From 26cec518ac1aa45492d8668eed3af920d866b32b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 11 Nov 2005 20:02:07 +0000 Subject: * io/Makefile (routines): Add fstatat, fstatat64, fxstatat, fxstatat64, fchownat, and unlinkat. (static-only-routines): Add fstatat and fstatat64. (tests): Add tst-unlinkat, tst-fstatat, tst-futimesat, tst-renameat, and tst-fchownat. * io/Versions [GLIBC_2.4]: Add fchownat, __fxstatat, __fxstatat64, and unlinkat. * io/fcntl.h: Define AT_FDCWD, AT_SYMLINK_NOFOLLOW, and AT_REMOVEDIR. * io/fstatat.c: New file. * io/fstatat64.c: New file. * io/sys/stat.h: Declare fstatat, fstatat64, __fxstatat, __fxstatat64 and define fstatat and fstatat64 inline functions. * libio/stdio.h: Declare renameat. * misc/Makefile (routines): Add futimesat. * misc/Versions [GLIBC_2.4]: Add futimesat. * posix/unistd.h: Declare fchownat and unlinkat. * stdio-common/Makefile (routines): Add renameat. * stdio-common/Versions [GLIBC_2.4]: Add renameat. * sysdeps/generic/fchownat.c: New file. * sysdeps/generic/futimesat.c: New file. * sysdeps/generic/fxstatat.c: New file. * sysdeps/generic/fxstatat64.c: New file. * sysdeps/generic/renameat.c: New file. * sysdeps/generic/unlinkat.c: New file. * sysdeps/unix/sysv/linux/fchownat.c: New file. * sysdeps/unix/sysv/linux/futimesat.c: New file. * sysdeps/unix/sysv/linux/fxstatat.c: New file. * sysdeps/unix/sysv/linux/fxstatat64.c: New file. * sysdeps/unix/sysv/linux/renameat.c: New file. * sysdeps/unix/sysv/linux/unlinkat.c: New file. * sysdeps/unix/sysv/linux/alpha/fxstatat.c: New file. * sysdeps/unix/sysv/linux/i386/fchownat.c: New file. * sysdeps/unix/sysv/linux/i386/fxstatat.c: New file. * sysdeps/unix/sysv/linux/m68k/fchownat.c: New file. * sysdeps/unix/sysv/linux/m68k/fxstatat.c: New file. * sysdeps/unix/sysv/linux/powerpc/fchownat.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fxstatat.c: New file. * sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c: New file. * sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c: New file. * sysdeps/unix/sysv/linux/sh/fchownat.c: New file. * sysdeps/unix/sysv/linux/sh/fxstatat.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/fxstatat.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/fxstatat.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/fxstatat64.c: New file. * time/sys/time.h: Declare futimesat. * include/fcntl.h: Declare __atfct_seterrno. * sysdeps/unix/sysv/linux/openat.c (__atfct_seterrno): New function. Split out from openat code and called. (do_test): Allow openat to fail with ENOSYS. Handle AT_FDCWD. * sysdeps/generic/openat.c: Handle AT_FDCWD. * sysdeps/generic/openat64.c: Likewise. * io/tst-unlinkat.c: New file. * io/tst-fstatat.c: New file. * io/tst-futimesat.c: New file. * io/tst-renameat.c: New file. * io/tst-fchownat.c: New file. * io/tst-openat.c: Don't fail if openat is not implemented. * sysdeps/unix/sysv/linux/powerpc/chown.c: Don't provide backward compatibility code if new kernel is guaranteed. * time/sys/time.h: Add a few nonnull attributes. --- io/tst-fchownat.c | 145 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 io/tst-fchownat.c (limited to 'io/tst-fchownat.c') diff --git a/io/tst-fchownat.c b/io/tst-fchownat.c new file mode 100644 index 0000000000..0cbf78b2b0 --- /dev/null +++ b/io/tst-fchownat.c @@ -0,0 +1,145 @@ +#include +#include +#include +#include +#include +#include + + +static void prepare (void); +#define PREPARE(argc, argv) prepare () + +static int do_test (void); +#define TEST_FUNCTION do_test () + +#include "../test-skeleton.c" + +static int dir_fd; + +static void +prepare (void) +{ +#if _POSIX_CHOWN_RESTRICTED > 0 + uid_t uid = getuid (); + if (uid != 0) + { + puts ("need root privileges"); + exit (0); + } +#endif + + size_t test_dir_len = strlen (test_dir); + static const char dir_name[] = "/tst-fchownat.XXXXXX"; + + size_t dirbuflen = test_dir_len + sizeof (dir_name); + char *dirbuf = malloc (dirbuflen); + if (dirbuf == NULL) + { + puts ("out of memory"); + exit (1); + } + + snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name); + if (mkdtemp (dirbuf) == NULL) + { + puts ("cannot create temporary directory"); + exit (1); + } + + add_temp_file (dirbuf); + + dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY); + if (dir_fd == -1) + { + puts ("cannot open directory"); + exit (1); + } +} + + +static int +do_test (void) +{ + /* fdopendir takes over the descriptor, make a copy. */ + int dupfd = dup (dir_fd); + if (dupfd == -1) + { + puts ("dup failed"); + return 1; + } + if (lseek (dupfd, 0, SEEK_SET) != 0) + { + puts ("1st lseek failed"); + return 1; + } + + /* The directory should be empty safe the . and .. files. */ + DIR *dir = fdopendir (dupfd); + if (dir == NULL) + { + puts ("fdopendir failed"); + return 1; + } + struct dirent64 *d; + while ((d = readdir64 (dir)) != NULL) + if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) + { + printf ("temp directory contains file \"%s\"\n", d->d_name); + return 1; + } + closedir (dir); + + /* Try to create a file. */ + int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); + if (fd == -1) + { + if (errno == ENOSYS) + { + puts ("*at functions not supported"); + return 0; + } + + puts ("file creation failed"); + return 1; + } + write (fd, "hello", 5); + puts ("file created"); + + struct stat64 st1; + if (fstat64 (fd, &st1) != 0) + { + puts ("fstat64 failed"); + return 1; + } + + close (fd); + + if (fchownat (dir_fd, "some-file", st1.st_uid + 1, st1.st_gid + 1, 0) != 0) + { + puts ("fchownat failed"); + return 1; + } + + struct stat64 st2; + if (fstatat64 (dir_fd, "some-file", &st2, 0) != 0) + { + puts ("fstatat64 failed"); + return 1; + } + + if (st1.st_uid + 1 != st2.st_uid || st1.st_gid + 1 != st2.st_gid) + { + puts ("owner change failed"); + return 1; + } + + if (unlinkat (dir_fd, "some-file", 0) != 0) + { + puts ("unlinkat failed"); + return 1; + } + + close (dir_fd); + + return 0; +} -- cgit v1.2.3