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-rw-r--r--lib/ftp.c157
1 files changed, 86 insertions, 71 deletions
diff --git a/lib/ftp.c b/lib/ftp.c
index bd6826e0c..468f66233 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -88,75 +88,6 @@
/* easy-to-use macro: */
#define ftpsendf Curl_ftpsendf
-/* returns last node in linked list */
-static struct curl_slist *slist_get_last(struct curl_slist *list)
-{
- struct curl_slist *item;
-
- /* if caller passed us a NULL, return now */
- if (!list)
- return NULL;
-
- /* loop through to find the last item */
- item = list;
- while (item->next) {
- item = item->next;
- }
- return item;
-}
-
-/* append a struct to the linked list. It always retunrs the address of the
- * first record, so that you can sure this function as an initialization
- * function as well as an append function. If you find this bothersome,
- * then simply create a separate _init function and call it appropriately from
- * within the proram. */
-struct curl_slist *curl_slist_append(struct curl_slist *list, char *data)
-{
- struct curl_slist *last;
- struct curl_slist *new_item;
-
- new_item = (struct curl_slist *) malloc(sizeof(struct curl_slist));
- if (new_item) {
- new_item->next = NULL;
- new_item->data = strdup(data);
- }
- else {
- fprintf(stderr, "Cannot allocate memory for QUOTE list.\n");
- return NULL;
- }
-
- if (list) {
- last = slist_get_last(list);
- last->next = new_item;
- return list;
- }
-
- /* if this is the first item, then new_item *is* the list */
- return new_item;
-}
-
-/* be nice and clean up resources */
-void curl_slist_free_all(struct curl_slist *list)
-{
- struct curl_slist *next;
- struct curl_slist *item;
-
- if (!list)
- return;
-
- item = list;
- do {
- next = item->next;
-
- if (item->data) {
- free(item->data);
- }
- free(item);
- item = next;
- } while (next);
-}
-
-
static CURLcode AllowServerConnect(struct UrlData *data,
struct connectdata *conn,
int sock)
@@ -367,8 +298,10 @@ CURLcode Curl_ftp_connect(struct connectdata *conn)
/* get some initial data into the ftp struct */
ftp->bytecountp = &conn->bytecount;
- ftp->user = data->user;
- ftp->passwd = data->passwd;
+
+ /* duplicate to keep them even when the data struct changes */
+ ftp->user = strdup(data->user);
+ ftp->passwd = strdup(data->passwd);
if (data->bits.tunnel_thru_httpproxy) {
/* We want "seamless" FTP operations through HTTP proxy tunnel */
@@ -470,6 +403,58 @@ CURLcode Curl_ftp_connect(struct connectdata *conn)
return CURLE_FTP_WEIRD_USER_REPLY;
}
+ /* send PWD to discover our entry point */
+ ftpsendf(conn->firstsocket, conn, "PWD");
+
+ /* wait for feedback */
+ nread = Curl_GetFTPResponse(conn->firstsocket, buf, conn, &ftpcode);
+ if(nread < 0)
+ return CURLE_OPERATION_TIMEOUTED;
+
+ if(ftpcode == 257) {
+ char *dir = (char *)malloc(nread+1);
+ char *store=dir;
+ char *ptr=&buf[4]; /* start on the first letter */
+
+ /* Reply format is like
+ 257<space>"<directory-name>"<space><commentary> and the RFC959 says
+
+ The directory name can contain any character; embedded double-quotes
+ should be escaped by double-quotes (the "quote-doubling" convention).
+ */
+ if('\"' == *ptr) {
+ /* it started good */
+ ptr++;
+ while(ptr && *ptr) {
+ if('\"' == *ptr) {
+ if('\"' == ptr[1]) {
+ /* "quote-doubling" */
+ *store = ptr[1];
+ ptr++;
+ }
+ else {
+ /* end of path */
+ *store = '\0'; /* zero terminate */
+ break; /* get out of this loop */
+ }
+ }
+ else
+ *store = *ptr;
+ store++;
+ ptr++;
+ }
+ ftp->entrypath =dir; /* remember this */
+ infof(data, "Entry path is '%s'\n", ftp->entrypath);
+ }
+ else {
+ /* couldn't get the path */
+ }
+
+ }
+ else {
+ /* We couldn't read the PWD response! */
+ }
+
return CURLE_OK;
}
@@ -600,6 +585,23 @@ CURLcode _ftp(struct connectdata *conn)
}
}
+ if(conn->bits.reuse) {
+ /* This is a re-used connection. Since we change directory to where the
+ transfer is taking place, we must now get back to the original dir
+ where we ended up after login: */
+ ftpsendf(conn->firstsocket, conn, "CWD %s", ftp->entrypath);
+ nread = Curl_GetFTPResponse(conn->firstsocket, buf, conn, &ftpcode);
+ if(nread < 0)
+ return CURLE_OPERATION_TIMEOUTED;
+
+ if(ftpcode != 250) {
+ failf(data, "Couldn't change back to directory %s", ftp->entrypath);
+ return CURLE_FTP_ACCESS_DENIED;
+ }
+ }
+
+
+
/* change directory first! */
if(ftp->dir && ftp->dir[0]) {
ftpsendf(conn->firstsocket, conn, "CWD %s", ftp->dir);
@@ -1707,3 +1709,16 @@ size_t Curl_ftpsendf(int fd, struct connectdata *conn, char *fmt, ...)
}
+CURLcode Curl_ftp_disconnect(struct connectdata *conn)
+{
+ struct FTP *ftp= conn->proto.ftp;
+
+ if(ftp->user)
+ free(ftp->user);
+ if(ftp->passwd)
+ free(ftp->passwd);
+ if(ftp->entrypath)
+ free(ftp->entrypath);
+
+ return CURLE_OK;
+}