Merge branch 'test-statvfs' into 'master'

Add basic test for statvfs

See merge request redox-os/relibc!683

tests/Makefile

@@ -239,6 +239,7 @@ NAMES=\
 	stdlib/realpath \
 	sys_epoll/epoll \
 	sys_resource/constants \
+	sys_statvfs/statvfs \
 	sys_utsname/uname \
 	time/gettimeofday \
 	unistd/chdir \

tests/sys_statvfs/statvfs.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/statvfs.h>
+
+int test_statvfs(const char *path) {
+    struct statvfs buf;
+
+    printf("Testing statvfs on: %s\n", path);
+
+    if (statvfs(path, &buf) != 0) {
+        perror("statvfs failed");
+        return EXIT_FAILURE;
+    }
+
+    printf("  Filesystem block size: %lu\n", buf.f_bsize);
+    printf("  Fragment size:         %lu\n", buf.f_frsize);
+    printf("  Total blocks:          %lu\n", buf.f_blocks);
+    printf("  Free blocks:           %lu\n", buf.f_bfree);
+    printf("  Available blocks:      %lu\n", buf.f_bavail);
+    printf("  Total inodes:          %lu\n", buf.f_files);
+    printf("  Free inodes:           %lu\n", buf.f_ffree);
+
+    if (buf.f_bsize == 0 || buf.f_frsize == 0) {
+        fprintf(stderr, "ERROR: Block size or fragment size is zero.\n");
+        return EXIT_FAILURE;
+    }
+
+    if (buf.f_blocks == 0) {
+        fprintf(stderr, "ERROR: Total number of blocks is zero.\n");
+        return EXIT_FAILURE;
+    }
+
+    return 0;
+}
+
+int main(void) {
+    const char *test_path = "/";
+
+    return test_statvfs(test_path);
+}