diff options
Diffstat (limited to 'sysdeps')
28 files changed, 50 insertions, 1572 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/dl-fxstatat64.c b/sysdeps/unix/sysv/linux/alpha/dl-fxstatat64.c index 41e83bcf11..330b33f7c7 100644 --- a/sysdeps/unix/sysv/linux/alpha/dl-fxstatat64.c +++ b/sysdeps/unix/sysv/linux/alpha/dl-fxstatat64.c @@ -1,9 +1 @@ -/* In this implementation we do not really care whether the call fails - because of missing kernel support since we do not even call the - function in this case. */ -/* For Alpha, in <kernel-features.h> we redefine the default definition of - when __ASSUME_ATFCTS is present. The hack must wait until after that. */ -#include <kernel-features.h> -#undef __ASSUME_ATFCTS -#define __ASSUME_ATFCTS 1 #include "fxstatat.c" diff --git a/sysdeps/unix/sysv/linux/alpha/fxstatat.c b/sysdeps/unix/sysv/linux/alpha/fxstatat.c index a7312068e5..26fe428859 100644 --- a/sysdeps/unix/sysv/linux/alpha/fxstatat.c +++ b/sysdeps/unix/sysv/linux/alpha/fxstatat.c @@ -29,10 +29,6 @@ #undef __fxstatat64 -#ifdef __ASSUME_ATFCTS -# define __have_atfcts 1 -#endif - /* Get information about the file NAME in BUF. */ int __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag) @@ -45,67 +41,11 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag) cannot actually check this, lest the compiler not optimize the rest of the function away. */ -#ifdef __NR_fstatat64 - if (__have_atfcts >= 0) - { - result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); - if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - return result; - errno_out = INTERNAL_SYSCALL_ERRNO (result, err); -#ifndef __ASSUME_ATFCTS - if (errno_out == ENOSYS) - __have_atfcts = -1; - else -#endif - { - __set_errno (errno_out); - return -1; - } - } -#endif /* __NR_fstatat64 */ - - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__builtin_expect (filelen == 0, 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat64, err, 2, file, st); - else - result = INTERNAL_SYSCALL (stat64, err, 2, file, st); + result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)) return result; - errno_out = INTERNAL_SYSCALL_ERRNO (result, err); - __atfct_seterrno (errno_out, fd, buf); - + __set_errno (errno_out); return -1; } libc_hidden_def (__fxstatat) diff --git a/sysdeps/unix/sysv/linux/dl-fxstatat64.c b/sysdeps/unix/sysv/linux/dl-fxstatat64.c index 1f8c2e6415..d229d0ea0f 100644 --- a/sysdeps/unix/sysv/linux/dl-fxstatat64.c +++ b/sysdeps/unix/sysv/linux/dl-fxstatat64.c @@ -1,6 +1 @@ -/* In this implementation we do not really care whether the call fails - because of missing kernel support since we do not even call the - function in this case. */ -#undef __ASSUME_ATFCTS -#define __ASSUME_ATFCTS 1 #include <fxstatat64.c> diff --git a/sysdeps/unix/sysv/linux/faccessat.c b/sysdeps/unix/sysv/linux/faccessat.c index c00f431a45..4a6048ec79 100644 --- a/sysdeps/unix/sysv/linux/faccessat.c +++ b/sysdeps/unix/sysv/linux/faccessat.c @@ -24,7 +24,6 @@ #include <unistd.h> #include <sys/types.h> #include <alloca.h> -#include <kernel-features.h> #include <sysdep.h> @@ -41,76 +40,8 @@ faccessat (fd, file, mode, flag) return -1; } -#ifdef __NR_faccessat - if ((flag == 0 || ((flag & ~AT_EACCESS) == 0 && ! __libc_enable_secure)) -# ifndef __ASSUME_ATFCTS - && __have_atfcts >= 0 -# endif - ) - { - int result = INLINE_SYSCALL (faccessat, 3, fd, file, mode); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if ((!(flag & AT_EACCESS) || ! __libc_enable_secure) -# ifndef __NR_laccess /* Linux so far has no laccess syscall. */ - && !(flag & AT_SYMLINK_NOFOLLOW) -# endif - ) - { - /* If we are not set-uid or set-gid, access does the same. */ - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - int result; - INTERNAL_SYSCALL_DECL (err); - -# ifdef __NR_laccess - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (laccess, err, 2, file, mode); - else -# endif - result = INTERNAL_SYSCALL (access, err, 2, file, mode); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; - } -#endif + if ((flag == 0 || ((flag & ~AT_EACCESS) == 0 && ! __libc_enable_secure))) + return INLINE_SYSCALL (faccessat, 3, fd, file, mode); struct stat64 stats; if (__fxstatat64 (_STAT_VER, fd, file, &stats, flag & AT_SYMLINK_NOFOLLOW)) diff --git