9 char *__strchrnul(const char *, int);
11 char *__shm_mapname(const char *name, char *buf)
14 while (*name == '/') name++;
15 if (*(p = __strchrnul(name, '/')) || p==name ||
16 (p-name <= 2 && name[0]=='.' && p[-1]=='.')) {
20 if (p-name > NAME_MAX) {
24 memcpy(buf, "/dev/shm/", 9);
25 memcpy(buf+9, name, p-name+1);
29 int shm_open(const char *name, int flag, mode_t mode)
32 char buf[NAME_MAX+10];
33 if (!(name = __shm_mapname(name, buf))) return -1;
34 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
35 int fd = open(name, flag|O_NOFOLLOW|O_CLOEXEC|O_NONBLOCK, mode);
36 pthread_setcancelstate(cs, 0);
40 int shm_unlink(const char *name)
42 char buf[NAME_MAX+10];
43 if (!(name = __shm_mapname(name, buf))) return -1;