* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2013, 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
#include <sys/param.h>
#endif
-#include "strequal.h"
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
-#include "sslgen.h"
+#include "vtls/vtls.h"
#include "url.h"
#include "getinfo.h"
#include "hostip.h"
#include "share.h"
#include "strdup.h"
-#include "curl_memory.h"
#include "progress.h"
#include "easyif.h"
+#include "multiif.h"
#include "select.h"
#include "sendf.h" /* for failf function prototype */
-#include "curl_ntlm.h"
#include "connect.h" /* for Curl_getconnectinfo */
#include "slist.h"
+#include "mime.h"
#include "amigaos.h"
-#include "curl_rand.h"
#include "non-ascii.h"
#include "warnless.h"
-#include "conncache.h"
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-/* The last #include file should be: */
+#include "multiif.h"
+#include "sigpipe.h"
+#include "ssh.h"
+#include "setopt.h"
+#include "http_digest.h"
+
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
+#include "curl_memory.h"
#include "memdebug.h"
+#ifdef USE_TIZEN_FEATURE_DLP
+#include "extensions/curl_extensions.h"
+#endif
+
+void Curl_version_init(void);
/* win32_cleanup() is for win32 socket cleanup functionality, the opposite
of win32_init() */
/* wVersionRequested in wVersion. wHighVersion contains the */
/* highest supported version. */
- if(LOBYTE( wsaData.wVersion ) != LOBYTE(wVersionRequested) ||
- HIBYTE( wsaData.wVersion ) != HIBYTE(wVersionRequested) ) {
+ if(LOBYTE(wsaData.wVersion) != LOBYTE(wVersionRequested) ||
+ HIBYTE(wsaData.wVersion) != HIBYTE(wVersionRequested) ) {
/* Tell the user that we couldn't find a useable */
/* winsock.dll. */
#ifdef USE_WINDOWS_SSPI
{
- CURLcode err = Curl_sspi_global_init();
- if(err != CURLE_OK)
- return err;
+ CURLcode result = Curl_sspi_global_init();
+ if(result)
+ return result;
}
#endif
return CURLE_OK;
}
-#ifdef USE_LIBIDN
-/*
- * Initialise use of IDNA library.
- * It falls back to ASCII if $CHARSET isn't defined. This doesn't work for
- * idna_to_ascii_lz().
- */
-static void idna_init (void)
-{
-#ifdef WIN32
- char buf[60];
- UINT cp = GetACP();
-
- if(!getenv("CHARSET") && cp > 0) {
- snprintf(buf, sizeof(buf), "CHARSET=cp%u", cp);
- putenv(buf);
- }
-#else
- /* to do? */
-#endif
-}
-#endif /* USE_LIBIDN */
-
/* true globals -- for curl_global_init() and curl_global_cleanup() */
static unsigned int initialized;
static long init_flags;
curl_realloc_callback Curl_crealloc = (curl_realloc_callback)realloc;
curl_strdup_callback Curl_cstrdup = (curl_strdup_callback)system_strdup;
curl_calloc_callback Curl_ccalloc = (curl_calloc_callback)calloc;
-#ifdef WIN32
-curl_wcsdup_callback Curl_cwcsdup = (curl_wcsdup_callback)wcsdup;
+#if defined(WIN32) && defined(UNICODE)
+curl_wcsdup_callback Curl_cwcsdup = (curl_wcsdup_callback)_wcsdup;
#endif
#else
/*
- * Symbian OS doesn't support initialization to code in writeable static data.
+ * Symbian OS doesn't support initialization to code in writable static data.
* Initialization will occur in the curl_global_init() call.
*/
curl_malloc_callback Curl_cmalloc;
#endif
/**
- * curl_global_init() globally initializes cURL given a bitwise set of the
+ * curl_global_init() globally initializes curl given a bitwise set of the
* different features of what to initialize.
