diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/fpathconf.c | 82 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/pathconf.c | 68 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/fpathconf.c | 69 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/linux_fsinfo.h | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/pathconf.c | 76 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/pathconf.h | 76 |
6 files changed, 119 insertions, 256 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/fpathconf.c b/sysdeps/unix/sysv/linux/alpha/fpathconf.c index 1820e5b229..a8a24de1f8 100644 --- a/sysdeps/unix/sysv/linux/alpha/fpathconf.c +++ b/sysdeps/unix/sysv/linux/alpha/fpathconf.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1991,1995,1996,1998,2000,2002 Free Software Foundation, Inc. +/* Get file-specific information about a descriptor. Linux/Alpha version. + Copyright (C) 1991,95,96,98,99,2000,2001,2002 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 @@ -16,36 +17,25 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <errno.h> -#include <stddef.h> #include <unistd.h> -#include <limits.h> #include <sys/statfs.h> -#include <linux_fsinfo.h> +static long int linux_fpathconf (int fd, int name); -/* The Linux kernel header mentioned this as a kind of generic value. */ -#define LINUX_LINK_MAX 127 +/* Define this first, so it can be inlined. */ +#define __fpathconf static linux_fpathconf +#include <sysdeps/unix/sysv/linux/fpathconf.c> -static long int default_fpathconf (int fd, int name); -/* Get file-specific information about descriptor FD. */ +/* Get file-specific information about FD. */ long int -__fpathconf (fd, name) - int fd; - int name; +__pathconf (int fd, int name) { - if (fd < 0) - { - __set_errno (EBADF); - return -1; - } - if (name == _PC_FILESIZEBITS) { - /* Test whether this is on a ext2 filesystem which supports large - files. */ + /* Test whether this is on a ext2 or UFS filesystem which + support large files. */ struct statfs fs; if (__fstatfs (fd, &fs) < 0 @@ -57,56 +47,6 @@ __fpathconf (fd, name) /* This filesystem supported files >2GB. */ return 64; } - if (name == _PC_LINK_MAX) - { - struct statfs fsbuf; - - /* Determine the filesystem type. */ - if (__fstatfs (fd, &fsbuf) < 0) - /* not possible, return the default value. */ - return LINUX_LINK_MAX; - - switch (fsbuf.f_type) - { - case EXT2_SUPER_MAGIC: - return EXT2_LINK_MAX; - - case MINIX_SUPER_MAGIC: - case MINIX_SUPER_MAGIC2: - return MINIX_LINK_MAX; - - case MINIX2_SUPER_MAGIC: - case MINIX2_SUPER_MAGIC2: - return MINIX2_LINK_MAX; - - case XENIX_SUPER_MAGIC: - return XENIX_LINK_MAX; - case SYSV4_SUPER_MAGIC: - case SYSV2_SUPER_MAGIC: - return SYSV_LINK_MAX; - - case COH_SUPER_MAGIC: - return COH_LINK_MAX; - - case UFS_MAGIC: - case UFS_CIGAM: - return UFS_LINK_MAX; - - case REISERFS_SUPER_MAGIC: - return REISERFS_LINK_MAX; - - case XFS_SUPER_MAGIC: - return XFS_LINK_MAX; - - default: - return LINUX_LINK_MAX; - } - } - - /* Fallback to the generic version. */ - return default_fpathconf (fd, name); + return linux_fpathconf (fd, name); } - -#define __fpathconf static default_fpathconf -#include <sysdeps/posix/fpathconf.c> diff --git a/sysdeps/unix/sysv/linux/alpha/pathconf.c b/sysdeps/unix/sysv/linux/alpha/pathconf.c index 45c1724dcf..1b35dc87cf 100644 --- a/sysdeps/unix/sysv/linux/alpha/pathconf.c +++ b/sysdeps/unix/sysv/linux/alpha/pathconf.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1991, 1995, 1996, 1998, 2000 Free Software Foundation, Inc. +/* Get file-specific information about a file. Linux/Alpha version. + Copyright (C) 1991,95,96,98,99,2000,2001,2002 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 @@ -16,24 +17,19 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <errno.h> -#include <stddef.h> #include <unistd.h> -#include <limits.h> -#include <fcntl.h> #include <sys/statfs.h> -#include <linux_fsinfo.h> +static long int linux_pathconf (const char *file, int name); +/* Define this first, so it can be inlined. */ +#define __pathconf static