* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, 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.
+ * are also available at https://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
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
- * $Id$
***************************************************************************/
-#include "setup.h"
+#include "curl_setup.h"
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <errno.h>
-
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h> /* required for send() & recv() prototypes */
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
+#ifdef HAVE_LINUX_TCP_H
+#include <linux/tcp.h>
#endif
#include <curl/curl.h>
+
+#ifdef USE_TIZEN_FEATURE_DLP
+#include "extensions/curl_extensions.h"
+#endif
#include "urldata.h"
#include "sendf.h"
#include "connect.h"
-#include "sslgen.h"
+#include "vtls/vtls.h"
#include "ssh.h"
+#include "easyif.h"
#include "multiif.h"
-
-#define _MPRINTF_REPLACE /* use the internal *printf() functions */
-#include <curl/mprintf.h>
-
-#if defined(HAVE_KRB4) || defined(HAVE_GSSAPI)
-#include "krb4.h"
-#else
-#define Curl_sec_send(a,b,c,d) -1
-#define Curl_sec_read(a,b,c,d) -1
-#endif
-
-#include <string.h>
-#include "memory.h"
+#include "non-ascii.h"
#include "strerror.h"
-#include "easyif.h" /* for the Curl_convert_from_network prototype */
-/* The last #include file should be: */
-#include "memdebug.h"
+#include "select.h"
+#include "strdup.h"
-/* returns last node in linked list */
-static struct curl_slist *slist_get_last(struct curl_slist *list)
-{
- struct curl_slist *item;
-
- /* if caller passed us a NULL, return now */
- if(!list)
- return NULL;
-
- /* loop through to find the last item */
- item = list;
- while(item->next) {
- item = item->next;
- }
- return item;
-}
-
-/*
- * curl_slist_append() appends a string to the linked list. It always returns
- * the address of the first record, so that you can use this function as an
- * initialization function as well as an append function. If you find this
- * bothersome, then simply create a separate _init function and call it
- * appropriately from within the program.
- */
-struct curl_slist *curl_slist_append(struct curl_slist *list,
- const char *data)
-{
- struct curl_slist *last;
- struct curl_slist *new_item;
-
- new_item = malloc(sizeof(struct curl_slist));
- if(new_item) {
- char *dupdata = strdup(data);
- if(dupdata) {
- new_item->next = NULL;
- new_item->data = dupdata;
- }
- else {
- free(new_item);
- return NULL;
- }
- }
- else
- return NULL;
-
- if(list) {
- last = slist_get_last(list);
- last->next = new_item;
- return list;
- }
-
- /* if this is the first item, then new_item *is* the list */
- return new_item;
-}
-
-/* be nice and clean up resources */
-void curl_slist_free_all(struct curl_slist *list)
-{
- struct curl_slist *next;
- struct curl_slist *item;
-
- if(!list)
- return;
-
- item = list;
- do {
- next = item->next;
-
- if(item->data) {
- free(item->data);
- }
- free(item);
- item = next;
- } while(next);
-}
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
+#include "curl_memory.h"
+#include "memdebug.h"
#ifdef CURL_DO_LINEEND_CONV
/*
* blocks of data. Remaining, bare CRs are changed to LFs. The possibly new
* size of the data is returned.
*/
-static size_t convert_lineends(struct SessionHandle *data,
+static size_t convert_lineends(struct Curl_easy *data,
char *startPtr, size_t size)
{
char *inPtr, *outPtr;
/* sanity check */
if((startPtr == NULL) || (size < 1)) {
- return(size);
+ return size;
}
- if(data->state.prev_block_had_trailing_cr == TRUE) {
+ if(data->state.prev_block_had_trailing_cr) {
/* The previous block of incoming data
had a trailing CR, which was turned into a LF. */
if(*startPtr == '\n') {
/* This block of incoming data starts with the
previous block's LF so get rid of it */
- memmove(startPtr, startPtr+1, size-1);
+ memmove(startPtr, startPtr + 1, size-1);
size--;
/* and it wasn't a bare CR but a CRLF conversion instead */
data->state.crlf_conversions++;
inPtr = outPtr = memchr(startPtr, '\r', size);
if(inPtr) {
/* at least one CR, now look for CRLF */
- while(inPtr < (startPtr+size-1)) {
+ while(inPtr < (startPtr + size-1)) {
/* note that it's size-1, so we'll never look past the last byte */
if(memcmp(inPtr, "\r\n", 2) == 0) {
/* CRLF found, bump past the CR and copy the NL */
inPtr++;
} /* end of while loop */
- if(inPtr < startPtr+size) {
+ if(inPtr < startPtr + size) {
/* handle last byte */
if(*inPtr == '\r') {
/* deal with a CR at the end of the buffer */
*outPtr = *inPtr;
}
outPtr++;
- inPtr++;
}
- if(outPtr < startPtr+size) {
+ if(outPtr < startPtr + size)
/* tidy up by null terminating the now shorter data */
*outPtr = '\0';
- }
- return(outPtr - startPtr);
+
+ return (outPtr - startPtr);
}
- return(size);
+ return size;
}
#endif /* CURL_DO_LINEEND_CONV */
+#ifdef USE_RECV_BEFORE_SEND_WORKAROUND
+bool Curl_recv_has_postponed_data(struct connectdata *conn, int sockindex)
+{
+ struct postponed_data * const psnd = &(conn->postponed[sockindex]);
+ return psnd->buffer && psnd->allocated_size &&
+ psnd->recv_size > psnd->recv_processed;
+}
+
+static void pre_receive_plain(struct connectdata *conn, int num)
+{
+ const curl_socket_t sockfd = conn->sock[num];
+ struct postponed_data * const psnd = &(conn->postponed[num]);
+ size_t bytestorecv = psnd->allocated_size - psnd->recv_size;
+ /* WinSock will destroy unread received data if send() is
+ failed.