*/
-CURLcode curl_global_init(long flags)
+static CURLcode global_init(long flags, bool memoryfuncs)
{
if(initialized++)
return CURLE_OK;
- /* Setup the default memory functions here (again) */
- Curl_cmalloc = (curl_malloc_callback)malloc;
- Curl_cfree = (curl_free_callback)free;
- Curl_crealloc = (curl_realloc_callback)realloc;
- Curl_cstrdup = (curl_strdup_callback)system_strdup;
- Curl_ccalloc = (curl_calloc_callback)calloc;
-#ifdef WIN32
- Curl_cwcsdup = (curl_wcsdup_callback)wcsdup;
+#ifdef USE_TIZEN_FEATURE_DLP
+ /**
+ * Initialize Tizen DLP
+ */
+ curl_extensions_tizen_dlp_init();
#endif
- if(flags & CURL_GLOBAL_SSL)
- if(!Curl_ssl_init()) {
- DEBUGF(fprintf(stderr, "Error: Curl_ssl_init failed\n"));
- return CURLE_FAILED_INIT;
- }
+ if(memoryfuncs) {
+ /* Setup the default memory functions here (again) */
+ Curl_cmalloc = (curl_malloc_callback)malloc;
+ Curl_cfree = (curl_free_callback)free;
+ Curl_crealloc = (curl_realloc_callback)realloc;
+ Curl_cstrdup = (curl_strdup_callback)system_strdup;
+ Curl_ccalloc = (curl_calloc_callback)calloc;
+#if defined(WIN32) && defined(UNICODE)
+ Curl_cwcsdup = (curl_wcsdup_callback)_wcsdup;
+#endif
+ }
+
+ if(!Curl_ssl_init()) {
+ DEBUGF(fprintf(stderr, "Error: Curl_ssl_init failed\n"));
+ return CURLE_FAILED_INIT;
+ }
if(flags & CURL_GLOBAL_WIN32)
- if(win32_init() != CURLE_OK) {
+ if(win32_init()) {
DEBUGF(fprintf(stderr, "Error: win32_init failed\n"));
return CURLE_FAILED_INIT;
}
}
#endif
-#ifdef USE_LIBIDN
- idna_init();
-#endif
-
- if(Curl_resolver_global_init() != CURLE_OK) {
+ if(Curl_resolver_global_init()) {
DEBUGF(fprintf(stderr, "Error: resolver_global_init failed\n"));
return CURLE_FAILED_INIT;
}
+ (void)Curl_ipv6works();
+
#if defined(USE_LIBSSH2) && defined(HAVE_LIBSSH2_INIT)
if(libssh2_init(0)) {
DEBUGF(fprintf(stderr, "Error: libssh2_init failed\n"));
}
#endif
- Curl_ack_eintr = flags & CURL_GLOBAL_ACK_EINTR;
+#if defined(USE_LIBSSH)
+ if(ssh_init()) {
+ DEBUGF(fprintf(stderr, "Error: libssh_init failed\n"));
+ return CURLE_FAILED_INIT;
+ }
+#endif
- init_flags = flags;
+ if(flags & CURL_GLOBAL_ACK_EINTR)
+ Curl_ack_eintr = 1;
- /* Preset pseudo-random number sequence. */
+ init_flags = flags;
- Curl_srand();
+ Curl_version_init();
return CURLE_OK;
}
+
+/**
+ * curl_global_init() globally initializes curl given a bitwise set of the
+ * different features of what to initialize.
+ */
+CURLcode curl_global_init(long flags)
+{
+ return global_init(flags, TRUE);
+}
+
/*
- * curl_global_init_mem() globally initializes cURL and also registers the
+ * curl_global_init_mem() globally initializes curl and also registers the
* user provided callback routines.
*/
CURLcode curl_global_init_mem(long flags, curl_malloc_callback m,
curl_free_callback f, curl_realloc_callback r,
curl_strdup_callback s, curl_calloc_callback c)
{
- CURLcode code = CURLE_OK;
-
/* Invalid input, return immediately */
if(!m || !f || !r || !s || !c)
return CURLE_FAILED_INIT;
- /* Already initialized, don't do it again */
- if(initialized)
+ if(initialized) {
+ /* Already initialized, don't do it again, but bump the variable anyway to
+ work like curl_global_init() and require the same amount of cleanup
+ calls. */
+ initialized++;
return CURLE_OK;
-
- /* Call the actual init function first */
- code = curl_global_init(flags);
- if(code == CURLE_OK) {
- Curl_cmalloc = m;
- Curl_cfree = f;
- Curl_cstrdup = s;
- Curl_crealloc = r;
- Curl_ccalloc = c;
}
- return code;
+ /* set memory functions before global_init() in case it wants memory
+ functions */
+ Curl_cmalloc = m;
+ Curl_cfree = f;
+ Curl_cstrdup = s;
+ Curl_crealloc = r;
+ Curl_ccalloc = c;
+
+ /* Call the actual init function, but without setting */
+ return global_init(flags, FALSE);
}
/**
- * curl_global_cleanup() globally cleanups cURL, uses the value of
+ * curl_global_cleanup() globally cleanups curl, uses the value of
* "init_flags" to determine what needs to be cleaned up and what doesn't.
*/
void curl_global_cleanup(void)
return;
Curl_global_host_cache_dtor();
-
- if(init_flags & CURL_GLOBAL_SSL)
- Curl_ssl_cleanup();
-
+ Curl_ssl_cleanup();
Curl_resolver_global_cleanup();
if(init_flags & CURL_GLOBAL_WIN32)
(void)libssh2_exit();
#endif
+#if defined(USE_LIBSSH)
+ (void)ssh_finalize();
+#endif
+
init_flags = 0;
}
* curl_easy_init() is the external interface to alloc, setup and init an
* easy handle that is returned. If anything goes wrong, NULL is returned.
