* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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
#include "telnet.h"
#include "connect.h"
#include "progress.h"
-#include "curl_printf.h"
+#include "system_win32.h"
#define TELOPTS
#define TELCMDS
#include "arpa_telnet.h"
#include "select.h"
-#include "strequal.h"
-#include "rawstr.h"
+#include "strcase.h"
#include "warnless.h"
-/* The last #include files should be: */
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
} WHILE_FALSE
#define CURL_SB_ACCUM(x,c) \
do { \
- if(x->subpointer < (x->subbuffer+sizeof x->subbuffer)) \
+ if(x->subpointer < (x->subbuffer + sizeof x->subbuffer)) \
*x->subpointer++ = (c); \
} WHILE_FALSE
#define CURL_SB_GET(x) ((*x->subpointer++)&0xff)
-#define CURL_SB_PEEK(x) ((*x->subpointer)&0xff)
-#define CURL_SB_EOF(x) (x->subpointer >= x->subend)
#define CURL_SB_LEN(x) (x->subend - x->subpointer)
+/* For posterity:
+#define CURL_SB_PEEK(x) ((*x->subpointer)&0xff)
+#define CURL_SB_EOF(x) (x->subpointer >= x->subend) */
+
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define printoption(a,b,c,d) Curl_nop_stmt
#endif
#ifdef USE_WINSOCK
typedef FARPROC WSOCK2_FUNC;
-static CURLcode check_wsock2 ( struct SessionHandle *data );
+static CURLcode check_wsock2(struct Curl_easy *data);
#endif
static
ssize_t count); /* Number of bytes received */
#ifndef CURL_DISABLE_VERBOSE_STRINGS
-static void printoption(struct SessionHandle *data,
+static void printoption(struct Curl_easy *data,
const char *direction,
int cmd, int option);
#endif
static void set_local_option(struct connectdata *, int cmd, int option);
static void set_remote_option(struct connectdata *, int cmd, int option);
-static void printsub(struct SessionHandle *data,
+static void printsub(struct Curl_easy *data,
int direction, unsigned char *pointer,
size_t length);
static void suboption(struct connectdata *);
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
+ ZERO_NULL, /* connection_check */
PORT_TELNET, /* defport */
CURLPROTO_TELNET, /* protocol */
PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */
#ifdef USE_WINSOCK
static CURLcode
-check_wsock2 ( struct SessionHandle *data )
+check_wsock2(struct Curl_easy *data)
{
int err;
WORD wVersionRequested;
int i;
struct TELNET *tn = (struct TELNET *) conn->data->req.protop;
- for(i = 0;i < CURL_NTELOPTS;i++) {
- if(i==CURL_TELOPT_ECHO)
+ for(i = 0; i < CURL_NTELOPTS; i++) {
+ if(i == CURL_TELOPT_ECHO)
continue;
if(tn->us_preferred[i] == CURL_YES)
}
#ifndef CURL_DISABLE_VERBOSE_STRINGS
-static void printoption(struct SessionHandle *data,
+static void printoption(struct Curl_easy *data,
const char *direction, int cmd, int option)
{
const char *fmt;
unsigned char buf[3];
ssize_t bytes_written;
int err;
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
buf[0] = CURL_IAC;
buf[1] = (unsigned char)cmd;
}
-static void printsub(struct SessionHandle *data,
+static void printsub(struct Curl_easy *data,
int direction, /* '<' or '>' */
unsigned char *pointer, /* where suboption data is */
size_t length) /* length of suboption data */
case CURL_TELOPT_NEW_ENVIRON:
if(pointer[1] == CURL_TELQUAL_IS) {
infof(data, " ");
- for(i = 3;i < length;i++) {
+ for(i = 3; i < length; i++) {
switch(pointer[i]) {
case CURL_NEW_ENV_VAR:
infof(data, ", ");
struct curl_slist *beg;
char option_keyword[128] = "";
char option_arg[256] = "";
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
