, super);
+    case CPIO_NEWC:
+    case CPIO_CRC:
+        return cpio_read_crc_head (me, super);
+    default:
+        g_assert_not_reached ();
+        return 42;              /* & the compiler is happy :-) */
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t
+cpio_find_head (struct vfs_class *me, struct vfs_s_super *super)
+{
+    cpio_super_t *arch = CPIO_SUPER (super);
+    char buf[BUF_SMALL * 2];
+    ssize_t ptr = 0;
+    ssize_t top;
+    ssize_t tmp;
+
+    top = mc_read (arch->fd, buf, sizeof (buf));
+    if (top > 0)
+        CPIO_POS (super) += top;
+
+    while (TRUE)
+    {
+        if (ptr + MAGIC_LENGTH >= top)
+        {
+            if (top > (ssize_t) (sizeof (buf) / 2))
+            {
+                memmove (buf, buf + top - sizeof (buf) / 2, sizeof (buf) / 2);
+                ptr -= top - sizeof (buf) / 2;
+                top = sizeof (buf) / 2;
+            }
+            tmp = mc_read (arch->fd, buf, top);
+            if (tmp == 0 || tmp == -1)
+            {
+                message (D_ERROR, MSG_ERROR, _("Premature end of cpio archive\n%s"), super->name);
+                cpio_free_archive (me, super);
+                return CPIO_UNKNOWN;
+            }
+            top += tmp;
+        }
+        if (TYPEIS (CPIO_BIN) && ((*(unsigned short *) (buf + ptr)) == 070707))
+        {
+            SEEKBACK;
+            RETURN (CPIO_BIN);
+        }
+        else if (TYPEIS (CPIO_BINRE)
+                 && ((*(unsigned short *) (buf + ptr)) == GUINT16_SWAP_LE_BE_CONSTANT (070707)))
+        {
+            SEEKBACK;
+            RETURN (CPIO_BINRE);
+        }
+        else if (TYPEIS (CPIO_OLDC) && (strncmp (buf + ptr, "070707", 6) == 0))
+        {
+            SEEKBACK;
+            RETURN (CPIO_OLDC);
+        }
+        else if (TYPEIS (CPIO_NEWC) && (strncmp (buf + ptr, "070701", 6) == 0))
+        {
+            SEEKBACK;
+            RETURN (CPIO_NEWC);
+        }
+        else if (TYPEIS (CPIO_CRC) && (strncmp (buf + ptr, "070702", 6) == 0))
+        {
+            SEEKBACK;
+            RETURN (CPIO_CRC);
+        };
+        ptr++;
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+cpio_create_entry (struct vfs_class *me, struct vfs_s_super *super, struct stat *st, char *name)
+{
+    cpio_super_t *arch = CPIO_SUPER (super);
+    struct vfs_s_inode *inode = NULL;
+    struct vfs_s_inode *root = super->root;
+    struct vfs_s_entry *entry = NULL;
+    char *tn;
+
+    switch (st->st_mode & S_IFMT)
+    {                           /* For case of HP/UX archives */
+    case S_IFCHR:
+    case S_IFBLK:
+#ifdef S_IFSOCK
+        /* cppcheck-suppress syntaxError */
+    case S_IFSOCK:
+#endif
+#ifdef S_IFIFO
+        /* cppcheck-suppress syntaxError */
+    case S_IFIFO:
+#endif
+#ifdef S_IFNAM
+        /* cppcheck-suppress syntaxError */
+    case S_IFNAM:
+#endif
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+        if ((st->st_size != 0) && (st->st_rdev == 0x0001))
+        {
+            /* FIXME: representation of major/minor differs between */
+            /* different operating systems. */
+            st->st_rdev = (unsigned) st->st_size;
+            st->st_size = 0;
+        }
+#endif
+        break;
+    default:
+        break;
+    }
+
+    if ((st->st_nlink > 1) && ((arch->type == CPIO_NEWC) || (arch->type == CPIO_CRC)))
+    {                           /* For case of hardlinked files */
+        defer_inode i = { st->st_ino, st->st_dev, NULL };
+        GSList *l;
+
+        l = g_slist_find_custom (arch->deferred, &i, cpio_defer_find);
+        if (l != NULL)
+        {
+            inode = ((defer_inode *) l->data)->inode;
+            if (inode->st.st_size != 0 && st->st_size != 0 && (inode->st.st_size != st->st_size))
+            {
+                message (D_ERROR, MSG_ERROR,
