diff options
Diffstat (limited to 'src/afc.c')
| -rw-r--r-- | src/afc.c | 85 |
1 files changed, 34 insertions, 51 deletions
@@ -32,9 +32,6 @@ #include "common/debug.h" #include "endianness.h" -/** The maximum size an AFC data packet can be */ -static const int MAXIMUM_PACKET_SIZE = (2 << 15); - /** * Locks an AFC client, done for thread safety stuff * @@ -309,11 +306,6 @@ static afc_error_t afc_receive_data(afc_client_t client, char **bytes, uint32_t entire_len = (uint32_t)header.entire_length - sizeof(AFCPacket); this_len = (uint32_t)header.this_length - sizeof(AFCPacket); - /* this is here as a check (perhaps a different upper limit is good?) */ - if (entire_len > (uint32_t)MAXIMUM_PACKET_SIZE) { - fprintf(stderr, "%s: entire_len is larger than MAXIMUM_PACKET_SIZE, (%d > %d)!", __func__, entire_len, MAXIMUM_PACKET_SIZE); - } - dump_here = (char*)malloc(entire_len); if (this_len > 0) { service_receive(client->parent, dump_here, this_len, bytes_recv); @@ -795,7 +787,6 @@ afc_file_read(afc_client_t client, uint64_t handle, char *data, uint32_t length, { char *input = NULL; uint32_t current_count = 0, bytes_loc = 0; - const uint32_t MAXIMUM_READ_SIZE = 1 << 16; afc_error_t ret = AFC_E_SUCCESS; if (!client || !client->afc_packet || !client->parent || handle == 0) @@ -804,50 +795,42 @@ afc_file_read(afc_client_t client, uint64_t handle, char *data, uint32_t length, afc_lock(client); - /* Looping here to get around the maximum amount of data that - afc_receive_data can handle */ - while (current_count < length) { - debug_info("current count is %i but length is %i", current_count, length); - - /* Send the read command */ - struct { - uint64_t handle; - uint64_t size; - } readinfo; - readinfo.handle = handle; - readinfo.size = htole64(((length - current_count) < MAXIMUM_READ_SIZE) ? (length - current_count) : MAXIMUM_READ_SIZE); - ret = afc_dispatch_packet(client, AFC_OP_READ, (const char*)&readinfo, sizeof(readinfo), NULL, 0, &bytes_loc); - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - /* Receive the data */ - ret = afc_receive_data(client, &input, &bytes_loc); - debug_info("afc_receive_data returned error: %d", ret); - debug_info("bytes returned: %i", bytes_loc); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return ret; - } else if (bytes_loc == 0) { - if (input) - free(input); - afc_unlock(client); - *bytes_read = current_count; - /* FIXME: check that's actually a success */ - return ret; - } else { - if (input) { - debug_info("%d", bytes_loc); - memcpy(data + current_count, input, (bytes_loc > length) ? length : bytes_loc); - free(input); - input = NULL; - current_count += (bytes_loc > length) ? length : bytes_loc; - } + /* Send the read command */ + struct { + uint64_t handle; + uint64_t size; + } readinfo; + readinfo.handle = handle; + readinfo.size = htole64(length); + ret = afc_dispatch_packet(client, AFC_OP_READ, (const char*)&readinfo, sizeof(readinfo), NULL, 0, &bytes_loc); + + if (ret != AFC_E_SUCCESS) { + afc_unlock(client); + return AFC_E_NOT_ENOUGH_DATA; + } + /* Receive the data */ + ret = afc_receive_data(client, &input, &bytes_loc); + debug_info("afc_receive_data returned error: %d", ret); + debug_info("bytes returned: %i", bytes_loc); + if (ret != AFC_E_SUCCESS) { + afc_unlock(client); + return ret; + } else if (bytes_loc == 0) { + if (input) + free(input); + afc_unlock(client); + *bytes_read = current_count; + /* FIXME: check that's actually a success */ + return ret; + } else { + if (input) { + debug_info("%d", bytes_loc); + memcpy(data + current_count, input, (bytes_loc > length) ? length : bytes_loc); + free(input); + input = NULL; + current_count += (bytes_loc > length) ? length : bytes_loc; } } - debug_info("returning current_count as %i", current_count); - afc_unlock(client); *bytes_read = current_count; return ret; |