/* * This file has been modified for the cdrkit suite. * * The behaviour and appearence of the program code below can differ to a major * extent from the version distributed by the original author(s). * * For details, see Changelog file distributed with the cdrkit package. If you * received this file from another source then ask the distributing person for * a log of modifications. * */ /* @(#)genisoimage.h 1.95 05/05/01 joerg */ /* * Header file genisoimage.h - assorted structure definitions and typecasts. * * Written by Eric Youngdale (1993). * * Copyright 1993 Yggdrasil Computing, Incorporated * Copyright (c) 1999,2000-2003 J. Schilling * * This program 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 2, or (at your option) * any later version. * * This program 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, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* APPLE_HYB James Pearson j.pearson@ge.ucl.ac.uk 23/2/2000 */ #define APPID_DEFAULT "GENISOIMAGE ISO 9660/HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE (C) 1997-2006 J.PEARSON/J.SCHILLING (C) 2006-2007 CDRKIT TEAM" #include /* Must be before stdio.h for LARGEFILE support */ #include #include #include #include /* Needed for for LARGEFILE support */ #include #include #include #include #include #include "scsi.h" #ifdef JIGDO_TEMPLATE #include "jte.h" #endif #ifdef DVD_VIDEO #ifndef UDF #define UDF #endif #endif /*#if _LFS_LARGEFILE*/ #ifdef HAVE_LARGEFILES /* * XXX Hack until fseeko()/ftello() are available everywhere or until * XXX we know a secure way to let autoconf ckeck for fseeko()/ftello() * XXX without defining FILE_OFFSETBITS to 64 in confdefs.h */ # define fseek fseeko # define ftell ftello #endif #ifndef HAVE_LSTAT #ifndef VMS #define lstat stat #endif #endif #include "iso9660.h" #include "defaults.h" #include extern struct unls_table *in_nls; /* input UNICODE conversion table */ extern struct unls_table *out_nls; /* output UNICODE conversion table */ extern struct unls_table *hfs_inls; /* input HFS UNICODE conversion table */ extern struct unls_table *hfs_onls; /* output HFS UNICODE conversion table */ #ifdef APPLE_HYB #include "mactypes.h" #include "hfs.h" struct hfs_info { unsigned char finderinfo[32]; char name[HFS_MAX_FLEN + 1]; /* should have fields for dates here as well */ char *keyname; struct hfs_info *next; }; #endif /* APPLE_HYB */ struct directory_entry { struct directory_entry *next; struct directory_entry *jnext; struct iso_directory_record isorec; unsigned int starting_block; off_t size; unsigned short priority; unsigned char jreclen; /* Joliet record len */ char *name; char *table; char *whole_name; struct directory *filedir; struct directory_entry *parent_rec; unsigned int de_flags; ino_t inode; /* Used in the hash table */ dev_t dev; /* Used in the hash table */ unsigned char *rr_attributes; unsigned int rr_attr_size; unsigned int total_rr_attr_size; unsigned int got_rr_name; #ifdef APPLE_HYB struct directory_entry *assoc; /* entry has a resource fork */ hfsdirent *hfs_ent; /* HFS parameters */ off_t hfs_off; /* offset to real start of fork */ int hfs_type; /* type of HFS Unix file */ #endif /* APPLE_HYB */ #ifdef SORTING int sort; /* sort weight for entry */ #endif /* SORTING */ #ifdef UDF int udf_file_entry_sector; /* also used as UDF unique ID */ #endif uint64_t realsize; }; struct file_hash { struct file_hash *next; ino_t inode; /* Used in the hash table */ dev_t dev; /* Used in the hash table */ nlink_t nlink; /* Used to compute new link count */ unsigned int starting_block; off_t size; #ifdef SORTING struct directory_entry *de; #endif /* SORTING */ }; /* * This structure is used to control the output of fragments to the cdrom * image. Everything that will be written to the output image will eventually * go through this structure. There are two pieces - first is the sizing where * we establish extent numbers for everything, and the second is when we actually * generate