diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/mkdirat.c | 58 | ||||
| -rw-r--r-- | sysdeps/generic/mkfifoat.c | 60 | ||||
| -rw-r--r-- | sysdeps/generic/mknodat.c | 60 | ||||
| -rw-r--r-- | sysdeps/generic/xmknodat.c | 63 | ||||
| -rw-r--r-- | sysdeps/unix/mkfifoat.c | 32 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/mkdirat.c | 66 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/xmknodat.c | 75 |
7 files changed, 414 insertions, 0 deletions
diff --git a/sysdeps/generic/mkdirat.c b/sysdeps/generic/mkdirat.c new file mode 100644 index 0000000000..ccea3aa8d8 --- /dev/null +++ b/sysdeps/generic/mkdirat.c @@ -0,0 +1,58 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <stddef.h> +#include <sys/stat.h> +#include <sys/types.h> + + +/* Create a directory named PATH relative to FD with protections MODE. */ +int +mkdirat (fd, path, mode) + int fd; + const char *path; + mode_t mode; +{ + if (path == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (fd != AT_FDCWD && path[0] != '/') + { + /* Check FD is associated with a directory. */ + struct stat64 st; + if (__fxstat64 (_STAT_VER, fd, &st) != 0) + return -1; + + if (!S_ISDIR (st.st_mode)) + { + __set_errno (ENOTDIR); + return -1; + } + } + + __set_errno (ENOSYS); + return -1; +} +stub_warning (mkdirat) + +#include <stub-tag.h> diff --git a/sysdeps/generic/mkfifoat.c b/sysdeps/generic/mkfifoat.c new file mode 100644 index 0000000000..48c38c8182 --- /dev/null +++ b/sysdeps/generic/mkfifoat.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <stddef.h> +#include <sys/stat.h> +#include <sys/types.h> + + +/* Create a named pipe (FIFO) named PATH relative to FD with + protections MODE. */ +int +mkfifoat (fd, path, mode) + int fd; + const char *path; + mode_t mode; +{ + if (path == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (fd != AT_FDCWD && path[0] != '/') + { + /* Check FD is associated with a directory. */ + struct stat64 st; + if (__fxstat64 (_STAT_VER, fd, &st) != 0) + return -1; + + if (!S_ISDIR (st.st_mode)) + { + __set_errno (ENOTDIR); + return -1; + } + } + + __set_errno (ENOSYS); + return -1; +} + + +stub_warning (mkfifoat) +#include <stub-tag.h> diff --git a/sysdeps/generic/mknodat.c b/sysdeps/generic/mknodat.c new file mode 100644 index 0000000000..ac515b5b48 --- /dev/null +++ b/sysdeps/generic/mknodat.c @@ -0,0 +1,60 @@ +/* Copyright (C) 1995, 1996, 2001, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The GNU Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + Note that people who make modified versions of this file are not + obligated to grant this special exception for their modified + versions; it is their choice whether to do so. The GNU Lesser + General Public License gives permission to release a modified + version without this exception; this exception also makes it + possible to release a modified version which carries forward this + exception. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + +#include <sys/types.h> +#include <sys/stat.h> + +/* This definition is only used if inlining fails for this function; see + the last page of <sys/stat.h>. The real work is done by the `x' + function which is passed a version number argument. We arrange in the + makefile that when not inlined this function is always statically + linked; that way a dynamically-linked executable always encodes the + version number corresponding to the data structures it uses, so the `x' + functions in the shared library can adapt without needing to recompile + all callers. */ + +int +mknodat (int fd, const char *path, mode_t mode, dev_t dev) +{ + return __xmknodat (_MKNOD_VER, fd, path, mode, &dev); +} + + +/* Hide the symbol so that no definition but the one locally in the + executable or DSO is used. */ +#ifdef HAVE_DOT_HIDDEN +asm (".hidden\tmknodat"); +#endif diff --git a/sysdeps/generic/xmknodat.c b/sysdeps/generic/xmknodat.c new file mode 100644 index 0000000000..56d88c7b0f --- /dev/null +++ b/sysdeps/generic/xmknodat.c @@ -0,0 +1,63 @@ +/* Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <sys/types.h> +#include <sys/stat.h> + +/* Create a device file named PATH relative to FD, with permission and + special bits MODE and device number DEV (which can be constructed + from