diff options
Diffstat (limited to 'lib/cpio.h')
| -rw-r--r-- | lib/cpio.h | 113 |
1 files changed, 24 insertions, 89 deletions
diff --git a/lib/cpio.h b/lib/cpio.h index 7364caf27..b33b5fc13 100644 --- a/lib/cpio.h +++ b/lib/cpio.h @@ -12,81 +12,6 @@ * */ -/** \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, - CPIOERR_FILE_SIZE = 33, -}; - -/* - * 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 @@ -109,33 +34,43 @@ rpmcpio_t rpmcpioFree(rpmcpio_t cpio); /** * Write cpio header. - * @retval fsm file path and stat info - * @param st + * @param cpio cpio archive + * @param path file name + * @param st stat struct with meta data * @return 0 on success */ RPM_GNUC_INTERNAL int rpmcpioHeaderWrite(rpmcpio_t cpio, char * path, struct stat * st); +RPM_GNUC_INTERNAL +int rpmcpioStrippedHeaderWrite(rpmcpio_t cpio, int fx, off_t fsize); -ssize_t rpmcpioWrite(rpmcpio_t cpio, void * buf, size_t size); +ssize_t rpmcpioWrite(rpmcpio_t cpio, const void * buf, size_t size); /** - * Read cpio header. + * Read cpio header. Iff fx is returned as -1 a cpio header was read + * and the file name is found in path. Otherwise a stripped header was read + * and the fx is the number of the file in the header/rpmfi. In this case + * rpmcpioSetExpectedFileSize() needs to be called with the file size of the + * payload content - with may be zero for hard links, directory or other + * special files. * @retval fsm file path and stat info - * @retval st + * @retval path path of the file + * @retval fx number in the header of the file read * @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); +int rpmcpioHeaderRead(rpmcpio_t cpio, char ** path, int * fx); -/** \ingroup payload - * Return formatted error message on payload handling failure. - * @param rc error code - * @return formatted error string +/** + * Tell the cpio object the expected file size in the payload. + * The size must be zero for all but the last of hard linked files, + * directories and special files. + * This is needed after reading a stripped cpio header! See above. */ -/* XXX should be RPM_GNUC_INTERNAL too but build/pack.c uses */ -const char * rpmcpioStrerror(int rc); +RPM_GNUC_INTERNAL +void rpmcpioSetExpectedFileSize(rpmcpio_t cpio, off_t fsize); + +ssize_t rpmcpioRead(rpmcpio_t cpio, void * buf, size_t size); #ifdef __cplusplus } |