*/
-CURL *curl_easy_init(void)
+struct Curl_easy *curl_easy_init(void)
{
- CURLcode res;
- struct SessionHandle *data;
+ CURLcode result;
+ struct Curl_easy *data;
/* Make sure we inited the global SSL stuff */
if(!initialized) {
- res = curl_global_init(CURL_GLOBAL_DEFAULT);
- if(res) {
+ result = curl_global_init(CURL_GLOBAL_DEFAULT);
+ if(result) {
/* something in the global init failed, return nothing */
DEBUGF(fprintf(stderr, "Error: curl_global_init failed\n"));
return NULL;
}
/* We use curl_open() with undefined URL so far */
- res = Curl_open(&data);
- if(res != CURLE_OK) {
+ result = Curl_open(&data);
+ if(result) {
DEBUGF(fprintf(stderr, "Error: Curl_open failed\n"));
return NULL;
}
return data;
}
+#ifdef CURLDEBUG
+
+struct socketmonitor {
+ struct socketmonitor *next; /* the next node in the list or NULL */
+ struct pollfd socket; /* socket info of what to monitor */
+};
+
+struct events {
+ long ms; /* timeout, run the timeout function when reached */
+ bool msbump; /* set TRUE when timeout is set by callback */
+ int num_sockets; /* number of nodes in the monitor list */
+ struct socketmonitor *list; /* list of sockets to monitor */
+ int running_handles; /* store the returned number */
+};
+
+/* events_timer
+ *
+ * Callback that gets called with a new value when the timeout should be
+ * updated.
+ */
+
+static int events_timer(struct Curl_multi *multi, /* multi handle */
+ long timeout_ms, /* see above */
+ void *userp) /* private callback pointer */
+{
+ struct events *ev = userp;
+ (void)multi;
+ if(timeout_ms == -1)
+ /* timeout removed */
+ timeout_ms = 0;
+ else if(timeout_ms == 0)
+ /* timeout is already reached! */
+ timeout_ms = 1; /* trigger asap */
+
+ ev->ms = timeout_ms;
+ ev->msbump = TRUE;
+ return 0;
+}
+
+
+/* poll2cselect
+ *
+ * convert from poll() bit definitions to libcurl's CURL_CSELECT_* ones
+ */
+static int poll2cselect(int pollmask)
+{
+ int omask = 0;
+ if(pollmask & POLLIN)
+ omask |= CURL_CSELECT_IN;
+ if(pollmask & POLLOUT)
+ omask |= CURL_CSELECT_OUT;
+ if(pollmask & POLLERR)
+ omask |= CURL_CSELECT_ERR;
+ return omask;
+}
+
+
+/* socketcb2poll
+ *
+ * convert from libcurl' CURL_POLL_* bit definitions to poll()'s
+ */
+static short socketcb2poll(int pollmask)
+{
+ short omask = 0;
+ if(pollmask & CURL_POLL_IN)
+ omask |= POLLIN;
+ if(pollmask & CURL_POLL_OUT)
+ omask |= POLLOUT;
+ return omask;
+}
+
+/* events_socket
+ *
+ * Callback that gets called with information about socket activity to
+ * monitor.
+ */
+static int events_socket(struct Curl_easy *easy, /* easy handle */
+ curl_socket_t s, /* socket */
+ int what, /* see above */
+ void *userp, /* private callback
+ pointer */
+ void *socketp) /* private socket
+ pointer */
+{
+ struct events *ev = userp;
+ struct socketmonitor *m;
+ struct socketmonitor *prev = NULL;
+
+#if defined(CURL_DISABLE_VERBOSE_STRINGS)
+ (void) easy;
+#endif
+ (void)socketp;
+
+ m = ev->list;
+ while(m) {
+ if(m->socket.fd == s) {
+
+ if(what == CURL_POLL_REMOVE) {
+ struct socketmonitor *nxt = m->next;
+ /* remove this node from the list of monitored sockets */
+ if(prev)
+ prev->next = nxt;
+ else
+ ev->list = nxt;
+ free(m);
+ m = nxt;
+ infof(easy, "socket cb: socket %d REMOVED\n", s);
+ }
+ else {
+ /* The socket 's' is already being monitored, update the activity
+ mask. Convert from libcurl bitmask to the poll one. */
+ m->socket.events = socketcb2poll(what);
+ infof(easy, "socket cb: socket %d UPDATED as %s%s\n", s,
+ what&CURL_POLL_IN?"IN":"",
+ what&CURL_POLL_OUT?"OUT":"");
+ }
+ break;
+ }
+ prev = m;
+ m = m->next; /* move to next node */
+ }
+ if(!m) {
+ if(what == CURL_POLL_REMOVE) {
+ /* this happens a bit too often, libcurl fix perhaps? */
+ /* fprintf(stderr,
+ "%s: socket %d asked to be REMOVED but not present!\n",
+ __func__, s); */
+ }
+ else {
+ m = malloc(sizeof(struct socketmonitor));
+ if(m) {
+ m->next = ev->list;
+ m->socket.fd = s;
+ m->socket.events = socketcb2poll(what);
+ m->socket.revents = 0;
+ ev->list = m;
+ infof(easy, "socket cb: socket %d ADDED as %s%s\n", s,
+ what&CURL_POLL_IN?"IN":"",
+ what&CURL_POLL_OUT?"OUT":"");
+ }
+ else
+ return CURLE_OUT_OF_MEMORY;
+ }
+ }
+
+ return 0;
+}
+
+
/*
- * curl_easy_setopt() is the external interface for setting options on an
- * easy handle.
