diff options
Diffstat (limited to 'winsup/cygwin/cygheap.h')
-rw-r--r-- | winsup/cygwin/cygheap.h | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h deleted file mode 100644 index 6f81eaa..0000000 --- a/winsup/cygwin/cygheap.h +++ /dev/null @@ -1,328 +0,0 @@ -/* cygheap.h: Cygwin heap manager. - - Copyright 2000, 2001, 2002 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#undef cfree - -enum cygheap_types -{ - HEAP_FHANDLER, - HEAP_STR, - HEAP_ARGV, - HEAP_BUF, - HEAP_MOUNT, - HEAP_1_START, - HEAP_1_STR, - HEAP_1_ARGV, - HEAP_1_BUF, - HEAP_1_EXEC, - HEAP_1_MAX = 100 -}; - -#define incygheap(s) (cygheap && ((char *) (s) >= (char *) cygheap) && ((char *) (s) <= ((char *) cygheap_max))) - -struct _cmalloc_entry -{ - union - { - DWORD b; - char *ptr; - }; - struct _cmalloc_entry *prev; - char data[0]; -}; - -struct cygheap_root_mount_info -{ - char posix_path[MAX_PATH]; - unsigned posix_pathlen; - char native_path[MAX_PATH]; - unsigned native_pathlen; -}; - -/* CGF: FIXME This doesn't belong here */ - -class cygheap_root -{ - /* Root directory information. - This is used after a chroot is called. */ - struct cygheap_root_mount_info *m; - -public: - bool posix_ok (const char *path) - { - if (!m) - return 1; - return path_prefix_p (m->posix_path, path, m->posix_pathlen); - } - bool ischroot_native (const char *path) - { - if (!m) - return 1; - return strncasematch (m->native_path, path, m->native_pathlen) - && (path[m->native_pathlen] == '\\' || !path[m->native_pathlen]); - } - const char *unchroot (const char *path) - { - if (!m) - return path; - const char *p = path + m->posix_pathlen; - if (!*p) - p = "/"; - return p; - } - bool exists () {return !!m;} - void set (const char *posix, const char *native); - size_t posix_length () const { return m->posix_pathlen; } - const char *posix_path () const { return m->posix_path; } - size_t native_length () const { return m->native_pathlen; } - const char *native_path () const { return m->native_path; } -}; - -enum homebodies -{ - CH_HOMEDRIVE, - CH_HOMEPATH, - CH_HOME -}; - -struct passwd; - -class cygheap_user -{ - /* Extendend user information. - The information is derived from the internal_getlogin call - when on a NT system. */ - char *pname; /* user's name */ - char *plogsrv; /* Logon server, may be FQDN */ - char *pdomain; /* Logon domain of the user */ - char *homedrive; /* User's home drive */ - char *homepath; /* User's home path */ - char *pwinname; /* User's name as far as Windows knows it */ - char *puserprof; /* User profile */ - PSID psid; /* buffer for user's SID */ - PSID orig_psid; /* Remains intact even after impersonation */ -public: - __uid32_t orig_uid; /* Remains intact even after impersonation */ - __gid32_t orig_gid; /* Ditto */ - __uid32_t real_uid; /* Remains intact on seteuid, replaced by setuid */ - __gid32_t real_gid; /* Ditto */ - user_groups groups; /* Primary and supp SIDs */ - - /* token is needed if set(e)uid should be called. It can be set by a call - to `set_impersonation_token()'. */ - HANDLE token; - BOOL impersonated; - - /* CGF 2002-06-27. I removed the initializaton from this constructor - since this class is always allocated statically. That means that everything - is zero anyway so there is no need to initialize it to zero. Since the - token initialization is always handled during process startup as well, - I've removed the constructor entirely. Please reinstate this f this - situation ever changes. - cygheap_user () : pname (NULL), plogsrv (NULL), pdomain (NULL), - homedrive (NULL), homepath (NULL), psid (NULL), - token (INVALID_HANDLE_VALUE) {} - */ - - ~cygheap_user (); - - void set_name (const char *new_name); - const char *name () const { return pname; } - - const char *env_logsrv (const char *, size_t); - const char *env_homepath (const char *, size_t); - const char *env_homedrive (const char *, size_t); - const char *env_userprofile (const char *, size_t); - const char *env_domain (const char *, size_t); - const char *env_name (const char *, size_t); - - const char *logsrv () - { - const char *p = env_logsrv ("LOGONSERVER=", sizeof ("LOGONSERVER=") - 1); - return (p == almost_null) ? NULL : p; - } - const char *winname () - { - const char *p = env_name ("USERNAME=", sizeof ("USERNAME=") - 1); - return (p == almost_null) ? NULL : p; - } - const char *domain () - { - const char *p = env_domain ("USERDOMAIN=", sizeof ("USERDOMAIN=") - 1); - return (p == almost_null) ? NULL : p; - } - BOOL set_sid (PSID new_sid); - BOOL set_orig_sid (); - PSID sid () const { return psid; } - PSID orig_sid () const { return orig_psid; } - const char *ontherange (homebodies what, struct passwd * = NULL); - bool issetuid () const - { - return impersonated && token != INVALID_HANDLE_VALUE; - } - const char *cygheap_user::test_uid (char *&, const char *, size_t) - __attribute__ ((regparm (3))); -}; - -/* cwd cache stuff. */ - -class muto; - -struct cwdstuff -{ - char *posix; - char *win32; - DWORD hash; - muto *cwd_lock; - char *get (char *buf, int need_posix = 1, int with_chroot = 0, unsigned ulen = MAX_PATH); - DWORD get_hash (); - void init (); - void fixup_after_exec (char *win32, char *posix, DWORD hash); - bool get_initial (); - void set (const char *win32_cwd, const char *posix_cwd = NULL); -}; - -#ifdef DEBUGGING -struct cygheap_debug -{ - handle_list starth; - handle_list *endh; - handle_list freeh[500]; -}; -#endif - -struct init_cygheap -{ - _cmalloc_entry *chain; - char *buckets[32]; - struct /* User heap stuff. */ - { - void *heapbase; - void *heapptr; - void *heaptop; - }; - cygheap_root root; - cygheap_user user; - mode_t umask; - HANDLE shared_h; - HANDLE console_h; - HANDLE etc_changed_h; - char *cygwin_regname; - cwdstuff cwd; - dtable fdtab; -#ifdef DEBUGGING - cygheap_debug debug; -#endif - - bool etc_changed (); -}; - -#define CYGHEAPSIZE (sizeof (init_cygheap) + (4000 * sizeof (fhandler_union)) + (2 * 65536)) - -extern init_cygheap *cygheap; -extern void *cygheap_max; - -class cygheap_fdmanip -{ - protected: - int fd; - fhandler_base **fh; - bool locked; - public: - cygheap_fdmanip (): fh (NULL) {} - virtual ~cygheap_fdmanip () - { - if (locked) - ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdmanip"); - } - void release () - { - cygheap->fdtab.release (fd); - } - operator int &() {return fd;} - operator fhandler_base* &() {return *fh;} - void operator = (fhandler_base *fh) {*this->fh = fh;} - fhandler_base *operator -> () const {return *fh;} - bool isopen () const - { - if (*fh) - return true; - set_errno (EBADF); - return false; - } -}; - -class cygheap_fdnew : public cygheap_fdmanip -{ - public: - cygheap_fdnew (int seed_fd = -1, bool lockit = true) - { - if (lockit) - SetResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdnew"); - if (seed_fd < 0) - fd = cygheap->fdtab.find_unused_handle (); - else - fd = cygheap->fdtab.find_unused_handle (seed_fd + 1); - if (fd >= 0) - { - locked = lockit; - fh = cygheap->fdtab + fd; - } - else - { - set_errno (EMFILE); - if (lockit) - ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdnew"); - locked = false; - } - } - void operator = (fhandler_base *fh) {*this->fh = fh;} -}; - -class cygheap_fdget : public cygheap_fdmanip -{ - public: - cygheap_fdget (int fd, bool lockit = false, bool do_set_errno = true) - { - if (lockit) - SetResourceLock (LOCK_FD_LIST, READ_LOCK, "cygheap_fdget"); - if (fd >= 0 && fd < (int) cygheap->fdtab.size - && *(fh = cygheap->fdtab + fd) != NULL) - { - this->fd = fd; - locked = lockit; - } - else - { - this->fd = -1; - if (do_set_errno) - set_errno (EBADF); - if (lockit) - ReleaseResourceLock (LOCK_FD_LIST, READ_LOCK, "cygheap_fdget"); - locked = false; - } - } -}; - -class child_info; -void *__stdcall cygheap_setup_for_child (child_info *ci, bool dup_later) __attribute__ ((regparm(2))); -void __stdcall cygheap_setup_for_child_cleanup (void *, child_info *, bool) __attribute__ ((regparm(3))); -void __stdcall cygheap_fixup_in_child (bool); -extern "C" { -void __stdcall cfree (void *) __attribute__ ((regparm(1))); -void *__stdcall cmalloc (cygheap_types, DWORD) __attribute__ ((regparm(2))); -void *__stdcall crealloc (void *, DWORD) __attribute__ ((regparm(2))); -void *__stdcall ccalloc (cygheap_types, DWORD, DWORD) __attribute__ ((regparm(3))); -char *__stdcall cstrdup (const char *) __attribute__ ((regparm(1))); -char *__stdcall cstrdup1 (const char *) __attribute__ ((regparm(1))); -void __stdcall cfree_and_set (char *&, char * = NULL) __attribute__ ((regparm(2))); -void __stdcall cygheap_init (); -extern DWORD _cygheap_start; -} |