+ To avoid lossage of received data, recv() must be
+ performed before every send() if any incoming data is
+ available. However, skip this, if buffer is already full. */
+ if((conn->handler->protocol&PROTO_FAMILY_HTTP) != 0 &&
+ conn->recv[num] == Curl_recv_plain &&
+ (!psnd->buffer || bytestorecv)) {
+ const int readymask = Curl_socket_check(sockfd, CURL_SOCKET_BAD,
+ CURL_SOCKET_BAD, 0);
+ if(readymask != -1 && (readymask & CURL_CSELECT_IN) != 0) {
+ /* Have some incoming data */
+ if(!psnd->buffer) {
+ /* Use buffer double default size for intermediate buffer */
+ psnd->allocated_size = 2 * conn->data->set.buffer_size;
+ psnd->buffer = malloc(psnd->allocated_size);
+ psnd->recv_size = 0;
+ psnd->recv_processed = 0;
+#ifdef DEBUGBUILD
+ psnd->bindsock = sockfd; /* Used only for DEBUGASSERT */
+#endif /* DEBUGBUILD */
+ bytestorecv = psnd->allocated_size;
+ }
+ if(psnd->buffer) {
+ ssize_t recvedbytes;
+ DEBUGASSERT(psnd->bindsock == sockfd);
+ recvedbytes = sread(sockfd, psnd->buffer + psnd->recv_size,
+ bytestorecv);
+ if(recvedbytes > 0)
+ psnd->recv_size += recvedbytes;
+ }
+ else
+ psnd->allocated_size = 0;
+ }
+ }
+}
+
+static ssize_t get_pre_recved(struct connectdata *conn, int num, char *buf,
+ size_t len)
+{
+ struct postponed_data * const psnd = &(conn->postponed[num]);
+ size_t copysize;
+ if(!psnd->buffer)
+ return 0;
+
+ DEBUGASSERT(psnd->allocated_size > 0);
+ DEBUGASSERT(psnd->recv_size <= psnd->allocated_size);
+ DEBUGASSERT(psnd->recv_processed <= psnd->recv_size);
+ /* Check and process data that already received and storied in internal
+ intermediate buffer */
+ if(psnd->recv_size > psnd->recv_processed) {
+ DEBUGASSERT(psnd->bindsock == conn->sock[num]);
+ copysize = CURLMIN(len, psnd->recv_size - psnd->recv_processed);
+ memcpy(buf, psnd->buffer + psnd->recv_processed, copysize);
+ psnd->recv_processed += copysize;
+ }
+ else
+ copysize = 0; /* buffer was allocated, but nothing was received */
+
+ /* Free intermediate buffer if it has no unprocessed data */
+ if(psnd->recv_processed == psnd->recv_size) {
+ free(psnd->buffer);
+ psnd->buffer = NULL;
+ psnd->allocated_size = 0;
+ psnd->recv_size = 0;
+ psnd->recv_processed = 0;
+#ifdef DEBUGBUILD
+ psnd->bindsock = CURL_SOCKET_BAD;
+#endif /* DEBUGBUILD */
+ }
+ return (ssize_t)copysize;
+}
+#else /* ! USE_RECV_BEFORE_SEND_WORKAROUND */
+/* Use "do-nothing" macros instead of functions when workaround not used */
+bool Curl_recv_has_postponed_data(struct connectdata *conn, int sockindex)
+{
+ (void)conn;
+ (void)sockindex;
+ return false;
+}
+#define pre_receive_plain(c,n) do {} WHILE_FALSE
+#define get_pre_recved(c,n,b,l) 0
+#endif /* ! USE_RECV_BEFORE_SEND_WORKAROUND */
+
/* Curl_infof() is for info message along the way */
-void Curl_infof(struct SessionHandle *data, const char *fmt, ...)