struct TELNET *tn = (struct TELNET *)conn->data->req.protop;
CURLcode result = CURLE_OK;
int binary_option;
tn->us_preferred[CURL_TELOPT_NEW_ENVIRON] = CURL_YES;
}
- for(head = data->set.telnet_options; head; head=head->next) {
+ for(head = data->set.telnet_options; head; head = head->next) {
if(sscanf(head->data, "%127[^= ]%*[ =]%255s",
option_keyword, option_arg) == 2) {
/* Terminal type */
- if(Curl_raw_equal(option_keyword, "TTYPE")) {
+ if(strcasecompare(option_keyword, "TTYPE")) {
strncpy(tn->subopt_ttype, option_arg, 31);
tn->subopt_ttype[31] = 0; /* String termination */
tn->us_preferred[CURL_TELOPT_TTYPE] = CURL_YES;
}
/* Display variable */
- if(Curl_raw_equal(option_keyword, "XDISPLOC")) {
+ if(strcasecompare(option_keyword, "XDISPLOC")) {
strncpy(tn->subopt_xdisploc, option_arg, 127);
tn->subopt_xdisploc[127] = 0; /* String termination */
tn->us_preferred[CURL_TELOPT_XDISPLOC] = CURL_YES;
}
/* Environment variable */
- if(Curl_raw_equal(option_keyword, "NEW_ENV")) {
+ if(strcasecompare(option_keyword, "NEW_ENV")) {
beg = curl_slist_append(tn->telnet_vars, option_arg);
if(!beg) {
result = CURLE_OUT_OF_MEMORY;
continue;
}
- /* Window Size */
- if(Curl_raw_equal(option_keyword, "WS")) {
+ /* Window Size */
+ if(strcasecompare(option_keyword, "WS")) {
if(sscanf(option_arg, "%hu%*[xX]%hu",
&tn->subopt_wsx, &tn->subopt_wsy) == 2)
tn->us_preferred[CURL_TELOPT_NAWS] = CURL_YES;
}
/* To take care or not of the 8th bit in data exchange */
- if(Curl_raw_equal(option_keyword, "BINARY")) {
- binary_option=atoi(option_arg);
- if(binary_option!=1) {
+ if(strcasecompare(option_keyword, "BINARY")) {
+ binary_option = atoi(option_arg);
+ if(binary_option != 1) {
tn->us_preferred[CURL_TELOPT_BINARY] = CURL_NO;
tn->him_preferred[CURL_TELOPT_BINARY] = CURL_NO;
}
}
failf(data, "Unknown telnet option %s", head->data);
- result = CURLE_UNKNOWN_TELNET_OPTION;
- break;
- }
- else {
- failf(data, "Syntax error in telnet option: %s", head->data);
- result = CURLE_TELNET_OPTION_SYNTAX;
+ result = CURLE_UNKNOWN_OPTION;
break;
}
+ failf(data, "Syntax error in telnet option: %s", head->data);
+ result = CURLE_TELNET_OPTION_SYNTAX;
+ break;
}
if(result) {
int err;
char varname[128] = "";
char varval[128] = "";
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
struct TELNET *tn = (struct TELNET *)data->req.protop;
- printsub(data, '<', (unsigned char *)tn->subbuffer, CURL_SB_LEN(tn)+2);
- switch (CURL_SB_GET(tn)) {
+ printsub(data, '<', (unsigned char *)tn->subbuffer, CURL_SB_LEN(tn) + 2);
+ switch(CURL_SB_GET(tn)) {
case CURL_TELOPT_TTYPE:
len = strlen(tn->subopt_ttype) + 4 + 2;
snprintf((char *)temp, sizeof(temp),
CURL_TELQUAL_IS);
len = 4;
- for(v = tn->telnet_vars;v;v = v->next) {
+ for(v = tn->telnet_vars; v; v = v->next) {
tmplen = (strlen(v->data) + 1);
/* Add the variable only if it fits */
if(len + tmplen < (int)sizeof(temp)-6) {
ssize_t bytes_written;
int err;
unsigned short x, y;
- unsigned char*uc1, *uc2;
+ unsigned char *uc1, *uc2;
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
struct TELNET *tn = (struct TELNET *)data->req.protop;
- switch (option) {
+ switch(option) {
case CURL_TELOPT_NAWS:
/* We prepare data to be sent */
CURL_SB_CLEAR(tn);
CURL_SB_ACCUM(tn, CURL_IAC);
CURL_SB_ACCUM(tn, CURL_SB);
CURL_SB_ACCUM(tn, CURL_TELOPT_NAWS);
- /* We must deal either with litte or big endien processors */
+ /* We must deal either with litte or big endian processors */
