(md5_check): Declare local, `md5num' as _unsigned_ char*.

(hex_digits): Declare parameter `s' as _unsigned_ char*.
(split_3): Declare parameter `u' as _unsigned_ char**.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/md5sum.c b/src/md5sum.c
index 1700563fd..5c8410e32 100644
--- a/src/md5sum.c
+++ b/src/md5sum.c
@@ -129,7 +129,7 @@ text), and name for each FILE.\n"),
 }
 
 static int
-split_3 (char *s, size_t s_len, char **u, int *binary, char **w)
+split_3 (char *s, size_t s_len, unsigned char **u, int *binary, char **w)
 {
   size_t i;
   int filename_has_newline = 0;
@@ -219,7 +219,7 @@ split_3 (char *s, size_t s_len, char **u, int *binary, char **w)
 }
 
 static int
-hex_digits (const char *s)
+hex_digits (unsigned char const *s)
 {
   while (*s)
     {
@@ -312,7 +312,7 @@ md5_check (const char *checkfile_name)
     {
       char *filename;
       int binary;
-      char *md5num;
+      unsigned char *md5num;
       int err;
       int line_length;