+void Curl_infof(struct Curl_easy *data, const char *fmt, ...)
{
if(data && data->set.verbose) {
va_list ap;
* The message SHALL NOT include any LF or CR.
*/
-void Curl_failf(struct SessionHandle *data, const char *fmt, ...)
+void Curl_failf(struct Curl_easy *data, const char *fmt, ...)
{
- va_list ap;
- size_t len;
- va_start(ap, fmt);
-
- vsnprintf(data->state.buffer, BUFSIZE, fmt, ap);
+ if(data->set.verbose || data->set.errorbuffer) {
+ va_list ap;
+ size_t len;
+ char error[CURL_ERROR_SIZE + 2];
+ va_start(ap, fmt);
+ vsnprintf(error, CURL_ERROR_SIZE, fmt, ap);
+ len = strlen(error);
- if(data->set.errorbuffer && !data->state.errorbuf) {
- snprintf(data->set.errorbuffer, CURL_ERROR_SIZE, "%s", data->state.buffer);
- data->state.errorbuf = TRUE; /* wrote error string */
- }
- if(data->set.verbose) {
- len = strlen(data->state.buffer);
- if(len < BUFSIZE - 1) {
- data->state.buffer[len] = '\n';
- data->state.buffer[++len] = '\0';
+ if(data->set.errorbuffer && !data->state.errorbuf) {
+ strcpy(data->set.errorbuffer, error);
+ data->state.errorbuf = TRUE; /* wrote error string */
}
- Curl_debug(data, CURLINFO_TEXT, data->state.buffer, len, NULL);
+ if(data->set.verbose) {
+ error[len] = '\n';
+ error[++len] = '\0';
+ Curl_debug(data, CURLINFO_TEXT, error, len, NULL);
+ }
+ va_end(ap);
}
-
- va_end(ap);
}
-/* Curl_sendf() sends formated data to the server */
+/* Curl_sendf() sends formatted data to the server */
CURLcode Curl_sendf(curl_socket_t sockfd, struct connectdata *conn,
const char *fmt, ...)
{
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
ssize_t bytes_written;
size_t write_len;
- CURLcode res = CURLE_OK;
+ CURLcode result = CURLE_OK;
char *s;
char *sptr;
va_list ap;
if(!s)
return CURLE_OUT_OF_MEMORY; /* failure */
- bytes_written=0;
+ bytes_written = 0;
write_len = strlen(s);
sptr = s;
- while(1) {
+ for(;;) {
/* Write the buffer to the socket */
- res = Curl_write(conn, sockfd, sptr, write_len, &bytes_written);
+ result = Curl_write(conn, sockfd, sptr, write_len, &bytes_written);
- if(CURLE_OK != res)
+ if(result)
break;
if(data->set.verbose)
free(s); /* free the output string */
- return res;
+ return result;
}
-static ssize_t send_plain(struct connectdata *conn,
- int num,
- const void *mem,
- size_t len)
+/*
+ * Curl_write() is an internal write function that sends data to the
+ * server. Works with plain sockets, SCP, SSL or kerberos.
+ *
+ * If the write would block (CURLE_AGAIN), we return CURLE_OK and
+ * (*written == 0). Otherwise we return regular CURLcode value.
+ */
+CURLcode Curl_write(struct connectdata *conn,
+ curl_socket_t sockfd,
+ const void *mem,
+ size_t len,
+ ssize_t *written)
+{
+ ssize_t bytes_written;
+ CURLcode result = CURLE_OK;
+ int num = (sockfd == conn->sock[SECONDARYSOCKET]);
+
+#ifdef USE_TIZEN_FEATURE_DLP
+ /**
+ * Send data to Tizen DLP verification
+ */
+ curl_extensions_tizen_dlp_check_leak(conn->host.dispname, (char *const)mem,
+ len);
+#endif
+
+ bytes_written = conn->send[num](conn, num, mem, len, &result);
+
+ *written = bytes_written;
+ if(bytes_written >= 0)
+ /* we completely ignore the curlcode value when subzero is not returned */
+ return CURLE_OK;
+
+ /* handle CURLE_AGAIN or a send failure */
+ switch(result) {
+ case CURLE_AGAIN:
+ *written = 0;
+ return CURLE_OK;
+
+ case CURLE_OK:
+ /* general send failure */
+ return CURLE_SEND_ERROR;
+
+ default:
+ /* we got a specific curlcode, forward it */
+ return result;
+ }
+}
+
+ssize_t Curl_send_plain(struct connectdata *conn, int num,
+ const void *mem, size_t len, CURLcode *code)
{
curl_socket_t sockfd = conn->sock[num];
- ssize_t bytes_written = swrite(sockfd, mem, len);
+ ssize_t bytes_written;
+ /* WinSock will destroy unread received data if send() is
+ failed.
