diff options
| -rw-r--r-- | lib/tftp.c | 94 |
1 files changed, 49 insertions, 45 deletions
diff --git a/lib/tftp.c b/lib/tftp.c index b9723c000..754cb24b2 100644 --- a/lib/tftp.c +++ b/lib/tftp.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -454,7 +454,7 @@ static CURLcode tftp_send_first(tftp_state_data_t *state, tftp_event_t event) char *filename; char buf[64]; struct SessionHandle *data = state->conn->data; - CURLcode res = CURLE_OK; + CURLcode result = CURLE_OK; /* Set ascii mode if -B flag was used */ if(data->set.prefer_ascii) @@ -469,7 +469,7 @@ static CURLcode tftp_send_first(tftp_state_data_t *state, tftp_event_t event) if(state->retries>state->retry_max) { state->error = TFTP_ERR_NORESPONSE; state->state = TFTP_STATE_FIN; - return res; + return result; } if(data->set.upload) { @@ -539,19 +539,19 @@ static CURLcode tftp_send_first(tftp_state_data_t *state, tftp_event_t event) case TFTP_EVENT_OACK: if(data->set.upload) { - res = tftp_connect_for_tx(state, event); + result = tftp_connect_for_tx(state, event); } else { - res = tftp_connect_for_rx(state, event); + result = tftp_connect_for_rx(state, event); } break; case TFTP_EVENT_ACK: /* Connected for transmit */ - res = tftp_connect_for_tx(state, event); + result = tftp_connect_for_tx(state, event); break; case TFTP_EVENT_DATA: /* Connected for receive */ - res = tftp_connect_for_rx(state, event); + result = tftp_connect_for_rx(state, event); break; case TFTP_EVENT_ERROR: @@ -562,7 +562,8 @@ static CURLcode tftp_send_first(tftp_state_data_t *state, tftp_event_t event) failf(state->conn->data, "tftp_send_first: internal error"); break; } - return res; + + return result; } /* the next blocknum is x + 1 but it needs to wrap at an unsigned 16bit @@ -702,7 +703,7 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) struct SessionHandle *data = state->conn->data; ssize_t sbytes; int rblock; - CURLcode res = CURLE_OK; + CURLcode result = CURLE_OK; struct SingleRequest *k = &data->req; switch(event) { @@ -728,7 +729,7 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) if(state->retries>state->retry_max) { failf(data, "tftp_tx: giving up waiting for block %d ack", state->block); - res = CURLE_SEND_ERROR; + result = CURLE_SEND_ERROR; } else { /* Re-send the data packet */ @@ -739,10 +740,11 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) /* Check all sbytes were sent */ if(sbytes<0) { failf(data, "%s", Curl_strerror(state->conn, SOCKERRNO)); - res = CURLE_SEND_ERROR; + result = CURLE_SEND_ERROR; } } - return res; + + return result; } /* This is the expected packet. Reset the counters and send the next block */ @@ -759,11 +761,13 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) state->state = TFTP_STATE_FIN; return CURLE_OK; } - res = Curl_fillreadbuffer(state->conn, state->blksize, &state->sbytes); - if(res) - return res; - sbytes = sendto(state->sockfd, (void *)state->spacket.data, - 4+state->sbytes, SEND_4TH_ARG, + + result = Curl_fillreadbuffer(state->conn, state->blksize, &state->sbytes); + if(result) + return result; + + sbytes = sendto(state->sockfd, (void *) state->spacket.data, + 4 + state->sbytes, SEND_4TH_ARG, (struct sockaddr *)&state->remote_addr, state->remote_addrlen); /* Check all sbytes were sent */ @@ -819,7 +823,7 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) break; } - return res; + return result; } /********************************************************** @@ -831,48 +835,47 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event) **********************************************************/ static CURLcode