the contents and write it to the output image. * * This makes it trivial to extend genisoimage to write special things in the image. * All you need to do is hook an additional structure in the list, and the rest * works like magic. * * The three passes each do the following: * * The 'size' pass determines the size of each component and assigns the extent number * for that component. * * The 'generate' pass will adjust the contents and pointers as required now that extent * numbers are assigned. In some cases, the contents of the record are also generated. * * The 'write' pass actually writes the data to the disc. */ struct output_fragment { struct output_fragment *of_next; int (*of_size)(int); int (*of_generate)(void); int (*of_write)(FILE *); char *of_name; /* Textual description */ unsigned int of_start_extent; /* For consist check */ }; extern struct output_fragment *out_list; extern struct output_fragment *out_tail; extern struct output_fragment startpad_desc; extern struct output_fragment voldesc_desc; extern struct output_fragment xvoldesc_desc; extern struct output_fragment joliet_desc; extern struct output_fragment torito_desc; extern struct output_fragment end_vol; extern struct output_fragment version_desc; extern struct output_fragment pathtable_desc; extern struct output_fragment jpathtable_desc; extern struct output_fragment dirtree_desc; extern struct output_fragment dirtree_clean; extern struct output_fragment jdirtree_desc; extern struct output_fragment extension_desc; extern struct output_fragment files_desc; extern struct output_fragment interpad_desc; extern struct output_fragment endpad_desc; extern struct output_fragment sunboot_desc; extern struct output_fragment sunlabel_desc; extern struct output_fragment genboot_desc; extern struct output_fragment strfile_desc; extern struct output_fragment strdir_desc; extern struct output_fragment strpath_desc; extern struct output_fragment alphaboot_desc; extern struct output_fragment hppaboot_desc; extern struct output_fragment alpha_hppa_boot_desc; extern struct output_fragment mipsboot_desc; extern struct output_fragment mipselboot_desc; #ifdef APPLE_HYB extern struct output_fragment hfs_desc; #endif /* APPLE_HYB */ #ifdef DVD_VIDEO /* * This structure holds the information necessary to create a valid * DVD-Video image. Basically it's how much to pad the files so the * file offsets described in the video_ts.ifo and vts_xx_0.ifo are * the correct one in the image that we create. */ typedef struct { int realsize_ifo; int realsize_menu; int realsize_bup; int size_ifo; int size_menu; int size_title; int size_bup; int pad_ifo; int pad_menu; int pad_title; int pad_bup; int number_of_vob_files; int realsize_vob[10]; } title_set_t; typedef struct { int num_titles; title_set_t *title_set; } title_set_info_t; #endif /* DVD_VIDEO */ /* * This structure describes one complete directory. It has pointers * to other directories in the overall tree so that it is clear where * this directory lives in the tree, and it also must contain pointers * to the contents of the directory. Note that subdirectories of this * directory exist twice in this stucture. Once in the subdir chain, * and again in the contents chain. */ struct directory { struct directory *next; /* Next directory at same level as this one */ struct directory *subdir; /* First subdirectory in this directory */ struct directory *parent; struct directory_entry *contents; struct directory_entry *jcontents; struct directory_entry *self; char *whole_name; /* Entire path */ char *de_name; /* Entire path */ unsigned int ce_bytes; /* Number of bytes of CE entries read */ /* for this dir */ unsigned int depth; unsigned int size; unsigned int extent; unsigned int jsize; unsigned int jextent; unsigned int path_index; unsigned int jpath_index; unsigned short dir_flags; unsigned short dir_nlink; #ifdef APPLE_HYB hfsdirent *hfs_ent; /* HFS parameters */ struct hfs_info *hfs_info; /* list