+ * events_setup()
+ *
+ * Do the multi handle setups that only event-based transfers need.
*/
+static void events_setup(struct Curl_multi *multi, struct events *ev)
+{
+ /* timer callback */
+ curl_multi_setopt(multi, CURLMOPT_TIMERFUNCTION, events_timer);
+ curl_multi_setopt(multi, CURLMOPT_TIMERDATA, ev);
+
+ /* socket callback */
+ curl_multi_setopt(multi, CURLMOPT_SOCKETFUNCTION, events_socket);
+ curl_multi_setopt(multi, CURLMOPT_SOCKETDATA, ev);
+}
-#undef curl_easy_setopt
-CURLcode curl_easy_setopt(CURL *curl, CURLoption tag, ...)
+
+/* wait_or_timeout()
+ *
+ * waits for activity on any of the given sockets, or the timeout to trigger.
+ */
+
+static CURLcode wait_or_timeout(struct Curl_multi *multi, struct events *ev)
{
- va_list arg;
- struct SessionHandle *data = curl;
- CURLcode ret;
+ bool done = FALSE;
+ CURLMcode mcode = CURLM_OK;
+ CURLcode result = CURLE_OK;
- if(!curl)
- return CURLE_BAD_FUNCTION_ARGUMENT;
+ while(!done) {
+ CURLMsg *msg;
+ struct socketmonitor *m;
+ struct pollfd *f;
+ struct pollfd fds[4];
+ int numfds = 0;
+ int pollrc;
+ int i;
+ struct curltime before;
+ struct curltime after;
+
+ /* populate the fds[] array */
+ for(m = ev->list, f = &fds[0]; m; m = m->next) {
+ f->fd = m->socket.fd;
+ f->events = m->socket.events;
+ f->revents = 0;
+ /* fprintf(stderr, "poll() %d check socket %d\n", numfds, f->fd); */
+ f++;
+ numfds++;
+ }
- va_start(arg, tag);
+ /* get the time stamp to use to figure out how long poll takes */
+ before = Curl_now();
- ret = Curl_setopt(data, tag, arg);
+ /* wait for activity or timeout */
+ pollrc = Curl_poll(fds, numfds, (int)ev->ms);
- va_end(arg);
- return ret;
+ after = Curl_now();
+
+ ev->msbump = FALSE; /* reset here */
+
+ if(0 == pollrc) {
+ /* timeout! */
+ ev->ms = 0;
+ /* fprintf(stderr, "call curl_multi_socket_action(TIMEOUT)\n"); */
+ mcode = curl_multi_socket_action(multi, CURL_SOCKET_TIMEOUT, 0,
+ &ev->running_handles);
+ }
+ else if(pollrc > 0) {
+ /* loop over the monitored sockets to see which ones had activity */
+ for(i = 0; i< numfds; i++) {
+ if(fds[i].revents) {
+ /* socket activity, tell libcurl */
+ int act = poll2cselect(fds[i].revents); /* convert */
+ infof(multi->easyp, "call curl_multi_socket_action(socket %d)\n",
+ fds[i].fd);
+ mcode = curl_multi_socket_action(multi, fds[i].fd, act,
+ &ev->running_handles);
+ }
+ }
+
+ if(!ev->msbump) {
+ /* If nothing updated the timeout, we decrease it by the spent time.
+ * If it was updated, it has the new timeout time stored already.
