1 files changed, 46 insertions, 0 deletions
diff --git a/stat.c b/stat.c
new file mode 100644
index 0000000..fcf064e
--- /dev/null
+++ b/stat.c
@@ -0,0 +1,46 @@
+#include <sys/stat.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <time.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#define TEST2(c, l, ...) ((c) ? 1 : \
+(err++,printf(__FILE__":"#l": "#c" failed: " __VA_ARGS__),putchar('\n'),0))
+#define TEST1(c, l, ...) TEST2(c, l, __VA_ARGS__)
+#define TEST(c, ...) TEST1(c, __LINE__, __VA_ARGS__)
+
+int test_stat(void)
+{
+	int err = 0;
+	struct stat st;
+	FILE *f;
+	time_t t;
+
+	if (TEST(stat(".",&st)==0, "errno = %s", strerror(errno))) {
+		TEST(S_ISDIR(st.st_mode), "");
+		TEST(st.st_nlink>0, "%ju", (uintmax_t)st.st_nlink);
+		t = time(0);
+		TEST(st.st_ctime<=t, "%jd > %jd", (intmax_t)st.st_ctime, (intmax_t)t);
+		TEST(st.st_mtime<=t, "%jd > %jd", (intmax_t)st.st_mtime, (intmax_t)t);
+		TEST(st.st_atime<=t, "%jd > %jd", (intmax_t)st.st_atime, (intmax_t)t);
+	}
+
+	if (TEST(stat("/dev/null",&st)==0, "errno = %s", strerror(errno))) {
+		TEST(S_ISCHR(st.st_mode), "");
+	}
+
+	if ((f = tmpfile())) {
+		fputs("hello", f);
+		fflush(f);
+		if (TEST(fstat(fileno(f),&st)==0, "errnp = %s", strerror(errno))) {
+			TEST(st.st_uid==geteuid(), "%d vs %d", (int)st.st_uid, (int)geteuid());
+			TEST(st.st_gid==getegid(), "%d vs %d", (int)st.st_uid, (int)geteuid());
+			TEST(st.st_size==5, "%jd vs 5", (intmax_t)st.st_size);
+		}
+		fclose(f);
+	}
+
+	return err;
+}