/* Window size must be sent according to the 'network order' */
- x=htons(tn->subopt_wsx);
- y=htons(tn->subopt_wsy);
- uc1 = (unsigned char*)&x;
- uc2 = (unsigned char*)&y;
+ x = htons(tn->subopt_wsx);
+ y = htons(tn->subopt_wsy);
+ uc1 = (unsigned char *)&x;
+ uc2 = (unsigned char *)&y;
CURL_SB_ACCUM(tn, uc1[0]);
CURL_SB_ACCUM(tn, uc1[1]);
CURL_SB_ACCUM(tn, uc2[0]);
CURL_SB_TERM(tn);
/* data suboption is now ready */
- printsub(data, '>', (unsigned char *)tn->subbuffer+2,
+ printsub(data, '>', (unsigned char *)tn->subbuffer + 2,
CURL_SB_LEN(tn)-2);
/* we send the header of the suboption... */
}
/* ... then the window size with the send_telnet_data() function
to deal with 0xFF cases ... */
- send_telnet_data(conn, (char *)tn->subbuffer+3, 4);
+ send_telnet_data(conn, (char *)tn->subbuffer + 3, 4);
/* ... and the footer */
- bytes_written = swrite(conn->sock[FIRSTSOCKET], tn->subbuffer+7, 2);
+ bytes_written = swrite(conn->sock[FIRSTSOCKET], tn->subbuffer + 7, 2);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data, "Sending data failed (%d)", err);
unsigned char c;
CURLcode result;
int in = 0;
- int startwrite=-1;
- struct SessionHandle *data = conn->data;
+ int startwrite = -1;
+ struct Curl_easy *data = conn->data;
struct TELNET *tn = (struct TELNET *)data->req.protop;
#define startskipping() \
while(count--) {
c = inbuf[in];
- switch (tn->telrcv_state) {
+ switch(tn->telrcv_state) {
case CURL_TS_CR:
tn->telrcv_state = CURL_TS_DATA;
if(c == '\0') {
case CURL_TS_IAC:
process_iac:
DEBUGASSERT(startwrite < 0);
- switch (c) {
+ switch(c) {
case CURL_WILL:
tn->telrcv_state = CURL_TS_WILL;
break;
* IAC SE was left off, or another option got inserted into the
* suboption are all possibilities. If we assume that the IAC was
* not doubled, and really the IAC SE was left off, we could get
- * into an infinate loop here. So, instead, we terminate the
+ * into an infinite loop here. So, instead, we terminate the
* suboption, and process the partial suboption if we can.
*/
CURL_SB_ACCUM(tn, CURL_IAC);
}
/* Escape and send a telnet data block */
-/* TODO: write large chunks of data instead of one byte at a time */
static CURLcode send_telnet_data(struct connectdata *conn,
char *buffer, ssize_t nread)
{
- unsigned char outbuf[2];
- ssize_t bytes_written, total_written;
- int out_count;
+ ssize_t escapes, i, j, outlen;
+ unsigned char *outbuf = NULL;
CURLcode result = CURLE_OK;
+ ssize_t bytes_written, total_written;
- while(!result && nread--) {
- outbuf[0] = *buffer++;
- out_count = 1;
- if(outbuf[0] == CURL_IAC)
- outbuf[out_count++] = CURL_IAC;
-
- total_written = 0;
- do {
- /* Make sure socket is writable to avoid EWOULDBLOCK condition */
- struct pollfd pfd[1];
- pfd[0].fd = conn->sock[FIRSTSOCKET];
- pfd[0].events = POLLOUT;
- switch (Curl_poll(pfd, 1, -1)) {
- case -1: /* error, abort writing */
- case 0: /* timeout (will never happen) */
- result = CURLE_SEND_ERROR;
- break;
- default: /* write! */
- bytes_written = 0;
- result = Curl_write(conn, conn->sock[FIRSTSOCKET],
- outbuf+total_written, out_count-total_written,
- &bytes_written);
- total_written += bytes_written;
- break;
- }
- /* handle partial write */
- } while(!result && total_written < out_count);
+ /* Determine size of new buffer after escaping */
+ escapes = 0;
+ for(i = 0; i < nread; i++)
+ if((unsigned char)buffer[i] == CURL_IAC)
+ escapes++;
+ outlen = nread + escapes;