+ */
+ timediff_t timediff = Curl_timediff(after, before);
+ if(timediff > 0) {
+ if(timediff > ev->ms)
+ ev->ms = 0;
+ else
+ ev->ms -= (long)timediff;
+ }
+ }
+ }
+ else
+ return CURLE_RECV_ERROR;
+
+ if(mcode)
+ return CURLE_URL_MALFORMAT; /* TODO: return a proper error! */
+
+ /* we don't really care about the "msgs_in_queue" value returned in the
+ second argument */
+ msg = curl_multi_info_read(multi, &pollrc);
+ if(msg) {
+ result = msg->data.result;
+ done = TRUE;
+ }
+ }
+
+ return result;
}
+
+/* easy_events()
+ *
+ * Runs a transfer in a blocking manner using the events-based API
+ */
+static CURLcode easy_events(struct Curl_multi *multi)
+{
+ /* this struct is made static to allow it to be used after this function
+ returns and curl_multi_remove_handle() is called */
+ static struct events evs = {2, FALSE, 0, NULL, 0};
+
+ /* if running event-based, do some further multi inits */
+ events_setup(multi, &evs);
+
+ return wait_or_timeout(multi, &evs);
+}
+#else /* CURLDEBUG */
+/* when not built with debug, this function doesn't exist */
+#define easy_events(x) CURLE_NOT_BUILT_IN
+#endif
+
+static CURLcode easy_transfer(struct Curl_multi *multi)
+{
+ bool done = FALSE;
+ CURLMcode mcode = CURLM_OK;
+ CURLcode result = CURLE_OK;
+ struct curltime before;
+ int without_fds = 0; /* count number of consecutive returns from
+ curl_multi_wait() without any filedescriptors */
+
+ while(!done && !mcode) {
+ int still_running = 0;
+ int rc;
+
+ before = Curl_now();
+ mcode = curl_multi_wait(multi, NULL, 0, 1000, &rc);
+
+ if(!mcode) {
+ if(!rc) {
+ struct curltime after = Curl_now();
+
+ /* If it returns without any filedescriptor instantly, we need to
+ avoid busy-looping during periods where it has nothing particular
+ to wait for */
+ if(Curl_timediff(after, before) <= 10) {
+ without_fds++;
+ if(without_fds > 2) {
+ int sleep_ms = without_fds < 10 ? (1 << (without_fds - 1)) : 1000;
+ Curl_wait_ms(sleep_ms);
+ }
+ }
+ else
+ /* it wasn't "instant", restart counter */
+ without_fds = 0;
+ }
+ else
+ /* got file descriptor, restart counter */
+ without_fds = 0;
+
+ mcode = curl_multi_perform(multi, &still_running);
+ }
+
+ /* only read 'still_running' if curl_multi_perform() return OK */
+ if(!mcode && !still_running) {
+ CURLMsg *msg = curl_multi_info_read(multi, &rc);
+ if(msg) {
+ result = msg->data.result;
+ done = TRUE;
+ }
+ }
+ }
+
+ /* Make sure to return some kind of error if there was a multi problem */
+ if(mcode) {
+ result = (mcode == CURLM_OUT_OF_MEMORY) ? CURLE_OUT_OF_MEMORY :
+ /* The other multi errors should never happen, so return
+ something suitably generic */
+ CURLE_BAD_FUNCTION_ARGUMENT;
+ }
+
+ return result;
+}
+
+
/*
- * curl_easy_perform() is the external interface that performs a blocking
+ * easy_perform() is the external interface that performs a blocking
* transfer as previously setup.
*
* CONCEPT: This function creates a multi handle, adds the easy handle to it,
* needs to keep it around since if this easy handle is used again by this
* function, the same multi handle must be re-used so that the same pools and
* caches can be used.
+ *
+ * DEBUG: if 'events' is set TRUE, this function will use a replacement engine
+ * instead of curl_multi_perform() and use curl_multi_socket_action().
*/
-CURLcode curl_easy_perform(CURL *easy)
+static CURLcode easy_perform(struct Curl_easy *data, bool events)
{
- CURLM *multi;
+ struct Curl_multi *multi;
CURLMcode mcode;
- CURLcode code = CURLE_OK;
- CURLMsg *msg;
- bool done = FALSE;
- int rc;
- struct SessionHandle *data = easy;
+ CURLcode result = CURLE_OK;
+ SIGPIPE_VARIABLE(pipe_st);
- if(!easy)
+ if(!data)
return CURLE_BAD_FUNCTION_ARGUMENT;
if(data->multi) {
- failf(data, "easy handled already used in multi handle");
+ failf(data, "easy handle already used in multi handle");
return CURLE_FAILED_INIT;
}
if(data->multi_easy)
multi = data->multi_easy;
else {
- multi = curl_multi_init();
+ /* this multi handle will only ever have a single easy handled attached
+ to it, so make it use minimal hashes */
+ multi = Curl_multi_handle(1, 3);
if(!multi)
return CURLE_OUT_OF_MEMORY;
data->multi_easy = multi;
}
- mcode = curl_multi_add_handle(multi, easy);
+ if(multi->in_callback)
+ return CURLE_RECURSIVE_API_CALL;
+
+ /* Copy the MAXCONNECTS option to the multi handle */
+ curl_multi_setopt(multi, CURLMOPT_MAXCONNECTS, data->set.maxconnects);
+
+ mcode = curl_multi_add_handle(multi, data);
if(mcode) {
curl_multi_cleanup(multi);
if(mcode == CURLM_OUT_OF_MEMORY)
return CURLE_OUT_OF_MEMORY;
- else
- return CURLE_FAILED_INIT;
+ return CURLE_FAILED_INIT;
}
+ sigpipe_ignore(data, &pipe_st);
+
/* assign this after curl_multi_add_handle() since that function checks for
it and rejects this handle otherwise */
data->multi = multi;
- while(!done && !mcode) {
- int still_running;
- int ret;
-
- mcode = curl_multi_wait(multi, NULL, 0, 1000, &ret);
-
- if(mcode == CURLM_OK) {
- if(ret == -1) {
- /* poll() failed not on EINTR, indicate a network problem */
- code = CURLE_RECV_ERROR;
- break;
- }
-
- mcode = curl_multi_perform(multi, &still_running);
- }
-
- /* only read 'still_running' if curl_multi_perform() return OK */
- if((mcode == CURLM_OK) && !still_running) {
- msg = curl_multi_info_read(multi, &rc);
- if(msg) {
- code = msg->data.result;
- done = TRUE;
- }
- }
- }
+ /* run the transfer */
+ result = events ? easy_events(multi) : easy_transfer(multi);
/* ignoring the return code isn't nice, but atm we can't really handle
a failure here, room for future improvement! */
- (void)curl_multi_remove_handle(multi, easy);
+ (void)curl_multi_remove_handle(multi, data);
+
+ sigpipe_restore(&pipe_st);
/* The multi handle is kept alive, owned by the easy handle */
- return code;
+ return result;
}
+
/*
- * curl_easy_cleanup() is the external interface to cleaning/freeing the given
- * easy handle.
