diff options
Diffstat (limited to 'tools/libxl/libxl_utils.h')
| -rw-r--r-- | tools/libxl/libxl_utils.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h index 05fa4e368f..65e7e31d23 100644 --- a/tools/libxl/libxl_utils.h +++ b/tools/libxl/libxl_utils.h @@ -26,5 +26,23 @@ int libxl_is_stubdom(struct libxl_ctx *ctx, uint32_t domid, uint32_t *target_dom int libxl_create_logfile(struct libxl_ctx *ctx, char *name, char **full_name); int libxl_string_to_phystype(struct libxl_ctx *ctx, char *s, libxl_disk_phystype *phystype); +int libxl_read_file_contents(struct libxl_ctx *ctx, const char *filename, + void **data_r, int *datalen_r); + /* Reads the contents of the plain file filename into a mallocd + * buffer. Returns 0 or errno. Any errors other than ENOENT are logged. + * If the file is empty, *data_r and *datalen_r are set to 0. + * On error, *data_r and *datalen_r are undefined. + * data_r and/or datalen_r may be 0. + */ + +int libxl_read_exactly(struct libxl_ctx *ctx, int fd, void *data, ssize_t sz, + const char *filename, const char *what); +int libxl_write_exactly(struct libxl_ctx *ctx, int fd, const void *data, + ssize_t sz, const char *filename, const char *what); + /* Returns 0 or errno. If file is truncated on reading, returns + * EPROTO and you have no way to tell how much was read. Errors are + * logged using filename (which is only used for logging) and what + * (which may be 0). */ + #endif |