diff options
Diffstat (limited to 'plugins/FTPFileYM/curl-7.29.0/lib/pingpong.c')
| -rw-r--r-- | plugins/FTPFileYM/curl-7.29.0/lib/pingpong.c | 538 |
1 files changed, 0 insertions, 538 deletions
diff --git a/plugins/FTPFileYM/curl-7.29.0/lib/pingpong.c b/plugins/FTPFileYM/curl-7.29.0/lib/pingpong.c deleted file mode 100644 index 16b4ad37e4..0000000000 --- a/plugins/FTPFileYM/curl-7.29.0/lib/pingpong.c +++ /dev/null @@ -1,538 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2012, 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 - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * 'pingpong' is for generic back-and-forth support functions used by FTP, - * IMAP, POP3, SMTP and whatever more that likes them. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#include "urldata.h" -#include "sendf.h" -#include "select.h" -#include "progress.h" -#include "speedcheck.h" -#include "pingpong.h" -#include "multiif.h" -#include "non-ascii.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -#include "curl_memory.h" -/* The last #include file should be: */ -#include "memdebug.h" - -#ifdef USE_PINGPONG - -/* Returns timeout in ms. 0 or negative number means the timeout has already - triggered */ -long Curl_pp_state_timeout(struct pingpong *pp) -{ - struct connectdata *conn = pp->conn; - struct SessionHandle *data=conn->data; - long timeout_ms; /* in milliseconds */ - long timeout2_ms; /* in milliseconds */ - long response_time= (data->set.server_response_timeout)? - data->set.server_response_timeout: pp->response_time; - - /* if CURLOPT_SERVER_RESPONSE_TIMEOUT is set, use that to determine - remaining time, or use pp->response because SERVER_RESPONSE_TIMEOUT is - supposed to govern the response for any given server response, not for - the time from connect to the given server response. */ - - /* Without a requested timeout, we only wait 'response_time' seconds for the - full response to arrive before we bail out */ - timeout_ms = response_time - - Curl_tvdiff(Curl_tvnow(), pp->response); /* spent time */ - - if(data->set.timeout) { - /* if timeout is requested, find out how much remaining time we have */ - timeout2_ms = data->set.timeout - /* timeout time */ - Curl_tvdiff(Curl_tvnow(), conn->now); /* spent time */ - - /* pick the lowest number */ - timeout_ms = CURLMIN(timeout_ms, timeout2_ms); - } - - return timeout_ms; -} - - -/* - * Curl_pp_multi_statemach() - * - * called repeatedly until done when the multi interface is used. - */ -CURLcode Curl_pp_multi_statemach(struct pingpong *pp) -{ - struct connectdata *conn = pp->conn; - curl_socket_t sock = conn->sock[FIRSTSOCKET]; - int rc; - struct SessionHandle *data=conn->data; - CURLcode result = CURLE_OK; - long timeout_ms = Curl_pp_state_timeout(pp); - - if(timeout_ms <= 0) { - failf(data, "server response timeout"); - return CURLE_OPERATION_TIMEDOUT; - } - - rc = Curl_socket_ready(pp->sendleft?CURL_SOCKET_BAD:sock, /* reading */ - pp->sendleft?sock:CURL_SOCKET_BAD, /* writing */ - 0); - - if(rc == -1) { - failf(data, "select/poll error"); - return CURLE_OUT_OF_MEMORY; - } - else if(rc != 0) - result = pp->statemach_act(conn); - - /* if rc == 0, then select() timed out */ - - return result; -} - -/* - * Curl_pp_easy_statemach() - * - * called repeatedly until done when the easy interface is used. - */ -CURLcode Curl_pp_easy_statemach(struct pingpong *pp) -{ - struct connectdata *conn = pp->conn; - curl_socket_t sock = conn->sock[FIRSTSOCKET]; - int rc; - long interval_ms; - long timeout_ms = Curl_pp_state_timeout(pp); - struct