+                         _("Inconsistent hardlinks of\n%s\nin cpio archive\n%s"),
+                         name, super->name);
+                inode = NULL;
+            }
+            else if (inode->st.st_size == 0)
+                inode->st.st_size = st->st_size;
+        }
+    }
+
+    /* remove trailing slashes */
+    for (tn = name + strlen (name) - 1; tn >= name && IS_PATH_SEP (*tn); tn--)
+        *tn = '\0';
+
+    tn = strrchr (name, PATH_SEP);
+    if (tn == NULL)
+        tn = name;
+    else if (tn == name + 1)
+    {
+        /* started with "./" -- directory in the root of archive */
+        tn++;
+    }
+    else
+    {
+        *tn = '\0';
+        root = vfs_s_find_inode (me, super, name, LINK_FOLLOW, FL_MKDIR);
+        *tn = PATH_SEP;
+        tn++;
+    }
+
+    entry = VFS_SUBCLASS (me)->find_entry (me, root, tn, LINK_FOLLOW, FL_NONE); /* In case entry is already there */
+
+    if (entry != NULL)
+    {
+        /* This shouldn't happen! (well, it can happen if there is a record for a
+           file and than a record for a directory it is in; cpio would die with
+           'No such file or directory' is such case) */
+
+        if (!S_ISDIR (entry->ino->st.st_mode))
+        {
+            /* This can be considered archive inconsistency */
+            message (D_ERROR, MSG_ERROR,
+                     _("%s contains duplicate entries! Skipping!"), super->name);
+        }
+        else
+        {
+            entry->ino->st.st_mode = st->st_mode;
+            entry->ino->st.st_uid = st->st_uid;
+            entry->ino->st.st_gid = st->st_gid;
+#ifdef HAVE_STRUCT_STAT_ST_MTIM
+            entry->ino->st.st_atim = st->st_atim;
+            entry->ino->st.st_mtim = st->st_mtim;
+            entry->ino->st.st_ctim = st->st_ctim;
+#else
+            entry->ino->st.st_atime = st->st_atime;
+            entry->ino->st.st_mtime = st->st_mtime;
+            entry->ino->st.st_ctime = st->st_ctime;
+#endif
+        }
+
+        g_free (name);
+    }
+    else
+    {                           /* !entry */
+        /* root == NULL can be in the following case:
+         * a/b/c -> d
+         * where 'a/b' is the stale link and therefore root of 'c' cannot be found in the archive
+         */
+        if (root != NULL)
+        {
+            if (inode == NULL)
+            {
+                inode = vfs_s_new_inode (me, super, st);
+                if ((st->st_nlink > 0) && ((arch->type == CPIO_NEWC) || (arch->type == CPIO_CRC)))
+                {
+                    /* For case of hardlinked files */
+                    defer_inode *i;
+
+                    i = g_new (defer_inode, 1);
+                    i->inumber = st->st_ino;
+                    i->device = st->st_dev;
+                    i->inode = inode;
+
+                    arch->deferred = g_slist_prepend (arch->deferred, i);
+                }
+            }
+
+            if (st->st_size != 0)
+                inode->data_offset = CPIO_POS (super);
+
+            entry = vfs_s_new_entry (me, tn, inode);
+            vfs_s_insert_entry (me, root, entry);
+        }
+
+        g_free (name);
+
+        if (!S_ISLNK (st->st_mode))
+            CPIO_SEEK_CUR (super, st->st_size);
+        else
+        {
+            if (inode != NULL)
+            {
+                /* FIXME: do we must read from arch->fd in case of inode != NULL only or in any case? */
+
+                inode->linkname = g_malloc (st->st_size + 1);
+
+                if (mc_read (arch->fd, inode->linkname, st->st_size) < st->st_size)
+                {
+                    inode->linkname[0] = '\0';
+                    return STATUS_EOF;
+                }
+
+                inode->linkname[st->st_size] = '\0';    /* Linkname stored without terminating \0 !!! */
+            }
+
+            CPIO_POS (super) += st->st_size;
+            cpio_skip_padding (super);
