#include <ctype.h>
#include "nls.h"
#include "fdiskP.h"
/**
* fdisk_label_get_nparttypes:
* @lb: label
*
* Returns: number of types supported by label.
*/
size_t fdisk_label_get_nparttypes(struct fdisk_label *lb)
{
if (!lb)
return 0;
return lb->nparttypes;
}
/**
* fdisk_label_get_parttype:
* @lb: label
* @n: number
*
* Returns: return parttype
*/
const struct fdisk_parttype *fdisk_label_get_parttype(struct fdisk_label *lb, size_t n)
{
if (!lb || n >= lb->nparttypes)
return NULL;
return &lb->parttypes[n];
}
/**
* fdisk_label_has_code_parttypes:
* @lb: label
*
* Returns: 1 if the label uses code as partition type
* identifiers (e.g. MBR) or 0.
*/
int fdisk_label_has_code_parttypes(struct fdisk_label *lb)
{
assert(lb);
if (lb->parttypes && lb->parttypes[0].typestr)
return 0;
return 1;
}
/**
* fdisk_label_get_parttype_from_code:
* @lb: label
* @code: code to search for
*
* Search in lable-specific table of supported partition types by code.
*
* Returns: partition type or NULL upon failure or invalid @code.
*/
struct fdisk_parttype *fdisk_label_get_parttype_from_code(
struct fdisk_label *lb,
unsigned int code)
{
size_t i;
assert(lb);
if (!lb->nparttypes)
return NULL;
for (i = 0; i < lb->nparttypes; i++)
if (lb->parttypes[i].code == code)
return &lb->parttypes[i];
return NULL;
}
/**
* fdisk_label_get_parttype_from_string:
* @lb: label
* @str: string to search for
*
* Search in lable-specific table of supported partition types by typestr.
*
* Returns: partition type or NULL upon failure or invalid @str.
*/
struct fdisk_parttype *fdisk_label_get_parttype_from_string(
struct fdisk_label *lb,
const char *str)
{
size_t i;
assert(lb);
if (!lb->nparttypes)
return NULL;
for (i = 0; i < lb->nparttypes; i++)
if (lb->parttypes[i].typestr
&& strcasecmp(lb->parttypes[i].typestr, str) == 0)
return &lb->parttypes[i];
return NULL;
}
/**
* fdisk_new_unknown_parttype:
* @code: type as number
* @typestr: type as string
* Allocates new 'unknown' partition type. Use fdisk_free_parttype() to
* deallocate.
*
* Returns: newly allocated partition type, or NULL upon failure.
*/
struct fdisk_parttype *fdisk_new_unknown_parttype(unsigned int code,
const char *typestr)
{
struct fdisk_parttype *t;
t = calloc(1, sizeof(*t));
if (!t)
return NULL;
if (typestr) {
t->typestr = strdup(typestr);
if (!t->typestr) {
free(t);
return NULL;
}
}
t->name = _("unknown");
t->code = code;
t->flags |= FDISK_PARTTYPE_UNKNOWN | FDISK_PARTTYPE_ALLOCATED;
DBG(PARTTYPE, ul_debugobj(t, "allocated new unknown type"));
return t;
}
/**
* fdisk_label_parse_parttype:
* @lb: label
* @str: string to parse from
*
* Returns: pointer to static table of the partition types, or newly allocated
* partition type for unknown types. It's safe to call fdisk_free_parttype()
* for all results.
*/
struct fdisk_parttype *fdisk_label_parse_parttype(
struct fdisk_label *lb,
const char *str)
{
struct fdisk_parttype *types, *ret;
unsigned int code = 0;
char *typestr = NULL, *end = NULL;
assert(lb);
if (!lb->nparttypes)
return NULL;
DBG(LABEL, ul_debugobj(lb, "parsing '%s' (%s) partition type",
str, lb->name));
types = lb->parttypes;
if (types[0].typestr == NULL && isxdigit(*str)) {
errno = 0;
code = strtol(str, &end, 16);
if (errno || *end != '\0') {
DBG(LABEL, ul_debugobj(lb, "parsing failed: %m"));
return NULL;
}
ret = fdisk_label_get_parttype_from_code(lb, code);
if (ret)
goto done;
} else {
int i;
/* maybe specified by type string (e.g. UUID) */
ret = fdisk_label_get_parttype_from_string(lb, str);
if (ret)
goto done;
/* maybe specified by order number */
errno = 0;
i = strtol(str, &end, 0);
if (errno == 0 && *end == '\0' && i > 0
&& i - 1 < (int) lb->nparttypes) {
ret = &types[i - 1];
goto done;
}
}
ret = fdisk_new_unknown_parttype(code, typestr);
done:
DBG(PARTTYPE, ul_debugobj(ret, "returns parsed '%s' partition type", ret->name));
return ret;
}
/**
* fdisk_free_parttype:
* @t: new type
*
* Free the @type.
*/
void fdisk_free_parttype(struct fdisk_parttype *t)
{
if (t && (t->flags & FDISK_PARTTYPE_ALLOCATED)) {
DBG(PARTTYPE, ul_debugobj(t, "free"));
free(t->typestr);
free(t);
}
}
const char *fdisk_parttype_get_string(const struct fdisk_parttype *t)
{
assert(t);
return t->typestr && *t->typestr ? t->typestr : NULL;
}
unsigned int fdisk_parttype_get_code(const struct fdisk_parttype *t)
{
assert(t);
return t->code;
}
const char *fdisk_parttype_get_name(const struct fdisk_parttype *t)
{
assert(t);
return t->name;
}
/**
* fdisk_parttype_is_unknown:
* @t: type
*
* Checks for example result from fdisk_label_parse_parttype().
*
* Returns: 1 is type is "unknonw" or 0.
*/
int fdisk_parttype_is_unknown(const struct fdisk_parttype *t)
{
return t && (t->flags & FDISK_PARTTYPE_UNKNOWN) ? 1 : 0;
}