SessionHandle *data=conn->data; - CURLcode result; - - if(timeout_ms <=0 ) { - failf(data, "server response timeout"); - return CURLE_OPERATION_TIMEDOUT; /* already too little time */ - } - - interval_ms = 1000; /* use 1 second timeout intervals */ - if(timeout_ms < interval_ms) - interval_ms = timeout_ms; - - rc = Curl_socket_ready(pp->sendleft?CURL_SOCKET_BAD:sock, /* reading */ - pp->sendleft?sock:CURL_SOCKET_BAD, /* writing */ - interval_ms); - - if(Curl_pgrsUpdate(conn)) - result = CURLE_ABORTED_BY_CALLBACK; - else - result = Curl_speedcheck(data, Curl_tvnow()); - - if(result) - ; - else if(rc == -1) { - failf(data, "select/poll error"); - result = CURLE_OUT_OF_MEMORY; - } - else if(rc) - result = pp->statemach_act(conn); - - return result; -} - -/* initialize stuff to prepare for reading a fresh new response */ -void Curl_pp_init(struct pingpong *pp) -{ - struct connectdata *conn = pp->conn; - pp->nread_resp = 0; - pp->linestart_resp = conn->data->state.buffer; - pp->pending_resp = TRUE; - pp->response = Curl_tvnow(); /* start response time-out now! */ -} - - - -/*********************************************************************** - * - * Curl_pp_vsendf() - * - * Send the formated string as a command to a pingpong server. Note that - * the string should not have any CRLF appended, as this function will - * append the necessary things itself. - * - * made to never block - */ -CURLcode Curl_pp_vsendf(struct pingpong *pp, - const char *fmt, - va_list args) -{ - ssize_t bytes_written; - size_t write_len; - char *fmt_crlf; - char *s; - CURLcode error; - struct connectdata *conn = pp->conn; - struct SessionHandle *data = conn->data; - -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - enum protection_level data_sec = conn->data_prot; -#endif - - DEBUGASSERT(pp->sendleft == 0); - DEBUGASSERT(pp->sendsize == 0); - DEBUGASSERT(pp->sendthis == NULL); - - fmt_crlf = aprintf("%s\r\n", fmt); /* append a trailing CRLF */ - if(!fmt_crlf) - return CURLE_OUT_OF_MEMORY; - - s = vaprintf(fmt_crlf, args); /* trailing CRLF appended */ - free(fmt_crlf); - if(!s) - return CURLE_OUT_OF_MEMORY; - - bytes_written = 0; - write_len = strlen(s); - - Curl_pp_init(pp); - - error = Curl_convert_to_network(data, s, write_len); - /* Curl_convert_to_network calls failf if unsuccessful */ - if(error) { - free(s); - return error; - } - -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - conn->data_prot = PROT_CMD; -#endif - error = Curl_write(conn, conn->sock[FIRSTSOCKET], s, write_len, - &bytes_written); -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - DEBUGASSERT(data_sec > PROT_NONE && data_sec < PROT_LAST); - conn->data_prot = data_sec; -#endif - - if(error) { - free(s); - return error; - } - - if(conn->data->set.verbose) - Curl_debug(conn->data, CURLINFO_HEADER_OUT, - s, (size_t)bytes_written, conn); - - if(bytes_written != (ssize_t)write_len) { - /* the whole chunk was not sent, keep it around and adjust sizes */ - pp->sendthis = s; - pp->sendsize = write_len; - pp->sendleft = write_len - bytes_written; - } - else { - free(s); - pp->sendthis = NULL; - pp->sendleft = pp->sendsize = 0; - pp->response = Curl_tvnow(); - } - - return CURLE_OK; -} - - -/*********************************************************************** - * - * Curl_pp_sendf() - * - * Send the formated string as a command to a pingpong server. Note that - * the string should not have any CRLF appended, as this function will - * append the necessary things itself. - * - * made to never block - */ -CURLcode