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22 results

qstrdefs.h

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  • Forked from card10 / firmware
    Source project has a limited visibility.
    modubinascii.c 8.26 KiB
    /*
     * This file is part of the Micro Python project, http://micropython.org/
     *
     * The MIT License (MIT)
     *
     * Copyright (c) 2014 Paul Sokolovsky
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy
     * of this software and associated documentation files (the "Software"), to deal
     * in the Software without restriction, including without limitation the rights
     * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     * copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in
     * all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     * THE SOFTWARE.
     */
    
    #include <stdio.h>
    #include <assert.h>
    #include <string.h>
    
    #include "py/nlr.h"
    #include "py/runtime.h"
    #include "py/binary.h"
    #include "extmod/modubinascii.h"
    
    #include "uzlib/tinf.h"
    
    mp_obj_t mod_binascii_hexlify(size_t n_args, const mp_obj_t *args) {
        // Second argument is for an extension to allow a separator to be used
        // between values.
        const char *sep = NULL;
        mp_buffer_info_t bufinfo;
        mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
    
        // Code below assumes non-zero buffer length when computing size with
        // separator, so handle the zero-length case here.
        if (bufinfo.len == 0) {
            return mp_const_empty_bytes;
        }
    
        vstr_t vstr;
        size_t out_len = bufinfo.len * 2;
        if (n_args > 1) {
            // 1-char separator between hex numbers
            out_len += bufinfo.len - 1;
            sep = mp_obj_str_get_str(args[1]);
        }
        vstr_init_len(&vstr, out_len);
        byte *in = bufinfo.buf, *out = (byte*)vstr.buf;
        for (mp_uint_t i = bufinfo.len; i--;) {
            byte d = (*in >> 4);
            if (d > 9) {
                d += 'a' - '9' - 1;
            }
            *out++ = d + '0';
            d = (*in++ & 0xf);
            if (d > 9) {
                d += 'a' - '9' - 1;
            }
            *out++ = d + '0';