+ * curl_easy_perform() is the external interface that performs a blocking
+ * transfer as previously setup.
*/
-void curl_easy_cleanup(CURL *curl)
+CURLcode curl_easy_perform(struct Curl_easy *data)
{
- struct SessionHandle *data = (struct SessionHandle *)curl;
-
- if(!data)
- return;
-
- Curl_close(data);
+ return easy_perform(data, FALSE);
}
+#ifdef CURLDEBUG
/*
- * Store a pointed to the multi handle within the easy handle's data struct.
+ * curl_easy_perform_ev() is the external interface that performs a blocking
+ * transfer using the event-based API internally.
*/
-void Curl_easy_addmulti(struct SessionHandle *data,
- void *multi)
+CURLcode curl_easy_perform_ev(struct Curl_easy *data)
{
- data->multi = multi;
+ return easy_perform(data, TRUE);
}
-void Curl_easy_initHandleData(struct SessionHandle *data)
+#endif
+
+/*
+ * curl_easy_cleanup() is the external interface to cleaning/freeing the given
+ * easy handle.
+ */
+void curl_easy_cleanup(struct Curl_easy *data)
{
- memset(&data->req, 0, sizeof(struct SingleRequest));
+ SIGPIPE_VARIABLE(pipe_st);
+
+ if(!data)
+ return;
- data->req.maxdownload = -1;
+ sigpipe_ignore(data, &pipe_st);
+ Curl_close(data);
+ sigpipe_restore(&pipe_st);
}
/*
* information from a performed transfer and similar.
*/
#undef curl_easy_getinfo
-CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ...)
+CURLcode curl_easy_getinfo(struct Curl_easy *data, CURLINFO info, ...)
{
va_list arg;
void *paramp;
- struct SessionHandle *data = (struct SessionHandle *)curl;
+ CURLcode result;
va_start(arg, info);
paramp = va_arg(arg, void *);
- return Curl_getinfo(data, info, paramp);
+ result = Curl_getinfo(data, info, paramp);
+
+ va_end(arg);
+ return result;
+}
+
+static CURLcode dupset(struct Curl_easy *dst, struct Curl_easy *src)
+{
+ CURLcode result = CURLE_OK;
+ enum dupstring i;
+
+ /* Copy src->set into dst->set first, then deal with the strings
+ afterwards */
+ dst->set = src->set;
+ Curl_mime_initpart(&dst->set.mimepost, dst);
+
+ /* clear all string pointers first */
+ memset(dst->set.str, 0, STRING_LAST * sizeof(char *));
+
+ /* duplicate all strings */
+ for(i = (enum dupstring)0; i< STRING_LASTZEROTERMINATED; i++) {
+ result = Curl_setstropt(&dst->set.str[i], src->set.str[i]);
+ if(result)
+ return result;
+ }
+
+ /* duplicate memory areas pointed to */
+ i = STRING_COPYPOSTFIELDS;
+ if(src->set.postfieldsize && src->set.str[i]) {
+ /* postfieldsize is curl_off_t, Curl_memdup() takes a size_t ... */
+ dst->set.str[i] = Curl_memdup(src->set.str[i],
+ curlx_sotouz(src->set.postfieldsize));
+ if(!dst->set.str[i])
+ return CURLE_OUT_OF_MEMORY;
+ /* point to the new copy */
+ dst->set.postfields = dst->set.str[i];
+ }
+
+ /* Duplicate mime data. */
+ result = Curl_mime_duppart(&dst->set.mimepost, &src->set.mimepost);
+
+ return result;
}
/*
* given input easy handle. The returned handle will be a new working handle
* with all options set exactly as the input source handle.
*/
-CURL *curl_easy_duphandle(CURL *incurl)
+struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
{
- struct SessionHandle *data=(struct SessionHandle *)incurl;
-
- struct SessionHandle *outcurl = calloc(1, sizeof(struct SessionHandle));
+ struct Curl_easy *outcurl = calloc(1, sizeof(struct Curl_easy));
if(NULL == outcurl)
goto fail;
* get setup on-demand in the code, as that would probably decrease
* the likeliness of us forgetting to init a buffer here in the future.
