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-rw-r--r--source3/libsmb/clilist.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/source3/libsmb/clilist.c b/source3/libsmb/clilist.c
index d5c7db09e9..2bad3e508b 100644
--- a/source3/libsmb/clilist.c
+++ b/source3/libsmb/clilist.c
@@ -459,11 +459,12 @@ int cli_list_new(struct cli_state *cli,const char *Mask,uint16 attribute,
The length of the structure is returned.
****************************************************************************/
-static int interpret_short_filename(TALLOC_CTX *ctx,
+static bool interpret_short_filename(TALLOC_CTX *ctx,
struct cli_state *cli,
char *p,
file_info *finfo)
{
+ size_t ret;
ZERO_STRUCTP(finfo);
finfo->cli = cli;
@@ -475,18 +476,22 @@ static int interpret_short_filename(TALLOC_CTX *ctx,
finfo->mtime_ts.tv_sec = finfo->atime_ts.tv_sec = finfo->ctime_ts.tv_sec;
finfo->mtime_ts.tv_nsec = finfo->atime_ts.tv_nsec = 0;
finfo->size = IVAL(p,26);
- clistr_pull_talloc(ctx,
+ ret = clistr_pull_talloc(ctx,
cli,
&finfo->name,
p+30,
12,
STR_ASCII);
- if (!finfo->name) {
- finfo->name = talloc_strdup(ctx, finfo->short_name);
- } else if (strcmp(finfo->name, "..") && strcmp(finfo->name, ".")) {
- finfo->name = talloc_strdup(ctx, finfo->short_name);
+ if (ret == (size_t)-1) {
+ return false;
}
+ if (finfo->name) {
+ strlcpy(finfo->short_name,
+ finfo->name,
+ sizeof(finfo->short_name));
+ }
+ return true;
return(DIR_STRUCT_SIZE);
}
@@ -555,6 +560,12 @@ int cli_list_old(struct cli_state *cli,const char *Mask,uint16 attribute,
received = SVAL(cli->inbuf,smb_vwv0);
if (received <= 0) break;
+ /* Ensure we received enough data. */
+ if ((cli->inbuf+4+smb_len(cli->inbuf) - (smb_buf(cli->inbuf)+3)) <
+ received*DIR_STRUCT_SIZE) {
+ break;
+ }
+
first = False;
dirlist = (char *)SMB_REALLOC(
@@ -609,7 +620,10 @@ int cli_list_old(struct cli_state *cli,const char *Mask,uint16 attribute,
frame = talloc_stackframe();
for (p=dirlist,i=0;i<num_received;i++) {
file_info finfo;
- p += interpret_short_filename(frame,cli, p,&finfo);
+ if (!interpret_short_filename(frame, cli, p, &finfo)) {
+ break;
+ }
+ p += DIR_STRUCT_SIZE;
fn("\\", &finfo, Mask, state);
}
TALLOC_FREE(frame);