a/sysdeps/unix/sysv/linux/fchmodat.c b/sysdeps/unix/sysv/linux/fchmodat.c index 4d3e43e371..446789958f 100644 --- a/sysdeps/unix/sysv/linux/fchmodat.c +++ b/sysdeps/unix/sysv/linux/fchmodat.c @@ -24,7 +24,6 @@ #include <unistd.h> #include <sys/types.h> #include <alloca.h> -#include <kernel-features.h> #include <sysdep.h> int @@ -47,65 +46,5 @@ fchmodat (fd, file, mode, flag) } #endif - int result; - -#ifdef __NR_fchmodat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (fchmodat, 3, fd, file, mode); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - -# ifdef __NR_lchmod - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lchmod, err, 2, file, mode); - else -# endif - result = INTERNAL_SYSCALL (chmod, err, 2, file, mode); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (fchmodat, 3, fd, file, mode); } diff --git a/sysdeps/unix/sysv/linux/fchownat.c b/sysdeps/unix/sysv/linux/fchownat.c index 196b8005c3..fae1256af7 100644 --- a/sysdeps/unix/sysv/linux/fchownat.c +++ b/sysdeps/unix/sysv/linux/fchownat.c @@ -24,9 +24,10 @@ #include <sys/types.h> #include <alloca.h> #include <sysdep.h> -#include <kernel-features.h> +/* Consider moving to syscalls.list. */ + /* Change the owner and group of FILE. */ int fchownat (fd, file, owner, group, flag) @@ -36,69 +37,5 @@ fchownat (fd, file, owner, group, flag) gid_t group; int flag; { - int result; - -#ifdef __NR_fchownat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lchown, err, 3, file, owner, group); - else - result = INTERNAL_SYSCALL (chown, err, 3, file, owner, group); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag); } diff --git a/sysdeps/unix/sysv/linux/futimesat.c b/sysdeps/unix/sysv/linux/futimesat.c index 89ea20b121..4993d09bb0 100644 --- a/sysdeps/unix/sysv/linux/futimesat.c +++ b/sysdeps/unix/sysv/linux/futimesat.c @@ -23,7 +23,6 @@ #include <utime.h> #include <sys/time.h> #include <sysdep.h> -#include <kernel-features.h> /* Change the access time of FILE relative to FD to TVP[0] and @@ -34,106 +33,8 @@ futimesat (fd, file, tvp) const char *file; const struct timeval tvp[2]; { - int result; - -#ifdef __NR_futimesat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - if (file == NULL) - return __futimes (fd, tvp); - - result = INLINE_SYSCALL (futimesat, 3, fd, file, tvp); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - if (file == NULL) - { - static const char procfd[] = "/proc/self/fd/%d"; - /* Buffer for the path name we are going to use. It consists of - - the string /proc/self/fd/ - - the file descriptor number. - 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; - buf = alloca (buflen); - - __snprintf (buf, buflen, procfd, fd); - file = buf; - } - else if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - -# ifdef __NR_utimes - result = INTERNAL_SYSCALL (utimes, err, 2, file, tvp); - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) - return result; - -# ifndef __ASSUME_UTIMES - if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS) - goto fail; -# endif -# endif - - /* The utimes() syscall does not exist or is not available in the - used kernel. Use utime(). For this we have to convert to the - data format utime() expects. */ -# ifndef __ASSUME_UTIMES - struct utimbuf tmp; - struct utimbuf *times; - - if (tvp != NULL) - { - times = &tmp; - tmp.actime = tvp[0].tv_sec + tvp[0].tv_usec / 1000000; - tmp.modtime = tvp[1].tv_sec + tvp[1].tv_usec / 1000000; - } - else - times = NULL; - - result = INTERNAL_SYSCALL (utime, err, 2, file, times); - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) - return result; - - fail: -# endif - - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); + return __futimes (fd, tvp); - return -1; -#endif + return INLINE_SYSCALL (futimesat, 3, fd, file, tvp); } diff --git a/sysdeps/unix/sysv/linux/fxstatat.c b/sysdeps/unix/sysv/linux/fxstatat.c index 1ec0922350..d99008e738 100644 --- a/sysdeps/unix/sysv/linux/fxstatat.c +++ b/sysdeps/unix/sysv/linux/fxstatat.c @@ -29,7 +29,6 @@ #include <sysdep.h> #include <sys/syscall.h> -#include <kernel-features.h> #include <xstatconv.h> @@ -45,97 +44,20 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag) struct kernel_stat kst; #endif -#ifdef __NR_newfstatat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif + result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag); + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) { - result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag); -# ifndef __ASSUME_ATFCTS - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1) - && INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS) - __have_atfcts = -1; - else -# endif - if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - { #ifdef STAT_IS_KERNEL_STAT - return 0; + return 0; #else - return __xstat_conv (vers, &kst, st); + return __xstat_conv (vers, &kst, st); #endif - } - else - { - __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); - return -1; - } } -#endif - - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - if (vers == _STAT_VER_KERNEL) - { - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat, err, 2, file, - (struct kernel_stat *) st); - else - result = INTERNAL_SYSCALL (stat, err, 2, file, - (struct kernel_stat *) st); - - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) - return result; - } -#ifdef STAT_IS_KERNEL_STAT else { - __set_errno (EINVAL); + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); return -1; } -#else - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat, err, 2, file, &kst); - else - result = INTERNAL_SYSCALL (stat, err, 2, file, &kst); - - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) - return __xstat_conv (vers, &kst, st); -#endif - - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - - return -1; } libc_hidden_def (__fxstatat) #ifdef XSTAT_IS_XSTAT64 diff --git a/sysdeps/unix/sysv/linux/fxstatat64.c b/sysdeps/unix/sysv/linux/fxstatat64.c index 24bd51bf46..2baa75a7f1 100644 --- a/sysdeps/unix/sysv/linux/fxstatat64.c +++ b/sysdeps/unix/sysv/linux/fxstatat64.c @@ -26,8 +26,6 @@ #include <sysdep.h> #include <sys/syscall.h> -#include <kernel-features.h> - /* Get information about the file NAME in BUF. */ int @@ -42,76 +40,13 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) int result; INTERNAL_SYSCALL_DECL (err); -#ifdef __NR_fstatat64 -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); -# ifndef __ASSUME_ATFCTS - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1) - && INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS) - __have_atfcts = -1; - else -# endif - if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - return 0; - else - { - __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); - return -1; - } - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat64, err, 2, file, st); + result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) + return 0; else - result = INTERNAL_SYSCALL (stat64, err, 2, file, st); - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) { -# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 - if (st->__st_ino != (__ino_t) st->st_ino) - st->st_ino = st->__st_ino; -# endif - return result; + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); + return -1; } - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - - return -1; -#endif } libc_hidden_def (__fxstatat64) diff --git a/sysdeps/unix/sysv/linux/i386/fchownat.c b/sysdeps/unix/sysv/linux/i386/fchownat.c deleted file mode 100644 index 5c2359c8b5..0000000000 --- a/sysdeps/unix/sysv/linux/i386/fchownat.c +++ /dev/null @@ -1,101 +0,0 @@ -/* Copyright (C) 2005-2014 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 <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include <sysdep.h> -#include <sys/syscall.h> -#include <shlib-compat.h> - -#include <linux/posix_types.h> -#include <kernel-features.h> - - -int -fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag) -{ - int result; - -#ifdef __NR_fchownat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lchown32, err, 3, file, owner, group); - else - result = INTERNAL_SYSCALL (chown32, err, 3, file, owner, group); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - return -1; - } - - return result; - -#endif -} diff --git a/sysdeps/unix/sysv/linux/i386/fxstatat.c b/sysdeps/unix/sysv/linux/i386/fxstatat.c index 8fdbbb81f5..08a880ab8e 100644 --- a/sysdeps/unix/sysv/linux/i386/fxstatat.c +++ b/sysdeps/unix/sysv/linux/i386/fxstatat.c @@ -30,8 +30,6 @@ #include <sysdep.h> #include <sys/syscall.h> -#include <kernel-features.h> - #include <xstatconv.h> @@ -43,88 +41,14 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag) INTERNAL_SYSCALL_DECL (err); struct stat64 st64; -#ifdef __NR_fstatat64 -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, &st64, flag); -# ifndef __ASSUME_ATFCTS - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1) - && INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS) - __have_atfcts = -1; - else -# endif - if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - return __xstat32_conv (vers, &st64, st); - else - { - __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); - return -1; - } - } -#endif - -#ifndef __ASSUME_ATFCTS - if (__glibc_unlikely (flag & ~AT_SYMLINK_NOFOLLOW)) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - if (vers == _STAT_VER_KERNEL) - { - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat, err, 2, file, - (struct kernel_stat *) st); - else - result = INTERNAL_SYSCALL (stat, err, 2, file, - (struct kernel_stat *) st); - goto out; - } - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat64, err, 2, file, &st64); - else - result = INTERNAL_SYSCALL (stat64, err, 2, file, &st64); - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) + result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, &st64, flag); + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) return __xstat32_conv (vers, &st64, st); - - out: - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) + else { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); + return -1; } - - return result; -#endif } libc_hidden_def (__fxstatat) #ifdef XSTAT_IS_XSTAT64 diff --git a/sysdeps/unix/sysv/linux/linkat.c b/sysdeps/unix/sysv/linux/linkat.c index 29cefb8192..e150486a30 100644 --- a/sysdeps/unix/sysv/linux/linkat.c +++ b/sysdeps/unix/sysv/linux/linkat.c @@ -21,9 +21,10 @@ #include <stdio.h> #include <sysdep.h> #include <unistd.h> -#include <kernel-features.h> +/* Consider moving to syscalls.list. */ + /* Make a link to FROM named TO but relative paths in TO and FROM are interpreted relative to FROMFD and TOFD respectively. */ int @@ -34,87 +35,5 @@ linkat (fromfd, from, tofd, to, flags) const char *to; int flags; { - int result; - -#ifdef __NR_linkat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (linkat, 5, fromfd, from, tofd, to, flags); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - /* Without kernel support we cannot handle AT_SYMLINK_FOLLOW. */ - if (flags != 0) - { - __set_errno (EINVAL); - return -1; - } - - static const char procfd[] = "/proc/self/fd/%d/%s"; - char *buffrom = NULL; - - if (fromfd != AT_FDCWD && from[0] != '/') - { - size_t filelen = strlen (from); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - /* 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; - buffrom = alloca (buflen); - - __snprintf (buffrom, buflen, procfd, fromfd, from); - from = buffrom; - } - - char *bufto = NULL; - - if (tofd != AT_FDCWD && to[0] != '/') - { - size_t filelen = strlen (to); - /* 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; - bufto = alloca (buflen); - - __snprintf (bufto, buflen, procfd, tofd, to); - to = bufto; - } - - INTERNAL_SYSCALL_DECL (err); - - result = INTERNAL_SYSCALL (link, err, 2, from, to); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno_2 (INTERNAL_SYSCALL_ERRNO (result, err), tofd, bufto, - fromfd, buffrom); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (linkat, 5, fromfd, from, tofd, to, flags); } diff --git a/sysdeps/unix/sysv/linux/m68k/fchownat.c b/sysdeps/unix/sysv/linux/m68k/fchownat.c deleted file mode 100644 index dfed76aeb4..0000000000 --- a/sysdeps/unix/sysv/linux/m68k/fchownat.