+ To avoid lossage of received data, recv() must be
+ performed before every send() if any incoming data is
+ available. */
+ pre_receive_plain(conn, num);
+
+#if defined(MSG_FASTOPEN) && !defined(TCP_FASTOPEN_CONNECT) /* Linux */
+ if(conn->bits.tcp_fastopen) {
+ bytes_written = sendto(sockfd, mem, len, MSG_FASTOPEN,
+ conn->ip_addr->ai_addr, conn->ip_addr->ai_addrlen);
+ conn->bits.tcp_fastopen = FALSE;
+ }
+ else
+#endif
+ bytes_written = swrite(sockfd, mem, len);
+ *code = CURLE_OK;
if(-1 == bytes_written) {
int err = SOCKERRNO;
(WSAEWOULDBLOCK == err)
#else
/* errno may be EWOULDBLOCK or on some systems EAGAIN when it returned
- due to its inability to send off data without blocking. We therefor
+ due to its inability to send off data without blocking. We therefore
treat both error codes the same here */
- (EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err)
+ (EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err) ||
+ (EINPROGRESS == err)
#endif
- )
+ ) {
/* this is just a case of EWOULDBLOCK */
- bytes_written=0;
- else
+ bytes_written = 0;
+ *code = CURLE_AGAIN;
+ }
+ else {
failf(conn->data, "Send failure: %s",
Curl_strerror(conn, err));
+ conn->data->state.os_errno = err;
+ *code = CURLE_SEND_ERROR;
+ }
}
return bytes_written;
}
/*
- * Curl_write() is an internal write function that sends data to the
- * server. Works with plain sockets, SCP, SSL or kerberos.
- */
-CURLcode Curl_write(struct connectdata *conn,
- curl_socket_t sockfd,
- const void *mem,
- size_t len,
- ssize_t *written)
-{
- ssize_t bytes_written;
- CURLcode retcode;
- int num = (sockfd == conn->sock[SECONDARYSOCKET]);
-
- if(conn->ssl[num].state == ssl_connection_complete)
- bytes_written = Curl_ssl_send(conn, num, mem, len);
- else if(Curl_ssh_enabled(conn, PROT_SCP))
- bytes_written = Curl_scp_send(conn, num, mem, len);
- else if(Curl_ssh_enabled(conn, PROT_SFTP))
- bytes_written = Curl_sftp_send(conn, num, mem, len);
- else if(conn->sec_complete)
- bytes_written = Curl_sec_send(conn, num, mem, len);
- else
- bytes_written = send_plain(conn, num, mem, len);
-
- *written = bytes_written;
- retcode = (-1 != bytes_written)?CURLE_OK:CURLE_SEND_ERROR;
-
- return retcode;
-}
-
-/*
* Curl_write_plain() is an internal write function that sends data to the
* server using plain sockets only. Otherwise meant to have the exact same
* proto as Curl_write()
ssize_t *written)
{
ssize_t bytes_written;
- CURLcode retcode;
+ CURLcode result;
int num = (sockfd == conn->sock[SECONDARYSOCKET]);
- bytes_written = send_plain(conn, num, mem, len);
+ bytes_written = Curl_send_plain(conn, num, mem, len, &result);
*written = bytes_written;
- retcode = (-1 != bytes_written)?CURLE_OK:CURLE_SEND_ERROR;
- return retcode;
+ return result;
}
-static CURLcode pausewrite(struct SessionHandle *data,
+ssize_t Curl_recv_plain(struct connectdata *conn, int num, char *buf,
+ size_t len, CURLcode *code)
+{
+ curl_socket_t sockfd = conn->sock[num];
+ ssize_t nread;
+ /* Check and return data that already received and storied in internal
+ intermediate buffer */
+ nread = get_pre_recved(conn, num, buf, len);
+ if(nread > 0) {
+ *code = CURLE_OK;
+ return nread;
+ }
+
+ nread = sread(sockfd, buf, len);
+
+ *code = CURLE_OK;
+ if(-1 == nread) {
+ int err = SOCKERRNO;
+
+ if(
+#ifdef WSAEWOULDBLOCK
+ /* This is how Windows does it */
+ (WSAEWOULDBLOCK == err)
+#else
+ /* errno may be EWOULDBLOCK or on some systems EAGAIN when it returned
+ due to its inability to send off data without blocking. We therefore
+ treat both error codes the same here */
+ (EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err)
+#endif
+ ) {
+ /* this is just a case of EWOULDBLOCK */
+ *code = CURLE_AGAIN;
+ }
+ else {
+ failf(conn->data, "Recv failure: %s",
+ Curl_strerror(conn, err));
+ conn->data->state.os_errno = err;
+ *code = CURLE_RECV_ERROR;
+ }
+ }
+ return nread;
+}
+
+static CURLcode pausewrite(struct Curl_easy *data,
int type, /* what type of data */
const char *ptr,
size_t len)
we want to send we need to dup it to save a copy for when the sending