Curl_pp_sendf(struct pingpong *pp, - const char *fmt, ...) -{ - CURLcode res; - va_list ap; - va_start(ap, fmt); - - res = Curl_pp_vsendf(pp, fmt, ap); - - va_end(ap); - - return res; -} - -/* - * Curl_pp_readresp() - * - * Reads a piece of a server response. - */ -CURLcode Curl_pp_readresp(curl_socket_t sockfd, - struct pingpong *pp, - int *code, /* return the server code if done */ - size_t *size) /* size of the response */ -{ - ssize_t perline; /* count bytes per line */ - bool keepon=TRUE; - ssize_t gotbytes; - char *ptr; - struct connectdata *conn = pp->conn; - struct SessionHandle *data = conn->data; - char * const buf = data->state.buffer; - CURLcode result = CURLE_OK; - - *code = 0; /* 0 for errors or not done */ - *size = 0; - - ptr=buf + pp->nread_resp; - - /* number of bytes in the current line, so far */ - perline = (ssize_t)(ptr-pp->linestart_resp); - - keepon=TRUE; - - while((pp->nread_resp<BUFSIZE) && (keepon && !result)) { - - if(pp->cache) { - /* we had data in the "cache", copy that instead of doing an actual - * read - * - * pp->cache_size is cast to ssize_t here. This should be safe, because - * it would have been populated with something of size int to begin - * with, even though its datatype may be larger than an int. - */ - DEBUGASSERT((ptr+pp->cache_size) <= (buf+BUFSIZE+1)); - memcpy(ptr, pp->cache, pp->cache_size); - gotbytes = (ssize_t)pp->cache_size; - free(pp->cache); /* free the cache */ - pp->cache = NULL; /* clear the pointer */ - pp->cache_size = 0; /* zero the size just in case */ - } - else { - int res; -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - enum protection_level prot = conn->data_prot; - conn->data_prot = PROT_CLEAR; -#endif - DEBUGASSERT((ptr+BUFSIZE-pp->nread_resp) <= (buf+BUFSIZE+1)); - res = Curl_read(conn, sockfd, ptr, BUFSIZE-pp->nread_resp, - &gotbytes); -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - DEBUGASSERT(prot > PROT_NONE && prot < PROT_LAST); - conn->data_prot = prot; -#endif - if(res == CURLE_AGAIN) - return CURLE_OK; /* return */ - - if((res == CURLE_OK) && (gotbytes > 0)) - /* convert from the network encoding */ - res = Curl_convert_from_network(data, ptr, gotbytes); - /* Curl_convert_from_network calls failf if unsuccessful */ - - if(CURLE_OK != res) { - result = (CURLcode)res; /* Set outer result variable to this error. */ - keepon = FALSE; - } - } - - if(!keepon) - ; - else if(gotbytes <= 0) { - keepon = FALSE; - result = CURLE_RECV_ERROR; - failf(data, "response reading failed"); - } - else { - /* we got a whole chunk of data, which can be anything from one - * byte to a set of lines and possible just a piece of the last - * line */ - ssize_t i; - ssize_t clipamount = 0; - bool restart = FALSE; - - data->req.headerbytecount += (long)gotbytes; - - pp->nread_resp += gotbytes; - for(i = 0; i < gotbytes; ptr++, i++) { - perline++; - if(*ptr=='\n') { - /* a newline is CRLF in pp-talk, so the CR is ignored as - the line isn't really terminated until the LF comes */ - - /* output debug output if that is requested */ -#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI) - if(!conn->sec_complete) -#endif - if(data->set.verbose) - Curl_debug(data, CURLINFO_HEADER_IN, - pp->linestart_resp, (size_t)perline, conn); - - /* - * We pass all response-lines to the callback function registered - * for "headers". The response lines can be seen as a kind of - * headers. - */ - result = Curl_client_write(conn, CLIENTWRITE_HEADER, - pp->linestart_resp, perline); - if(result) - return