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/i386/fchownat.c> diff --git a/sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c b/sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c index 4003b6e63f..68d0df840e 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c +++ b/sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c @@ -26,8 +26,6 @@ #include <sysdep.h> #include <sys/syscall.h> -#include <kernel-features.h> - #include <xstatconv.h> /* Get information about the file NAME in BUF. */ @@ -45,65 +43,13 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) INTERNAL_SYSCALL_DECL (err); struct kernel_stat kst; -#ifdef __NR_newfstatat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag); -# ifndef __ASSUME_ATFCTS - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1) - && INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS) - __have_atfcts = -1; - else -# endif - if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - return __xstat64_conv (vers, &kst, st); - else - { - __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); - return -1; - } - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_SYMLINK_NOFOLLOW) + result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag); + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) + return __xstat64_conv (vers, &kst, st); + else { - __set_errno (EINVAL); + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); 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; - } - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat, err, 2, file, &kst); - else - result = INTERNAL_SYSCALL (stat, err, 2, file, &kst); - - if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)) - return __xstat64_conv (vers, &kst, st); - - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - return -1; -#endif } libc_hidden_def (__fxstatat64) diff --git a/sysdeps/unix/sysv/linux/mkdirat.c b/sysdeps/unix/sysv/linux/mkdirat.c index 77099f3533..9de1058b3f 100644 --- a/sysdeps/unix/sysv/linux/mkdirat.c +++ b/sysdeps/unix/sysv/linux/mkdirat.c @@ -21,10 +21,11 @@ #include <stdio.h> #include <string.h> #include <sys/stat.h> -#include <kernel-features.h> #include <sysdep-cancel.h> +/* Consider moving to syscalls.list. */ + /* Create a new directory with permission bits MODE. But interpret relative PATH names relative to the directory associated with FD. */ int @@ -33,59 +34,5 @@ mkdirat (fd, file, mode) const char *file; mode_t mode; { - int res; - -#ifdef __NR_mkdirat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - res = INLINE_SYSCALL (mkdirat, 3, fd, file, mode); -# ifndef __ASSUME_ATFCTS - if (res == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return res; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - res = INTERNAL_SYSCALL (mkdir, err, 2, file, mode); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (res, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (res, err), fd, buf); - res = -1; - } - - return res; -#endif + return INLINE_SYSCALL (mkdirat, 3, fd, file, mode); } diff --git a/sysdeps/unix/sysv/linux/openat.c b/sysdeps/unix/sysv/linux/openat.c index 2cf233b8de..36555b958f 100644 --- a/sysdeps/unix/sysv/linux/openat.c +++ b/sysdeps/unix/sysv/linux/openat.c @@ -22,46 +22,12 @@ #include <stdio.h> #include <string.h> #include <sys/stat.h> -#include <kernel-features.h> #include <sysdep-cancel.h> #include <not-cancel.h> #ifndef OPENAT # define OPENAT openat - -# ifndef __ASSUME_ATFCTS -/* Set errno after a failed call. If BUF is not null, - it is a /proc/self/fd/ path name we just tried to use. */ -void -attribute_hidden -__atfct_seterrno (int errval, int fd, const char *buf) -{ - if (buf != NULL) - { - struct stat64 st; - - if (errval == ENOTDIR || errval == ENOENT) - { - /* This can mean either the file descriptor is invalid or - /proc is not mounted. */ - if (__fxstat64 (_STAT_VER, fd, &st) != 0) - /* errno is already set correctly. */ - return; - - /* If /proc is not mounted there is nothing we can do. */ - if ((errval != ENOTDIR || S_ISDIR (st.st_mode)) - && (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0 - || !S_ISDIR (st.st_mode))) - errval = ENOSYS; - } - } - - __set_errno (errval); -} - -int __have_atfcts; -# endif #endif @@ -83,63 +49,7 @@ OPENAT_NOT_CANCEL (fd, file, oflag, mode) oflag |= MORE_OFLAGS; #endif - int res; - -#ifdef __NR_openat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - res = INLINE_SYSCALL (openat, 4, fd, file, oflag, mode); - -# ifndef __ASSUME_ATFCTS - if (res == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return res; - } -#endif - -#ifndef __ASSUME_ATFCTS - INTERNAL_SYSCALL_DECL (err); - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - /* Note: snprintf cannot be canceled. */ - __snprintf (buf, buflen, procfd, fd, file); - file = buf; - } - - res = INTERNAL_SYSCALL (open, err, 