is again enabled */
struct SingleRequest *k = &data->req;
- char *dupl = malloc(len);
- if(!dupl)
- return CURLE_OUT_OF_MEMORY;
+ struct UrlState *s = &data->state;
+ char *dupl;
+ unsigned int i;
+ bool newtype = TRUE;
+
+ if(s->tempcount) {
+ for(i = 0; i< s->tempcount; i++) {
+ if(s->tempwrite[i].type == type) {
+ /* data for this type exists */
+ newtype = FALSE;
+ break;
+ }
+ }
+ DEBUGASSERT(i < 3);
+ }
+ else
+ i = 0;
+
+ if(!newtype) {
+ /* append new data to old data */
+
+ /* figure out the new size of the data to save */
+ size_t newlen = len + s->tempwrite[i].len;
+ /* allocate the new memory area */
+ char *newptr = realloc(s->tempwrite[i].buf, newlen);
+ if(!newptr)
+ return CURLE_OUT_OF_MEMORY;
+ /* copy the new data to the end of the new area */
+ memcpy(newptr + s->tempwrite[i].len, ptr, len);
- memcpy(dupl, ptr, len);
+ /* update the pointer and the size */
+ s->tempwrite[i].buf = newptr;
+ s->tempwrite[i].len = newlen;
+ }
+ else {
+ dupl = Curl_memdup(ptr, len);
+ if(!dupl)
+ return CURLE_OUT_OF_MEMORY;
- /* store this information in the state struct for later use */
- data->state.tempwrite = dupl;
- data->state.tempwritesize = len;
- data->state.tempwritetype = type;
+ /* store this information in the state struct for later use */
+ s->tempwrite[i].buf = dupl;
+ s->tempwrite[i].len = len;
+ s->tempwrite[i].type = type;
+
+ if(newtype)
+ s->tempcount++;
+ }
/* mark the connection as RECV paused */
- k->keepon |= KEEP_READ_PAUSE;
+ k->keepon |= KEEP_RECV_PAUSE;
- DEBUGF(infof(data, "Pausing with %d bytes in buffer for type %02x\n",
- (int)len, type));
+ DEBUGF(infof(data, "Paused %zu bytes in buffer for type %02x\n",
+ len, type));
return CURLE_OK;
}
-/* client_write() sends data to the write callback(s)
-
- The bit pattern defines to what "streams" to write to. Body and/or header.
- The defines are in sendf.h of course.
-
- If CURL_DO_LINEEND_CONV is enabled, data is converted IN PLACE to the
- local character encoding. This is a problem and should be changed in
- the future to leave the original data alone.
+/* chop_write() writes chunks of data not larger than CURL_MAX_WRITE_SIZE via
+ * client write callback(s) and takes care of pause requests from the
+ * callbacks.
*/
-CURLcode Curl_client_write(struct connectdata *conn,
+static CURLcode chop_write(struct connectdata *conn,
int type,
- char *ptr,
- size_t len)
+ char *optr,
+ size_t olen)
{
- struct SessionHandle *data = conn->data;
- size_t wrote;
+ struct Curl_easy *data = conn->data;
+ curl_write_callback writeheader = NULL;
+ curl_write_callback writebody = NULL;
+ char *ptr = optr;
+ size_t len = olen;
- /* If reading is actually paused, we're forced to append this chunk of data
- to the already held data, but only if it is the same type as otherwise it
- can't work and it'll return error instead. */
- if(data->req.keepon & KEEP_READ_PAUSE) {
- size_t newlen;
- char *newptr;
- if(type != data->state.tempwritetype)
- /* major internal confusion */
- return CURLE_RECV_ERROR;
+ if(!len)
+ return CURLE_OK;
- DEBUGASSERT(data->state.tempwrite);
+ /* If reading is paused, append this data to the already held data for this
+ type. */
+ if(data->req.keepon & KEEP_RECV_PAUSE)
+ return pausewrite(data, type, ptr, len);
- /* figure out the new size of the data to save */
- newlen = len + data->state.tempwritesize;
- /* allocate the new memory area */
- newptr = realloc(data->state.tempwrite, newlen);
- if(!newptr)
- return CURLE_OUT_OF_MEMORY;
- /* copy the new data to the end of the new area */
- memcpy(newptr + data->state.tempwritesize, ptr, len);
- /* update the pointer and the size */
- data->state.tempwrite = newptr;
- data->state.tempwritesize = newlen;
-
- return CURLE_OK;
+ /* Determine the callback(s) to use. */
+ if(type & CLIENTWRITE_BODY)
+ writebody = data->set.fwrite_func;
+ if((type & CLIENTWRITE_HEADER) &&
+ (data->set.fwrite_header || data->set.writeheader)) {
+ /*
+ * Write headers to the same callback or to the especially setup
+ * header callback function (added after version 7.7.1).