linux_pathconf +#include <sysdeps/unix/sysv/linux/pathconf.c> -/* The Linux kernel header mentioned this as a kind of generic value. */ -#define LINUX_LINK_MAX 127 -static long int default_pathconf (const char *path, int name); - -/* Get file-specific information about PATH. */ +/* Get file-specific information about FILE. */ long int -__pathconf (const char *path, int name) +__pathconf (const char *file, int name) { if (name == _PC_FILESIZEBITS) { @@ -41,7 +37,7 @@ __pathconf (const char *path, int name) support large files. */ struct statfs fs; - if (__statfs (path, &fs) < 0 + if (__statfs (file, &fs) < 0 || (fs.f_type != EXT2_SUPER_MAGIC && fs.f_type != UFS_MAGIC && fs.f_type != UFS_CIGAM)) @@ -50,50 +46,6 @@ __pathconf (const char *path, int name) /* This filesystem supported files >2GB. */ return 64; } - if (name == _PC_LINK_MAX) - { - struct statfs fsbuf; - - /* Determine the filesystem type. */ - if (__statfs (path, &fsbuf) < 0) - /* not possible, return the default value. */ - return LINUX_LINK_MAX; - - switch (fsbuf.f_type) - { - case EXT2_SUPER_MAGIC: - return EXT2_LINK_MAX; - - case MINIX_SUPER_MAGIC: - case MINIX_SUPER_MAGIC2: - return MINIX_LINK_MAX; - - case MINIX2_SUPER_MAGIC: - case MINIX2_SUPER_MAGIC2: - return MINIX2_LINK_MAX; - - case XENIX_SUPER_MAGIC: - return XENIX_LINK_MAX; - case SYSV4_SUPER_MAGIC: - case SYSV2_SUPER_MAGIC: - return SYSV_LINK_MAX; - - case COH_SUPER_MAGIC: - return COH_LINK_MAX; - - case UFS_MAGIC: - case UFS_CIGAM: - return UFS_LINK_MAX; - - default: - return LINUX_LINK_MAX; - } - } - - /* Fallback to the generic version. */ - return default_pathconf (path, name); + return linux_pathconf (file, name); } - -#define __pathconf static default_pathconf -#include <sysdeps/posix/pathconf.c> diff --git a/sysdeps/unix/sysv/linux/fpathconf.c b/sysdeps/unix/sysv/linux/fpathconf.c index 108ffa705a..a43a58767d 100644 --- a/sysdeps/unix/sysv/linux/fpathconf.c +++ b/sysdeps/unix/sysv/linux/fpathconf.c @@ -1,4 +1,4 @@ -/* Linux specific extensions to fpathconf. +/* Get file-specific information about descriptor FD. Linux version. Copyright (C) 1991,95,96,98,99,2000,2001,2002 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -17,19 +17,14 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <errno.h> -#include <unistd.h> -#include <limits.h> -#include <sys/statfs.h> - -#include "linux_fsinfo.h" - - -/* The Linux kernel header mentioned this as a kind of generic value. */ -#define LINUX_LINK_MAX 127 +#include "pathconf.h" static long int posix_fpathconf (int fd, int name); +/* Define this first, so it can be inlined. */ +#define __fpathconf static posix_fpathconf +#include <sysdeps/posix/fpathconf.c> + /* Get file-specific information about descriptor FD. */ long int @@ -40,58 +35,8 @@ __fpathconf (fd, name) if (name == _PC_LINK_MAX) { struct statfs fsbuf; - - /* Determine the filesystem type. */ - if (__fstatfs (fd, &fsbuf) < 0) - { - if (errno == ENOSYS) - /* not possible, return the default value. */ - return LINUX_LINK_MAX; - - /* Some error occured. */ - return -1; - } - - switch (fsbuf.f_type) - { - case EXT2_SUPER_MAGIC: - return EXT2_LINK_MAX; - - case MINIX_SUPER_MAGIC: - case MINIX_SUPER_MAGIC2: - return MINIX_LINK_MAX; - - case MINIX2_SUPER_MAGIC: - case MINIX2_SUPER_MAGIC2: - return MINIX2_LINK_MAX; - - case XENIX_SUPER_MAGIC: - return XENIX_LINK_MAX; - - case SYSV4_SUPER_MAGIC: - case SYSV2_SUPER_MAGIC: - return SYSV_LINK_MAX; - - case COH_SUPER_MAGIC: - return COH_LINK_MAX; - - case UFS_MAGIC: - case UFS_CIGAM: - return UFS_LINK_MAX; - - case REISERFS_SUPER_MAGIC: - return REISERFS_LINK_MAX; - - case XFS_SUPER_MAGIC: - return XFS_LINK_MAX; - - default: - return LINUX_LINK_MAX; - } + return statfs_link_max (__fstatfs (fd, &fsbuf), &fsbuf); } return posix_fpathconf (fd, name); } - -#define __fpathconf static posix_fpathconf -#include <sysdeps/posix/fpathconf.c> diff --git a/sysdeps/unix/sysv/linux/linux_fsinfo.h b/sysdeps/unix/sysv/linux/linux_fsinfo.h index 60b4721e10..8aa7e28c7c 100644 --- a/sysdeps/unix/sysv/linux/linux_fsinfo.h +++ b/sysdeps/unix/sysv/linux/linux_fsinfo.h @@ -115,4 +115,8 @@ #define XENIX_LINK_MAX 126 /* ?? */ #define XFS_LINK_MAX 2147483647 +/* The Linux kernel header mentioned this as a kind of generic value. */ +#define LINUX_LINK_MAX 127 + + #endif /* linux_fsinfo.h */ diff --git a/sysdeps/unix/sysv/linux/pathconf.c b/sysdeps/unix/sysv/linux/pathconf.c index 8f21b241cc..50a4b3ada4 100644 --- a/sysdeps/unix/sysv/linux/pathconf.c +++ b/sysdeps/unix/sysv/linux/pathconf.c @@ -1,5 +1,5 @@ -/* Linux specific extensions to pathconf. - Copyright (C) 1991,95,96,98,99,2000,2001 Free Software Foundation, Inc. +/* Get file-specific information about a file. Linux version. + Copyright (C) 1991,95,96,98,99,2000,2001,2002 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 @@ -17,78 +17,24 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <errno.h> -#include <unistd.h> -#include <limits.h> -#include <sys/statfs.h> +#include "pathconf.h" -#include "linux_fsinfo.h" +static long int posix_pathconf (const char *file, int name); - -/* The Linux kernel header mentioned this as a kind of generic value. */ -#define LINUX_LINK_MAX 127 - -static long int posix_pathconf (const char *path, int name); +/* Define this first, so it can be inlined. */ +#define __pathconf static posix_pathconf +#include <sysdeps/posix/pathconf.c> -/* Get file-specific information about descriptor FD. */ +/* Get file-specific information about FILE. */ long int -__pathconf (path, name) - const char *path; - int name; +__pathconf (const char *file, int name) { if (name == _PC_LINK_MAX) { struct statfs fsbuf; - - /* Determine the filesystem type. */ - if (__statfs (path, &fsbuf) < 0) - { - if (errno == ENOSYS) - /* not possible, return the default value. */ - return LINUX_LINK_MAX; - - /* Some error occured. */ - return -1; - } - - switch (fsbuf.f_type) - { - case EXT2_SUPER_MAGIC: - return EXT2_LINK_MAX; - - case MINIX_SUPER_MAGIC: - case MINIX_SUPER_MAGIC2: - return MINIX_LINK_MAX; - - case MINIX2_SUPER_MAGIC: - case MINIX2_SUPER_MAGIC2: - return MINIX2_LINK_MAX; - - case XENIX_SUPER_MAGIC: - return XENIX_LINK_MAX; - - case SYSV4_SUPER_MAGIC: - case SYSV2_SUPER_MAGIC: - return SYSV_LINK_MAX; - - case COH_SUPER_MAGIC: - return COH_LINK_MAX; - - case UFS_MAGIC: - case UFS_CIGAM: - return UFS_LINK_MAX; - - case REISERFS_SUPER_MAGIC: - return REISERFS_LINK_MAX; - - default: - return LINUX_LINK_MAX; - } + return statfs_link_max (__statfs (file, &fsbuf), &fsbuf); } - return posix_pathconf (path, name); + return posix_pathconf (file, name); } - -#define __pathconf static posix_pathconf -#include <sysdeps/posix/pathconf.c> diff --git a/sysdeps/unix/sysv/linux/pathconf.h b/sysdeps/unix/sysv/linux/pathconf.h new file mode 100644 index 0000000000..396563965e --- /dev/null +++ b/sysdeps/unix/sysv/linux/pathconf.h @@ -0,0 +1,76 @@ +/* Common parts of Linux implementation of pathconf and fpathconf. + Copyright (C) 1991,95,96,98,99,2000,2001,2002 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 <unistd.h> +#include <errno.h> +#include <sys/statfs.h> +#include "linux_fsinfo.h" + +/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */ + +static long int +statfs_link_max (int result, const struct statfs *fsbuf) +{ + if (result < 0) + { + if (errno == ENOSYS) + /* Not possible, return the default value. */ + return LINUX_LINK_MAX; + + /* Some error occured. */ + return -1; + } + + switch (fsbuf->f_type) + { + case EXT2_SUPER_MAGIC: + return EXT2_LINK_MAX; + + case MINIX_SUPER_MAGIC: + case MINIX_SUPER_MAGIC2: + return MINIX_LINK_MAX; + + case MINIX2_SUPER_MAGIC: + case MINIX2_SUPER_MAGIC2: + return MINIX2_LINK_MAX; + + case XENIX_SUPER_MAGIC: + return XENIX_LINK_MAX; + + case SYSV4_SUPER_MAGIC: + case SYSV2_SUPER_MAGIC: + return SYSV_LINK_MAX; + + case COH_SUPER_MAGIC: + return COH_LINK_MAX; + + case UFS_MAGIC: + case UFS_CIGAM: + return UFS_LINK_MAX; + + case REISERFS_SUPER_MAGIC: + return REISERFS_LINK_MAX; + + case XFS_SUPER_MAGIC: + return XFS_LINK_MAX; + + default: + return LINUX_LINK_MAX; + } +} |