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php5  5.3.10
Defines | Functions | Variables
transports.c File Reference
#include "php.h"
#include "php_streams_int.h"
#include "ext/standard/file.h"

Go to the source code of this file.

Defines

#define ERR_REPORT(out_err, fmt, arg)
#define ERR_RETURN(out_err, local_err, fmt)

Functions

PHPAPI HashTablephp_stream_xport_get_hash (void)
PHPAPI int php_stream_xport_register (char *protocol, php_stream_transport_factory factory TSRMLS_DC)
PHPAPI int php_stream_xport_unregister (char *protocol TSRMLS_DC)
PHPAPI php_stream * _php_stream_xport_create (const char *name, long namelen, int options, int flags, const char *persistent_id, struct timeval *timeout, php_stream_context *context, char **error_string, int *error_code STREAMS_DC TSRMLS_DC)
PHPAPI int php_stream_xport_bind (php_stream *stream, const char *name, long namelen, char **error_text TSRMLS_DC)
PHPAPI int php_stream_xport_connect (php_stream *stream, const char *name, long namelen, int asynchronous, struct timeval *timeout, char **error_text, int *error_code TSRMLS_DC)
PHPAPI int php_stream_xport_listen (php_stream *stream, int backlog, char **error_text TSRMLS_DC)
PHPAPI int php_stream_xport_accept (php_stream *stream, php_stream **client, char **textaddr, int *textaddrlen, void **addr, socklen_t *addrlen, struct timeval *timeout, char **error_text TSRMLS_DC)
PHPAPI int php_stream_xport_get_name (php_stream *stream, int want_peer, char **textaddr, int *textaddrlen, void **addr, socklen_t *addrlen TSRMLS_DC)
PHPAPI int php_stream_xport_crypto_setup (php_stream *stream, php_stream_xport_crypt_method_t crypto_method, php_stream *session_stream TSRMLS_DC)
PHPAPI int php_stream_xport_crypto_enable (php_stream *stream, int activate TSRMLS_DC)
PHPAPI int php_stream_xport_recvfrom (php_stream *stream, char *buf, size_t buflen, long flags, void **addr, socklen_t *addrlen, char **textaddr, int *textaddrlen TSRMLS_DC)
PHPAPI int php_stream_xport_sendto (php_stream *stream, const char *buf, size_t buflen, long flags, void *addr, socklen_t addrlen TSRMLS_DC)
PHPAPI int php_stream_xport_shutdown (php_stream *stream, stream_shutdown_t how TSRMLS_DC)

Variables

static HashTable xport_hash

Define Documentation

#define ERR_REPORT (   out_err,
  fmt,
  arg 
)
Value:
if (out_err) { spprintf(out_err, 0, fmt, arg); } \
       else { php_error_docref(NULL TSRMLS_CC, E_WARNING, fmt, arg); }

Definition at line 42 of file transports.c.

#define ERR_RETURN (   out_err,
  local_err,
  fmt 
)
Value:
if (out_err) { *out_err = local_err; } \
       else { php_error_docref(NULL TSRMLS_CC, E_WARNING, fmt, local_err ? local_err : "Unspecified error"); \
              if (local_err) { efree(local_err); local_err = NULL; } \
       }

Definition at line 46 of file transports.c.


Function Documentation

PHPAPI php_stream* _php_stream_xport_create ( const char *  name,
long  namelen,
int  options,
int  flags,
const char *  persistent_id,
struct timeval *  timeout,
php_stream_context *  context,
char **  error_string,
int *error_code STREAMS_DC  TSRMLS_DC 
)

Definition at line 52 of file transports.c.

{
       php_stream *stream = NULL;
       php_stream_transport_factory *factory = NULL;
       const char *p, *protocol = NULL;
       int n = 0, failed = 0;
       char *error_text = NULL;
       struct timeval default_timeout = { 0, 0 };
       
       default_timeout.tv_sec = FG(default_socket_timeout);

       if (timeout == NULL) {
              timeout = &default_timeout;
       }
       
       /* check for a cached persistent socket */
       if (persistent_id) {
              switch(php_stream_from_persistent_id(persistent_id, &stream TSRMLS_CC)) {
                     case PHP_STREAM_PERSISTENT_SUCCESS:
                            /* use a 0 second timeout when checking if the socket
                             * has already died */
                            if (PHP_STREAM_OPTION_RETURN_OK == php_stream_set_option(stream, PHP_STREAM_OPTION_CHECK_LIVENESS, 0, NULL)) {
                                   return stream;
                            }
                            /* dead - kill it */
                            php_stream_pclose(stream);
                            stream = NULL;

