diff options
Diffstat (limited to 'ubifs-utils')
| -rw-r--r-- | ubifs-utils/Makemodule.am | 1 | ||||
| -rw-r--r-- | ubifs-utils/common/super.c | 123 | ||||
| -rw-r--r-- | ubifs-utils/mkfs.ubifs/mkfs.ubifs.c | 114 |
3 files changed, 124 insertions, 114 deletions
diff --git a/ubifs-utils/Makemodule.am b/ubifs-utils/Makemodule.am index 8af65be..90cc700 100644 --- a/ubifs-utils/Makemodule.am +++ b/ubifs-utils/Makemodule.am @@ -15,6 +15,7 @@ common_SOURCES = \ ubifs-utils/common/key.h \ ubifs-utils/common/lpt.h \ ubifs-utils/common/lpt.c \ + ubifs-utils/common/super.c \ ubifs-utils/common/sign.h \ include/mtd/ubifs-media.h diff --git a/ubifs-utils/common/super.c b/ubifs-utils/common/super.c new file mode 100644 index 0000000..eee0197 --- /dev/null +++ b/ubifs-utils/common/super.c @@ -0,0 +1,123 @@ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include "defs.h" + +/** + * open_ubi - open the libubi. + * @c: the UBIFS file-system description object + * @node: name of the UBI volume character device to fetch information about + * + * This function opens libubi, and initialize device & volume information + * according to @node. Returns %0 in case of success and %-1 in case of failure. + */ +int open_ubi(struct ubifs_info *c, const char *node) +{ + struct stat st; + + if (stat(node, &st) || !S_ISCHR(st.st_mode)) + return -1; + + c->libubi = libubi_open(); + if (!c->libubi) + return -1; + if (ubi_get_vol_info(c->libubi, node, &c->vi)) + goto out_err; + if (ubi_get_dev_info1(c->libubi, c->vi.dev_num, &c->di)) + goto out_err; + + return 0; + +out_err: + close_ubi(c); + return -1; +} + +void close_ubi(struct ubifs_info *c) +{ + if (c->libubi) { + libubi_close(c->libubi); + c->libubi = NULL; + } +} + +/** + * open_target - open the output target. + * @c: the UBIFS file-system description object + * + * Open the output target. The target can be an UBI volume + * or a file. + * + * Returns %0 in case of success and %-1 in case of failure. + */ +int open_target(struct ubifs_info *c) +{ + if (c->libubi) { + c->dev_fd = open(c->dev_name, O_RDWR | O_EXCL); + + if (c->dev_fd == -1) + return sys_errmsg("cannot open the UBI volume '%s'", + c->dev_name); + if (ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 1)) { + close(c->dev_fd); + return sys_errmsg("ubi_set_property(set direct_write) failed"); + } + } else { + c->dev_fd = open(c->dev_name, O_CREAT | O_RDWR | O_TRUNC, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH); + if (c->dev_fd == -1) + return sys_errmsg("cannot create output file '%s'", + c->dev_name); + } + return 0; +} + + +/** + * close_target - close the output target. + * @c: the UBIFS file-system description object + * + * Close the output target. If the target was an UBI + * volume, also close libubi. + * + * Returns %0 in case of success and %-1 in case of failure. + */ +int close_target(struct ubifs_info *c) +{ + if (c->dev_fd >= 0) { + if (c->libubi && ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 0)) + return sys_errmsg("ubi_set_property(clear direct_write) failed"); + if (close(c->dev_fd) == -1) + return sys_errmsg("cannot close the target '%s'", c->dev_name); + } + return 0; +} + +/** + * check_volume_empty - check if the UBI volume is empty. + * @c: the UBIFS file-system description object + * + * This function checks if the UBI volume is empty by looking if its LEBs are + * mapped or not. + * + * Returns %0 in case of success, %1 is the volume is not empty, + * and a negative error code in case of failure. + */ +int check_volume_empty(struct ubifs_info *c) +{ + int lnum, err; + + for (lnum = 0; lnum < c->vi.rsvd_lebs; lnum++) { + err = ubi_is_mapped(c->dev_fd, lnum); + if (err < 0) + return err; + if (err == 1) + return 1; + } + return 0; +} diff --git a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c index 8bff44b..2181595 100644 --- a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c +++ b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c @@ -518,44 +518,6 @@ static long long get_bytes(const char *str) return bytes; } -void close_ubi(struct ubifs_info *c) -{ - if (c->libubi) { - libubi_close(c->libubi); - c->libubi = NULL; - } -} - -/** - * open_ubi - open the libubi. - * @c: the UBIFS file-system description object - * @node: name of the UBI volume character device to fetch information about - * - * This function opens libubi, and initialize device & volume information - * according to @node. Returns %0 in case of success and %-1 in case of failure. - */ -int open_ubi(struct ubifs_info *c, const char *node) -{ - struct stat st; - - if (stat(node, &st) || !S_ISCHR(st.st_mode)) - return -1; - - c->libubi = libubi_open(); - if (!c->libubi) - return -1; - if (ubi_get_vol_info(c->libubi, node, &c->vi)) - goto out_err; - if (ubi_get_dev_info1(c->libubi, c->vi.dev_num, &c->di)) - goto out_err; - - return 0; - -out_err: - close_ubi(c); - return -1; -} - static void select_default_compr(void) { if (c->encrypted) { @@ -2821,82 +2783,6 @@ static int write_orphan_area(void) } /** - * check_volume_empty - check if the UBI volume is empty. - * @c: the UBIFS file-system description object - * - * This function checks if the UBI volume is empty by looking if its LEBs are - * mapped or not. - * - * Returns %0 in case of success, %1 is the volume is not empty, - * and a negative error code in case of failure. - */ -int check_volume_empty(struct ubifs_info *c) -{ - int lnum, err; - - for (lnum = 0; lnum < c->vi.rsvd_lebs; lnum++) { - err = ubi_is_mapped(c->dev_fd, lnum); - if (err < 0) - return err; - if (err == 1) - return 1; - } - return 0; -} - -/** - * open_target - open the output target. - * @c: the UBIFS file-system description object - * - * Open the output target. The target can be an UBI volume - * or a file. - * - * Returns %0 in case of success and %-1 in case of failure. - */ -int open_target(struct ubifs_info *c) -{ - if (c->libubi) { - c->dev_fd = open(c->dev_name, O_RDWR | O_EXCL); - - if (c->dev_fd == -1) - return sys_errmsg("cannot open the UBI volume '%s'", - c->dev_name); - if (ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 1)) { - close(c->dev_fd); - return sys_errmsg("ubi_set_property(set direct_write) failed"); - } - } else { - c->dev_fd = open(c->dev_name, O_CREAT | O_RDWR | O_TRUNC, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH); - if (c->dev_fd == -1) - return sys_errmsg("cannot create output file '%s'", - c->dev_name); - } - return 0; -} - - -/** - * close_target - close the output target. - * @c: the UBIFS file-system description object - * - * Close the output target. If the target was an UBI - * volume, also close libubi. - * - * Returns %0 in case of success and %-1 in case of failure. - */ -int close_target(struct ubifs_info *c) -{ - if (c->dev_fd >= 0) { - if (c->libubi && ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 0)) - return sys_errmsg("ubi_set_property(clear direct_write) failed"); - if (close(c->dev_fd) == -1) - return sys_errmsg("cannot close the target '%s'", c->dev_name); - } - return 0; -} - -/** * init - initialize things. */ static int init(void) |