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PC_DeTar11.lha
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detar.h
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1988-01-23
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2KB
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81 lines
/*
* MSDOS TAR Extractor
*/
#define RECORDSIZE 512
#define NAMSIZ 100
#define TUNMLEN 32
#define TGNMLEN 32
/*
* Header block on tape.
*
* no byte swapping
*/
union record {
char charptr[RECORDSIZE];
struct {
char name[NAMSIZ];
char mode[8];
char uid[8];
char gid[8];
char size[12];
char mtime[12];
char chksum[8];
char linkflag;
char linkname[NAMSIZ];
char magic[8];
char uname[TUNMLEN];
char gname[TGNMLEN];
char devmajor[8];
char devminor[8];
} header;
};
#define CHKBLANKS " " /* Checksum: 8 blanks, no null */
#define TMAGIC "ustar " /* Majic: 7 bytes and a null */
/* The linkflag defines the type of file */
#define LF_OLDNORMAL '\0' /* Normal disk file, Unix compat */
#define LF_NORMAL '0' /* Normal disk file */
#define LF_LINK '1' /* Link to previously dumped file */
#define LF_SYMLINK '2' /* Symbolic link */
#define LF_CHR '3' /* Character special file */
#define LF_BLK '4' /* Block special file */
#define LF_DIR '5' /* Directory */
#define LF_FIFO '6' /* FIFO special file */
#define LF_CONTIG '7' /* Contiguous file */
/*
* Unix Stat Header (K&R)
*
*/
struct stat {
int st_dev;
int st_ino;
int st_mode;
int st_nlink;
int st_uid;
int st_gid;
int st_rdev;
long st_size;
long st_atime;
long st_mtime;
long st_ctime;
};
#define S_IFMT 0160000
#define S_IFDIR 0040000
#define S_IFCHR 0020000
#define S_IFBLK 0060000
#define S_IFREG 0100000
#define S_ISUID 0004000
#define S_ISGID 0002000
#define S_ISVTX 0001000
#define S_IREAD 0000400
#define S_IWRITE 0000200
#define S_IEXEC 0000100