+        }
+    }                           /* !entry */
+
+    return STATUS_OK;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t
+cpio_read_bin_head (struct vfs_class *me, struct vfs_s_super *super)
+{
+    union
+    {
+        struct old_cpio_header buf;
+        short shorts[HEAD_LENGTH >> 1];
+    } u;
+
+    cpio_super_t *arch = CPIO_SUPER (super);
+    ssize_t len;
+    char *name;
+    struct stat st;
+
+    len = mc_read (arch->fd, (char *) &u.buf, HEAD_LENGTH);
+    if (len < HEAD_LENGTH)
+        return STATUS_EOF;
+    CPIO_POS (super) += len;
+    if (arch->type == CPIO_BINRE)
+    {
+        int i;
+        for (i = 0; i < (HEAD_LENGTH >> 1); i++)
+            u.shorts[i] = GUINT16_SWAP_LE_BE_CONSTANT (u.shorts[i]);
+    }
+
+    if (u.buf.c_magic != 070707 || u.buf.c_namesize == 0 || u.buf.c_namesize > MC_MAXPATHLEN)
+    {
+        message (D_ERROR, MSG_ERROR, _("Corrupted cpio header encountered in\n%s"), super->name);
+        return STATUS_FAIL;
+    }
+    name = g_malloc (u.buf.c_namesize);
+    len = mc_read (arch->fd, name, u.buf.c_namesize);
+    if (len < u.buf.c_namesize)
+    {
+        g_free (name);
+        return STATUS_EOF;
+    }
+    name[u.buf.c_namesize - 1] = '\0';
+    CPIO_POS (super) += len;
+    cpio_skip_padding (super);
+
+    if (!strcmp ("TRAILER!!!", name))
+    {                           /* We got to the last record */
+        g_free (name);
+        return STATUS_TRAIL;
+    }
+
+    st.st_dev = u.buf.c_dev;
+    st.st_ino = u.buf.c_ino;
+    st.st_mode = u.buf.c_mode;
+    st.st_nlink = u.buf.c_nlink;
+    st.st_uid = u.buf.c_uid;
+    st.st_gid = u.buf.c_gid;
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+    st.st_rdev = u.buf.c_rdev;
+#endif
+    st.st_size = ((off_t) u.buf.c_filesizes[0] << 16) | u.buf.c_filesizes[1];
+#ifdef HAVE_STRUCT_STAT_ST_MTIM
+    st.st_atim.tv_nsec = st.st_mtim.tv_nsec = st.st_ctim.tv_nsec = 0;
+#endif
+    st.st_atime = st.st_mtime = st.st_ctime =
+        ((time_t) u.buf.c_mtimes[0] << 16) | u.buf.c_mtimes[1];
+
+    return cpio_create_entry (me, super, &st, name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+#undef HEAD_LENGTH
+#define HEAD_LENGTH (76)
+
+static ssize_t
+cpio_read_oldc_head (struct vfs_class *me, struct vfs_s_super *super)
+{
+    cpio_super_t *arch = CPIO_SUPER (super);
+    struct new_cpio_header hd;
+    union
+    {
+        struct stat st;
+        char buf[HEAD_LENGTH + 1];
+    } u;
+    ssize_t len;
+    char *name;
+
+    if (mc_read (arch->fd, u.buf, HEAD_LENGTH) != HEAD_LENGTH)
+        return STATUS_EOF;
+    CPIO_POS (super) += HEAD_LENGTH;
+    u.buf[HEAD_LENGTH] = 0;
+
+    if (sscanf (u.buf, "070707%6lo%6lo%6lo%6lo%6lo%6lo%6lo%11lo%6lo%11lo",
+                (unsigned long *) &hd.c_dev, &hd.c_ino, &hd.c_mode, &hd.c_uid, &hd.c_gid,
+                &hd.c_nlink, (unsigned long *) &hd.c_rdev, &hd.c_mtime,
+                &hd.c_namesize, &hd.c_filesize) < 10)
+    {
+        message (D_ERROR, MSG_ERROR, _("Corrupted cpio header encountered in\n%s"), super->name);
+        return STATUS_FAIL;
+    }
+
+    if (hd.c_namesize == 0 || hd.c_namesize > MC_MAXPATHLEN)
+    {
+        message (D_ERROR, MSG_ERROR, _("Corrupted cpio header encountered in\n%s"), super->name);
+        return STATUS_FAIL;
+    }
+    name = g_malloc (hd.c_namesize);
+    len = mc_read (arch->fd, name, hd.c_namesize);
+    if ((len == -1) || ((unsigned long) len < hd.c_namesize))
+    {
+        g_free (name);
+        return STATUS_EOF;
+    }
+    name[hd.c_namesize - 1] = '\0';
+    CPIO_POS (super) += len;
+    cpio_skip_padding (super);
+
+    if (!strcmp ("TRAILER!!!", name))
+    {                           /* We got to the last record */
+        g_free (name);
+        return STATUS_TRAIL;
+    }
+
+    u.st.st_dev = hd.c_dev;
+    u.st.st_ino = hd.c_ino;
+    u.st.st_mode = hd.c_mode;
