allow newlines in base64Valid check

diff --git a/mech_eap/util_base64.c b/mech_eap/util_base64.c
index 134b2cc..aaa1ea8 100644 (file)
--- a/mech_eap/util_base64.c
+++ b/mech_eap/util_base64.c
@@ -144,15 +144,18 @@ base64Decode(const char *str, void *data)
 int
 base64Valid(const char *str)
 {
-    const char *p;
+    const char *p = str;
     int valid = 1;
 
-    for (p = str; *p && (*p == '=' || strchr(base64_chars, *p)); p += 4) {
+    while (*p && *p && (*p == '=' || strchr(base64_chars, *p))) {
        unsigned int val = token_decode(p);
        if (val == DECODE_ERROR) {
             valid = 0;
            break;
         }
+       p += 4;
+       if (*p == '\n')
+           p++;
     }
     return valid;
 }