[mod_auth] use SHA1_Init,Update,Final

wolfSSL does not provide the SHA1() convenience function,
so use stepwise funcs SHA1_Init(), SHA1_Update(), SHA1_Final()

src/algo_sha1.c

@@ -170,12 +170,4 @@ void SHA1_Final(sha1_byte digest[SHA1_DIGEST_LENGTH], SHA_CTX *context) {
     memset(&finalcount, 0, 8);
 }
 
-unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md) {
-    SHA_CTX ctx;
-    SHA1_Init(&ctx);
-    SHA1_Update(&ctx, d, (unsigned int)n);
-    SHA1_Final(md, &ctx);
-    return md;
-}
-
 #endif

src/algo_sha1.h

@@ -67,14 +67,10 @@ typedef struct _SHA_CTX {
 void SHA1_Init(SHA_CTX *context);
 void SHA1_Update(SHA_CTX *context, const sha1_byte *data, unsigned int len);
 void SHA1_Final(sha1_byte digest[SHA1_DIGEST_LENGTH], SHA_CTX *context);
-/*(added for lighttpd)*/
-unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
 #else
 void SHA1_Init();
 void SHA1_Update();
 void SHA1_Final();
-/*(added for lighttpd)*/
-unsigned char *SHA1();
 #endif
 
 #ifdef __cplusplus

src/mod_authn_file.c

@@ -595,8 +595,11 @@ static void apr_md5_encode(const char *pw, const char *salt, char *result, size_
 static void apr_sha_encode(const char *pw, char *result, size_t nbytes) {
     unsigned char digest[20];
     size_t base64_written;
+    SHA_CTX sha1;
 
-    SHA1((const unsigned char*) pw, strlen(pw), digest);
+    SHA1_Init(&sha1);
+    SHA1_Update(&sha1, (const unsigned char *) pw, strlen(pw));
+    SHA1_Final(digest, &sha1);
 
     memset(result, 0, nbytes);