                            /* fall through */

                     case PHP_STREAM_PERSISTENT_FAILURE:
                     default:
                            /* failed; get a new one */
                            ;
              }
       }

       for (p = name; isalnum((int)*p) || *p == '+' || *p == '-' || *p == '.'; p++) {
              n++;
       }

       if ((*p == ':') && (n > 1) && !strncmp("://", p, 3)) {
              protocol = name;
              name = p + 3;
              namelen -= n + 3;
       } else {
              protocol = "tcp";
              n = 3;
       }

       if (protocol) {
              char *tmp = estrndup(protocol, n);
              if (FAILURE == zend_hash_find(&xport_hash, (char*)tmp, n + 1, (void**)&factory)) {
                     char wrapper_name[32];

                     if (n >= sizeof(wrapper_name))
                            n = sizeof(wrapper_name) - 1;
                     PHP_STRLCPY(wrapper_name, protocol, sizeof(wrapper_name), n);
              
                     ERR_REPORT(error_string, "Unable to find the socket transport \"%s\" - did you forget to enable it when you configured PHP?",
                                   wrapper_name);

                     efree(tmp);
                     return NULL;
              }
              efree(tmp);
       }

       if (factory == NULL) {
              /* should never happen */
              php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not find a factory !?");
              return NULL;
       }

       stream = (*factory)(protocol, n,
                     (char*)name, namelen, persistent_id, options, flags, timeout,
                     context STREAMS_REL_CC TSRMLS_CC);

       if (stream) {
              php_stream_context_set(stream, context);

              if ((flags & STREAM_XPORT_SERVER) == 0) {
                     /* client */

                     if (flags & (STREAM_XPORT_CONNECT|STREAM_XPORT_CONNECT_ASYNC)) {
                            if (-1 == php_stream_xport_connect(stream, name, namelen,
                                                 flags & STREAM_XPORT_CONNECT_ASYNC ? 1 : 0,
                                                 timeout, &error_text, error_code TSRMLS_CC)) {

                                   ERR_RETURN(error_string, error_text, "connect() failed: %s");

                                   failed = 1;
                            }
                     }

              } else {
                     /* server */
                     if (flags & STREAM_XPORT_BIND) {
                            if (0 != php_stream_xport_bind(stream, name, namelen, &error_text TSRMLS_CC)) {
                                   ERR_RETURN(error_string, error_text, "bind() failed: %s");
                                   failed = 1;
                            } else if (flags & STREAM_XPORT_LISTEN) {
                                   zval **zbacklog = NULL;
                                   int backlog = 32;
                                   
                                   if (stream->context && php_stream_context_get_option(stream->context, "socket", "backlog", &zbacklog) == SUCCESS) {
                                          zval *ztmp = *zbacklog;
                                          
                                          convert_to_long_ex(&ztmp);
                                          backlog = Z_LVAL_P(ztmp);
                                          if (ztmp != *zbacklog) {
                                                 zval_ptr_dtor(&ztmp);
                                          }
                                   }
                                   
                                   if (0 != php_stream_xport_listen(stream, backlog, &error_text TSRMLS_CC)) {
                                          ERR_RETURN(error_string, error_text, "listen() failed: %s");
                                          failed = 1;
                                   }
                            }
                     }
              }
       }

       if (failed) {
              /* failure means that they don't get a stream to play with */
              if (persistent_id) {
                     php_stream_pclose(stream);
              } else {
                     php_stream_close(stream);
              }
              stream = NULL;
       }

       return stream;
}

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PHPAPI int php_stream_xport_accept ( php_stream *  stream,
php_stream **  client,
char **  textaddr,
int textaddrlen,
void **  addr,
socklen_t addrlen,
struct timeval *  timeout,
char **error_text  TSRMLS_DC 
)

Definition at line 284 of file transports.c.

{
       php_stream_xport_param param;
       int ret;

       memset(&param, 0, sizeof(param));

       param.op = STREAM_XPORT_OP_ACCEPT;
       param.inputs.timeout = timeout;
       param.want_addr = addr ? 1 : 0;
       param.want_textaddr = textaddr ? 1 : 0;
       param.want_errortext = error_text ? 1 : 0;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              *client = param.outputs.client;
              if (addr) {
                     *addr = param.outputs.addr;
                     *addrlen = param.outputs.addrlen;
              }
              if (textaddr) {
                     *textaddr = param.outputs.textaddr;
                     *textaddrlen = param.outputs.textaddrlen;
              }
              if (error_text) {
                     *error_text = param.outputs.error_text;
              }

              return param.outputs.returncode;
       }
       return ret;
}

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PHPAPI int php_stream_xport_bind ( php_stream *  stream,
const char *  name,
long  namelen,
char **error_text  TSRMLS_DC 
)

Definition at line 196 of file transports.c.