+ */
+ writeheader =
+ data->set.fwrite_header? data->set.fwrite_header: data->set.fwrite_func;
}
- if(0 == len)
- len = strlen(ptr);
+ /* Chop data, write chunks. */
+ while(len) {
+ size_t chunklen = len <= CURL_MAX_WRITE_SIZE? len: CURL_MAX_WRITE_SIZE;
- if(type & CLIENTWRITE_BODY) {
- if((conn->protocol&PROT_FTP) && conn->proto.ftpc.transfertype == 'A') {
-#ifdef CURL_DOES_CONVERSIONS
- /* convert from the network encoding */
- size_t rc;
- rc = Curl_convert_from_network(data, ptr, len);
- /* Curl_convert_from_network calls failf if unsuccessful */
- if(rc != CURLE_OK)
- return rc;
-#endif /* CURL_DOES_CONVERSIONS */
+ if(writebody) {
+ size_t wrote = writebody(ptr, 1, chunklen, data->set.out);
-#ifdef CURL_DO_LINEEND_CONV
- /* convert end-of-line markers */
- len = convert_lineends(data, ptr, len);
-#endif /* CURL_DO_LINEEND_CONV */
- }
- /* If the previous block of data ended with CR and this block of data is
- just a NL, then the length might be zero */
- if(len) {
- wrote = data->set.fwrite_func(ptr, 1, len, data->set.out);
- }
- else {
- wrote = len;
+ if(CURL_WRITEFUNC_PAUSE == wrote) {
+ if(conn->handler->flags & PROTOPT_NONETWORK) {
+ /* Protocols that work without network cannot be paused. This is
+ actually only FILE:// just now, and it can't pause since the
+ transfer isn't done using the "normal" procedure. */
+ failf(data, "Write callback asked for PAUSE when not supported!");
+ return CURLE_WRITE_ERROR;
+ }
+ return pausewrite(data, type, ptr, len);
+ }
+ if(wrote != chunklen) {
+ failf(data, "Failed writing body (%zu != %zu)", wrote, chunklen);
+ return CURLE_WRITE_ERROR;
+ }
}
- if(CURL_WRITEFUNC_PAUSE == wrote)
- return pausewrite(data, type, ptr, len);
-
- if(wrote != len) {
- failf(data, "Failed writing body (%d != %d)", (int)wrote, (int)len);
- return CURLE_WRITE_ERROR;
- }
+ ptr += chunklen;
+ len -= chunklen;
}
- if((type & CLIENTWRITE_HEADER) &&
- (data->set.fwrite_header || data->set.writeheader) ) {
- /*
- * Write headers to the same callback or to the especially setup
- * header callback function (added after version 7.7.1).
- */
- curl_write_callback writeit=
- data->set.fwrite_header?data->set.fwrite_header:data->set.fwrite_func;
+ if(writeheader) {
+ size_t wrote;
+ ptr = optr;
+ len = olen;
+ Curl_set_in_callback(data, true);
+ wrote = writeheader(ptr, 1, len, data->set.writeheader);
+ Curl_set_in_callback(data, false);
- /* Note: The header is in the host encoding
- regardless of the ftp transfer mode (ASCII/Image) */
-
- wrote = writeit(ptr, 1, len, data->set.writeheader);
if(CURL_WRITEFUNC_PAUSE == wrote)
/* here we pass in the HEADER bit only since if this was body as well
- then it was passed already and clearly that didn't trigger the pause,
- so this is saved for later with the HEADER bit only */
+ then it was passed already and clearly that didn't trigger the
+ pause, so this is saved for later with the HEADER bit only */
return pausewrite(data, CLIENTWRITE_HEADER, ptr, len);
if(wrote != len) {
- failf (data, "Failed writing header");
+ failf(data, "Failed writing header");
return CURLE_WRITE_ERROR;
}
}
return CURLE_OK;
}
-int Curl_read_plain(curl_socket_t sockfd,
+
+/* Curl_client_write() sends data to the write callback(s)
+
+ The bit pattern defines to what "streams" to write to. Body and/or header.
+ The defines are in sendf.h of course.
+
+ If CURL_DO_LINEEND_CONV is enabled, data is converted IN PLACE to the
+ local character encoding. This is a problem and should be changed in
+ the future to leave the original data alone.
