/**
* @name main:
*/
int main(int argc, char *argv[]) {
int rv = 0;
char **argp = argv;
gammu_state_t *s = NULL;
initialize_application_options(&app);
argc -= 1;
app.application_name = *argp++;
int n = parse_global_arguments(argc, argp, &app);
if (app.invalid) {
print_usage_error(U_ERR_ARGS_INVAL);
goto cleanup;
}
if (app.help) {
usage();
goto cleanup;
}
argc -= n;
argp += n;
/* Execute command:
* This runs the operation provided via command-line arguments. */
if (argc > 0) {
if (!process_command(&s, argc, argp, &rv)) {
print_usage_error(U_ERR_CMD_INVAL);
}
} else if (!app.repl) {
print_usage_error(U_ERR_CMD_MISSING);
goto cleanup;
}
/* Read, execute, print loop:
* Repeatedly read lines of JSON from standard input, parse
* them in to command/arguments tuples, dispatch these tuples
* to `process_command`, and repeat until reaching end-of-file. */
if (app.repl) {
process_repl_commands(&s, stdin);
}
cleanup:
if (s) {
gammu_destroy(s);
}
return rv;
}
/**
* @name process_repl_commands:
*/
void process_repl_commands(gammu_state_t **s, FILE *stream) {
for (;;) {
boolean_t is_eof = FALSE;
char *line = read_line(stream, &is_eof);
if (!line) {
break;
}
if (is_eof && line[0] == '\0') {
goto cleanup;
}
parsed_json_t *p = parse_json(line);
if (p) {
char **argv = NULL;
int argc = 0, err = 0;
boolean_t rv = parsed_json_to_arguments(p, &argc, &argv, &err);
if (!rv) {
print_json_validation_error(err);
goto cleanup_json;
}
int result = 0;
if (!process_command(s, argc, argv, &result)) {
if (!result) {
print_usage_error(U_ERR_CMD_INVAL);
}
goto cleanup_json;
}
} else {
print_json_validation_error(V_ERR_PARSE);
}
cleanup_json:
if (p) {
release_parsed_json(p);
}
cleanup:
free(line);
if (is_eof) {
break;
}
}
}
/**
* @name parse_global_arguments:
*/
int parse_global_arguments(int argc, char *argv[], app_options_t *o) {
int rv = 0;
char **argp = argv;
while (*argp != NULL) {
if (strcmp(*argp, "-h") == 0 || strcmp(*argp, "--help") == 0) {
o->help = TRUE;
break;
}
if (strcmp(*argp, "-c") == 0 || strcmp(*argp, "--config") == 0) {
if (*++argp == NULL) {
print_usage_error(U_ERR_CONFIG_MISSING);
o->invalid = TRUE;
break;
}
o->gammu_configuration_path = *argp++;
rv += 2;
continue;
}
if (strcmp(*argp, "-v") == 0 || strcmp(*argp, "--verbose") == 0) {
o->verbose = TRUE;
++argp; ++rv;
continue;
}
if (strcmp(*argp, "-r") == 0 || strcmp(*argp, "--repl") == 0) {
o->repl = TRUE;
++argp; ++rv;
/* FIXME: Remove this when REPL mode is stable */
warn("-r/--repl is experimental code");
continue;
}
break;
}
return rv;
}
/**
* @name action_delete_messages:
*/
int action_delete_messages(gammu_state_t **sp,
int argc, char *argv[]) {
int rv = 0;
bitfield_t *bf = NULL;
if (argc < 2) {
print_usage_error(U_ERR_LOC_MISSING);
return 1;
}
int delete_all = (strcmp(argv[1], "all") == 0);
if (!delete_all) {
unsigned long n;
boolean_t found = find_maximum_integer_argument(&n, &argv[1]);
if (!found) {
print_usage_error(U_ERR_LOC_INVAL);
rv = 2; goto cleanup;
}
if (n == ULONG_MAX && errno == ERANGE) {
print_usage_error(U_ERR_OVERFLOW);
rv = 3; goto cleanup;
}
bf = bitfield_create(n);
if (!bf) {
print_operation_error(OP_ERR_INDEX);
rv = 4; goto cleanup_delete;
}
if (!bitfield_set_integer_arguments(bf, &argv[1])) {
print_operation_error(OP_ERR_LOCATION);
rv = 5; goto cleanup_delete;
}
}
/* Lazy initialization of libgammu */
gammu_state_t *s = gammu_create_if_necessary(sp);
if (!s) {
print_operation_error(OP_ERR_INIT);
rv = 6; goto cleanup_delete;
}
printf("{ ");
if (!delete_selected_messages(s, bf)) {
print_operation_error(OP_ERR_DELETE);
rv = 7; goto cleanup_json;
}
cleanup_json:
printf(" }\n");
cleanup_delete:
if (bf) {
bitfield_destroy(bf);
}
cleanup:
return rv;
}
/**
* @name action_send_messages:
*/
int action_send_messages(gammu_state_t **sp,
int argc, char *argv[]) {
int rv = 0;
char **argp = &argv[1];
if (argc <= 2) {
print_usage_error(U_ERR_ARGS_MISSING);
return 1;
}
if (argc % 2 != 1) {
print_usage_error(U_ERR_ARGS_ODD);
return 2;
}
