diff options
author | wawaka <[email protected]> | 2022-02-10 16:47:48 +0300 |
---|---|---|
committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:47:48 +0300 |
commit | 76cdacbb1f8f9a6a7059a9c2ec73b06431cb6fc2 (patch) | |
tree | c0748b5dcbade83af788c0abfa89c0383d6b779c /contrib/libs/libxml/nanoftp.c | |
parent | ed524783c88c81047033c5d6e5543db3a2251ad5 (diff) |
Restoring authorship annotation for <[email protected]>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/libxml/nanoftp.c')
-rw-r--r-- | contrib/libs/libxml/nanoftp.c | 4222 |
1 files changed, 2111 insertions, 2111 deletions
diff --git a/contrib/libs/libxml/nanoftp.c b/contrib/libs/libxml/nanoftp.c index 828ede957c1..54fa026d1bc 100644 --- a/contrib/libs/libxml/nanoftp.c +++ b/contrib/libs/libxml/nanoftp.c @@ -1,2119 +1,2119 @@ -/* - * nanoftp.c: basic FTP client support - * - * Reference: RFC 959 - */ - -#ifdef TESTING -#define STANDALONE -#define HAVE_STDLIB_H -#define HAVE_UNISTD_H -#define HAVE_SYS_SOCKET_H -#define HAVE_NETINET_IN_H -#define HAVE_NETDB_H -#define HAVE_SYS_TIME_H -#endif /* TESTING */ - -#define IN_LIBXML -#include "libxml.h" - -#ifdef LIBXML_FTP_ENABLED -#include <string.h> - -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#ifdef HAVE_SYS_SOCKET_H -#include <sys/socket.h> -#endif -#ifdef HAVE_NETINET_IN_H -#include <netinet/in.h> -#endif -#ifdef HAVE_ARPA_INET_H -#include <arpa/inet.h> -#endif -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif -#ifdef HAVE_FCNTL_H -#include <fcntl.h> -#endif -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif -#ifdef HAVE_SYS_SELECT_H -#include <sys/select.h> -#endif -#ifdef HAVE_SYS_SOCKET_H -#include <sys/socket.h> -#endif -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif - -#include <libxml/xmlmemory.h> -#include <libxml/parser.h> -#include <libxml/xmlerror.h> -#include <libxml/uri.h> -#include <libxml/nanoftp.h> -#include <libxml/globals.h> - -/* #define DEBUG_FTP 1 */ -#ifdef STANDALONE -#ifndef DEBUG_FTP -#define DEBUG_FTP 1 -#endif -#endif - - +/* + * nanoftp.c: basic FTP client support + * + * Reference: RFC 959 + */ + +#ifdef TESTING +#define STANDALONE +#define HAVE_STDLIB_H +#define HAVE_UNISTD_H +#define HAVE_SYS_SOCKET_H +#define HAVE_NETINET_IN_H +#define HAVE_NETDB_H +#define HAVE_SYS_TIME_H +#endif /* TESTING */ + +#define IN_LIBXML +#include "libxml.h" + +#ifdef LIBXML_FTP_ENABLED +#include <string.h> + +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif +#ifdef HAVE_ERRNO_H +#include <errno.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif + +#include <libxml/xmlmemory.h> +#include <libxml/parser.h> +#include <libxml/xmlerror.h> +#include <libxml/uri.h> +#include <libxml/nanoftp.h> +#include <libxml/globals.h> + +/* #define DEBUG_FTP 1 */ +#ifdef STANDALONE +#ifndef DEBUG_FTP +#define DEBUG_FTP 1 +#endif +#endif + + #if defined(_WIN32) && !defined(__CYGWIN__) -#include <wsockcompat.h> -#endif - -/** - * A couple portability macros - */ -#ifndef _WINSOCKAPI_ -#if !defined(__BEOS__) || defined(__HAIKU__) -#define closesocket(s) close(s) -#endif -#endif - -#ifdef __BEOS__ -#ifndef PF_INET -#define PF_INET AF_INET -#endif -#endif - -#ifdef _AIX -#ifdef HAVE_BROKEN_SS_FAMILY -#define ss_family __ss_family -#endif -#endif - -#ifndef XML_SOCKLEN_T -#define XML_SOCKLEN_T unsigned int -#endif - -#define FTP_COMMAND_OK 200 -#define FTP_SYNTAX_ERROR 500 -#define FTP_GET_PASSWD 331 -#define FTP_BUF_SIZE 1024 - -#define XML_NANO_MAX_URLBUF 4096 - -typedef struct xmlNanoFTPCtxt { - char *protocol; /* the protocol name */ - char *hostname; /* the host name */ - int port; /* the port */ - char *path; /* the path within the URL */ - char *user; /* user string */ - char *passwd; /* passwd string */ -#ifdef SUPPORT_IP6 - struct sockaddr_storage ftpAddr; /* this is large enough to hold IPv6 address*/ -#else - struct sockaddr_in ftpAddr; /* the socket address struct */ -#endif - int passive; /* currently we support only passive !!! */ - SOCKET controlFd; /* the file descriptor for the control socket */ - SOCKET dataFd; /* the file descriptor for the data socket */ - int state; /* WRITE / READ / CLOSED */ - int returnValue; /* the protocol return value */ - /* buffer for data received from the control connection */ - char controlBuf[FTP_BUF_SIZE + 1]; - int controlBufIndex; - int controlBufUsed; - int controlBufAnswer; -} xmlNanoFTPCtxt, *xmlNanoFTPCtxtPtr; - -static int initialized = 0; -static char *proxy = NULL; /* the proxy name if any */ -static int proxyPort = 0; /* the proxy port if any */ -static char *proxyUser = NULL; /* user for proxy authentication */ -static char *proxyPasswd = NULL;/* passwd for proxy authentication */ -static int proxyType = 0; /* uses TYPE or a@b ? */ - -#ifdef SUPPORT_IP6 -static -int have_ipv6(void) { - int s; - - s = socket (AF_INET6, SOCK_STREAM, 0); - if (s != -1) { - close (s); - return (1); - } - return (0); -} -#endif - -/** - * xmlFTPErrMemory: - * @extra: extra informations - * - * Handle an out of memory condition - */ -static void -xmlFTPErrMemory(const char *extra) -{ - __xmlSimpleError(XML_FROM_FTP, XML_ERR_NO_MEMORY, NULL, NULL, extra); -} - -/** - * xmlNanoFTPInit: - * - * Initialize the FTP protocol layer. - * Currently it just checks for proxy informations, - * and get the hostname - */ - -void -xmlNanoFTPInit(void) { - const char *env; -#ifdef _WINSOCKAPI_ - WSADATA wsaData; -#endif - - if (initialized) - return; - -#ifdef _WINSOCKAPI_ - if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) - return; -#endif - - proxyPort = 21; - env = getenv("no_proxy"); - if (env && ((env[0] == '*' ) && (env[1] == 0))) - return; - env = getenv("ftp_proxy"); - if (env != NULL) { - xmlNanoFTPScanProxy(env); - } else { - env = getenv("FTP_PROXY"); - if (env != NULL) { - xmlNanoFTPScanProxy(env); - } - } - env = getenv("ftp_proxy_user"); - if (env != NULL) { - proxyUser = xmlMemStrdup(env); - } - env = getenv("ftp_proxy_password"); - if (env != NULL) { - proxyPasswd = xmlMemStrdup(env); - } - initialized = 1; -} - -/** - * xmlNanoFTPCleanup: - * - * Cleanup the FTP protocol layer. This cleanup proxy informations. - */ - -void -xmlNanoFTPCleanup(void) { - if (proxy != NULL) { - xmlFree(proxy); - proxy = NULL; - } - if (proxyUser != NULL) { - xmlFree(proxyUser); - proxyUser = NULL; - } - if (proxyPasswd != NULL) { - xmlFree(proxyPasswd); - proxyPasswd = NULL; - } -#ifdef _WINSOCKAPI_ - if (initialized) - WSACleanup(); -#endif - initialized = 0; -} - -/** - * xmlNanoFTPProxy: - * @host: the proxy host name - * @port: the proxy port - * @user: the proxy user name - * @passwd: the proxy password - * @type: the type of proxy 1 for using SITE, 2 for USER a@b - * - * Setup the FTP proxy informations. - * This can also be done by using ftp_proxy ftp_proxy_user and - * ftp_proxy_password environment variables. - */ - -void -xmlNanoFTPProxy(const char *host, int port, const char *user, - const char *passwd, int type) { - if (proxy != NULL) { - xmlFree(proxy); - proxy = NULL; - } - if (proxyUser != NULL) { - xmlFree(proxyUser); - proxyUser = NULL; - } - if (proxyPasswd != NULL) { - xmlFree(proxyPasswd); - proxyPasswd = NULL; - } - if (host) - proxy = xmlMemStrdup(host); - if (user) - proxyUser = xmlMemStrdup(user); - if (passwd) - proxyPasswd = xmlMemStrdup(passwd); - proxyPort = port; - proxyType = type; -} - -/** - * xmlNanoFTPScanURL: - * @ctx: an FTP context - * @URL: The URL used to initialize the context - * - * (Re)Initialize an FTP context by parsing the URL and finding - * the protocol host port and path it indicates. - */ - -static void -xmlNanoFTPScanURL(void *ctx, const char *URL) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - xmlURIPtr uri; - - /* - * Clear any existing data from the context - */ - if (ctxt->protocol != NULL) { - xmlFree(ctxt->protocol); - ctxt->protocol = NULL; - } - if (ctxt->hostname != NULL) { - xmlFree(ctxt->hostname); - ctxt->hostname = NULL; - } - if (ctxt->path != NULL) { - xmlFree(ctxt->path); - ctxt->path = NULL; - } - if (URL == NULL) return; - - uri = xmlParseURIRaw(URL, 1); - if (uri == NULL) - return; - - if ((uri->scheme == NULL) || (uri->server == NULL)) { - xmlFreeURI(uri); - return; - } - - ctxt->protocol = xmlMemStrdup(uri->scheme); - ctxt->hostname = xmlMemStrdup(uri->server); - if (uri->path != NULL) - ctxt->path = xmlMemStrdup(uri->path); - else - ctxt->path = xmlMemStrdup("/"); - if (uri->port != 0) - ctxt->port = uri->port; - - if (uri->user != NULL) { - char *cptr; - if ((cptr=strchr(uri->user, ':')) == NULL) - ctxt->user = xmlMemStrdup(uri->user); - else { - ctxt->user = (char *)xmlStrndup((xmlChar *)uri->user, - (cptr - uri->user)); - ctxt->passwd = xmlMemStrdup(cptr+1); - } - } - - xmlFreeURI(uri); - -} - -/** - * xmlNanoFTPUpdateURL: - * @ctx: an FTP context - * @URL: The URL used to update the context - * - * Update an FTP context by parsing the URL and finding - * new path it indicates. If there is an error in the - * protocol, hostname, port or other information, the - * error is raised. It indicates a new connection has to - * be established. - * - * Returns 0 if Ok, -1 in case of error (other host). - */ - -int -xmlNanoFTPUpdateURL(void *ctx, const char *URL) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - xmlURIPtr uri; - - if (URL == NULL) - return(-1); - if (ctxt == NULL) - return(-1); - if (ctxt->protocol == NULL) - return(-1); - if (ctxt->hostname == NULL) - return(-1); - - uri = xmlParseURIRaw(URL, 1); - if (uri == NULL) - return(-1); - - if ((uri->scheme == NULL) || (uri->server == NULL)) { - xmlFreeURI(uri); - return(-1); - } - if ((strcmp(ctxt->protocol, uri->scheme)) || - (strcmp(ctxt->hostname, uri->server)) || - ((uri->port != 0) && (ctxt->port != uri->port))) { - xmlFreeURI(uri); - return(-1); - } - - if (uri->port != 0) - ctxt->port = uri->port; - - if (ctxt->path != NULL) { - xmlFree(ctxt->path); - ctxt->path = NULL; - } - - if (uri->path == NULL) - ctxt->path = xmlMemStrdup("/"); - else - ctxt->path = xmlMemStrdup(uri->path); - - xmlFreeURI(uri); - - return(0); -} - -/** - * xmlNanoFTPScanProxy: - * @URL: The proxy URL used to initialize the proxy context - * - * (Re)Initialize the FTP Proxy context by parsing the URL and finding - * the protocol host port it indicates. - * Should be like ftp://myproxy/ or ftp://myproxy:3128/ - * A NULL URL cleans up proxy informations. - */ - -void -xmlNanoFTPScanProxy(const char *URL) { - xmlURIPtr uri; - - if (proxy != NULL) { - xmlFree(proxy); - proxy = NULL; - } - proxyPort = 0; - -#ifdef DEBUG_FTP - if (URL == NULL) - xmlGenericError(xmlGenericErrorContext, - "Removing FTP proxy info\n"); - else - xmlGenericError(xmlGenericErrorContext, - "Using FTP proxy %s\n", URL); -#endif - if (URL == NULL) return; - - uri = xmlParseURIRaw(URL, 1); - if ((uri == NULL) || (uri->scheme == NULL) || - (strcmp(uri->scheme, "ftp")) || (uri->server == NULL)) { - __xmlIOErr(XML_FROM_FTP, XML_FTP_URL_SYNTAX, "Syntax Error\n"); - if (uri != NULL) - xmlFreeURI(uri); - return; - } - - proxy = xmlMemStrdup(uri->server); - if (uri->port != 0) - proxyPort = uri->port; - - xmlFreeURI(uri); -} - -/** - * xmlNanoFTPNewCtxt: - * @URL: The URL used to initialize the context - * - * Allocate and initialize a new FTP context. - * - * Returns an FTP context or NULL in case of error. - */ - -void* -xmlNanoFTPNewCtxt(const char *URL) { - xmlNanoFTPCtxtPtr ret; - char *unescaped; - - ret = (xmlNanoFTPCtxtPtr) xmlMalloc(sizeof(xmlNanoFTPCtxt)); - if (ret == NULL) { - xmlFTPErrMemory("allocating FTP context"); - return(NULL); - } - - memset(ret, 0, sizeof(xmlNanoFTPCtxt)); - ret->port = 21; - ret->passive = 1; - ret->returnValue = 0; - ret->controlBufIndex = 0; - ret->controlBufUsed = 0; - ret->controlFd = INVALID_SOCKET; - - unescaped = xmlURIUnescapeString(URL, 0, NULL); - if (unescaped != NULL) { - xmlNanoFTPScanURL(ret, unescaped); - xmlFree(unescaped); - } else if (URL != NULL) - xmlNanoFTPScanURL(ret, URL); - - return(ret); -} - -/** - * xmlNanoFTPFreeCtxt: - * @ctx: an FTP context - * - * Frees the context after closing the connection. - */ - -void -xmlNanoFTPFreeCtxt(void * ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - if (ctxt == NULL) return; - if (ctxt->hostname != NULL) xmlFree(ctxt->hostname); - if (ctxt->protocol != NULL) xmlFree(ctxt->protocol); - if (ctxt->path != NULL) xmlFree(ctxt->path); +#include <wsockcompat.h> +#endif + +/** + * A couple portability macros + */ +#ifndef _WINSOCKAPI_ +#if !defined(__BEOS__) || defined(__HAIKU__) +#define closesocket(s) close(s) +#endif +#endif + +#ifdef __BEOS__ +#ifndef PF_INET +#define PF_INET AF_INET +#endif +#endif + +#ifdef _AIX +#ifdef HAVE_BROKEN_SS_FAMILY +#define ss_family __ss_family +#endif +#endif + +#ifndef XML_SOCKLEN_T +#define XML_SOCKLEN_T unsigned int +#endif + +#define FTP_COMMAND_OK 200 +#define FTP_SYNTAX_ERROR 500 +#define FTP_GET_PASSWD 331 +#define FTP_BUF_SIZE 1024 + +#define XML_NANO_MAX_URLBUF 4096 + +typedef struct xmlNanoFTPCtxt { + char *protocol; /* the protocol name */ + char *hostname; /* the host name */ + int port; /* the port */ + char *path; /* the path within the URL */ + char *user; /* user string */ + char *passwd; /* passwd string */ +#ifdef SUPPORT_IP6 + struct sockaddr_storage ftpAddr; /* this is large enough to hold IPv6 address*/ +#else + struct sockaddr_in ftpAddr; /* the socket address struct */ +#endif + int passive; /* currently we support only passive !!! */ + SOCKET controlFd; /* the file descriptor for the control socket */ + SOCKET dataFd; /* the file descriptor for the data socket */ + int state; /* WRITE / READ / CLOSED */ + int returnValue; /* the protocol return value */ + /* buffer for data received from the control connection */ + char controlBuf[FTP_BUF_SIZE + 1]; + int controlBufIndex; + int controlBufUsed; + int controlBufAnswer; +} xmlNanoFTPCtxt, *xmlNanoFTPCtxtPtr; + +static int initialized = 0; +static char *proxy = NULL; /* the proxy name if any */ +static int proxyPort = 0; /* the proxy port if any */ +static char *proxyUser = NULL; /* user for proxy authentication */ +static char *proxyPasswd = NULL;/* passwd for proxy authentication */ +static int proxyType = 0; /* uses TYPE or a@b ? */ + +#ifdef SUPPORT_IP6 +static +int have_ipv6(void) { + int s; + + s = socket (AF_INET6, SOCK_STREAM, 0); + if (s != -1) { + close (s); + return (1); + } + return (0); +} +#endif + +/** + * xmlFTPErrMemory: + * @extra: extra informations + * + * Handle an out of memory condition + */ +static void +xmlFTPErrMemory(const char *extra) +{ + __xmlSimpleError(XML_FROM_FTP, XML_ERR_NO_MEMORY, NULL, NULL, extra); +} + +/** + * xmlNanoFTPInit: + * + * Initialize the FTP protocol layer. + * Currently it just checks for proxy informations, + * and get the hostname + */ + +void +xmlNanoFTPInit(void) { + const char *env; +#ifdef _WINSOCKAPI_ + WSADATA wsaData; +#endif + + if (initialized) + return; + +#ifdef _WINSOCKAPI_ + if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) + return; +#endif + + proxyPort = 21; + env = getenv("no_proxy"); + if (env && ((env[0] == '*' ) && (env[1] == 0))) + return; + env = getenv("ftp_proxy"); + if (env != NULL) { + xmlNanoFTPScanProxy(env); + } else { + env = getenv("FTP_PROXY"); + if (env != NULL) { + xmlNanoFTPScanProxy(env); + } + } + env = getenv("ftp_proxy_user"); + if (env != NULL) { + proxyUser = xmlMemStrdup(env); + } + env = getenv("ftp_proxy_password"); + if (env != NULL) { + proxyPasswd = xmlMemStrdup(env); + } + initialized = 1; +} + +/** + * xmlNanoFTPCleanup: + * + * Cleanup the FTP protocol layer. This cleanup proxy informations. + */ + +void +xmlNanoFTPCleanup(void) { + if (proxy != NULL) { + xmlFree(proxy); + proxy = NULL; + } + if (proxyUser != NULL) { + xmlFree(proxyUser); + proxyUser = NULL; + } + if (proxyPasswd != NULL) { + xmlFree(proxyPasswd); + proxyPasswd = NULL; + } +#ifdef _WINSOCKAPI_ + if (initialized) + WSACleanup(); +#endif + initialized = 0; +} + +/** + * xmlNanoFTPProxy: + * @host: the proxy host name + * @port: the proxy port + * @user: the proxy user name + * @passwd: the proxy password + * @type: the type of proxy 1 for using SITE, 2 for USER a@b + * + * Setup the FTP proxy informations. + * This can also be done by using ftp_proxy ftp_proxy_user and + * ftp_proxy_password environment variables. + */ + +void +xmlNanoFTPProxy(const char *host, int port, const char *user, + const char *passwd, int type) { + if (proxy != NULL) { + xmlFree(proxy); + proxy = NULL; + } + if (proxyUser != NULL) { + xmlFree(proxyUser); + proxyUser = NULL; + } + if (proxyPasswd != NULL) { + xmlFree(proxyPasswd); + proxyPasswd = NULL; + } + if (host) + proxy = xmlMemStrdup(host); + if (user) + proxyUser = xmlMemStrdup(user); + if (passwd) + proxyPasswd = xmlMemStrdup(passwd); + proxyPort = port; + proxyType = type; +} + +/** + * xmlNanoFTPScanURL: + * @ctx: an FTP context + * @URL: The URL used to initialize the context + * + * (Re)Initialize an FTP context by parsing the URL and finding + * the protocol host port and path it indicates. + */ + +static void +xmlNanoFTPScanURL(void *ctx, const char *URL) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + xmlURIPtr uri; + + /* + * Clear any existing data from the context + */ + if (ctxt->protocol != NULL) { + xmlFree(ctxt->protocol); + ctxt->protocol = NULL; + } + if (ctxt->hostname != NULL) { + xmlFree(ctxt->hostname); + ctxt->hostname = NULL; + } + if (ctxt->path != NULL) { + xmlFree(ctxt->path); + ctxt->path = NULL; + } + if (URL == NULL) return; + + uri = xmlParseURIRaw(URL, 1); + if (uri == NULL) + return; + + if ((uri->scheme == NULL) || (uri->server == NULL)) { + xmlFreeURI(uri); + return; + } + + ctxt->protocol = xmlMemStrdup(uri->scheme); + ctxt->hostname = xmlMemStrdup(uri->server); + if (uri->path != NULL) + ctxt->path = xmlMemStrdup(uri->path); + else + ctxt->path = xmlMemStrdup("/"); + if (uri->port != 0) + ctxt->port = uri->port; + + if (uri->user != NULL) { + char *cptr; + if ((cptr=strchr(uri->user, ':')) == NULL) + ctxt->user = xmlMemStrdup(uri->user); + else { + ctxt->user = (char *)xmlStrndup((xmlChar *)uri->user, + (cptr - uri->user)); + ctxt->passwd = xmlMemStrdup(cptr+1); + } + } + + xmlFreeURI(uri); + +} + +/** + * xmlNanoFTPUpdateURL: + * @ctx: an FTP context + * @URL: The URL used to update the context + * + * Update an FTP context by parsing the URL and finding + * new path it indicates. If there is an error in the + * protocol, hostname, port or other information, the + * error is raised. It indicates a new connection has to + * be established. + * + * Returns 0 if Ok, -1 in case of error (other host). + */ + +int +xmlNanoFTPUpdateURL(void *ctx, const char *URL) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + xmlURIPtr uri; + + if (URL == NULL) + return(-1); + if (ctxt == NULL) + return(-1); + if (ctxt->protocol == NULL) + return(-1); + if (ctxt->hostname == NULL) + return(-1); + + uri = xmlParseURIRaw(URL, 1); + if (uri == NULL) + return(-1); + + if ((uri->scheme == NULL) || (uri->server == NULL)) { + xmlFreeURI(uri); + return(-1); + } + if ((strcmp(ctxt->protocol, uri->scheme)) || + (strcmp(ctxt->hostname, uri->server)) || + ((uri->port != 0) && (ctxt->port != uri->port))) { + xmlFreeURI(uri); + return(-1); + } + + if (uri->port != 0) + ctxt->port = uri->port; + + if (ctxt->path != NULL) { + xmlFree(ctxt->path); + ctxt->path = NULL; + } + + if (uri->path == NULL) + ctxt->path = xmlMemStrdup("/"); + else + ctxt->path = xmlMemStrdup(uri->path); + + xmlFreeURI(uri); + + return(0); +} + +/** + * xmlNanoFTPScanProxy: + * @URL: The proxy URL used to initialize the proxy context + * + * (Re)Initialize the FTP Proxy context by parsing the URL and finding + * the protocol host port it indicates. + * Should be like ftp://myproxy/ or ftp://myproxy:3128/ + * A NULL URL cleans up proxy informations. + */ + +void +xmlNanoFTPScanProxy(const char *URL) { + xmlURIPtr uri; + + if (proxy != NULL) { + xmlFree(proxy); + proxy = NULL; + } + proxyPort = 0; + +#ifdef DEBUG_FTP + if (URL == NULL) + xmlGenericError(xmlGenericErrorContext, + "Removing FTP proxy info\n"); + else + xmlGenericError(xmlGenericErrorContext, + "Using FTP proxy %s\n", URL); +#endif + if (URL == NULL) return; + + uri = xmlParseURIRaw(URL, 1); + if ((uri == NULL) || (uri->scheme == NULL) || + (strcmp(uri->scheme, "ftp")) || (uri->server == NULL)) { + __xmlIOErr(XML_FROM_FTP, XML_FTP_URL_SYNTAX, "Syntax Error\n"); + if (uri != NULL) + xmlFreeURI(uri); + return; + } + + proxy = xmlMemStrdup(uri->server); + if (uri->port != 0) + proxyPort = uri->port; + + xmlFreeURI(uri); +} + +/** + * xmlNanoFTPNewCtxt: + * @URL: The URL used to initialize the context + * + * Allocate and initialize a new FTP context. + * + * Returns an FTP context or NULL in case of error. + */ + +void* +xmlNanoFTPNewCtxt(const char *URL) { + xmlNanoFTPCtxtPtr ret; + char *unescaped; + + ret = (xmlNanoFTPCtxtPtr) xmlMalloc(sizeof(xmlNanoFTPCtxt)); + if (ret == NULL) { + xmlFTPErrMemory("allocating FTP context"); + return(NULL); + } + + memset(ret, 0, sizeof(xmlNanoFTPCtxt)); + ret->port = 21; + ret->passive = 1; + ret->returnValue = 0; + ret->controlBufIndex = 0; + ret->controlBufUsed = 0; + ret->controlFd = INVALID_SOCKET; + + unescaped = xmlURIUnescapeString(URL, 0, NULL); + if (unescaped != NULL) { + xmlNanoFTPScanURL(ret, unescaped); + xmlFree(unescaped); + } else if (URL != NULL) + xmlNanoFTPScanURL(ret, URL); + + return(ret); +} + +/** + * xmlNanoFTPFreeCtxt: + * @ctx: an FTP context + * + * Frees the context after closing the connection. + */ + +void +xmlNanoFTPFreeCtxt(void * ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + if (ctxt == NULL) return; + if (ctxt->hostname != NULL) xmlFree(ctxt->hostname); + if (ctxt->protocol != NULL) xmlFree(ctxt->protocol); + if (ctxt->path != NULL) xmlFree(ctxt->path); if (ctxt->user != NULL) xmlFree(ctxt->user); if (ctxt->passwd != NULL) xmlFree(ctxt->passwd); - ctxt->passive = 1; - if (ctxt->controlFd != INVALID_SOCKET) closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - ctxt->controlBufIndex = -1; - ctxt->controlBufUsed = -1; - xmlFree(ctxt); -} - -/** - * xmlNanoFTPParseResponse: - * @buf: the buffer containing the response - * @len: the buffer length - * - * Parsing of the server answer, we just extract the code. - * - * returns 0 for errors - * +XXX for last line of response - * -XXX for response to be continued - */ -static int -xmlNanoFTPParseResponse(char *buf, int len) { - int val = 0; - - if (len < 3) return(-1); - if ((*buf >= '0') && (*buf <= '9')) - val = val * 10 + (*buf - '0'); - else - return(0); - buf++; - if ((*buf >= '0') && (*buf <= '9')) - val = val * 10 + (*buf - '0'); - else - return(0); - buf++; - if ((*buf >= '0') && (*buf <= '9')) - val = val * 10 + (*buf - '0'); - else - return(0); - buf++; - if (*buf == '-') - return(-val); - return(val); -} - -/** - * xmlNanoFTPGetMore: - * @ctx: an FTP context - * - * Read more information from the FTP control connection - * Returns the number of bytes read, < 0 indicates an error - */ -static int -xmlNanoFTPGetMore(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - int len; - int size; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - - if ((ctxt->controlBufIndex < 0) || (ctxt->controlBufIndex > FTP_BUF_SIZE)) { -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPGetMore : controlBufIndex = %d\n", - ctxt->controlBufIndex); -#endif - return(-1); - } - - if ((ctxt->controlBufUsed < 0) || (ctxt->controlBufUsed > FTP_BUF_SIZE)) { -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPGetMore : controlBufUsed = %d\n", - ctxt->controlBufUsed); -#endif - return(-1); - } - if (ctxt->controlBufIndex > ctxt->controlBufUsed) { -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPGetMore : controlBufIndex > controlBufUsed %d > %d\n", - ctxt->controlBufIndex, ctxt->controlBufUsed); -#endif - return(-1); - } - - /* - * First pack the control buffer - */ - if (ctxt->controlBufIndex > 0) { - memmove(&ctxt->controlBuf[0], &ctxt->controlBuf[ctxt->controlBufIndex], - ctxt->controlBufUsed - ctxt->controlBufIndex); - ctxt->controlBufUsed -= ctxt->controlBufIndex; - ctxt->controlBufIndex = 0; - } - size = FTP_BUF_SIZE - ctxt->controlBufUsed; - if (size == 0) { -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPGetMore : buffer full %d \n", ctxt->controlBufUsed); -#endif - return(0); - } - - /* - * Read the amount left on the control connection - */ - if ((len = recv(ctxt->controlFd, &ctxt->controlBuf[ctxt->controlBufIndex], - size, 0)) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPGetMore : read %d [%d - %d]\n", len, - ctxt->controlBufUsed, ctxt->controlBufUsed + len); -#endif - ctxt->controlBufUsed += len; - ctxt->controlBuf[ctxt->controlBufUsed] = 0; - - return(len); -} - -/** - * xmlNanoFTPReadResponse: - * @ctx: an FTP context - * - * Read the response from the FTP server after a command. - * Returns the code number - */ -static int -xmlNanoFTPReadResponse(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char *ptr, *end; - int len; - int res = -1, cur = -1; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - -get_more: - /* - * Assumes everything up to controlBuf[controlBufIndex] has been read - * and analyzed. - */ - len = xmlNanoFTPGetMore(ctx); - if (len < 0) { - return(-1); - } - if ((ctxt->controlBufUsed == 0) && (len == 0)) { - return(-1); - } - ptr = &ctxt->controlBuf[ctxt->controlBufIndex]; - end = &ctxt->controlBuf[ctxt->controlBufUsed]; - -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "\n<<<\n%s\n--\n", ptr); -#endif - while (ptr < end) { - cur = xmlNanoFTPParseResponse(ptr, end - ptr); - if (cur > 0) { - /* - * Successfully scanned the control code, scratch - * till the end of the line, but keep the index to be - * able to analyze the result if needed. - */ - res = cur; - ptr += 3; - ctxt->controlBufAnswer = ptr - ctxt->controlBuf; - while ((ptr < end) && (*ptr != '\n')) ptr++; - if (*ptr == '\n') ptr++; - if (*ptr == '\r') ptr++; - break; - } - while ((ptr < end) && (*ptr != '\n')) ptr++; - if (ptr >= end) { - ctxt->controlBufIndex = ctxt->controlBufUsed; - goto get_more; - } - if (*ptr != '\r') ptr++; - } - - if (res < 0) goto get_more; - ctxt->controlBufIndex = ptr - ctxt->controlBuf; -#ifdef DEBUG_FTP - ptr = &ctxt->controlBuf[ctxt->controlBufIndex]; - xmlGenericError(xmlGenericErrorContext, "\n---\n%s\n--\n", ptr); -#endif - -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "Got %d\n", res); -#endif - return(res / 100); -} - -/** - * xmlNanoFTPGetResponse: - * @ctx: an FTP context - * - * Get the response from the FTP server after a command. - * Returns the code number - */ - -int -xmlNanoFTPGetResponse(void *ctx) { - int res; - - res = xmlNanoFTPReadResponse(ctx); - - return(res); -} - -/** - * xmlNanoFTPCheckResponse: - * @ctx: an FTP context - * - * Check if there is a response from the FTP server after a command. - * Returns the code number, or 0 - */ - -int -xmlNanoFTPCheckResponse(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - fd_set rfd; - struct timeval tv; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - tv.tv_sec = 0; - tv.tv_usec = 0; - FD_ZERO(&rfd); - FD_SET(ctxt->controlFd, &rfd); - switch(select(ctxt->controlFd + 1, &rfd, NULL, NULL, &tv)) { - case 0: - return(0); - case -1: - __xmlIOErr(XML_FROM_FTP, 0, "select"); - return(-1); - - } - - return(xmlNanoFTPReadResponse(ctx)); -} - -/** - * Send the user authentication - */ - -static int -xmlNanoFTPSendUser(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[200]; - int len; - int res; - - if (ctxt->user == NULL) - snprintf(buf, sizeof(buf), "USER anonymous\r\n"); - else - snprintf(buf, sizeof(buf), "USER %s\r\n", ctxt->user); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - return(res); - } - return(0); -} - -/** - * Send the password authentication - */ - -static int -xmlNanoFTPSendPasswd(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[200]; - int len; - int res; - - if (ctxt->passwd == NULL) - snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); - else - snprintf(buf, sizeof(buf), "PASS %s\r\n", ctxt->passwd); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - return(res); - } - return(0); -} - -/** - * xmlNanoFTPQuit: - * @ctx: an FTP context - * - * Send a QUIT command to the server - * - * Returns -1 in case of error, 0 otherwise - */ - - -int -xmlNanoFTPQuit(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[200]; - int len, res; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - - snprintf(buf, sizeof(buf), "QUIT\r\n"); - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); /* Just to be consistent, even though we know it can't have a % in it */ -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - return(res); - } - return(0); -} - -/** - * xmlNanoFTPConnect: - * @ctx: an FTP context - * - * Tries to open a control connection - * - * Returns -1 in case of error, 0 otherwise - */ - -int -xmlNanoFTPConnect(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - struct hostent *hp; - int port; - int res; - int addrlen = sizeof (struct sockaddr_in); - - if (ctxt == NULL) - return(-1); - if (ctxt->hostname == NULL) - return(-1); - - /* - * do the blocking DNS query. - */ - if (proxy) { - port = proxyPort; - } else { - port = ctxt->port; - } - if (port == 0) - port = 21; - - memset (&ctxt->ftpAddr, 0, sizeof(ctxt->ftpAddr)); - -#ifdef SUPPORT_IP6 - if (have_ipv6 ()) { - struct addrinfo hints, *tmp, *result; - - result = NULL; - memset (&hints, 0, sizeof(hints)); - hints.ai_socktype = SOCK_STREAM; - - if (proxy) { - if (getaddrinfo (proxy, NULL, &hints, &result) != 0) { - __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); - return (-1); - } - } - else - if (getaddrinfo (ctxt->hostname, NULL, &hints, &result) != 0) { - __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); - return (-1); - } - - for (tmp = result; tmp; tmp = tmp->ai_next) - if (tmp->ai_family == AF_INET || tmp->ai_family == AF_INET6) - break; - - if (!tmp) { - if (result) - freeaddrinfo (result); - __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); - return (-1); - } + ctxt->passive = 1; + if (ctxt->controlFd != INVALID_SOCKET) closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + ctxt->controlBufIndex = -1; + ctxt->controlBufUsed = -1; + xmlFree(ctxt); +} + +/** + * xmlNanoFTPParseResponse: + * @buf: the buffer containing the response + * @len: the buffer length + * + * Parsing of the server answer, we just extract the code. + * + * returns 0 for errors + * +XXX for last line of response + * -XXX for response to be continued + */ +static int +xmlNanoFTPParseResponse(char *buf, int len) { + int val = 0; + + if (len < 3) return(-1); + if ((*buf >= '0') && (*buf <= '9')) + val = val * 10 + (*buf - '0'); + else + return(0); + buf++; + if ((*buf >= '0') && (*buf <= '9')) + val = val * 10 + (*buf - '0'); + else + return(0); + buf++; + if ((*buf >= '0') && (*buf <= '9')) + val = val * 10 + (*buf - '0'); + else + return(0); + buf++; + if (*buf == '-') + return(-val); + return(val); +} + +/** + * xmlNanoFTPGetMore: + * @ctx: an FTP context + * + * Read more information from the FTP control connection + * Returns the number of bytes read, < 0 indicates an error + */ +static int +xmlNanoFTPGetMore(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + int len; + int size; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + + if ((ctxt->controlBufIndex < 0) || (ctxt->controlBufIndex > FTP_BUF_SIZE)) { +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPGetMore : controlBufIndex = %d\n", + ctxt->controlBufIndex); +#endif + return(-1); + } + + if ((ctxt->controlBufUsed < 0) || (ctxt->controlBufUsed > FTP_BUF_SIZE)) { +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPGetMore : controlBufUsed = %d\n", + ctxt->controlBufUsed); +#endif + return(-1); + } + if (ctxt->controlBufIndex > ctxt->controlBufUsed) { +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPGetMore : controlBufIndex > controlBufUsed %d > %d\n", + ctxt->controlBufIndex, ctxt->controlBufUsed); +#endif + return(-1); + } + + /* + * First pack the control buffer + */ + if (ctxt->controlBufIndex > 0) { + memmove(&ctxt->controlBuf[0], &ctxt->controlBuf[ctxt->controlBufIndex], + ctxt->controlBufUsed - ctxt->controlBufIndex); + ctxt->controlBufUsed -= ctxt->controlBufIndex; + ctxt->controlBufIndex = 0; + } + size = FTP_BUF_SIZE - ctxt->controlBufUsed; + if (size == 0) { +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPGetMore : buffer full %d \n", ctxt->controlBufUsed); +#endif + return(0); + } + + /* + * Read the amount left on the control connection + */ + if ((len = recv(ctxt->controlFd, &ctxt->controlBuf[ctxt->controlBufIndex], + size, 0)) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPGetMore : read %d [%d - %d]\n", len, + ctxt->controlBufUsed, ctxt->controlBufUsed + len); +#endif + ctxt->controlBufUsed += len; + ctxt->controlBuf[ctxt->controlBufUsed] = 0; + + return(len); +} + +/** + * xmlNanoFTPReadResponse: + * @ctx: an FTP context + * + * Read the response from the FTP server after a command. + * Returns the code number + */ +static int +xmlNanoFTPReadResponse(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char *ptr, *end; + int len; + int res = -1, cur = -1; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + +get_more: + /* + * Assumes everything up to controlBuf[controlBufIndex] has been read + * and analyzed. + */ + len = xmlNanoFTPGetMore(ctx); + if (len < 0) { + return(-1); + } + if ((ctxt->controlBufUsed == 0) && (len == 0)) { + return(-1); + } + ptr = &ctxt->controlBuf[ctxt->controlBufIndex]; + end = &ctxt->controlBuf[ctxt->controlBufUsed]; + +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "\n<<<\n%s\n--\n", ptr); +#endif + while (ptr < end) { + cur = xmlNanoFTPParseResponse(ptr, end - ptr); + if (cur > 0) { + /* + * Successfully scanned the control code, scratch + * till the end of the line, but keep the index to be + * able to analyze the result if needed. + */ + res = cur; + ptr += 3; + ctxt->controlBufAnswer = ptr - ctxt->controlBuf; + while ((ptr < end) && (*ptr != '\n')) ptr++; + if (*ptr == '\n') ptr++; + if (*ptr == '\r') ptr++; + break; + } + while ((ptr < end) && (*ptr != '\n')) ptr++; + if (ptr >= end) { + ctxt->controlBufIndex = ctxt->controlBufUsed; + goto get_more; + } + if (*ptr != '\r') ptr++; + } + + if (res < 0) goto get_more; + ctxt->controlBufIndex = ptr - ctxt->controlBuf; +#ifdef DEBUG_FTP + ptr = &ctxt->controlBuf[ctxt->controlBufIndex]; + xmlGenericError(xmlGenericErrorContext, "\n---\n%s\n--\n", ptr); +#endif + +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "Got %d\n", res); +#endif + return(res / 100); +} + +/** + * xmlNanoFTPGetResponse: + * @ctx: an FTP context + * + * Get the response from the FTP server after a command. + * Returns the code number + */ + +int +xmlNanoFTPGetResponse(void *ctx) { + int res; + + res = xmlNanoFTPReadResponse(ctx); + + return(res); +} + +/** + * xmlNanoFTPCheckResponse: + * @ctx: an FTP context + * + * Check if there is a response from the FTP server after a command. + * Returns the code number, or 0 + */ + +int +xmlNanoFTPCheckResponse(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + fd_set rfd; + struct timeval tv; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + tv.tv_sec = 0; + tv.tv_usec = 0; + FD_ZERO(&rfd); + FD_SET(ctxt->controlFd, &rfd); + switch(select(ctxt->controlFd + 1, &rfd, NULL, NULL, &tv)) { + case 0: + return(0); + case -1: + __xmlIOErr(XML_FROM_FTP, 0, "select"); + return(-1); + + } + + return(xmlNanoFTPReadResponse(ctx)); +} + +/** + * Send the user authentication + */ + +static int +xmlNanoFTPSendUser(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[200]; + int len; + int res; + + if (ctxt->user == NULL) + snprintf(buf, sizeof(buf), "USER anonymous\r\n"); + else + snprintf(buf, sizeof(buf), "USER %s\r\n", ctxt->user); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + return(res); + } + return(0); +} + +/** + * Send the password authentication + */ + +static int +xmlNanoFTPSendPasswd(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[200]; + int len; + int res; + + if (ctxt->passwd == NULL) + snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); + else + snprintf(buf, sizeof(buf), "PASS %s\r\n", ctxt->passwd); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + return(res); + } + return(0); +} + +/** + * xmlNanoFTPQuit: + * @ctx: an FTP context + * + * Send a QUIT command to the server + * + * Returns -1 in case of error, 0 otherwise + */ + + +int +xmlNanoFTPQuit(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[200]; + int len, res; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + + snprintf(buf, sizeof(buf), "QUIT\r\n"); + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); /* Just to be consistent, even though we know it can't have a % in it */ +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + return(res); + } + return(0); +} + +/** + * xmlNanoFTPConnect: + * @ctx: an FTP context + * + * Tries to open a control connection + * + * Returns -1 in case of error, 0 otherwise + */ + +int +xmlNanoFTPConnect(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + struct hostent *hp; + int port; + int res; + int addrlen = sizeof (struct sockaddr_in); + + if (ctxt == NULL) + return(-1); + if (ctxt->hostname == NULL) + return(-1); + + /* + * do the blocking DNS query. + */ + if (proxy) { + port = proxyPort; + } else { + port = ctxt->port; + } + if (port == 0) + port = 21; + + memset (&ctxt->ftpAddr, 0, sizeof(ctxt->ftpAddr)); + +#ifdef SUPPORT_IP6 + if (have_ipv6 ()) { + struct addrinfo hints, *tmp, *result; + + result = NULL; + memset (&hints, 0, sizeof(hints)); + hints.ai_socktype = SOCK_STREAM; + + if (proxy) { + if (getaddrinfo (proxy, NULL, &hints, &result) != 0) { + __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); + return (-1); + } + } + else + if (getaddrinfo (ctxt->hostname, NULL, &hints, &result) != 0) { + __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); + return (-1); + } + + for (tmp = result; tmp; tmp = tmp->ai_next) + if (tmp->ai_family == AF_INET || tmp->ai_family == AF_INET6) + break; + + if (!tmp) { + if (result) + freeaddrinfo (result); + __xmlIOErr(XML_FROM_FTP, 0, "getaddrinfo failed"); + return (-1); + } if ((size_t)tmp->ai_addrlen > sizeof(ctxt->ftpAddr)) { - if (result) - freeaddrinfo (result); - __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname address mismatch"); - return (-1); - } - if (tmp->ai_family == AF_INET6) { - memcpy (&ctxt->ftpAddr, tmp->ai_addr, tmp->ai_addrlen); - ((struct sockaddr_in6 *) &ctxt->ftpAddr)->sin6_port = htons (port); - ctxt->controlFd = socket (AF_INET6, SOCK_STREAM, 0); - } - else { - memcpy (&ctxt->ftpAddr, tmp->ai_addr, tmp->ai_addrlen); - ((struct sockaddr_in *) &ctxt->ftpAddr)->sin_port = htons (port); - ctxt->controlFd = socket (AF_INET, SOCK_STREAM, 0); - } - addrlen = tmp->ai_addrlen; - freeaddrinfo (result); - } - else -#endif - { - if (proxy) - hp = gethostbyname (GETHOSTBYNAME_ARG_CAST proxy); - else - hp = gethostbyname (GETHOSTBYNAME_ARG_CAST ctxt->hostname); - if (hp == NULL) { - __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname failed"); - return (-1); - } - if ((unsigned int) hp->h_length > - sizeof(((struct sockaddr_in *)&ctxt->ftpAddr)->sin_addr)) { - __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname address mismatch"); - return (-1); - } - - /* - * Prepare the socket - */ - ((struct sockaddr_in *)&ctxt->ftpAddr)->sin_family = AF_INET; - memcpy (&((struct sockaddr_in *)&ctxt->ftpAddr)->sin_addr, - hp->h_addr_list[0], hp->h_length); - ((struct sockaddr_in *)&ctxt->ftpAddr)->sin_port = - (unsigned short)htons ((unsigned short)port); - ctxt->controlFd = socket (AF_INET, SOCK_STREAM, 0); - addrlen = sizeof (struct sockaddr_in); - } - - if (ctxt->controlFd == INVALID_SOCKET) { - __xmlIOErr(XML_FROM_FTP, 0, "socket failed"); - return(-1); - } - - /* - * Do the connect. - */ - if (connect(ctxt->controlFd, (struct sockaddr *) &ctxt->ftpAddr, - addrlen) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "Failed to create a connection"); - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - - /* - * Wait for the HELLO from the server. - */ - res = xmlNanoFTPGetResponse(ctxt); - if (res != 2) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - - /* - * State diagram for the login operation on the FTP server - * - * Reference: RFC 959 - * - * 1 - * +---+ USER +---+------------->+---+ - * | B |---------->| W | 2 ---->| E | - * +---+ +---+------ | -->+---+ - * | | | | | - * 3 | | 4,5 | | | - * -------------- ----- | | | - * | | | | | - * | | | | | - * | --------- | - * | 1| | | | - * V | | | | - * +---+ PASS +---+ 2 | ------>+---+ - * | |---------->| W |------------->| S | - * +---+ +---+ ---------->+---+ - * | | | | | - * 3 | |4,5| | | - * -------------- -------- | - * | | | | | - * | | | | | - * | ----------- - * | 1,3| | | | - * V | 2| | | - * +---+ ACCT +---+-- | ----->+---+ - * | |---------->| W | 4,5 -------->| F | - * +---+ +---+------------->+---+ - * - * Of course in case of using a proxy this get really nasty and is not - * standardized at all :-( - */ - if (proxy) { - int len; - char buf[400]; - - if (proxyUser != NULL) { - /* - * We need proxy auth - */ - snprintf(buf, sizeof(buf), "USER %s\r\n", proxyUser); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - switch (res) { - case 2: - if (proxyPasswd == NULL) - break; + if (result) + freeaddrinfo (result); + __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname address mismatch"); + return (-1); + } + if (tmp->ai_family == AF_INET6) { + memcpy (&ctxt->ftpAddr, tmp->ai_addr, tmp->ai_addrlen); + ((struct sockaddr_in6 *) &ctxt->ftpAddr)->sin6_port = htons (port); + ctxt->controlFd = socket (AF_INET6, SOCK_STREAM, 0); + } + else { + memcpy (&ctxt->ftpAddr, tmp->ai_addr, tmp->ai_addrlen); + ((struct sockaddr_in *) &ctxt->ftpAddr)->sin_port = htons (port); + ctxt->controlFd = socket (AF_INET, SOCK_STREAM, 0); + } + addrlen = tmp->ai_addrlen; + freeaddrinfo (result); + } + else +#endif + { + if (proxy) + hp = gethostbyname (GETHOSTBYNAME_ARG_CAST proxy); + else + hp = gethostbyname (GETHOSTBYNAME_ARG_CAST ctxt->hostname); + if (hp == NULL) { + __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname failed"); + return (-1); + } + if ((unsigned int) hp->h_length > + sizeof(((struct sockaddr_in *)&ctxt->ftpAddr)->sin_addr)) { + __xmlIOErr(XML_FROM_FTP, 0, "gethostbyname address mismatch"); + return (-1); + } + + /* + * Prepare the socket + */ + ((struct sockaddr_in *)&ctxt->ftpAddr)->sin_family = AF_INET; + memcpy (&((struct sockaddr_in *)&ctxt->ftpAddr)->sin_addr, + hp->h_addr_list[0], hp->h_length); + ((struct sockaddr_in *)&ctxt->ftpAddr)->sin_port = + (unsigned short)htons ((unsigned short)port); + ctxt->controlFd = socket (AF_INET, SOCK_STREAM, 0); + addrlen = sizeof (struct sockaddr_in); + } + + if (ctxt->controlFd == INVALID_SOCKET) { + __xmlIOErr(XML_FROM_FTP, 0, "socket failed"); + return(-1); + } + + /* + * Do the connect. + */ + if (connect(ctxt->controlFd, (struct sockaddr *) &ctxt->ftpAddr, + addrlen) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "Failed to create a connection"); + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + + /* + * Wait for the HELLO from the server. + */ + res = xmlNanoFTPGetResponse(ctxt); + if (res != 2) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + + /* + * State diagram for the login operation on the FTP server + * + * Reference: RFC 959 + * + * 1 + * +---+ USER +---+------------->+---+ + * | B |---------->| W | 2 ---->| E | + * +---+ +---+------ | -->+---+ + * | | | | | + * 3 | | 4,5 | | | + * -------------- ----- | | | + * | | | | | + * | | | | | + * | --------- | + * | 1| | | | + * V | | | | + * +---+ PASS +---+ 2 | ------>+---+ + * | |---------->| W |------------->| S | + * +---+ +---+ ---------->+---+ + * | | | | | + * 3 | |4,5| | | + * -------------- -------- | + * | | | | | + * | | | | | + * | ----------- + * | 1,3| | | | + * V | 2| | | + * +---+ ACCT +---+-- | ----->+---+ + * | |---------->| W | 4,5 -------->| F | + * +---+ +---+------------->+---+ + * + * Of course in case of using a proxy this get really nasty and is not + * standardized at all :-( + */ + if (proxy) { + int len; + char buf[400]; + + if (proxyUser != NULL) { + /* + * We need proxy auth + */ + snprintf(buf, sizeof(buf), "USER %s\r\n", proxyUser); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + switch (res) { + case 2: + if (proxyPasswd == NULL) + break; /* Falls through. */ - case 3: - if (proxyPasswd != NULL) - snprintf(buf, sizeof(buf), "PASS %s\r\n", proxyPasswd); - else - snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if (res > 3) { - closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - break; - case 1: - break; - case 4: - case 5: - case -1: - default: - closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - } - - /* - * We assume we don't need more authentication to the proxy - * and that it succeeded :-\ - */ - switch (proxyType) { - case 0: - /* we will try in sequence */ - case 1: - /* Using SITE command */ - snprintf(buf, sizeof(buf), "SITE %s\r\n", ctxt->hostname); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if (res == 2) { - /* we assume it worked :-\ 1 is error for SITE command */ - proxyType = 1; - break; - } - if (proxyType == 1) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } + case 3: + if (proxyPasswd != NULL) + snprintf(buf, sizeof(buf), "PASS %s\r\n", proxyPasswd); + else + snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if (res > 3) { + closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + break; + case 