+ void* (*malloc)(size_t);
+ void (*free)(void*);
+ void* (*realloc)(void*, size_t);
+ void (*_pthread_exit_if_canceled)(int);
+
+ /* The following functions are included in version 2 of this structure */
+ void *reserved1;
+ void *reserved2;
+ void *reserved3;
+ void *reserved4;
+ void *reserved5;
+
+ /* The following functions are included in version 3 of this structure */
+ void (*pthread_clear_qos_tsd)(mach_port_t);
+
+ /* Subsequent versions must only add pointers! */
+} *_libkernel_functions_t;
+
+typedef const struct _libkernel_string_functions {
+ /* The following functions are included in version 1 of this structure */
+ unsigned long version;
+ void (*bzero)(void *s, size_t n);
+ void * (*memchr)(const void *s, int c, size_t n);
+ int (*memcmp)(const void *s1, const void *s2, size_t n);
+ void * (*memmove)(void *dst, const void *src, size_t n);
+ void * (*memccpy)(void *__restrict dst, const void *__restrict src, int c, size_t n);
+ void * (*memset)(void *b, int c, size_t len);
+ char * (*strchr)(const char *s, int c);
+ int (*strcmp)(const char *s1, const char *s2);
+ char * (*strcpy)(char * restrict dst, const char * restrict src);
+ size_t (*strlcat)(char * restrict dst, const char * restrict src, size_t maxlen);
+ size_t (*strlcpy)(char * restrict dst, const char * restrict src, size_t maxlen);
+ size_t (*strlen)(const char *str);
+ int (*strncmp)(const char *s1, const char *s2, size_t n);
+ char * (*strncpy)(char * restrict dst, const char * restrict src, size_t maxlen);
+ size_t (*strnlen)(const char *s, size_t maxlen);
+ char * (*strstr)(const char *s, const char *find);
+ /* Subsequent versions must only add pointers! */
+} *_libkernel_string_functions_t;
+
+typedef const struct _libkernel_voucher_functions {
+ /* The following functions are included in version 1 of this structure */
+ unsigned long version;
+ boolean_t (*voucher_mach_msg_set)(mach_msg_header_t*);
+ void (*voucher_mach_msg_clear)(mach_msg_header_t*);
+ voucher_mach_msg_state_t (*voucher_mach_msg_adopt)(mach_msg_header_t*);
+ void (*voucher_mach_msg_revert)(voucher_mach_msg_state_t);
+
+ /* Subsequent versions must only add pointers! */
+} *_libkernel_voucher_functions_t;
+
+struct ProgramVars; /* forward reference */