| #include <errno.h> |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <unistd.h> |
| |
| static int check_name(const char* name) { |
| while (*name == '/') |
| name++; |
| if (name[0] == '\0' || !strcmp(name, ".") || !strcmp(name, "..")) { |
| errno = EINVAL; |
| } else if (strlen(name) > NAME_MAX) { |
| errno = ENAMETOOLONG; |
| } else { |
| errno = ENOENT; |
| } |
| return -1; |
| } |
| |
| int shm_open(const char* name, int flag, mode_t mode) { return check_name(name); } |
| |
| int shm_unlink(const char* name) { return check_name(name); } |