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#ifndef H_CPIO
#define H_CPIO
/** \ingroup payload
* \file lib/cpio.h
* Structures used to handle cpio payloads within rpm packages.
*
* @warning Rpm's cpio implementation may be different than standard cpio.
* The implementation is pretty close, but it has some behaviors which are
* more to RPM's liking. I tried to document the differing behavior in cpio.c,
* but I may have missed some (ewt).
*
*/
/** \ingroup payload
* @note CPIO_CHECK_ERRNO bit is set only if errno is valid.
*/
#define CPIOERR_CHECK_ERRNO 0x00008000
/** \ingroup payload
*/
enum cpioErrorReturns {
CPIOERR_BAD_MAGIC = 2,
CPIOERR_BAD_HEADER = 3,
CPIOERR_OPEN_FAILED = 4 | CPIOERR_CHECK_ERRNO,
CPIOERR_CHMOD_FAILED = 5 | CPIOERR_CHECK_ERRNO,
CPIOERR_CHOWN_FAILED = 6 | CPIOERR_CHECK_ERRNO,
CPIOERR_WRITE_FAILED = 7 | CPIOERR_CHECK_ERRNO,
CPIOERR_UTIME_FAILED = 8 | CPIOERR_CHECK_ERRNO,
CPIOERR_UNLINK_FAILED = 9 | CPIOERR_CHECK_ERRNO,
CPIOERR_RENAME_FAILED = 10 | CPIOERR_CHECK_ERRNO,
CPIOERR_SYMLINK_FAILED = 11 | CPIOERR_CHECK_ERRNO,
CPIOERR_STAT_FAILED = 12 | CPIOERR_CHECK_ERRNO,
CPIOERR_LSTAT_FAILED = 13 | CPIOERR_CHECK_ERRNO,
CPIOERR_MKDIR_FAILED = 14 | CPIOERR_CHECK_ERRNO,
CPIOERR_RMDIR_FAILED = 15 | CPIOERR_CHECK_ERRNO,
CPIOERR_MKNOD_FAILED = 16 | CPIOERR_CHECK_ERRNO,
CPIOERR_MKFIFO_FAILED = 17 | CPIOERR_CHECK_ERRNO,
CPIOERR_LINK_FAILED = 18 | CPIOERR_CHECK_ERRNO,
CPIOERR_READLINK_FAILED = 19 | CPIOERR_CHECK_ERRNO,
CPIOERR_READ_FAILED = 20 | CPIOERR_CHECK_ERRNO,
CPIOERR_COPY_FAILED = 21 | CPIOERR_CHECK_ERRNO,
CPIOERR_LSETFCON_FAILED = 22 | CPIOERR_CHECK_ERRNO,
CPIOERR_HDR_SIZE = 23,
CPIOERR_HDR_TRAILER = 24,
CPIOERR_UNKNOWN_FILETYPE= 25,
CPIOERR_MISSING_HARDLINK= 26,
CPIOERR_DIGEST_MISMATCH = 27,
CPIOERR_INTERNAL = 28,
CPIOERR_UNMAPPED_FILE = 29,
CPIOERR_ENOENT = 30,
CPIOERR_ENOTEMPTY = 31,
CPIOERR_SETCAP_FAILED = 32 | CPIOERR_CHECK_ERRNO,
};
/*
* Size limit for individual files in "new ascii format" cpio archives.
* The max size of the entire archive is unlimited from cpio POV,
* but subject to filesystem limitations.
*/
#define CPIO_FILESIZE_MAX UINT32_MAX
#define CPIO_NEWC_MAGIC "070701"
#define CPIO_CRC_MAGIC "070702"
#define CPIO_TRAILER "TRAILER!!!"
/** \ingroup payload
* Cpio archive header information.
*/
struct cpioCrcPhysicalHeader {
char magic[6];
char inode[8];
char mode[8];
char uid[8];
char gid[8];
char nlink[8];
char mtime[8];
char filesize[8];
char devMajor[8];
char devMinor[8];
char rdevMajor[8];
char rdevMinor[8];
char namesize[8];
char checksum[8]; /* ignored !! */
};
#define PHYS_HDR_SIZE 110 /* Don't depend on sizeof(struct) */
typedef struct rpmcpio_s * rpmcpio_t;
#ifdef __cplusplus
extern "C" {
#endif
/**
* Create CPIO file object
* @param fd file
* @param mode XXX
* @return CPIO object
**/
rpmcpio_t rpmcpioOpen(FD_t fd, char mode);
int rpmcpioClose(rpmcpio_t cpio);
off_t rpmcpioTell(rpmcpio_t cpio);
/**
* Write cpio header.
* @retval fsm file path and stat info
* @param st
* @return 0 on success
*/
RPM_GNUC_INTERNAL
int rpmcpioHeaderWrite(rpmcpio_t cpio, char * path, struct stat * st);
ssize_t rpmcpioWrite(rpmcpio_t cpio, void * buf, size_t size);
/**
* Read cpio header.
* @retval fsm file path and stat info
* @retval st
* @return 0 on success
*/
RPM_GNUC_INTERNAL
int rpmcpioHeaderRead(rpmcpio_t cpio, char ** path, struct stat * st);
ssize_t rpmcpioRead(rpmcpio_t cpio, void * buf, size_t size);
/** \ingroup payload
* Return formatted error message on payload handling failure.
* @param rc error code
* @return formatted error string
*/
/* XXX should be RPM_GNUC_INTERNAL too but build/pack.c uses */
const char * rpmcpioStrerror(int rc);
#ifdef __cplusplus
}
#endif
#endif /* H_CPIO */
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