diff options
Diffstat (limited to 'gs/base/saes.c')
| -rw-r--r-- | gs/base/saes.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/gs/base/saes.c b/gs/base/saes.c index a08fc93a1..b7c2cc282 100644 --- a/gs/base/saes.c +++ b/gs/base/saes.c @@ -24,19 +24,19 @@ /* stream implementation */ private_st_aes_state(); /* creates a gc object for our state, - defined in saes.h */ + defined in saes.h */ /* Store a key in our crypt context */ int s_aes_set_key(stream_aes_state * state, const unsigned char *key, - int keylength) + int keylength) { int code = 0; if ( (keylength < 1) || (keylength > SAES_MAX_KEYLENGTH) ) - return_error(gs_error_rangecheck); + return_error(gs_error_rangecheck); if (key == NULL) - return_error(gs_error_invalidaccess); + return_error(gs_error_invalidaccess); /* we can't set the key here because the interpreter's filter implementation wants to duplicate our state @@ -90,7 +90,7 @@ s_aes_release(stream_state *ss) */ static int s_aes_process(stream_state * ss, stream_cursor_read * pr, - stream_cursor_write * pw, bool last) + stream_cursor_write * pw, bool last) { stream_aes_state *const state = (stream_aes_state *) ss; const unsigned char *limit; @@ -101,11 +101,11 @@ s_aes_process(stream_state * ss, stream_cursor_read * pr, /* figure out if we're going to run out of space */ if (in_size > out_size) { - limit = pr->ptr + out_size; - status = 1; /* need more output space */ + limit = pr->ptr + out_size; + status = 1; /* need more output space */ } else { - limit = pr->limit; - status = last ? EOFC : 0; /* need more input */ + limit = pr->limit; + status = last ? EOFC : 0; /* need more input */ } /* set up state and context */ @@ -114,30 +114,30 @@ s_aes_process(stream_state * ss, stream_cursor_read * pr, contains internal pointers, so we need to store it separately in immovable memory like any opaque structure. */ state->ctx = (aes_context *)gs_alloc_bytes_immovable(state->memory, - sizeof(aes_context), "aes context structure"); + sizeof(aes_context), "aes context structure"); if (state->ctx == NULL) { - gs_throw(gs_error_VMerror, "could not allocate aes context"); - return ERRC; + gs_throw(gs_error_VMerror, "could not allocate aes context"); + return ERRC; } if (state->keylength < 1 || state->keylength > SAES_MAX_KEYLENGTH) { - gs_throw1(gs_error_rangecheck, "invalid aes key length (%d bytes)", - state->keylength); - return ERRC; + gs_throw1(gs_error_rangecheck, "invalid aes key length (%d bytes)", + state->keylength); + return ERRC; } aes_setkey_dec(state->ctx, state->key, state->keylength * 8); } if (!state->initialized) { - /* read the initialization vector from the first 16 bytes */ - if (in_size < 16) return 0; /* get more data */ - memcpy(state->iv, pr->ptr + 1, 16); - state->initialized = 1; - pr->ptr += 16; + /* read the initialization vector from the first 16 bytes */ + if (in_size < 16) return 0; /* get more data */ + memcpy(state->iv, pr->ptr + 1, 16); + state->initialized = 1; + pr->ptr += 16; } /* decrypt available blocks */ while (pr->ptr + 16 <= limit) { aes_crypt_cbc(state->ctx, AES_DECRYPT, 16, state->iv, - pr->ptr + 1, temp); + pr->ptr + 1, temp); pr->ptr += 16; if (last && pr->ptr == pr->limit) { /* we're on the last block; unpad if necessary */ |