+
+ if(outlen == nread)
+ outbuf = (unsigned char *)buffer;
+ else {
+ outbuf = malloc(nread + escapes + 1);
+ if(!outbuf)
+ return CURLE_OUT_OF_MEMORY;
+
+ j = 0;
+ for(i = 0; i < nread; i++) {
+ outbuf[j++] = buffer[i];
+ if((unsigned char)buffer[i] == CURL_IAC)
+ outbuf[j++] = CURL_IAC;
+ }
+ outbuf[j] = '\0';
}
+
+ total_written = 0;
+ while(!result && total_written < outlen) {
+ /* Make sure socket is writable to avoid EWOULDBLOCK condition */
+ struct pollfd pfd[1];
+ pfd[0].fd = conn->sock[FIRSTSOCKET];
+ pfd[0].events = POLLOUT;
+ switch(Curl_poll(pfd, 1, -1)) {
+ case -1: /* error, abort writing */
+ case 0: /* timeout (will never happen) */
+ result = CURLE_SEND_ERROR;
+ break;
+ default: /* write! */
+ bytes_written = 0;
+ result = Curl_write(conn, conn->sock[FIRSTSOCKET],
+ outbuf + total_written,
+ outlen - total_written,
+ &bytes_written);
+ total_written += bytes_written;
+ break;
+ }
+ }
+
+ /* Free malloc copy if escaped */
+ if(outbuf != (unsigned char *)buffer)
+ free(outbuf);
+
return result;
}
static CURLcode telnet_do(struct connectdata *conn, bool *done)
{
CURLcode result;
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
#ifdef USE_WINSOCK
HMODULE wsock2;
curl_off_t total_ul = 0;
#endif
ssize_t nread;
- struct timeval now;
+ struct curltime now;
bool keepon = TRUE;
char *buf = data->state.buffer;
struct TELNET *tn;
#ifdef USE_WINSOCK
/*
** This functionality only works with WinSock >= 2.0. So,
- ** make sure have it.
+ ** make sure we have it.
*/
result = check_wsock2(data);
if(result)
/* OK, so we have WinSock 2.0. We need to dynamically */
/* load ws2_32.dll and get the function pointers we need. */
- wsock2 = LoadLibrary(TEXT("WS2_32.DLL"));
+ wsock2 = Curl_load_library(TEXT("WS2_32.DLL"));
if(wsock2 == NULL) {
- failf(data, "failed to load WS2_32.DLL (%d)", ERRNO);
+ failf(data, "failed to load WS2_32.DLL (%u)", GetLastError());
return CURLE_FAILED_INIT;
}
/* Grab a pointer to WSACreateEvent */
create_event_func = GetProcAddress(wsock2, "WSACreateEvent");
if(create_event_func == NULL) {
- failf(data, "failed to find WSACreateEvent function (%d)", ERRNO);
+ failf(data, "failed to find WSACreateEvent function (%u)", GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSACloseEvent */
close_event_func = GetProcAddress(wsock2, "WSACloseEvent");
if(close_event_func == NULL) {
- failf(data, "failed to find WSACloseEvent function (%d)", ERRNO);
+ failf(data, "failed to find WSACloseEvent function (%u)", GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSAEventSelect */
event_select_func = GetProcAddress(wsock2, "WSAEventSelect");
if(event_select_func == NULL) {
- failf(data, "failed to find WSAEventSelect function (%d)", ERRNO);
+ failf(data, "failed to find WSAEventSelect function (%u)", GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* And WSAEnumNetworkEvents */
enum_netevents_func = GetProcAddress(wsock2, "WSAEnumNetworkEvents");
if(enum_netevents_func == NULL) {
- failf(data, "failed to find WSAEnumNetworkEvents function (%d)", ERRNO);
+ failf(data, "failed to find WSAEnumNetworkEvents function (%u)",
+ GetLastError());
FreeLibrary(wsock2);
return CURLE_FAILED_INIT;
}
/* Keep on listening and act on events */
while(keepon) {
+ const DWORD buf_size = (DWORD)data->set.buffer_size;
waitret = WaitForMultipleObjects(obj_count, objs, FALSE, wait_timeout);
switch(waitret) {
case WAIT_TIMEOUT:
{
for(;;) {
if(data->set.is_fread_set) {
