list-disks.c

#include <gio/gunixmounts.h>
#include <glib.h>

/* Compile with:

      gcc list-disks.c $(pkg-config --libs --cflags gio-unix-2.0) -std=c11 -ggdb3 -W -Wall
*/

int main(void) {
    g_printerr("MOUNTS:\n");

    GList *mounts = g_unix_mounts_get(NULL);
    for(GList *iter = mounts; iter; iter = iter->next) {
        GUnixMountEntry *entry = iter->data;
        char *guessed_name = g_unix_mount_guess_name(entry);
        g_printerr(
            " %s%s dev=%s mount=%s fs_type=%s name=%s\n",
            g_unix_mount_is_system_internal(entry) ? " " : "*",
            g_unix_mount_guess_should_display(entry) ? "^" : " ",
            g_unix_mount_get_device_path(entry),
            g_unix_mount_get_mount_path(entry),
            g_unix_mount_get_fs_type(entry),
            guessed_name
        );

        g_free(guessed_name);
    }
    g_list_free_full(mounts, (GDestroyNotify)g_unix_mount_free);

    g_printerr("\nMOUNTPOINTS:\n");

    GList *points = g_unix_mount_points_get(NULL);
    for(GList *iter = points; iter; iter = iter->next) {
        GUnixMountPoint *point = iter->data;
        char *guessed_name = g_unix_mount_point_guess_name(point);
        g_printerr(
            "  dev=%s mount=%s fs_type=%s name=%s\n",
            g_unix_mount_point_get_device_path(point),
            g_unix_mount_point_get_mount_path(point),
            g_unix_mount_point_get_fs_type(point),
            guessed_name
        );
        g_free(guessed_name);
    }
    g_list_free_full(points, (GDestroyNotify)g_unix_mount_point_free);
    return 0;
}