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Change -tftp option to take a root directory, by Anthony Liguori.

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2441 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-02-20 00:12:07 +00:00
parent 1f697db9c3
commit 0db1137dbf
3 changed files with 15 additions and 10 deletions
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12
slirp/tftp.c
View file

@ -102,8 +102,15 @@ static int tftp_read_data(struct tftp_session *spt, u_int16_t block_nr,
{
int fd;
int bytes_read = 0;
char buffer[1024];
int n;
fd = open(spt->filename, O_RDONLY | O_BINARY);
n = snprintf(buffer, sizeof(buffer), "%s/%s",
tftp_prefix, spt->filename);
if (n >= sizeof(buffer))
return -1;
fd = open(buffer, O_RDONLY | O_BINARY);
if (fd < 0) {
return -1;
@ -325,8 +332,7 @@ static void tftp_handle_rrq(struct tftp_t *tp, int pktlen)
/* only allow exported prefixes */
if (!tftp_prefix
|| (strncmp(spt->filename, tftp_prefix, strlen(tftp_prefix)) != 0)) {
if (!tftp_prefix) {
tftp_send_error(spt, 2, "Access violation", tp);
return;
}