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server: fix conditions for fds in wl_socket_destroy

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0 is also a valid fd, and needs to be closed.

On error we set fd to -1. We need to also initialize fds to -1, so we do
not accidentally close stdout on error.

While fixing this, also remove one use-before-NULL-check.

Based on the patch by Marek.

Cc: Marek Chalupa <mchqwerty@gmail.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
This commit is contained in:
Pekka Paalanen 2014-08-07 16:46:52 +03:00
parent 3a84e45a30
commit ced769ac92
1 changed files with 20 additions and 7 deletions
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27
src/wayland-server.c
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@ -848,16 +848,32 @@ wl_socket_destroy(struct wl_socket *s)
wl_event_source_remove(s->source); wl_event_source_remove(s->source);
if (s->addr.sun_path[0]) if (s->addr.sun_path[0])
unlink(s->addr.sun_path); unlink(s->addr.sun_path);
if (s->fd) if (s->fd >= 0)
close(s->fd); close(s->fd);
if (s->lock_addr[0]) if (s->lock_addr[0])
unlink(s->lock_addr); unlink(s->lock_addr);
if (s->fd_lock) if (s->fd_lock >= 0)
close(s->fd_lock); close(s->fd_lock);
free(s); free(s);
} }
static struct wl_socket *
wl_socket_alloc(void)
{
struct wl_socket *s;
s = malloc(sizeof *s);
if (!s)
return NULL;
memset(s, 0, sizeof *s);
s->fd = -1;
s->fd_lock = -1;
return s;
}
WL_EXPORT void WL_EXPORT void
wl_display_destroy(struct wl_display *display) wl_display_destroy(struct wl_display *display)
{ {
@ -1149,12 +1165,10 @@ wl_display_add_socket_auto(struct wl_display *display)
* you need more than this, use the explicit add_socket API. */ * you need more than this, use the explicit add_socket API. */
const int MAX_DISPLAYNO = 32; const int MAX_DISPLAYNO = 32;
s = malloc(sizeof *s); s = wl_socket_alloc();
if (s == NULL) if (s == NULL)
return NULL; return NULL;
memset(s, 0, sizeof *s);
do { do {
snprintf(display_name, sizeof display_name, "wayland-%d", displayno); snprintf(display_name, sizeof display_name, "wayland-%d", displayno);
if (wl_socket_init_for_display_name(s, display_name) < 0) { if (wl_socket_init_for_display_name(s, display_name) < 0) {
@ -1184,8 +1198,7 @@ wl_display_add_socket(struct wl_display *display, const char *name)
{ {
struct wl_socket *s; struct wl_socket *s;
s = malloc(sizeof *s); s = wl_socket_alloc();
memset(s, 0, sizeof *s);
if (s == NULL) if (s == NULL)
return -1; return -1;