From 79fc481a2b2151421752ffd6dba01c30a0dc5302 Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Tue, 7 Oct 2008 23:20:06 +0000
Subject: Split off Curl_isxdigit function

---
 lib/http_chunks.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/http_chunks.c b/lib/http_chunks.c
index 0d72793ce..e0887483a 100644
--- a/lib/http_chunks.c
+++ b/lib/http_chunks.c
@@ -81,6 +81,14 @@
 
  */
 
+/* Check for an ASCII hex digit.
+ We avoid the use of isxdigit to accommodate non-ASCII hosts. */
+static bool Curl_isxdigit(char digit)
+{
+  return (digit >= 0x30 && digit <= 0x39)    /* 0-9 */
+      || (digit >= 0x41 && digit <= 0x46)    /* A-F */
+      || (digit >= 0x61 && digit <= 0x66);   /* a-f */
+}
 
 void Curl_httpchunk_init(struct connectdata *conn)
 {
@@ -127,11 +135,7 @@ CHUNKcode Curl_httpchunk_read(struct connectdata *conn,
   while(length) {
     switch(ch->state) {
     case CHUNK_HEX:
-      /* Check for an ASCII hex digit.
-         We avoid the use of isxdigit to accommodate non-ASCII hosts. */
-      if((*datap >= 0x30 && *datap <= 0x39)    /* 0-9 */
-         || (*datap >= 0x41 && *datap <= 0x46)    /* A-F */
-         || (*datap >= 0x61 && *datap <= 0x66)) { /* a-f */
+      if(Curl_isxdigit(*datap)) {
         if(ch->hexindex < MAXNUM_SIZE) {
           ch->hexbuffer[ch->hexindex] = *datap;
           datap++;
-- 
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