avoid usage of non C99 function

[cparser] / lexer.c

diff --git a/lexer.c b/lexer.c
index 111bc6d..15c12a0 100644 (file)
--- a/lexer.c
+++ b/lexer.c
@@ -333,10 +333,20 @@ static named_decoder_t const decoders[] = {
        { NULL,              NULL                }
 };
 
+/** strcasecmp is not part of C99 so we need our own implementation here */
+static int my_strcasecmp(const char *s1, const char *s2)
+{
+       for ( ; *s1 != 0; ++s1, ++s2) {
+               if (tolower(*s1) != tolower(*s2))
+                       break;
+       }
+       return (unsigned char)*s1 - (unsigned char)*s2;
+}
+
 void select_input_encoding(char const* const encoding)
 {
        for (named_decoder_t const *i = decoders; i->name != NULL; ++i) {
-               if (strcasecmp(encoding, i->name) != 0)
+               if (my_strcasecmp(encoding, i->name) != 0)
                        continue;
                decoder = i->decoder;
                return;