of info for all entries in dir */ #endif /* APPLE_HYB */ #ifdef SORTING int sort; /* sort weight for child files */ #endif /* SORTING */ }; struct deferred_write { struct deferred_write *next; char *table; unsigned int extent; off_t size; char *name; struct directory_entry *s_entry; unsigned int pad; off_t off; }; struct eltorito_boot_entry_info { struct eltorito_boot_entry_info *next; char *boot_image; int not_bootable; int no_emul_boot; int hard_disk_boot; int boot_info_table; int load_size; int load_addr; }; extern int goof; extern struct directory *root; extern struct directory *reloc_dir; extern unsigned int next_extent; extern unsigned int last_extent; extern unsigned int last_extent_written; extern unsigned int session_start; extern unsigned int path_table_size; extern unsigned int path_table[4]; extern unsigned int path_blocks; extern char *path_table_l; extern char *path_table_m; extern unsigned int jpath_table_size; extern unsigned int jpath_table[4]; extern unsigned int jpath_blocks; extern char *jpath_table_l; extern char *jpath_table_m; extern struct iso_directory_record root_record; extern struct iso_directory_record jroot_record; extern int check_oldnames; extern int check_session; extern int use_eltorito; extern int hard_disk_boot; extern int not_bootable; extern int no_emul_boot; extern int load_addr; extern int load_size; extern int boot_info_table; extern int use_RockRidge; extern int osecsize; extern int use_XA; extern int use_Joliet; extern int rationalize; extern int rationalize_uid; extern int rationalize_gid; extern int rationalize_filemode; extern int rationalize_dirmode; extern uid_t uid_to_use; extern gid_t gid_to_use; extern int filemode_to_use; extern int dirmode_to_use; extern int new_dir_mode; extern int follow_links; extern int cache_inodes; extern int verbose; extern int debug; extern int gui; extern int all_files; extern int generate_tables; extern int print_size; extern int split_output; extern int use_graft_ptrs; extern int jhide_trans_tbl; extern int hide_rr_moved; extern int omit_period; extern int omit_version_number; extern int no_rr; extern int transparent_compression; extern Uint RR_relocation_depth; extern int iso9660_level; extern int iso9660_namelen; extern int full_iso9660_filenames; extern int relaxed_filenames; extern int allow_lowercase; extern int allow_multidot; extern int iso_translate; extern int allow_leading_dots; extern int use_fileversion; extern int split_SL_component; extern int split_SL_field; extern char *trans_tbl; char *outfile; #define JMAX 64 /* maximum Joliet file name length (spec) */ #define JLONGMAX 103 /* out of spec Joliet file name length */ extern int jlen; /* selected maximum Joliet file name length */ #ifdef DVD_VIDEO extern int dvd_video; #endif /* DVD_VIDEO */ #ifdef APPLE_HYB extern int apple_hyb; /* create HFS hybrid */ extern int apple_ext; /* use Apple extensions */ extern int apple_both; /* common flag (for above) */ extern int hfs_extra; /* extra ISO extents (hfs_ce_size) */ extern hce_mem *hce; /* libhfs/genisoimage extras */ extern int use_mac_name; /* use Mac name for ISO9660/Joliet/RR */ extern int create_dt; /* create the Desktp files */ extern char *hfs_boot_file; /* name of HFS boot file */ extern char *magic_filename; /* magic file for CREATOR/TYPE matching */ extern int hfs_last; /* order in which to process map/magic files */ extern char *deftype; /* default Apple TYPE */ extern char *defcreator; /* default Apple CREATOR */ extern int gen_pt; /* generate HFS partition table */ extern char *autoname; /* Autostart filename */ extern int afe_size; /* Apple File Exchange block size */ extern char *hfs_volume_id; /* HFS volume ID */ extern int icon_pos; /* Keep Icon position */ extern int hfs_lock; /* lock HFS volume (read-only) */ extern char *hfs_bless; /* name of folder to 'bless' (System Folder) */ extern char *hfs_parms; /* low level HFS parameters */ #define MAP_LAST 1 /* process magic