#include "vector.h"
#include "hex.h"
#include "log.h"
+#include "base64.h"
/** @brief Match whitespace characters */
static int whitespace(int c) {
return d.vec;
}
-static const char mime_base64_table[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-/** @brief Convert MIME base64
- * @param s base64 data
- * @return Decoded data
- */
-char *mime_base64(const char *s, size_t *nsp) {
- struct dynstr d;
- const char *t;
- int b[4], n, c;
-
- dynstr_init(&d);
- n = 0;
- while((c = (unsigned char)*s++)) {
- if((t = strchr(mime_base64_table, c))) {
- b[n++] = t - mime_base64_table;
- if(n == 4) {
- dynstr_append(&d, (b[0] << 2) + (b[1] >> 4));
- dynstr_append(&d, (b[1] << 4) + (b[2] >> 2));
- dynstr_append(&d, (b[2] << 6) + b[3]);
- n = 0;
- }
- } else if(c == '=') {
- if(n >= 2) {
- dynstr_append(&d, (b[0] << 2) + (b[1] >> 4));
- if(n == 3)
- dynstr_append(&d, (b[1] << 4) + (b[2] >> 2));
- }
- break;
- }
- }
- if(nsp)
- *nsp = d.nvec;
- dynstr_terminate(&d);
- return d.vec;
-}
-
-/** @brief Convert a binary string to base64
- * @param s Bytes to convert
- * @param ns Number of bytes to convert
- * @return Encoded data
- *
- * This function does not attempt to split up lines.
- */
-char *mime_to_base64(const uint8_t *s, size_t ns) {
- struct dynstr d[1];
-
- dynstr_init(d);
- while(ns >= 3) {
- /* Input bytes with output bits: AAAAAABB BBBBCCCC CCDDDDDD */
- /* Output bytes with input bits: 000000 001111 111122 222222 */
- dynstr_append(d, mime_base64_table[s[0] >> 2]);
- dynstr_append(d, mime_base64_table[((s[0] & 3) << 4)
- + (s[1] >> 4)]);
- dynstr_append(d, mime_base64_table[((s[1] & 15) << 2)
- + (s[2] >> 6)]);
- dynstr_append(d, mime_base64_table[s[2] & 63]);
- ns -= 3;
- s += 3;
- }
- if(ns > 0) {
- dynstr_append(d, mime_base64_table[s[0] >> 2]);
- switch(ns) {
- case 1:
- dynstr_append(d, mime_base64_table[(s[0] & 3) << 4]);
- dynstr_append(d, '=');
- dynstr_append(d, '=');
- break;
- case 2:
- dynstr_append(d, mime_base64_table[((s[0] & 3) << 4)
- + (s[1] >> 4)]);
- dynstr_append(d, mime_base64_table[(s[1] & 15) << 2]);
- dynstr_append(d, '=');
- break;
- }
- }
- dynstr_terminate(d);
- return d->vec;
-}
-
/** @brief Parse a RFC2109 Cookie: header
* @param s Header field value
* @param cd Where to store result