/* Lazy initialization of libgammu */
gammu_state_t *s = gammu_create_if_necessary(sp);
if (!s) {
print_operation_error(OP_ERR_INIT);
rv = 3; goto cleanup;
}
/* Allocate */
smsc_t *smsc = allocate(sizeof(*smsc));
multimessage_t *sms = allocate(sizeof(*sms));
multimessage_info_t *info = allocate(sizeof(*info));
/* Find SMSC number */
smsc->Location = 1;
if ((s->err = GSM_GetSMSC(s->sm, smsc)) != ERR_NONE) {
print_operation_error(OP_ERR_SMSC);
rv = 4; goto cleanup_sms;
}
transmit_status_t status;
initialize_transmit_status(&status);
GSM_SetSendSMSStatusCallback(
s->sm, _message_transmit_callback, &status
);
boolean_t is_start = TRUE;
unsigned int message_index = 0;
printf("[");
/* For each message... */
while (*argp != NULL) {
GSM_ClearMultiPartSMSInfo(info);
GSM_Debug_Info *debug = GSM_GetGlobalDebug();
/* Copy/convert destination phone number */
char *sms_destination_number = convert_utf8_utf16be(*argp++, FALSE);
if (!sms_destination_number) {
status.err = "Invalid UTF-8 sequence in destination number";
goto cleanup_end;
}
string_info_t nsi;
utf16be_string_info(sms_destination_number, &nsi);
/* Check size of phone number:
We'll be decoding this in to a fixed-sized buffer. */
if (nsi.units >= GSM_MAX_NUMBER_LENGTH) {
status.err = "Phone number is too long";
goto cleanup_transmit_status;
}
/* Missing message text:
This shouldn't happen since we check `argc` above,
but I'm leaving this here in case we refactor later. */
if (*argp == NULL) {
status.err = "No message body provided";
goto cleanup_transmit_status;
}
/* UTF-8 message content */
char *sms_message = *argp++;
/* Convert message from UTF-8 to UTF-16-BE:
Every symbol is two bytes long; the string is then
terminated by a single 2-byte UTF-16 null character. */
char *sms_message_utf16be = convert_utf8_utf16be(sms_message, FALSE);
if (!sms_message_utf16be) {
status.err = "Invalid UTF-8 sequence";
goto cleanup_transmit_status;
}
/* Prepare message info structure:
This information is used to encode the possibly-multipart SMS. */
info->Class = 1;
info->EntriesNum = 1;
info->Entries[0].ID = SMS_ConcatenatedTextLong;
info->Entries[0].Buffer = (uint8_t *) sms_message_utf16be;
info->UnicodeCoding = !utf16be_is_gsm_string(sms_message_utf16be);
if ((s->err = GSM_EncodeMultiPartSMS(debug, info, sms)) != ERR_NONE) {
status.err = "Failed to encode message";
goto cleanup_sms_text;
}
status.parts_sent = 0;
status.parts_total = sms->Number;
/* For each SMS part... */
for (unsigned int i = 0; i < sms->Number; i++) {
status.finished = FALSE;
status.message_part_index = i;
sms->SMS[i].PDU = SMS_Submit;
/* Copy destination phone number:
This is a fixed-size buffer; size was already checked above. */
CopyUnicodeString(sms->SMS[i].SMSC.Number, smsc->Number);
CopyUnicodeString(
sms->SMS[i].Number, (unsigned char *) sms_destination_number
);
/* Transmit a single message part */
if ((s->err = GSM_SendSMS(s->sm, &sms->SMS[i])) != ERR_NONE) {
status.parts[i].err = "Message transmission failed";
continue;
}
for (;;) {
/* Wait for reply */
GSM_ReadDevice(s->sm, TRUE);
if (status.finished) {
break;
}
}
if (!status.parts[i].transmitted) {
status.parts[i].err = "Message delivery failed";
continue;
}
status.parts_sent++;
}
cleanup_sms_text:
status.message_index = ++message_index;
free(sms_message_utf16be);
cleanup_transmit_status:
print_json_transmit_status(s, sms, &status, is_start);
free(sms_destination_number);
cleanup_end:
is_start = FALSE;
}
cleanup_sms:
free(sms);
free(smsc);
free(info);
printf("]\n");
cleanup:
return rv;
}
int main(int argc, char **argv)
{
EncodeInfo encInfo;
// To store size of image and secret file
uint src_img_size;
// Fill with sample filenames
encInfo.src_image_fname = "beautiful.bmp";
encInfo.secret_fname = "secret.txt";
encInfo.stego_image_fname = "stego_img.bmp";
// Test argument
if ((argc < 3))
{
print_usage_error("Invalid Arguments");
return 1;
}
//Test check_operation_type and read_and_validate_encode_args
if (read_and_validate_encode_args(argv, &encInfo) == e_failure)