tftp_translate_code(tftp_error_t error) { - CURLcode code = CURLE_OK; + CURLcode result = CURLE_OK; if(error != TFTP_ERR_NONE) { switch(error) { case TFTP_ERR_NOTFOUND: - code = CURLE_TFTP_NOTFOUND; + result = CURLE_TFTP_NOTFOUND; break; case TFTP_ERR_PERM: - code = CURLE_TFTP_PERM; + result = CURLE_TFTP_PERM; break; case TFTP_ERR_DISKFULL: - code = CURLE_REMOTE_DISK_FULL; + result = CURLE_REMOTE_DISK_FULL; break; case TFTP_ERR_UNDEF: case TFTP_ERR_ILLEGAL: - code = CURLE_TFTP_ILLEGAL; + result = CURLE_TFTP_ILLEGAL; break; case TFTP_ERR_UNKNOWNID: - code = CURLE_TFTP_UNKNOWNID; + result = CURLE_TFTP_UNKNOWNID; break; case TFTP_ERR_EXISTS: - code = CURLE_REMOTE_FILE_EXISTS; + result = CURLE_REMOTE_FILE_EXISTS; break; case TFTP_ERR_NOSUCHUSER: - code = CURLE_TFTP_NOSUCHUSER; + result = CURLE_TFTP_NOSUCHUSER; break; case TFTP_ERR_TIMEOUT: - code = CURLE_OPERATION_TIMEDOUT; + result = CURLE_OPERATION_TIMEDOUT; break; case TFTP_ERR_NORESPONSE: - code = CURLE_COULDNT_CONNECT; + result = CURLE_COULDNT_CONNECT; break; default: - code= CURLE_ABORTED_BY_CALLBACK; + result = CURLE_ABORTED_BY_CALLBACK; break; } } - else { - code = CURLE_OK; - } + else + result = CURLE_OK; - return(code); + return result; } /********************************************************** @@ -885,20 +888,21 @@ static CURLcode tftp_translate_code(tftp_error_t error) static CURLcode tftp_state_machine(tftp_state_data_t *state, tftp_event_t event) { - CURLcode res = CURLE_OK; + CURLcode result = CURLE_OK; struct SessionHandle *data = state->conn->data; + switch(state->state) { case TFTP_STATE_START: DEBUGF(infof(data, "TFTP_STATE_START\n")); - res = tftp_send_first(state, event); + result = tftp_send_first(state, event); break; case TFTP_STATE_RX: DEBUGF(infof(data, "TFTP_STATE_RX\n")); - res = tftp_rx(state, event); + result = tftp_rx(state, event); break; case TFTP_STATE_TX: DEBUGF(infof(data, "TFTP_STATE_TX\n")); - res = tftp_tx(state, event); + result = tftp_tx(state, event); break; case TFTP_STATE_FIN: infof(data, "%s\n", "TFTP finished"); @@ -906,10 +910,11 @@ static CURLcode tftp_state_machine(tftp_state_data_t *state, default: DEBUGF(infof(data, "STATE: %d\n", state->state)); failf(data, "%s", "Internal state machine error"); - res = CURLE_TFTP_ILLEGAL; + result = CURLE_TFTP_ILLEGAL; break; } - return res; + + return result; } /********************************************************** @@ -943,7 +948,6 @@ static CURLcode tftp_disconnect(struct connectdata *conn, bool dead_connection) **********************************************************/ static CURLcode tftp_connect(struct connectdata *conn, bool *done) { - CURLcode code; tftp_state_data_t *state; int blksize, rc; @@ -1017,8 +1021,8 @@ static CURLcode tftp_connect(struct connectdata *conn, bool *done) Curl_pgrsStartNow(conn->data); *done = TRUE; - code = CURLE_OK; - return(code); + + return CURLE_OK; } /********************************************************** @@ -1031,7 +1035,7 @@ static CURLcode tftp_connect(struct connectdata *conn, bool *done) static CURLcode tftp_done(struct connectdata *conn, CURLcode status, bool premature) { - CURLcode code = CURLE_OK; + CURLcode result = CURLE_OK; tftp_state_data_t *state = (tftp_state_data_t *)conn->proto.tftpc; (void)status; /* unused */ @@ -1042,9 +1046,9 @@ static CURLcode tftp_done(struct connectdata *conn, CURLcode status, /* If we have encountered an error */ if(state) - code = tftp_translate_code(state->error); + result = tftp_translate_code(state->error); - return code; + return result; } /********************************************************** |