then map file */ #define MAG_LAST 2 /* process map then magic file */ #ifndef PREP_BOOT #define PREP_BOOT #endif /* PREP_BOOT */ #ifdef PREP_BOOT extern char *prep_boot_image[4]; extern int use_prep_boot; extern int use_chrp_boot; #endif /* PREP_BOOT */ #endif /* APPLE_HYB */ #ifdef SORTING extern int do_sort; #endif /* SORTING */ /* tree.c */ extern int stat_filter(char *, struct stat *); extern int lstat_filter(char *, struct stat *); extern int sort_tree(struct directory *); extern struct directory * find_or_create_directory(struct directory *, const char *, struct directory_entry *self, int); extern void finish_cl_pl_entries(void); extern int scan_directory_tree(struct directory *this_dir, char *path, struct directory_entry *self); #ifdef APPLE_HYB extern int insert_file_entry(struct directory *, char *, char *, int); #else extern int insert_file_entry(struct directory *, char *, char *); #endif /* APPLE_HYB */ extern void generate_iso9660_directories(struct directory *, FILE *); extern void dump_tree(struct directory * node); extern struct directory_entry * search_tree_file(struct directory * node, char *filename); extern void update_nlink_field(struct directory * node); extern void init_fstatbuf(void); extern struct stat root_statbuf; extern struct stat fstatbuf; /* eltorito.c */ extern void init_boot_catalog(const char *path); extern void insert_boot_cat(void); extern void get_boot_entry(void); extern void new_boot_entry(void); /* boot.c */ extern void sparc_boot_label(char *label); extern void sunx86_boot_label(char *label); extern void scan_sparc_boot(char *files); extern void scan_sunx86_boot(char *files); extern int make_sun_label(void); extern int make_sunx86_label(void); /* boot-alpha.c */ extern int add_boot_alpha_filename(char *filename); /* boot-hppa.c */ extern int add_boot_hppa_cmdline(char *cmdline); extern int add_boot_hppa_kernel_32(char *filename); extern int add_boot_hppa_kernel_64(char *filename); extern int add_boot_hppa_bootloader(char *filename); extern int add_boot_hppa_ramdisk(char *filename); /* boot-mips.c */ extern int add_boot_mips_filename(char *filename); /* boot-mipsel.c */ extern int add_boot_mipsel_filename(char *filename); /* rsync.c */ extern unsigned long long rsync64(unsigned char *mem, size_t size); /* write.c */ extern int get_731(char *); extern int get_732(char *); extern int get_733(char *); extern int isonum_733(unsigned char *); extern void set_723(char *, unsigned int); extern void set_731(char *, unsigned int); extern void set_721(char *, unsigned int); extern void set_733(char *, unsigned int); extern int sort_directory(struct directory_entry **, int); extern void generate_one_directory(struct directory *, FILE *); extern void memcpy_max(char *, char *, int); extern int oneblock_size(int starting_extent); extern struct iso_primary_descriptor vol_desc; extern void xfwrite(void *buffer, int size, int count, FILE *file, int submode, BOOL islast); extern void set_732(char *pnt, unsigned int i); extern void set_722(char *pnt, unsigned int i); extern void outputlist_insert(struct output_fragment * frag); #ifdef APPLE_HYB extern Ulong get_adj_size(int Csize); extern int adj_size(int Csize, int start_extent, int extra); extern void adj_size_other(struct directory * dpnt); extern int insert_padding_file(int size); extern int gen_mac_label(struct deferred_write *); #ifdef PREP_BOOT extern void gen_prepboot_label(unsigned char *); #endif /* PREP_BOOT */ #endif /* APPLE_HYB */ /* multi.c */ extern FILE *in_image; extern int open_merge_image(char *path); extern int close_merge_image(void); extern struct iso_directory_record * merge_isofs(char *path); extern unsigned char *parse_xa(unsigned char *pnt, int *lenp, struct directory_entry *dpnt); extern int rr_flags(struct iso_directory_record *idr); extern int merge_previous_session(struct directory *, struct iso_directory_record *, char *, char *); extern int get_session_start(int *); /* joliet.c */ #ifdef UDF # ifdef USE_ICONV extern size_t convert_to_unicode (unsigned char *buffer, int size, char *source, struct unls_table *inls); # else extern void convert_to_unicode (unsigned char *buffer, int size, char *source, struct unls_table *inls); # endif extern int joliet_strlen (const char *string, struct unls_table *inls); #endif extern unsigned char conv_charset(unsigned char, struct unls_table *, struct unls_table *); extern int joliet_sort_tree(struct directory * node); /* match.c */ extern int matches(char *); extern int add_match(char *); /* files.c */ struct dirent *readdir_add_files(char **, char *, DIR *); /* name.c */ extern void iso9660_check(struct iso_directory_record *idr, struct directory_entry *ndr); extern int iso9660_file_length(const char *name, struct directory_entry *sresult, int flag); /* various */ extern int iso9660_date(char *, time_t); extern void add_hash(struct directory_entry *); extern struct file_hash *find_hash(dev_t, ino_t); extern void flush_hash(void); extern void add_directory_hash(dev_t, ino_t); extern struct file_hash *find_directory_hash(dev_t, ino_t); extern void flush_file_hash(void); extern int delete_file_hash(struct directory_entry *); extern struct directory_entry *find_file_hash(char *); extern void add_file_hash(struct directory_entry *); extern int generate_xa_rr_attributes(char *, char *, struct directory_entry *, struct stat *, struct stat *, int deep_flag); extern char *generate_rr_extension_record(char *id, char *descriptor, char *source, int *size); extern int check_prev_session(struct directory_entry **, int len, struct directory_entry *, struct stat *, struct stat *, struct directory_entry **); extern void match_cl_re_entries(void); extern void finish_cl_pl_for_prev_session(void); extern char *find_rr_attribute(unsigned char *pnt, int len, char *attr_type); #ifdef APPLE_HYB /* volume.c */ extern int make_mac_volume(struct directory * dpnt, int start_extent); extern int write_fork(hfsfile * hfp, long tot); /* apple.c */ extern void del_hfs_info(struct hfs_info *); extern int get_hfs_dir(char *, char *, struct directory_entry *); extern int get_hfs_info(char *, char *, struct directory_entry *); extern int get_hfs_rname(char *, char *, char *); extern int hfs_exclude(char *); extern void print_hfs_info(struct directory_entry *); extern void hfs_init(char *, unsigned short, unsigned int); extern void delete_rsrc_ent(struct directory_entry *); extern void clean_hfs(void); extern void perr(char *); extern void set_root_info(char *); /* desktop.c */ extern int make_desktop(hfsvol *, int); /* mac_label.c */ #ifdef _MAC_LABEL_H #ifdef PREP_BOOT extern void gen_prepboot_label(MacLabel * mac_label); #endif extern int gen_mac_label(defer *); #endif extern int autostart(void); /* libfile */ extern char *get_magic_match(const char *); extern void clean_magic(void); #endif /* APPLE_HYB */ extern char *extension_record; extern int extension_record_extent; extern int n_data_extents; /* * These are a few goodies that can be specified on the command line, and are * filled into the root record */ extern char *preparer; extern char *publisher; extern char *copyright; extern char *biblio; extern char *abstract; extern char *appid; extern char *volset_id; extern char *system_id; extern char *volume_id; extern char *boot_catalog; extern char *boot_image; extern char *genboot_image; extern int ucs_level; extern int volume_set_size; extern int volume_sequence_number; extern struct eltorito_boot_entry_info *first_boot_entry; extern struct eltorito_boot_entry_info *last_boot_entry; extern struct eltorito_boot_entry_info *current_boot_entry; extern char *findgequal(char *); extern void *e_malloc(size_t); /* * Note: always use these macros to avoid problems. * * ISO_ROUND_UP(X) may cause an integer overflow and thus give * incorrect results. So avoid it if possible. * * ISO_BLOCKS(X) is overflow safe. Prefer this when ever it is possible. */ #define