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annotate nss/lib/util/nssb64.h @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5 /*
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6 * Public prototypes for base64 encoding/decoding.
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7 */
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8 #ifndef _NSSB64_H_
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9 #define _NSSB64_H_
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10
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11 #include "utilrename.h"
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12 #include "seccomon.h"
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13 #include "nssb64t.h"
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14
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15 SEC_BEGIN_PROTOS
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16
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17 /*
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18 * Functions to start a base64 decoding/encoding context.
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19 */
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20
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21 extern NSSBase64Decoder *
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22 NSSBase64Decoder_Create (PRInt32 (*output_fn) (void *, const unsigned char *,
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23 PRInt32),
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24 void *output_arg);
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25
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26 extern NSSBase64Encoder *
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27 NSSBase64Encoder_Create (PRInt32 (*output_fn) (void *, const char *, PRInt32),
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28 void *output_arg);
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29
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30 /*
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31 * Push data through the decoder/encoder, causing the output_fn (provided
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32 * to Create) to be called with the decoded/encoded data.
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33 */
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34
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35 extern SECStatus
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36 NSSBase64Decoder_Update (NSSBase64Decoder *data, const char *buffer,
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37 PRUint32 size);
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38
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39 extern SECStatus
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40 NSSBase64Encoder_Update (NSSBase64Encoder *data, const unsigned char *buffer,
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41 PRUint32 size);
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42
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43 /*
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44 * When you're done processing, call this to close the context.
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45 * If "abort_p" is false, then calling this may cause the output_fn
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46 * to be called one last time (as the last buffered data is flushed out).
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47 */
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48
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49 extern SECStatus
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50 NSSBase64Decoder_Destroy (NSSBase64Decoder *data, PRBool abort_p);
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51
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52 extern SECStatus
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53 NSSBase64Encoder_Destroy (NSSBase64Encoder *data, PRBool abort_p);
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54
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55 /*
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56 * Perform base64 decoding from an ascii string "inStr" to an Item.
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57 * The length of the input must be provided as "inLen". The Item
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58 * may be provided (as "outItemOpt"); you can also pass in a NULL
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59 * and the Item will be allocated for you.
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60 *
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61 * In any case, the data within the Item will be allocated for you.
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62 * All allocation will happen out of the passed-in "arenaOpt", if non-NULL.
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63 * If "arenaOpt" is NULL, standard allocation (heap) will be used and
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64 * you will want to free the result via SECITEM_FreeItem.
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65 *
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66 * Return value is NULL on error, the Item (allocated or provided) otherwise.
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67 */
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68 extern SECItem *
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69 NSSBase64_DecodeBuffer (PLArenaPool *arenaOpt, SECItem *outItemOpt,
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70 const char *inStr, unsigned int inLen);
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71
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72 /*
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73 * Perform base64 encoding of binary data "inItem" to an ascii string.
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74 * The output buffer may be provided (as "outStrOpt"); you can also pass
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75 * in a NULL and the buffer will be allocated for you. The result will
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76 * be null-terminated, and if the buffer is provided, "maxOutLen" must
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77 * specify the maximum length of the buffer and will be checked to
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78 * supply sufficient space space for the encoded result. (If "outStrOpt"
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79 * is NULL, "maxOutLen" is ignored.)
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80 *
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81 * If "outStrOpt" is NULL, allocation will happen out of the passed-in
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82 * "arenaOpt", if *it* is non-NULL, otherwise standard allocation (heap)
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83 * will be used.
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84 *
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85 * Return value is NULL on error, the output buffer (allocated or provided)
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86 * otherwise.
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87 */
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88 extern char *
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89 NSSBase64_EncodeItem (PLArenaPool *arenaOpt, char *outStrOpt,
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90 unsigned int maxOutLen, SECItem *inItem);
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91
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92 SEC_END_PROTOS
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93
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94 #endif /* _NSSB64_H_ */
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