diff options
Diffstat (limited to 'guts/README')
| -rw-r--r-- | guts/README | 93 |
1 files changed, 71 insertions, 22 deletions
diff --git a/guts/README b/guts/README index be00d30..277f712 100644 --- a/guts/README +++ b/guts/README @@ -28,26 +28,32 @@ some difference -- the structure they manipulate is not the same. The following table shows which functions are merely wrappers around other functions: - chmod: fchmodat - chown: fchownat - creat64: openat - creat: openat - __fxstatat: __fxstatat64 - __fxstat: __fxstat64 - __lxstat64: __fxstatat64 - __lxstat: __fxstatat - mkdir: mkdirat - open64: openat - __openat_2: openat - __openat64_2: openat - openat64: openat - open: openat - rename: renameat - symlink: symlinkat - unlink: unlinkat - __xmknod: __xmknodat - __xstat64: __fxstatat64 - __xstat: __fxstatat + canonicalize_file_name: realpath + chmod: fchmodat + chown: fchownat + creat64: openat + creat: openat + __fxstatat: __fxstatat64 + __fxstat: __fxstat64 + get_current_dir_name: getcwd + getwd: getcwd + __lxstat64: __fxstatat64 + __lxstat: __fxstatat + mkdir: mkdirat + mkfifoat: __xmknodat + mkfifo: mkfifoat + open64: openat + __openat_2: openat + __openat64_2: openat + openat64: openat + open: openat + remove: unlink or rmdir + rename: renameat + symlink: symlinkat + unlink: unlinkat + __xmknod: __xmknodat + __xstat64: __fxstatat64 + __xstat: __fxstatat The following functions are full implementations: @@ -59,10 +65,10 @@ The following functions are full implementations: fchownat __fxstat64 __fxstatat64 + getcwd lchown mkdirat openat - renameat rmdir symlinkat unlinkat @@ -71,7 +77,7 @@ The following functions are full implementations: The following functions provide only partial implementations, to trap special cases, to track internal data structures (for instance, close() is tracked so that the path to a file descriptor can be dropped when the file descriptor -is closed), or to handle functions which may not use the underlying syscall +is closed), or to handle functions which may not use the underlying syscall wrappers: close @@ -81,6 +87,7 @@ wrappers: fopen fopen64 freopen + freopen64 mkstemp fcntl fork @@ -107,3 +114,45 @@ but are used to simulate the permissions system: getresuid setfsuid setresuid + +The following functions are present only to allow filename mangling +for chroot(2) implementation. Most of them have no logic beyond +calling the underlying routine. + + access + acct + chroot + eaccess + euidaccess + fts_open + ftw64 + ftw + glob64 + glob + lutimes + mkdtemp + mktemp + nftw64 + nftw + opendir + pathconf + readlinkat + readlink + realpath + scandir64 + scandir + truncate64 + truncate + utime + utimes + +The following functions are unimplemented. renameat could be done now (it +would have been hard previously due to file name mangling issues), but +since it's never come up, we haven't done it. The tempnam() functions are +fairly hard to get right, and perhaps more imporantly, extremely +dangerous. Since there's no evidence that they're in use anymore, I've +dummied them out: + + renameat + tempnam + tmpnam |