#include "setup.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
#include <winsock.h>
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#define _MPRINTF_REPLACE
#include <curl/mprintf.h>
#ifdef KRB4
#include "security.h"
#endif
#include <string.h>
#ifdef MALLOCDEBUG
#include "memdebug.h"
#endif
static struct curl_slist *slist_get_last(struct curl_slist *list)
{
struct curl_slist *item;
if (!list)
return NULL;
item = list;
while (item->next) {
item = item->next;
}
return item;
}
struct curl_slist *curl_slist_append(struct curl_slist *list,
const char *data)
{
struct curl_slist *last;
struct curl_slist *new_item;
new_item = (struct curl_slist *) malloc(sizeof(struct curl_slist));
if (new_item) {
new_item->next = NULL;
new_item->data = strdup(data);
}
if (new_item == NULL || new_item->data == NULL) {
fprintf(stderr, "Cannot allocate memory for QUOTE list.\n");
return NULL;
}
if (list) {
last = slist_get_last(list);
last->next = new_item;
return list;
}
return new_item;
}
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);
}
void Curl_infof(struct SessionHandle *data, const char *fmt, ...)
{
va_list ap;
if(data->set.verbose) {
char print_buffer[1024 + 1];
va_start(ap, fmt);
vsnprintf(print_buffer, 1024, fmt, ap);
va_end(ap);
Curl_debug(data, CURLINFO_TEXT, print_buffer, strlen(print_buffer));
}
}
void Curl_failf(struct SessionHandle *data, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if(data->set.errorbuffer && !data->state.errorbuf) {
vsnprintf(data->set.errorbuffer, CURL_ERROR_SIZE, fmt, ap);
data->state.errorbuf = TRUE;
if(data->set.verbose)
Curl_debug(data, CURLINFO_TEXT, data->set.errorbuffer,
strlen(data->set.errorbuffer));
}
va_end(ap);
}
CURLcode Curl_sendf(int sockfd, struct connectdata *conn,
const char *fmt, ...)
{
struct SessionHandle *data = conn->data;
ssize_t bytes_written;
ssize_t write_len;
CURLcode res;
char *s;
char *sptr;
va_list ap;
va_start(ap, fmt);
s = vaprintf(fmt, ap);
va_end(ap);
if(!s)
return CURLE_OUT_OF_MEMORY;
bytes_written=0;
write_len = strlen(s);
sptr = s;
do {
res = Curl_write(conn, sockfd, sptr, write_len, &bytes_written);
if(CURLE_OK != res)
break;
if(data->set.verbose)
Curl_debug(data, CURLINFO_DATA_OUT, sptr, bytes_written);
if(bytes_written != write_len) {
write_len -= bytes_written;
sptr += bytes_written;
}
else
break;
} while(1);
free(s);
return res;
}
CURLcode Curl_write(struct connectdata *conn, int sockfd,
void *mem, size_t len,
ssize_t *written)
{
ssize_t bytes_written;
#ifdef USE_SSLEAY
if (conn->ssl.use) {
int err;
int rc = SSL_write(conn->ssl.handle, mem, len);
if(rc < 0) {
err = SSL_get_error(conn->ssl.handle, rc);
switch(err) {
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
*written = 0;
return CURLE_OK;
}
failf(conn->data, "SSL_write() return error %d\n", err);
return CURLE_SEND_ERROR;
}
bytes_written = rc;
}
else {
#endif
#ifdef KRB4
if(conn->sec_complete) {
bytes_written = Curl_sec_write(conn, sockfd, mem, len);
}
else
#endif
{
bytes_written = swrite(sockfd, mem, len);
}
if(-1 == bytes_written) {
#ifdef WIN32
if(WSAEWOULDBLOCK == GetLastError())
#else
if(EWOULDBLOCK == errno)
#endif
{
*written=0;
return CURLE_OK;
}
}
#ifdef USE_SSLEAY
}
#endif
*written = bytes_written;
return (-1 != bytes_written)?CURLE_OK:CURLE_SEND_ERROR;
}
CURLcode Curl_client_write(struct SessionHandle *data,
int type,
char *ptr,
size_t len)
{
size_t wrote;
if(0 == len)
len = strlen(ptr);
if(type & CLIENTWRITE_BODY) {
wrote = data->set.fwrite(ptr, 1, len, data->set.out);
if(wrote != len) {
failf (data, "Failed writing body");
return CURLE_WRITE_ERROR;
}
}
if((type & CLIENTWRITE_HEADER) &&
(data->set.fwrite_header || data->set.writeheader) ) {
curl_write_callback writeit=
data->set.fwrite_header?data->set.fwrite_header:data->set.fwrite;
wrote = writeit(ptr, 1, len, data->set.writeheader);
if(wrote != len) {
failf (data, "Failed writing header");
return CURLE_WRITE_ERROR;
}
}
return CURLE_OK;
}
int Curl_read(struct connectdata *conn,
int sockfd,
char *buf,
size_t buffersize,
ssize_t *n)
{
ssize_t nread;
#ifdef USE_SSLEAY
if (conn->ssl.use) {
bool loop=TRUE;
int err;
do {
nread = SSL_read(conn->ssl.handle, buf, buffersize);
if(nread >= 0)
break;
err = SSL_get_error(conn->ssl.handle, nread);
switch(err) {
case SSL_ERROR_NONE:
case SSL_ERROR_ZERO_RETURN:
loop=0;
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
break;
default:
failf(conn->data, "SSL read error: %d", err);
return CURLE_RECV_ERROR;
}
} while(loop);
if(loop && SSL_pending(conn->ssl.handle))
return -1;
}
else {
#endif
#ifdef KRB4
if(conn->sec_complete)
nread = Curl_sec_read(conn, sockfd, buf, buffersize);
else
#endif
nread = sread (sockfd, buf, buffersize);
if(-1 == nread) {
#ifdef WIN32
if(WSAEWOULDBLOCK == GetLastError())
#else
if(EWOULDBLOCK == errno)
#endif
return -1;
}
#ifdef USE_SSLEAY
}
#endif
*n = nread;
return CURLE_OK;
}
int Curl_debug(struct SessionHandle *data, curl_infotype type,
char *ptr, size_t size)
{
static const char * const s_infotype[CURLINFO_END] = {
"* ", "< ", "> ", "{ ", "} " };
if(data->set.fdebug)
return (*data->set.fdebug)(data, type, ptr, size,
data->set.debugdata);
switch(type) {
case CURLINFO_TEXT:
case CURLINFO_HEADER_OUT:
fwrite(s_infotype[type], 2, 1, data->set.err);
fwrite(ptr, size, 1, data->set.err);
break;
default:
break;
}
return 0;
}