user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/tests/bsd/strl.c

@@ -0,0 +1,56 @@
+#include <assert.h>
+#include <string.h>
+
+int main() {
+	char buf[256];
+
+	/* Test copy to 0-sized buffer . */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcpy(buf, "xyz", 0) == 3);
+	assert(strcmp(buf, "") == 0);
+
+	/* Test normal copy. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcpy(buf, "xyz", sizeof(buf)) == 3);
+	assert(strcmp(buf, "xyz") == 0);
+
+	/* Test truncated copy. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcpy(buf, "abcdefabcdef", 10) == 12);
+	assert(strcmp(buf, "abcdefabc") == 0);
+
+	/* Test concat to 0-sized buffer. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcat(buf, "abc", 0) == 3);
+	assert(strcmp(buf, "") == 0);
+
+	/* Test concat to full buffer. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcat(buf, "abcde", 6) == 5);
+	assert(strcmp(buf, "abcde") == 0);
+	assert(strlcat(buf, "xyz", 5) == 8);
+	assert(strcmp(buf, "abcde") == 0);
+
+	/* Test normal concat. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcat(buf, "abc", sizeof(buf)) == 3);
+	assert(strcmp(buf, "abc") == 0);
+	assert(strlcat(buf, "xyz", sizeof(buf)) == 6);
+	assert(strcmp(buf, "abcxyz") == 0);
+
+	/* Test truncated concat. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcat(buf, "abcabc", 10) == 6);
+	assert(strcmp(buf, "abcabc") == 0);
+	assert(strlcat(buf, "xyzxyz", 10) == 12);
+	assert(strcmp(buf, "abcabcxyz") == 0);
+
+	/* Test truncated concat w/ truncated dst. */
+	memset(buf, 0, sizeof(buf));
+	assert(strlcat(buf, "abcabc", 10) == 6);
+	assert(strcmp(buf, "abcabc") == 0);
+	assert(strlcat(buf, "xyz", 4) == 7);
+	assert(strcmp(buf, "abcabc") == 0);
+
+	return 0;
+}