+ */
+CURLcode Curl_client_write(struct connectdata *conn,
+ int type,
+ char *ptr,
+ size_t len)
+{
+ struct Curl_easy *data = conn->data;
+
+ if(0 == len)
+ len = strlen(ptr);
+
+ DEBUGASSERT(type <= 3);
+
+ /* FTP data may need conversion. */
+ if((type & CLIENTWRITE_BODY) &&
+ (conn->handler->protocol & PROTO_FAMILY_FTP) &&
+ conn->proto.ftpc.transfertype == 'A') {
+ /* convert from the network encoding */
+ CURLcode result = Curl_convert_from_network(data, ptr, len);
+ /* Curl_convert_from_network calls failf if unsuccessful */
+ if(result)
+ return result;
+
+#ifdef CURL_DO_LINEEND_CONV
+ /* convert end-of-line markers */
+ len = convert_lineends(data, ptr, len);
+#endif /* CURL_DO_LINEEND_CONV */
+ }
+
+ return chop_write(conn, type, ptr, len);
+}
+
+CURLcode Curl_read_plain(curl_socket_t sockfd,
char *buf,
size_t bytesfromsocket,
ssize_t *n)
if(-1 == nread) {
int err = SOCKERRNO;
+ int return_error;
#ifdef USE_WINSOCK
- if(WSAEWOULDBLOCK == err)
+ return_error = WSAEWOULDBLOCK == err;
#else
- if((EWOULDBLOCK == err) || (EAGAIN == err) || (EINTR == err))
+ return_error = EWOULDBLOCK == err || EAGAIN == err || EINTR == err;
#endif
- return -1;
- else
- return CURLE_RECV_ERROR;
+ if(return_error)
+ return CURLE_AGAIN;
+ return CURLE_RECV_ERROR;
}
/* we only return number of bytes read when we return OK */
return CURLE_OK;
}
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-
/*
* Internal read-from-socket function. This is meant to deal with plain
* sockets, SSL sockets and kerberos sockets.
*
- * If the read would block (EWOULDBLOCK) we return -1. Otherwise we return
- * a regular CURLcode value.
+ * Returns a regular CURLcode value.
*/
-int Curl_read(struct connectdata *conn, /* connection data */
- curl_socket_t sockfd, /* read from this socket */
- char *buf, /* store read data here */
- size_t sizerequested, /* max amount to read */
- ssize_t *n) /* amount bytes read */
+CURLcode Curl_read(struct connectdata *conn, /* connection data */
+ curl_socket_t sockfd, /* read from this socket */
+ char *buf, /* store read data here */
+ size_t sizerequested, /* max amount to read */
+ ssize_t *n) /* amount bytes read */
{
+ CURLcode result = CURLE_RECV_ERROR;
ssize_t nread = 0;
size_t bytesfromsocket = 0;
char *buffertofill = NULL;
- bool pipelining = (bool)(conn->data->multi &&
- Curl_multi_canPipeline(conn->data->multi));
+ struct Curl_easy *data = conn->data;
+
+ /* if HTTP/1 pipelining is both wanted and possible */
+ bool pipelining = Curl_pipeline_wanted(data->multi, CURLPIPE_HTTP1) &&
+ (conn->bundle->multiuse == BUNDLE_PIPELINING);
/* Set 'num' to 0 or 1, depending on which socket that has been sent here.
If it is the second socket, we set num to 1. Otherwise to 0. This lets
us use the correct ssl handle. */
int num = (sockfd == conn->sock[SECONDARYSOCKET]);
- *n=0; /* reset amount to zero */
+ *n = 0; /* reset amount to zero */
/* If session can pipeline, check connection buffer */
if(pipelining) {
- size_t bytestocopy = MIN(conn->buf_len - conn->read_pos, sizerequested);
+ size_t bytestocopy = CURLMIN(conn->buf_len - conn->read_pos,
+ sizerequested);
/* Copy from our master buffer first if we have some unread data there*/
if(bytestocopy > 0) {
}
/* If we come here, it means that there is no data to read from the buffer,
* so we read from the socket */
- bytesfromsocket = MIN(sizerequested, BUFSIZE * sizeof (char));
+ bytesfromsocket = CURLMIN(sizerequested, MASTERBUF_SIZE);
buffertofill = conn->master_buffer;
}
else {
- bytesfromsocket = MIN((long)sizerequested, conn->data->set.buffer_size ?
