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Get rid of PATH_MAX 

There could be no upper limit on the length of a path according
to POSIX, therefore these macros may not be defined at all on
some systems (such as GNU Hurd). There is however a limit on
sizeof(struct sockaddr_un.sun_path), so use it.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Part-of: <https://gitlab.freedesktop.org/xorg/lib/libxcb/-/merge_requests/65>
This commit is contained in:
Samuel Thibault 2025-07-08 13:29:00 +02:00
parent daf2c53976
commit 6a7661f60a
1 changed files with 3 additions and 1 deletions
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4
src/xcb_util.c
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@ -104,7 +104,9 @@ static int _xcb_parse_display_path_to_socket(const char *name, char **host, char
int *displayp, int *screenp) int *displayp, int *screenp)
{ {
struct stat sbuf; struct stat sbuf;
char path[PATH_MAX]; /* In addition to the AF_UNIX path, there may be a screen number.
* The trailing \0 is already accounted in the size of sun_path. */
char path[sizeof(((struct sockaddr_un*)0)->sun_path) + 1 + 10];
size_t len; size_t len;
int _screen = 0, res; int _screen = 0, res;