{
       php_stream_xport_param param;
       int ret;
       
       memset(&param, 0, sizeof(param));
       param.op = STREAM_XPORT_OP_BIND;
       param.inputs.name = (char*)name;
       param.inputs.namelen = namelen;
       param.want_errortext = error_text ? 1 : 0;

       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              if (error_text) {
                     *error_text = param.outputs.error_text;
              }

              return param.outputs.returncode;
       }

       return ret;
}

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PHPAPI int php_stream_xport_connect ( php_stream *  stream,
const char *  name,
long  namelen,
int  asynchronous,
struct timeval *  timeout,
char **  error_text,
int *error_code  TSRMLS_DC 
)

Definition at line 224 of file transports.c.

{
       php_stream_xport_param param;
       int ret;
       
       memset(&param, 0, sizeof(param));
       param.op = asynchronous ? STREAM_XPORT_OP_CONNECT_ASYNC: STREAM_XPORT_OP_CONNECT;
       param.inputs.name = (char*)name;
       param.inputs.namelen = namelen;
       param.inputs.timeout = timeout;

       param.want_errortext = error_text ? 1 : 0;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              if (error_text) {
                     *error_text = param.outputs.error_text;
              }
              if (error_code) {
                     *error_code = param.outputs.error_code;
              }
              return param.outputs.returncode;
       }

       return ret;

}

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PHPAPI int php_stream_xport_crypto_enable ( php_stream *  stream,
int activate  TSRMLS_DC 
)

Definition at line 375 of file transports.c.

{
       php_stream_xport_crypto_param param;
       int ret;

       memset(&param, 0, sizeof(param));
       param.op = STREAM_XPORT_CRYPTO_OP_ENABLE;
       param.inputs.activate = activate;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_CRYPTO_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              return param.outputs.returncode;
       }

       php_error_docref("streams.crypto" TSRMLS_CC, E_WARNING, "this stream does not support SSL/crypto");
       
       return ret;
}

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PHPAPI int php_stream_xport_crypto_setup ( php_stream *  stream,
php_stream_xport_crypt_method_t  crypto_method,
php_stream *session_stream  TSRMLS_DC 
)

Definition at line 354 of file transports.c.

{
       php_stream_xport_crypto_param param;
       int ret;

       memset(&param, 0, sizeof(param));
       param.op = STREAM_XPORT_CRYPTO_OP_SETUP;
       param.inputs.method = crypto_method;
       param.inputs.session = session_stream;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_CRYPTO_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              return param.outputs.returncode;
       }

       php_error_docref("streams.crypto" TSRMLS_CC, E_WARNING, "this stream does not support SSL/crypto");
       
       return ret;
}

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Definition at line 27 of file transports.c.

{
       return &xport_hash;
}

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PHPAPI int php_stream_xport_get_name ( php_stream *  stream,
int  want_peer,
char **  textaddr,
int textaddrlen,
void **  addr,
socklen_t *addrlen  TSRMLS_DC 
)

Definition at line 323 of file transports.c.

{
       php_stream_xport_param param;
       int ret;

       memset(&param, 0, sizeof(param));

       param.op = want_peer ? STREAM_XPORT_OP_GET_PEER_NAME : STREAM_XPORT_OP_GET_NAME;
       param.want_addr = addr ? 1 : 0;
       param.want_textaddr = textaddr ? 1 : 0;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              if (addr) {
                     *addr = param.outputs.addr;
                     *addrlen = param.outputs.addrlen;
              }
              if (textaddr) {
                     *textaddr = param.outputs.textaddr;
                     *textaddrlen = param.outputs.textaddrlen;
              }

              return param.outputs.returncode;
       }
       return ret;
}

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PHPAPI int php_stream_xport_listen ( php_stream *  stream,
int  backlog,
char **error_text  TSRMLS_DC 
)

Definition at line 260 of file transports.c.

{
       php_stream_xport_param param;
       int ret;
       
       memset(&param, 0, sizeof(param));
       param.op = STREAM_XPORT_OP_LISTEN;
       param.inputs.backlog = backlog;
       param.want_errortext = error_text ? 1 : 0;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              if (error_text) {
                     *error_text = param.outputs.error_text;
              }

              return param.outputs.returncode;
       }

       return ret;
}

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PHPAPI int php_stream_xport_recvfrom ( php_stream *  stream,
char *  buf,
size_t  buflen,
long  flags,
void **  addr,
socklen_t addrlen,
char **  textaddr,
int *textaddrlen  TSRMLS_DC 
)

Definition at line 397 of file transports.c.

