X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/5e1b22d763640c4d7a09d07920403d8d491b4410..refs/heads/switch-to-debhelper:/armor.c?ds=sidebyside diff --git a/armor.c b/armor.c index a730acd..9b61b1a 100644 --- a/armor.c +++ b/armor.c @@ -1,5 +1,6 @@ -/* - * 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 * @@ -21,14 +22,22 @@ #include "armor.h" #include "keystructs.h" -#include "log.h" #include "onak-conf.h" #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 /** @@ -46,7 +55,7 @@ static unsigned char encode64(unsigned char c) { } else if (c == 63) { c = '/'; } else { - log_assert(c < 64); + c = '?'; } return c; @@ -76,19 +85,20 @@ 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; }; @@ -154,7 +164,6 @@ static int armor_putchar_int(void *ctx, unsigned char c) unsigned char t; int i; - log_assert(ctx != NULL); state = (struct armor_context *) ctx; switch (state->curoctet++) { @@ -199,7 +208,6 @@ static int armor_putchar(void *ctx, size_t count, void *c) { int i; - log_assert(c != NULL); for (i = 0; i < count; i++) { armor_putchar_int(ctx, ((char *) c)[i]); @@ -209,19 +217,20 @@ 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; }; @@ -257,7 +266,6 @@ static int dearmor_getchar(void *ctx, unsigned char *c) unsigned char tmpc; int i; - log_assert(ctx != NULL); state = (struct dearmor_context *) ctx; *c = 0; @@ -313,15 +321,6 @@ 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, @@ -352,16 +351,6 @@ 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,