/* Private definitions for libsepol. */
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/* Endian conversion for reading and writing binary policies */
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#include <sepol/policydb/policydb.h>
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#ifdef __APPLE__
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#include <sys/types.h>
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#include <machine/endian.h>
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#else
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#include <byteswap.h>
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#include <endian.h>
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#endif
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#include <errno.h>
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#include <dso.h>
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#ifdef __APPLE__
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#define __BYTE_ORDER BYTE_ORDER
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#define __LITTLE_ENDIAN LITTLE_ENDIAN
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#endif
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define cpu_to_le16(x) (x)
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#define le16_to_cpu(x) (x)
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#define cpu_to_le32(x) (x)
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#define le32_to_cpu(x) (x)
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#define cpu_to_le64(x) (x)
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#define le64_to_cpu(x) (x)
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#else
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#define cpu_to_le16(x) bswap_16(x)
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#define le16_to_cpu(x) bswap_16(x)
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#define cpu_to_le32(x) bswap_32(x)
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#define le32_to_cpu(x) bswap_32(x)
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#define cpu_to_le64(x) bswap_64(x)
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#define le64_to_cpu(x) bswap_64(x)
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#endif
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#undef min
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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#undef max
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#define max(a,b) ((a) >= (b) ? (a) : (b))
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
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#define is_saturated(x) (x == (typeof(x))-1)
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#define zero_or_saturated(x) ((x == 0) || is_saturated(x))
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/* Policy compatibility information. */
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struct policydb_compat_info {
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unsigned int type;
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unsigned int version;
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unsigned int sym_num;
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unsigned int ocon_num;
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unsigned int target_platform;
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};
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extern struct policydb_compat_info *policydb_lookup_compat(unsigned int version,
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unsigned int type,
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unsigned int target_platform);
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/* Reading from a policy "file". */
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extern int next_entry(void *buf, struct policy_file *fp, size_t bytes) hidden;
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extern size_t put_entry(const void *ptr, size_t size, size_t n,
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struct policy_file *fp) hidden;
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extern int str_read(char **strp, struct policy_file *fp, size_t len) hidden;
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