X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/8e58a1769ce5e492dd68904dfc81b6e077fc2a3a..76c5dd1081bc9db3bf446480457b52d4ae7b3891:/armor.c diff --git a/armor.c b/armor.c index d811e50..343f9d6 100644 --- a/armor.c +++ b/armor.c @@ -11,6 +11,7 @@ #include "armor.h" #include "keystructs.h" +#include "onak-conf.h" #include "parsekey.h" #define ARMOR_WIDTH 64 @@ -62,21 +63,6 @@ static unsigned char decode64(unsigned char c) { return c; } - -void putstring(int (*putchar_func)(void *ctx, unsigned char c), - void *ctx, - const char *string) -{ - int i; - - assert(putchar_func != NULL); - assert(string != NULL); - - for (i = 0; string[i] != 0; i++) { - putchar_func(ctx, string[i]); - } -} - /** * @lastoctet: The last octet we got. * @curoctet: The current octet we're expecting (0, 1 or 2). @@ -90,7 +76,7 @@ struct armor_context { int curoctet; int count; long crc24; - int (*putchar_func)(void *ctx, unsigned char c); + int (*putchar_func)(void *ctx, size_t count, unsigned char *c); void *ctx; }; @@ -104,36 +90,44 @@ static void armor_init(struct armor_context *ctx) static void armor_finish(struct armor_context *state) { + unsigned char c; + switch (state->curoctet++) { case 0: break; case 1: - state->putchar_func(state->ctx, - encode64((state->lastoctet & 3) << 4)); - state->putchar_func(state->ctx, '='); - state->putchar_func(state->ctx, '='); + c = encode64((state->lastoctet & 3) << 4); + state->putchar_func(state->ctx, 1, &c); + state->putchar_func(state->ctx, 1, (unsigned char *) "="); + state->putchar_func(state->ctx, 1, (unsigned char *) "="); break; case 2: - state->putchar_func(state->ctx, - encode64((state->lastoctet & 0xF) << 2)); - state->putchar_func(state->ctx, '='); + c = encode64((state->lastoctet & 0xF) << 2); + state->putchar_func(state->ctx, 1, &c); + state->putchar_func(state->ctx, 1, (unsigned char *) "="); break; } state->crc24 &= 0xffffffL; - state->putchar_func(state->ctx, '\n'); - state->putchar_func(state->ctx, '='); - state->putchar_func(state->ctx, encode64(state->crc24 >> 18)); - state->putchar_func(state->ctx, encode64((state->crc24 >> 12) & 0x3F)); - state->putchar_func(state->ctx, encode64((state->crc24 >> 6) & 0x3F)); - state->putchar_func(state->ctx, encode64(state->crc24 & 0x3F)); - state->putchar_func(state->ctx, '\n'); + state->putchar_func(state->ctx, 1, (unsigned char *) "\n"); + state->putchar_func(state->ctx, 1, (unsigned char *) "="); + c = encode64(state->crc24 >> 18); + state->putchar_func(state->ctx, 1, &c); + c = encode64((state->crc24 >> 12) & 0x3F); + state->putchar_func(state->ctx, 1, &c); + c = encode64((state->crc24 >> 6) & 0x3F); + state->putchar_func(state->ctx, 1, &c); + c = encode64(state->crc24 & 0x3F); + state->putchar_func(state->ctx, 1, &c); + state->putchar_func(state->ctx, 1, (unsigned char *) "\n"); } -static int armor_putchar(void *ctx, unsigned char c) + +static int armor_putchar_int(void *ctx, unsigned char c) { struct armor_context *state; + unsigned char t; int i; assert(ctx != NULL); @@ -141,18 +135,20 @@ static int armor_putchar(void *ctx, unsigned char c) switch (state->curoctet++) { case 0: - state->putchar_func(state->ctx, encode64(c >> 2)); + t = encode64(c >> 2); + state->putchar_func(state->ctx, 1, &t); state->count++; break; case 1: - state->putchar_func(state->ctx, - encode64(((state->lastoctet & 3) << 4) + (c >> 4))); + t = encode64(((state->lastoctet & 3) << 4) + (c >> 4)); + state->putchar_func(state->ctx, 1, &t); state->count++; break; case 2: - state->putchar_func(state->ctx, - encode64(((state->lastoctet & 0xF) << 2) + (c >> 6))); - state->putchar_func(state->ctx, encode64(c & 0x3F)); + t = encode64(((state->lastoctet & 0xF) << 2) + (c >> 6)); + state->putchar_func(state->ctx, 1, &t); + t = encode64(c & 0x3F); + state->putchar_func(state->ctx, 1, &t); state->count += 2; break; } @@ -168,12 +164,24 @@ static int armor_putchar(void *ctx, unsigned char c) } if ((state->count % ARMOR_WIDTH) == 0) { - state->putchar_func(state->ctx, '\n'); + state->putchar_func(state->ctx, 1, (unsigned char *) "\n"); } return 0; } + +static int armor_putchar(void *ctx, size_t count, unsigned char *c) +{ + int i; + + for (i = 0; i < count; i++) { + armor_putchar_int(ctx, c[i]); + } + + return 0; +} + /** * @lastoctet: The last octet we got. * @curoctet: The current octet we're expecting (0, 1 or 2). @@ -285,18 +293,20 @@ static int dearmor_getchar_c(void *ctx, size_t count, unsigned char *c) * This function ASCII armors a list of OpenPGP packets and outputs it * using putchar_func. */ -int armor_openpgp_stream(int (*putchar_func)(void *ctx, unsigned char c), +int armor_openpgp_stream(int (*putchar_func)(void *ctx, size_t count, + unsigned char *c), void *ctx, struct openpgp_packet_list *packets) { struct armor_context armor_ctx; - /* * Print armor header */ - putstring(putchar_func, ctx, "-----BEGIN PGP PUBLIC KEY BLOCK-----\n"); - putstring(putchar_func, ctx, "Version: onak 0.0.1\n\n"); + putchar_func(ctx, sizeof("-----BEGIN PGP PUBLIC KEY BLOCK-----\n") - 1, + (unsigned char *) "-----BEGIN PGP PUBLIC KEY BLOCK-----\n"); + putchar_func(ctx, sizeof("Version: onak " VERSION "\n\n") - 1, + (unsigned char *) "Version: onak " VERSION "\n\n"); armor_init(&armor_ctx); armor_ctx.putchar_func = putchar_func; @@ -307,7 +317,8 @@ int armor_openpgp_stream(int (*putchar_func)(void *ctx, unsigned char c), /* * Print armor footer */ - putstring(putchar_func, ctx, "-----END PGP PUBLIC KEY BLOCK-----\n"); + putchar_func(ctx, sizeof("-----END PGP PUBLIC KEY BLOCK-----\n") - 1, + (unsigned char *) "-----END PGP PUBLIC KEY BLOCK-----\n"); return 0; }