*/
+ outcurl->set.buffer_size = data->set.buffer_size;
+ outcurl->state.buffer = malloc(outcurl->set.buffer_size + 1);
+ if(!outcurl->state.buffer)
+ goto fail;
+
outcurl->state.headerbuff = malloc(HEADERSIZE);
if(!outcurl->state.headerbuff)
goto fail;
outcurl->state.headersize = HEADERSIZE;
/* copy all userdefined values */
- if(Curl_dupset(outcurl, data) != CURLE_OK)
+ if(dupset(outcurl, data))
goto fail;
/* the connection cache is setup on demand */
/* Clone the resolver handle, if present, for the new handle */
if(Curl_resolver_duphandle(&outcurl->state.resolver,
- data->state.resolver) != CURLE_OK)
+ data->state.resolver))
goto fail;
Curl_convert_setup(outcurl);
- Curl_easy_initHandleData(outcurl);
+ Curl_initinfo(outcurl);
outcurl->magic = CURLEASY_MAGIC_NUMBER;
if(outcurl) {
curl_slist_free_all(outcurl->change.cookielist);
outcurl->change.cookielist = NULL;
+ Curl_safefree(outcurl->state.buffer);
Curl_safefree(outcurl->state.headerbuff);
Curl_safefree(outcurl->change.url);
Curl_safefree(outcurl->change.referer);
* curl_easy_reset() is an external interface that allows an app to re-
* initialize a session handle to the default values.
*/
-void curl_easy_reset(CURL *curl)
+void curl_easy_reset(struct Curl_easy *data)
{
- struct SessionHandle *data = (struct SessionHandle *)curl;
-
Curl_safefree(data->state.pathbuffer);
data->state.path = NULL;
- Curl_safefree(data->state.proto.generic);
+ Curl_free_request_state(data);
/* zero out UserDefined data: */
Curl_freeset(data);
memset(&data->set, 0, sizeof(struct UserDefined));
- (void)Curl_init_userdefined(&data->set);
+ (void)Curl_init_userdefined(data);
/* zero out Progress data: */
memset(&data->progress, 0, sizeof(struct Progress));
- /* init Handle data */
- Curl_easy_initHandleData(data);
+ /* zero out PureInfo data: */
+ Curl_initinfo(data);
data->progress.flags |= PGRS_HIDE;
data->state.current_speed = -1; /* init to negative == impossible */
+
+ /* zero out authentication data: */
+ memset(&data->state.authhost, 0, sizeof(struct auth));
+ memset(&data->state.authproxy, 0, sizeof(struct auth));
+ Curl_digest_cleanup(data);
}
/*
* the pausing, you may get your write callback called at this point.
*
* Action is a bitmask consisting of CURLPAUSE_* bits in curl/curl.h
+ *
+ * NOTE: This is one of few API functions that are allowed to be called from
+ * within a callback.
*/
-CURLcode curl_easy_pause(CURL *curl, int action)
+CURLcode curl_easy_pause(struct Curl_easy *data, int action)
{
- struct SessionHandle *data = (struct SessionHandle *)curl;
struct SingleRequest *k = &data->req;
CURLcode result = CURLE_OK;
/* put it back in the keepon */
k->keepon = newstate;
- if(!(newstate & KEEP_RECV_PAUSE) && data->state.tempwrite) {
- /* we have a buffer for sending that we now seem to be able to deliver
- since the receive pausing is lifted! */
-
- /* get the pointer, type and length in local copies since the function may
- return PAUSE again and then we'll get a new copy allocted and stored in
- the tempwrite variables */
- char *tempwrite = data->state.tempwrite;
- char *freewrite = tempwrite; /* store this pointer to free it later */
- size_t tempsize = data->state.tempwritesize;
- int temptype = data->state.tempwritetype;
- size_t chunklen;
-
- /* clear tempwrite here just to make sure it gets cleared if there's no
- further use of it, and make sure we don't clear it after the function
- invoke as it may have been set to a new value by then */
- data->state.tempwrite = NULL;
-
- /* since the write callback API is define to never exceed
- CURL_MAX_WRITE_SIZE bytes in a single call, and since we may in fact
- have more data than that in our buffer here, we must loop sending the
- data in multiple calls until there's no data left or we get another
- pause returned.
-
- A tricky part is that the function we call will "buffer" the data
- itself when it pauses on a particular buffer, so we may need to do some
- extra trickery if we get a pause return here.
