X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/f3143629476bae20f5310bbc0a59fe735b5d245d..3e6c8174ae89d13ae936129b0844d3fab5778152:/armor.c diff --git a/armor.c b/armor.c index 397118c..230510a 100644 --- a/armor.c +++ b/armor.c @@ -1,9 +1,21 @@ -/* - * armor.c - Routines to (de)armor OpenPGP packet streams. +/** + * @file armor.c + * @brief Routines to (de)armor OpenPGP packet streams. + * + * Copyright 2002-2004, 2011 Jonathan McDowell * - * Jonathan McDowell + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; version 2 of the License. * - * Copyright 2002 Project Purple + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include @@ -15,9 +27,18 @@ #include "parsekey.h" #include "version.h" +/** + * @brief Line length we'll use for armored output + */ #define ARMOR_WIDTH 64 +/** + * @brief CRC24 initialisation value + */ #define CRC24_INIT 0xb704ceL +/** + * @brief CRC24 polynomial value + */ #define CRC24_POLY 0x1864cfbL /** @@ -65,19 +86,20 @@ static unsigned char decode64(unsigned char c) { } /** - * @lastoctet: The last octet we got. - * @curoctet: The current octet we're expecting (0, 1 or 2). - * @count: The number of octets we've seen. - * @crc24: A running CRC24 of the data we've seen. - * @putchar_func: The function to output a character. - * @ctx: Context for putchar_func. + * @brief Holds the context of an ongoing ASCII armor operation */ struct armor_context { + /** The last octet we got. */ unsigned char lastoctet; + /** The current octet we're expecting (0, 1 or 2). */ int curoctet; + /** The number of octets we've seen. */ int count; + /** A running CRC24 of the data we've seen. */ long crc24; + /** The function to output a character. */ int (*putchar_func)(void *ctx, size_t count, void *c); + /** Context for putchar_func. */ void *ctx; }; @@ -198,19 +220,20 @@ static int armor_putchar(void *ctx, size_t count, void *c) } /** - * @lastoctet: The last octet we got. - * @curoctet: The current octet we're expecting (0, 1 or 2). - * @count: The number of octets we've seen. - * @crc24: A running CRC24 of the data we've seen. - * @putchar_func: The function to output a character. - * @ctx: Context for putchar_func. + * @brief Holds the context of an ongoing ASCII dearmor operation */ struct dearmor_context { + /** The last octet we got. */ unsigned char lastoctet; + /** The current octet we're expecting (0, 1 or 2). */ int curoctet; + /** The number of octets we've seen. */ int count; + /** A running CRC24 of the data we've seen. */ long crc24; + /** The function to get the next character. */ int (*getchar_func)(void *ctx, size_t count, void *c); + /** Context for getchar_func. */ void *ctx; }; @@ -302,15 +325,6 @@ static int dearmor_getchar_c(void *ctx, size_t count, void *c) return rc; } -/** - * armor_openpgp_stream - Takes a list of OpenPGP packets and armors it. - * @putchar_func: The function to output the next armor character. - * @ctx: The context pointer for putchar_func. - * @packets: The list of packets to output. - * - * This function ASCII armors a list of OpenPGP packets and outputs it - * using putchar_func. - */ int armor_openpgp_stream(int (*putchar_func)(void *ctx, size_t count, void *c), void *ctx, @@ -341,16 +355,6 @@ int armor_openpgp_stream(int (*putchar_func)(void *ctx, size_t count, return 0; } -/** - * dearmor_openpgp_stream - Reads & decodes an ACSII armored OpenPGP msg. - * @getchar_func: The function to get the next character from the stream. - * @ctx: The context pointer for getchar_func. - * @packets: The list of packets. - * - * This function uses getchar_func to read characters from an ASCII - * armored OpenPGP stream and outputs the data as a linked list of - * packets. - */ int dearmor_openpgp_stream(int (*getchar_func)(void *ctx, size_t count, void *c), void *ctx,