ls: allow backslashes to be replaced in displayed pathsfix_backslash

Normally 'ls' displays paths exactly as the user enters them:

   $ ls .//file
   .//file

In busybox-w32 paths using backslash as a separator are displayed in
a form that can't be reused as input to the shell:

   $ ls .\\file
   .\file

Allow backslashes to be replaced with forward slashes if the
environment variable BB_FIX_BACKSLASH is set to 1.

See GitHub issue #196.

1 files changed, 15 insertions, 0 deletions

diff --git a/coreutils/ls.c b/coreutils/ls.c
index fb082f1f3..ad754c14d 100644
--- a/coreutils/ls.c
+++ b/coreutils/ls.c
@@ -1074,6 +1074,18 @@ static void scan_and_display_dirs_recur(struct dnode **dn, int first)
         }
 }
 
+#if ENABLE_PLATFORM_MINGW32
+static char *fix_backslash(char *p)
+{
+        const char *flag = getenv("BB_FIX_BACKSLASH");
+        int value = flag ? atoi(flag) : 0;
+
+        if (value == 1)
+                bs_to_slash(p);
+        return p;
+}
+#endif
+
 
 int ls_main(int argc UNUSED_PARAM, char **argv)
 {       /*      ^^^^^^^^^^^^^^^^^ note: if FTPD, argc can be wrong, see ftpd.c */
@@ -1225,6 +1237,9 @@ int ls_main(int argc UNUSED_PARAM, char **argv)
         dn = NULL;
         nfiles = 0;
         do {
+#if ENABLE_PLATFORM_MINGW32
+                *argv = fix_backslash(*argv);
+#endif
                 cur = my_stat(*argv, *argv,
                         /* follow links on command line unless -l, -i, -s or -F: */
                         !(option_mask32 & (OPT_l|OPT_i|OPT_s|OPT_F))