result; - - if(pp->endofresp(pp, code)) { - /* This is the end of the last line, copy the last line to the - start of the buffer and zero terminate, for old times sake (and - krb4)! */ - char *meow; - int n; - for(meow=pp->linestart_resp, n=0; meow<ptr; meow++, n++) - buf[n] = *meow; - *meow=0; /* zero terminate */ - keepon=FALSE; - pp->linestart_resp = ptr+1; /* advance pointer */ - i++; /* skip this before getting out */ - - *size = pp->nread_resp; /* size of the response */ - pp->nread_resp = 0; /* restart */ - break; - } - perline=0; /* line starts over here */ - pp->linestart_resp = ptr+1; - } - } - - if(!keepon && (i != gotbytes)) { - /* We found the end of the response lines, but we didn't parse the - full chunk of data we have read from the server. We therefore need - to store the rest of the data to be checked on the next invoke as - it may actually contain another end of response already! */ - clipamount = gotbytes - i; - restart = TRUE; - DEBUGF(infof(data, "Curl_pp_readresp_ %d bytes of trailing " - "server response left\n", - (int)clipamount)); - } - else if(keepon) { - - if((perline == gotbytes) && (gotbytes > BUFSIZE/2)) { - /* We got an excessive line without newlines and we need to deal - with it. We keep the first bytes of the line then we throw - away the rest. */ - infof(data, "Excessive server response line length received, " - "%zd bytes. Stripping\n", gotbytes); - restart = TRUE; - - /* we keep 40 bytes since all our pingpong protocols are only - interested in the first piece */ - clipamount = 40; - } - else if(pp->nread_resp > BUFSIZE/2) { - /* We got a large chunk of data and there's potentially still - trailing data to take care of, so we put any such part in the - "cache", clear the buffer to make space and restart. */ - clipamount = perline; - restart = TRUE; - } - } - else if(i == gotbytes) - restart = TRUE; - - if(clipamount) { - pp->cache_size = clipamount; - pp->cache = malloc(pp->cache_size); - if(pp->cache) - memcpy(pp->cache, pp->linestart_resp, pp->cache_size); - else - return CURLE_OUT_OF_MEMORY; - } - if(restart) { - /* now reset a few variables to start over nicely from the start of - the big buffer */ - pp->nread_resp = 0; /* start over from scratch in the buffer */ - ptr = pp->linestart_resp = buf; - perline = 0; - } - - } /* there was data */ - - } /* while there's buffer left and loop is requested */ - - pp->pending_resp = FALSE; - - return result; -} - -int Curl_pp_getsock(struct pingpong *pp, - curl_socket_t *socks, - int numsocks) -{ - struct connectdata *conn = pp->conn; - - if(!numsocks) - return GETSOCK_BLANK; - - socks[0] = conn->sock[FIRSTSOCKET]; - - if(pp->sendleft) { - /* write mode */ - return GETSOCK_WRITESOCK(0); - } - - /* read mode */ - return GETSOCK_READSOCK(0); -} - -CURLcode Curl_pp_flushsend(struct pingpong *pp) -{ - /* we have a piece of a command still left to send */ - struct connectdata *conn = pp->conn; - ssize_t written; - CURLcode result = CURLE_OK; - curl_socket_t sock = conn->sock[FIRSTSOCKET]; - - result = Curl_write(conn, sock, pp->sendthis + pp->sendsize - - pp->sendleft, pp->sendleft, &written); - if(result) - return result; - - if(written != (ssize_t)pp->sendleft) { - /* only a fraction was sent */ - pp->sendleft -= written; - } - else { - free(pp->sendthis); - pp->sendthis=NULL; - pp->sendleft = pp->sendsize = 0; - pp->response = Curl_tvnow(); - } - return CURLE_OK; -} - -CURLcode Curl_pp_disconnect(struct pingpong *pp) -{ - if(pp->cache) { - free(pp->cache); - pp->cache = NULL; - } - return CURLE_OK; -} - - - -#endif |