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#ifndef H_CPIO
#define H_CPIO
/** \file lib/cpio.h
* Structures used to handle cpio payloads within rpm packages.
*
* Warning: Don't think that rpm's cpio implementation behaves just like
* 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).
*
*/
#include <zlib.h>
#include <sys/types.h>
#include <rpmio.h>
/**
* Note: CPIO_CHECK_ERRNO bit is set only if errno is valid. These have to
* be positive numbers or this setting the high bit stuff is a bad idea.
*/
#define CPIOERR_CHECK_ERRNO 0x00008000
#define CPIOERR_BAD_MAGIC (2 )
#define CPIOERR_BAD_HEADER (3 )
#define CPIOERR_OPEN_FAILED (4 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_CHMOD_FAILED (5 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_CHOWN_FAILED (6 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_WRITE_FAILED (7 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_UTIME_FAILED (8 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_UNLINK_FAILED (9 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_SYMLINK_FAILED (11 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_STAT_FAILED (12 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_MKDIR_FAILED (13 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_MKNOD_FAILED (14 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_MKFIFO_FAILED (15 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_LINK_FAILED (16 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_READLINK_FAILED (17 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_READ_FAILED (18 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_COPY_FAILED (19 | CPIOERR_CHECK_ERRNO)
#define CPIOERR_HDR_SIZE (20 )
#define CPIOERR_UNKNOWN_FILETYPE (21 )
#define CPIOERR_MISSING_HARDLINK (22 )
#define CPIOERR_INTERNAL (23 )
#define CPIO_MAP_PATH (1 << 0)
#define CPIO_MAP_MODE (1 << 1)
#define CPIO_MAP_UID (1 << 2)
#define CPIO_MAP_GID (1 << 3)
#define CPIO_FOLLOW_SYMLINKS (1 << 4) /* only for building */
/**
* Defines a single file to be included in a cpio payload.
*/
struct cpioFileMapping {
/*@dependent@*/ const char * archivePath; /*!< Path to store in cpio archive. */
/*@dependent@*/ const char * fsPath; /*!< Location of payload file. */
mode_t finalMode; /*!< Mode of payload file (from header). */
uid_t finalUid; /*!< Uid of payload file (from header). */
gid_t finalGid; /*!< Gid of payload file (from header). */
int mapFlags;
};
/**
* The first argument passed in a cpio progress callback.
*
* Note: When building the cpio payload, only "file" is filled in.
*/
struct cpioCallbackInfo {
/*@dependent@*/ const char * file; /*!< File name being installed. */
long fileSize; /*!< Total file size. */
long fileComplete; /*!< Amount of file unpacked. */
long bytesProcessed; /*!< No. bytes in archive read. */
};
#ifdef __cplusplus
extern "C" {
#endif
/**
*/
typedef void (*cpioCallback) (struct cpioCallbackInfo * filespec, void * data);
/**
* The RPM internal equivalent of the command line "cpio -i".
* If no mappings are passed, this installs everything! If one is passed
* it should be sorted according to cpioFileMapCmp() and only files included
* in the map are installed. Files are installed relative to the current
* directory unless a mapping is given which specifies an absolute
* directory. The mode mapping is only used for the permission bits, not
* for the file type. The owner/group mappings are ignored for the nonroot
* user. If *failedFile is non-NULL on return, it should be free()d.
*/
int cpioInstallArchive(FD_t cfd, const struct cpioFileMapping * mappings,
int numMappings, cpioCallback cb, void * cbData,
/*@out@*/const char ** failedFile);
/**
* The RPM internal equivalent of the command line "cpio -o".
*/
int cpioBuildArchive(FD_t cfd, const struct cpioFileMapping * mappings,
int numMappings, cpioCallback cb, void * cbData,
unsigned int * archiveSize, /*@out@*/const char ** failedFile);
/**
* Compare two cpio file map entries.
* This is designed to be qsort/bsearch compatible.
*/
int cpioFileMapCmp(const void * a, const void * b);
/**
*/
/*@observer@*/ const char *cpioStrerror(int rc);
#ifdef __cplusplus
}
#endif
#endif /* H_CPIO */
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