- */
- do {
- chunklen = (tempsize > CURL_MAX_WRITE_SIZE)?CURL_MAX_WRITE_SIZE:tempsize;
-
- result = Curl_client_write(data->state.current_conn,
- temptype, tempwrite, chunklen);
- if(result)
- /* failures abort the loop at once */
- break;
-
- if(data->state.tempwrite && (tempsize - chunklen)) {
- /* Ouch, the reading is again paused and the block we send is now
- "cached". If this is the final chunk we can leave it like this, but
- if we have more chunks that are cached after this, we need to free
- the newly cached one and put back a version that is truly the entire
- contents that is saved for later
- */
- char *newptr;
-
- /* note that tempsize is still the size as before the callback was
- used, and thus the whole piece of data to keep */
- newptr = realloc(data->state.tempwrite, tempsize);
-
- if(!newptr) {
- free(data->state.tempwrite); /* free old area */
- data->state.tempwrite = NULL;
- result = CURLE_OUT_OF_MEMORY;
- /* tempwrite will be freed further down */
- break;
- }
- data->state.tempwrite = newptr; /* store new pointer */
- memcpy(newptr, tempwrite, tempsize);
- data->state.tempwritesize = tempsize; /* store new size */
- /* tempwrite will be freed further down */
- break; /* go back to pausing until further notice */
- }
- else {
- tempsize -= chunklen; /* left after the call above */
- tempwrite += chunklen; /* advance the pointer */
- }
+ if(!(newstate & KEEP_RECV_PAUSE) && data->state.tempcount) {
+ /* there are buffers for sending that can be delivered as the receive
+ pausing is lifted! */
+ unsigned int i;
+ unsigned int count = data->state.tempcount;
+ struct tempbuf writebuf[3]; /* there can only be three */
+ struct connectdata *conn = data->easy_conn;
+ struct Curl_easy *saved_data = NULL;
+
+ /* copy the structs to allow for immediate re-pausing */
+ for(i = 0; i < data->state.tempcount; i++) {
+ writebuf[i] = data->state.tempwrite[i];
+ data->state.tempwrite[i].buf = NULL;
+ }
+ data->state.tempcount = 0;
+
+ /* set the connection's current owner */
+ if(conn->data != data) {
+ saved_data = conn->data;
+ conn->data = data;
+ }
+
+ for(i = 0; i < count; i++) {
+ /* even if one function returns error, this loops through and frees all
+ buffers */
+ if(!result)
+ result = Curl_client_write(conn, writebuf[i].type, writebuf[i].buf,
+ writebuf[i].len);
+ free(writebuf[i].buf);
+ }
- } while((result == CURLE_OK) && tempsize);
+ /* recover previous owner of the connection */
+ if(saved_data)
+ conn->data = saved_data;
- free(freewrite); /* this is unconditionally no longer used */
+ if(result)
+ return result;
}
+ /* if there's no error and we're not pausing both directions, we want
+ to have this handle checked soon */
+ if(!result &&
+ ((newstate&(KEEP_RECV_PAUSE|KEEP_SEND_PAUSE)) !=
+ (KEEP_RECV_PAUSE|KEEP_SEND_PAUSE)) )
+ Curl_expire(data, 0, EXPIRE_RUN_NOW); /* get this handle going again */
+
return result;
}
-static CURLcode easy_connection(struct SessionHandle *data,
+static CURLcode easy_connection(struct Curl_easy *data,
curl_socket_t *sfd,
struct connectdata **connp)
{
* curl_easy_perform() with CURLOPT_CONNECT_ONLY option.
* Returns CURLE_OK on success, error code on error.
*/
-CURLcode curl_easy_recv(CURL *curl, void *buffer, size_t buflen, size_t *n)
+CURLcode curl_easy_recv(struct Curl_easy *data, void *buffer, size_t buflen,
+ size_t *n)
{
curl_socket_t sfd;
- CURLcode ret;
+ CURLcode result;
ssize_t n1;
struct connectdata *c;
- struct SessionHandle *data = (struct SessionHandle *)curl;
- ret = easy_connection(data, &sfd, &c);
- if(ret)
- return ret;
+ if(Curl_is_in_callback(data))
+ return CURLE_RECURSIVE_API_CALL;
+
+ result = easy_connection(data, &sfd, &c);
+ if(result)
+ return result;
*n = 0;
- ret = Curl_read(c, sfd, buffer, buflen, &n1);
+ result = Curl_read(c, sfd, buffer, buflen, &n1);
- if(ret != CURLE_OK)
- return ret;
+ if(result)
+ return result;
*n = (size_t)n1;
* Sends data over the connected socket. Use after successful
* curl_easy_perform() with CURLOPT_CONNECT_ONLY option.
*/
-CURLcode curl_easy_send(CURL *curl, const void *buffer, size_t buflen,
- size_t *n)
+CURLcode curl_easy_send(struct Curl_easy *data, const void *buffer,
+ size_t buflen, size_t *n)
{
curl_socket_t sfd;
- CURLcode ret;
+ CURLcode result;
ssize_t n1;
struct connectdata *c = NULL;
- struct SessionHandle *data = (struct SessionHandle *)curl;
- ret = easy_connection(data, &sfd, &c);
- if(ret)
- return ret;
+ if(Curl_is_in_callback(data))
+ return CURLE_RECURSIVE_API_CALL;
+
+ result = easy_connection(data, &sfd, &c);
+ if(result)
+ return result;
*n = 0;
- ret = Curl_write(c, sfd, buffer, buflen, &n1);
+ result = Curl_write(c, sfd, buffer, buflen, &n1);
if(n1 == -1)
return CURLE_SEND_ERROR;
/* detect EAGAIN */
- if((CURLE_OK == ret) && (0 == n1))
+ if(!result && !n1)
return CURLE_AGAIN;
*n = (size_t)n1;
- return ret;
+ return result;
}
projects / platform / upstream / curl.git / blobdiff