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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
commit | cfe5e3905201349e9cf3f95d52ff4bd100bde37d (patch) | |
tree | d0baf160cbee3195249d095f85e52d20c21acf02 /libfdisk/src/field.c | |
parent | Initial commit. (diff) | |
download | util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.tar.xz util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.zip |
Adding upstream version 2.39.3.upstream/2.39.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libfdisk/src/field.c')
-rw-r--r-- | libfdisk/src/field.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libfdisk/src/field.c b/libfdisk/src/field.c new file mode 100644 index 0000000..e924cf8 --- /dev/null +++ b/libfdisk/src/field.c @@ -0,0 +1,88 @@ + +#include "fdiskP.h" + +/** + * SECTION: field + * @title: Field + * @short_description: description of the partition fields + * + * The fdisk fields are static user-friendly descriptions of the partition. The + * fields are used to avoid label specific stuff in the functions that list disk + * partitions (e.g. fdisk -l). The field Id is the same as Id for fdisk_partition_to_string(). + * + * <informalexample> + * <programlisting> + * int *ids; + * size_t nids; + * struct fdisk_partition *pa = NULL; + * struct fdisk_label *lb = fdisk_get_label(cxt, NULL); + * + * fdisk_label_get_fields_ids(lb, cxt, &ids, &nids); + * + * fdisk_get_partition(cxt, 0, &pa); + * + * for (i = 0; i < nids; i++) { + * const struct fdisk_field *field = fdisk_label_get_field(lb, ids[i]); + * + * int id = fdisk_field_get_id(fl); + * const char *name = fdisk_field_get_name(fl); + * char *data; + * + * fdisk_partition_to_string(pa, id, &data); + * printf("%s: %s\n", name, data); + * free(data); + * } + * free(ids); + * </programlisting> + * </informalexample> + * + * This example lists all information about the first partition. It will work + * for MBR as well as for GPT because fields are not hardcoded in the example. + * + * See also fdisk_label_get_field_by_name(), fdisk_label_get_fields_ids_all() + * and fdisk_label_get_fields_ids(). + */ + +/** + * fdisk_field_get_id: + * @field: field instance + * + * Returns: field Id (FDISK_FIELD_*) + */ +int fdisk_field_get_id(const struct fdisk_field *field) +{ + return field ? field->id : -EINVAL; +} + +/** + * fdisk_field_get_name: + * @field: field instance + * + * Returns: field name + */ +const char *fdisk_field_get_name(const struct fdisk_field *field) +{ + return field ? field->name : NULL; +} + +/** + * fdisk_field_get_width: + * @field: field instance + * + * Returns: libsmartcols compatible width. + */ +double fdisk_field_get_width(const struct fdisk_field *field) +{ + return field ? field->width : -EINVAL; +} + +/** + * fdisk_field_is_number: + * @field: field instance + * + * Returns: 1 if field represent number + */ +int fdisk_field_is_number(const struct fdisk_field *field) +{ + return field->flags ? field->flags & FDISK_FIELDFL_NUMBER : 0; +} |