20 #include <assert.h>
38  * Return -1 if a process is userspace process.
49 	if (dir_fd == -1)  in kernel_thread_fd()
50 		return -1;  in kernel_thread_fd()
57 	if (fd == -1) {  in kernel_thread_fd()
59 		return -1;  in kernel_thread_fd()
68 		assert(buf[rv - 1] == '\n');  in kernel_thread_fd()
69 		buf[rv - 1] = '\0';  in kernel_thread_fd()
71 		/* Search backwards: ->comm can contain whitespace and ')'. */  in kernel_thread_fd()
74 			assert(p);  in kernel_thread_fd()
79 		assert(p);  in kernel_thread_fd()
82 		assert(*end == '\0');  in kernel_thread_fd()
83 		assert(flags_ull == (unsigned int)flags_ull);  in kernel_thread_fd()
88 	fd = -1;  in kernel_thread_fd()
99 	struct dirent *de;  in test_readdir()  local
102 	assert(d);  in test_readdir()
104 	de = xreaddir(d);  in test_readdir()
105 	assert(streq(de->d_name, "."));  in test_readdir()
106 	assert(de->d_type == DT_DIR);  in test_readdir()
108 	de = xreaddir(d);  in test_readdir()
109 	assert(streq(de->d_name, ".."));  in test_readdir()
110 	assert(de->d_type == DT_DIR);  in test_readdir()
112 	de = xreaddir(d);  in test_readdir()
113 	assert(!de);  in test_readdir()
128 	assert(rv == -1 && errno == ENOENT);  in test_lookup_fail()
141 	for (i = -1024; i < 1024; i++) {  in test_lookup()
145 	for (u = INT_MAX - 1024; u < (unsigned int)INT_MAX + 1024; u++) {  in test_lookup()
149 	for (u = UINT_MAX - 1024; u != 0; u++) {  in test_lookup()
167 	while ((fd = kernel_thread_fd(pid)) == -1 && pid < 1024) {  in main()
170 	/* EACCES if run as non-root. */  in main()