+ size_t n;
/* read from user-supplied method */
- result = (int)data->state.fread_func(buf, 1, BUFSIZE - 1,
- data->state.in);
- if(result == CURL_READFUNC_ABORT) {
+ n = data->state.fread_func(buf, 1, buf_size, data->state.in);
+ if(n == CURL_READFUNC_ABORT) {
keepon = FALSE;
result = CURLE_READ_ERROR;
break;
}
- if(result == CURL_READFUNC_PAUSE)
+ if(n == CURL_READFUNC_PAUSE)
break;
- if(result == 0) /* no bytes */
+ if(n == 0) /* no bytes */
break;
- readfile_read = result; /* fall thru with number of bytes read */
+ /* fall through with number of bytes read */
+ readfile_read = (DWORD)n;
}
else {
/* read from stdin */
if(!readfile_read)
break;
- if(!ReadFile(stdin_handle, buf, sizeof(data->state.buffer),
+ if(!ReadFile(stdin_handle, buf, buf_size,
&readfile_read, NULL)) {
keepon = FALSE;
result = CURLE_READ_ERROR;
case WAIT_OBJECT_0 + 1:
{
- if(!ReadFile(stdin_handle, buf, sizeof(data->state.buffer),
+ if(!ReadFile(stdin_handle, buf, buf_size,
&readfile_read, NULL)) {
keepon = FALSE;
result = CURLE_READ_ERROR;
events.lNetworkEvents = 0;
if(SOCKET_ERROR == enum_netevents_func(sockfd, event_handle, &events)) {
- if((err = SOCKERRNO) != EINPROGRESS) {
+ err = SOCKERRNO;
+ if(err != EINPROGRESS) {
infof(data, "WSAEnumNetworkEvents failed (%d)", err);
keepon = FALSE;
result = CURLE_READ_ERROR;
}
if(events.lNetworkEvents & FD_READ) {
/* read data from network */
- result = Curl_read(conn, sockfd, buf, BUFSIZE - 1, &nread);
+ result = Curl_read(conn, sockfd, buf, data->set.buffer_size, &nread);
/* read would've blocked. Loop again */
if(result == CURLE_AGAIN)
break;
}
if(data->set.timeout) {
- now = Curl_tvnow();
- if(Curl_tvdiff(now, conn->created) >= data->set.timeout) {
+ now = Curl_now();
+ if(Curl_timediff(now, conn->created) >= data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;
keepon = FALSE;
/* We called LoadLibrary, so call FreeLibrary */
if(!FreeLibrary(wsock2))
- infof(data, "FreeLibrary(wsock2) failed (%d)", ERRNO);
+ infof(data, "FreeLibrary(wsock2) failed (%u)", GetLastError());
#else
pfd[0].fd = sockfd;
pfd[0].events = POLLIN;
}
while(keepon) {
- switch (Curl_poll(pfd, poll_cnt, interval_ms)) {
+ switch(Curl_poll(pfd, poll_cnt, interval_ms)) {
case -1: /* error, stop reading */
keepon = FALSE;
continue;
default: /* read! */
if(pfd[0].revents & POLLIN) {
/* read data from network */
- result = Curl_read(conn, sockfd, buf, BUFSIZE - 1, &nread);
+ result = Curl_read(conn, sockfd, buf, data->set.buffer_size, &nread);
/* read would've blocked. Loop again */
if(result == CURLE_AGAIN)
break;
/* returned not-zero, this an error */
- else if(result) {
+ if(result) {
keepon = FALSE;
break;
}
nread = 0;
if(poll_cnt == 2) {
if(pfd[1].revents & POLLIN) { /* read from in file */
- nread = read(pfd[1].fd, buf, BUFSIZE - 1);
+ nread = read(pfd[1].fd, buf, data->set.buffer_size);
}
}
else {
/* read from user-supplied method */
- nread = (int)data->state.fread_func(buf, 1, BUFSIZE - 1,
+ nread = (int)data->state.fread_func(buf, 1, data->set.buffer_size,
data->state.in);
if(nread == CURL_READFUNC_ABORT) {
keepon = FALSE;
} /* poll switch statement */
if(data->set.timeout) {
- now = Curl_tvnow();
- if(Curl_tvdiff(now, conn->created) >= data->set.timeout) {
+ now = Curl_now();
+ if(Curl_timediff(now, conn->created) >= data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;
keepon = FALSE;
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