diff options
Diffstat (limited to 'support/dktools/dk4binenc.c')
-rw-r--r-- | support/dktools/dk4binenc.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/support/dktools/dk4binenc.c b/support/dktools/dk4binenc.c new file mode 100644 index 0000000000..597dad1eb0 --- /dev/null +++ b/support/dktools/dk4binenc.c @@ -0,0 +1,258 @@ +/* + WARNING: This file was generated by dkct. + Changes you make here will be lost if dkct is run again! + You should modify the original source and run dkct on it. + Original source: dk4binenc.ctr +*/ + +/* +Copyright (C) 2015-2017, Dirk Krause + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above opyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. +* Neither the name of the author nor the names of contributors may be used + to endorse or promote products derived from this software without specific + prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. +IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** @file dk4binenc.c The dk4binenc module. +*/ + + +#line 94 "dk4binenc.ctr" + +#include "dk4binenc.h" +#include "dk4mem.h" +#include "dk4memrs.h" +#include "dk4a85e.h" +#include "dk4maasz.h" +#include "dk4strd.h" +#include "dk4edstm.h" + + + + + +#line 106 "dk4binenc.ctr" + + + +/** Hexadecimal digits. +*/ +static const char dk4binenc_hex_digits[] = { "0123456789abcdef" }; + + + +/** Message digest type names. + Order must match the definition order in the enum in dk4md.h. +*/ +static const dkChar * const dk4binenc_encoding_names[] = { +/* 0 */ +dkT("bin"), + +/* 1 */ +dkT("binary"), + +/* 2 */ +dkT("hex"), + +/* 3 */ +dkT("hexa"), + +/* 4 */ +dkT("hexadecimal"), + +/* 5 */ +dkT("ascii-85"), + +/* 6 */ +dkT("ascii85"), + +/* 7 */ +dkT("a85"), + +NULL + + +#line 129 "dk4binenc.ctr" +}; + + + +int +dk4binenc( + char *dptr, + size_t szdptr, + const void *sptr, + size_t szsptr, + int enc, + dk4_er_t *erp +) +{ + dk4_a85_enc_t a85; + dk4_er_t maerr; + const unsigned char *ucptr; + const char *resptr; + size_t ressize; + size_t oused; + size_t noused; + int back = 0; + if ((NULL != dptr) && (NULL != sptr) && (0 < szdptr) && (0 < szsptr)) { + switch (enc) { + case DK4_BINARY_TO_TEXT_ENCODING_NONE : { + if (szdptr >= szsptr) { + DK4_MEMCPY(dptr, sptr, szsptr); + back = 1; + } else { + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + } + } break; + case DK4_BINARY_TO_TEXT_ENCODING_HEX : { + oused = 0; + ucptr = (const unsigned char *)sptr; + while (szsptr--) { + dk4error_init(&maerr); + noused = dk4ma_size_t_add(oused, 2, &maerr); + if (DK4_E_NONE == maerr.ec) { + dptr[oused] = + dk4binenc_hex_digits[(size_t)((((unsigned)(*ucptr)) >> 4) & 0x0FU)]; + dptr[oused+1] = + dk4binenc_hex_digits[(size_t)(((unsigned)(*ucptr)) & 0x0FU)]; + oused = noused; + } else { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + goto finished; + } + ucptr++; + } + if (oused < szdptr) { + dptr[oused] = '\0'; + back = 1; + } else { + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + } + } break; + case DK4_BINARY_TO_TEXT_ENCODING_A85 : { + oused = 0; + ucptr = (const unsigned char *)sptr; + dk4a85_enc_init(&a85, 0, erp); + while(szsptr--) { + switch (dk4a85_enc_add(&a85, *(ucptr++), erp)) { + case DK4_EDSTM_FINISHED : { + resptr = NULL; ressize = 0; + (void)dk4a85_enc_output(&resptr, &ressize, &a85, NULL); + if ((NULL != resptr) && (0 < ressize)) { + dk4error_init(&maerr); + noused = dk4ma_size_t_add(oused, ressize, &maerr); + if (DK4_E_NONE == maerr.ec) { + if (noused < szdptr) { + DK4_MEMCPY(&(dptr[oused]), resptr, ressize); + oused = noused; + } else { + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + goto finished; + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + goto finished; + } + } + } break; + case DK4_EDSTM_ERROR : { + dk4error_set_simple_error_code(erp, DK4_E_ENCODING_FAILED); + goto finished; + } break; + } + } + switch (dk4a85_enc_finish(&a85, erp)) { + case DK4_EDSTM_FINISHED : { + resptr = NULL; ressize = 0; + (void)dk4a85_enc_output(&resptr, &ressize, &a85, NULL); + if ((NULL != resptr) && (0 < ressize)) { + dk4error_init(&maerr); + noused = dk4ma_size_t_add(oused, ressize, &maerr); + if (DK4_E_NONE == maerr.ec) { + if (noused < szdptr) { + DK4_MEMCPY(&(dptr[oused]), resptr, ressize); + oused = noused; + } else { + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + goto finished; + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + goto finished; + } + } + } break; + case DK4_EDSTM_ERROR : { + dk4error_set_simple_error_code(erp, DK4_E_ENCODING_FAILED); + goto finished; + } break; + } + if (oused < szdptr) { + dptr[oused] = '\0'; + back = 1; + } else { + dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL); + } + (void)dk4mem_reset_secure(&a85, sizeof(dk4_a85_enc_t), NULL); + } break; + default : { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + } break; + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + } + finished: + if ((NULL != dptr) && (0 == back)) { *dptr = '\0'; } + return back; +} + + + +int +dk4binenc_choose_encoding(const dkChar *name, dk4_er_t *erp) +{ + + int back = -1; + if (NULL != name) { + switch (dk4str_array_index(dk4binenc_encoding_names, name, 0)) { + case 0: case 1: { + back = DK4_BINARY_TO_TEXT_ENCODING_NONE; + } break; + case 2: case 3: case 4: { + back = DK4_BINARY_TO_TEXT_ENCODING_HEX; + } break; + case 5: case 6: case 7: { + back = DK4_BINARY_TO_TEXT_ENCODING_A85; + } break; + } + if (-1 == back) { + dk4error_set_simple_error_code(erp, DK4_E_SYNTAX); + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + } + return back; +} + |