{
       php_stream_xport_param param;
       int ret = 0;
       int recvd_len = 0;
#if 0
       int oob;

       if (flags == 0 && addr == NULL) {
              return php_stream_read(stream, buf, buflen);
       }

       if (stream->readfilters.head) {
              php_error_docref(NULL TSRMLS_CC, E_WARNING, "cannot peek or fetch OOB data from a filtered stream");
              return -1;
       }
       
       oob = (flags & STREAM_OOB) == STREAM_OOB;

       if (!oob && addr == NULL) {
              /* must be peeking at regular data; copy content from the buffer
               * first, then adjust the pointer/len before handing off to the
               * stream */
              recvd_len = stream->writepos - stream->readpos;
              if (recvd_len > buflen) {
                     recvd_len = buflen;
              }
              if (recvd_len) {
                     memcpy(buf, stream->readbuf, recvd_len);
                     buf += recvd_len;
                     buflen -= recvd_len;
              }
              /* if we filled their buffer, return */
              if (buflen == 0) {
                     return recvd_len;
              }
       }
#endif

       /* otherwise, we are going to bypass the buffer */
       
       memset(&param, 0, sizeof(param));

       param.op = STREAM_XPORT_OP_RECV;
       param.want_addr = addr ? 1 : 0;
       param.want_textaddr = textaddr ? 1 : 0;
       param.inputs.buf = buf;
       param.inputs.buflen = buflen;
       param.inputs.flags = flags;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              if (addr) {
                     *addr = param.outputs.addr;
                     *addrlen = param.outputs.addrlen;
              }
              if (textaddr) {
                     *textaddr = param.outputs.textaddr;
                     *textaddrlen = param.outputs.textaddrlen;
              }
              return recvd_len + param.outputs.returncode;
       }
       return recvd_len ? recvd_len : -1;
}

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PHPAPI int php_stream_xport_register ( char *  protocol,
php_stream_transport_factory factory  TSRMLS_DC 
)

Definition at line 32 of file transports.c.

{
       return zend_hash_update(&xport_hash, protocol, strlen(protocol) + 1, &factory, sizeof(factory), NULL);
}

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PHPAPI int php_stream_xport_sendto ( php_stream *  stream,
const char *  buf,
size_t  buflen,
long  flags,
void *  addr,
socklen_t addrlen  TSRMLS_DC 
)

Definition at line 467 of file transports.c.

{
       php_stream_xport_param param;
       int ret = 0;
       int oob;

#if 0
       if (flags == 0 && addr == NULL) {
              return php_stream_write(stream, buf, buflen);
       }
#endif
       
       oob = (flags & STREAM_OOB) == STREAM_OOB;

       if ((oob || addr) && stream->writefilters.head) {
              php_error_docref(NULL TSRMLS_CC, E_WARNING, "cannot write OOB data, or data to a targeted address on a filtered stream");
              return -1;
       }
       
       memset(&param, 0, sizeof(param));

       param.op = STREAM_XPORT_OP_SEND;
       param.want_addr = addr ? 1 : 0;
       param.inputs.buf = (char*)buf;
       param.inputs.buflen = buflen;
       param.inputs.flags = flags;
       param.inputs.addr = addr;
       param.inputs.addrlen = addrlen;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              return param.outputs.returncode;
       }
       return -1;
}

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PHPAPI int php_stream_xport_shutdown ( php_stream *  stream,
stream_shutdown_t how  TSRMLS_DC 
)

Definition at line 507 of file transports.c.

{
       php_stream_xport_param param;
       int ret = 0;

       memset(&param, 0, sizeof(param));

       param.op = STREAM_XPORT_OP_SHUTDOWN;
       param.how = how;
       
       ret = php_stream_set_option(stream, PHP_STREAM_OPTION_XPORT_API, 0, &param);

       if (ret == PHP_STREAM_OPTION_RETURN_OK) {
              return param.outputs.returncode;
       }
       return -1;
}
PHPAPI int php_stream_xport_unregister ( char *protocol  TSRMLS_DC)

Definition at line 37 of file transports.c.

{
       return zend_hash_del(&xport_hash, protocol, strlen(protocol) + 1);
}

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Variable Documentation

Definition at line 25 of file transports.c.