+    u.st.st_nlink = hd.c_nlink;
+    u.st.st_uid = hd.c_uid;
+    u.st.st_gid = hd.c_gid;
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+    u.st.st_rdev = hd.c_rdev;
+#endif
+    u.st.st_size = hd.c_filesize;
+#ifdef HAVE_STRUCT_STAT_ST_MTIM
+    u.st.st_atim.tv_nsec = u.st.st_mtim.tv_nsec = u.st.st_ctim.tv_nsec = 0;
+#endif
+    u.st.st_atime = u.st.st_mtime = u.st.st_ctime = hd.c_mtime;
+
+    return cpio_create_entry (me, super, &u.st, name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+#undef HEAD_LENGTH
+#define HEAD_LENGTH (110)
+
+static ssize_t
+cpio_read_crc_head (struct vfs_class *me, struct vfs_s_super *super)
+{
+    cpio_super_t *arch = CPIO_SUPER (super);
+    struct new_cpio_header hd;
+    union
+    {
+        struct stat st;
+        char buf[HEAD_LENGTH + 1];
+    } u;
+    ssize_t len;
+    char *name;
+
+    if (mc_read (arch->fd, u.buf, HEAD_LENGTH) != HEAD_LENGTH)
+        return STATUS_EOF;
+
+    CPIO_POS (super) += HEAD_LENGTH;
+    u.buf[HEAD_LENGTH] = '\0';
+
+    if (sscanf (u.buf, "%6ho%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx%8lx",
+                &hd.c_magic, &hd.c_ino, &hd.c_mode, &hd.c_uid, &hd.c_gid,
+                &hd.c_nlink, &hd.c_mtime, &hd.c_filesize,
+                (unsigned long *) &hd.c_dev, (unsigned long *) &hd.c_devmin,
+                (unsigned long *) &hd.c_rdev, (unsigned long *) &hd.c_rdevmin,
+                &hd.c_namesize, &hd.c_chksum) < 14)
+    {
+        message (D_ERROR, MSG_ERROR, _("Corrupted cpio header encountered in\n%s"), super->name);
+        return STATUS_FAIL;
+    }
+
+    if ((arch->type == CPIO_NEWC && hd.c_magic != 070701) ||
+        (arch->type == CPIO_CRC && hd.c_magic != 070702))
+        return STATUS_FAIL;
+
+    if (hd.c_namesize == 0 || hd.c_namesize > MC_MAXPATHLEN)
+    {
+        message (D_ERROR, MSG_ERROR, _("Corrupted cpio header encountered in\n%s"), super->name);
+        return STATUS_FAIL;
+    }
+
+    name = g_malloc (hd.c_namesize);
+    len = mc_read (arch->fd, name, hd.c_namesize);
+
+    if ((len == -1) || ((unsigned long) len < hd.c_namesize))
+    {
+        g_free (name);
+        return STATUS_EOF;
+    }
+    name[hd.c_namesize - 1] = '\0';
+    CPIO_POS (super) += len;
+    cpio_skip_padding (super);
+
+    if (strcmp ("TRAILER!!!", name) == 0)
+    {                           /* We got to the last record */
+        g_free (name);
+        return STATUS_TRAIL;
+    }
+
+    u.st.st_dev = makedev (hd.c_dev, hd.c_devmin);
+    u.st.st_ino = hd.c_ino;
+    u.st.st_mode = hd.c_mode;
+    u.st.st_nlink = hd.c_nlink;
+    u.st.st_uid = hd.c_uid;
+    u.st.st_gid = hd.c_gid;
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+    u.st.st_rdev = makedev (hd.c_rdev, hd.c_rdevmin);
+#endif
+    u.st.st_size = hd.c_filesize;
+#ifdef HAVE_STRUCT_STAT_ST_MTIM
+    u.st.st_atim.tv_nsec = u.st.st_mtim.tv_nsec = u.st.st_ctim.tv_nsec = 0;
+#endif
+    u.st.st_atime = u.st.st_mtime = u.st.st_ctime = hd.c_mtime;
+
+    return cpio_create_entry (me, super, &u.st, name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Need to CPIO_SEEK_CUR to skip the file at the end of add entry!!!! */
+
+static int
+cpio_open_archive (struct vfs_s_super *super, const vfs_path_t * vpath,
+                   const vfs_path_element_t * vpath_element)
+{
+    (void) vpath_element;
+
+    if (cpio_open_cpio_file (vpath_element->class, super, vpath) == -1)
+        return -1;
+
+    while (TRUE)
+    {
+        ssize_t status;
+
+        status = cpio_read_head (vpath_element->class, super);
+        if (status < 0)
+            return (-1);
+
+        switch (status)
+        {
+        case STATUS_EOF:
+            {
+                message (D_ERROR, MSG_ERROR, _("Unexpected end of file\n%s"),
+                         vfs_path_as_str (vpath));
+                return 0;
