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The variable "packet" needs to be in LIBSSH2_SFTP_HANDLE for re-entry when

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blocking in libssh2_sftp_close_handle()
This commit is contained in:
James Housley
2007-07-09 15:11:37 +00:00
parent 50fd6590f0
commit a87fdff9e9
2 changed files with 9 additions and 6 deletions
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1
src/libssh2_priv.h
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@@ -487,6 +487,7 @@ struct _LIBSSH2_SFTP_HANDLE {
/* State variables used in libssh2_sftp_close_handle() */ /* State variables used in libssh2_sftp_close_handle() */
libssh2_nonblocking_states close_state; libssh2_nonblocking_states close_state;
unsigned long close_request_id; unsigned long close_request_id;
unsigned char *close_packet;
}; };
struct _LIBSSH2_SFTP { struct _LIBSSH2_SFTP {

14
src/sftp.c
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@@ -1375,13 +1375,13 @@ LIBSSH2_API int libssh2_sftp_close_handle(LIBSSH2_SFTP_HANDLE *handle)
unsigned long data_len, retcode; unsigned long data_len, retcode;
/* 13 = packet_len(4) + packet_type(1) + request_id(4) + handle_len(4) */ /* 13 = packet_len(4) + packet_type(1) + request_id(4) + handle_len(4) */
ssize_t packet_len = handle->handle_len + 13; ssize_t packet_len = handle->handle_len + 13;
unsigned char *packet, *s, *data; unsigned char *s, *data;
int rc; int rc;
if (handle->close_state == libssh2_NB_state_idle) { if (handle->close_state == libssh2_NB_state_idle) {
_libssh2_debug(session, LIBSSH2_DBG_SFTP, "Closing handle"); _libssh2_debug(session, LIBSSH2_DBG_SFTP, "Closing handle");
s = packet = LIBSSH2_ALLOC(session, packet_len); s = handle->close_packet = LIBSSH2_ALLOC(session, packet_len);
if (!packet) { if (!handle->close_packet) {
libssh2_error(session, LIBSSH2_ERROR_ALLOC, "Unable to allocate memory for FXP_CLOSE packet", 0); libssh2_error(session, LIBSSH2_ERROR_ALLOC, "Unable to allocate memory for FXP_CLOSE packet", 0);
return -1; return -1;
} }
@@ -1397,17 +1397,19 @@ LIBSSH2_API int libssh2_sftp_close_handle(LIBSSH2_SFTP_HANDLE *handle)
} }
if (handle->close_state == libssh2_NB_state_created) { if (handle->close_state == libssh2_NB_state_created) {
rc = libssh2_channel_write_ex(channel, 0, (char *)packet, packet_len); rc = libssh2_channel_write_ex(channel, 0, (char *)handle->close_packet, packet_len);
if (rc == PACKET_EAGAIN) { if (rc == PACKET_EAGAIN) {
return PACKET_EAGAIN; return PACKET_EAGAIN;
} }
else if (packet_len != rc) { else if (packet_len != rc) {
libssh2_error(session, LIBSSH2_ERROR_SOCKET_SEND, "Unable to send FXP_CLOSE command", 0); libssh2_error(session, LIBSSH2_ERROR_SOCKET_SEND, "Unable to send FXP_CLOSE command", 0);
LIBSSH2_FREE(session, packet); LIBSSH2_FREE(session, handle->close_packet);
handle->close_packet = NULL;
handle->close_state = libssh2_NB_state_idle; handle->close_state = libssh2_NB_state_idle;
return -1; return -1;
} }
LIBSSH2_FREE(session, packet); LIBSSH2_FREE(session, handle->close_packet);
handle->close_packet = NULL;
handle->close_state = libssh2_NB_state_sent; handle->close_state = libssh2_NB_state_sent;
} }