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Diffstat (limited to '')
| -rw-r--r-- | handle.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/handle.c b/handle.c index f76a181..77f0806 100644 --- a/handle.c +++ b/handle.c @@ -118,6 +118,35 @@ static void handleCap(struct Message *msg) { } } +#define BASE64_SIZE(len) (1 + ((len) + 2) / 3 * 4) + +static void base64(char *dst, const byte *src, size_t len) { + static const char Base64[64] = { + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" + }; + size_t i = 0; + while (len > 2) { + dst[i++] = Base64[0x3F & (src[0] >> 2)]; + dst[i++] = Base64[0x3F & (src[0] << 4 | src[1] >> 4)]; + dst[i++] = Base64[0x3F & (src[1] << 2 | src[2] >> 6)]; + dst[i++] = Base64[0x3F & src[2]]; + src += 3; + len -= 3; + } + if (len) { + dst[i++] = Base64[0x3F & (src[0] >> 2)]; + if (len > 1) { + dst[i++] = Base64[0x3F & (src[0] << 4 | src[1] >> 4)]; + dst[i++] = Base64[0x3F & (src[1] << 2)]; + } else { + dst[i++] = Base64[0x3F & (src[0] << 4)]; + dst[i++] = '='; + } + dst[i++] = '='; + } + dst[i] = '\0'; +} + static void handleAuthenticate(struct Message *msg) { (void)msg; if (!self.plain) { |