/usr/include/varnish/miniobj.h is in libvarnishapi-dev 4.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Written by Poul-Henning Kamp <phk@phk.freebsd.dk>
*
* This file is in the public domain.
*
*/
#define INIT_OBJ(to, type_magic) \
do { \
(void)memset(to, 0, sizeof *to); \
(to)->magic = (type_magic); \
} while (0)
#define ALLOC_OBJ(to, type_magic) \
do { \
(to) = calloc(sizeof *(to), 1); \
if ((to) != NULL) \
(to)->magic = (type_magic); \
} while (0)
#define FREE_OBJ(to) \
do { \
(to)->magic = (0); \
free(to); \
to = NULL; \
} while (0)
#define VALID_OBJ(ptr, type_magic) \
((ptr) != NULL && (ptr)->magic == (type_magic))
#define CHECK_OBJ(ptr, type_magic) \
do { \
assert((ptr)->magic == type_magic); \
} while (0)
#define CHECK_OBJ_NOTNULL(ptr, type_magic) \
do { \
assert((ptr) != NULL); \
assert((ptr)->magic == type_magic); \
} while (0)
#define CHECK_OBJ_ORNULL(ptr, type_magic) \
do { \
if ((ptr) != NULL) \
assert((ptr)->magic == type_magic); \
} while (0)
#define CAST_OBJ(to, from, type_magic) \
do { \
(to) = (from); \
if ((to) != NULL) \
CHECK_OBJ((to), (type_magic)); \
} while (0)
#define CAST_OBJ_NOTNULL(to, from, type_magic) \
do { \
(to) = (from); \
assert((to) != NULL); \
CHECK_OBJ((to), (type_magic)); \
} while (0)
#define REPLACE(ptr, val) \
do { \
free(ptr); \
if ((val) != NULL) { \
ptr = strdup(val); \
AN((ptr)); \
} else { \
ptr = NULL; \
} \
} while (0)
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