{
print_usage_error("Invalid Entry. Not Supported");
return 1;
}
if (check_operation_type(argv) == e_encode)
{
// Test open_files
if (open_files_encode(&encInfo) == e_failure)
{
printf("ERROR: %s function failed\n", "open_files" );
return 1;
}
// Test get_image_size_for_bmp
encInfo.image_capacity = get_image_size_for_bmp(encInfo.fptr_src_image);
//printf("INFO: Image size = %u\n", encInfo.image_capacity);
// Test get_file_size
encInfo.size_secret_file = get_file_size(encInfo.fptr_secret);
//printf("INFO: secret size = %ld\n", encInfo.size_secret_file);
//Test check_capacity
if (check_capacity(&encInfo) == e_failure)
{
printf("%s has less capacity: %u.\n", encInfo.src_image_fname, encInfo.image_capacity );
close_files_encode(&encInfo);
return 1;
}
//Test copy_bmp_header
if (copy_bmp_header(encInfo.fptr_src_image, encInfo.fptr_stego_image) == e_failure)
{
printf("Did not copy\n");
close_files_encode(&encInfo);
return 1;
}
//Test encode_secret_file_size
if ( encode_secret_file_size(encInfo.size_secret_file, &encInfo) == e_failure)
{
printf("Did not encode secret file size.\n");
close_files_encode(&encInfo);
return 1;
}
//Test encode_secret_file_data [includes null too]
if ( encode_secret_file_data(&encInfo) == e_failure)
{
printf("Did not encode secret file data.\n");
close_files_encode(&encInfo);
return 1;
}
//Test copy_remaining_img_data [includes null too]
if ( copy_remaining_img_data(encInfo.fptr_src_image, encInfo.fptr_stego_image) == e_failure)
{
printf("Did not copy rest of the image data.\n");
close_files_encode(&encInfo);
return 1;
}
close_files_encode(&encInfo);
}
else if (check_operation_type(argv) == e_decode)
{
long size_secret_file;
// Test open_files_decode
if (open_files_decode(&encInfo) == e_failure)
{
printf("ERROR: %s function failed\n", "open_files" );
return 1;
}
//Test decode_secret_file_size
//printf("stegno is: %s \n", encInfo.stego_image_fname);
if (decode_secret_file_size(encInfo.fptr_stego_image, &size_secret_file) == e_failure)
{
printf("Did not decode file size.\n");
close_files_decode(&encInfo);
return 1;
}
//Test decode_secret_file_data
//size_secret_file = 24;
if (decode_secret_file_data(encInfo.fptr_secret, encInfo.fptr_stego_image, size_secret_file) == e_failure)
{
printf("Did not decode file data.\n");
close_files_decode(&encInfo);
return 1;
}
close_files_decode(&encInfo);
}
return 0;
}
/**
* This is the will be the entry point to your text editor.
*/
int main(int argc, char *argv[]) {
// Checking to see if the editor is being used correctly.
if (argc != 2) {
print_usage_error();
return 1;
}
// Setting up a docment based on the file named 'filename'.
char *filename = get_filename(argc, argv);
Document *document = Document_create_from_file(filename);
// Buffer for the command and length of said buffer
char *command = NULL;
size_t len = 0;
// This while loop will keep reading from stdin one line at a time
// until the user enters 'q' (the quit command).
int done = 0;
while (!done) {
getline(&command, &len, stdin);
int command_type;
// remove newline from the command
char *nl = strchr(command, '\n');
if (nl)
*nl = 0;
int stringlen = strlen(command);
// if 'q' or 's' is first character only 'q' or 's' is allowed as valid
// command
if ((command[0] == 'q' || command[0] == 's') && stringlen != 1) {
command_type = -1;
} else {
command_type = command[0];
}
switch (command_type) {
case 'p':
handle_display_command(document, command);
break;
case 'w':
handle_write_command(document, command);
break;
case 'a':
handle_append_command(document, command);
break;
case 'd':
handle_delete_command(document, command);
break;
case '/':
handle_search_command(document, command);
break;
case 's':
if (strlen(command) == 1) {
handle_save_command(document, filename);
} else {
invalid_command(command);
}
break;
case 'q':
done = 1;
Document_destroy(document);
break;
default:
invalid_command(command);
break;
}
}
// Need to free the buffer that we created.
if (command) {
free(command);
}
}