aboutsummaryrefslogtreecommitdiff
path: root/src/base64.c
diff options
context:
space:
mode:
authorhiro <hiro@ee746299-78ed-0310-b773-934348b2243d>2005-08-31 06:10:31 +0000
committerhiro <hiro@ee746299-78ed-0310-b773-934348b2243d>2005-08-31 06:10:31 +0000
commitf36577b27b6f352f140cf1f25755d39661bd4072 (patch)
tree664d196337dc86ddafc6218c8c9f19055e22e155 /src/base64.c
parent6ae811ae5e6a0463dadc9ebb6f833dc5154700bd (diff)
made some core modules library (libsylph).
git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@528 ee746299-78ed-0310-b773-934348b2243d
Diffstat (limited to 'src/base64.c')
-rw-r--r--src/base64.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/src/base64.c b/src/base64.c
deleted file mode 100644
index 484cd286..00000000
--- a/src/base64.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2002 Hiroyuki Yamamoto
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <glib.h>
-#include <ctype.h>
-#include <string.h>
-
-#include "base64.h"
-
-static const gchar base64char[64] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static const gchar base64val[128] = {
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
- 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
- -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
- -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
- 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
-};
-
-#define BASE64VAL(c) (isascii((guchar)c) ? base64val[(gint)(c)] : -1)
-
-void base64_encode(gchar *out, const guchar *in, gint inlen)
-{
- const guchar *inp = in;
- gchar *outp = out;
-
- while (inlen >= 3) {
- *outp++ = base64char[(inp[0] >> 2) & 0x3f];
- *outp++ = base64char[((inp[0] & 0x03) << 4) |
- ((inp[1] >> 4) & 0x0f)];
- *outp++ = base64char[((inp[1] & 0x0f) << 2) |
- ((inp[2] >> 6) & 0x03)];
- *outp++ = base64char[inp[2] & 0x3f];
-
- inp += 3;
- inlen -= 3;
- }
-
- if (inlen > 0) {
- *outp++ = base64char[(inp[0] >> 2) & 0x3f];
- if (inlen == 1) {
- *outp++ = base64char[(inp[0] & 0x03) << 4];
- *outp++ = '=';
- } else {
- *outp++ = base64char[((inp[0] & 0x03) << 4) |
- ((inp[1] >> 4) & 0x0f)];
- *outp++ = base64char[((inp[1] & 0x0f) << 2)];
- }
- *outp++ = '=';
- }
-
- *outp = '\0';
-}
-
-gint base64_decode(guchar *out, const gchar *in, gint inlen)
-{
- const gchar *inp = in;
- guchar *outp = out;
- gchar buf[4];
-
- if (inlen < 0)
- inlen = G_MAXINT;
-
- while (inlen >= 4 && *inp != '\0') {
- buf[0] = *inp++;
- inlen--;
- if (BASE64VAL(buf[0]) == -1) break;
-
- buf[1] = *inp++;
- inlen--;
- if (BASE64VAL(buf[1]) == -1) break;
-
- buf[2] = *inp++;
- inlen--;
- if (buf[2] != '=' && BASE64VAL(buf[2]) == -1) break;
-
- buf[3] = *inp++;
- inlen--;
- if (buf[3] != '=' && BASE64VAL(buf[3]) == -1) break;
-
- *outp++ = ((BASE64VAL(buf[0]) << 2) & 0xfc) |
- ((BASE64VAL(buf[1]) >> 4) & 0x03);
- if (buf[2] != '=') {
- *outp++ = ((BASE64VAL(buf[1]) & 0x0f) << 4) |
- ((BASE64VAL(buf[2]) >> 2) & 0x0f);
- if (buf[3] != '=') {
- *outp++ = ((BASE64VAL(buf[2]) & 0x03) << 6) |
- (BASE64VAL(buf[3]) & 0x3f);
- }
- }
- }
-
- return outp - out;
-}
-
-Base64Decoder *base64_decoder_new(void)
-{
- Base64Decoder *decoder;
-
- decoder = g_new0(Base64Decoder, 1);
- return decoder;
-}
-
-void base64_decoder_free(Base64Decoder *decoder)
-{
- g_free(decoder);
-}
-
-gint base64_decoder_decode(Base64Decoder *decoder,
- const gchar *in, guchar *out)
-{
- gint len, total_len = 0;
- gint buf_len;
- gchar buf[4];
-
- g_return_val_if_fail(decoder != NULL, -1);
- g_return_val_if_fail(in != NULL, -1);
- g_return_val_if_fail(out != NULL, -1);
-
- buf_len = decoder->buf_len;
- memcpy(buf, decoder->buf, sizeof(buf));
-
- for (;;) {
- while (buf_len < 4) {
- gchar c = *in;
-
- in++;
- if (c == '\0') break;
- if (c == '\r' || c == '\n') continue;
- if (c != '=' && BASE64VAL(c) == -1)
- return -1;
- buf[buf_len++] = c;
- }
- if (buf_len < 4 || buf[0] == '=' || buf[1] == '=') {
- decoder->buf_len = buf_len;
- memcpy(decoder->buf, buf, sizeof(buf));
- return total_len;
- }
- len = base64_decode(out, buf, 4);
- out += len;
- total_len += len;
- buf_len = 0;
- if (len < 3) {
- decoder->buf_len = 0;
- return total_len;
- }
- }
-}