3, file, oflag, mode); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (res, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (res, err), fd, buf); - res = -1; - } - - return res; -#endif + return INLINE_SYSCALL (openat, 4, fd, file, oflag, mode); } #define UNDERIZE(name) UNDERIZE_1 (name) diff --git a/sysdeps/unix/sysv/linux/powerpc/fchownat.c b/sysdeps/unix/sysv/linux/powerpc/fchownat.c deleted file mode 100644 index 4e3767a6a0..0000000000 --- a/sysdeps/unix/sysv/linux/powerpc/fchownat.c +++ /dev/null @@ -1,105 +0,0 @@ -/* Copyright (C) 2005-2014 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 <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <limits.h> -#include <sysdep.h> -#include <stdlib.h> - -#include <kernel-features.h> - -/* - In Linux 2.1.x the chown functions have been changed. A new function lchown - was introduced. The new chown now follows symlinks - the old chown and the - new lchown do not follow symlinks. - This file emulates chown() under the old kernels. -*/ - -int -fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag) -{ - int result; - -#ifdef __NR_fchownat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (fchownat, 5, fd, file, owner, group, flag); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_SYMLINK_NOFOLLOW) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lchown, err, 3, file, owner, group); - else - result = INTERNAL_SYSCALL (chown, err, 3, file, owner, group); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - return -1; - } - - return result; - -#endif -} diff --git a/sysdeps/unix/sysv/linux/readlinkat.c b/sysdeps/unix/sysv/linux/readlinkat.c index 7d096d3c36..8755fc8fe0 100644 --- a/sysdeps/unix/sysv/linux/readlinkat.c +++ b/sysdeps/unix/sysv/linux/readlinkat.c @@ -23,9 +23,10 @@ #include <string.h> #include <sysdep.h> #include <unistd.h> -#include <kernel-features.h> +/* Consider moving to syscalls.list. */ + /* Read the contents of the symbolic link PATH relative to FD into no more than LEN bytes of BUF. */ ssize_t @@ -35,61 +36,6 @@ readlinkat (fd, path, buf, len) char *buf; size_t len; { - int result; - -#ifdef __NR_readlinkat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (readlinkat, 4, fd, path, buf, len); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *pathbuf = NULL; - - if (fd != AT_FDCWD && path[0] != '/') - { - size_t pathlen = strlen (path); - if (__glibc_unlikely (pathlen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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 + pathlen; - pathbuf = __alloca (buflen); - - __snprintf (pathbuf, buflen, procfd, fd, path); - path = pathbuf; - } - - INTERNAL_SYSCALL_DECL (err); - - result = INTERNAL_SYSCALL (readlink, err, 3, path, buf, len); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, pathbuf); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (readlinkat, 4, fd, path, buf, len); } libc_hidden_def (readlinkat) diff --git a/sysdeps/unix/sysv/linux/renameat.c b/sysdeps/unix/sysv/linux/renameat.c index dbc4c75c01..6f2e148fa4 100644 --- a/sysdeps/unix/sysv/linux/renameat.c +++ b/sysdeps/unix/sysv/linux/renameat.c @@ -19,88 +19,10 @@ #include <fcntl.h> #include <stdio.h> #include <string.h> -#include <kernel-features.h> #include <sysdep.h> -#ifndef __ASSUME_ATFCTS -void -attribute_hidden -__atfct_seterrno_2 (int errval, int fd1, const char *buf1, int fd2, - const char *buf2) -{ - if (buf1 != NULL || buf2 != NULL) - { - struct stat64 st; - - if (errval == ENOTDIR) - { - /* This can mean either the file descriptor is invalid or - /proc is not mounted. */ - if (buf1 != NULL) - { - if (__fxstat64 (_STAT_VER, fd1, &st) != 0) - /* errno is already set correctly. */ - return; - - /* If /proc is not mounted there is nothing we can do. */ - if (S_ISDIR (st.st_mode) - && (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0 - || !S_ISDIR (st.st_mode))) - { - errval = ENOSYS; - goto out; - } - } - - if (buf2 != NULL) - { - if (__fxstat64 (_STAT_VER, fd2, &st) != 0) - /* errno is already set correctly. */ - return; - - /* If /proc is not mounted there is nothing we can do. */ - if (S_ISDIR (st.st_mode) - && (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0 - || !S_ISDIR (st.st_mode))) - errval = ENOSYS; - } - } - else if (errval == ENOENT) - { - /* This could mean the file descriptor is not valid. We - reuse BUF for the stat call. Find the slash after the - file descriptor number. */ - if (buf1 != NULL) - { - *(char *) strchr (buf1 + sizeof "/proc/self/fd", '/') = '\0'; - - int e = __lxstat64 (_STAT_VER, buf1, &st); - if ((e == -1 && errno == ENOENT) - ||(e == 0 && !S_ISLNK (st.st_mode))) - { - errval = EBADF; - goto out; - } - } - - if (buf2 != NULL) - { - *(char *) strchr (buf2 + sizeof "/proc/self/fd", '/') = '\0'; - - int e = __lxstat64 (_STAT_VER, buf2, &st); - if ((e == -1 && errno == ENOENT) - ||(e == 0 && !S_ISLNK (st.st_mode))) - errval = EBADF; - } - } - } - - out: - __set_errno (errval); -} -#endif - +/* Consider moving to syscalls.list. */ /* Rename the file OLD relative to OLDFD to NEW relative to NEWFD. */ int @@ -110,86 +32,5 @@ renameat (oldfd, old, newfd, new) int newfd; const char *new; { - int result; - -#ifdef __NR_renameat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (renameat, 4, oldfd, old, newfd, new); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - static const char procfd[] = "/proc/self/fd/%d/%s"; - char *bufold = NULL; - - if (oldfd != AT_FDCWD && old[0] != '/') - { - size_t filelen = strlen (old); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - /* 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; - bufold = alloca (buflen); - - __snprintf (bufold, buflen, procfd, oldfd, old); - old = bufold; - } - - char *bufnew = NULL; - - if (newfd != AT_FDCWD && new[0] != '/') - { - size_t filelen = strlen (new); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - /* 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; - bufnew = alloca (buflen); - - __snprintf (bufnew, buflen, procfd, newfd, new); - new = bufnew; - } - - INTERNAL_SYSCALL_DECL (err); - - result = INTERNAL_SYSCALL (rename, err, 2, old, new); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno_2 (INTERNAL_SYSCALL_ERRNO (result, err), newfd, bufnew, - oldfd, bufold); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (renameat, 4, oldfd, old, newfd, new); } diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c deleted file mode 100644 index dfed76aeb4..0000000000 --- a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/i386/fchownat.c> diff --git a/sysdeps/unix/sysv/linux/sh/fchownat.c b/sysdeps/unix/sysv/linux/sh/fchownat.c deleted file mode 100644 index dfed76aeb4..0000000000 --- a/sysdeps/unix/sysv/linux/sh/fchownat.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/i386/fchownat.c> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c b/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c deleted file mode 100644 index dfed76aeb4..0000000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/unix/sysv/linux/i386/fchownat.c> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/dl-fxstatat64.c b/sysdeps/unix/sysv/linux/sparc/sparc64/dl-fxstatat64.c index 339e5f4335..330b33f7c7 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/dl-fxstatat64.c +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/dl-fxstatat64.c @@ -1,6 +1 @@ -/* In this implementation we do not really care whether the call fails - because of missing kernel support since we do not even call the - function in this case. */ -#undef __ASSUME_ATFCTS -#define __ASSUME_ATFCTS 1 #include "fxstatat.c" diff --git a/sysdeps/unix/sysv/linux/symlinkat.c b/sysdeps/unix/sysv/linux/symlinkat.c index 0c5ed3f5f9..1166525cba 100644 --- a/sysdeps/unix/sysv/linux/symlinkat.c +++ b/sysdeps/unix/sysv/linux/symlinkat.c @@ -23,9 +23,10 @@ #include <string.h> #include <sysdep.h> #include <unistd.h> -#include <kernel-features.h> +/* Consider moving to syscalls.list. */ + /* Make a symbolic link to FROM named TO relative to TOFD. */ int symlinkat (from, tofd, to) @@ -33,60 +34,5 @@ symlinkat (from, tofd, to) int tofd; const char *to; { - int result; - -#ifdef __NR_symlinkat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (symlinkat, 3, from, tofd, to); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - - if (tofd != AT_FDCWD && to[0] != '/') - { - size_t tolen = strlen (to); - if (__glibc_unlikely (tolen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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 + tolen; - buf = __alloca (buflen); - - __snprintf (buf, buflen, procfd, tofd, to); - to = buf; - } - - INTERNAL_SYSCALL_DECL (err); - - result = INTERNAL_SYSCALL (symlink, err, 2, from, to); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), tofd, buf); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (symlinkat, 3, from, tofd, to); } diff --git a/sysdeps/unix/sysv/linux/unlinkat.c b/sysdeps/unix/sysv/linux/unlinkat.c index 6366c867e1..2d5bd74170 100644 --- a/sysdeps/unix/sysv/linux/unlinkat.c +++ b/sysdeps/unix/sysv/linux/unlinkat.c @@ -24,9 +24,10 @@ #include <string.h> #include <sysdep.h> #include <unistd.h> -#include <kernel-features.h> +/* Consider moving to syscalls.list. */ + /* Remove the link named NAME. */ int unlinkat (fd, file, flag) @@ -34,69 +35,5 @@ unlinkat (fd, file, flag) const char *file; int flag; { - int result; - -#ifdef __NR_unlinkat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - result = INLINE_SYSCALL (unlinkat, 3, fd, file, flag); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if (flag & ~AT_REMOVEDIR) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - if (flag & AT_REMOVEDIR) - result = INTERNAL_SYSCALL (rmdir, err, 1, file); - else - result = INTERNAL_SYSCALL (unlink, err, 1, file); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; -#endif + return INLINE_SYSCALL (unlinkat, 3, fd, file, flag); } diff --git a/sysdeps/unix/sysv/linux/wordsize-64/dl-fxstatat64.c b/sysdeps/unix/sysv/linux/wordsize-64/dl-fxstatat64.c index 339e5f4335..330b33f7c7 100644 --- a/sysdeps/unix/sysv/linux/wordsize-64/dl-fxstatat64.c +++ b/sysdeps/unix/sysv/linux/wordsize-64/dl-fxstatat64.c @@ -1,6 +1 @@ -/* In this implementation we do not really care whether the call fails - because of missing kernel support since we do not even call the - function in this case. */ -#undef __ASSUME_ATFCTS -#define __ASSUME_ATFCTS 1 #include "fxstatat.c" diff --git a/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c b/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c index 5aec8af39c..107c2979de 100644 --- a/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c +++ b/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c @@ -27,7 +27,6 @@ #include <sys/stat.h> #include <sysdep.h> -#include <kernel-features.h> #include <sys/syscall.h> @@ -41,71 +40,7 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag) return -1; } - int res; - -#ifdef __NR_newfstatat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - res = INLINE_SYSCALL (newfstatat, 4, fd, file, st, flag); -# ifndef __ASSUME_ATFCTS - if (res == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return res; - } -#endif - -#ifndef __ASSUME_ATFCTS - if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0) - { - __set_errno (EINVAL); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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); - - if (flag & AT_SYMLINK_NOFOLLOW) - res = INTERNAL_SYSCALL (lstat, err, 2, file, st); - else - res = INTERNAL_SYSCALL (stat, err, 2, file, st); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (res, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (res, err), fd, buf); - res = -1; - } - - return res; -#endif + return INLINE_SYSCALL (newfstatat, 4, fd, file, st, flag); } libc_hidden_def (__fxstatat) #undef __fxstatat64 diff --git a/sysdeps/unix/sysv/linux/xmknodat.c b/sysdeps/unix/sysv/linux/xmknodat.c index 9e3643f71b..e2016a248b 100644 --- a/sysdeps/unix/sysv/linux/xmknodat.c +++ b/sysdeps/unix/sysv/linux/xmknodat.c @@ -24,7 +24,6 @@ #include <sys/sysmacros.h> #include <sysdep.h> -#include <kernel-features.h> #include <sys/syscall.h> @@ -48,51 +47,7 @@ __xmknodat (int vers, int fd, const char *file, mode_t mode, dev_t *dev) return -1; } -#ifdef __NR_mknodat -# ifndef __ASSUME_ATFCTS - if (__have_atfcts >= 0) -# endif - { - int res = INLINE_SYSCALL (mknodat, 4, fd, file, mode, - (unsigned int) k_dev); -# ifndef __ASSUME_ATFCTS - if (res == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return res; - } -#endif - -#ifndef __ASSUME_ATFCTS - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - 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; - } - - return INLINE_SYSCALL (mknod, 3, file, mode, (unsigned int) k_dev); -#endif + return INLINE_SYSCALL (mknodat, 4, fd, file, mode, (unsigned int) k_dev); } libc_hidden_def (__xmknodat) |