1 files changed, 16 insertions, 0 deletions

diff --git a/coreutils/df.c b/coreutils/df.c
index 01c41db38..3b533b610 100644
--- a/coreutils/df.c
+++ b/coreutils/df.c
@@ -85,6 +85,9 @@
 //usage:        )
 //usage:     "\n        -B SIZE Blocksize"
 //usage:        )
+//usage:        IF_PLATFORM_MINGW32(
+//usage:     "\n        -w      Show Windows volumes"
+//usage:        )
 //usage:
 //usage:#define df_example_usage
 //usage:       "$ df\n"
@@ -139,6 +142,7 @@ int df_main(int argc UNUSED_PARAM, char **argv)
                 OPT_HUMAN    = (1 << (4 + 2*ENABLE_FEATURE_DF_FANCY + ENABLE_FEATURE_DF_FANCY_POSIX)) * ENABLE_FEATURE_HUMAN_READABLE,
                 OPT_HUMANDEC = (1 << (5 + 2*ENABLE_FEATURE_DF_FANCY + ENABLE_FEATURE_DF_FANCY_POSIX)) * ENABLE_FEATURE_HUMAN_READABLE,
                 OPT_MEGA     = (1 << (6 + 2*ENABLE_FEATURE_DF_FANCY + ENABLE_FEATURE_DF_FANCY_POSIX)) * ENABLE_FEATURE_HUMAN_READABLE,
+                OPT_WINVOL   = (1 << (7 + 2*ENABLE_FEATURE_DF_FANCY + ENABLE_FEATURE_DF_FANCY_POSIX)) * ENABLE_FEATURE_HUMAN_READABLE,
         };
         const char *disp_units_hdr = NULL;
         char *chp, *opt_t;
@@ -160,6 +164,9 @@ int df_main(int argc UNUSED_PARAM, char **argv)
                         IF_FEATURE_DF_FANCY("aB:")
 #endif
                         IF_FEATURE_HUMAN_READABLE("hHm")
+#if ENABLE_PLATFORM_MINGW32
+                        "w"
+#endif
                         "\0"
 #if ENABLE_FEATURE_HUMAN_READABLE && ENABLE_FEATURE_DF_FANCY
                         "k-mB:m-Bk:B-km"
@@ -248,7 +255,12 @@ int df_main(int argc UNUSED_PARAM, char **argv)
                         }
                 }
 
+#if ENABLE_PLATFORM_MINGW32
+                device = (opt & OPT_WINVOL) && mount_entry->mnt_volname[0] ?
+                                        mount_entry->mnt_volname : mount_entry->mnt_fsname;
+#else
                 device = mount_entry->mnt_fsname;
+#endif
 
                 /* GNU coreutils 6.10 skips certain mounts, try to be compatible */
                 if (ENABLE_FEATURE_SKIP_ROOTFS && strcmp(device, "rootfs") == 0)
@@ -266,6 +278,10 @@ int df_main(int argc UNUSED_PARAM, char **argv)
                         bb_simple_perror_msg(mount_point);
                         goto set_error;
                 }
+#if ENABLE_PLATFORM_MINGW32
+                // Trailing slash was needed for statvfs(), strip it for display
+                bs_to_slash_strip_slash(mount_entry->mnt_dir);
+#endif
                 /* Some uclibc versions were seen to lose f_frsize
                  * (kernel does return it, but then uclibc does not copy it)
                  */