121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* ejabberd, Copyright (C) 2002-2012 ProcessOne
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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*/
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#include <erl_driver.h>
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#include <openssl/sha.h>
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#ifdef HAVE_MD2
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#include <openssl/md2.h>
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#endif
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/*
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* R15B changed several driver callbacks to use ErlDrvSizeT and
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* ErlDrvSSizeT typedefs instead of int.
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* This provides missing typedefs on older OTP versions.
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*/
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#if ERL_DRV_EXTENDED_MAJOR_VERSION < 2
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typedef int ErlDrvSizeT;
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typedef int ErlDrvSSizeT;
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#endif
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static ErlDrvData sha_drv_start(ErlDrvPort port, char *buf)
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{
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set_port_control_flags(port, PORT_CONTROL_FLAG_BINARY);
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return NULL;
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}
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static ErlDrvSSizeT sha_drv_control(ErlDrvData handle,
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unsigned int command,
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char *buf, ErlDrvSizeT len,
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char **rbuf, ErlDrvSizeT rlen)
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{
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ErlDrvBinary *b = NULL;
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switch (command) {
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#ifdef HAVE_MD2
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case 2:
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rlen = MD2_DIGEST_LENGTH;
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b = driver_alloc_binary(rlen);
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if (b) MD2((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
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break;
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#endif
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case 224:
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rlen = SHA224_DIGEST_LENGTH;
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b = driver_alloc_binary(rlen);
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if (b) SHA224((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
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break;
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case 256:
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rlen = SHA256_DIGEST_LENGTH;
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b = driver_alloc_binary(rlen);
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if (b) SHA256((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
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break;
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case 384:
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rlen = SHA384_DIGEST_LENGTH;
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b = driver_alloc_binary(rlen);
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if (b) SHA384((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
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break;
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case 512:
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rlen = SHA512_DIGEST_LENGTH;
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b = driver_alloc_binary(rlen);
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if (b) SHA512((unsigned char*)buf, len, (unsigned char*)b->orig_bytes);
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break;
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};
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if (b) {
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*rbuf = (char *)b;
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} else {
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*rbuf = NULL;
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rlen = 0;
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};
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return rlen;
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}
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ErlDrvEntry sha_driver_entry = {
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NULL, /* F_PTR init, N/A */
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sha_drv_start, /* L_PTR start, called when port is opened */
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NULL, /* F_PTR stop, called when port is closed */
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NULL, /* F_PTR output, called when erlang has sent */
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NULL, /* F_PTR ready_input, called when input descriptor ready */
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NULL, /* F_PTR ready_output, called when output descriptor ready */
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"sha_drv", /* char *driver_name, the argument to open_port */
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NULL, /* F_PTR finish, called when unloaded */
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NULL, /* handle */
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sha_drv_control, /* F_PTR control, port_command callback */
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NULL, /* F_PTR timeout, reserved */
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NULL, /* F_PTR outputv, reserved */
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/* Added in Erlang/OTP R15B: */
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NULL, /* ready_async */
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NULL, /* flush */
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NULL, /* call */
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NULL, /* event */
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ERL_DRV_EXTENDED_MARKER, /* extended_marker */
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ERL_DRV_EXTENDED_MAJOR_VERSION, /* major_version */
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ERL_DRV_EXTENDED_MINOR_VERSION, /* minor_version */
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0, /* driver_flags */
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NULL, /* handle2 */
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NULL, /* process_exit */
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NULL /* stop_select */
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};
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DRIVER_INIT(sha_drv) /* must match name in driver_entry */
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{
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return &sha_driver_entry;
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}
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