DeforaOS/Phone
DeforaOS/Phone
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

First proof-of-concept implementation

Browse Source
This commit is contained in:
Pierre Pronchery 2010-06-03 01:22:27 +00:00
parent 638dbbf2d4
commit 46523cace4
1 changed files with 75 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

92
src/plugins/smscrypt.c
View File

@ -16,13 +16,27 @@
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <System.h>
#include "Phone.h"
/* SMSCrypt */
/* private */
/* types */
typedef struct _SMSCrypt
{
char * secret;
size_t secret_len;
} SMSCrypt;
/* prototypes */
static int _smscrypt_init(PhonePlugin * plugin);
static int _smscrypt_destroy(PhonePlugin * plugin);
static int _smscrypt_event(PhonePlugin * plugin, PhoneEvent event, ...);
static void _smscrypt_settings(PhonePlugin * plugin);
@ -35,7 +49,7 @@ PhonePlugin plugin =
"SMS encryption",
NULL,
_smscrypt_init,
NULL,
_smscrypt_destroy,
_smscrypt_event,
_smscrypt_settings,
NULL
@ -47,23 +61,51 @@ PhonePlugin plugin =
/* smscrypt_init */
static int _smscrypt_init(PhonePlugin * plugin)
{
SMSCrypt * smscrypt;
char const * secret;
if((secret = plugin->helper->config_get(plugin->helper->phone,
"smscrypt", "secret")) == NULL)
return 1;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s() secret=\"%s\"\n", __func__,
plugin->helper->config_get(plugin->helper->phone,
"smscrypt", "secret"));
fprintf(stderr, "DEBUG: %s() secret=\"%s\"\n", __func__, secret);
#endif
if((smscrypt = malloc(sizeof(*smscrypt))) == NULL)
return error_set_code(1, "%s", strerror(errno));
plugin->priv = smscrypt;
smscrypt->secret = strdup(secret);
smscrypt->secret_len = strlen(secret);
if(smscrypt->secret == NULL || smscrypt->secret_len == 0)
{
_smscrypt_destroy(plugin);
return error_set_code(1, "%s", strerror(errno));
}
return 0;
}
/* smscrypt_destroy */
static int _smscrypt_destroy(PhonePlugin * plugin)
{
SMSCrypt * smscrypt = plugin->priv;
if(smscrypt->secret != NULL)
memset(smscrypt->secret, 0, smscrypt->secret_len);
free(smscrypt->secret);
free(smscrypt);
return 0;
}
/* smscrypt_event */
static void _smscrypt_event_sms_received(PhoneEncoding * encoding, char ** buf,
size_t * len);
static void _smscrypt_event_sms_sending(PhoneEncoding * encoding, char ** buf,
size_t * len);
static void _smscrypt_event_sms_receiving(SMSCrypt * smscrypt,
PhoneEncoding * encoding, char ** buf, size_t * len);
static void _smscrypt_event_sms_sending(SMSCrypt * smscrypt,
PhoneEncoding * encoding, char ** buf, size_t * len);
static int _smscrypt_event(PhonePlugin * plugin, PhoneEvent event, ...)
{
SMSCrypt * smscrypt = plugin->priv;
va_list ap;
PhoneEncoding * encoding;
char ** buf;
@ -77,13 +119,15 @@ static int _smscrypt_event(PhonePlugin * plugin, PhoneEvent event, ...)
encoding = va_arg(ap, PhoneEncoding *);
buf = va_arg(ap, char **);
len = va_arg(ap, size_t *);
_smscrypt_event_sms_received(encoding, buf, len);
_smscrypt_event_sms_receiving(smscrypt, encoding, buf,
len);
break;
case PHONE_EVENT_SMS_SENDING:
encoding = va_arg(ap, PhoneEncoding *);
buf = va_arg(ap, char **);
len = va_arg(ap, size_t *);
_smscrypt_event_sms_sending(encoding, buf, len);
_smscrypt_event_sms_sending(smscrypt, encoding, buf,
len);
break;
/* ignore the rest */
default:
@ -93,28 +137,42 @@ static int _smscrypt_event(PhonePlugin * plugin, PhoneEvent event, ...)
return 0;
}
static void _smscrypt_event_sms_received(PhoneEncoding * encoding, char ** buf,
size_t * len)
static void _smscrypt_event_sms_receiving(SMSCrypt * smscrypt,
PhoneEncoding * encoding, char ** buf, size_t * len)
{
size_t i;
size_t j = 0;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%u, buf, %lu)\n", __func__, *encoding,
*len);
#endif
if(*encoding == PHONE_ENCODING_UTF8)
if(*encoding != PHONE_ENCODING_DATA)
return; /* not for us */
/* FIXME really implement */
for(i = 0; i < *len; i++)
{
(*buf)[i] ^= smscrypt->secret[j++];
j %= smscrypt->secret_len;
}
*encoding = PHONE_ENCODING_UTF8;
}
static void _smscrypt_event_sms_sending(PhoneEncoding * encoding, char ** buf,
size_t * len)
static void _smscrypt_event_sms_sending(SMSCrypt * smscrypt,
PhoneEncoding * encoding, char ** buf, size_t * len)
{
size_t i;
size_t j = 0;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(%u, buf, %lu)\n", __func__, *encoding, *len);
#endif
if(*encoding != PHONE_ENCODING_UTF8)
return; /* not for us */
/* FIXME really implement */
for(i = 0; i < *len; i++)
{
(*buf)[i] ^= smscrypt->secret[j++];
j %= smscrypt->secret_len;
}
*encoding = PHONE_ENCODING_DATA;
}