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tar.h
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1 #ifndef H_TAR
2 #define H_TAR
3
11 typedef struct tarHeader_s * tarHeader;
12
13 /* Tar file constants */
14 # define TAR_MAGIC "ustar" /* ustar and a null */
15 # define TAR_VERSION " " /* Be compatable with GNU tar format */
16
17 #define TAR_BLOCK_SIZE 512
18 #define TAR_MAGIC_LEN 6
19 #define TAR_VERSION_LEN 2
20
21 /* POSIX tar Header Block, from POSIX 1003.1-1990 */
22 #define TAR_NAME_SIZE 100
23
27 struct tarHeader_s { /* byte offset */
28 char name[TAR_NAME_SIZE]; /* 0-99 */
29 char mode[8]; /* 100-107 */ /* mode */
30 char uid[8]; /* 108-115 */ /* uid */
31 char gid[8]; /* 116-123 */ /* gid */
32 char filesize[12]; /* 124-135 */ /* ilesize */
33 char mtime[12]; /* 136-147 */ /* mtime */
34 char checksum[8]; /* 148-155 */ /* checksum */
35 char typeflag; /* 156-156 */
36 char linkname[TAR_NAME_SIZE]; /* 157-256 */
37 char magic[6]; /* 257-262 */ /* magic */
38 char version[2]; /* 263-264 */
39 char uname[32]; /* 265-296 */
40 char gname[32]; /* 297-328 */
41 char devMajor[8]; /* 329-336 */ /* devMajor */
42 char devMinor[8]; /* 337-344 */ /* devMinor */
43 char prefix[155]; /* 345-499 */
44 char padding[12]; /* 500-512 (pad to exactly TAR_BLOCK_SIZE) */
45 };
46
47 /*@unchecked@*/
48 extern int _tar_debug;
49
50 #ifdef __cplusplus
51 extern "C" {
52 #endif
53
60 int tarHeaderRead(void * _iosm, struct stat * st)
61 /*@globals fileSystem, internalState @*/
62 /*@modifies _iosm, *st, fileSystem, internalState @*/;
63
70 int tarHeaderWrite(void * _iosm, struct stat * st)
71 /*@globals fileSystem, internalState @*/
72 /*@modifies _iosm, fileSystem, internalState @*/;
73
79 int tarTrailerWrite(void * _iosm)
80 /*@globals fileSystem, internalState @*/
81 /*@modifies _iosm, fileSystem, internalState @*/;
82
83 #ifdef __cplusplus
84 }
85 #endif
86
87 #endif /* H_TAR */