* base64.h (isbase64): Add.

[gnulib.git] / lib / base64.c

diff --git a/lib/base64.c b/lib/base64.c
index 97b6019..98d933a 100644 (file)
--- a/lib/base64.c
+++ b/lib/base64.c
@@ -274,10 +274,10 @@ static const signed char b64[0x100] = {
   B64 (252), B64 (253), B64 (254), B64 (255)
 };
 
-static inline bool
-isb64 (unsigned char ch)
+bool
+isbase64 (char ch)
 {
-  return ch <= 255 && 0 <= b64[ch];
+  return to_uchar (ch) <= 255 && 0 <= b64[to_uchar (ch)];
 }
 
 /* Decode base64 encoded input array IN of length INLEN to output
@@ -295,7 +295,7 @@ base64_decode (const char *restrict in, size_t inlen,
 
   while (inlen >= 2)
     {
-      if (!isb64 (in[0]) || !isb64 (in[1]))
+      if (!isbase64 (in[0]) || !isbase64 (in[1]))
        break;
 
       if (outleft)
@@ -319,7 +319,7 @@ base64_decode (const char *restrict in, size_t inlen,
        }
       else
        {
-         if (!isb64 (in[2]))
+         if (!isbase64 (in[2]))
            break;
 
          if (outleft)
@@ -339,7 +339,7 @@ base64_decode (const char *restrict in, size_t inlen,
            }
          else
            {
-             if (!isb64 (in[3]))
+             if (!isbase64 (in[3]))
                break;
 
              if (outleft)