major and minor device numbers with the `makedev' macro + above). */ +int +__xmknodat (int vers, int fd, const char *path, mode_t mode, dev_t *dev) +{ + if (vers != _MKNOD_VER) + { + __set_errno (EINVAL); + return -1; + } + + if (path == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (fd != AT_FDCWD && path[0] != '/') + { + /* Check FD is associated with a directory. */ + struct stat64 st; + if (__fxstat64 (_STAT_VER, fd, &st) != 0) + return -1; + + if (!S_ISDIR (st.st_mode)) + { + __set_errno (ENOTDIR); + return -1; + } + } + + __set_errno (ENOSYS); + return -1; +} +stub_warning (__xmknodat) + +libc_hidden_def (__xmknodat) +#include <stub-tag.h> diff --git a/sysdeps/unix/mkfifoat.c b/sysdeps/unix/mkfifoat.c new file mode 100644 index 0000000000..5c4da2a982 --- /dev/null +++ b/sysdeps/unix/mkfifoat.c @@ -0,0 +1,32 @@ +/* Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sys/stat.h> + + +/* Create a new FIFO with permission bits MODE. But interpret + relative PATH names relative to the directory associated with FD. */ +int +mkfifoat (fd, file, mode) + int fd; + const char *file; + mode_t mode; +{ + dev_t dev = 0; + return __xmknodat (_MKNOD_VER, fd, file, mode | S_IFIFO, &dev); +} diff --git a/sysdeps/unix/sysv/linux/mkdirat.c b/sysdeps/unix/sysv/linux/mkdirat.c new file mode 100644 index 0000000000..367441b05b --- /dev/null +++ b/sysdeps/unix/sysv/linux/mkdirat.c @@ -0,0 +1,66 @@ +/* Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#include <sysdep-cancel.h> + + +/* Create a new directory with permission bits MODE. But interpret + relative PATH names relative to the directory associated with FD. */ +int +mkdirat (fd, file, mode) + int fd; + const char *file; + mode_t mode; +{ + char *buf = NULL; + + if (fd != AT_FDCWD && file[0] != '/') + { + size_t filelen = strlen (file); + static const char procfd[] = "/proc/self/fd/%d/%s"; + /* Buffer for the path name we are going to use. It consists of + - the string /proc/self/fd/ + - the file descriptor number + - the file name provided. + The final NUL is included in the sizeof. A bit of overhead + due to the format elements compensates for possible negative + numbers. */ + size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen; + buf = alloca (buflen); + + __snprintf (buf, buflen, procfd, fd, file); + file = buf; + } + + INTERNAL_SYSCALL_DECL (err); + int res = INTERNAL_SYSCALL (mkdir, err, 2, file, mode); + + if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0)) + { + __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (res, err), fd, buf); + res = -1; + } + + return res; +} diff --git a/sysdeps/unix/sysv/linux/xmknodat.c b/sysdeps/unix/sysv/linux/xmknodat.c new file mode 100644 index 0000000000..9332ae683e --- /dev/null +++ b/sysdeps/unix/sysv/linux/xmknodat.c @@ -0,0 +1,75 @@ +/* Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/sysmacros.h> + +#include <sysdep.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +/* Create a device file named PATH relative to FD, with permission and + special bits MODE and device number DEV (which can be constructed + from major and minor device numbers with the `makedev' macro above). */ +int +__xmknodat (int vers, int fd, const char *file, mode_t mode, dev_t *dev) +{ + if (vers != _MKNOD_VER) + { + __set_errno (EINVAL); + return -1; + } + + char *buf = NULL; + + if (fd != AT_FDCWD && file[0] != '/') + { + size_t filelen = strlen (file); + static const char procfd[] = "/proc/self/fd/%d/%s"; + /* Buffer for the path name we are going to use. It consists of + - the string /proc/self/fd/ + - the file descriptor number + - the file name provided. + The final NUL is included in the sizeof. A bit of overhead + due to the format elements compensates for possible negative + numbers. */ + size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen; + buf = alloca (buflen); + + __snprintf (buf, buflen, procfd, fd, file); + file = buf; + } + + /* We must convert the value to dev_t type used by the kernel. */ + unsigned long long int k_dev = (*dev) & ((1ULL << 32) - 1); + if (k_dev != *dev) + { + __set_errno (EINVAL); + return -1; + } + + return INLINE_SYSCALL (mknod, 3, CHECK_STRING (file), mode, + (unsigned int) k_dev); +} + +libc_hidden_def (__xmknodat) |