SECTOR_SIZE (2048) #define ISO_ROUND_UP(X) (((X) + (SECTOR_SIZE - 1)) & ~(SECTOR_SIZE - 1)) #define ISO_BLOCKS(X) (((X) / SECTOR_SIZE) + (((X)%SECTOR_SIZE)?1:0)) #define ROUND_UP(X, Y) (((X + (Y - 1)) / Y) * Y) #ifdef APPLE_HYB /* * ISO blocks == 2048, HFS blocks == 512 */ #define HFS_BLK_CONV (SECTOR_SIZE/HFS_BLOCKSZ) #define HFS_ROUND_UP(X) ISO_ROUND_UP(((X)*HFS_BLOCKSZ)) /* XXX ??? */ #define HFS_BLOCKS(X) (ISO_BLOCKS(X) * HFS_BLK_CONV) #define USE_MAC_NAME(E) (use_mac_name && ((E)->hfs_ent != NULL) && (E)->hfs_type) #endif /* APPLE_HYB */ /* * Rock Ridge defines */ #define NEED_RE 1 /* Need Relocated Direcotry */ #define NEED_PL 2 /* Need Parent link */ #define NEED_CL 4 /* Need Child link */ #define NEED_CE 8 /* Need Continuation Area */ #define NEED_SP 16 /* Need SUSP record */ #define RR_FLAG_PX 1 /* POSIX attributes */ #define RR_FLAG_PN 2 /* POSIX device number */ #define RR_FLAG_SL 4 /* Symlink */ #define RR_FLAG_NM 8 /* Alternate Name */ #define RR_FLAG_CL 16 /* Child link */ #define RR_FLAG_PL 32 /* Parent link */ #define RR_FLAG_RE 64 /* Relocated Direcotry */ #define RR_FLAG_TF 128 /* Time stamp */ #define RR_FLAG_SP 1024 /* SUSP record */ #define RR_FLAG_AA 2048 /* Apple Signature record */ #define RR_FLAG_XA 4096 /* XA signature record */ #define RR_FLAG_CE 8192 /* SUSP Continuation aerea */ #define RR_FLAG_ER 16384 /* Extension record for RR signature */ #define RR_FLAG_RR 32768 /* RR Signature in every file */ #define RR_FLAG_ZF 65535 /* Linux compression extension */ #define PREV_SESS_DEV (sizeof (dev_t) >= 4 ? 0x7ffffffd : 0x7ffd) #define TABLE_INODE (sizeof (ino_t) >= 4 ? 0x7ffffffe : 0x7ffe) #define UNCACHED_INODE (sizeof (ino_t) >= 4 ? 0x7fffffff : 0x7fff) #define UNCACHED_DEVICE (sizeof (dev_t) >= 4 ? 0x7fffffff : 0x7fff) #ifdef VMS #define STAT_INODE(X) (X.st_ino[0]) #define PATH_SEPARATOR ']' #define SPATH_SEPARATOR "" #else #define STAT_INODE(X) (X.st_ino) #define PATH_SEPARATOR '/' #define SPATH_SEPARATOR "/" #endif /* * When using multi-session, indicates that we can reuse the * TRANS.TBL information for this directory entry. If this flag * is set for all entries in a directory, it means we can just * reuse the TRANS.TBL and not generate a new one. */ #define SAFE_TO_REUSE_TABLE_ENTRY 0x01 /* de_flags only */ #define DIR_HAS_DOT 0x02 /* dir_flags only */ #define DIR_HAS_DOTDOT 0x04 /* dir_flags only */ #define INHIBIT_JOLIET_ENTRY 0x08 #define INHIBIT_RR_ENTRY 0x10 /* not used */ #define RELOCATED_DIRECTORY 0x20 /* de_flags only */ #define INHIBIT_ISO9660_ENTRY 0x40 #define MEMORY_FILE 0x80 /* de_flags only */ #define HIDDEN_FILE 0x100 /* de_flags only */ #define DIR_WAS_SCANNED 0x200 /* dir_flags only */ /* * Volume sequence number to use in all of the iso directory records. */ #define DEF_VSN 1 /* * Make sure we have a definition for this. If not, take a very conservative * guess. * POSIX requires the max pathname component lenght to be defined in limits.h * If variable, it may be undefined. If undefined, there should be * a definition for _POSIX_NAME_MAX in limits.h or in unistd.h * As _POSIX_NAME_MAX is defined to 14, we cannot use it. * XXX Eric's wrong comment: * XXX From what I can tell SunOS is the only one with this trouble. */ #ifdef HAVE_LIMITS_H #include #endif #ifndef NAME_MAX #ifdef FILENAME_MAX #define NAME_MAX FILENAME_MAX #else #define NAME_MAX 256 #endif #endif #ifndef PATH_MAX #ifdef FILENAME_MAX #define PATH_MAX FILENAME_MAX #else #define PATH_MAX 1024 #endif #endif /* * XXX JS: Some structures have odd lengths! * Some compilers (e.g. on Sun3/mc68020) padd the structures to even length. * For this reason, we cannot use sizeof (struct iso_path_table) or * sizeof (struct iso_directory_record) to compute on disk sizes. * Instead, we use offsetof(..., name) and add the name size. * See iso9660.h */ #ifndef offsetof #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) #endif /* * EB: various shared stuff */ extern char *merge_warn_msg;