1: + break; + case 4: + case 5: + case -1: + default: + closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + } + + /* + * We assume we don't need more authentication to the proxy + * and that it succeeded :-\ + */ + switch (proxyType) { + case 0: + /* we will try in sequence */ + case 1: + /* Using SITE command */ + snprintf(buf, sizeof(buf), "SITE %s\r\n", ctxt->hostname); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if (res == 2) { + /* we assume it worked :-\ 1 is error for SITE command */ + proxyType = 1; + break; + } + if (proxyType == 1) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } /* Falls through. */ - case 2: - /* USER user@host command */ - if (ctxt->user == NULL) - snprintf(buf, sizeof(buf), "USER anonymous@%s\r\n", - ctxt->hostname); - else - snprintf(buf, sizeof(buf), "USER %s@%s\r\n", - ctxt->user, ctxt->hostname); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if ((res == 1) || (res == 2)) { - /* we assume it worked :-\ */ - proxyType = 2; - return(0); - } - if (ctxt->passwd == NULL) - snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); - else - snprintf(buf, sizeof(buf), "PASS %s\r\n", ctxt->passwd); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if ((res == 1) || (res == 2)) { - /* we assume it worked :-\ */ - proxyType = 2; - return(0); - } - if (proxyType == 2) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } + case 2: + /* USER user@host command */ + if (ctxt->user == NULL) + snprintf(buf, sizeof(buf), "USER anonymous@%s\r\n", + ctxt->hostname); + else + snprintf(buf, sizeof(buf), "USER %s@%s\r\n", + ctxt->user, ctxt->hostname); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if ((res == 1) || (res == 2)) { + /* we assume it worked :-\ */ + proxyType = 2; + return(0); + } + if (ctxt->passwd == NULL) + snprintf(buf, sizeof(buf), "PASS anonymous@\r\n"); + else + snprintf(buf, sizeof(buf), "PASS %s\r\n", ctxt->passwd); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if ((res == 1) || (res == 2)) { + /* we assume it worked :-\ */ + proxyType = 2; + return(0); + } + if (proxyType == 2) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } /* Falls through. */ - case 3: - /* - * If you need support for other Proxy authentication scheme - * send the code or at least the sequence in use. - */ - default: - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - } - /* - * Non-proxy handling. - */ - res = xmlNanoFTPSendUser(ctxt); - if (res < 0) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - res = xmlNanoFTPGetResponse(ctxt); - switch (res) { - case 2: - return(0); - case 3: - break; - case 1: - case 4: - case 5: - case -1: - default: - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - res = xmlNanoFTPSendPasswd(ctxt); - if (res < 0) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - res = xmlNanoFTPGetResponse(ctxt); - switch (res) { - case 2: - break; - case 3: - __xmlIOErr(XML_FROM_FTP, XML_FTP_ACCNT, - "FTP server asking for ACCNT on anonymous\n"); + case 3: + /* + * If you need support for other Proxy authentication scheme + * send the code or at least the sequence in use. + */ + default: + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + } + /* + * Non-proxy handling. + */ + res = xmlNanoFTPSendUser(ctxt); + if (res < 0) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + res = xmlNanoFTPGetResponse(ctxt); + switch (res) { + case 2: + return(0); + case 3: + break; + case 1: + case 4: + case 5: + case -1: + default: + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + res = xmlNanoFTPSendPasswd(ctxt); + if (res < 0) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + res = xmlNanoFTPGetResponse(ctxt); + switch (res) { + case 2: + break; + case 3: + __xmlIOErr(XML_FROM_FTP, XML_FTP_ACCNT, + "FTP server asking for ACCNT on anonymous\n"); /* Falls through. */ - case 1: - case 4: - case 5: - case -1: - default: - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - - return(0); -} - -/** - * xmlNanoFTPConnectTo: - * @server: an FTP server name - * @port: the port (use 21 if 0) - * - * Tries to open a control connection to the given server/port - * - * Returns an fTP context or NULL if it failed - */ - -void* -xmlNanoFTPConnectTo(const char *server, int port) { - xmlNanoFTPCtxtPtr ctxt; - int res; - - xmlNanoFTPInit(); - if (server == NULL) - return(NULL); - if (port <= 0) - return(NULL); - ctxt = (xmlNanoFTPCtxtPtr) xmlNanoFTPNewCtxt(NULL); - if (ctxt == NULL) - return(NULL); - ctxt->hostname = xmlMemStrdup(server); - if (ctxt->hostname == NULL) { - xmlNanoFTPFreeCtxt(ctxt); - return(NULL); - } - if (port != 0) - ctxt->port = port; - res = xmlNanoFTPConnect(ctxt); - if (res < 0) { - xmlNanoFTPFreeCtxt(ctxt); - return(NULL); - } - return(ctxt); -} - -/** - * xmlNanoFTPCwd: - * @ctx: an FTP context - * @directory: a directory on the server - * - * Tries to change the remote directory - * - * Returns -1 incase of error, 1 if CWD worked, 0 if it failed - */ - -int -xmlNanoFTPCwd(void *ctx, const char *directory) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[400]; - int len; - int res; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - if (directory == NULL) return 0; - - /* - * Expected response code for CWD: - * - * CWD - * 250 - * 500, 501, 502, 421, 530, 550 - */ - snprintf(buf, sizeof(buf), "CWD %s\r\n", directory); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if (res == 4) { - return(-1); - } - if (res == 2) return(1); - if (res == 5) { - return(0); - } - return(0); -} - -/** - * xmlNanoFTPDele: - * @ctx: an FTP context - * @file: a file or directory on the server - * - * Tries to delete an item (file or directory) from server - * - * Returns -1 incase of error, 1 if DELE worked, 0 if it failed - */ - -int -xmlNanoFTPDele(void *ctx, const char *file) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[400]; - int len; - int res; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET) || - (file == NULL)) return(-1); - - /* - * Expected response code for DELE: - * - * DELE - * 250 - * 450, 550 - * 500, 501, 502, 421, 530 - */ - - snprintf(buf, sizeof(buf), "DELE %s\r\n", file); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - return(res); - } - res = xmlNanoFTPGetResponse(ctxt); - if (res == 4) { - return(-1); - } - if (res == 2) return(1); - if (res == 5) { - return(0); - } - return(0); -} -/** - * xmlNanoFTPGetConnection: - * @ctx: an FTP context - * - * Try to open a data connection to the server. Currently only - * passive mode is supported. - * - * Returns -1 incase of error, 0 otherwise - */ - -SOCKET -xmlNanoFTPGetConnection(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[200], *cur; - int len, i; - int res; - unsigned char ad[6], *adp, *portp; - unsigned int temp[6]; -#ifdef SUPPORT_IP6 - struct sockaddr_storage dataAddr; -#else - struct sockaddr_in dataAddr; -#endif - XML_SOCKLEN_T dataAddrLen; - - if (ctxt == NULL) return INVALID_SOCKET; - - memset (&dataAddr, 0, sizeof(dataAddr)); -#ifdef SUPPORT_IP6 - if ((ctxt->ftpAddr).ss_family == AF_INET6) { - ctxt->dataFd = socket (AF_INET6, SOCK_STREAM, IPPROTO_TCP); - ((struct sockaddr_in6 *)&dataAddr)->sin6_family = AF_INET6; - dataAddrLen = sizeof(struct sockaddr_in6); - } else -#endif - { - ctxt->dataFd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP); - ((struct sockaddr_in *)&dataAddr)->sin_family = AF_INET; - dataAddrLen = sizeof (struct sockaddr_in); - } - - if (ctxt->dataFd == INVALID_SOCKET) { - __xmlIOErr(XML_FROM_FTP, 0, "socket failed"); - return INVALID_SOCKET; - } - - if (ctxt->passive) { -#ifdef SUPPORT_IP6 - if ((ctxt->ftpAddr).ss_family == AF_INET6) - snprintf (buf, sizeof(buf), "EPSV\r\n"); - else -#endif - snprintf (buf, sizeof(buf), "PASV\r\n"); - len = strlen (buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - res = xmlNanoFTPReadResponse(ctx); - if (res != 2) { - if (res == 5) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } else { - /* - * retry with an active connection - */ - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - ctxt->passive = 0; - } - } - cur = &ctxt->controlBuf[ctxt->controlBufAnswer]; - while (((*cur < '0') || (*cur > '9')) && *cur != '\0') cur++; -#ifdef SUPPORT_IP6 - if ((ctxt->ftpAddr).ss_family == AF_INET6) { - if (sscanf (cur, "%u", &temp[0]) != 1) { - __xmlIOErr(XML_FROM_FTP, XML_FTP_EPSV_ANSWER, - "Invalid answer to EPSV\n"); - if (ctxt->dataFd != INVALID_SOCKET) { - closesocket (ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - } - return INVALID_SOCKET; - } - memcpy (&((struct sockaddr_in6 *)&dataAddr)->sin6_addr, &((struct sockaddr_in6 *)&ctxt->ftpAddr)->sin6_addr, sizeof(struct in6_addr)); - ((struct sockaddr_in6 *)&dataAddr)->sin6_port = htons (temp[0]); - } - else -#endif - { - if (sscanf (cur, "%u,%u,%u,%u,%u,%u", &temp[0], &temp[1], &temp[2], - &temp[3], &temp[4], &temp[5]) != 6) { - __xmlIOErr(XML_FROM_FTP, XML_FTP_PASV_ANSWER, - "Invalid answer to PASV\n"); - if (ctxt->dataFd != INVALID_SOCKET) { - closesocket (ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - } - return INVALID_SOCKET; - } - for (i=0; i<6; i++) ad[i] = (unsigned char) (temp[i] & 0xff); - memcpy (&((struct sockaddr_in *)&dataAddr)->sin_addr, &ad[0], 4); - memcpy (&((struct sockaddr_in *)&dataAddr)->sin_port, &ad[4], 2); - } - - if (connect(ctxt->dataFd, (struct sockaddr *) &dataAddr, dataAddrLen) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "Failed to create a data connection"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - } else { - getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, &dataAddrLen); -#ifdef SUPPORT_IP6 - if ((ctxt->ftpAddr).ss_family == AF_INET6) - ((struct sockaddr_in6 *)&dataAddr)->sin6_port = 0; - else -#endif - ((struct sockaddr_in *)&dataAddr)->sin_port = 0; - - if (bind(ctxt->dataFd, (struct sockaddr *) &dataAddr, dataAddrLen) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "bind failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, &dataAddrLen); - - if (listen(ctxt->dataFd, 1) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "listen failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } -#ifdef SUPPORT_IP6 - if ((ctxt->ftpAddr).ss_family == AF_INET6) { - char buf6[INET6_ADDRSTRLEN]; - inet_ntop (AF_INET6, &((struct sockaddr_in6 *)&dataAddr)->sin6_addr, - buf6, INET6_ADDRSTRLEN); - adp = (unsigned char *) buf6; - portp = (unsigned char *) &((struct sockaddr_in6 *)&dataAddr)->sin6_port; - snprintf (buf, sizeof(buf), "EPRT |2|%s|%s|\r\n", adp, portp); - } else -#endif - { - adp = (unsigned char *) &((struct sockaddr_in *)&dataAddr)->sin_addr; - portp = (unsigned char *) &((struct sockaddr_in *)&dataAddr)->sin_port; - snprintf (buf, sizeof(buf), "PORT %d,%d,%d,%d,%d,%d\r\n", - adp[0] & 0xff, adp[1] & 0xff, adp[2] & 0xff, adp[3] & 0xff, - portp[0] & 0xff, portp[1] & 0xff); - } - - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - res = xmlNanoFTPGetResponse(ctxt); - if (res != 2) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - } - return(ctxt->dataFd); - -} - -/** - * xmlNanoFTPCloseConnection: - * @ctx: an FTP context - * - * Close the data connection from the server - * - * Returns -1 incase of error, 0 otherwise - */ - -int -xmlNanoFTPCloseConnection(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - int res; - fd_set rfd, efd; - struct timeval tv; - - if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); - - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - tv.tv_sec = 15; - tv.tv_usec = 0; - FD_ZERO(&rfd); - FD_SET(ctxt->controlFd, &rfd); - FD_ZERO(&efd); - FD_SET(ctxt->controlFd, &efd); - res = select(ctxt->controlFd + 1, &rfd, NULL, &efd, &tv); - if (res < 0) { -#ifdef DEBUG_FTP - perror("select"); -#endif - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - if (res == 0) { -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, - "xmlNanoFTPCloseConnection: timeout\n"); -#endif - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - } else { - res = xmlNanoFTPGetResponse(ctxt); - if (res != 2) { - closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; - return(-1); - } - } - return(0); -} - -/** - * xmlNanoFTPParseList: - * @list: some data listing received from the server - * @callback: the user callback - * @userData: the user callback data - * - * Parse at most one entry from the listing. - * - * Returns -1 incase of error, the length of data parsed otherwise - */ - -static int -xmlNanoFTPParseList(const char *list, ftpListCallback callback, void *userData) { - const char *cur = list; - char filename[151]; - char attrib[11]; - char owner[11]; - char group[11]; - char month[4]; - int year = 0; - int minute = 0; - int hour = 0; - int day = 0; - unsigned long size = 0; - int links = 0; - int i; - - if (!strncmp(cur, "total", 5)) { - cur += 5; - while (*cur == ' ') cur++; - while ((*cur >= '0') && (*cur <= '9')) - links = (links * 10) + (*cur++ - '0'); - while ((*cur == ' ') || (*cur == '\n') || (*cur == '\r')) - cur++; - return(cur - list); - } else if (*list == '+') { - return(0); - } else { - while ((*cur == ' ') || (*cur == '\n') || (*cur == '\r')) - cur++; - if (*cur == 0) return(0); - i = 0; - while (*cur != ' ') { - if (i < 10) - attrib[i++] = *cur; - cur++; - if (*cur == 0) return(0); - } - attrib[10] = 0; - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - while ((*cur >= '0') && (*cur <= '9')) - links = (links * 10) + (*cur++ - '0'); - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - i = 0; - while (*cur != ' ') { - if (i < 10) - owner[i++] = *cur; - cur++; - if (*cur == 0) return(0); - } - owner[i] = 0; - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - i = 0; - while (*cur != ' ') { - if (i < 10) - group[i++] = *cur; - cur++; - if (*cur == 0) return(0); - } - group[i] = 0; - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - while ((*cur >= '0') && (*cur <= '9')) - size = (size * 10) + (*cur++ - '0'); - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - i = 0; - while (*cur != ' ') { - if (i < 3) - month[i++] = *cur; - cur++; - if (*cur == 0) return(0); - } - month[i] = 0; - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - while ((*cur >= '0') && (*cur <= '9')) - day = (day * 10) + (*cur++ - '0'); - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - if ((cur[1] == 0) || (cur[2] == 0)) return(0); - if ((cur[1] == ':') || (cur[2] == ':')) { - while ((*cur >= '0') && (*cur <= '9')) - hour = (hour * 10) + (*cur++ - '0'); - if (*cur == ':') cur++; - while ((*cur >= '0') && (*cur <= '9')) - minute = (minute * 10) + (*cur++ - '0'); - } else { - while ((*cur >= '0') && (*cur <= '9')) - year = (year * 10) + (*cur++ - '0'); - } - while (*cur == ' ') cur++; - if (*cur == 0) return(0); - i = 0; - while ((*cur != '\n') && (*cur != '\r')) { - if (i < 150) - filename[i++] = *cur; - cur++; - if (*cur == 0) return(0); - } - filename[i] = 0; - if ((*cur != '\n') && (*cur != '\r')) - return(0); - while ((*cur == '\n') || (*cur == '\r')) - cur++; - } - if (callback != NULL) { - callback(userData, filename, attrib, owner, group, size, links, - year, month, day, hour, minute); - } - return(cur - list); -} - -/** - * xmlNanoFTPList: - * @ctx: an FTP context - * @callback: the user callback - * @userData: the user callback data - * @filename: optional files to list - * - * Do a listing on the server. All files info are passed back - * in the callbacks. - * - * Returns -1 incase of error, 0 otherwise - */ - -int -xmlNanoFTPList(void *ctx, ftpListCallback callback, void *userData, - const char *filename) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[4096 + 1]; - int len, res; - int indx = 0, base; - fd_set rfd, efd; - struct timeval tv; - - if (ctxt == NULL) return (-1); - if (filename == NULL) { - if (xmlNanoFTPCwd(ctxt, ctxt->path) < 1) - return(-1); - ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); - if (ctxt->dataFd == INVALID_SOCKET) - return(-1); - snprintf(buf, sizeof(buf), "LIST -L\r\n"); - } else { - if (filename[0] != '/') { - if (xmlNanoFTPCwd(ctxt, ctxt->path) < 1) - return(-1); - } - ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); - if (ctxt->dataFd == INVALID_SOCKET) - return(-1); - snprintf(buf, sizeof(buf), "LIST -L %s\r\n", filename); - } - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(res); - } - res = xmlNanoFTPReadResponse(ctxt); - if (res != 1) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(-res); - } - - do { - tv.tv_sec = 1; - tv.tv_usec = 0; - FD_ZERO(&rfd); - FD_SET(ctxt->dataFd, &rfd); - FD_ZERO(&efd); - FD_SET(ctxt->dataFd, &efd); - res = select(ctxt->dataFd + 1, &rfd, NULL, &efd, &tv); - if (res < 0) { -#ifdef DEBUG_FTP - perror("select"); -#endif - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(-1); - } - if (res == 0) { - res = xmlNanoFTPCheckResponse(ctxt); - if (res < 0) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - ctxt->dataFd = INVALID_SOCKET; - return(-1); - } - if (res == 2) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(0); - } - - continue; - } - - if ((len = recv(ctxt->dataFd, &buf[indx], sizeof(buf) - (indx + 1), 0)) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "recv"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - ctxt->dataFd = INVALID_SOCKET; - return(-1); - } -#ifdef DEBUG_FTP - write(1, &buf[indx], len); -#endif - indx += len; - buf[indx] = 0; - base = 0; - do { - res = xmlNanoFTPParseList(&buf[base], callback, userData); - base += res; - } while (res > 0); - - memmove(&buf[0], &buf[base], indx - base); - indx -= base; - } while (len != 0); - xmlNanoFTPCloseConnection(ctxt); - return(0); -} - -/** - * xmlNanoFTPGetSocket: - * @ctx: an FTP context - * @filename: the file to retrieve (or NULL if path is in context). - * - * Initiate fetch of the given file from the server. - * - * Returns the socket for the data connection, or <0 in case of error - */ - - -SOCKET -xmlNanoFTPGetSocket(void *ctx, const char *filename) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[300]; - int res, len; - if (ctx == NULL) - return INVALID_SOCKET; - if ((filename == NULL) && (ctxt->path == NULL)) - return INVALID_SOCKET; - ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); - if (ctxt->dataFd == INVALID_SOCKET) - return INVALID_SOCKET; - - snprintf(buf, sizeof(buf), "TYPE I\r\n"); - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - res = xmlNanoFTPReadResponse(ctxt); - if (res != 2) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - if (filename == NULL) - snprintf(buf, sizeof(buf), "RETR %s\r\n", ctxt->path); - else - snprintf(buf, sizeof(buf), "RETR %s\r\n", filename); - buf[sizeof(buf) - 1] = 0; - len = strlen(buf); -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "%s", buf); -#endif - res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); - if (res < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "send failed"); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - res = xmlNanoFTPReadResponse(ctxt); - if (res != 1) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return INVALID_SOCKET; - } - return(ctxt->dataFd); -} - -/** - * xmlNanoFTPGet: - * @ctx: an FTP context - * @callback: the user callback - * @userData: the user callback data - * @filename: the file to retrieve - * - * Fetch the given file from the server. All data are passed back - * in the callbacks. The last callback has a size of 0 block. - * - * Returns -1 incase of error, 0 otherwise - */ - -int -xmlNanoFTPGet(void *ctx, ftpDataCallback callback, void *userData, - const char *filename) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - char buf[4096]; - int len = 0, res; - fd_set rfd; - struct timeval tv; - - if (ctxt == NULL) return(-1); - if ((filename == NULL) && (ctxt->path == NULL)) - return(-1); - if (callback == NULL) - return(-1); - if (xmlNanoFTPGetSocket(ctxt, filename) == INVALID_SOCKET) - return(-1); - - do { - tv.tv_sec = 1; - tv.tv_usec = 0; - FD_ZERO(&rfd); - FD_SET(ctxt->dataFd, &rfd); - res = select(ctxt->dataFd + 1, &rfd, NULL, NULL, &tv); - if (res < 0) { -#ifdef DEBUG_FTP - perror("select"); -#endif - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(-1); - } - if (res == 0) { - res = xmlNanoFTPCheckResponse(ctxt); - if (res < 0) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - ctxt->dataFd = INVALID_SOCKET; - return(-1); - } - if (res == 2) { - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(0); - } - - continue; - } - if ((len = recv(ctxt->dataFd, buf, sizeof(buf), 0)) < 0) { - __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); - callback(userData, buf, len); - closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; - return(-1); - } - callback(userData, buf, len); - } while (len != 0); - - return(xmlNanoFTPCloseConnection(ctxt)); -} - -/** - * xmlNanoFTPRead: - * @ctx: the FTP context - * @dest: a buffer - * @len: the buffer length - * - * This function tries to read @len bytes from the existing FTP connection - * and saves them in @dest. This is a blocking call. - * - * Returns the number of byte read. 0 is an indication of an end of connection. - * -1 indicates a parameter error. - */ -int -xmlNanoFTPRead(void *ctx, void *dest, int len) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - - if (ctx == NULL) return(-1); - if (ctxt->dataFd == INVALID_SOCKET) return(0); - if (dest == NULL) return(-1); - if (len <= 0) return(0); - - len = recv(ctxt->dataFd, dest, len, 0); - if (len <= 0) { - if (len < 0) - __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); - xmlNanoFTPCloseConnection(ctxt); - } -#ifdef DEBUG_FTP - xmlGenericError(xmlGenericErrorContext, "Recvd %d bytes\n", len); -#endif - return(len); -} - -/** - * xmlNanoFTPOpen: - * @URL: the URL to the resource - * - * Start to fetch the given ftp:// resource - * - * Returns an FTP context, or NULL - */ - -void* -xmlNanoFTPOpen(const char *URL) { - xmlNanoFTPCtxtPtr ctxt; - SOCKET sock; - - xmlNanoFTPInit(); - if (URL == NULL) return(NULL); - if (strncmp("ftp://", URL, 6)) return(NULL); - - ctxt = (xmlNanoFTPCtxtPtr) xmlNanoFTPNewCtxt(URL); - if (ctxt == NULL) return(NULL); - if (xmlNanoFTPConnect(ctxt) < 0) { - xmlNanoFTPFreeCtxt(ctxt); - return(NULL); - } - sock = xmlNanoFTPGetSocket(ctxt, ctxt->path); - if (sock == INVALID_SOCKET) { - xmlNanoFTPFreeCtxt(ctxt); - return(NULL); - } - return(ctxt); -} - -/** - * xmlNanoFTPClose: - * @ctx: an FTP context - * - * Close the connection and both control and transport - * - * Returns -1 incase of error, 0 otherwise - */ - -int -xmlNanoFTPClose(void *ctx) { - xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; - - if (ctxt == NULL) - return(-1); - - if (ctxt->dataFd != INVALID_SOCKET) { - closesocket(ctxt->dataFd); - ctxt->dataFd = INVALID_SOCKET; - } - if (ctxt->controlFd != INVALID_SOCKET) { - xmlNanoFTPQuit(ctxt); - closesocket(ctxt->controlFd); - ctxt->controlFd = INVALID_SOCKET; - } - xmlNanoFTPFreeCtxt(ctxt); - return(0); -} - -#ifdef STANDALONE -/************************************************************************ - * * - * Basic test in Standalone mode * - * * - ************************************************************************/ -static -void ftpList(void *userData, const char *filename, const char* attrib, - const char *owner, const char *group, unsigned long size, int links, - int year, const char *month, int day, int hour, int minute) { - xmlGenericError(xmlGenericErrorContext, - "%s %s %s %ld %s\n", attrib, owner, group, size, filename); -} -static -void ftpData(void *userData, const char *data, int len) { - if (userData == NULL) return; - if (len <= 0) { - fclose((FILE*)userData); - return; - } - fwrite(data, len, 1, (FILE*)userData); -} - -int main(int argc, char **argv) { - void *ctxt; - FILE *output; - char *tstfile = NULL; - - xmlNanoFTPInit(); - if (argc > 1) { - ctxt = xmlNanoFTPNewCtxt(argv[1]); - if (xmlNanoFTPConnect(ctxt) < 0) { - xmlGenericError(xmlGenericErrorContext, - "Couldn't connect to %s\n", argv[1]); - exit(1); - } - if (argc > 2) - tstfile = argv[2]; - } else - ctxt = xmlNanoFTPConnectTo("localhost", 0); - if (ctxt == NULL) { - xmlGenericError(xmlGenericErrorContext, - "Couldn't connect to localhost\n"); - exit(1); - } - xmlNanoFTPList(ctxt, ftpList, NULL, tstfile); - output = fopen("/tmp/tstdata", "w"); - if (output != NULL) { - if (xmlNanoFTPGet(ctxt, ftpData, (void *) output, tstfile) < 0) - xmlGenericError(xmlGenericErrorContext, - "Failed to get file\n"); - - } - xmlNanoFTPClose(ctxt); - xmlMemoryDump(); - exit(0); -} -#endif /* STANDALONE */ -#else /* !LIBXML_FTP_ENABLED */ -#ifdef STANDALONE -#include <stdio.h> -int main(int argc, char **argv) { - xmlGenericError(xmlGenericErrorContext, - "%s : FTP support not compiled in\n", argv[0]); - return(0); -} -#endif /* STANDALONE */ -#endif /* LIBXML_FTP_ENABLED */ -#define bottom_nanoftp -#include "elfgcchack.h" + case 1: + case 4: + case 5: + case -1: + default: + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + + return(0); +} + +/** + * xmlNanoFTPConnectTo: + * @server: an FTP server name + * @port: the port (use 21 if 0) + * + * Tries to open a control connection to the given server/port + * + * Returns an fTP context or NULL if it failed + */ + +void* +xmlNanoFTPConnectTo(const char *server, int port) { + xmlNanoFTPCtxtPtr ctxt; + int res; + + xmlNanoFTPInit(); + if (server == NULL) + return(NULL); + if (port <= 0) + return(NULL); + ctxt = (xmlNanoFTPCtxtPtr) xmlNanoFTPNewCtxt(NULL); + if (ctxt == NULL) + return(NULL); + ctxt->hostname = xmlMemStrdup(server); + if (ctxt->hostname == NULL) { + xmlNanoFTPFreeCtxt(ctxt); + return(NULL); + } + if (port != 0) + ctxt->port = port; + res = xmlNanoFTPConnect(ctxt); + if (res < 0) { + xmlNanoFTPFreeCtxt(ctxt); + return(NULL); + } + return(ctxt); +} + +/** + * xmlNanoFTPCwd: + * @ctx: an FTP context + * @directory: a directory on the server + * + * Tries to change the remote directory + * + * Returns -1 incase of error, 1 if CWD worked, 0 if it failed + */ + +int +xmlNanoFTPCwd(void *ctx, const char *directory) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[400]; + int len; + int res; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + if (directory == NULL) return 0; + + /* + * Expected response code for CWD: + * + * CWD + * 250 + * 500, 501, 502, 421, 530, 550 + */ + snprintf(buf, sizeof(buf), "CWD %s\r\n", directory); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if (res == 4) { + return(-1); + } + if (res == 2) return(1); + if (res == 5) { + return(0); + } + return(0); +} + +/** + * xmlNanoFTPDele: + * @ctx: an FTP context + * @file: a file or directory on the server + * + * Tries to delete an item (file or directory) from server + * + * Returns -1 incase of error, 1 if DELE worked, 0 if it failed + */ + +int +xmlNanoFTPDele(void *ctx, const char *file) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[400]; + int len; + int res; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET) || + (file == NULL)) return(-1); + + /* + * Expected response code for DELE: + * + * DELE + * 250 + * 450, 550 + * 500, 501, 502, 421, 530 + */ + + snprintf(buf, sizeof(buf), "DELE %s\r\n", file); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + return(res); + } + res = xmlNanoFTPGetResponse(ctxt); + if (res == 4) { + return(-1); + } + if (res == 2) return(1); + if (res == 5) { + return(0); + } + return(0); +} +/** + * xmlNanoFTPGetConnection: + * @ctx: an FTP context + * + * Try to open a data connection to the server. Currently only + * passive mode is supported. + * + * Returns -1 incase of error, 0 otherwise + */ + +SOCKET +xmlNanoFTPGetConnection(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[200], *cur; + int len, i; + int res; + unsigned char ad[6], *adp, *portp; + unsigned int temp[6]; +#ifdef SUPPORT_IP6 + struct sockaddr_storage dataAddr; +#else + struct sockaddr_in dataAddr; +#endif + XML_SOCKLEN_T dataAddrLen; + + if (ctxt == NULL) return INVALID_SOCKET; + + memset (&dataAddr, 0, sizeof(dataAddr)); +#ifdef SUPPORT_IP6 + if ((ctxt->ftpAddr).ss_family == AF_INET6) { + ctxt->dataFd = socket (AF_INET6, SOCK_STREAM, IPPROTO_TCP); + ((struct sockaddr_in6 *)&dataAddr)->sin6_family = AF_INET6; + dataAddrLen = sizeof(struct sockaddr_in6); + } else +#endif + { + ctxt->dataFd = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP); + ((struct sockaddr_in *)&dataAddr)->sin_family = AF_INET; + dataAddrLen = sizeof (struct sockaddr_in); + } + + if (ctxt->dataFd == INVALID_SOCKET) { + __xmlIOErr(XML_FROM_FTP, 0, "socket failed"); + return INVALID_SOCKET; + } + + if (ctxt->passive) { +#ifdef SUPPORT_IP6 + if ((ctxt->ftpAddr).ss_family == AF_INET6) + snprintf (buf, sizeof(buf), "EPSV\r\n"); + else +#endif + snprintf (buf, sizeof(buf), "PASV\r\n"); + len = strlen (buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + res = xmlNanoFTPReadResponse(ctx); + if (res != 2) { + if (res == 5) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } else { + /* + * retry with an active connection + */ + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + ctxt->passive = 0; + } + } + cur = &ctxt->controlBuf[ctxt->controlBufAnswer]; + while (((*cur < '0') || (*cur > '9')) && *cur != '\0') cur++; +#ifdef SUPPORT_IP6 + if ((ctxt->ftpAddr).ss_family == AF_INET6) { + if (sscanf (cur, "%u", &temp[0]) != 1) { + __xmlIOErr(XML_FROM_FTP, XML_FTP_EPSV_ANSWER, + "Invalid answer to EPSV\n"); + if (ctxt->dataFd != INVALID_SOCKET) { + closesocket (ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + } + return INVALID_SOCKET; + } + memcpy (&((struct sockaddr_in6 *)&dataAddr)->sin6_addr, &((struct sockaddr_in6 *)&ctxt->ftpAddr)->sin6_addr, sizeof(struct in6_addr)); + ((struct sockaddr_in6 *)&dataAddr)->sin6_port = htons (temp[0]); + } + else +#endif + { + if (sscanf (cur, "%u,%u,%u,%u,%u,%u", &temp[0], &temp[1], &temp[2], + &temp[3], &temp[4], &temp[5]) != 6) { + __xmlIOErr(XML_FROM_FTP, XML_FTP_PASV_ANSWER, + "Invalid answer to PASV\n"); + if (ctxt->dataFd != INVALID_SOCKET) { + closesocket (ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + } + return INVALID_SOCKET; + } + for (i=0; i<6; i++) ad[i] = (unsigned char) (temp[i] & 0xff); + memcpy (&((struct sockaddr_in *)&dataAddr)->sin_addr, &ad[0], 4); + memcpy (&((struct sockaddr_in *)&dataAddr)->sin_port, &ad[4], 2); + } + + if (connect(ctxt->dataFd, (struct sockaddr *) &dataAddr, dataAddrLen) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "Failed to create a data connection"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + } else { + getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, &dataAddrLen); +#ifdef SUPPORT_IP6 + if ((ctxt->ftpAddr).ss_family == AF_INET6) + ((struct sockaddr_in6 *)&dataAddr)->sin6_port = 0; + else +#endif + ((struct sockaddr_in *)&dataAddr)->sin_port = 0; + + if (bind(ctxt->dataFd, (struct sockaddr *) &dataAddr, dataAddrLen) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "bind failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + getsockname(ctxt->dataFd, (struct sockaddr *) &dataAddr, &dataAddrLen); + + if (listen(ctxt->dataFd, 1) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "listen failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } +#ifdef SUPPORT_IP6 + if ((ctxt->ftpAddr).ss_family == AF_INET6) { + char buf6[INET6_ADDRSTRLEN]; + inet_ntop (AF_INET6, &((struct sockaddr_in6 *)&dataAddr)->sin6_addr, + buf6, INET6_ADDRSTRLEN); + adp = (unsigned char *) buf6; + portp = (unsigned char *) &((struct sockaddr_in6 *)&dataAddr)->sin6_port; + snprintf (buf, sizeof(buf), "EPRT |2|%s|%s|\r\n", adp, portp); + } else +#endif + { + adp = (unsigned char *) &((struct sockaddr_in *)&dataAddr)->sin_addr; + portp = (unsigned char *) &((struct sockaddr_in *)&dataAddr)->sin_port; + snprintf (buf, sizeof(buf), "PORT %d,%d,%d,%d,%d,%d\r\n", + adp[0] & 0xff, adp[1] & 0xff, adp[2] & 0xff, adp[3] & 0xff, + portp[0] & 0xff, portp[1] & 0xff); + } + + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + res = xmlNanoFTPGetResponse(ctxt); + if (res != 2) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + } + return(ctxt->dataFd); + +} + +/** + * xmlNanoFTPCloseConnection: + * @ctx: an FTP context + * + * Close the data connection from the server + * + * Returns -1 incase of error, 0 otherwise + */ + +int +xmlNanoFTPCloseConnection(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + int res; + fd_set rfd, efd; + struct timeval tv; + + if ((ctxt == NULL) || (ctxt->controlFd == INVALID_SOCKET)) return(-1); + + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + tv.tv_sec = 15; + tv.tv_usec = 0; + FD_ZERO(&rfd); + FD_SET(ctxt->controlFd, &rfd); + FD_ZERO(&efd); + FD_SET(ctxt->controlFd, &efd); + res = select(ctxt->controlFd + 1, &rfd, NULL, &efd, &tv); + if (res < 0) { +#ifdef DEBUG_FTP + perror("select"); +#endif + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + if (res == 0) { +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, + "xmlNanoFTPCloseConnection: timeout\n"); +#endif + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + } else { + res = xmlNanoFTPGetResponse(ctxt); + if (res != 2) { + closesocket(ctxt->controlFd); ctxt->controlFd = INVALID_SOCKET; + return(-1); + } + } + return(0); +} + +/** + * xmlNanoFTPParseList: + * @list: some data listing received from the server + * @callback: the user callback + * @userData: the user callback data + * + * Parse at most one entry from the listing. + * + * Returns -1 incase of error, the length of data parsed otherwise + */ + +static int +xmlNanoFTPParseList(const char *list, ftpListCallback callback, void *userData) { + const char *cur = list; + char filename[151]; + char attrib[11]; + char owner[11]; + char group[11]; + char month[4]; + int year = 0; + int minute = 0; + int hour = 0; + int day = 0; + unsigned long size = 0; + int links = 0; + int i; + + if (!strncmp(cur, "total", 5)) { + cur += 5; + while (*cur == ' ') cur++; + while ((*cur >= '0') && (*cur <= '9')) + links = (links * 10) + (*cur++ - '0'); + while ((*cur == ' ') || (*cur == '\n') || (*cur == '\r')) + cur++; + return(cur - list); + } else if (*list == '+') { + return(0); + } else { + while ((*cur == ' ') || (*cur == '\n') || (*cur == '\r')) + cur++; + if (*cur == 0) return(0); + i = 0; + while (*cur != ' ') { + if (i < 10) + attrib[i++] = *cur; + cur++; + if (*cur == 0) return(0); + } + attrib[10] = 0; + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + while ((*cur >= '0') && (*cur <= '9')) + links = (links * 10) + (*cur++ - '0'); + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + i = 0; + while (*cur != ' ') { + if (i < 10) + owner[i++] = *cur; + cur++; + if (*cur == 0) return(0); + } + owner[i] = 0; + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + i = 0; + while (*cur != ' ') { + if (i < 10) + group[i++] = *cur; + cur++; + if (*cur == 0) return(0); + } + group[i] = 0; + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + while ((*cur >= '0') && (*cur <= '9')) + size = (size * 10) + (*cur++ - '0'); + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + i = 0; + while (*cur != ' ') { + if (i < 3) + month[i++] = *cur; + cur++; + if (*cur == 0) return(0); + } + month[i] = 0; + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + while ((*cur >= '0') && (*cur <= '9')) + day = (day * 10) + (*cur++ - '0'); + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + if ((cur[1] == 0) || (cur[2] == 0)) return(0); + if ((cur[1] == ':') || (cur[2] == ':')) { + while ((*cur >= '0') && (*cur <= '9')) + hour = (hour * 10) + (*cur++ - '0'); + if (*cur == ':') cur++; + while ((*cur >= '0') && (*cur <= '9')) + minute = (minute * 10) + (*cur++ - '0'); + } else { + while ((*cur >= '0') && (*cur <= '9')) + year = (year * 10) + (*cur++ - '0'); + } + while (*cur == ' ') cur++; + if (*cur == 0) return(0); + i = 0; + while ((*cur != '\n') && (*cur != '\r')) { + if (i < 150) + filename[i++] = *cur; + cur++; + if (*cur == 0) return(0); + } + filename[i] = 0; + if ((*cur != '\n') && (*cur != '\r')) + return(0); + while ((*cur == '\n') || (*cur == '\r')) + cur++; + } + if (callback != NULL) { + callback(userData, filename, attrib, owner, group, size, links, + year, month, day, hour, minute); + } + return(cur - list); +} + +/** + * xmlNanoFTPList: + * @ctx: an FTP context + * @callback: the user callback + * @userData: the user callback data + * @filename: optional files to list + * + * Do a listing on the server. All files info are passed back + * in the callbacks. + * + * Returns -1 incase of error, 0 otherwise + */ + +int +xmlNanoFTPList(void *ctx, ftpListCallback callback, void *userData, + const char *filename) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[4096 + 1]; + int len, res; + int indx = 0, base; + fd_set rfd, efd; + struct timeval tv; + + if (ctxt == NULL) return (-1); + if (filename == NULL) { + if (xmlNanoFTPCwd(ctxt, ctxt->path) < 1) + return(-1); + ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); + if (ctxt->dataFd == INVALID_SOCKET) + return(-1); + snprintf(buf, sizeof(buf), "LIST -L\r\n"); + } else { + if (filename[0] != '/') { + if (xmlNanoFTPCwd(ctxt, ctxt->path) < 1) + return(-1); + } + ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); + if (ctxt->dataFd == INVALID_SOCKET) + return(-1); + snprintf(buf, sizeof(buf), "LIST -L %s\r\n", filename); + } + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(res); + } + res = xmlNanoFTPReadResponse(ctxt); + if (res != 1) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(-res); + } + + do { + tv.tv_sec = 1; + tv.tv_usec = 0; + FD_ZERO(&rfd); + FD_SET(ctxt->dataFd, &rfd); + FD_ZERO(&efd); + FD_SET(ctxt->dataFd, &efd); + res = select(ctxt->dataFd + 1, &rfd, NULL, &efd, &tv); + if (res < 0) { +#ifdef DEBUG_FTP + perror("select"); +#endif + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(-1); + } + if (res == 0) { + res = xmlNanoFTPCheckResponse(ctxt); + if (res < 0) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + ctxt->dataFd = INVALID_SOCKET; + return(-1); + } + if (res == 2) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(0); + } + + continue; + } + + if ((len = recv(ctxt->dataFd, &buf[indx], sizeof(buf) - (indx + 1), 0)) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "recv"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + ctxt->dataFd = INVALID_SOCKET; + return(-1); + } +#ifdef DEBUG_FTP + write(1, &buf[indx], len); +#endif + indx += len; + buf[indx] = 0; + base = 0; + do { + res = xmlNanoFTPParseList(&buf[base], callback, userData); + base += res; + } while (res > 0); + + memmove(&buf[0], &buf[base], indx - base); + indx -= base; + } while (len != 0); + xmlNanoFTPCloseConnection(ctxt); + return(0); +} + +/** + * xmlNanoFTPGetSocket: + * @ctx: an FTP context + * @filename: the file to retrieve (or NULL if path is in context). + * + * Initiate fetch of the given file from the server. + * + * Returns the socket for the data connection, or <0 in case of error + */ + + +SOCKET +xmlNanoFTPGetSocket(void *ctx, const char *filename) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[300]; + int res, len; + if (ctx == NULL) + return INVALID_SOCKET; + if ((filename == NULL) && (ctxt->path == NULL)) + return INVALID_SOCKET; + ctxt->dataFd = xmlNanoFTPGetConnection(ctxt); + if (ctxt->dataFd == INVALID_SOCKET) + return INVALID_SOCKET; + + snprintf(buf, sizeof(buf), "TYPE I\r\n"); + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + res = xmlNanoFTPReadResponse(ctxt); + if (res != 2) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + if (filename == NULL) + snprintf(buf, sizeof(buf), "RETR %s\r\n", ctxt->path); + else + snprintf(buf, sizeof(buf), "RETR %s\r\n", filename); + buf[sizeof(buf) - 1] = 0; + len = strlen(buf); +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "%s", buf); +#endif + res = send(ctxt->controlFd, SEND_ARG2_CAST buf, len, 0); + if (res < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "send failed"); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + res = xmlNanoFTPReadResponse(ctxt); + if (res != 1) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return INVALID_SOCKET; + } + return(ctxt->dataFd); +} + +/** + * xmlNanoFTPGet: + * @ctx: an FTP context + * @callback: the user callback + * @userData: the user callback data + * @filename: the file to retrieve + * + * Fetch the given file from the server. All data are passed back + * in the callbacks. The last callback has a size of 0 block. + * + * Returns -1 incase of error, 0 otherwise + */ + +int +xmlNanoFTPGet(void *ctx, ftpDataCallback callback, void *userData, + const char *filename) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + char buf[4096]; + int len = 0, res; + fd_set rfd; + struct timeval tv; + + if (ctxt == NULL) return(-1); + if ((filename == NULL) && (ctxt->path == NULL)) + return(-1); + if (callback == NULL) + return(-1); + if (xmlNanoFTPGetSocket(ctxt, filename) == INVALID_SOCKET) + return(-1); + + do { + tv.tv_sec = 1; + tv.tv_usec = 0; + FD_ZERO(&rfd); + FD_SET(ctxt->dataFd, &rfd); + res = select(ctxt->dataFd + 1, &rfd, NULL, NULL, &tv); + if (res < 0) { +#ifdef DEBUG_FTP + perror("select"); +#endif + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(-1); + } + if (res == 0) { + res = xmlNanoFTPCheckResponse(ctxt); + if (res < 0) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + ctxt->dataFd = INVALID_SOCKET; + return(-1); + } + if (res == 2) { + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(0); + } + + continue; + } + if ((len = recv(ctxt->dataFd, buf, sizeof(buf), 0)) < 0) { + __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); + callback(userData, buf, len); + closesocket(ctxt->dataFd); ctxt->dataFd = INVALID_SOCKET; + return(-1); + } + callback(userData, buf, len); + } while (len != 0); + + return(xmlNanoFTPCloseConnection(ctxt)); +} + +/** + * xmlNanoFTPRead: + * @ctx: the FTP context + * @dest: a buffer + * @len: the buffer length + * + * This function tries to read @len bytes from the existing FTP connection + * and saves them in @dest. This is a blocking call. + * + * Returns the number of byte read. 0 is an indication of an end of connection. + * -1 indicates a parameter error. + */ +int +xmlNanoFTPRead(void *ctx, void *dest, int len) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + + if (ctx == NULL) return(-1); + if (ctxt->dataFd == INVALID_SOCKET) return(0); + if (dest == NULL) return(-1); + if (len <= 0) return(0); + + len = recv(ctxt->dataFd, dest, len, 0); + if (len <= 0) { + if (len < 0) + __xmlIOErr(XML_FROM_FTP, 0, "recv failed"); + xmlNanoFTPCloseConnection(ctxt); + } +#ifdef DEBUG_FTP + xmlGenericError(xmlGenericErrorContext, "Recvd %d bytes\n", len); +#endif + return(len); +} + +/** + * xmlNanoFTPOpen: + * @URL: the URL to the resource + * + * Start to fetch the given ftp:// resource + * + * Returns an FTP context, or NULL + */ + +void* +xmlNanoFTPOpen(const char *URL) { + xmlNanoFTPCtxtPtr ctxt; + SOCKET sock; + + xmlNanoFTPInit(); + if (URL == NULL) return(NULL); + if (strncmp("ftp://", URL, 6)) return(NULL); + + ctxt = (xmlNanoFTPCtxtPtr) xmlNanoFTPNewCtxt(URL); + if (ctxt == NULL) return(NULL); + if (xmlNanoFTPConnect(ctxt) < 0) { + xmlNanoFTPFreeCtxt(ctxt); + return(NULL); + } + sock = xmlNanoFTPGetSocket(ctxt, ctxt->path); + if (sock == INVALID_SOCKET) { + xmlNanoFTPFreeCtxt(ctxt); + return(NULL); + } + return(ctxt); +} + +/** + * xmlNanoFTPClose: + * @ctx: an FTP context + * + * Close the connection and both control and transport + * + * Returns -1 incase of error, 0 otherwise + */ + +int +xmlNanoFTPClose(void *ctx) { + xmlNanoFTPCtxtPtr ctxt = (xmlNanoFTPCtxtPtr) ctx; + + if (ctxt == NULL) + return(-1); + + if (ctxt->dataFd != INVALID_SOCKET) { + closesocket(ctxt->dataFd); + ctxt->dataFd = INVALID_SOCKET; + } + if (ctxt->controlFd != INVALID_SOCKET) { + xmlNanoFTPQuit(ctxt); + closesocket(ctxt->controlFd); + ctxt->controlFd = INVALID_SOCKET; + } + xmlNanoFTPFreeCtxt(ctxt); + return(0); +} + +#ifdef STANDALONE +/************************************************************************ + * * + * Basic test in Standalone mode * + * * + ************************************************************************/ +static +void ftpList(void *userData, const char *filename, const char* attrib, + const char *owner, const char *group, unsigned long size, int links, + int year, const char *month, int day, int hour, int minute) { + xmlGenericError(xmlGenericErrorContext, + "%s %s %s %ld %s\n", attrib, owner, group, size, filename); +} +static +void ftpData(void *userData, const char *data, int len) { + if (userData == NULL) return; + if (len <= 0) { + fclose((FILE*)userData); + return; + } + fwrite(data, len, 1, (FILE*)userData); +} + +int main(int argc, char **argv) { + void *ctxt; + FILE *output; + char *tstfile = NULL; + + xmlNanoFTPInit(); + if (argc > 1) { + ctxt = xmlNanoFTPNewCtxt(argv[1]); + if (xmlNanoFTPConnect(ctxt) < 0) { + xmlGenericError(xmlGenericErrorContext, + "Couldn't connect to %s\n", argv[1]); + exit(1); + } + if (argc > 2) + tstfile = argv[2]; + } else + ctxt = xmlNanoFTPConnectTo("localhost", 0); + if (ctxt == NULL) { + xmlGenericError(xmlGenericErrorContext, + "Couldn't connect to localhost\n"); + exit(1); + } + xmlNanoFTPList(ctxt, ftpList, NULL, tstfile); + output = fopen("/tmp/tstdata", "w"); + if (output != NULL) { + if (xmlNanoFTPGet(ctxt, ftpData, (void *) output, tstfile) < 0) + xmlGenericError(xmlGenericErrorContext, + "Failed to get file\n"); + + } + xmlNanoFTPClose(ctxt); + xmlMemoryDump(); + exit(0); +} +#endif /* STANDALONE */ +#else /* !LIBXML_FTP_ENABLED */ +#ifdef STANDALONE +#include <stdio.h> +int main(int argc, char **argv) { + xmlGenericError(xmlGenericErrorContext, + "%s : FTP support not compiled in\n", argv[0]); + return(0); +} +#endif /* STANDALONE */ +#endif /* LIBXML_FTP_ENABLED */ +#define bottom_nanoftp +#include "elfgcchack.h" |