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/* See LICENSE file for copyright and license details. */
#include "libexec.h"

#include <sys/epoll.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>


#if defined(__linux__)
# define STRUCT_OPEN_HOW struct open_how
#else
# define STRUCT_OPEN_HOW void
int libexec_openat2(struct libexec_command *cmd, int fd, int dirfd, const char *file, void *how, size_t size);
#endif


#ifdef TEST
# define TESTED_ELSEWHERE LIBEXEC_CONST__ int main(void) { return 0; }

enum assert_type {
	ASSERT_ENUM,
	ASSERT_UINT,
	ASSERT_INT,
	ASSERT_NULL,
	ASSERT_PTR,
	ASSERT_STR,
	ASSERT_STR_REV
};

enum assert_how {
	ASSERT_EQ,
	ASSERT_NE,
	ASSERT_LT,
	ASSERT_LE,
	ASSERT_GT,
	ASSERT_GE,
	ASSERT_CONTAINS_ALL,
	ASSERT_CONTAINS_ANY,
	ASSERT_CONTAINS_NOT_ALL,
	ASSERT_CONTAINS_NOT_ANY,
	ASSERT_IS_IN,
	ASSERT_NOT_IN,
	ASSERT_NOT_LT,
	ASSERT_NOT_LE,
	ASSERT_NOT_GT,
	ASSERT_NOT_GE
};

void test_assert(const char *file, int line, enum assert_type type, enum assert_how how,
                 const char *have_string, const char *expect_string, const void *have, const void *expect);

#define ASSERT_EQ_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_EQ, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_NE_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_NE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_LT_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_LT, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_GT_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_GT, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_LE_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_LE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_GE_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_GE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_ALL_OF_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_CONTAINS_ALL, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_SOME_OF_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_CONTAINS_ANY, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_NONE_OF_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_CONTAINS_NOT_ANY, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_NOT_ALL_OF_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_CONTAINS_NOT_ALL, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_IS_IN_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_IS_IN, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_NOT_IN_ENUM(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_ENUM, ASSERT_NOT_IN, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_EQ_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_EQ, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_NE_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_NE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_LT_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_LT, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_GT_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_GT, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_LE_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_LE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_GE_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_GE, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_ALL_OF_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_CONTAINS_ALL, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_SOME_OF_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_CONTAINS_ANY, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_NONE_OF_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_CONTAINS_NOT_ANY, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_CONTAINS_NOT_ALL_OF_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_CONTAINS_NOT_ALL, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_IS_IN_UINT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_UINT, ASSERT_IS_IN, #HAVE, #EXPECT,\
	            &(uintmax_t){(uintmax_t)(HAVE)}, &(uintmax_t){(uintmax_t)(EXPECT)})

#define ASSERT_EQ_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_EQ, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_NE_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_NE, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_LT_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_LT, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_GT_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_GT, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_LE_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_LE, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_GE_INT(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_INT, ASSERT_GE, #HAVE, #EXPECT,\
	            &(intmax_t){(intmax_t)(HAVE)}, &(intmax_t){(intmax_t)(EXPECT)})

#define ASSERT_EQ_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_EQ, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_NE_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_STARTS_WITH_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_GE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_EXTENDS_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_GT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_TRUNCATES_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_LT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_BEGINNING_BOUNDED_TO_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_LE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_ENDS_WITH_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_GE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_EXTENDS_END_OF_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_GT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_TRUNCATES_END_OF_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_LT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_ENDING_BOUNDED_TO_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_LE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_STARTS_WITH_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NOT_GE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_EXTENDS_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NOT_GT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_TRUNCATES_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NOT_LT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_BEGINNING_NOT_BOUNDED_TO_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NOT_LE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_ENDS_WITH_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_NOT_GE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_EXTENDS_END_OF_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_NOT_GT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_TRUNCATES_END_OF_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_NOT_LT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_ENDING_NOT_BOUNDED_TO_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR_REV, ASSERT_NOT_LE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_CONTAINS_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_CONTAINS_ALL, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_DOES_NOT_CONTAIN_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_CONTAINS_NOT_ALL, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_IS_IN_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_IS_IN, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_NOT_IN_STR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_STR, ASSERT_NOT_IN, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_IS_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_EQ, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_NOT_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_NE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_BEFORE_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_LT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_AFTER_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_GT, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_BEFORE_OR_IS_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_LE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_AFTER_OR_IS_PTR(HAVE, EXPECT)\
	test_assert(__FILE__, __LINE__, ASSERT_PTR, ASSERT_GE, #HAVE, #EXPECT, (HAVE), (EXPECT))

#define ASSERT_IS_NULL(HAVE)\
	test_assert(__FILE__, __LINE__, ASSERT_NULL, ASSERT_EQ, #HAVE, "NULL", (HAVE), NULL)

#define ASSERT_NOT_NULL(HAVE)\
	test_assert(__FILE__, __LINE__, ASSERT_NULL, ASSERT_NE, #HAVE, "NULL", (HAVE), NULL)

#define ASSERT_IS_TRUE(HAVE)\
	ASSERT_NE_INT(HAVE, 0)

#define ASSERT_IS_FALSE(HAVE)\
	ASSERT_EQ_INT(HAVE, 0)

#define ASSERT_ZERO(HAVE)\
	ASSERT_EQ_INT(HAVE, 0)

#endif
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