+            }
+        case STATUS_OK:
+            continue;
+        case STATUS_TRAIL:
+            break;
+        default:
+            break;
+        }
+        break;
+    }
+
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Remaining functions are exactly same as for tarfs (and were in fact just copied) */
+
+static void *
+cpio_super_check (const vfs_path_t * vpath)
+{
+    static struct stat sb;
+    int stat_result;
+
+    stat_result = mc_stat (vpath, &sb);
+    return (stat_result == 0 ? &sb : NULL);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+cpio_super_same (const vfs_path_element_t * vpath_element, struct vfs_s_super *parc,
+                 const vfs_path_t * vpath, void *cookie)
+{
+    struct stat *archive_stat = cookie; /* stat of main archive */
+
+    (void) vpath_element;
+
+    if (strcmp (parc->name, vfs_path_as_str (vpath)))
+        return 0;
+
+    /* Has the cached archive been changed on the disk? */
+    if (parc != NULL && CPIO_SUPER (parc)->st.st_mtime < archive_stat->st_mtime)
+    {
+        /* Yes, reload! */
+        vfs_cpiofs_ops->free ((vfsid) parc);
+        vfs_rmstamp (vfs_cpiofs_ops, (vfsid) parc);
+        return 2;
+    }
+    /* Hasn't been modified, give it a new timeout */
+    vfs_stamp (vfs_cpiofs_ops, (vfsid) parc);
+    return 1;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static ssize_t
+cpio_read (void *fh, char *buffer, size_t count)
+{
+    vfs_file_handler_t *file = VFS_FILE_HANDLER (fh);
+    struct vfs_class *me = VFS_FILE_HANDLER_SUPER (fh)->me;
+    int fd = CPIO_SUPER (VFS_FILE_HANDLER_SUPER (fh))->fd;
+    off_t begin = file->ino->data_offset;
+    ssize_t res;
+
+    if (mc_lseek (fd, begin + file->pos, SEEK_SET) != begin + file->pos)
+        ERRNOR (EIO, -1);
+
+    count = MIN (count, (size_t) (file->ino->st.st_size - file->pos));
+
+    res = mc_read (fd, buffer, count);
+    if (res == -1)
+        ERRNOR (errno, -1);
+
+    file->pos += res;
+    return res;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static int
+cpio_fh_open (struct vfs_class *me, vfs_file_handler_t * fh, int flags, mode_t mode)
+{
+    (void) fh;
+    (void) mode;
+
+    if ((flags & O_ACCMODE) != O_RDONLY)
+        ERRNOR (EROFS, -1);
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+void
+vfs_init_cpiofs (void)
+{
+    /* FIXME: cpiofs used own temp files */
+    vfs_init_subclass (&cpio_subclass, "cpiofs", VFSF_READONLY, "ucpio");
+    vfs_cpiofs_ops->read = cpio_read;
+    vfs_cpiofs_ops->setctl = NULL;
+    cpio_subclass.archive_check = cpio_super_check;
+    cpio_subclass.archive_same = cpio_super_same;
+    cpio_subclass.new_archive = cpio_new_archive;
+    cpio_subclass.open_archive = cpio_open_archive;
+    cpio_subclass.free_archive = cpio_free_archive;
+    cpio_subclass.fh_open = cpio_fh_open;
+    vfs_register_class (vfs_cpiofs_ops);
+}
+
+/* --------------------------------------------------------------------------------------------- */
diff --git a/src/vfs/cpio/cpio.h b/src/vfs/cpio/cpio.h
new file mode 100644
index 0000000..a00756a
--- /dev/null
+++ b/src/vfs/cpio/cpio.h
@@ -0,0 +1,18 @@
+#ifndef MC__VFS_CPIO_H
+#define MC__VFS_CPIO_H
+
+/*** typedefs(not structures) and defined constants **********************************************/
+
+/*** enums ***************************************************************************************/
+
+/*** structures declarations (and typedefs of structures)*****************************************/
+
+/*** global variables defined in .c file *********************************************************/
+
+/*** declarations of public functions ************************************************************/
+
+void vfs_init_cpiofs (void);
+
+/*** inline functions ****************************************************************************/
+
+#endif /* MC__VFS_CPIO_H */