- conn->data->set.buffer_size : BUFSIZE);
+ bytesfromsocket = CURLMIN(sizerequested, (size_t)data->set.buffer_size);
buffertofill = buf;
}
- if(conn->ssl[num].state == ssl_connection_complete) {
- nread = Curl_ssl_recv(conn, num, buffertofill, bytesfromsocket);
+ nread = conn->recv[num](conn, num, buffertofill, bytesfromsocket, &result);
+ if(nread < 0)
+ return result;
- if(nread == -1) {
- return -1; /* -1 from Curl_ssl_recv() means EWOULDBLOCK */
- }
- }
- else if(Curl_ssh_enabled(conn, (PROT_SCP|PROT_SFTP))) {
- if(conn->protocol & PROT_SCP)
- nread = Curl_scp_recv(conn, num, buffertofill, bytesfromsocket);
- else if(conn->protocol & PROT_SFTP)
- nread = Curl_sftp_recv(conn, num, buffertofill, bytesfromsocket);
-#ifdef LIBSSH2CHANNEL_EAGAIN
- if((nread == LIBSSH2CHANNEL_EAGAIN) || (nread == 0))
- /* EWOULDBLOCK */
- return -1;
-#endif
- if(nread < 0)
- /* since it is negative and not EGAIN, it was a protocol-layer error */
- return CURLE_RECV_ERROR;
- }
- else {
- if(conn->sec_complete)
- nread = Curl_sec_read(conn, sockfd, buffertofill,
- bytesfromsocket);
- else {
- int ret = Curl_read_plain(sockfd, buffertofill, bytesfromsocket,
- &nread);
- if(ret)
- return ret;
- }
+ if(pipelining) {
+ memcpy(buf, conn->master_buffer, nread);
+ conn->buf_len = nread;
+ conn->read_pos = nread;
}
- if(nread >= 0) {
- if(pipelining) {
- memcpy(buf, conn->master_buffer, nread);
- conn->buf_len = nread;
- conn->read_pos = nread;
- }
- *n += nread;
- }
+ *n += nread;
return CURLE_OK;
}
/* return 0 on success */
-static int showit(struct SessionHandle *data, curl_infotype type,
+static int showit(struct Curl_easy *data, curl_infotype type,
char *ptr, size_t size)
{
static const char s_infotype[CURLINFO_END][3] = {
"* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
+ int rc = 0;
#ifdef CURL_DOES_CONVERSIONS
- char buf[BUFSIZE+1];
+ char *buf = NULL;
size_t conv_size = 0;
switch(type) {
case CURLINFO_HEADER_OUT:
- /* assume output headers are ASCII */
- /* copy the data into my buffer so the original is unchanged */
- if(size > BUFSIZE) {
- size = BUFSIZE; /* truncate if necessary */
- buf[BUFSIZE] = '\0';
- }
+ buf = Curl_memdup(ptr, size);
+ if(!buf)
+ return 1;
conv_size = size;
- memcpy(buf, ptr, size);
+
/* Special processing is needed for this block if it
* contains both headers and data (separated by CRLFCRLF).
* We want to convert just the headers, leaving the data as-is.
size_t i;
for(i = 0; i < size-4; i++) {
if(memcmp(&buf[i], "\x0d\x0a\x0d\x0a", 4) == 0) {
- /* convert everthing through this CRLFCRLF but no further */
+ /* convert everything through this CRLFCRLF but no further */
conv_size = i + 4;
break;
}
}
#endif /* CURL_DOES_CONVERSIONS */
- if(data->set.fdebug)
- return (*data->set.fdebug)(data, type, ptr, size,
- data->set.debugdata);
-
- switch(type) {
- case CURLINFO_TEXT:
- case CURLINFO_HEADER_OUT:
- case CURLINFO_HEADER_IN:
- fwrite(s_infotype[type], 2, 1, data->set.err);
- fwrite(ptr, size, 1, data->set.err);
+ if(data->set.fdebug) {
+ Curl_set_in_callback(data, true);
+ rc = (*data->set.fdebug)(data, type, ptr, size, data->set.debugdata);
+ Curl_set_in_callback(data, false);
+ }
+ else {
+ switch(type) {
+ case CURLINFO_TEXT:
+ case CURLINFO_HEADER_OUT:
+ case CURLINFO_HEADER_IN:
+ fwrite(s_infotype[type], 2, 1, data->set.err);
+ fwrite(ptr, size, 1, data->set.err);
#ifdef CURL_DOES_CONVERSIONS
- if(size != conv_size) {
- /* we had untranslated data so we need an explicit newline */
- fwrite("\n", 1, 1, data->set.err);
- }
+ if(size != conv_size) {
+ /* we had untranslated data so we need an explicit newline */
+ fwrite("\n", 1, 1, data->set.err);
+ }
#endif
- break;
- default: /* nada */
- break;
+ break;
+ default: /* nada */
+ break;
+ }
}
- return 0;
+#ifdef CURL_DOES_CONVERSIONS
+ free(buf);
+#endif
+ return rc;
}
-int Curl_debug(struct SessionHandle *data, curl_infotype type,
+int Curl_debug(struct Curl_easy *data, curl_infotype type,
char *ptr, size_t size,
struct connectdata *conn)
{
int rc;
if(data->set.printhost && conn && conn->host.dispname) {
char buffer[160];
- const char *t=NULL;
- const char *w="Data";
- switch (type) {
+ const char *t = NULL;
+ const char *w = "Data";
+ switch(type) {
case CURLINFO_HEADER_IN:
w = "Header";
+ /* FALLTHROUGH */
case CURLINFO_DATA_IN:
t = "from";
break;
case CURLINFO_HEADER_OUT:
w = "Header";
+ /* FALLTHROUGH */
case CURLINFO_DATA_OUT:
t = "to";
break;
projects / platform / upstream / curl.git / blobdiff