1 files changed, 0 insertions, 103 deletions
diff --git a/lib/util/base64_decode.c b/lib/util/base64_decode.c
deleted file mode 100644
index b1cf5b6..0000000
--- a/lib/util/base64_decode.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * base64_decode.c
- *
- * Copyright (C) 2022 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-#include "util/util.h"
-#include "util/test.h"
-
-#include <ctype.h>
-
-static int base64_digit(int c)
-{
-	if (isupper(c))
-		return c - 'A';
-	if (islower(c))
-		return c - 'a' + 26;
-	if (isdigit(c))
-		return c - '0' + 52;
-	if (c == '+')
-		return 62;
-	if (c == '/' || c == '-')
-		return 63;
-	return -1;
-}
-
-int base64_decode(const char *in, size_t in_len, sqfs_u8 *out, size_t *out_len)
-{
-	int i1, i2, i3, i4;
-	size_t count = 0;
-
-	while (in_len >= 4) {
-		i1 = base64_digit(*(in++));
-		i2 = base64_digit(*(in++));
-		i3 = *(in++);
-		i4 = *(in++);
-		in_len -= 4;
-
-		if (i1 < 0 || i2 < 0 || count >= *out_len)
-			goto fail;
-
-		out[count++] = (i1 << 2) | (i2 >> 4);
-
-		if (i3 == '=' || i3 == '_') {
-			if ((i4 != '=' && i4 != '_') || in_len > 0)
-				goto fail;
-			break;
-		}
-
-		i3 = base64_digit(i3);
-		if (i3 < 0 || count >= *out_len)
-			goto fail;
-
-		out[count++] = ((i2 & 0x0F) << 4) | (i3 >> 2);
-
-		if (i4 == '=' || i4 == '_') {
-			if (in_len > 0)
-				goto fail;
-			break;
-		}
-
-		i4 = base64_digit(i4);
-		if (i4 < 0 || count >= *out_len)
-			goto fail;
-
-		out[count++] = ((i3 & 0x3) << 6) | i4;
-	}
-
-	/* libarchive has this bizarre bastardization of truncated base64 */
-	if (in_len > 0) {
-		if (in_len == 1)
-			goto fail;
-
-		i1 = base64_digit(*(in++));
-		i2 = base64_digit(*(in++));
-		in_len -= 2;
-
-		if (i1 < 0 || i2 < 0 || count >= *out_len)
-			goto fail;
-
-		out[count++] = (i1 << 2) | (i2 >> 4);
-
-		if (in_len > 0) {
-			i3 = *(in++);
-			--in_len;
-
-			if (i3 != '=' && i3 != '_') {
-				i3 = base64_digit(i3);
-				if (i3 < 0 || count >= *out_len)
-					goto fail;
-
-				out[count++] = ((i2 & 0x0F) << 4) | (i3 >> 2);
-			}
-		}
-	}
-
-	*out_len = count;
-	return 0;
-fail:
-	*out_len = 0;
-	return -1;
-}