114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/*
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$Id: udf.c,v 1.8 2005/11/01 03:14:50 rocky Exp $
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Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Access routines */
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#include <cdio/bytesex.h>
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#include "udf_private.h"
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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/** The below variables are trickery to force enum symbol values to be
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recorded in debug symbol tables. They are used to allow one to refer
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to the enumeration value names in the typedefs above in a debugger
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and debugger expressions
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*/
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tag_id_t debug_tagid;
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file_characteristics_t debug_file_characteristics;
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udf_enum1_t debug_udf_enum1;
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icbtag_file_type_enum_t debug_icbtag_file_type_enum;
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ecma_167_enum1_t ecma167_enum1;
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ecma_167_timezone_enum_t debug_ecma_167_timezone_enum;
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/*!
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Returns POSIX mode bitstring for a given file.
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*/
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mode_t
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udf_get_posix_filemode(const udf_dirent_t *p_udf_dirent)
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{
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udf_file_entry_t udf_fe;
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mode_t mode = 0;
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if (udf_get_file_entry(p_udf_dirent, &udf_fe)) {
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uint16_t i_flags;
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uint32_t i_perms;
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i_perms = uint32_from_le(udf_fe.permissions);
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i_flags = uint16_from_le(udf_fe.icb_tag.flags);
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if (i_perms & FE_PERM_U_READ) mode |= S_IRUSR;
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if (i_perms & FE_PERM_U_WRITE) mode |= S_IWUSR;
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if (i_perms & FE_PERM_U_EXEC) mode |= S_IXUSR;
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if (i_perms & FE_PERM_G_READ) mode |= S_IRGRP;
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if (i_perms & FE_PERM_G_WRITE) mode |= S_IWGRP;
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if (i_perms & FE_PERM_G_EXEC) mode |= S_IXGRP;
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if (i_perms & FE_PERM_O_READ) mode |= S_IROTH;
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if (i_perms & FE_PERM_O_WRITE) mode |= S_IWOTH;
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if (i_perms & FE_PERM_O_EXEC) mode |= S_IXOTH;
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switch (udf_fe.icb_tag.file_type) {
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case ICBTAG_FILE_TYPE_DIRECTORY:
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mode |= S_IFDIR;
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break;
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case ICBTAG_FILE_TYPE_REGULAR:
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mode |= S_IFREG;
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break;
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case ICBTAG_FILE_TYPE_SYMLINK:
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mode |= S_IFLNK;
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break;
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case ICBTAG_FILE_TYPE_CHAR:
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mode |= S_IFCHR;
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break;
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case ICBTAG_FILE_TYPE_SOCKET:
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mode |= S_IFSOCK;
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break;
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case ICBTAG_FILE_TYPE_BLOCK:
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mode |= S_IFBLK;
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break;
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default: ;
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};
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if (i_flags & ICBTAG_FLAG_SETUID) mode |= S_ISUID;
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if (i_flags & ICBTAG_FLAG_SETGID) mode |= S_ISGID;
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if (i_flags & ICBTAG_FLAG_STICKY) mode |= S_ISVTX;
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}
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return mode;
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}
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/*!
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Return the partition number of the the opened udf handle. -1
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Is returned if we have an error.
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*/
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int16_t udf_get_part_number(const udf_t *p_udf)
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{
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if (!p_udf) return -1;
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return p_udf->i_partition;
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}
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