ctype: remove all use of <ctype.h>, use our own versions

Except in the test servers.

Closes #9433

1 files changed, 2 insertions, 4 deletions

diff --git a/lib/strcase.c b/lib/strcase.c
index f93248520..7f49e7868 100644
--- a/lib/strcase.c
+++ b/lib/strcase.c
@@ -28,8 +28,6 @@
 
 #include "strcase.h"
 
-static char raw_tolower(char in);
-
 /* Mapping table to go from lowercase to uppercase for plain ASCII.*/
 static const unsigned char touppermap[256] = {
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
@@ -79,7 +77,7 @@ char Curl_raw_toupper(char in)
 
 /* Portable, consistent tolower. Do not use tolower() because its behavior is
    altered by the current locale. */
-static char raw_tolower(char in)
+char Curl_raw_tolower(char in)
 {
   return tolowermap[(unsigned char) in];
 }
@@ -165,7 +163,7 @@ void Curl_strntolower(char *dest, const char *src, size_t n)
     return;
 
   do {
-    *dest++ = raw_tolower(*src);
+    *dest++ = Curl_raw_tolower(*src);
   } while(*src++ && --n);
 }