diff options
Diffstat (limited to 'support')
| -rw-r--r-- | support/Makefile | 3 | ||||
| -rw-r--r-- | support/support-xfstat.c | 28 | ||||
| -rw-r--r-- | support/xftruncate.c | 27 | ||||
| -rw-r--r-- | support/xlseek.c | 29 | ||||
| -rw-r--r-- | support/xunistd.h | 3 |
5 files changed, 90 insertions, 0 deletions
diff --git a/support/Makefile b/support/Makefile index bfde79333e..8458840cd8 100644 --- a/support/Makefile +++ b/support/Makefile @@ -36,6 +36,7 @@ libsupport-routines = \ oom_error \ resolv_test \ set_fortify_handler \ + support-xfstat \ support-xstat \ support_become_root \ support_can_chroot \ @@ -73,8 +74,10 @@ libsupport-routines = \ xfclose \ xfopen \ xfork \ + xftruncate \ xgetsockname \ xlisten \ + xlseek \ xmalloc \ xmemstream \ xmkdir \ diff --git a/support/support-xfstat.c b/support/support-xfstat.c new file mode 100644 index 0000000000..4c8ee9142b --- /dev/null +++ b/support/support-xfstat.c @@ -0,0 +1,28 @@ +/* fstat64 with error checking. + Copyright (C) 2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <support/check.h> +#include <support/xunistd.h> +#include <sys/stat.h> + +void +xfstat (int fd, struct stat64 *result) +{ + if (fstat64 (fd, result) != 0) + FAIL_EXIT1 ("fstat64 (%d): %m", fd); +} diff --git a/support/xftruncate.c b/support/xftruncate.c new file mode 100644 index 0000000000..9c4e9e3050 --- /dev/null +++ b/support/xftruncate.c @@ -0,0 +1,27 @@ +/* ftruncate with error checking. + Copyright (C) 2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <support/check.h> +#include <support/xunistd.h> + +void +xftruncate (int fd, long long length) +{ + if (ftruncate64 (fd, length) != 0) + FAIL_EXIT1 ("ftruncate64 (%d, %lld): %m", fd, length); +} diff --git a/support/xlseek.c b/support/xlseek.c new file mode 100644 index 0000000000..0a75a9f2e6 --- /dev/null +++ b/support/xlseek.c @@ -0,0 +1,29 @@ +/* lseek with error checking. + Copyright (C) 2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <support/check.h> +#include <support/xunistd.h> + +long long +xlseek (int fd, long long offset, int whence) +{ + long long result = lseek64 (fd, offset, whence); + if (result < 0) + FAIL_EXIT1 ("lseek64 (%d, %lld, %d): %m", fd, offset, whence); + return result; +} diff --git a/support/xunistd.h b/support/xunistd.h index 00376f7aae..29da063c15 100644 --- a/support/xunistd.h +++ b/support/xunistd.h @@ -36,10 +36,13 @@ void xpipe (int[2]); void xdup2 (int, int); int xopen (const char *path, int flags, mode_t); void xstat (const char *path, struct stat64 *); +void xfstat (int fd, struct stat64 *); void xmkdir (const char *path, mode_t); void xchroot (const char *path); void xunlink (const char *path); long xsysconf (int name); +long long xlseek (int fd, long long offset, int whence); +void xftruncate (int fd, long long length); /* Read the link at PATH. The caller should free the returned string with free. */ |